Foot end

Abstract

To provide a leg end that has a novel structure.SOLUTION: A leg end that is fitted to a bottom side frame in a chair to be collected while being stacked is configured to project in an upper direction and a lower direction as compared to the bottom side frame.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to leg ends. [Background technology]

[0002] Leg ends that are attached to the bottom frame of a chair that is collected in a stacked order are known. For example, Patent Documents 1 and 2 disclose leg ends that have a function for setting the stacking pitch when collected. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 4-138346 [Patent Document 2] Japanese Patent Application Publication No. 8-126544 Summary of the Invention [Problem to be solved by the invention]

[0004] One aspect of the present disclosure is to provide a leg end of novel construction. [Means for solving the problem]

[0005] One aspect of the present disclosure is a leg end that is attached to a base frame of a chair that is stacked and collected, and is configured to protrude upward and downward from the base frame.

[0006] Such a configuration makes it possible to provide a leg end with a novel structure. In one aspect of the present disclosure, the leg end may include an abutment surface, a placement surface, and an inclined surface. The abutment surface abuts against the floor surface. The placement surface is formed above the abutment surface, and when the chairs are stacked and collected, the abutment surface of the leg end of the chair stacked above abuts against the placement surface. The inclined surface is formed on at least one of the rear end side of the abutment surface and the front end side of the placement surface.

[0007] This configuration makes it easier to stack the chairs. In one aspect of the present disclosure, the leg end may include an abutment surface and a placement surface. The abutment surface abuts against the floor surface. The placement surface is formed above the abutment surface, and when the chairs are stacked and collected, the abutment surface of the leg end of the chair stacked above abuts against the placement surface. The abutment surface and the placement surface may be formed as a single part. In one aspect of the present disclosure, the leg end may include a mounting portion. The mounting portion has an insertion hole formed therein through which the base frame is inserted, and is attached to the base frame by abutting against the outer peripheral surface of the base frame when inserted through the insertion hole. The mounting portion may have an opening formed therein that allows the base frame to be inserted into the insertion hole in a direction perpendicular to the axial direction of the base frame.

[0008] With this configuration, the base frame can be inserted from a direction perpendicular to the axial direction of the base frame, making it easier to attach the leg ends to the base frame. In one aspect of the present disclosure, the leg end may be constructed as a single piece.

[0009] With this configuration, the number of parts can be reduced compared to a leg end that is made up of multiple parts. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing a chair according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing the left leg end of the embodiment. [Figure 3] FIG. 2 is a front view showing the left leg end of the embodiment. [Figure 4] FIG. 10 is a right side view showing the left leg end of the embodiment. [Figure 5] This is a perspective view showing the state in which two chairs are stacked and collected. [Figure 6] This is an enlarged view of the lower part of the left side view showing the state in which two chairs are stacked and collected. [Figure 7] FIG. 10 is a perspective view showing the left leg end of the first modified example. [Figure 8]FIG. 10 is a perspective view showing the left leg end of the second modified example. [Figure 9] 10A and 10B are left side views showing a state in which chairs with thin cushions are stacked and collected, and left side views showing a state in which chairs with thick cushions are stacked and collected. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings. [1. Configuration] 1 includes a left leg 2, a right leg 3, a seat 4, a backrest 5, two left leg ends 6, and two right leg ends 7. In the following description, the up-down, front-back, and left-right directions are expressed based on a user seated normally on chair 1.

[0012] The left leg 2 and the right leg 3 are frames formed by bending and welding approximately cylindrical metal pipes, and are supports that support the seat body 4 and the backrest 5. The material of the frames is not limited to metal pipes, and may be, for example, solid wood.

[0013] The left leg 2 is located below and to the left of the seat 4, and includes a front-left pillar 21, a rear-left pillar 22, and a lower-left pillar 23. The front-left pillar 21 is located at the front of the left leg 2, and has a length in the vertical direction. The rear-left pillar 22 is located at the rear of the left leg 2, and has a length in the vertical direction. The lower-left pillar 23 is located at the bottom of the left leg 2, connects the lower end of the front-left pillar 21 and the lower end of the rear-left pillar 22, and is disposed along the floor surface on which the chair 1 is placed.

[0014] The right leg 3 is located below and to the right of the seat 4 and includes a right front pillar 31, a right rear pillar 32, and a right lower pillar 33. The right front pillar 31 is located in the front of the right leg 3 and has a length in the vertical direction. The right rear pillar 32 is located in the rear of the right leg 3 and has a length in the vertical direction. The right lower pillar 33 is located at the bottom of the right leg 3 and connects the lower ends of the right front pillar 31 and the right rear pillar 32, and is located along the floor surface on which the chair 1 is placed.

[0015] The seat body 4 is substantially rectangular and is configured so that a user can sit on it. The backrest 5 is substantially rectangular and is configured to be able to support the back of a seated user. The two left leg ends 6 are leg ends attached to the left leg body 2. One left leg end 6 is attached to the front side and one left leg end 6 is attached to the rear side of the left lower pillar 23.

[0016] Similarly, the two right leg ends 7 are leg ends attached to the right leg body 3. The right leg ends 7 are attached to the front and rear sides of the right lower pillar 33, respectively. The left leg end 6 and the right leg end 7 are symmetrical in shape. Therefore, the following description will focus on the shape of the left leg end 6, and a description of the shape of the right leg end 7 will be omitted.

[0017] The left leg end 6 is made as a single resin part and is formed in a generally rectangular parallelepiped shape that protrudes upward, downward, and leftward from the lower-left column 23. Specifically, as shown in Figures 2 to 4, the left leg end 6 is configured in a frame shape with a hollow portion that penetrates in the left-right direction. The left leg end 6 includes a bottom wall 61, an upper wall 62, a front inclined wall 63, a side wall 64, a front wall 65, and a rear wall 66.

[0018] The bottom wall 61 is a substantially rectangular plate-like portion that forms a contact surface 61a, which is the underside of the left leg end 6. The bottom wall 61 is located below the lower left pillar 23. When the chair 1 is placed on the floor, the contact surface 61a comes into contact with the floor.

[0019] The upper wall 62 is a substantially rectangular plate-like portion that forms the support surface 62a, which is the upper surface of the left leg end 6. The upper wall 62 is located higher than the lower left pillar 23. The support surface 62a is located higher than the contact surface 61a and is parallel to the contact surface 61a. When the chairs 1 are stacked and collected, the contact surface 61a of the left leg end 6 of the chair 1 stacked above abuts against the support surface 62a. Note that although it is conceivable that the surfaces of the contact surface 61a and the support surface 62a may be uneven, "parallel" here means that there is no design inclination between the plane that contacts the contact surface 61a and the plane that contacts the support surface 62a.

[0020] The front inclined wall 63 is a generally rectangular plate-like portion that forms the front inclined surface 63a, which is the upper front surface of the left leg end 6. The front inclined wall 63 is formed to extend diagonally downward and forward from the front end of the upper wall 62, and, like the upper wall 62, is located above the lower-left pillar 23. The front inclined surface 63a is a surface shaped by chamfering the upper front corner of the left leg end 6, and is formed on the front end side of the mounting surface 62a. The front inclined surface 63a is inclined downward with respect to the mounting surface 62a.

[0021] The side wall 64 is a generally rectangular plate-like portion that closes the lower part of the hollow portion that penetrates in the left-right direction on the left side surface of the left leg end 6. The side wall 64 is located on the left side of the left lower pillar 23. The front wall 65 is a generally rectangular plate-like portion that forms the front surface of the left leg end 6. The front wall 65 is formed to extend vertically upward from the front end of the bottom wall 61, and connects the front end of the bottom wall 61 and the front end of the front inclined wall 63.

[0022] The rear wall 66 is a generally rectangular plate-like portion that forms the rear surface of the left leg end 6. The rear wall 66 is formed to extend vertically downward from the rear end of the upper wall 62, and connects the rear end of the bottom wall 61 and the rear end of the upper wall 62.

[0023] An insertion hole 67, through which the lower-left pillar 23 is inserted, is formed in each of the front wall 65 and the rear wall 66, at a position that is downward in the up-down direction and toward the right in the left-right direction. The insertion hole 67 is formed in each of the front wall 65 and the rear wall 66 at a position where a portion of the lower-left pillar 23 protrudes to the right. That is, the insertion hole 67 is formed in each of the front wall 65 and the rear wall 66 as a generally C-shaped notch that is open on the right side. As a result, an opening 68 is formed in each of the front wall 65 and the rear wall 66 that allows the lower-left pillar 23 to be inserted into the insertion hole 67 from the right side in a direction perpendicular to the axial direction of the lower-left pillar 23. The insertion hole 67 is configured in a shape that corresponds to the outer shape of the lower-left pillar 23, and abuts against the outer peripheral surface of the lower-left pillar 23 when inserted into the insertion hole 67.

[0024] [2. Effect] Next, the action of the leg ends will be explained. Below, we will explain the action of the leg ends when two chairs 1 are stacked and collected, but the action of the leg ends when three or more chairs 1 are stacked and collected is the same. Also, below, we will explain the action of the left leg end 6, but the action of the right leg end 7 is the same.

[0025] 5 and 6, when two chairs 1 are stacked and collected, the two left leg ends 6 of the upper chair 1 abut against the two left leg ends 6 of the lower chair 1. Specifically, the abutting surface 61a of the upper left leg end 6 abuts against the support surface 62a of the lower left leg end 6. Therefore, the stacking pitch of the stacked and collected chairs 1 is equal to the height of the left leg ends 6, in other words, the width between the abutting surfaces 61a and the support surface 62a.

[0026] In particular, since the left leg end 6 is formed with a front inclined surface 63a, even when the left leg end 6 of the upper chair 1 abuts against the left leg end 6 of the lower chair 1 from the front when the chairs 1 are stacked and collected, the left leg end 6 of the upper chair 1 is easily guided onto the placement surface 62a by the front inclined surface 63a of the left leg end 6 of the lower chair 1.

[0027] [3.Effects] According to the embodiment described above in detail, the following effects can be obtained. (3a) The left leg end 6, which is the leg end attached to the left lower column 23, is configured to protrude upward and downward from the left lower column 23. In addition, the right leg end 7, which is the leg end attached to the right lower column 33, is configured to protrude upward and downward from the right lower column 33.

[0028] This configuration makes it possible to provide leg ends with a novel structure. In particular, because the leg ends protrude upward, it is possible to increase the stacking pitch when the chairs 1 are stacked and collected. Furthermore, because the leg ends protrude upward more than downward, it is possible to increase the stability of the chair 1 when placed on the floor.

[0029] (3b) The placing surface 62a is formed above the contact surface 61a. When the chairs 1 are stacked and collected, the contact surfaces 61a provided at the leg ends of the chair 1 stacked above the placing surface 62a come into contact with the placing surface 62a.

[0030] With this configuration, when the chairs 1 are stacked and collected, a stacking pitch equal to the width between the contact surface 61a and the placement surface 62a, in other words, the height of the leg ends, can be ensured.

[0031] (3c) The end of the leg is slanted at the front top. Therefore, for example, even if the leg end of an upper chair 1 abuts the leg end of a lower chair 1 from the front when the chairs 1 are stacked and collected, the leg end of the upper chair 1 is easily guided onto the placement surface by the front inclined surface of the leg end of the lower chair 1.

[0032] Therefore, with this configuration, when a worker stacks and collects the chairs 1, the chairs 1 can be easily stacked. (3d) An opening 68 is formed in each of the front wall 65 and rear wall 66 of the left leg end 6, allowing the left lower pillar 23 to be inserted into the insertion hole 67. The same is true for the right leg end 7.

[0033] With this configuration, the left lower pillar 23 can be inserted into the insertion hole 67 from the right direction perpendicular to the axial direction of the left lower pillar 23. In other words, the worker can attach the left leg end 6 to the left lower pillar 23 by inserting the left leg end 6 into the left lower pillar 23 from the left direction.

[0034] In the case of the right leg end 7, the right lower pillar 33 can be inserted into the insertion hole 67 from the left side of the directions perpendicular to the axial direction of the right lower pillar 33. In other words, the worker can attach the right leg end 7 to the right lower pillar 33 by inserting the right leg end 7 into the right lower pillar 33 from the right side.

[0035] (3e) The leg end is constructed as a single piece. This configuration reduces the number of parts compared to a configuration using multiple parts, and also makes it easier to attach the leg ends.

[0036] In the above embodiment, the lower left column 23 and the lower right column 33 correspond to an example of a bottom frame. The bottom frame is the portion of the frame that constitutes the chair that extends along the floor surface on which the chair is placed and that abuts against the floor when the leg ends are not attached. The portions of the leg ends that contribute to attachment to the bottom frame, specifically the portions that form the insertion hole 67 and the opening 68, and the bottom wall 61, side wall 64, front wall 65, and rear wall 66 that abut against the outer peripheral surface of the lower left column 23 or the lower right column 33 when inserted into the insertion hole 67, correspond to an example of an attachment portion.

[0037] 4. Other Embodiments Although the embodiments of the present disclosure have been described above, it goes without saying that the present disclosure is not limited to the above-described embodiments and can take on various forms.

[0038] (4a) In the above embodiment, the insertion holes 67 are formed at positions lower in the up-down direction on each of the front wall 65 and the rear wall 66, but the positions at which the insertion holes 67 are formed are not limited to this, and for example, the insertion holes 67 may be formed at positions higher in the up-down direction on each of the front wall 65 and the rear wall 66. In other words, the leg ends are not limited to a configuration in which they protrude upward more than downward, and may, for example, be a configuration in which they protrude downward more than upward.

[0039] (4b) In the above embodiment, the leg end is configured as a single part, but the leg end may be configured as multiple parts. Even in this case, if the contact surface and the support surface are formed as a single part, the main part for fulfilling the function of the leg end will be configured as a single part, making it easier to obtain a stable effect compared to when the main part is configured as multiple parts.

[0040] (4c) In the above embodiment, the leg end has an inclined surface on the upper front side, but the inclined surface may be located at a position other than the upper front side. For example, the left leg end 8 of the first modified example shown in FIG. 7 differs from the left leg end 6 of the above embodiment in that it has a rear inclined wall 69 instead of the front inclined wall 63. The rear inclined wall 69 is a substantially rectangular plate-like portion that forms a rear inclined surface 69a, which is the surface on the lower rear side of the left leg end 8. The rear inclined wall 69 is formed so as to extend obliquely upward and rearward from the rear end of the bottom wall 61. The rear inclined surface 69a is a surface shaped by chamfering the corner on the lower rear side of the left leg end 8, and is formed on the rear end side of the abutment surface 61a. The rear inclined surface 69a is inclined upward with respect to the abutment surface 61a. With this configuration, the same effect as in (3c) above can be obtained.

[0041] Further, for example, as in the left leg end 9 of the second modified example shown in Fig. 8, it may be provided with both a front inclined wall 63 and a rear inclined wall 69. With such a configuration, the same effect as in (3c) above can be obtained. The leg end may not have an inclined surface.

[0042] (4d) In the above embodiment, leg ends configured to protrude upward more than downward are illustrated. However, multiple types of leg ends with different downward and upward protrusion ratios may be used. For example, if a common frame is used for multiple types of chairs with different cushion thicknesses in the seat body, using the same leg ends would result in different seat heights due to differences in cushion thickness. Therefore, multiple types of leg ends with different downward protrusion amounts may be used depending on the cushion thickness, allowing for a common frame while maintaining a consistent seat height. Even in this case, if the leg ends are the same height, it is possible to maintain a consistent stacking pitch when the chairs are stacked and collected.

[0043] (4e) In the above embodiment, an example was given of a leg end configured in a frame shape having a hollow portion penetrating in the left-right direction, but the leg end is not limited to this and may be configured, for example, in a block shape without a hollow portion.

[0044] (4f) The function of one component in the above embodiments may be distributed among multiple components, or the functions of multiple components may be integrated into one component. Also, part of the configuration of the above embodiments may be omitted. Furthermore, at least part of the configuration of the above embodiments may be added to or substituted for the configuration of another of the above embodiments.

[0045] [Reference example] This disclosure discloses leg ends configured to protrude upward and downward from the base frame, but leg ends configured to not protrude upward from the base frame and to protrude significantly only downward from the base frame are also considered as reference examples.

[0046] When making the frame part common for multiple types of chairs with different cushion thicknesses in the seat body as in (4d) above, while maintaining a constant seat height, for example, as shown in Figure 9, for chair 100 with a thinner cushion than the above embodiment, a leg end 600 that does not protrude upward from the base frame and protrudes downward from the base frame by a greater amount than the left leg end 6 of chair 1 can be used, thereby configuring the seat height of chair 100 with a thin cushion to be constant as well as the seat height of chair 1 with a thick cushion. [Explanation of symbols]

[0047] 1...Chair, 2...Left leg body, 3...Right leg body, 6,8,9...Left leg end, 7...Right leg end, 21...Left front column, 22...Left rear column, 23...Left lower column, 31...Right front column, 32...Right rear column, 33...Right lower column, 61...Bottom wall, 61a...Abutting surface, 62...Top wall, 62a...Placement surface, 63...Front inclined wall, 63a...Front inclined surface, 65...Front wall, 66...Rear wall, 67...Insertion hole, 68...Opening part, 69...Rear inclined wall, 69a...Rear inclined surface.

Claims

1. A leg end attached to a bottom frame of a chair to be stacked and collected, The leg ends are configured to protrude upward and downward from the base frame and have hollow portions, The hollow portion is configured to penetrate in the left-right direction when a user is normally seated on the chair, at least above the bottom frame, Furthermore, the hollow portion is formed in a state surrounded by a bottom wall, a front wall, a rear wall, and an upper wall, The bottom wall is a plate-like member located below the bottom frame and configured to abut against the floor surface when the chair is placed on the floor surface, The front wall is formed to extend upward from the front end of the bottom wall and is configured in a plate shape to form the front surface of the leg end, The rear wall is formed to extend upward from the rear end of the bottom wall and is configured in a plate shape to form the rear surface of the leg end, The upper wall is provided between the upper end of the front wall and the upper end of the rear wall, and is configured in a plate shape located above the bottom frame while being spaced apart from the bottom frame. leg end.

2. A leg end as described in claim 1, a contact surface that contacts the floor surface; a placing surface formed above the contact surface and contacting the contact surface of the leg end of the chair stacked above when the chairs are stacked and collected; a leg end including an inclined surface formed on at least one of the rear end side of the contact surface and the front end side of the placement surface.

3. The leg end according to claim 1 or claim 2, a contact surface that contacts the floor surface; a placing surface formed above the contact surface and contacting the contact surface of the leg end of the chair stacked above when the chairs are stacked and collected; Equipped with A leg end, wherein the abutment surface and the placement surface are formed in a single piece.

4. A leg end according to any one of claims 1 to 3, a mounting portion that is formed with an insertion hole through which the bottom frame is inserted and that abuts against an outer peripheral surface of the bottom frame when inserted into the insertion hole and is mounted to the bottom frame; The mounting portion has an opening formed at the leg end that allows the base frame to be inserted into the insertion hole from a direction perpendicular to the axial direction of the base frame.

5. A leg end according to any one of claims 1 to 4, The end of the leg, constructed as a single piece.

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