阅读说明：本技术 可自动折叠的椅子 (Automatically foldable chair ) 是由 赵立财 吴冲 陈令坤 万思超 陶俊波 肖姜 曲世友 于 2019-11-08 设计创作，主要内容包括：本发明涉及家具领域,提供了一种可自动折叠的椅子,包括椅座及椅背,所述椅背与所述椅座的后端铰接,椅座的前端与后端对应设置有前支腿与后支腿,椅背与所述椅座在闭合和展开状态下两者之间对应可拆卸连接有记忆金属一和记忆金属二,记忆金属一和记忆金属二受热变形驱使椅背与椅座展开和闭合。本申请利用记忆金属受热变形和降温恢复常态的特性完成椅子的展开和闭合,操作简单方便,闭合状态下,对记忆金属一进行加热使其变形展开椅背和椅座,此时再将记忆金属二布置于椅背和椅座之间使得椅子保持展开状态；展开状态下,对记忆金属二进行加热使其变形闭合椅背和椅座,此时再将记忆金属一布置于椅背和椅座之间使得椅子保持闭合状态。(The invention relates to the field of furniture, and provides an automatically foldable chair which comprises a chair seat and a chair back, wherein the chair back is hinged with the rear end of the chair seat, the front end and the rear end of the chair seat are correspondingly provided with a front supporting leg and a rear supporting leg, the chair back and the chair seat are correspondingly detachably connected with a first memory metal and a second memory metal in a closed state and an unfolded state, and the first memory metal and the second memory metal are deformed by heat to drive the chair back and the chair seat to be unfolded and closed. The unfolding and the closing of the chair are completed by utilizing the characteristics that the memory metal deforms when being heated and cools to recover to the normal state, the operation is simple and convenient, the memory metal I is heated to deform and unfold the chair back and the chair seat in the closed state, and the memory metal II is arranged between the chair back and the chair seat to keep the chair in the unfolded state; and in the unfolded state, the memory metal II is heated to deform and close the chair back and the chair seat, and the memory metal I is arranged between the chair back and the chair seat to keep the chair in the closed state.)

1. A chair capable of being automatically folded is characterized in that: including seat support (2) and back of the chair (1), back of the chair (1) with the rear end of seat support (2) is articulated, the front end of seat support (2) corresponds with the rear end and is provided with preceding landing leg (3) and back landing leg (4), back of the chair (1) with seat support (2) correspond under closed and expansion state between the two and can dismantle and be connected with memory metal one (10) and memory metal two (20), memory metal one (10) with memory metal two (20) are heated and are out of shape and order about back of the chair (1) with seat support (2) expand and be closed.

2. The automatically collapsible chair according to claim 1, wherein: the initial state and the heated form of the memory metal I (10) correspond to a V-shaped rod shape and a straight rod shape, and the initial state and the heated form of the memory metal II (20) correspond to a straight rod shape and a V-shaped rod shape.

3. The automatically collapsible chair according to claim 1, wherein: the front end downwardly extending of seat support (2) is provided with and takes leg (5), take leg (5) with the front end of seat support (2) is articulated, the middle part of the side of taking leg (5) is provided with memory metal hinge post (51), the middle part of the side of the back of the chair (1) is provided with memory metal hinge post two (11).

4. The automatically collapsible chair according to claim 3, wherein: a support rod (6) is arranged between the side edge of the landing leg (5) and the front landing leg (3).

5. The automatically collapsible chair according to claim 4, wherein: preceding landing leg (3) with back landing leg (4) correspond with the front end and the rear end of seat support (2) are articulated, the one end of bracing piece (6) with the hypomere of preceding landing leg (3) is articulated, the other end of bracing piece (6) with memory metal hinge post (51) are articulated.

6. The automatically collapsible chair according to claim 5, wherein: the upper end of preceding landing leg (3) is relative the upper surface of seat support (2) upwards extends, the upper end of preceding landing leg (3) with be provided with handrail (7) between the side of back of the chair (1).

7. The automatically collapsible chair according to claim 6, wherein: one end of the handrail (7) is hinged with the upper end of the front supporting leg (3), and the other end of the handrail (7) is hinged with the second memory metal hinge column (11).

8. The automatically collapsible chair according to claim 1, wherein: reinforcing rods (8) are arranged between the two front supporting legs (3) on the two side edges of the seat (2) and between the two rear supporting legs (2) on the two side edges of the seat (2).

9. The automatically collapsible chair according to claim 3, wherein: the chair back (1), the chair seat (2) and the landing legs (5) are all provided with chair cushions (9).

10. The automatically collapsible chair according to claim 1, wherein: electric heating devices are arranged in the memory metal I (10) and the memory metal II (20).

Technical Field

The invention belongs to the field of furniture, and particularly relates to an automatically foldable chair.

Background

The chair is common furniture in daily life, and a folding chair is designed in the prior art so as to be convenient for people to use, thereby reducing the occupied space as much as possible. But for the old and the children with smaller strength, the problem of how to easily use the folding furniture is solved.

Disclosure of Invention

The invention aims to provide an automatically foldable chair which is convenient for people to fold and store.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a but chair of automatic folding, includes the seat support and the back of the chair, the back of the chair with the rear end of seat support is articulated, the front end of seat support and rear end correspond and are provided with preceding landing leg and back landing leg, the back of the chair with the seat support corresponds under closed and expansion state between the two and can dismantle and be connected with memory metal one and memory metal two, memory metal one with memory metal two is heated the deformation and orders about the back of the chair with the seat support expandes and closes.

Optionally, the initial state and the heated form of the first memory metal correspond to a V-shaped rod shape and a straight rod shape, and the initial state and the heated form of the second memory metal correspond to a straight rod shape and a V-shaped rod shape.

Optionally, the front end downwardly extending of seat support is provided with the leg of taking, take the leg with the front end of seat support is articulated, the middle part of the side of taking the leg is provided with memory metal hinge post one, the middle part of the side of the back of the chair is provided with memory metal hinge post two.

Optionally, a support rod is arranged between the side of the landing leg and the front landing leg.

Optionally, the front supporting leg and the rear supporting leg are correspondingly hinged to the front end and the rear end of the seat, one end of the supporting rod is hinged to the lower section of the front supporting leg, and the other end of the supporting rod is hinged to the first memory metal hinge column.

Optionally, the upper end of the front leg extends upward relative to the upper surface of the seat, and a handrail is arranged between the upper end of the front leg and the side edge of the seat back.

Optionally, one end of the armrest is hinged to the upper end of the front leg, and the other end of the armrest is hinged to the second memory metal hinge column.

Optionally, a stiffener is disposed between the two front legs at the two sides of the seat and between the two rear legs at the two sides of the seat.

Optionally, the chair back, the chair seat and the leg are all provided with chair cushions.

Optionally, an electric heating device is arranged in the memory metal I and the memory metal II.

Compared with the prior art, the unfolding and the closing of the chair are completed by utilizing the characteristics that the memory metal is deformed by heating and is cooled to recover the normal state, the operation is simple and convenient, the memory metal I is connected between the chair back and the chair seat in the closed state, then the memory metal I is heated to deform and unfold the chair back and the chair seat, and at the moment, the memory metal II is arranged between the chair back and the chair seat to keep the chair in the unfolded state; and in the unfolded state, a second memory metal is connected between the chair back and the chair seat, then the second memory metal is heated to deform and close the chair back and the chair seat, and at the moment, the first memory metal is arranged between the chair back and the chair seat to keep the chair in a closed state.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an expanded view of the automatically foldable chair according to the present invention;

FIG. 3 is a schematic closing view of the automatically foldable chair according to the present invention;

FIG. 4 is a schematic view of the heated state of the first memory metal or the initial state of the second memory metal;

FIG. 5 is a schematic diagram of the heated state of the memory metal two or the initial state of the memory metal one.

Reference numerals:

1. a chair back; 11. a memory metal hinge column II; 2. a chair seat; 3. a front leg; 4. a rear leg; 5. building legs; 51. a memory metal hinge column I; 6. a support bar; 7. a handrail; 8. a reinforcing bar; 9. a seat cushion; 10. a memory metal one; 20. memory metal two.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

As shown in fig. 1, the automatically foldable chair provided by the invention comprises a seat 2 and a chair back 1, wherein the chair back 1 is hinged to the rear end of the seat 2, the front end and the rear end of the seat 2 are respectively provided with a front leg 3 and a rear leg 4, the chair back 1 and the seat 2 are correspondingly detachably connected with a memory metal I10 and a memory metal II 20 between the closed state and the unfolded state, and the memory metal I10 and the memory metal II 20 are deformed by heat to drive the chair back 1 and the seat 2 to be unfolded and closed. The memory metal can be heated by adopting an electric heating device, the interiors of the first memory metal 10 and the second memory metal 20 are in a cavity shape, the arrangement position of the electric heating device is to be avoided from the position where the memory metal is heated to deform, an electric switch is arranged outside the first memory metal 10 and the second memory metal 20, and the memory metal can be heated to deform by pressing the electric switch or heated to deform by adopting a mode of heating water inside the first memory metal 10 and the second memory metal 20.

Compared with the prior art, the unfolding and the closing of the chair are completed by utilizing the characteristics that the memory metal is deformed by heating and is cooled to recover the normal state, the memory metal I10 is connected between the chair back 1 and the chair seat 2 in the closed state, then the memory metal I10 is heated to deform and unfold the chair back 1 and the chair seat 2, and at the moment, the memory metal II 20 is arranged between the chair back 1 and the chair seat 2 to keep the chair in the unfolded state; in the unfolded state, a second memory metal 20 is connected between the chair back 1 and the chair seat 2, then the second memory metal 20 is heated to deform and close the chair back 1 and the chair seat 2, and at the moment, the first memory metal 10 is arranged between the chair back 1 and the chair seat 2 to keep the chair in the closed state.

In some embodiments, as shown in fig. 4 and 5, the initial state and the heated form of the memory metal one 10 correspond to a V-shaped rod and a straight rod, and the initial state and the heated form of the memory metal two 20 correspond to a straight rod and a V-shaped rod. The chair back 1 and the chair seat 2 are hinged, a limiting device is arranged between the chair back 1 and the chair seat 2 and used for limiting the maximum unfolding angle of the chair back and the chair seat 2, the memory metal I10 is in a V-shaped rod shape in a closed state, and then the V-shaped rod shape is heated to deform to a straight rod shape, so that force is provided to enable the chair back 1 and the chair seat 2 to unfold; in the unfolded state, the second memory metal 20 is in a straight rod shape, and then the straight rod shape is heated to be deformed into a V-shaped rod shape, so that the force is provided to close the chair back 1 and the chair seat 2. Of course, those skilled in the art can also use other shapes of the first memory metal 10 and the second memory metal 20, which can provide force to close or open the backrest 1 and the seat 2 during the deformation process.

In some embodiments, as shown in fig. 2 and 3, a leg 5 extends downward from the front end of the seat 2, the leg 5 is hinged to the front end of the seat 2, a first memory metal hinge column 51 is disposed in the middle of the side of the leg 5, and a second memory metal hinge column 11 is disposed in the middle of the side of the backrest 1. The lap 5 is convenient for people to place legs, and meanwhile, in order to facilitate the connection of the memory metal, a memory metal hinge column I51 and a memory metal hinge column II 11 are arranged to be correspondingly hinged with two ends of the memory metal. When the chair is unfolded by heating the memory metal I10, the memory metal II 20 is in a detached or uninstalled state, after the chair is unfolded, the memory metal I10 is detached and placed for standby, and at the moment, the memory metal II 20 is connected with the metal hinge column I51 and the memory metal hinge column II 11 to further keep the unfolded state of the chair; when the chair needs to be stored, the second memory metal 20 is directly heated to close the chair, after the chair is closed, the second memory metal 20 is detached and placed for later use, at the moment, the first memory metal 10 is connected with the first metal hinged column 51 and the second memory metal hinged column 11 to further keep the closed state of the chair, and the chair is rapidly unfolded and closed through the arrangement mode; in addition, a storage bag can be arranged at the rear part of the chair back, so that the spare memory metal can be stored and placed conveniently.

In some embodiments, as shown in fig. 2 and 3, a support bar 6 is provided between the side edge of the landing leg 5 and the front leg 3, and the support bar 6 is used for jacking up the landing leg 5.

In some embodiments, as shown in fig. 2 and 3, the front leg 3 and the rear leg 4 are hinged to the front end and the rear end of the seat 2, respectively, one end of the support bar 6 is hinged to the lower section of the front leg 3, and the other end of the support bar 6 is hinged to the first memory metal hinge post 51. The support rod 6 is hinged with the front support leg 3 and the memory metal hinge column one 51, so that the landing leg 5 can be conveniently and rotatably folded relative to the front support leg 3.

In some embodiments, as shown in fig. 2 and 3, the upper end of the front leg 3 extends upward relative to the upper surface of the seat 2, and an armrest 7 is disposed between the upper end of the front leg 3 and the side edge of the chair back 1, and the armrest 7 is disposed to facilitate the placement of a human hand.

In some embodiments, as shown in fig. 2 and 3, one end of the armrest 7 is hinged to the upper end of the front leg 3, and the other end of the armrest 7 is hinged to the second memory metal hinge post 11. In the unfolded state, as shown in fig. 2, the memory metal II 20 supports the chair back 1, the chair seat 2 and the landing legs 5, then the chair back 1, the chair seat 2 and the landing legs 5 are heated, the memory metal II 20 is deformed, the chair seat 2 rotates to be close to the chair back 1, the landing legs 5 rotate to be close to the chair seat 2, the armrests 7 rotate to be close to the chair back 1, the front supporting legs 3 rotate to be close to the armrests 7, at the moment, a person needs to manually fold the rear supporting legs 4 upwards relative to the chair seat 2, finally, the chair is changed from the unfolded state to the closed state, as shown in fig. 3, the memory metal II 20 is folded, and two ends of the memory metal I10 are correspondingly connected with the memory metal hinge columns I51 and the memory metal hinge columns II 11.

In some embodiments, as shown in fig. 1, a reinforcing bar 8 is disposed between the two front legs 3 at both sides of the seat 2 and between the two rear legs 2 at both sides of the seat 2, and the reinforcing bar 8 increases the structural stability of the chair.

In some embodiments, as shown in fig. 2 and 3, the chair back 1, the chair seat 2 and the landing legs 5 are all provided with chair cushions 9, and the chair cushions 9 increase the comfort of the human body.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.