JP2008161401A - Chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair having a structure securing the stable support and strength retention of cushioning members by fixing support members for supporting the cushioning members at a plurality of horizontal parts of leg bodies. <P>SOLUTION: The leg bodies 13 are attached on the lower surface side of a seat part 11, and the leg body 13 is provided with the horizontal part 16 positioned on the lower surface side of the seat part 11. The cushioning members 21 composed of rubber or the like are attached to the horizontal parts 16 via the support members 20. The support member 20 has a first flat face part 23 for supporting the cushioning member 21 by a wide area, and a second flat face part 25 provided continuously to the first flat face part 23 via an intermediate member 24 in such a manner that the height of the face position is different therefrom. The respective side end parts of the first flat face part 23 and the second flat face part 25 are connected to the outer circumferences of the horizontal parts 16 by a method such as welding, and the second flat face part 25 is fixed to the lower face of the seat part 11 via screws 26. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a chair, and more particularly, to a chair that can stably support a buffer member positioned on the lower surface side of a chair that can be stacked.

  2. Description of the Related Art Conventionally, a chair that can be stacked up and down in a state where seats are substantially parallel to each other is known. This type of chair generally has a structure in which a buffer member is attached to a horizontal portion made of a pipe material or the like located on the lower surface side of the seat portion, so that the seat portion can be prevented from being damaged when stacked. (For example, refer to Patent Document 1).

JP 2004-180907 A

  However, in the chair of patent document 1, it becomes the structure by which a buffer member is directly attached to a horizontal part via a screw. Therefore, for example, in the case where the cross section of the horizontal portion is constituted by a pipe having a substantially circular shape, it is difficult not only to stably support but also the rigidity when an external force such as torsion is applied is poor. There is an inconvenience.

[Object of invention]
The present invention has been devised by paying attention to such inconveniences. The purpose of the present invention is to use a support member that supports the buffer member on a flat surface, and to fix the support member to the horizontal portion at a plurality of locations. Thus, an object of the present invention is to provide a chair having a structure that ensures stable support and strength maintenance of the buffer member.

To achieve the above object, the present invention is located on a lower surface side of a seat portion, a leg body provided on the lower surface side of the seat portion and including a horizontal portion along the lower surface of the seat portion, and the seat portion. In a chair provided with a buffer member,
A support member that supports the buffer member, and the support member is connected to the first flat surface portion that supports the buffer member in a state in which the height position is different from the first flat surface portion via an intermediate member. A second plane portion formed,
The first plane part and the second plane part are connected to the horizontal part, respectively.

  In the present invention, the second flat surface portion may be configured to be coupled to the seat portion.

  Moreover, it is preferable to take the structure that the side end of the said intermediate member is provided in the shape which receives a part of said horizontal part.

  According to the present invention, the support member has the first and second plane portions, the buffer member is supported by the first plane portion, and each plane portion is connected to the horizontal portion. Thus, the support member is kept in a stable state with respect to the horizontal portion. In addition, since the buffer member can be firmly supported, sufficient durability can be maintained not only against the external force in the vertical direction but also against the external force such as a twist in the horizontal direction.

  Moreover, when it is set as the structure by which the said 2nd plane part is connected also to a seat part, it will be in what is called a three-point support state, and the attachment strength of a plane part can be raised further.

  Furthermore, if the side end of the intermediate member located between the first and second flat portions is shaped to receive a part of the horizontal portion, positioning when connecting the support member to the horizontal portion is easy and It becomes possible to perform quickly, and the positional accuracy at the time of connecting a 2nd plane part to a seat part can be kept favorable.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 show a front view and a right side view of the chair according to the present embodiment, and FIG. 3 shows a schematic perspective view of the chair inverted. In these drawings, the chair 10 includes a seat portion 11 having a substantially square shape in plan view, a back portion 12 positioned on the rear end side of the seat portion 11, and a leg body 13 provided on the lower surface side of the seat portion 11. It is prepared for. Although the seat part 11 and the back part 12 in this embodiment are made into an integral structure, these seat parts 11 and the back part 12 are good also as a structure mutually connected as a separate body.

  The leg 13 is composed of a pair of leg units 15 as shown in FIG. These leg units 15 are symmetrical with each other, and are each made of a pipe material. Each leg unit 15 includes a horizontal portion 16 having a substantially U-shape in plan view and a leg portion 17 connected to both ends of the horizontal portion 16. The horizontal portion 16 is provided substantially in parallel with each other, and the bent portions 16A and 16A connected to the leg portion 17 are located between the end portions of the bent portions 16A and the center crossing the lower surface side center of the seat portion 11 Central portions 16B and 16B, which are composed of a portion 16B and are arranged symmetrically with each other, are connected via means such as welding. Moreover, the leg part 17 is extended in the direction inclined so that the separation distance with the adjacent leg part 17 may become large as it goes to the front-end | tip (upper end in FIG. 3), Thereby, stacking of the chair 10 is attained. .

  A buffer member 21 is provided on the horizontal portion 16 via a support member 20. The support members 20 are respectively connected to the bent portions 16A. In the present embodiment, the support members 20 are arranged in the vicinity of each corner 0 of the seat portion 11 and are provided at a total of four locations. As shown in FIGS. 4 to 6, the support member 20 has a first flat portion 23 that supports the buffer member 21, and a height position through the intermediate member 24 to the first flat portion 23. It consists of the 2nd plane part 25 connected in a different state. The first flat surface portion 23 and the second flat surface portion 25 are provided in a substantially rectangular plate shape in plan view, and are located in a plane substantially parallel to each other, and their side end portions are bent at the bent portion 16A. The support member 20 is connected at two locations in the circumferential direction of the bent portion 16A. Here, as shown in FIG. 6, a screw hole 23 </ b> A for fixing the buffer member 21 is formed in the central region of the first plane portion 23, while the second plane portion 25 has A hole 25A for fixing the second flat portion 25 to the lower surface side of the seat portion 11 with a screw 26 is formed in the central region.

  The intermediate member 24 is oriented in a direction substantially orthogonal to the surfaces of the first and second flat portions 23 and 25 so as to form a substantially crank shape when the support member 20 is viewed from the side end. It has become. The side end of the intermediate member 24 has a gentle arc shape, and is provided with a recess 24 </ b> A that has the smallest left-right width at the center in the height direction of the intermediate member 24. The curvature of the concave portion 24A substantially corresponds to the curvature of the pipe constituting the horizontal portion 16, so that the horizontal portion 16, that is, the bent portion 16A can be received in the concave portion 24A. Here, the height H (see FIG. 6) of the support member 20 is not particularly limited, but is provided at a height that substantially corresponds to the diameter of the pipe material constituting the leg 13.

  The buffer member 21 is made of a cushioning material such as rubber. As shown in FIGS. 4 to 6, the buffer member 21 includes a substantially circular mounting surface 30 that contacts the first flat surface portion 23, a tapered portion 31 that is reduced in diameter toward the upper side in FIG. The mounting surface 35 includes an end surface 33 facing the mounting surface 30, and a mounting hole 35 for the buffer member 21 is formed at a substantially central portion of the end surface 33. The buffer member 21 is fixed by inserting a screw 36 into the mounting hole 35 and screwing the screw 36 into a screw hole 23 </ b> A formed in the first flat surface portion 23.

  Next, the assembly method and operation of the chair in this embodiment will be described.

  In the pair of leg units 15, a support member 20 is connected to the bent portions 16A and 16A. As shown in FIG. 5, this connection forms a welded portion W in the abutting region between the left end of the first flat portion 23 and the second flat portion 25 in the drawing and the outer peripheral surface of the bent portion 16A. Is done. At this time, mutual alignment can be easily performed by receiving a part of the bent portion 16 </ b> A in the concave portion 24 </ b> A of the intermediate member 24. Then, the buffer member 21 is fixed to the first flat portion 23 via the screw 36.

  The leg 13 formed in this manner is arranged on the lower surface of the seat portion 11 and fixes a plurality of portions of the horizontal portion 16 with screws (not shown), while the second flat portion 25 and the seat portion 11 are fixed. The chair 10 can finally be completed by mutually connecting the lower surface with the screw 26.

  When the plurality of chairs 10 are stacked, the end surface 33 of the cushioning member 21 is grounded to the upper surface side of the seat portion 11 positioned below. Since the first and second flat portions 23 and 25 are fixed by welding to the bent portion 16A, and the second flat portion 25 is fixed to the seat portion 11 by screws 26, a so-called three-point support structure is obtained. Even when an unintended external force is applied in the lateral direction or the twisting direction during stacking, sufficient durability strength is exhibited, and thereby the support of the buffer member 21 can be stabilized. Moreover, since the buffer member 21 is supported by the first flat surface portion 23 and is screwed to the first flat surface portion 23 with the mounting surface 30 being grounded with a large area, the buffer member 21 itself is supported. Can also be firmly supported.

Although the best configuration for carrying out the present invention has been disclosed in the above description, the present invention is not limited to this.
That is, the invention has been illustrated and described with particular reference to particular embodiments, but it should be understood that the above-described embodiments are not deviated from the technical idea and scope of the invention. On the other hand, those skilled in the art can make various modifications in shape, material, and other detailed configurations.
Accordingly, the configurations disclosed above are described as examples to facilitate understanding of the present invention, and do not limit the present invention. Therefore, some or all of the limitations such as the shapes thereof are not included. The description by the name of the member which removed the limitation is included in the present invention.

  For example, the leg body 13 is not limited to the illustrated configuration example, and includes a pair of leg units having a gate shape, and a structure in which a horizontal portion is spanned between the upper portions of the leg units and connected to each other. Can be illustrated.

  In addition, the support member 20 is provided with the first and second plane portions 23 and 25. However, the second plane portions are symmetrically arranged on both sides of the first plane portion, and these end portions are laterally arranged. You may make it connect with a rack part. According to this, the attachment strength of the support member 20 can be further strengthened, and the support stability of the buffer member 21 can be further enhanced.

  Moreover, the shape of the buffer member 21 is not limited to the illustrated configuration example, and design changes can be made as long as a certain buffer effect can be obtained.

The front view of the chair which concerns on embodiment. The right view of FIG. The expansion perspective view in the state where the chair was reversed. FIG. 4 is a partially enlarged view of FIG. 3. The principal part expanded sectional view. The side view which shows the state which decomposed | disassembled the supporting member and the buffer member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Chair 11 Seat part 13 Leg body 16 Horizontal support part 20 Support member 21 Buffer member 23 1st plane part 24 Intermediate member 24A Recessed part 25 2nd plane part

Claims (3)

In a chair provided with a seat, a leg provided on the lower surface side of the seat and including a horizontal portion along the lower surface of the seat, and a cushioning member located on the lower surface of the seat,
A support member that supports the buffer member, and the support member is connected to the first flat surface portion that supports the buffer member in a state in which the height position is different from the first flat surface portion via an intermediate member. A second plane portion formed,
The first flat surface portion and the second flat surface portion are connected to the horizontal portion, respectively. The chair according to claim 1, wherein the second flat surface portion is also connected to the seat portion. The chair according to claim 1 or 2, wherein a side end of the intermediate member is provided in a shape for receiving a part of the horizontal portion.

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