TWI409187B - The combination of baby carriages and baby carriages and car seats - Google Patents

Abstract

An assembly for vehicle rack of baby carriage and automobile seat is disclosed. The vehicle rack comprises two push rods, two seat rods, a multi-stage shank rest component extended between two seat rods and a locking device disposed between the seat rod and the multi-stage shank rest component. The multi-stage shank rest component comprises two side rod sections and a middle rod section pivoted between the two side rod sections. A first pivot member and a second pivot member of the locking device are respectively connected to a side rod section of a shank rest component and the seat rod to regulate and fasten the angles between the shank rest component and the seat rod. The locking device comprises an angle limiting mechanism and an actuating member incorporated with the angle limiting mechanism. The shank rest component can be regulated and fastened at a plurality of angle positions by operating the actuating member. When the shank rest component is regulated at one of angle positions, the automobile seat can be assembled to the baby carriage through the wedge portion of the automobile seat wedged to the shank rest component.

Description

Combination of stroller and stroller and car seat

The present invention relates to a stroller, and more particularly to a reclining umbrella model stroller in which the leg position is adjustable and a car seat can be assembled.

A number of strollers currently available on the market include a design that can be adjusted with a legrest member or a pedal member. A design in which a pedal member can pivot about an extension of two side arm members is disclosed in, for example, U.S. Patent No. 5,833,261. By pivoting the pedal members to different angular positions, different stroller usage patterns may be provided, for example, for the baby to recline or lie flat. On the other hand, the design of the structure combined with the car seat is also common in baby strollers currently on the market, but is limited to a large size (Full Size) stroller.

Generally, the structural appeal of the umbrella is light and can be combined into an umbrella-shaped slender body, so that it is not easy to assemble the car seat from the frame body and often use an additional accessory to assemble the car seat. Also, U.S. Patent No. 4,173,355 discloses a lower legrest member for use in a stroller which is comprised of a pair of seatposts and a member and a plurality of diagonal members connected therebetween, as a stroller. When folded, the diagonal members of the lower leg members can be gathered toward the center member to reduce the twist. However, the leg members can be folded but cannot be used for other purposes.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a stroller that provides a different use for infants to sit, lie flat, and integrate with a car seat by adjusting the angle of inclination of the lower leg members.

The stroller of the present invention is adapted to be coupled with a car seat having a click portion on the bottom side thereof. The two sides of the frame of the stroller include a front foot bar, a push rod connected to the upper end of the front bar, and a rear foot bar. a seat post extending between the front and rear foot bars, a lower leg rest member pivotally coupled between the seat bars on both sides of the frame, and a locking device for locking the relative angular position of the lower leg rest member and the seat post When the lower leg rest member is adjusted to an erect state, the car seat can be coupled to the frame by engaging with the snap portion of the car seat.

In the above embodiment, the two sides of the car seat integrally have a lip portion that is concave downwardly, and the lip portion can be engaged with the push rods on both sides of the stroller frame to fix both sides of the car seat.

An improvement of the present invention is that the leg supporting member comprises two side rod segments and an intermediate rod portion pivotally connected between the two side rod segments, each side rod portion being a straight angle rod, and the longitudinal section end of the right angle rod It is connected to the seat post by a locking device. The locking device includes an angle defining mechanism and an actuating member cooperating with the angle defining mechanism. By operating the actuating member, the leg supporting member can be coupled to the angular position of the standing chair with respect to the seat bar, The downward tilting position and the flattened angular position are adjusted and fixed.

In an embodiment of the invention, the angle defining mechanism has a first pivoting member coupled to one of the seatpost and the lower legrest member, and a second coupled to the seatpost and the lower legrest member a pivoting member, and a positioning member disposed between the first pivoting member and the second pivoting member, the first pivoting member is pivotally connected to the second pivoting member, and the positioning member is Locking the first pivoting member and the second pivoting member under the bias of a spring member to provide the above-mentioned specific use position of the lower leg member, and applying the force to the spring member to operate the spring member The position is unlocked.

The improvement effect of the present invention is that an umbrella type stroller frame can be adjusted and fixed between the plurality of angular positions relative to the seat post by a locking device disposed between the lower legrest member and the seat post. In order to provide a plurality of different angle use positions including a car seat assembly position. In addition, since the lower leg rest member is in a plurality of pivotal configurations, when the stroller is folded, the pivotal sections of the lower leg rest member can be relatively pivoted to reduce the width after folding.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. The technical means and functions of the present invention for achieving the intended purpose can be more deeply and specifically understood by the description of the specific embodiments. However, the drawings are only for the purpose of reference and description, and are not intended to limit the invention. .

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

1 to 4, which is a preferred embodiment of the stroller of the present invention, the stroller 1 includes a frame 10, and the frame 10 generally includes two front foot bars 112, two rear foot bars 122, and two push rods 132. The two-seat bar 5 is a scissor-shaped cross bar 14 between the front leg 112 and the rear leg 122 on both sides, a pair of front wheels 15 and a pair of rear wheels 16.

Referring to Figures 1 and 4, the stroller 1 of the present invention can be used in conjunction with a car seat 9. In the embodiment, the stroller 1 is a reclining umbrella model stroller, and the car seat 9 includes a seat body 91 for the baby to ride inside. The bottom surface of the seat body 91 is provided with a central ridge wall 92 extending longitudinally and two side ridge walls 93 located at both sides of the central ridge wall 92. The central ridge wall 92 is provided with a convex hook 921 for the shank leg supporting member 2, and each of the side ridge walls 93 is formed with a concave portion 931 corresponding to the convex hook 921, and the function thereof will be described later.

As shown in FIG. 2, there is a foot pedal 111 between the two front legs 112. The two front wheels 15 are respectively disposed at the bottom ends of the two front legs 112. The two rear wheels 16 are respectively disposed at the bottom ends of the two rear foot bars 122. The bottom ends of the two push rods 132 are respectively connected to the two front foot rods 112, and the top ends of the rear foot rods 122 are respectively pivotally connected to a pivoting bracket 1320 on the two front foot rods 112. The upper end of a scissor crossbar 14 is pivotally connected to the second rear leg 122, and the lower end is pivotally connected to the push rod 132 to make the stroller 1 easy to fold.

As shown in FIG. 2, the lower leg member 2 is rotatably disposed between the front ends of the two seat bars 5. In the present embodiment, the lower leg members 2 include two side bar segments 21 and are pivotally connected to the two side bar segments 21. An intermediate rod segment 22. The two locking devices 3 are respectively disposed between the longitudinal sections of the two side rail segments 21 of the lower legrest member 2 and the corresponding adjacent seatposts 5 to adjust and fix the angle between the lower legrest members 2 and the seatpost 5. As shown in FIG. 10, the two side rod segments 21 of the lower legrest member 2 are respectively right angled rods, and the transverse section of the right angled rod has a pivoting seat 210 including two receiving portions 211, and the middle leg of the lower leg supporting member 2 Each of the ends of the segment 22 has a pivoting ear formation 220. The pivoting lug structure 220 in this embodiment is a two-parting plate embedded in the two receiving portions 211 of the pivoting base 210. The pivoting shaft (not shown) extends through the pivoting seat 210 and the pivoting ear structure. 220, the intermediate rod segment 22 is rotatable about the pivot socket 210.

As shown in Figures 7 and 8, each locking device 3 includes an angle defining mechanism 30, an actuating member 35 that cooperates with the angle defining mechanism 30. By operating the actuating member 35, the lower leg member 2 (Fig. 3) can be positioned relative to the seat post 5 at a first angular position of Figs. 3, 4, a second angular position of Fig. 5, and a third of Fig. 6 The angular position is selectively adjusted and fixed depending on the usage type of the stroller 1.

As shown in FIG. 7 and 8, in the embodiment, the angle defining mechanism 30 has a first pivoting member 31, a second pivoting member 32 pivotally connected to the first pivoting member 31, and a first pivoting member 32. Positioning between the pivoting member 31 and the second pivoting member 32 to lock the first pivoting member 31 and the second pivoting member 32 to a first locking position, a second locking position or a third locking position The member 33, and a constant positioning member 33 are biased to maintain the locked spring member 34. The actuating member 35 is operatively mounted on one side of the axial direction of the angle defining mechanism 30 and abuts against the positioning member 33. The actuating member 35 applies an axial force to the spring member 34 through the positioning member 33 to unlock the positioning member 33.

As shown in FIG. 7, the first pivoting member 31 includes a first circular housing 310 having a pivot 311 extending toward the inner side of the first pivoting member 31 and four equidistantly distributed along the inner surface of the surrounding wall. The first bump 312 defines a first engaging groove 3120 between the two adjacent first bumps 312.

The outer wall of the first circular housing 310 has an integrally formed first sleeve housing 314, and one side of the leg portion 21 of the lower leg member 2 (such as FIG. 3) is connected to one end of the connecting tube 21a, and the connecting tube 21a The other end is secured within the first sleeve housing 314.

As shown in FIG. 8, the second pivoting member 32 includes a second circular housing 320 having four second projections 322 equally spaced along the inner surface of the surrounding wall and two adjacent second projections. A second engagement slot 3220 is defined between 322. The outer wall of the second circular housing 320 has an integrally formed second sleeve housing 324 in the radial direction, and the front end of the seat post 5 is fixed in the second sleeve housing 324.

As shown in FIG. 7 to FIG. 9 , the positioning member 33 is disposed between the first pivoting member 31 and the second pivoting member 32. The positioning member 33 is a gear having four spaced apart protruding teeth 330 and a through hole 333. The protruding portion 330 of the positioning member 33 is inserted into the first engaging groove 3120 of the first pivoting member 31 and the second engaging groove 3220 of the second pivoting member 32. The relative rotation of the first pivoting member 31 and the second pivoting member 32 can be prevented.

A spring element 34 is disposed between the second pivoting member 32 and the positioning member 33. The spring member 34 constantly biases the positioning member 33 toward the first pivoting member 31 to maintain the second pivoting member 32 and the first pivoting member. Lock between pieces 31.

As shown in FIG. 8, the convex tooth 330 of the positioning member 33 is an inclined surface 330a on the side adjacent to the first pivoting member 31, and the actuator 35 is not required to be operated when the lower leg supporting member 2 (such as FIG. 2) is to be adjusted upward. The lower leg supporting member 2 is directly pulled upward, and the locking between the first pivoting member 31 and the second pivoting member 32 is released by the axial displacement of the positioning member 33 by the inclined surface 330a. In detail, when the lower legrest member 2 is turned, the inclined surface 330a of the positioning member 33 can slide over the first projection 312 of the first circular housing 310 adjacent thereto while compressing the spring member 34 to generate a The axial displacement of the second circular housing 320 is released, and the locking between the first pivoting member 31 and the second pivoting member 32 is released, so that the lower legrest member 2 can be turned in a single direction (ie, the upward direction) ) is rotated directly without being unlocked by pressing the actuating member 35. In addition, a stop structure (not shown) may be disposed between the inner side of the first circular housing and the positioning member 33 such that the direct translation is limited to a specific angular range.

The angle limiting mechanism 30 in this embodiment can provide three angle selection positions, that is, an upright position or a first angle position as shown in FIG. 3, at which time the stroller 1 can be used to assemble a car seat 9; As shown in FIG. 6, the downwardly inclined position, that is, the second angular position, the child's feet can be placed on the calf support member 2 when riding, and the flat position, that is, the third angular position, as shown in FIG. It can be adjusted with the backrest of the stroller (not shown) so that the stroller 1 is used in a cradle-type baby mode.

Preferably, as shown in FIG. 7 and FIG. 8 , in the embodiment, the first pivoting member 31 and the second pivoting member 32 are respectively in the first and second circular housings 310 and 320 and the first and second sleeves. Between the housings 314, 324, there are a first limiting rib 315 and a second limiting rib 325 in the shape of a web. The first limiting rib 315 can abut the peripheral wall of the second sleeve shell 324 of the second pivoting member 32 at the first angular position to prevent the lower leg supporting member 2 from pivoting upward; the second limiting rib 325 is The second angular position abuts the peripheral wall of the first sleeve housing 314 of the first pivoting member 31 to prevent the lower leg member 2 from pivoting excessively downward.

As shown in FIG. 7 , the actuating member 35 has three protrusions 351 , and the protrusions 351 of the actuating member 35 pass through the first pivoting member 31 and abut against the positioning member 33 . When the actuating member 35 is pressed, each of the protrusions 351 can push the positioning member 33 away from the first pivoting member 31 and move toward the second pivoting member 32 to release the locking of the positioning member 33 and the first pivoting member 31. Therefore, the first pivoting member 31 and the second pivoting member 32 are relatively rotatable.

Referring to Figures 1 and 4, when the stroller 1 of the present invention is coupled to a car seat 9, the actuating member 35 (Fig. 7) is operable to adjust and secure the lower leg member 2 to the first angular position. At this time, the snap portion or the upwardly convex hook 921 of the car seat 9 can be engaged with the lower leg member 2, and at the same time, the lower leg member 2 partially protrudes into the two recessed portions 931 of the car seat 9 to provide support. On the other hand, the downwardly concave curved lip portion 941 integrally formed on both sides of the seat body 91 can be engaged with the side push rods 132, so that the car seat 9 is stabilized on the stroller 1 with three support positions. The ground group is connected to the stroller 1. In addition, as shown in FIG. 1 , the fixed webbing 100 is disposed on the push rods 132 on the side of the stroller 1 , and the plastic sheet on the webbing can be snapped into the lip of the car seat 9 to open the seam, and the car seat 9 can be It is restrained in place on the frame 10 to enhance the fixing effect.

When the car seat 9 is to be separated from the stroller 1, the fixed webbing 100 is first removed, and then the rear end of the car seat 9 is lifted off the lower leg member 2, and the lip portions of the seat body 91 are both sides. The 941 can be simultaneously disengaged from the push rod 132 to remove the car seat 9 from above the stroller 1. After the car seat 9 is removed, the actuating member 35 can be operated to adjust the legrest member 2 from the first angular position to the second angular position and fixed to the second angular position, at which time the lower leg member 2 can be Reverting to the normally used state; or using the stroller in the form of a bassinet by adjusting the legrest member 2 from the first angular position and fixing it to the third angular position.

In addition, as shown in FIG. 10 and FIG. 11, in order to cooperate with the umbrella folding structure of the stroller 1, the two side rod segments 21 of the lower legrest member 2 can pivot inwardly relative to the intermediate rod section 22, so that the stroller 1 is closed. The two side rail segments 21 of the hourly lower leg rest member 2 are pivotable relative to the intermediate rail portion 22 to a right angle position to reduce the folding width. In order to prevent the side rod segments 21 from pivoting in the opposite (outward) direction with respect to the intermediate rod segments 22, the two receiving portions 211 of the two side rod segments 21 have limit projections 211a at appropriate positions for abutting the intermediate rod segments 22 The outer side prevents the side bar section 21 from pivoting outward.

In summary, the legrest member 2 can be adjusted relative to the seat post 5 between the first angular position, the second angular position and the third angular position by the cooperation of the plurality of pivotal structures of the lower legrest member 2 and the locking device 3. And fixed. When the lower leg member 2 is in the first angular position, the hook 921 of the car seat 9 is engaged with the lower leg member 2, and the two side lip portions 941 are obliquely engaged with the push rod 132, that is, The car seat 9 is firmly assembled to a stroller 1, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

1. . . Baby carriage

10. . . Frame

100. . . Fixed webbing

111. . . Pedal

112. . . Front foot

122. . . Rear foot

132. . . Putt

1320. . . Pivot bracket

14. . . Scissor cross bar

15. . . Front wheel

16. . . rear wheel

2. . . Calf component

twenty one. . . Side pole

21a. . . Coupling tube

210. . . Pivot socket

211. . . Capacitor

211a. . . Limit bump

twenty two. . . Middle pole

220. . . Pivot ear structure

3. . . Locking device

30. . . Angle limiting mechanism

31. . . First pivoting member

310. . . First circular housing

311. . . Pivot

312. . . First bump

3120. . . First engagement slot

314. . . First sleeve housing

315. . . First limit rib

32. . . Second pivoting member

320. . . Second circular housing

322. . . Second bump

3220. . . Second engagement slot

324. . . Second sleeve housing

325. . . Second limit rib

33. . . Positioning member

330. . . Convex tooth

330a. . . Inclined surface

333. . . perforation

34. . . Spring element

35. . . Actuator

351. . . Tab

5. . . Seatpost

9. . . car seat

91. . . Seat body

92. . . Central ridge wall

921. . . Hook

93. . . Side ridge wall

931. . . Depression

941. . . Lip part

1 is a perspective view showing a preferred embodiment of the stroller of the present invention, and a legrest member is adjusted to be assembled with a car seat when in a first angular position;

Figure 2 is a perspective view similar to Figure 1, but not assembled with a car seat;

Figure 3 is a side elevational view of the embodiment of Figure 2;

Figure 4 is a side elevational view of the embodiment of Figure 2 assembled with a car seat;

Figure 5 is a view similar to Figure 3, but the lower leg rest member state illustrates the lower leg rest member in a second angular position;

Figure 6 is a view similar to Figure 3 illustrating the lower legrest member in a third angular position;

Figure 7 is an exploded view showing a preferred embodiment of the locking device for the stroller of the present invention;

Figure 8 is another exploded perspective view similar to Figure 7;

Figure 9 is a cross-sectional view showing the locking device of the stroller of the present invention;

Figure 10 is an exploded view of the lower legrest member of the stroller of the present invention; and

Figure 11 is a perspective view of the stroller of the present invention after it has been folded.

1. . . Baby carriage

10. . . Frame

100. . . Fixed webbing

111. . . Pedal

112. . . Front foot

122. . . Rear foot

132. . . Putt

1320. . . Pivot bracket

14. . . Scissor cross bar

15. . . Front wheel

16. . . rear wheel

twenty one. . . Side pole

twenty two. . . Middle pole

3. . . Locking device

30. . . Angle limiting mechanism

314. . . First sleeve housing

324. . . Second sleeve housing

5. . . Seatpost

9. . . car seat

91. . . Seat body

92. . . Central ridge wall

921. . . Hook

93. . . Side ridge wall

931. . . Depression

941. . . Lip part

Claims (26)

A baby carriage, which is a laterally collapsible umbrella model baby carriage, is suitable for assembling a car seat, the baby carriage comprises a frame, and the two sides of the frame respectively comprise a front foot bar, a rear foot bar and a a seat post extending between the front and rear foot bars, the stroller comprising: a calf rest member pivotally disposed between the seat bars on both sides of the frame, the calf support member including the two side segments An intermediate rod section pivotally connected between the two side rod segments; and a locking device disposed between at least one of the side rod segments of the lower legrest member and the seat post to adjust and fix the lower legrest member and An angle between the seat post, the locking device includes an angle defining mechanism and an actuating member cooperating with the angle defining mechanism, the leg supporting member being movable relative to the seat post by operating the actuating member The plurality of angular positions including the position of the erected car seat are adjusted and fixed. The stroller of claim 1, wherein the angle defining mechanism further has a spring member that is constantly biased toward the retaining member to maintain a lock, the actuating member being operatively mounted to the angle defining mechanism On one side of the axial direction, the positioning member is unlocked by the actuating member biasing the spring member. The stroller of claim 2, wherein the two side rail segments of the lower leg rest member are straight-angled rods, and one end of the longitudinal section of the right-angled rod is fixedly coupled to the seat post. The stroller of claim 2, wherein the plurality of angular positions of the lower leg rest member relative to the seat post further comprise a vertical angle position A flat angular position. The stroller of claim 2, wherein the angle defining mechanism has a first pivoting member coupled to the lower legrest member, a second pivoting member coupled to the seatpost, and a setting a positioning member between the first pivoting member and the second pivoting member, the positioning member locking the first pivoting member and the second pivoting member in one of the plurality of angular positions. The stroller of claim 5, wherein the first pivoting member comprises a first circular housing and a first fixing sleeve extending from a peripheral wall of the first circular housing. One end of the side rod segment is connected to the first fixing sleeve, and the second pivoting member includes a second circular housing and a second sleeve extending from a peripheral wall of the second circular housing. One end of the seat post is fixed in the second fixing sleeve. The stroller of claim 6, wherein the locking device further comprises a connecting tube sleeved in the first fixing sleeve and connected to the side rod segment. The stroller of claim 6, wherein the first circular housing has a pivot extending toward the second circular housing, the positioning member is movably sleeved on the pivot, And the spring element is axially disposed between the positioning member and the second circular housing, the actuating member is in contact with the positioning member, and the positioning member is pushed by the actuating member The second circular housing is inserted to permit pivoting of the first circular housing relative to the second circular housing. The stroller of claim 8, wherein the actuating member has a plurality of protrusions that pass through the first pivoting member and abut against the positioning member, so as to push the positioning member by the protruding post. Move it away from the first pivotal member move. The stroller of claim 5, wherein the inner sides of the first and second pivoting members form spaced apart lugs and define an engaging groove between adjacent ones, the positioning member is a gear having a plurality of spaced apart teeth, wherein the protruding teeth are engaged with the engaging grooves to lock the first pivoting member and the second pivoting member. The stroller of claim 10, wherein the convex teeth have a slope adjacent to a side of the first pivoting member, and when the lower leg retaining member pivots upward relative to the seatpost, The protrusion around the inner side of the first pivoting member abuts the slope of the positioning member, so that the positioning member is axially pushed toward the second pivoting member. The stroller of claim 10, wherein the first pivoting member and the second pivoting member respectively have a first limiting rib and a second limiting rib, the first limiting rib being The second pivoting member is abutted at a first angular position, and the second limiting rib abuts the first pivoting member at a second angular position. A combination of a baby carriage and a car seat, comprising: the baby carriage comprises a frame, the two sides of the frame respectively comprise a front foot bar, a push rod connected to the upper end of the front foot bar, a rear foot bar, and an extension a seat post between the front and rear foot bars, a lower leg rest member and a locking device; the leg rest members are pivotally disposed between the seat bars on both sides of the frame, the leg support members including the side legs And an intermediate rod segment pivotally connected between the two side rod segments; the locking device is disposed between at least one of the side rod segments of the lower legrest member and the seat post to adjust and fix the leg support member and the An angle between the seatposts, the locking device includes an angle defining mechanism and an angle Actuating member that cooperates with the mechanism, by operating the actuating member, the leg member can be adjusted and fixed relative to the seat post between a plurality of angular positions including the position of the upright car seat; and The car seat includes a one-piece housing integrally formed with a downwardly curved lip portion, and the bottom portion includes a latch portion, and the lip portion and the latch portion are respectively associated with the push rod and the push rod The lower leg is snapped by the member. A combination of a stroller and a car seat according to claim 13 wherein the frame of the stroller includes a pair of push rods, each side of the car seat including a lip portion, respectively When the car seat is fixed to the stroller frame, the lip portions are engaged with the pair of push rods. A combination of a stroller and a car seat according to claim 13 wherein the angle defining mechanism further has a spring member that is constantly biased toward the retaining member to maintain a lock, the actuating member acting cooperatively Mounted on one side of the axial direction of the angle defining mechanism, the actuating member biases the spring element to unlock the positioning member. The combination of a stroller and a car seat according to claim 15 wherein each side leg of the leg rest member is a right angle bar to which one end of the longitudinal section of the right angle bar is fixed. A combination of a stroller and a car seat according to claim 15 wherein the plurality of positions of the lower leg rest member relative to the seat post further comprise a vertical angle position and a flat angular position. The combination of a stroller and a car seat according to claim 15 wherein the angle defining mechanism has a first pivoting member coupled to the lower legrest member and a second pivot coupled to the seatpost Connector, and one set in a positioning member between the first pivoting member and the second pivoting member, the positioning member locking the first pivoting member and the second pivoting member in one of the plurality of angular positions. The combination of a stroller and a car seat according to claim 18, wherein the first pivoting member comprises a first circular housing and a first extending from a peripheral wall of the first circular housing a first fixing sleeve, one end of the side rod segment is connected to the first fixing sleeve, the second pivoting member comprises a second circular housing and a part extending from a peripheral wall of the second circular housing a second sleeve, one end of the seat rod is fixed in the second fixing sleeve. The combination of the stroller and the car seat of claim 19, wherein the locking device further comprises a connecting tube sleeved in the first fixing sleeve and connected to the side rod segment. The combination of a stroller and a car seat according to claim 19, wherein the first circular housing has a pivot extending toward the second circular housing, the positioning member is movably placed On the pivot, the spring element is axially disposed between the positioning member and the second circular housing, and the positioning member is pushed into the second by the actuating member biasing the spring member A circular housing to permit pivoting of the first circular housing relative to the second circular housing. The combination of the stroller and the car seat according to claim 21, wherein the actuating member has a plurality of protrusions that pass through the first pivoting member and abut against the positioning member, so as to The post pushes the keeper to move away from the first pivot member. The combination of a stroller and a car seat according to claim 18, wherein the inner sides of the first and second pivot members are spaced apart And a positioning gear is a gear, the gear has a plurality of spaced teeth, and the convex teeth are engaged with the engaging grooves to fix the first pivot The connector is locked with the second pivoting member. The combination of the stroller and the car seat according to claim 23, wherein the convex teeth have a slope adjacent to a side of the first pivoting member, and the lower leg retaining member is opposite to the seatpost When pivoting upward, the protrusion around the inner side of the first pivoting member abuts the slope of the positioning member, so that the positioning member is axially pushed toward the second pivoting member. The combination of the stroller and the car seat according to claim 13 , wherein the first pivoting member and the second pivoting member respectively have a first limiting rib and a second limiting rib. The first limiting rib abuts the second pivoting member at a first angular position, and the second limiting rib abuts the first pivoting member at a second angular position. The combination of a stroller and a car seat according to claim 13 wherein the pair of pushers of the frame respectively have a fixed webbing for fixing the car seat to the frame. .