JP2011136101A - Stacking chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stacking chair, capable of vertical stacking and nesting, in which a number of chairs can be vertically stacked stably and by approaching each other to the utmost and in which the work of piling up and unloading of chairs in vertical stacking can be conducted readily. <P>SOLUTION: The stacking chair, capable of vertical stacking, includes: a supporting frame 1 where a pair of right and left supporting bodies 4 are connected by connecting rods 5 and 6; a seat 2 supported by the supporting frame; and a backrest part 3. The supporting body has a front leg rod 9 and a rear leg rod 10 opening downward at equal angle forward and backward; and an inclined rod 11 which is inclined diagonally upward to the rear direction from the upper end of the front leg rod. At the time of vertical stacking, the front leg rods and the rear leg rods of the upper chair and the lower chair join respectively, and an airspace S is formed between the inclined rods of the upper chair and the lower chair. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a stacking chair, and more particularly to a stacking chair capable of vertical stacking and nesting.

  Various stacking chairs capable of vertical stacking and nesting have been provided. Here, nesting refers to horizontal stacking of a plurality of chairs in the front-rear direction. Normally, a stacking chair is connected to a support frame made of metal pipes or metal rods so that the seat can be rotated up and down so that it can be used horizontally and in a flipped state. In addition, the nesting is performed with the seat part flipped up.

  For example, the chair described in Patent Document 1 has a frame structure in which the front leg heel and the backrest heel are the same straight heel, and the upper end of the straight heel is positioned outside and the upper end of the rear limb heel is fixed by a fixing member. The seat portion is held so as to be vertically rotatable with respect to the fixing member. When this chair is vertically stacked, the rear legs of the upper and lower chairs are joined together, the fixing member of the lower chair is in contact with the front leg of the upper chair, and the backrests of the upper and lower chairs are in contact with each other. It becomes a state.

  Therefore, the chair described in Patent Document 1 has a gap between the front leg rods of the upper and lower chairs in the vertical stacking state, and thus the height is increased when the chairs are stacked by the gap. Also, since the backrests of the upper and lower chairs are in contact with each other in the vertical stacking state, when a large number of chairs are stacked, a large load is applied to the backrests of the lower chairs, which may cause damage or damage. is there. Further, in the nesting state, the back side of the back portion of the front chair is in contact with the back side of the seat portion in the flipped-up state of the rear chair, and the left and right front leg folds of the rear chair are the left and right rear legs of the front chair. Although it is located between the ridges, if it is pushed from the front side or the rear side when moving in the front-rear direction, the contact is unstable, so it is impossible to maintain the linear alignment state.

Japanese Patent No. 412326

  Therefore, in view of the above-described situation, the present invention intends to solve the problem of stacking chairs capable of vertical stacking and nesting. The object is to provide a stacking chair that can be easily stacked and unloaded.

  In order to solve the above-described problem, the present invention provides a stacking structure that is capable of vertical stacking including a support frame in which a pair of left and right supports are connected by a connecting rod, and a seat portion and a backrest portion supported by the support frame. The chair has a front leg heel and a rear leg heel opened at an equal angle in the front and rear direction downward, and an inclined heel inclined obliquely upward from the upper end of the front leg heel to the vertical stacking. A stacking chair is characterized in that sometimes the front and rear legs of the upper and lower chairs are joined together and a gap is formed between the inclined legs of the upper and lower chairs (Claim 1).

  Further, a backrest heel is extended rearward and obliquely upward from the rear end of the inclined heel so that the inclination angle of the backrest heel is equal to or greater than the opening angle of the front leg heel and the rear leg heel, It is preferable to protrude and be fixed to the outside of the rear end portion of the inclined rod (Claim 2).

  Further, the seat portion is connected to the rear end portion of the seat frame so as to be pivotable up and down, and is in a horizontal use state and a flip-up state substantially parallel to the backrest portion. It is more preferable that the seat can be nested in the front-rear direction in a state where the seat is flipped up.

  The left and right support members connect the upper end portion of the front leg heel and the backrest heel with a front connection heel and a rear connection heel, respectively, and a part of the seat frame of the seat portion in a horizontal use state. It is also preferable that the front connecting rod is supported (claim 4).

  The stacking chair according to the first aspect of the present invention comprises a support frame in which a pair of left and right supports are connected by a connecting rod, and a vertical stacking having a seat portion and a backrest portion supported by the support frame. A stacking chair that is possible, wherein the support body has a front leg heel and a rear leg heel opened at an equal angle in the front and rear direction downward, and an inclined heel inclined obliquely upward from the upper end of the front leg heel to the rear. When the vertical stacking is performed, the front and rear legs of the upper and lower chairs are joined to each other and a gap is formed between the upper and lower chairs. Easy and can be stacked or unloaded with an inclined rod during vertical stacking, making work easier and without having to pinch your fingers between the upper and lower inclined rods when stacking Further, since the front leg 杆同 mechanic and rear leg 杆同 mechanic vertical chair during vertical stacking is joined respectively, can be stacked stably.

  According to claim 2, a backrest heel is extended obliquely upward and rearward from the rear end of the inclined heel, and the inclination angle of the backrest heel is equal to or greater than the opening angle of the front leg heel and the rear leg heel, Since the rear leg ridges are fixed to the outside of the rear end portion of the inclined heel, a large number of chairs can be vertically stacked with a reduced height.

  According to a third aspect of the present invention, the seat portion is connected to the rear end portion of the seat frame so as to be pivotable up and down, and is substantially parallel to the horizontal use state and the backrest portion. Since it is possible to take the state of being flipped up and the seat portion can be nested in the front-rear direction in the state of being lifted up, it is possible to select a storage form of vertical stacking and nesting as required.

  According to a fourth aspect of the present invention, the left and right support members are connected to each other between the upper end portion of the front leg heel and the backrest heel by a front connection heel and a rear connection heel, respectively, and the seat of the seat portion in a horizontal use state. Since a part of the frame is mounted on the front connecting rod, even if the front connecting rod is connected to a height that does not interfere when nesting with the seat part flipped up, a part of the seat frame The seat can be stably supported in a horizontal use state by mounting it on the front connecting rod.

In the stacking chair according to the present invention, it is a perspective view in which a seat portion is partially used and is partially omitted. It is an abbreviated side view of a stacking chair. It is a side view for description which shows the horizontal use state and the flip-up state of a seat part. It is an abbreviated perspective view of the raised state of the seat. It is an abbreviated side view showing a state where vertical stacking is performed. It is an abbreviated perspective view which similarly shows the state which carried out the vertical stacking. It is an abbreviated side view of a state where several upper chairs are lifted out of a number of vertically stacked chairs. It is an abbreviated side view showing a state of nesting. It is an abbreviated perspective view which similarly shows the state of nesting. It is the perspective view which abbreviate | omitted a part which shows the stacking chair of other embodiment.

  Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. 1 to 4 show a typical embodiment of a stacking chair according to the present invention, FIGS. 5 to 7 show a vertical stacking state, FIGS. 8 and 9 show a nesting state, and in FIG. Is a seat part, 3 is a backrest part, 4 is a support, 5 is a front connection rod, 6 is a rear connection rod, 7 is a seat frame, and 8 is a caster. 3 to 9, the structure of the seat portion 2 and the backrest portion 3 is omitted.

  The stacking chair according to the present embodiment has a basic structure capable of vertical stacking and nesting by holding a seat portion 2 on a metal support frame so as to be rotatable up and down and a backrest portion 3 fixedly. Have.

  More specifically, the stacking chair includes a support frame 1 in which a pair of left and right supports 4 and 4 are connected by connecting rods 5 and 6, and a seat 2 and a backrest 3 that are supported by the support frame 1. A stacking chair capable of vertical stacking, wherein the support body 4 has a front leg rod 9 and a rear leg rod 10 opened at an equal angle in the front and rear direction downward, and obliquely upward from the upper end of the front leg rod 9 to the rear. In the vertical stacking, the front leg rods 9 and 9 of the upper and lower chairs and the rear leg rods 10 and 10 are joined to each other, and there is a gap between the upper and lower chair inclined rods 11 and 11. S is formed.

  Specifically, the support body 4 is composed of two flat metal rods, and extends an inclined rod 11 inclined obliquely upward from the upper end of the front leg rod 9 to the rear. A backrest 12 is extended obliquely upward and rearward from the rear end, and the upper end of the rear leg 10 is projected and fixed to the outside of the rear end of the inclined ridge 11. The inclination angle of the backrest heel 12 is set to be equal to or greater than the opening angle of the front leg heel 9 and the rear leg heel 10. Here, FIG. 2 shows the opening angle A of the front leg collar 9, the opening angle B of the rear leg collar 10, and the inclination angle C of the backrest collar 12 as angles with respect to the vertical line. The aforementioned angular relationship is represented by A = B and A (or B) ≦ C. If nesting is not required only by vertical stacking, the upper end portion of the rear leg rod 10 does not need to protrude and be fixed to the outside of the rear end portion of the inclined rod 11, and has the same width as the front leg rod 9. In this case, the backrest heel 12 needs to be located inside the rear leg heel 10. In addition, the backrest heel 12 is integrated with the front leg heel 9, but may be a separate body.

  The left and right supports 4, 4 are connected to each other between the upper end portions of the front leg rods 9, 9 and the backrest rods 12, 12 by the front connecting rod 5 and the rear connecting rod 6, respectively, and have a strong rigidity. I'm waiting. In the stacking chair of this embodiment, the lower end of the front leg collar 9 is bent forward, the caster 8 is provided below the bent part, and the lower end of the rear leg collar 10 is also bent rearward, and the bent part. A caster 8 is provided below the frame to enable movement.

  As shown in FIGS. 3 and 4, the seat portion 2 has a rear end portion of the seat frame 7 located on the inner side of the support body 4 so as to be pivotable up and down. It is possible to take a state of being flipped up substantially parallel to the bent portion, and the seat portion can be nested back and forth in the state of being flipped up. Specifically, the seat frame 7 has a substantially H shape in a plan view in which front and rear intermediate positions of a pair of left and right seat support rods 13 and 13 are coupled by a seat coupling rod 14, and rear portions of the seat support rods 13 and 13. Are arranged inside the rear ends of the inclined rods 11 and 11 of the supports 4 and 4 and are pivotally connected by pivots 15 and 15. That is, the pivot 15 is provided in the vicinity where the inclined rod 11 and the rear leg rod 10 intersect. Then, a part of the seat frame 7, specifically, the seat connecting rod 14 slightly protruding downward is mounted on the front connecting rod 5, and the seat portion 2 is held in a horizontal use state.

  And the seat part 2 is comprised by extending | stretching the sheet | seat body 16 with a cushioning property thinly to the said seat frame 7. FIG. Similarly, the backrest portion 3 is configured by stretching a thin cushion body 17 on the back frame formed by the backrest ridges 12 and 12 and the rear connecting heel 6 on both sides. Here, although it is preferable to use a sling sheet as the sheet bodies 16 and 17, it is not particularly limited.

  As shown in FIGS. 5 and 6, the stacking chair configured as described above can be vertically stacked while suppressing the height. In the vertical stacking state, the seat portion 2 is used in a horizontal state, and the lower part of the front leg rod 9 and the rear leg rod 10 of the upper chair are stacked in a joined state on the upper portion of the front leg rod 9 and the rear leg rod 10 of the lower chair. It is possible. When the seat body 17 does not protrude forward from the backrest 12 in the vertical stacking state, the backrests 12 and 12 of the upper and lower chairs are in direct contact with each other, but the end of the seat body 17 is the back. When located in front of the curled heel 12, the back heels 12, 12 of the upper and lower chairs are joined to each other through the end of the seat body 17. In that case, by setting the inclination angle C of the backrest 12 to be slightly larger than the opening angle A of the front leg 9, the backrest portions 3, 3 of the upper and lower chairs are prevented from contacting in the vertical stacking state. It is also possible. In any case, since the front leg rods 9 and 9 and the rear leg rods 10 and 10 of the upper and lower chairs are joined together, they can be stacked stably.

  As shown in FIGS. 5 to 6, when a large number of chairs are vertically stacked, a gap S is formed between the inclined rod 11 of the lower chair and the inclined rod 11 of the upper chair. The inclined rods 11, 11 present on the left and right sides are easy to hold from the front side of the chair, and the work of stacking and unloading the chair becomes easy. When stacking, since the gap S exists, there is no fear that a finger may be caught between the inclined chairs 11 of the lower chair, and when the upper chairs are lowered together from the stacked state, the inclined basket 11 , 11 can be easily lifted. As shown in FIG. 7, when taking out a plurality of legs of a vertically stacked chair stacked vertically, hold the right and left inclined rods 11, 11 of the desired chair and lift it upward and diagonally forward along the inclination of the rear leg rod 10. The operation is very natural.

  Further, as shown in FIGS. 8 and 9, the stacking chair can horizontally stack a plurality of legs, that is, can be nested. Here, the front connecting rod 5 is. It is set at a position lower than the lower end of the seat portion 2 in the flipped-up state. When nesting is performed, the seat portion 2 is in a state of being flipped up substantially parallel to the backrest portion 3, and between the left and right rear leg rods 10, 10 of the front chair. The front leg rods 9 and 9 are inserted, and the upper portion of the inclined chair 11 of the rear chair is in contact with the lower portion of the inclined chair 11 of the front chair. In this case, since the inclination angle of the inclined rod 11 cannot be increased in principle, the stacking interval before and after nesting is slightly wider than the vertical stacking interval between the upper and lower sides. Even if the heel 14 protrudes forward, it can be prevented from coming into strong contact with the backrest portion 3 of the front chair. And when moving a large number of chairs together in the nesting state in the anteroposterior direction, if they are pushed from the front side or the rear side, the tilting rods 11, 11 of the front and back chairs are in contact on both the left and right sides, so that the force is Since it is transmitted through the inclined rod 11, it can be moved while maintaining a stable series posture.

  FIG. 10 shows a stacking chair according to another embodiment. This stacking chair is an example in which the thickness is reduced so that the backrest 3 does not become a neck for pitch reduction during stacking. In other words, the support body 4 made of a flat metal heel is oriented such that the front leg heel 9 and the inclined heel 11 face a small dimension front and back, and the backrest ridge 12 faces the small dimension side to the left and right. It was produced by twisting 90 degrees in the middle. In the illustrated example, a twisted portion 18 is provided in the vicinity of the boundary between the inclined ridge 11 and the backrest ridge 12. By configuring the support body 4 in this manner, the thickness before and after the backrest portion 3 can be reduced, and the stacking efficiency can be maximized. In addition, without providing the twisted portion 18, the depth angle of the backrest 12 is made smaller than that of the front leg 9 and the rear leg 10, so that the inclination angle of the backrest 12 is changed to the front leg 9. Even if it is slightly smaller than the opening angle of the rear leg rod 10, there is a possibility that it is acceptable. Since other configurations are the same as those of the above-described embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

  Further, in vertical stacking and nesting, a cushioning material may be provided at a place where the chairs come into contact with each other or interfere with each other to prevent scratches and rattling.

1 support frame,
2 seats,
3 Backrest,
4 support,
5 Previous connecting rod,
6 Rear connecting rod,
7 seat frame,
8 casters,
9 Forefoot rod,
10 hind legs,
11 Inclined fence,
12 Backrest,
13 Seat support rod,
14 seat connection rod,
15 Axis,
16 sheet body,
17 sheet body,
18 Twisted part,
S Clearance.

Claims (4)

  A stacking chair capable of vertical stacking comprising a support frame in which a pair of left and right supports are connected by a connecting rod, and a seat and a backrest supported by the support frame, the support being directed downward The front legs and rear legs are opened at equal angles in the front and rear direction, and the front legs are inclined diagonally upward from the upper end of the front legs. The stacking chair is characterized in that the two are joined to each other and a gap is formed between the inclined ridges of the upper and lower chairs.   A backrest heel is extended obliquely upward and rearward from the rear end of the inclined heel so that the inclination angle of the backrest heel is equal to or greater than the opening angle of the front leg heel and the rear heel heel, and the rear leg heel is the inclined heel. The stacking chair according to claim 1, wherein the stacking chair projects and is fixed to the outside of the rear end portion.   The seat portion is connected to the rear end portion of the seat frame so as to be able to rotate up and down while being positioned inside the support body, and can take a horizontal use state and a flip-up state substantially parallel to the backrest portion. The stacking chair according to claim 1 or 2, wherein the stacking chair is capable of nesting back and forth in a state where the seat portion is flipped up. The left and right support bodies connect the upper end portion of the front leg heel and the backrest heel with a front linking heel and a rear linking heel, respectively, and a part of the seat frame of the seat portion in a horizontal use state. The stacking chair according to claim 3, wherein the stacking chair is mounted on a connecting rod.

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