KR20080084543A - Folding chair - Google Patents

Abstract

A folding chair is provided to enable a user to fold the chair with one hand, to be carried without difficulty and to improve the exterior thereof when being stood by itself in the folding state. A folding chair includes a couple of front legs(11), a couple of rear legs(12) and a seat portion(13). The seat portion is supported by the front legs and rear legs downwardly, and the upper surface(13B) of the seat portion is used as a seat surface. The rear edge of the seat portion is gripped and lifted with the rear leg as a rear side in the seat portion. The seat portion is rotated to make the upper surface of the seat portion be a front side. Then, the front and the rear legs approach each other and are folded.

Description

Folding chair {FOLDING CHAIR}

The present invention relates to a folding table for use when the elderly or physically disabled take a shower in the bathroom.

Conventionally, the folding chair as described above has, for example, as shown in Patent Literature 1, the rear leg portion is pivotally attached to the front leg portion in which the backrest frame is integrated, and the rear edge of the seat portion is pivotally attached to the rear leg portion. Further, a link is sandwiched between the middle portion in the front-rear direction of the seat portion and the front leg portion. Then, using both hands, the back frame and the front edge of the seat portion are gripped, respectively, and when the front edge of the seat portion is lifted, the seat portion rotates so that the lower surface of the seat portion is the front side, and in conjunction with the rotation of the seat portion, The folding chair is folded by approaching the front and rear legs.

[Patent Document 1] Japanese Unexamined Patent Publication No. 2002-191523

By the way, as mentioned above, the conventional folding chair needs to use both hands when folding. In addition, when transporting in a folded state, the back frame is lifted, so it is necessary to lift to a sufficient height while paying attention not to touch the floor on the front leg or the rear leg.

In addition, the conventional folding chair has a problem that the outer surface of the folding seat is in a bad state when freestanding in the folded state because the lower surface of the seat portion becomes the front side when the folding chair is freestanding in the folded state.

SUMMARY OF THE INVENTION The present invention has been made in view of the problems of the prior art as described above, and its object is to be able to fold with only one hand, to carry out easily without difficulty, and to make it stand-alone when the upper surface of the sheet is folded forward. It is to provide a folding table to improve the appearance.

In order to achieve the above object, the invention of the folding table according to claim 1 is supported from below by a pair of left and right front legs, a pair of left and right rear legs, and these front and rear legs. A folding table comprising a seat portion using an upper surface as a seat surface in a closed state, wherein the rear portion of the seat portion is rearward from the seat portion, and the rear edge of the seat portion is gripped and raised so that the upper surface of the seat portion is the front side. It is a summary that the seat portion can be rotated, and the front leg portion and the rear leg portion are brought close to each other to be folded, and to stand on their own in a folded state.

According to the said structure, since it can be made to stand by itself in a folded state, it can be left even if there is no pedestal etc. in the place where the folding chair was folded. As a result, when a short rest is carried out when carrying in a folded state, it can be made to stand at the position, without having to lean on a wall, and carrying can be performed easily without difficulty. In addition, since the sheet portion is rotated so that the upper surface of the sheet portion is the front side, the appearance value can be improved.

In the invention of the folding chair according to claim 2, in the invention of the folding chair according to claim 1, a link bar is sandwiched between an upper end portion of the pair of left and right front side legs, and a link is sandwiched between the link bar and the front portion of the seat portion. Let's have a gist.

In the invention of the folding chair according to claim 3, in the invention of the folding chair according to claim 1, a link is interposed between an upper portion of the pair of left and right front side legs and a front portion of the seat portion.

According to the above configuration, when folding the folding chair, the rear edge of the seat portion is lifted, and the front leg and the rear leg portion approach each other by being linked with the seat by the link, and the folding chair is folded. Therefore, the folding chair can be folded with one hand without using both hands.

In the invention described in claim 4, in the invention of the folding table according to any one of claims 1 to 3, a sheet side frame portion is formed to bend backward from the upper end of the pair of left and right front side legs, respectively, and the left and right said sheets The seat portion is supported between the side frame portions, and sheet support frame portions are bent forward on the upper ends of the pair of left and right rear legs, respectively, and the front and rear ends of the left and right sheet supporting frame portions pivot on the lower surface of the sheet portion, respectively. In addition to the attachment, the sheet support frame portions on the left and right sides and the sheet side frame portions on the left and right sides are pivotally attached to each other.

According to the above configuration, since the left and right seat support frame portions and the left and right seat side frame portions are pivotally attached to each other, the folding folding table approaches to the extent that the front leg portion and the rear leg portion come into close contact with each other. Since the front and rear leg portions are arranged so as to be arranged in the front-rear direction with the front leg portion and the rear leg portion interposed therebetween, the folding chair in the folded state can be freely reliably supported.

In the invention described in claim 5, in the invention of the folding chair according to any one of claims 1 to 4, the gist is provided at the rear end of the seat portion.

Conventionally, when carrying the folding chair in a folded state, it is necessary to lift the back frame, so it is necessary to lift to a sufficient height while paying attention not to touch the floor on the front leg or the rear leg. According to the configuration of claim 5, by providing a handle on the seat, the folding chair can be carried by holding the handle, so that the front leg or the rear leg does not need to be concerned with the floor. In addition, transportation can be easily performed without difficulty.

In the invention according to claim 6, in the invention of the folding table according to claim 4 or 5, the rear end of the seat-side frame portion is formed with a bent frame having a bent upwardly to connect the left and right seat-side frame portions. Make a point.

According to the above configuration, by providing the back frame, the seat can be comfortably seated in the folding seat, and the folding seat in the folded state can be carried by holding the back frame.

In the invention according to claim 7, in the invention of the folding table according to any one of claims 4 to 6, between the rear end of the left and right seat side frame portions, or between the rear end of the left and right seat support frame portions or the backrest frame. A lock bar is interposed between the lower ends in a horizontal direction, and an engaging claw is disposed on the lower surface of the rear edge of the seat portion, and the engaging claw is locked by a biasing force of a spring. It is engaged with the bar, and the main purpose is to fold after releasing the engagement between the engaging claw and the lock bar.

According to the said structure, the engagement of a meshing claw and a lock bar by a spring can be made reliable.

In the invention according to claim 8, in the invention of the folding chair according to claim 7, an operation member is provided at the rear end or the front end of the engaging claw, and the engaging claw slides with respect to the seat in the lower surface of the seat. It is attached so as to be able to move, and it makes it a summary that the said engagement claw slides | moves and the engagement of the said engagement claw and the lock bar is released by pulling the said operation member to the back or the front.

According to the above configuration, the engaging claw can be easily moved backward or forward by providing the operation member.

In the invention according to claim 9, in the invention of the folding chair according to claim 7, an operation member is provided at the rear end or the front end of the engaging claw, and the upper end of the engaging claw is pivotally attached to the lower surface of the seat portion. The engagement claw is rotated by pulling up the operation member to release the engagement between the engagement claw and the lock bar.

According to the above configuration, the engaging claw can be easily rotated by providing the operation member.

In the invention according to claim 10, in the invention of the folding chair according to claim 9, a handle is provided at a rear side edge or a front side edge of the seat portion so as to have a positional relationship corresponding to the lock bar, and the handle is held together with the operation member. When gripping and pulling the operation member close to the handle, the engagement claw is rotated to release the engagement of the engagement claw and the lock bar.

According to the above configuration, the handle can be held together with the handle by holding the handle so as to have a corresponding positional relationship with the lock bar. For this reason, compared with the case where an operation member is moved by applying a force only by a finger, the operation member can be moved by applying a force to the whole palm.

In the invention according to claim 11, in the invention of the folding chair according to claim 10, the lock bar and the handle are disposed at the rear edge of the seat portion, and the engaging claw and the operation member are located at the rear of the lower surface of the seat portion. And a direction in which the operation member is pulled close to the handle in the same direction as the direction of rotating the rear edge of the seat portion when folded, and when the operation member is pulled in close to the handle, the engaging claw and the The locking bar is released, and the operation member and the handle are pulled up so that the rear edge of the seat portion is rotated upward.

According to the above configuration, the direction in which the operation member is pulled close to the handle is upward in the same direction as the direction of rotating the rear edge of the seat portion when folded, so that the operation member is moved by applying a force to the entire palm and moving the operation member. The operation can be linked to the operation of rotating the seat portion in that state. As a result, the operation from moving the operation member to the upward rotation of the rear edge of the seat portion can be comfortably performed in a series of operations. In addition, when carrying the folded folding chair by the handle of the seat portion, the lifting operation of the folding folding chair can also be included in the series of operations.

In the invention according to claim 12, in the invention of the folding chair according to claim 10 or 11, the operation member is formed in a rod shape, and the gist is arranged in parallel with the handle.

According to the above configuration, the operation member is formed in a rod shape and disposed in parallel with the handle so that the handle can be gripped to easily hold the operation member together with the handle, and the force is more easily applied to the entire palm with respect to the operation member. As a result, the operation member can be comfortably operated even by a person without grip, particularly an elderly person or a physically handicapped person.

Effect of the Invention

According to the present invention, the folding table can be self-supporting in a folded state, and when folded, the lower surface of the seat portion is not the front side, so that the external value can be improved, it can be folded with one hand, and the folding table can be transported. Storage can be done without difficulty.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment which actualized the folding chair of this invention is described.

1-6 is a front view, a back view, a top view, a bottom view, a side view, and a side cross-sectional view which show the folding chair of embodiment in order.

The folding chair 10 has a pair of left and right front legs 11, a pair of left and right rear legs 12, the left and right pairs of front leg portions 11 and the left and right pairs of rear The sheet | seat part 13 supported from the lower side by the side leg part 12 is provided. Moreover, the folding chair 10 is provided with the backrest 14 and the arm stand 15. As shown in FIG.

From the upper end of each of the left and right pairs of the front leg portions 11, the seat side frame portions 16 extend rearwardly (see Figs. 4 and 5). From a rear end of the pair of left and right seat-side frame portions 16, a U-shaped back frame 17 extends upward to connect the left and right seat-side frame portions. The pair of left and right front legs 11, the pair of left and right seat-side frame portions 16 and the backrest frame 17 are bent with one pipe.

The link bar 18 is sandwiched between the upper and lower ends of the left and right front leg portions 11. A front side support bar 19 is sandwiched between the front end portions of the left and right seat side frame portions 16 (see FIGS. 4 and 5). The lock bar 20 is interposed between the rear ends of the left and right seat-side frame portions 16 (see FIGS. 4 and 5).

The front leg portion 11 has a front leg upper pipe 11A and a front leg lower pipe 11B in which the front leg upper pipe 11A is slidably inserted (see FIG. 5). ). The front leg upper pipe 11A is provided with an insertion passage pin 11D. The insertion pin 11D is formed to protrude on the outer circumferential surface of the front leg upper pipe 11A by being biased from the inside of the front leg upper pipe 11A. On the other hand, a plurality of locking holes 11C are formed in the front leg lower pipe 11B. When the length of the front leg portion 11 is adjusted, the front leg lower pipe with respect to the front leg upper pipe 11A while pushing the insertion passage pin 11D into the front leg upper pipe 11A. 11B is moved and the insertion leg pin 11D is engaged with the predetermined locking hole 11C to fix the front leg lower pipe 11B to the front leg upper pipe 11A. Thus, the front side leg part 11 is comprised so that length adjustment is possible by changing 11 C of engagement holes which the said insertion pipe and the pin 11D engage. Further, a rubber non-slip cap 11E is attached to the lower end of the front leg lower pipe 11B to prevent the front leg 11 from slipping on the floor.

The backrest 14 is attached to the upper edge of the backrest frame 17. The backrest 14 may be fixed to the upper edge of the backrest frame 17 or may be rotatably attached. When the backrest 14 is rotatably attached to the upper edge of the backrest frame 17, the backrest 14 can be adjusted in accordance with the user's physique. In addition, a gripping hole 14A is formed in the upper part of the backrest 14 so that the folding chair 10 can be moved or lifted up using the gripping hole 14A.

The arm rests 15 are attached to both the left and right sides of the backrest frame 17, respectively. The arm rest 15 may be attached to the backrest frame 17 so as to be rotatable upward and may be fixed. When the arm rest 15 is rotatably attached to the backrest frame 17 upward, the arm rest 15 when the user sits on the folding chair 10 or when the folding chair 10 is folded. The effect can be rotated upward so that does not interfere.

The rear leg portion 12 is provided with a pair of left and right as described above, but from the upper end of each of the left and right pair of the rear leg portion 12, the seat support frame portion 21 is formed to extend forward (See FIG. 4, FIG. 5). These left and right pairs of rear leg portions 12 and the left and right pairs of sheet support frame portions 21 are each bent with one pipe.

The front end (front end) of the seat support frame portion 21 is pivotally attached to a rotating sheet 13A provided at an intermediate portion in the front-rear direction from the lower surface of the seat portion 13. Accordingly, the rear leg portion 12 is configured to be rotatable in the vertical direction with respect to the sheet portion 13 together with the sheet supporting frame portion 21. The sheet support frame portion 21 and the left and right seat side frame portions 16 disposed outside thereof are pivotally attached to each other at an intermediate portion in the front-rear direction by the rotation shaft 23. As a result, the rear leg portion 12 and the seat supporting frame portion 21, the front leg portion 11, and the left and right seat side frame portions 16 are relatively relative to the rotation axis 23. It is configured to be rotatable vertically. Moreover, the back side support bar 22 is pinched | interposed over the rear end from the left and right said sheet support frame parts 21 (refer FIG. 4, FIG. 5).

The rear leg portion 12 has a rear leg upper pipe 12A and a rear leg lower pipe 12B in which the rear leg upper pipe 12A is inserted (see FIG. 5). The rear leg upper pipe 12A is provided with an insertion passage pin 12D, and the insertion passage pin 12D is biased from the inside of the rear leg upper pipe 12A so that the rear leg upper pipe 12A is provided. It is formed so that it may protrude on the outer peripheral surface of 12A. On the other hand, a plurality of locking holes 12C are formed in the rear leg lower pipe 12B. In adjusting the length of the rear leg portion 12, the insertion leg pin 12D is pushed into the rear leg upper pipe 12A while pushing the insertion leg pin 12D into the rear leg upper pipe 12A. 12B is moved, and the insertion-pass pin 12D is engaged with a predetermined locking hole 12C to fix the rear leg lower pipe 12B with respect to the rear leg upper pipe 12A. Thus, the rear side leg part 12 is comprised so that length adjustment is possible by suitably changing the engaging hole 12C which the insertion cylinder and pin 12D engage. In addition, a rubber non-slip cap 12E is attached to the lower end of the rear leg lower pipe 12B to prevent the rear leg 12 from slipping on the floor.

The upper surface 13B of the said sheet part 13 is used as a sheet surface. A link sheet 13C is provided at the front of the lower surface of the sheet portion 13. A link 24 is sandwiched between the link sheet 13C and the link bar 18 of the front leg portion 11. The link 24 is interlocked with the seat portion 13 when the seat portion 13 is rotated in the up and down direction with respect to the seat support frame portion 21, and the front leg portion 11 and the seat. The side frame portion 16 is rotated with respect to the rear leg portion 12 and the seat support frame portion 21.

In addition, in the folding chair 10 of this invention, the link bar 18 is abbreviate | omitted, and the said link 24 is the link seat 13C of the front part of the said seat part 13, and the said left-right pair of front leg part It may be sandwiched between the upper portions of (11).

A pair of left and right front side support sheets 13D is provided on the front side of the lower surface of the sheet portion 13 in front of the middle portion in the front-rear direction. The front side support sheet 13D is mounted on the front side support bar 19 of the sheet side frame portion 16. And, by loading the front side support sheet 13D on the front side support bar 19, the seat portion 13 is left and right through the front side support bar 19, the seat side frame portion 16 It is supported in between.

In addition, a pair of left and right rear support sheets 13E is provided on the rear side of the lower surface of the seat portion 13 from the middle portion in the front-rear direction. The rear support sheet 13E is stacked on the rear support bar 22 of the sheet support frame portion 21. And the said back support sheet 13E is mounted in the said back support bar 22, and the front end of the said sheet support frame part 21 is attached to the lower surface of the said seat part 13 by the said rotating seat 13A. The sheet portion 13 is supported on the left and right sheet support frame portions 21 by pivoting through.

Fig. 7 (a) is a side sectional view enlarging the rear edge portion of the seat portion of the folding seat.

On the rear edge of the seat portion 13, a recess 13F is formed on the lower surface of the rear edge of the seat portion 13, and the ceiling surface portion 13G of the recess 13F is a peripheral edge portion. The handle 25 which is the rear edge part of the said ceiling surface part 13G is provided by leaving out and cutting out. The operation handle 26 is provided below the handle 25 in the lower surface of the rear side edge of the seat portion 13 and inside the recess 13F.

The operation handle 26 includes a pair of left and right engagement claws 27, a connecting rod 28 having a cross-sectional horizontal L-shape sandwiched between the front ends (between the front ends) of the left and right engagement claws 27, As an operation member, it has the round bar-shaped holding bar 29 pinched | interposed into the rear end part. The shaft 30 is provided in the front-end | tip part in one side surface (outer surface) of each engagement claw 27 in the said operation handle 26. As shown in FIG. The manipulation handle 26 is pivotally attached to the inside of the recess 13F at the lower surface of the rear edge of the seat portion 13 by the grip bar 29 around the shaft 30. Is attached to allow the handle 25 to approach or be spaced apart so as to rotate in the vertical direction (see FIGS. 7A and 7B). In addition, the gripping bar 29 is arranged in parallel with the handle 25 and does not protrude rearward from the rear edge of the seat portion 13.

A spring 31 is provided between the upper end surface of the rear end of the engaging claw 27 and the lower surface of the rear edge of the seat portion 13 and the ceiling surface portion 13G of the recess 13F. The spring 31 always biases the operation handle 26 in a direction (downward) in which the gripping bar 29 is separated from the handle 25. The operation handle 26 biased by the biasing force of the spring 31 engages the engagement claw 27 with the lock bar 20.

Here, the grip bar 29 is disposed so as not to protrude rearward from the rear edge of the seat portion 13, so that the user's body touches the grip bar 29 or uses a towel when the folding chair is used. Is prevented or the engagement of the engagement claw 27 and the lock bar 20 is accidentally released during use.

Moreover, since the said engaging claw 27 is made into a pair of right and left, and it is made to engage with two left and right places of the said lock bar 20, fixing of the said lock bar 20 by the said engaging claw 27 becomes reliable. .

The folding method of the folding chair 10 is demonstrated.

When folding the folding chair 10 of the present invention, the handle 25 and the gripping bar 29 of the rear edge of the seat portion 13 are gripped together with one hand to release the lock of the seat portion. Next, when the seat portion 13 is lifted with both the handle 25 and the gripping bar 29 held, the front leg portion 11 and the rear leg portion 12 approach each other. At this time, although the position of the handle 25 in the front-back direction of the folding chair 10 and the position of the center of the folding chair 10 are slightly shift | deviated, the front leg part 11 and the rear leg part 12 are respectively, respectively. The folding chair 10 is not tilted because it approaches while sliding on the floor in a grounded state. Further, when the seat portion 13 is lifted up, the front leg portion 11 and the rear leg portion 12 are completely approached, and the folding of the folding chair 10 is completed from the bottom.

When the folding chair 10 is in a folded state and the folding chair 10 is lifted by holding the handle 25 of the seat part 13, the position of the handle 25 in the front-back direction of the folding chair 10, Since the positions of the centers of the chairs 10 are set to coincide, the chairs 10 maintain the vertical state without tilting. Finally, the chair 10 can be made to stand alone only by standing the chair 10 in the folded state on the floor again.

As described above, the folding of the folding chair 10 holds the rear edge of the seat 13 and lifts it, and rotates the seat 13 so that the upper surface of the seat 13 is the front side. The front leg 11 and the rear leg 12 are completed by approaching each other.

7 (b) and 7 (c) are side cross sectional views enlarging rear edges of the sheet portion at the time of folding.

When the rear edge of the seat portion 13 is gripped when the folding chair 10 is folded, the grip 25 is disposed in parallel with the handle 25, so that the handle 25 The gripping bar 29 may be gripped together with the handle 25 to hold (see FIG. 7B). As a result, it is a natural operation to hold the handle 25, and the gripping bar 29 can be moved by applying force to the entire palm, so that even a person without grip, especially an elderly person or a physically handicapped person, operates the gripping bar 29. I can do it comfortably.

As described above, when the gripping bar 29 is gripped together with the handle 25, the operation handle 26 is entirely resistant to the biasing force of the spring 31 according to the movement of the gripping bar 29. The engagement between the engagement claw 27 and the lock bar 20 is released by rotating upward about the axis 30. At this time, since the left and right engagement claws 27 are connected to the connecting rod 28 and the gripping bar 29, the left and right engagement claws 27 interlock with each other by moving the gripping bars 29. It is possible to reliably perform the disengagement operation of the left and right engagement claws 27 with respect to the lock bar 20 at once.

Then, after the engagement claw 27 and the lock bar 20 are released, the user grips and lifts the rear edge of the seat portion 13 while holding the handle 25 (Fig. 7). (c)). By doing so, the link 24 moves the front leg portion 11 to approach the rear leg portion 12 in conjunction with the seat portion 13, and the rear leg portion 12 also moves to the front leg. The folding chair 10 is folded by moving to access the part 11.

In the folding method, the rear edge of the sheet portion 13 is gripped and lifted up with one hand without using both hands. That is, with respect to the movement of the front leg portion 11 and the rear leg portion 12, the front leg portion 11 and the rear leg portion 12 are connected to the rear edge of the seat portion 13. When grasped and lifted up, it hangs on the seat part 13 by the weight of each and moves naturally.

8 is a front view of the folding chair in a folded state, and FIG. 9 is a side view thereof.

In the folding chair 10, since the seat side frame part 16 and the seat support frame part 21 are pivotally attached in the middle part of the front-back direction, respectively, the front leg part 11 and the back side The leg part 12 is arrange | positioned so that it may line up in the front-back direction. For this reason, the folding chair 10 of a folded state can be made to stand by supporting by the front leg part 11 and the back leg part 12. As shown in FIG.

In addition, the folding chair 10 in a folded state is carried by holding the handle 25 of the seat portion 13. That is, in the folding chair 10 in the folded state, the front leg 11 or the rear leg 12 of the seat 25 from the handle 25 of the seat 13 is lifted compared to the case of lifting the back 14. Because the length to the bottom is short, the front leg 11 or the rear leg 12 is hard to reach the floor. Therefore, even if there is no force, especially an elderly person or a physically handicapped person, it is easy to lift the front leg part 11 or the rear leg part 12 so that it may not reach the floor, and for this reason, it is the front leg part 11 or the rear part. The problem that the side leg 12 is transported while being dragged to the floor is solved.

And the folding chair 10 is in the state in which the said sheet | seat part 13 was folded with the upper surface 13B as the front side. In the seat portion 13, the lower surface of the rotary sheet 13A, the link sheet 13C, the front support sheet 13D, the rear support sheet 13E, the operation handle 26, and the like are deteriorated. Various things to make are arranged. Various things that lower these external values are in a folded state with the upper surface 13B facing forward, so that when the folding chair 10 in the folded state is viewed from the front side, all of them are hidden, so that the external value can be improved.

In addition, the folding seat of this invention is not limited to the said embodiment, For example, even if the lock bar 20 is formed between the lower end of the backrest frame 17, or between the rear end of the left-right seat support frame part 21, do.

In addition, you may omit at least any one of the backrest 14 and the armrest 15, and comprise a folding chair.

In addition, the said holding | gripping bar 29 is not limited to what is arrange | positioned below upper surface 13B (sheet surface) of the sheet | seat part 13 as shown in embodiment, for example, as shown to FIG.10 (a), (b). You may arrange | position above a sheet surface as mentioned. In this configuration, the gripping bar 29 serving as an operation member is easily visually confirmed, and the gripping bar 29 is gripped even when the handle 25 is not provided in the seat 13. The folding chair 10 in a folded state can be transported by holding it.

In addition, the operation member in the folding chair of this invention is not limited to the holding bar 29 of the operation handle 26 as mentioned above, For example, the slide lever 26A as shown to FIG. 11 (a), (b). The tension bar 29A may be used. The tension bar 29A of the slide lever 26A is provided behind the engaging claw 27. In addition, the tension bar 29A slides backward of the folding chair 10 by inserting the slide shafts 30a provided on both sides of the slide lever 26A into the slide grooves 30b formed on the lower surface of the rear portion of the seat portion 13. It is configured to be mobile. One end of the spring 31 made of a tension spring is connected and fixed to the front end of the slide lever 26A, and the other end of the spring 31 is connected to and fixed to the lower surface of the seat portion 13. Then, as shown by the arrow in Fig. 11 (a) by pulling the tension bar 29A to the rear, the engagement claw 27 and the lock bar 20 is released to the folding chair 10 can be folded. With such a configuration, even when the handle 25 is not provided on the seat portion 13, the folding chair 10 in the folded state can be carried by holding the tension bar 29A of the slide lever 26A as a handle. have.

The tension bar 29A may be provided in front of the engaging claw 27 and may be attached to the front of the folding seat 10 at the lower surface of the front part of the seat 13. When the tension bar 29A is attached to the front portion of the seat portion 13 in this manner, the engagement of the engagement claw 27 and the lock bar 20 is released by pulling the tension bar 29A forward.

In addition, the operating member is not limited to a gripping form such as the gripping bar 29, or a pulling form such as a tension bar 29A, but a gripping form such as a handle or the like, or a bit such as a dial or a lever. Or a press type such as a switch or a button.

Moreover, operation members, such as the gripping bar 29 and the tension bar 29A, may be abbreviate | omitted, and the engagement claw 27 may be pressed with a finger, and it may be comprised so that engagement with the lock bar 20 may be cancelled | released.

In addition, the engaging claws 27 do not necessarily need to be provided in one pair of left and right, and only three in one of the left and right or in the middle of the left and right directions of the folding table, or three or more by installing one in the middle of the left and right pairs You may install it.

In place of the lock bar 20, a convex portion or a concave portion that can be engaged with the engaging claw 27 may be formed on the lower surface of the seat portion 13.

In addition, the spring 31 may use a plate-shaped thing other than the coil-shape shown, or may use the elastic material, such as synthetic rubber and an elastomer, as a spring instead of the spring 31. As shown in FIG. In addition, the spring 31 may be omitted.

In addition, in the folding chair 10, the link bar 18 is abbreviate | omitted, and the said link 24 is made of the link sheet 13C of the front part of the said sheet part 13, and the pair of the front left and right leg parts 11 of the left and right. It may be sandwiched between upper portions.

As shown in FIG. 12A, the recessed portion 13F may be formed so that the handle 25 is formed without cutting out the ceiling surface portion 13G of the recessed portion 13F. Alternatively, as shown in FIG. 12B, the recessed portion 13F may be formed, and the top surface portion 13G of the recessed portion 13F may be cut out without leaving the peripheral edge portion, and the handle 25 may be omitted.

Further, the lock bar 20 and the handle 25 are disposed at the front edge of the seat portion 13, and the engaging claw 27 and the grip bar 29 are disposed at the front portion of the seat portion 13, and the seat You may comprise so that the front edge of the said sheet | seat 13 may be rotated upwards so that the front edge of the part 13 may be pulled up.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the folding chair of embodiment.

2 is a rear view showing the folding seat of the embodiment.

It is a top view which shows the folding chair of embodiment.

It is a bottom view which shows the folding chair of embodiment.

It is a side view which shows the folding chair of embodiment.

It is a side sectional view which shows the folding chair of embodiment.

Fig.7 (a)-(c) is sectional drawing which shows the operation | movement at the time of folding of a folding chair.

8 is a front view showing a folding chair in a folded state.

9 is a side view illustrating the folding chair in a folded state.

(A), (b) is a side view which shows the folding chair of another embodiment.

(A), (b) is a side view which shows the folding chair of another embodiment.

(A), (b) is a side view which shows the folding chair of another embodiment.

(Explanation of symbols for the main parts of the drawing)

10: folding chair 11: the front leg

12: rear leg portion 13: seat portion

13B: Upper surface 16: Seat side frame part

17: back frame 18: link bar

20: lock bar 21: seat support frame portion

24: Link 25: Handle

27: engaging claw 28: connecting rod

29: grab bars

Claims (12)

A folding table comprising a pair of left and right front legs, a pair of left and right rear legs, and a seat portion that uses an upper surface as a seat surface in a state supported from below by these front and rear legs. as: In the seat portion, the rear leg portion is turned to the rear, and the rear edge of the seat portion is gripped and lifted up, the seat portion is rotated so that the upper surface of the sheet portion is the front side, and the front leg portion and the rear leg are lifted. A folding chair characterized by being able to fold the parts closer to each other and be able to stand on their own in a folded state. 2. A folding chair according to claim 1, wherein a link bar is sandwiched between an upper end portion of the pair of left and right front legs, and a link is sandwiched between the link bar and a front portion of the seat portion. 2. A folding chair according to claim 1, wherein a link is sandwiched between an upper portion of the pair of left and right front side legs and a front portion of the seat portion. The sheet side frame portion is bent backward from the upper end of the pair of left and right pairs of front leg portions, respectively, and the sheet portion is supported between the left and right sheet side frame portions. And a sheet support frame portion is bent forward at each of the upper left and right pairs of rear leg portions, and the front and rear ends of the sheet support frame portions are pivotally attached to the lower surface of the sheet portion, respectively, And a seat and the left and right seat side frame portions are pivotally attached to each other. The folding chair according to any one of claims 1 to 4, wherein a handle is provided at a rear end of the seat portion. 6. A folding chair according to claim 4 or 5, wherein a rear frame of a U-shape is bent upwardly so as to connect the left and right seat side frame parts at the rear end of the seat side frame part. The lock bar according to any one of claims 4 to 6, wherein the lock bar is disposed between the rear ends of the left and right seat side frame portions, between the rear ends of the left and right seat support frame portions or between the lower ends of the backrest frames. Sandwiched over, An engaging claw is disposed on the lower surface of the rear side of the seat portion, and the engaging claw is engaged with the lock bar by a biasing force of a spring. And fold back after releasing the engagement claw from the lock bar. 8. An operating member is provided at a rear end or a front end of the engaging claw, and the engaging claw is attached to be slidably movable relative to the seat on the lower surface of the seat. And the engagement claw slides by pulling the operation member backward or forward to release the engagement of the engagement claw and the lock bar. 8. An operating member is provided at a rear end or a front end of the engaging claw, and an upper end of the engaging claw is pivotally attached to a lower surface of the seat portion. And the engagement claw is rotated by lifting the operation member to release the engagement between the engagement claw and the lock bar. A handle according to claim 9, wherein a handle is provided at the rear edge or the front edge of the seat portion so as to have a positional relationship corresponding to the lock bar. And the grip claw is rotated by releasing the handle together with the manipulation member so that the engagement claw rotates to release the engagement of the locking claw and the lock bar. The lock bar and the handle are disposed at the rear side edge of the seat portion, and the engaging claw and the operation member are disposed at the rear portion of the bottom surface of the seat portion. In the same way as the direction of rotating the rear edge of the seat portion when folded, the direction of pulling the operation member close to the handle is upward, When the operation member is pulled closer to the handle, the engagement claw and the lock bar are released, and the operation member and the handle are pulled up to rotate the rear edge of the seat upward. Folding chair. The folding chair according to claim 10 or 11, wherein the operation member is formed in a rod shape and is disposed in parallel with the handle.

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