TWI687180B - Quick release device for headrest bracket of office chair - Google Patents

Abstract

A quick-release device for a headrest bracket of an office chair, comprising: a headrest assembly, the headrest assembly It includes a headrest, a bracket and an adjustment seat, wherein the headrest is pivotally connected with the bracket, and the bracket can be displaced up and down by the adjustment seat, and the inner seat body of the adjustment seat is formed with two parallel convex vertical shapes To the sliding rail, the two sliding rails have convex projection wings on the sides, and a projection is provided between the two sliding rails near the convex stop; a fixed seat is a joint with the aforementioned adjusting seat The mating surface is provided with a groove whose bottom end is a closed end, and recessed grooves on both sides of the groove are provided with concave grooves, and the width between the two grooves is just to accommodate the insertion of the two sliding rails. In addition, there are two lock holes near the upper edge of the fixing seat, which can be locked on the frame of the back of the chair, and a buckle hook is provided between the other two lock holes, and the buckle hook is inserted into the inner seat body of the adjusting seat just after being inserted. Can be snapped onto the protruding ridge and positioned.

Description

Quick release device for headrest bracket of office chair

The invention provides a technical field of office chairs, in particular, it provides a quick-release device for an office chair headrest bracket, and the inner seat body of the adjusting seat slides on the embedded groove of the fixed seat with a slide rail and its insertion wings , And with the convex buckle and buckle interlocking and fixing each other, to achieve the purpose of rapid assembly and stable combination.

Press, some of the more comfortable chair types of today's office chairs will be assembled with a headrest, so the headrest provides a headrest for a more comfortable sitting and lying mode, but the user has a fat, thin, tall and short head. The pillow should also be changed. On the other hand, due to the limitation of the volume, the headrest and the back of the chair are usually packaged separately. Consumers usually assemble the headrest by themselves, while the traditional assembly of the fixed seat and the headrest bracket usually needs to borrow It is locked by screws, so there are indeed inconveniences when assembling the headrest, and hand tools are required. If there is no hand tool, the assembly cannot be carried out. There is really a need for improvement.

Therefore, how to develop a more ideal and practical innovative structure in response to the problems of the above-mentioned conventional structure is what consumers are eagerly expecting, and it is also the goal and direction of related companies to work hard to develop breakthroughs.

In view of this, the inventor has many years of experience in manufacturing development and design of related products. In view of the above goals, after detailed design and careful evaluation, the inventor finally has a practical invention. .

The main purpose of the present invention is to provide a quick-release device for the headrest bracket of an office chair. The inner seat body of the adjustment seat slides on the embedded groove of the fixed seat with a slide rail and its insertion wings, and uses its protrusions and buckles The hooks are fastened to each other to achieve the purpose of quick assembly and stable combination.

In order to achieve the above purpose and effect, the present invention provides a quick release device for a headrest bracket of an office chair, which includes: a headrest assembly including a headrest, a bracket and an adjustment seat, wherein the headrest and the bracket It is pivotally connected, and the bracket can be displaced up and down by the adjustment seat. The inner seat body of the adjustment seat is formed with two vertically protruding slide rails with parallel protrusions. The two slide rails have an outer convex plug The wing is provided with a convex wall near the abutting convex stop between the two slide rails; a fixed seat is a butting surface with respect to the aforementioned adjusting seat, the butting surface is provided with a groove with a closed end at the bottom, the groove There are recessed grooves on both sides, and the width between the two grooves is just enough for the insertion of the two wings of the sliding rail, and there are two locking holes near the upper edge of the fixing seat, which can be locked On the frame of the back of the chair, there is a buckle hook between the other two locking holes, and the buckle hook can be snapped onto the protrusion and positioned after being inserted into the inner seat body of the adjusting seat.

Regarding the technology, means and functions adopted by the present invention, a preferred embodiment is described in detail with reference to the drawings. It is believed that the above-mentioned objects, structures and features of the present invention can be gained a deep and specific understanding .

10: Headrest assembly

11: Headrest

12: Bracket

13: Adjusting seat

131: inner body

1310: Slide rail

1311: Splice wings

1312: contact bump

1313: Notch

1314: Convex

1315: Straight cut

20: Fixed seat

21: butt

22: groove

23: embedded groove

24: keyhole

241: Class-like concave edge

25: flange

26: Buckle

261: Grooving

262: Notch

30: chair back

The first figure is a three-dimensional exploded view of the present invention.

The second figure is a schematic diagram of a side view of the present invention.

The third figure is an exploded schematic view of the inner seat body and the fixing seat of the present invention.

The fourth figure is a partial sectional view of the three-dimensional combination of the inner seat body and the fixing seat of the present invention.

The fifth figure is a schematic sectional view of the combination of the inner seat body and the fixing seat of the present invention before being engaged.

The sixth figure is a schematic cross-sectional view of the present invention after the inner seat body and the fixed seat are engaged.

The invention provides a designer of a quick-release device for a headrest bracket of an office chair.

In order for your reviewing committee to have a better understanding and understanding of the purpose, features and efficacy of the present invention, the detailed description of the embodiments and drawings is as follows: refer to the first to sixth figures, the present invention provides an office chair The quick release device of the headrest bracket includes: a headrest assembly 10 including a headrest 11, a bracket 12 and an adjustment seat 13, wherein the headrest 11 is pivotally connected to the bracket 12, and The bracket 12 can be moved up and down by the adjusting base 13 (this part has been applied for separately, and will not be repeated here). The present invention mainly forms two parallel convex vertical shapes on the inner base 131 of the adjusting base 13 To the sliding rail 1310, the sides of the two sliding rails 1310 have convexly protruding insertion wings 1311, and the seat edge of the upper edge of the two sliding rails 1310 is provided with a horizontal abutment projection 1312, the abutment The convex stop 1312 is larger than the outer diameter of the two slide rails 1310, and the abutting convex stop 1312 is provided with a notch 1313 in the middle, and a protruding line 1314 is provided between the two slide rails 1310 near the abutting convex stop 1312. The convex wall 1314 is an oblique shape that gradually increases from the bottom to the top, and the convex wall 1314 has a straight tangent plane 1315 that is flush with the straight line of the end of the two slide rails 1310, so that the thickness of the two slide rails 1310 and the convex wall 1314 The thickness from the root of the straight section to the straight section 1315 is the same; a fixed seat 20 is a butting surface 21 opposite to the aforementioned adjusting seat 13, the butting surface 21 is provided with a groove 22 whose bottom end is a closed end, and both sides of the groove 22 There is an indentation groove 23 in a concave shape, the width between the two indentation grooves 23 is just to accommodate the insertion wings 1311 of the two slide rails 1310, and the locking seat 20 is provided with two locking holes 24 near the upper edge. It can be locked on the frame of the seat back 30. In this embodiment, the positions of the two locking holes 24 are formed at the junction of the groove 22 and the flanges 25 on both sides. The flanges 25 on both sides are horizontally perforated with a stepped concave edge 241, and the other two locking holes 24 A buckle hook 26 is provided. The buckle hook 26 is integrally protruded from the top to the bottom of the groove surface of the fixing seat 20. The buckle hook 26 is formed with a diagonal groove 261. The buckle 26 can achieve proper elastic compression by its plasticity, and the buckle 26 can form a notch 262 from the back of the side of the groove 261 to reduce the thickness of the buckle 26, and at the same time After the inner seat body 131 of the adjusting seat 13 is inserted, it can be hooked with the protrusion 1314 and positioned.

By the composition of the above-mentioned components, when the adjusting base 13 is combined with the fixed base 20 through its inner seat body 131, since the inner seat body 131 protrudes from two vertical slide rails 1310, the two slide rails 1310 again There are plug wings 1311 which are convex, so that the plug wings 1311 on both sides can be inserted into the recessed grooves 23 on both sides of the groove 22 of the fixing seat 20, and because of the fixing seat The bottom end of the groove 22 of the 20 is a closed end and an abutment protrusion 1312 formed by the upper edges of the two slide rails 1310 of the inner seat body 131, so that the fixed seat 20 and the inner seat body 131 can be formed up and down just after being fitted For the contact point, please refer to the fifth figure, which is a schematic diagram of the combined cross-section of the inner seat body 131 and the fixed seat 20 of the adjusting seat 13 of the present invention, showing the protrusion 1314 of the inner seat body 131 and the fixed seat 20. In the state before the hook 26 is not hooked, when the inner seat body 131 continues to be pressed down, its convex wall 1314 will then project out of the inclined hook of the groove surface of the fixed seat 20 through the straight cut surface 1315 26 is compressed inwards, and after passing through the hook 26, the hook 26 will be elastically reset and form a mutual hook positioning with the protrusion 1314, according to the purpose of achieving fast assembly and stable combination, and if it needs to be disassembled At this time, since the abutment projection 1312 of the upper edge of the inner seat body 131 is provided with a notch 1313, the notch 1313 can be inserted into the pillar 13 to compress the hook 26 in the fixed seat 20 so that it is in contact with the inner seat body 131 Return to the hook state to achieve the purpose of quick disassembly.

It should be particularly noted that since the fixing seats have been locked on the seat back 30 in advance, the user only needs to insert the adjusting seat 13 of the headrest assembly 10 into the fixing seat 20 to complete the positioning when assembling, completely It can be assembled very quickly and surely without any tools.

As can be seen from the above, the quick release device for the headrest bracket of the office chair of the present invention is indeed the first in the industry to meet the novelty requirements of the invention patent, and its comprehensive and innovative design complies with the invention patent The progressive element, and the inner seat body of the adjusting seat is slidingly inserted into the groove of the fixed seat with the slide rail and the insertion wing, and is fixed by the interlocking of the convex and the hook, so that the assembly is fast and combined The purpose of stability is in line with better industrial utilization.

The foregoing is a detailed description of the technical features of the present invention for the preferred embodiments of the present invention; however, those skilled in the art may make changes and modifications to the present invention without departing from the spirit and principles of the present invention. Such changes and modifications shall be covered by the scope defined by the scope of the patent application as follows.

In summary, the present invention provides a quick-release device for the headrest bracket of an office chair, which has indeed achieved all the purposes of the present invention. In addition, the spatial configuration of its combined structure has not been seen in similar products, nor has it been disclosed before the application. Having complied with the provisions of the Patent Law, the application was filed in accordance with the law.

131: inner body

1310: Slide rail

1311: Splice wings

1312: contact bump

1313: Notch

1314: Convex

1315: Straight cut

20: Fixed seat

22: groove

24: keyhole

26: Buckle

261: Grooving

262: Notch

Claims (3)

A quick-release device for a headrest bracket of an office chair includes a headrest assembly including a headrest, a bracket and an adjustment seat, wherein the headrest is pivotally connected to the bracket, and the bracket can be adjusted by the adjustment seat Displacement up and down, the main feature is: the inner seat body of the adjusting base is formed with two vertically protruding vertical slide rails, the sides of the two slide rails have externally convex plugging wings, and the two slide rails The seat body of the rim is provided with a horizontal abutting convex stop, the abutting convex stop is larger than the outer diameter of the two slide rails, and the abutting convex stop is provided with a notch in the middle, and the two slide rails A convex bead is provided near the abutting convex stop, and the convex bead has an oblique abutment shape gradually increasing from bottom to top, and the convex bead has a straight tangent plane flush with the straight line of the end of the two slide rails, so that the two slide rails The thickness of the base is the same as the thickness from the root of the convex to the straight cut surface; a fixed seat is a butting surface with respect to the aforementioned adjusting seat, the butting surface is provided with a groove whose bottom end is a closed end, and the groove is provided on both sides There is a recessed groove, and the width between the two grooves is just enough for the insertion of the two sliding rails, and the fixing seat is provided with two locking holes near the upper edge, which can be locked to the back of the seat On the frame, a buckle hook is provided between the other two lock holes, the buckle hook is integrally protruded from the groove surface of the fixing seat and is inclined obliquely from top to bottom, and is formed on both sides and the bottom edge of the buckle hook The groove is cut so that the buckle hook can achieve proper elastic compression due to its plasticity, and at the same time, the buckle hook can be hooked with the protrusion and positioned with each other after being inserted into the inner seat body of the adjusting seat. The quick release device for the headrest bracket of an office chair as described in item 1 of the patent application scope, wherein the position of the two lock holes is formed at the junction of the groove and the flanges on both sides, a surface is lower than the groove and The flanges on both sides are horizontally perforated with stepped concave edges. The quick release device for the headrest bracket of an office chair as described in item 1 of the patent application scope, wherein the buckle can form a notch from the back side of the groove side to reduce the thickness of the buckle.

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