JP2017086364A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair being applicable to a model having no core material in an outer and, even when an inner is slightly elastically deformed when lifting the chair upward, preventing the inner from falling off the outer.SOLUTION: A chair 1 includes: a seat part 3 that includes an inner 10 including a locking piece bent in a fitting direction and having a locking hole, an outer 20 including a fitting part fitted with the locking piece at a fitting-directional front side with respect to the locking hole and an exposure hole for exposing the locking hole, and a locking tool to be inserted into the locking hole; frames 2 for supporting the outer 20; a backrest 2A supported by the frames 2; and leg parts for supporting the frames 2.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a chair.

  The seat of a conventional chair, especially a chair that can be nested by standing up and stacking in the front-rear direction, is attached to the frame, the backrest supported by the frame, the legs supporting the frame, and the frame And an inner attached to the outer together with the cushion.

  The inner has a plurality of ribs and a stopper. The rib is disposed near the front edge of the chair and near the rear edge of the chair, and bends from the front direction of the chair to the rear direction on the surface facing the outer. The stopper is provided substantially perpendicular to the surface facing the outer, with a predetermined gap from the rib near the front edge of the chair. An outer has a fitting part fitted with a rib, and a pipe-shaped core material (for example, patent document 1).

  When the inner is attached to the outer, the inner is slid from the front to the rear of the chair to fit the rib and the fitting portion. Then, the inner is elastically deformed to bring the stopper to the outside of the core material, and is fitted into the outer so that the stopper contacts the core material.

  When fitted in this way, vertical and horizontal displacements and forward displacement are regulated by ribs and fitting, and backward displacement is regulated by a stopper.

  However, since the fixing with the stopper is based on the premise that there is a core material, such a configuration cannot be applied to a chair without a core material. Further, when the chair is lifted upward, the stopper may come off from the core material when the inner elastically deforms, and therefore the inner may come off from the outer.

JP 2009-106422 A

  The problem to be solved by the present invention is to provide a chair that can be applied to a model without a core material in the outer, and the inner does not come out of the outer even if the inner is slightly elastically deformed when the chair is lifted upward. is there.

  In order to solve the above-mentioned problems, a chair according to the present invention includes an inner member that is bent in a fitting direction and includes a locking piece having a locking hole, and a front side in the fitting direction from the locking piece and the locking hole. A fitting portion to be fitted in and an outer portion having an exposure hole for exposing the locking hole, a seat portion provided with a locking tool inserted into the locking hole, a frame supporting the outer, and the frame. A backrest that is supported; and legs that support the frame.

  According to the present invention, the present invention can be applied to a model in which the outer core does not have a core material, and can provide a chair in which the inner does not come out of the outer even when the inner is slightly elastically deformed when the chair is lifted upward. is there.

The front perspective view of a chair. The back perspective view of a chair. The bottom view of a chair. The top perspective view of an outer. The bottom perspective view of an inner. The enlarged view of the part of A in FIG. The top view of a back fitting part. CC sectional drawing in FIG. 6 of a back fitting part. The enlarged view of the part of B in FIG. The top view of a back rib. DD line sectional drawing in FIG. 9 of a back rib. The bottom view near the rear rib when the inner is attached to the outer. The EE sectional view taken on the line in FIG. The figure which shows a mode that the seat part was flipped up toward the back of a chair. The figure which stored several chairs piled up in the direction of order.

  Hereinafter, an embodiment of a chair 1 according to the present invention will be described with reference to the drawings. In the present embodiment, a chair that can be nested and can be stowed up and stowed up and stored in the front-rear direction will be described as an example. However, the present invention can also be applied to a chair that does not jump up. Hereinafter, the front when seated is simply referred to as the front, and the rear when seated is simply referred to as the rear.

  1 is a front perspective view of the chair 1, FIG. 2 is a rear perspective view of the chair 1, and FIG. 3 is a bottom view of the chair 1. As shown in FIGS. 1 to 3, the chair 1 includes a backrest 2 </ b> A, a frame 2 that supports the backrest 2 </ b> A from both sides, a plurality of legs attached to the frame 2, and a seat 3.

  The leg portion includes two rear leg portions 2B extending from the frame 2 in the diagonally rear floor direction, and two front leg portions 2C extending from the frame 2 in the diagonally forward floor surface direction. One caster 4 is attached to each of the rear leg 2B and the front leg 2C in the floor direction. The frame 2 is connected to a support member 5 extending in the lateral direction.

  The seat portion 3 includes an outer 20 that is rotatably attached to the frame 2, and an inner 10 that is attached to the outer 20.

  The outer 20 has a first through hole 27 at the center and a receiving portion 26 that receives the support member 5 at a position corresponding to the support member 5. The outer 20 that rotates downward from the flip-up position is prevented from rotating when the receiving portion 26 contacts the support member 5, and the outer 20 is positioned in the sitting position.

  The inner 10 includes a cushion (not shown) and an inner shell 11 that supports the cushion. The cushion is attached to the inner shell 11 by a purse-like cloth cover 11A.

  FIG. 4 is a plan perspective view of the outer 20. As shown in FIG. 4, the outer 20 includes an outer shell 21 that goes around the first through hole 27 and a receiving portion 26 that is provided at a position corresponding to the support member 5 of the outer shell 21.

  The outer shell 21 surrounds the first through-hole 27 and connects the wall portion 21A rising vertically, the base plate 21B extending obliquely upward from the lower end of the wall portion 21A, and the wall portion 21A and the base plate 21B. 21C. The support plate 21 </ b> C increases the rigidity of the outer shell 21. The outer shell 21 is made of a synthetic resin.

  The outer shell 21 includes a total of three front fitting portions 22 on the left, right, and center portions in front of the chair 1. The front fitting portion 22 has a horizontally long front fitting hole 22A.

  The outer shell 21 includes a pair of rear fitting portions 23 provided on both sides in the width direction on the rear side of the chair 1. The rear fitting portion 23 has a horizontally long rear fitting hole 25. The outer shell 21 has a second through hole 24 at a position corresponding to the rear fitting portion 23.

  FIG. 5 is a bottom perspective view of the inner 10. As shown in FIG. 5, the inner 10 includes a cloth cover 11A that wraps the cushion inside, and an inner shell 11 that supports the cushion from below the chair.

  The inner shell 11 includes a plurality of slits 11 </ b> B disposed in the central portion, a front rib 13 provided on the front side of the chair 1, and a rear rib 15 that is a locking piece provided on the rear side of the chair 1. .

  The front rib 13 extends perpendicularly to the surface of the inner shell 11 that faces the outer 20 and bends forward from the back of the chair 1 in the first direction. Therefore, the front rib 13 has an L-shaped cross section. A total of three front ribs 13 are provided at positions corresponding to the front fitting holes 22A. The width W1 of the front rib 13 has a width that fits in the front fitting hole 22A without rattling.

  The rear rib 15 extends perpendicularly to the surface of the inner shell 11 facing the outer 20 and bends from the rear of the chair 1 in the same direction as the first direction, that is, in the fitting direction. Accordingly, the rear rib 15 has an L-shaped cross section. A total of two rear ribs 15 are provided at positions corresponding to the rear fitting holes 25. The width W2 of the rear rib 15 has a width that fits into the rear fitting hole 25 without rattling.

  6 is an enlarged view of a portion A in FIG. 4, and FIG. 7 is a plan view of the rear fitting portion 23. 8 is a cross-sectional view of the rear fitting portion 23 taken along the line CC in FIG. As shown in FIGS. 6 to 8, the rear fitting portion 23 is arranged so as to straddle the second through hole 24. The rear fitting hole 25 communicates with the second through hole 24. The width of the rear fitting hole 25 is substantially equal to the width of the second through hole 24. The base plate 21B in the vicinity of the rear fitting portion 23 is provided with a groove portion 28 in which the size and shape of the rear rib 15 are substantially equal.

  9 is an enlarged view of a portion B in FIG. 5, and FIG. 10 is a plan view of the rear rib 15. 11 is a cross-sectional view of the rear rib 15 taken along the line DD in FIG. As shown in FIGS. 9 to 11, the rear rib 15 has a pin hole 16 that is a locking hole that penetrates the rear rib 15 in the thickness direction at the center.

  The inner shell 11 has a pedestal portion 17 that protrudes in the direction of the rear rib 15 with a gap corresponding to the thickness of the rear fitting portion 23 between the rear rib 15 at a position corresponding to the pin hole 16. The pedestal portion 17 has a pin insertion hole 18 that penetrates the inner shell 11 in the thickness direction at a position corresponding to the pin hole 16. A hole 19 that penetrates the inner shell 11 in the thickness direction is provided below the rear rib 15 of the inner shell 11.

  FIG. 12 is a bottom view of the vicinity of the rear rib 15 when the inner 10 is attached to the outer 20. FIG. 13 is a cross-sectional view taken along the line EE with the inner portion 10 on the portion F in FIG. As shown in FIGS. 12 and 13, the inner 10 is slid from the rear toward the front toward the chair 1, and the front rib 13 is fitted into the front fitting hole 22A and the rear rib 15 is fitted into the rear fitting hole 25, respectively. Combined and attached. When attached in this way, the rear fitting portion 23 is located on the back side of the rear rib 15 from the pin hole 16, that is, on the back side of the chair 1 from the pin hole 16. The rear fitting portion 23 which is a fitting portion is fitted on the front side in the fitting direction from the rear rib 15 which is a locking piece and the pin hole 16 which is a locking hole, that is, on the back side behind the chair 1.

  In this state, the rear rib 15 is exposed from the second through hole 24 which is an exposure hole from the bottom surface of the outer 20. A locking tool such as a pin 30 is inserted into the pin hole 16 of the exposed rear rib 15 and the pin insertion hole 18 provided at a position corresponding to the pin hole 16. When the pin 30 is inserted, the pin hole 16 is disposed at a position where the pin 30 comes into contact with the rear fitting portion 23 without rattling.

  Therefore, the movement of the inner 10 in the rear direction of the chair 1, which is the second direction opposite to the first direction, is restricted by the pin 30. And the front rib 13 bent in the front direction of the chair 1, which is the first direction, and the front fitting portion 22 fitted to the front rib 13 in the vertical and width directions without rattling, the first direction is the same direction. The chair 1 that is in the up-down direction, the width direction, that is, the left-right direction, and the first direction by the rear rib 15 bent to the right and the rear fitting portion 23 fitted to the rear rib 15 without backlash in the vertical and width directions. The movement of the inner 10 in the forward direction is restricted.

  Here, the chair 1 usually has the weakest force applied backward. Therefore, it is desirable that the second direction, which is the direction of movement of the inner 10 regulated by the pin 30, is the rearward direction of the chair 1.

  FIG. 14 is a view showing a state in which the seat portion 3 is flipped up toward the back of the chair 1, and FIG. 15 is a view in which so-called nesting is performed in which a plurality of chairs 1 are stacked and stored in the front-rear direction. The chair 1 of this embodiment can be applied to a chair that can be nested in this way.

  Chairs that can be nested often do not have a core due to the need to simplify the structure. Therefore, the chair of this embodiment that does not require a core material for attaching the inner 10 to the outer 20 is suitable for such a nestable chair.

  In addition, the relationship between the inner 10 and the outer 20 described above may be reversed. In other words, the chair 1 is fitted in the fitting direction, for example, the outer 20 including the rear rib 15 which is a locking piece bent from the rear to the front and having the pin hole 16 which is the locking hole, the locking piece and the locking hole. A seat portion 3 including a fitting portion that is fitted on the near side in the mating direction and an inner 10 having a second through hole 24 that is an exposed hole that exposes the locking hole, and a locking tool that is inserted through the locking hole. And a frame 2 that supports the outer 20, a backrest 2 </ b> A that is supported by the frame 2, and leg portions that support the frame 2.

  As described above, the chair 1 of the present embodiment is bent in the fitting direction, for example, from the rear to the front, and includes the inner rib 10 that includes the rear rib 15 that is the locking piece having the pin hole 16 that is the locking hole. The outer portion 20 having the fitting portion fitted on the near side in the fitting direction from the stopper piece and the engaging hole, the second through hole 24 that exposes the engaging hole, and the engaging hole are inserted. The seat part 3 provided with a locking tool, the frame 2 that supports the outer 20, the backrest 2 </ b> A supported by the frame 2, and the leg parts that support the frame 2 are provided.

  In order to fix the inner 10 to the outer 20, three types of means are required: (1) forward / backward displacement prevention means, (2) left / right deviation prevention means, and (3) vertical separation prevention means. In the chair 1 of the present embodiment, the locking pieces (the front rib 13 and the rear rib 15) are fitted so as to prevent either the forward or backward displacement of the inner 10 from the outer 20 and the vertical separation. It engages with the joint part (front fitting part 22, rear fitting part 23), and functions as (1) forward / backward displacement prevention means and (3) vertical separation prevention means. The locking pieces (the front rib 13 and the rear rib 15) are formed with the widths of the fitting portions (the front fitting portion 22 and the rear fitting portion 23) so as to prevent the inner 10 from shifting in the left-right direction with respect to the outer 20. It has a corresponding width and (2) functions as a left-right shift prevention means. Further, the locking tool (pin 30) is inserted into the locking holes (pin hole 16, pin insertion hole 18) so as to prevent the other of the inner 10 from shifting in the forward or backward direction with respect to the outer 20, (1) It functions as a means for preventing longitudinal displacement.

  Therefore, the present invention can be applied to a model in which the outer core does not have a core material, and there is an effect that it is possible to provide a chair in which the inner does not come out of the outer even when the inner is slightly elastically deformed when the chair is lifted upward.

DESCRIPTION OF SYMBOLS 1 Chair 2 Frame 2B Back leg part 2C Front leg part 3 Seat part 4 Caster 5 Support member 10 Inner 11 Inner shell 11A Cloth cover 11B Slit 13 Front rib 15 Back rib 16 Pin hole 17 Base part 18 Pin insertion hole 19 Hole 20 Outer 21 outer shell 21A wall portion 21B base plate 21C support plate 22 front fitting portion 22A front fitting hole 23 rear fitting portion 24 second through hole 25 rear fitting hole 26 receiving portion 27 first through hole 28 groove portion 30 pin

Claims (7)

Inner provided with a locking piece that is bent in the fitting direction and has a locking hole, the fitting part that fits on the near side in the fitting direction from the locking piece and the locking hole, and the locking hole are exposed. An outer portion having an exposed hole, and a seat portion including a locking tool inserted through the locking hole;
A frame that supports the outer;
A backrest supported by the frame;
Legs supporting the frame;
A chair equipped with. The locking piece is
Engage with the fitting portion to prevent any deviation in the front direction or the rear direction with respect to the outer of the inner and the separation in the vertical direction,
Having a width corresponding to the width of the fitting portion so as to prevent a lateral shift with respect to the outer of the inner,
The locking tool is
The chair according to claim 1, wherein the chair is inserted into the locking hole so as to prevent any other shift in the front direction or the rear direction with respect to the outer of the inner. The fitting direction is the front direction of the chair;
The inner is
The chair according to claim 1 or 2, wherein the chair is attached to the outer by being moved from the rear direction toward the front direction. The outer is
Supported rotatably on the frame,
The chair according to claim 3, wherein the outer can be stowed back and forth when the outer is flipped back and rear. The locking piece is
The chair of Claim 4 arrange | positioned at the back side of the said outer. The locking piece is
A pair is provided on both sides in the width direction of the outer,
The fitting portion and the exposure hole are
The chair according to claim 5, which is provided at a position corresponding to the locking piece of the inner. An outer portion that is bent in the fitting direction and includes a locking piece having a locking hole, the fitting portion that fits on the near side in the fitting direction from the locking piece and the locking hole, and the locking hole are exposed. An inner portion having an exposed hole, and a seat portion including a locking tool inserted through the locking hole;
A frame that supports the outer;
A backrest supported by the frame;
Legs supporting the frame;
A chair equipped with.

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