JP2004026032A - Small child seat structure for bicycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small child seat structure for a bicycle having different functions of changing its form into a foldable baby buggy and an ordinary small child seat. <P>SOLUTION: The small child seat structure for the bicycle comprises a backrest unit 20, an expandable handle set 30 arranged at the upper parts of a pair of inner pipes 32 movable up and down between a sleeve body 23 to be connected to the back side of the backrest unit 20 via a fixing block 22 and each of a semicircular guide passage 231 for the sleeve body 23 and a sliding groove 214 protruded in the back side of the backrest unit 20, a seat unit 40 arranged at the lower part of the backrest unit, two front wheel bracket sets 50, two rear bracket sets 60, a base unit 70 to be connected to the back side of an inversely L-shaped seat plate 411 of the seat unit 40, an installation washer 80, a plurality of insertion pins, a plurality of screws, and a slender round rod. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an infant seat structure of a bicycle, and more specifically, it can be changed to a folding baby buggy or a normal infant chair while being an infant seat installed on a bicycle. The present invention relates to an infant seat structure configured to have different functions.
[0002]
[Prior art]
A conventional bicycle seat structure shown in FIG. 1 generally includes a backrest body 10, armrests 11, 11 extending on both sides thereof, a seat plate 12, and a hem plate extending downward from both sides thereof. 13, 13; footrests 14, 14 connected to the armrests 11 on the inside and to the hem plates 13 on the sides; foot protection members 15 attached to the outside of the footrests 14 , 15.
[0003]
[Problems to be solved by the invention]
Such a conventional bicycle infant seat structure has the following disadvantages.
First of all, the seat structure is functionally simple and inefficient and practical because it can only be used on bicycles.
Second, the angle of the backrest body 10 cannot be adjusted to meet the user's requirement for comfort.
Third, since the footrest 14 is fixedly installed, it cannot be changed according to its height when different users sit.
Accordingly, a first object of the present invention is to provide a multi-functional type that can be applied to a bicycle carrier as an infant seat of a bicycle, or can be used as a baby buggy or as an ordinary infant chair. An object of the present invention is to provide a bicycle seat structure.
[0004]
It is a second object of the present invention to provide an improved bicycle infant seat structure having a backrest unit that can be adjusted to various angles to suit the comfort of the user.
[0005]
A third object of the present invention is to provide an improved bicycle infant seat structure with an adjustable footrest that can be adjusted to suit different user heights.
[0006]
[Means for Solving the Problems]
The present invention provides a backrest unit, a telescopic handle set, a seat unit, two front wheel bracket sets, two rear wheel bracket sets, a base unit, a mounting seat, a plurality of insertion pins, An infant seat structure for a bicycle comprising a plurality of screws and an elongated round bar, wherein the infant seat structure comprises a backrest body 21 and a backrest body 21 fixed to a back surface of the backrest body. The U-shaped sleeve body 23 fixed by the fixing member 24 via the block 22 and the semicircular guide portion 231 formed on the sleeve body 23 move the handle set 30 up and down by vertically moving. The telescopic handle set 30 is composed of a holding friction block 25 and an eccentric means 26. An inner pipe 32 movable in the vertical direction, a lower half pipe 33 for fixing the upper end of the inner pipe 32, and an upper pipe 34 connected to the lower pipe 33 so as to cover the opening of the lower pipe 33 from above. An outer tube 35 is disposed around the upper and lower tubes 34 and 33 connected to each other, and locking covers 36 are attached to left and right opening portions. A connecting member 42 for connecting the main body 41 and the backrest body 21, and an L arranged such that one horizontal end is supported on the back side of the seat main body 41 and the other end is located on the rear side of the backrest main body 1. The connecting member, which comprises a character-shaped frame 43, a pair of footrest plates 44 detachably mounted below the front side of the seat body, and a pair of support plates 45 connected to the pair of footrest plates 44. Reference numeral 42 denotes an elongated box-like body, An L-shaped sliding groove 421 disposed and an elongated fixing piece 422 protruding forward thereof are formed, and the front wheel bracket set 50 is a rotary head mounted below a side plate of the seat body. 51, a locking bolt 52, an engaging block 53, a large spring 54, a small spring 55, a front wheel bracket 56 provided with a rotating wheel 563 rotatably connected, and a nut. The wheel bracket set 60 includes a rivet 61, a rear wheel bracket 62, a reinforcing plate 63, a connecting plate 64, an elastic plate 65, a compression spring 66, a rotating wheel 67, and a plurality of ring washers 68. The base unit 70 is configured and rotatably connected to a wheel turning seat 74 disposed on the back side of the seat body 41 by the rivet 61. A main body 71, two locking blocks 72, two springs 73, a wheel turning seat 74, a reinforcing piece 75, two reinforcing rods 76, two spring washers 77, and two keys The mounting seat 80 includes a mounting body 81 which is a trapezoidal housing, two pin blocks 82, two compression springs 83, a pull-out member 84, and two insertions. The elongated round bar is composed of a bolt 85, two triangular fixing pieces 86, and a wing-shaped piece 87. The elongated round bar is connected to an elongated turning hole of the base body 71 and two turning blocks of the wheel turning seat 74. The base body 71 is engaged with the wheel turning seat 74 on the front side thereof, and the base body 71 is installed on the upper surface of the wheel turning seat adjacent to the adjustment block at the rear thereof, Fix the locking block in addition to the adjustment block. On the side to position the adjustment block in the proper position to prevent the base body from coming off during use, and to attach the mounting seat to the bicycle via the triangular securing pieces and wings. Or to the child's seat structure by being fixed to the rear carrier, or by rotating the front wheel bracket and the rear wheel bracket downward to contact the ground and pulling the telescopic handle set to a suitable height for use. By raising it, it becomes a baby buggy or, alternatively, the rear wheel bracket is turned downward and grounded on the floor, and the front wheel bracket is stored in the accommodation groove of the seat body, and the support plate is attached to the seat body. By adjusting to an appropriate height at the L-shaped hook means, grounding on the floor, and positioning the positioning key in a positioning hole of an appropriate height, Characterized in that to be able to be easily adjusted to fit various different use purposes as that in infant chair normal.
[0007]
According to a second aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the two extendable inner tubes are arranged in a semicircular guideway of a sleeve body and an arcuate shape arranged on the rear side of the backrest body. It is characterized in that it can slide in the space formed by the sliding groove.
[0008]
According to a third aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the eccentric is adjacent to the friction block on one side and attached to a semicircular fixing portion of the fixing member at the top and bottom. The means is characterized in that it can be rotated back and forth.
[0009]
According to a fourth aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the L-shaped frame can be moved back and forth for repositioning on the knurled engaging ribs of the seat body, and is used in use. The angle of the backrest body can be adjusted.
[0010]
According to a fifth aspect of the invention, in the bicycle infant seat structure according to the first aspect, the base body can be rotated up and down through two turning blocks of the wheel turning seat.
[0011]
According to a sixth aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the locking block can be rotated up and down through a hollow insertion pillar of the base body.
[0012]
According to a seventh aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the adjusting block is capable of turning back and forth through a turning member of the turning seat.
[0013]
The invention according to claim 8 is the bicycle infant seat structure according to claim 1, wherein the footrest plate engaged with the insertion slot of the seat body is disengaged and suitable before repositioning. It can be adjusted to height.
[0014]
According to a ninth aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the support plate can be adjusted to have an appropriate height at a hook piece of the footrest plate. The repositioning is performed via a positioning key of the L-shaped hook means engaged with the height positioning hole.
[0015]
According to a tenth aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the rotating head is rotatable at one end thereof via a locking bolt fixed to a fixing plate of the seat body. It is characterized by having done.
[0016]
The invention according to claim 11 is the bicycle infant seat structure according to claim 1, wherein the engagement block held inside the rotary head slides back and forth when pressed by the large and small compression springs. It is characterized by being able to.
[0017]
According to a twelfth aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the front wheel bracket is rotated up and down in the semi-arcuate receiving groove defined by the fixing plate of the seat body. It is characterized by becoming.
[0018]
According to a thirteenth aspect of the present invention, in the bicycle infant seat structure according to the first aspect, the rear wheel bracket with the rotating wheel is turned up and down at the wheel turning seat via the keyed connection tool. It is characterized by the following.
[0019]
The invention according to claim 14 is characterized in that the installation seat is moved up and down so as to be able to engage with and disengage from the wheel turning seat.
[0020]
The invention of claim 15 is characterized in that the drawer member can be loosened by being pulled forward and backward behind the installation main body.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the bicycle seat structure of the present invention will be described below with reference to FIGS. 2, 3, and 3A, 3B, 3C, and 3D.
The infant seat of the present invention includes a backrest unit 20, an extendable handle set 30, a seat unit 40, two front wheel bracket sets 50, two rear wheel bracket sets 60, a base unit 70, an installation seat 80, a plurality of seats. It comprises an insertion pin 90, a plurality of screws 91, and an elongated round bar pin 92.
[0022]
First, a description will be given with reference to FIG.
The backrest unit 20 includes a backrest body 21, a fixing block 22, a sleeve body 23, a fixing member 24, a friction block 25, an eccentric means 26, and a telescopic handle set 30.
[0023]
On the back side of the backrest main body 21, a plurality of fixing pillars 211 arranged at both upper and lower portions thereof, a plurality of screw holes 212 indicated by a notched groove 213 at an intermediate portion thereof, and left and right thereof. Sliding grooves 214 each having an arcuate concave portion extending vertically (up and down) are formed on both sides. Below the left and right sides of the backrest body 21, two-stage positioning columns 215 are arranged.
[0024]
The fixing block 22 having a wide upper portion and a narrow bottom portion has fixing columns 221 at triangular positions on the inner upper and lower portions, respectively, and a concave portion for limiting left and right horizontal flanges at an intermediate portion thereof. 222 are formed.
[0025]
Vertically extending semi-circular guide paths 231 are formed in the arms arranged on the left and right sides of the sleeve body 23 which is a U-shaped block body as a whole. At the upper end of each semi-circular guide path 231, a fixing plate 232 extending outward from the left and right is formed, and a fixing hole 233 is formed therein. An elongated slot 234 is formed. An engagement plate 235 which extends outward and downward at the bottom portion extending in the lateral direction of the sleeve body 23 to form a pair of screw holes 236 and a pair of U-shaped engagement slots 237 limited to both sides. Is formed.
[0026]
The fixing member 24 is provided with a pair of fixing plates 241 extending outward on both left and right sides, and each fixing plate 241 has a through hole. Further, a pair of cut-and-raised pieces 242 are formed in the curved portion, and an eccentric means 26 described later is pivotally connected to the curved portion.
[0027]
The friction block 25, which is an elongated block, is defined by an elongated groove 251 on the front side. The eccentric means 26 is provided with an elliptical pivoting head 261 disposed at one end thereof and a pressing blade 262 extending to the other end. The elliptical pivot head 261 has a through hole at a portion off the center.
[0028]
The extendable handle set 30 includes an engagement member 31, an inner tube 32 that can be extended and contracted, a lower tube 33, an upper tube 34, an outer tube 35, and an engagement cover 36 attached to both ends of the outer tube 35. You.
[0029]
The cylindrical locking member 31 fitted to the lower end of the inner tube 32 has a stepped portion and a pinhole 311 is formed around the outside of the small diameter step. A fixing hole 321 is formed around the outer periphery of the upper and lower ends of the extendable inner tube 32 which is a round pipe body. The lower tube 33, which is an upwardly-segmented cylindrical body, has a plurality of locking pillars 331 distributed at equal intervals on the bottom thereof and a pair of engaging grooves 332 arranged on both left and right sides thereof. Is formed. A plurality of locking posts 341 distributed at equal intervals at the bottom of the upper tube 34 of the downward half-cylinder, and a pair of protruding fixing posts 342 disposed on both left and right sides thereof are formed. Have been.
[0030]
Each protruding fixing column 342 has an insertion hole 343 formed on one side of an upper portion thereof. An engagement groove 351 is formed at the bottom of the outer tube 35 which is a cylindrical tube body, and an engagement hole 352 is formed at one side around the outside. A pair of hook plates 361 are formed inside the locking cover 36 which is a semicircular cover body and extend to the reverse hook inside the locking cover 36.
[0031]
This will be further described with reference to FIGS.
The seat unit 40 includes a seat body 41, a connecting member 42, an L-shaped frame 43, two footrest plates 44, and two support plates 45.
[0032]
The seat body 41 includes an inverted L-shaped seat plate 411 and an arcuate side flange 412 protruding on both sides. A plurality of insertion slots 413 are formed at equal intervals inside the arcuate side flanges 412 on the lower front side and both sides of the seat plate 411. A semi-arcuate receiving groove 414 is formed on each of the lower outer sides of the two arcuate side flanges 412, and each of the receiving grooves is provided with a pair of fixing plates 415, and a pin hole is formed at the center thereof. Is formed. The fixing plate 415 formed on the outside has four slots.
[0033]
A plurality of jagged engagement ribs 416 and four screw posts 417 are arranged below the seat plate 411, and an inverted U-shape defined by a protruding flange 418 is provided on the front side of the seat plate 411. A concave portion is formed, and an insertion slot 413 is formed at an end of the inverted U-shaped concave portion. An inclined notch 419 is formed at the rear end of the arcuate side flange 412.
[0034]
The connecting member 42 facing inward has an L-shaped sliding groove 421 disposed therein and an elongated fixing piece 422 protruding forward.
[0035]
The footrest plate 44 is provided with positioning pieces 441 on the rear side and the rear side of the side, and L-shaped hook means 442 protruding at the front of the opposite side 443. The L-shaped hook means 442 is provided with a pair of hook pieces 443 and a positioning key provided at the bottom of the hook pieces 443 below the hook pieces 443.
[0036]
A support plate 45 of a plate body having a wide bottom and a narrow top is provided with three elliptical through-holes at the bottom and a plurality of elongated positioning holes 451 arranged at equal intervals in the middle. Is formed.
[0037]
The front wheel bracket set 50 will be described with reference to FIG. 3A.
The front wheel bracket set 50 includes a rotating head 51, a locking bolt 52, an engagement block 53, a large spring 54, a small spring 55, a front wheel bracket 56, and a nut 57.
[0038]
The rotary head 51, which is a circular cover fitted inward, has a rotary knob plate 511 formed on the outside thereof, and a sleeve rod 512 having an insertion hole 513 formed at one end of the inside member. Is provided.
[0039]
A locking hole 521 is formed at one end of the locking bolt 52 so as to be perpendicular to the axial direction, and an outer thread 522 is formed at the other end.
[0040]
A slot 531 is formed in the center of the circular engagement block 53, and four engagement legs 532 protruding inward from its end are provided.
[0041]
The front wheel bracket 56 has a positioning groove 561 on the upper side thereof, four positioning grooves 561 surrounding the positioning groove 561, and a rotating wheel 563 rotatably connected to the bottom thereof. Are located.
[0042]
The rear wheel bracket set 60 will be described with reference to FIG. 3B.
The rear wheel bracket set 60 includes a rivet 61, a rear wheel bracket 62, a reinforcing plate 63, a connection plate 64, an elastic plate 65, a compression spring 66, a rotating wheel 67, and a plurality of ring washers 68.
[0043]
In the rear wheel bracket 62, a protruding hole 621 having a key hole is disposed inside one end thereof, and a disc rotating wheel 622 is disposed so as to be pivotally connected at the other end thereof, and a plurality of disc rotating wheels 622 are provided at a central portion inside thereof. A screw hole 623 is formed.
[0044]
A plurality of screw holes 631 are formed in the reinforcing plate 63, and a ring 632 provided with three engagement keys 633 arranged at equal intervals is formed at one end thereof.
The connection plate 64 has connection holes 641 formed at both ends thereof, and an adjacent block 642 is formed at one bottom of the connection hole 641. The extendable plate 65 is provided with turning holes 651 at both ends thereof.
[0045]
The rotary wheel 67 is provided with a two-stage through hole 671 at the center thereof, and a key groove 672 is formed on one side thereof. Three further recesses are arranged at equal intervals inside the key groove 672. The other end is provided with a shaft 674 with a key groove, and a key member 675 protrudes from the surface of the shaft 674 with a key groove.
[0046]
The base unit 70 will be described with reference to FIG. 3C.
The base unit 70 includes a base body 71, two locking blocks 72, two springs 73, a wheel turning seat 74, a reinforcing member 75, two reinforcing rods 76, two spring washers 77, and two keyways. Attached plate 79.
[0047]
The base main body 71 has an elongated turning hole 711 disposed on the front side thereof, a pair of keyed slots 712 disposed on both sides thereof, and a plurality of positioning flanges disposed at equal intervals on the bottom thereof. 713, a pair of hollow insertion columns 714 disposed on the left and right sides behind the 713, and four engagement ribs 715 formed on the surface of each hollow insertion column 714. ing.
[0048]
The locking block 72 has a two-stage rotary hole 721 formed in an upper portion thereof, and an engagement hole 722 is formed on the front surface of the smaller diameter of the two-stage rotary hole 721.
[0049]
In the wheel turning seat 74, two turning blocks 741 are disposed on the left and right sides thereof, four fixed infant seat columns 742 are disposed on the upper surface thereof, and an arcuate shell 743 extends upward on the rear side. A turning member 744 having a turning hole is disposed on each of the left and right sides of the arc-shaped shell portion 743, and a trapezoidal holding space 745 is formed at the front bottom thereof.
[0050]
In the trapezoidal holding space 745, an insertion portion 7451 is formed on the front inside, and four through holes 7452 are formed in the middle upper side. A pair of mounting plates 746 are arranged on both left and right sides of the trapezoidal holding space 745, and the mounting plates 746 have fixing holes.
[0051]
A pair of elongated bowed keyed plates 79 are mounted to the elongated bowed keyed coupler 747 and are located on the rear side of the wheel seat 74. At one end of the keyed connector 747, a keyed connector 7471 having a slot is disposed at the center thereof, and two locking grooves 7422 are disposed on the outer surface thereof. Two screw pillars 7473 extending vertically downward are formed on the upper surface of the connector 747 with a key groove, and a pinhole 7474 is formed on one side surface thereof.
[0052]
The reinforcing member 75 is composed of a large portion and a small portion, and four screw holes 751 are formed on the surface of the small portion. The reinforcing rod 76 is formed of a hollow pillar having a two-step structure. The adjusting block 78, which is an elongated block body, has a two-stage turning hinge 781 formed on one side thereof. The key grooved plate 79 has a key grooved hole 791 arranged on one side thereof, an arcuate flange 792 surrounding the other side, and a fixing means 793 on the bottom side. A pair of screw holes 794 are respectively provided on the surfaces of both the arcuate flange 792 and the fixing means 793, while a pin hole is formed on the other side of the key grooved hole 791.
[0053]
The mounting seat 80 will be described with reference to FIG. 3D.
The installation seat 80 includes an installation body 81, two pin blocks 82, two compression springs 83, a drawing member 84, two insertion bolts 85, two triangular fixing pieces 86, and a wing-like piece 87. The installation main body 81 is formed of a substantially triangular housing, and a sliding guideway 811 is formed on the upper front side thereof. Are formed with mounting pieces 814 having mounting holes 8141 on the left and right. The insertion piece 815 has a U-shaped escape groove 8151 formed on the left and right sides thereof, and is formed corresponding to the mounting piece 814. A pair of left and right rectangular insertion blocks 816 are disposed in the U-shaped escape groove 8151 on the left and right, and a connection hole 8161 is formed in each block 816 and is adjacent to the insertion piece 815. Hole 8161 corresponds to U-shaped relief groove 8151 and mounting hole 8141.
An engagement slot 8162 is formed on the upper side of each insertion block 816, and the lower side of the installation body 81 is defined by a U-shaped holding groove 817.
[0054]
The pin block 82, which is a two-stage structure means, has a pinhole 821 formed at the small diameter end. A pair of installation pillars 841 are arranged on the left and right sides of the drawer member 84, and a bow diameter drawer portion 842 is formed in an upper middle part thereof.
[0055]
The insertion bolt 85 having a structure having two steps is formed with an insertion hole 851 orthogonal to the axial direction at the front end of the small diameter portion. The triangular fixing piece 86 having a limited arcuate member at the middle has fixing holes 861 at three corners. The wing-shaped piece 87, which is a rectangular wing-shaped body having an intermediate arc-shaped portion, has fixing holes 871 formed at four corners thereof.
[0056]
Referring to FIG. 4, a method of assembling the infant seat structure for a bicycle according to the present invention will be described.
First, the locking member 31 is fitted into the lower end of the extendable inner tube 32, and is fixed via the fixing hole 321 and the insertion pin 90 passed through the pin hole 311. The upper and lower pipes 34 and 33 are overlapped and closed, and the engaging post 331 and the engaging post 342 are screwed together via the screw 91. The outer tube 35 is guided and sleeved to the outer peripheral edges of the upper and lower tubes 34,33. The extendable inner tube 32 is inserted into the protruding fixing column 342, and the engagement hole 352, the insertion hole 343, and the fixing hole 321 are respectively overlapped and fixed through the insertion pin. The locking covers 36 are fitted into both ends of the upper and lower tubes 34 and 33 in which the outer tubes 35 are fitted, and the outer tubes 35 are hooked via the hook plates 361 of the covers 36.
[0057]
Next, the sleeve body 23 is attached to the back side of the back body 21.
The fixing plate 24 is mounted on the upper part of the semicircular guide path 231, and the fixing plate 241 is positioned adjacent to the fixing plate 232. The sleeve body 23 is attached to the backrest body 21 by screwing the screw 91 through the fixing plate 241 and the fixing plate 232, and is screwed to the fixing pillar 211 arranged above the backrest body 21. Further, a screw is inserted through the screw hole 236 and is engaged with the fixing pillar 211 arranged at the lower part.
[0058]
The inner tube 32, which can expand and contract, is introduced through a space formed by the arcuate sliding groove 214 and the semicircular guide path 231. The friction block 25 is inserted into the elongated through hole 242 and pushed inside the elongated slot 234.
Then, the eccentric means 26 is positioned and stopped exactly adjacent to the friction block 25 via an insertion pin passing through a fixing portion 243 formed by cutting and raising the fixing member 24. When the locking pillar 215 having the large diameter head is guided and locked by using the oblique notch 419 and is positioned there via the connecting member 42, the sliding groove 421 disposed therein is locked by the locking pillar 215. And is engaged with the connecting member 42. The backrest body 21 can be adjusted by moving back and forth in the oblique notch 419 via the connecting member 42.
[0059]
The L-shaped frame 43 is applied to the back side of the backrest body 21 and the lower side of the seat body 41. The lower portion of the L-shaped frame 43 engages with a jagged engagement rib 416, the upper portion of which is positioned by a U-shaped engagement slot 237 adjacent the rear side of the back body 21.
The fixing block 22 is fitted and fixed to the insertion slot 413 via the screw 91, and the upper end of the L-shaped frame 43 is limited by the concave portion 222. The movement of the backrest member 21 is restricted by the L-shaped frame 43.
[0060]
The footrest plate 44 is inserted and supported into the insertion slot 413 having an appropriate height via the positioning piece 441. Next, it is connected to the positioning key 444 of the hook piece 443 of the footrest plate 44 through the positioning hole 451 of the support plate 45, and is positioned at an appropriate height.
The locking bolt 52 is inserted into the sleeve rod 512 of the rotating head 51, and is firmly fixed to the rotating head 51 through the pin 90 into the pin hole 513 and the fixing hole 521. Then, the engagement block 53 is inserted into the locking bolt 52 and housed inside the rotary head 51. The large spring 54 having the small spring 55 inserted therein is fitted in a sleeve shape around the peripheral edge of the sleeve rod 512. Further, the front wheel bracket 56 is positioned in the receiving groove 414 defined by the fixing plate 415. The locking bolt 52 having one end engaged with the rotary head 51 is passed through the fixing plate 415 and the positioning groove 561, and the fixing plate 415 is formed via an external screw 522 formed at the other end of the locking bolt 52. Is screwed to a nut 57 arranged on the other side of.
After inserting the four engaging legs 531 of the engaging block 53 into the four slots and the four positioning holes 562 of the fixing plate 415, the front wheel bracket 56 is fixed to the fixing plate 415.
[0061]
The locking block 72 is connected to the hollow insertion column 714 through the two-stage rotary hole 721, and the four engagement holes 722 are fitted into the four engagement ribs 715. A screw 91 around which a spring 73 is sleeved is passed through a two-stage rotary hole 721 and fastened to a hollow insertion column 715 so that the spring 73 comes into contact with the small-diameter step of the two-stage rotary hole 721. Via the hollow insertion post 714 as a pivot, the locking block 72 is now pivoted up and down. The reinforcing member 75 is screw-engaged with the four through holes 7452 in the trapezoidal holding chamber 745 through the horizontal screw holes 751. A spring washer 77 is positioned on the two-stage pivot hinge 781 of the adjustment block 78. A small diameter step of the two-step reinforcing rod 76 is placed over and covers the upper side of the pivot member 744. Thereafter, the adjustment block 78 is positioned below the pivoting member 744 and tightened with the screw 91 so as to be pivotally connected. Via the pivoting member 744, the adjustment block 78 pivots back and forth there.
The elongated round bar 92 is inserted into the elongated turning hole 711 and the turning blocks 741 arranged on both sides so that the base main body 71 is engaged with the wheel turning seat 74 on the front side thereof. In this way, when the base main body 71 is installed on the upper surface of the wheel turning seat 74, the base main body 71 is positioned and fixed to the left and right rear by connecting to the adjusting block 78 assembled as described above.
[0062]
Thereafter, the locking block 72 is rotated downward at the other end of the adjustment block 78 to position the adjustment block 78 in an appropriate position to prevent the adjustment block 78 from coming off during use. The wheel turning seat 74 in a state where the base body 71 is installed is screwed to the lower side of the seat body 41 to be engaged with the four fixing posts 742 and the four screw posts 417. The L-shaped frame 43 engages the positioning frame 713 at its bottom. After the keyed plate 79 is fitted into the keyed connector 713, bolts are fitted into the screw holes 794 and the screw columns 7473 for connection.
[0063]
The reinforcing plate 63 is fastened to the rear wheel bracket 62 with the screw 91. The compression spring 66 is fitted into the large diameter portion 671 of the two-stage through hole 671 and positioned there. The rivet 61 together with the ring washer 68 is guided through the keyed protrusion hole 621 and the two-stage through hole 671, and rivet-connected to the centrally located slot of the keyed joint 7471. Are pivotally engaged with the wheel pivot seat 74. The extensible plate 65, together with the ring washer 68, is pivotally connected at one end to a keyed connector 747 and a keyed plate 79 with an insertion pin 90. The connection plate 64 and the ring washer 68 are rotatably fixed at one end to the screw holes 631 of the reinforcing plate 63 by insertion pins 90. The connecting plate 64 is pivotally fixed to the elastic plate 65 at the other end together with the ring washer 68. With this configuration, the elastic plate 65 can extend a certain distance outward during use.
[0064]
The insertion bolt 85 is passed through the installation column 841, and the compression spring 83 is inserted between the installation member 814 and the insertion member 815. The small-diameter step of the two-stage pin block 82 is passed through the connection hole 8161. The drawer member 821 to which the insertion bolt 85 is attached is covered from the rear of the installation body 81, and the insertion bolt is passed through the installation hole 8141, passed through the compression spring 83, guided to the U-shaped relief groove 8151, and A sleeve is connected to the block 82. An insertion pin 90 is used to connect the insertion bolt 85 and the pin block 82 through the engagement slot 8162, thereby completing the assembly of the bicycle infant seat structure of the present invention.
[0065]
A method of using the infant seat structure for a bicycle will be described with reference to FIG.
In order to adjust the angle of the backrest body 21, as shown in FIG. 5, the locking block 72 is rotated upward, and the adjustment block 78 is rotated outward. If the adjustment block 78 is not adjacent, the base body 71 that is pivotally mounted to the pivot block 741 located at the front portion will be lowered to some extent at the rear side. Then, the L-shaped frame 43 is disengaged from the positioning flange 713 and can be easily adjusted back and forth on the jagged engagement rib. On the other hand, the backrest body 21 is adjusted to various angles by the movement of the L-shaped frame 43. When the backrest body 21 is adjusted to an appropriate angle, the base body 71 is lifted upward, and the adjustment block 78 and the locking block 72 are rotated rearward so that they are closely adjacent to the base body 71. become. When the L-shaped frame 43 is reinstalled and engaged with the positioning flange 713, the backrest body 21 is adjusted to an appropriate angle.
[0066]
Referring to FIG. 6, a method for assembling the bicycle infant seat structure of the present invention to the rear carrier A of the bicycle will be described.
The rib 812 of the installation main body 81 passes through the sliding guide path 811 of the wheel turning seat 74 and is engaged with the insertion member 7451. When the pull-out member 84 engaged with the installation main body 81 is pulled out, the insertion bolt 85 and the pin block 82 are pulled rearward, and the compression spring 83 is compressed. When the insertion bolt 85 and the pin block 82 are pulled rearward, the installation body 81 is lifted upward, adjacent to the lower side of the wheel turning seat 74, and housed in the trapezoidal holding chamber 745. . The mounting plate 746 of the wheel pivot seat 74 is threaded through the slot 8162 to engage the insertion block 816 therein. When the drawn out member 84 is released, the insertion bolt 85 and the pin block 82 are returned downward via the compression spring 83. The pin block 82 passed through the connection hole 8161 is positioned again by the insertion block 816, and the wheel turning seat 74 is fixed on the installation seat 80. Then, the installation seat 80 engaged with the wheel turning seat 74 is placed on the rear carrier A. A triangular member 86 and an airfoil panel 87 are applied from below the mounting body 81 to secure the mounting seat 80 on the rear carrier A of the bicycle, as shown in FIG.
[0067]
Referring to FIG. 7, another method of using the bicycle seat structure of the present invention will be described.
In order to use the infant seat structure of the bicycle of the present invention as a baby buggy, the rear wheel bracket 62 is pressed backward by an appropriate distance together with the rotating wheel 67. Then, the compression spring 66 is compressed exactly. When extended to the maximum, the rear wheel bracket 62 moves the rotating wheel 67 rearward via the compression spring 66. Then, the key member 675 arranged on the surface of the shaft 674 of the keyed groove engages with the locking groove 7422 arranged on the lower surface of the keyed connector 7471, and the rear wheel bracket 62 is repositioned in place. Once positioned, the swivel wheel 522 is grounded for baby buggy use. The keyed projection hole 621 is fixedly engaged with the keyed groove 672 to prevent the rear wheel bracket 62 from coming off during pushing while actually being used as a baby buggy.
[0068]
When the rotary head 51 is rotated outward through the locking bolt 52, the compressed large and small springs 54 cause the engagement block 53 to be held inside and adjacent to the engagement block 53, thereby sliding outward. become. Then, the four engagement legs 532 are disengaged from the four positioning holes 562 of the front wheel bracket 56, and the front wheel bracket 56 is bent downward, so that the rotating wheel 563 attached thereto comes into contact with the ground. . The rotating head 51 is turned backward and returned to the first first position, and the front wheel bracket 56 is repositioned via the engagement leg 532 so as to be engaged with the four positioning holes 562.
[0069]
When the eccentric means 26, which is adjacent to the friction block 25 on one side, is turned through an angle, the friction block 25 is released and a gap is created between them. Then, the upper and lower tubes 34 and 33 are pulled downward, and the elastic inner tube 32 is pulled up and adjusted to an appropriate height. The locking member 31 prevents the elastic inner tube 32 from sliding off the sleeve main body 23. Thereafter, when the eccentric means 26 is turned rearward to be slightly adjacent to the friction block 25, as shown in FIG. 7, the adjusted elastic inner tube 32 is held in place with respect to the use state. Become.
[0070]
FIG. 8 illustrates the use of the bicycle infant seat structure of the present invention in a normal infant chair.
First, both rear wheel brackets 62 are lowered. The support plate 45 is adjusted to an appropriate height at the hook piece 443 and is firmly positioned through the elongated positioning hole 451 so as to be engaged with the positioning key 444. The front wheel bracket 56 is turned inward and accommodated. The step 44 is disengaged from the engaged insertion slot 413 and is repositioned to the appropriate position of the insertion slot so that the height of the footrest can be adjusted according to the use condition.
[0071]
【The invention's effect】
According to the infant seat structure for a bicycle configured as described above, the mounting seat is fixed to the bed at the rear of the bicycle via the triangular fixing pieces and the wing-like pieces to provide an infant seat structure, or the front wheel By rotating the bracket and the rear wheel bracket downward to touch the ground and pulling up the telescopic handle set to a suitable height for use, it becomes a baby buggy, or alternatively, the rear wheel bracket is lowered. The front wheel bracket is stored in the receiving groove of the seat body, and the support plate is adjusted to an appropriate height at the L-shaped hook means of the seat body, so that the front wheel bracket is grounded on the floor. By positioning the positioning key in a positioning hole of an appropriate height, it can be used for various different purposes such as a normal baby chair. It is possible to easily adjust, multifunctional use can, efficiency and practicality are excellent.
[0072]
The angle of the backrest body can be adjusted, and the backrest body can respond to a user's demand for comfortable sitting.
[0073]
Since the footrest is detachably installed, it can be changed according to the height when different users sit.
[Brief description of the drawings]
FIG. 1 is a perspective view of a conventional bicycle infant seat structure.
FIG. 2 is a cutaway perspective view of a backrest unit of the bicycle infant seat structure of the present invention.
FIG. 3 is a partial cutaway view of the bicycle infant seat structure of the present invention.
FIG. 3A is an enlarged cutaway view of a seat unit and a front wheel bracket of the bicycle infant seat structure of the present invention.
FIG. 3B is an enlarged cutaway view of a seat unit and a rear wheel bracket of the bicycle infant seat structure of the present invention.
FIG. 3C is an enlarged cutaway view of the base unit of the infant seat structure for a bicycle according to the present invention.
FIG. 3D is an enlarged cutaway view of the installation seat of the bicycle infant seat structure of the present invention.
FIG. 4 is an assembled perspective view of a bicycle infant seat structure of the present invention.
FIG. 5 is a view showing the angle adjustment of the backrest unit of the bicycle infant seat structure of the present invention.
FIG. 5A is a partially enlarged view showing rotation and an adjustment block of a locking block of the infant seat structure for a bicycle according to the present invention.
FIG. 6 is a view showing a state in which the infant seat structure of the bicycle of the present invention is installed on a rear carrier of the bicycle and actually used.
FIG. 7 is a diagram showing a usage state in which the infant seat structure of the bicycle of the present invention is changed to a baby buggy.
FIG. 8 is a view showing a usage state in which the infant seat structure of the bicycle of the present invention is changed to a normal infant chair.
[Explanation of symbols]
20 Backrest unit
21 Backrest body
22 Fixing block
23 Sleeve body
24 Fixing members
25 Friction block
26 Eccentric means
30 Extendable handle set
31 Locking member
32 Telescopic inner tube
33 lower tube
34 Upper tube
35 Outer tube
36 Locking cover
40 seat unit
41 Seat body
42 Connecting member
43 L-shaped frame
44 2 footrests
45 two support plates
50 Front wheel bracket set
51 rotating head
52 Locking bolt
53 Engagement block
54 Big Spring
55 Kobane
56 Front wheel bracket
57 nuts
60 Rear wheel bracket set
61 rivets
62 Rear wheel bracket
63 Strengthening plate
64 connecting plate
65 elastic plate
66 compression spring
67 rotating wheel
68 multiple ring washers
70 Base unit
71 Base body
72 Lock Block
63 spring
74 wheel swivel seat
75 Strengthening piece
76 Strengthening rod
79 Keyway Plate
80 Installation seat
81 Installation body
82 pin block
83 compression spring
84 Drawer member
85 Insertion bolt
86 Triangle stick
87 pterygium

Claims (15)

Backrest unit, telescopic handle set, seat unit, two front wheel bracket sets, two rear wheel bracket sets, base unit, mounting seat, multiple insertion pins, and multiple screws And a bicycle infant seat structure comprising an elongated round bar, wherein the infant seat structure is:
The backrest unit 20 includes a backrest body 21, a U-shaped sleeve body 23 fixed to a back surface of the backrest body via a fixing block 22 via a fixing member 24, and a semicircular shape formed on the sleeve body 23. The guide unit 231 includes a friction block 25 for holding the handle set 30 in an extendable state by moving the handle set 30 in a vertical direction, and eccentric means 26,
The extendable handle set 30 includes a pair of vertically movable inner tubes 32 each having a locking member 31 attached to a lower end thereof, and a half-tubular lower tube 33 for fixing an upper end of the inner tubes 32. An upper tube 34 is connected to the lower tube 33 so as to cover the opening of the lower tube 33 from above. Is provided with a locking cover 36,
The seat unit 40 includes a connecting member 42 that connects the seat body 41 and the backrest body 21, a horizontal end portion locked on the back side of the seat body 41, and a vertical other end portion on the back side of the backrest body 21. An L-shaped frame 43 disposed so as to be positioned, a pair of footrests 44 detachably mounted below the front side of the seat body 41, and a pair of supports connected to the pair of footrests 44; And a plate 45,
The connecting member 42 is an elongated box-like body, in which an L-shaped sliding groove 421 disposed therein and an elongated fixing piece 422 protruding forward are formed.
The front wheel bracket set 50 is rotatably connected to a rotary head 51 mounted below the side plate of the seat body, a locking bolt 52, an engagement block 53, a large spring 54, and a small spring 55. A front wheel bracket 56 provided with a rotating wheel 563 and a nut,
The rear wheel bracket set 60 includes a rivet 61, a rear wheel bracket 62, a reinforcing plate 63, a connecting plate 64, an elastic plate 65, a compression spring 66, a rotating wheel 67, and a plurality of ring washers 68. And is pivotably connected to the wheel pivot seat 74 disposed on the back side of the seat body 41 by the rivet 61,
The base unit 70 includes a base body 71, two locking blocks 72, two springs 73, a wheel turning seat 74, a reinforcing piece 75, two reinforcing rods 76, and two spring washers. 77 and two key groove plates 79,
The installation seat 80 includes an installation main body 81 which is a trapezoidal housing, two pin blocks 82, two compression springs 83, a drawer member 84, two insertion bolts 85, and two triangular fixing pieces. 86, and a wing-shaped piece 87,
The elongated round bar is passed through an elongated turning hole of the base body 71 and two turning blocks of the wheel turning seat 74, and the base body 71 is engaged with the wheel turning seat 74 on the front side thereof, A base body 71 is mounted on the upper surface of the wheel turning seat, behind and adjacent to the adjusting block, and the locking block is rotated downward at the other end of the adjusting block to adjust the locking block. Position the block in the proper position to prevent the base body from coming off during use,
The mounting seat is fixed to the rear carrier of the bicycle through the triangular fixing pieces and the wings to form a child seat structure, or the front wheel bracket and the rear wheel bracket are rotated downward to contact the ground. By pulling up the extendable handle set to a height suitable for use, it can be turned into a baby buggy, or alternatively, the rear wheel bracket can be turned downward to ground on the floor, and the front wheel bracket can be attached to the seat body. Stored in the receiving groove, adjusting the support plate to an appropriate height at the L-shaped hook means of the seat body, grounding the floor, and positioning the positioning key in the positioning hole of the appropriate height. It can be easily adjusted to various different uses such as a normal baby chair. Infant seat structure of the bicycle. The two extendable inner tubes are slidable in a space defined by a semicircular guideway of the sleeve body and an arcuate sliding groove arranged on the back side of the backrest body. An infant seat structure for a bicycle according to claim 1. 2. The eccentric means adjacent to the friction block on one side and attached to the semi-circular fixing portion of the fixing member at the top and bottom is adapted to be able to rotate back and forth. Bicycle infant seat structure. 2. The L-shaped frame of claim 1, wherein the L-shaped frame can be moved back and forth on the jagged engagement ribs of the seat body for repositioning to adjust the angle of the back body in use. Bicycle infant seat structure. The infant seat structure for a bicycle according to claim 1, wherein the base body is rotatable up and down through two turning blocks of the wheel turning seat. The infant seat structure for a bicycle according to claim 1, wherein the locking block is rotatable up and down through a hollow insertion pillar of the base body. The bicycle child seat structure according to claim 1, wherein the adjustment block is capable of turning back and forth through a turning member of the turning seat. 2. The bicycle seat structure according to claim 1, wherein the footrests engaged with the insertion slots of the seat body can be disengaged and adjusted to an appropriate height before repositioning. . The support plate is adapted to be adjusted to an appropriate height at the hook piece of the footrest plate, and re-adjusted through a positioning key of an L-shaped hook means engaged with a positioning hole of an appropriate height. The bicycle seat structure according to claim 1, wherein the bicycle is positioned. The infant seat structure for a bicycle, wherein the rotating head is rotatable at one end thereof via a locking bolt fixed to a fixing plate of the seat body. The infant seat structure for a bicycle, wherein the engagement block held inside the rotary head can slide back and forth when pressed by the large and small compression springs. The infant seat structure for a bicycle, wherein the front wheel bracket is rotated up and down in the semi-arcuate receiving groove defined by the fixing plate of the seat body. The infant seat structure for a bicycle according to claim 1, wherein the rear wheel bracket with the rotating wheel is turned up and down at a wheel turning seat via the keyed connection tool. A seat structure for an infant of a bicycle, wherein the installation seat is moved up and down so as to be able to engage with and disengage from a wheel turning seat. A seat structure for a bicycle infant, wherein the drawer member can be loosened by pulling the drawer member forward and backward behind the installation body.

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