chair

Abstract

To provide a chair which enables small items to be efficiently disposed, and can be compactly folded when not in use.SOLUTION: A chair 1 comprises: a seat member 3; a leg body 2 having a front leg 20 and a rear leg 21; armrest bodies 50 each having a first fixed end connected to the front leg 20, a first free end rotationally turning on a first locus around a first shaft, and a first long hole; and hanging bodies 51 each having a second fixed end connected to the front leg 20, and a second free end rotationally turning on a second locus around a second shaft and slidably connecting the first long hole to the arm rest body 50. When any one of the first free end and the second free end rotationally turns from a first position where the first locus and the second locus cross each other on the front side of the front leg 20 to a second position where the first locus and the second locus cross each other on the rear side when viewed from a second axis direction, the other rotationally turns in conjunction therewith, from the first position to the second position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a chair. [Background technology]

[0002] Conventionally, garden chairs for home use have been known as chairs for outdoor use (see, for example, Patent Document 1). Such chairs are suitable for use outdoors in the mountains, on the beach, etc., or on the veranda of an apartment building. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-299546 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the chair described in Patent Document 1 does not have space to place small items such as a pot (cooker) or a Sierra cup, so when using the chair, the user must prepare a separate table or the like to provide space to place small items. Furthermore, while the chair described in Patent Document 1 is foldable, it is folded by contracting left and right, which means that the backrest and seat become bulky when contracted. This can make it difficult to store the chair in storage spaces with limited storage width.

[0005] The present invention has been made in consideration of the above circumstances, and has as its object to provide a chair that allows for efficient placement of small items and can be folded compactly when not in use. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention proposes the following means. A chair according to a first aspect of the present invention includes a seat member on which a person can sit, a leg body having a pair of front legs supporting the seat member from both left and right sides and a pair of rear legs provided on both left and right sides in the left and right direction, an armrest body having a first fixed end formed in a rod shape along a first longitudinal direction and rotatably connected to the front legs, a first free end passing through the first fixed end and rotating on a first locus around a first axis perpendicular to the first longitudinal direction, and a first elongated hole extending along the first longitudinal direction, a second fixed end formed in a rod shape along a second longitudinal direction and rotatably connected to the front legs, and a second fixed end portion of the armrest body having a first fixed end portion rotatably connected to the front legs. and a clothes hanger having a second free end which passes through a fixed end and rotates on a second locus around a second axis perpendicular to the second longitudinal direction, the second free end being connected to the armrest body so as to be slidable through the first long hole of the armrest body, and when one of the first free end and the second free end rotates from a first position where the first locus and the second locus intersect on one side of the front leg in the fore-and-aft direction as viewed from the second axial direction, to a second position where the first locus and the second locus intersect on the other side of the front leg in the fore-and-aft direction, the other free end rotates in conjunction with the first position to the second position. [Effects of the Invention]

[0007] The chair according to the present invention allows for efficient placement of small items and can be folded compactly when not in use. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a chair according to an embodiment of the present invention; [Figure 2] FIG. 2 is a side view of the chair from the right side. [Figure 3] FIG. 2 is a front view of the chair seen from the rear side. [Figure 4] FIG. 2 is a perspective view showing the chair in a folded state. [Figure 5] 10 is an enlarged view of the tip side in the first longitudinal direction of a first elongated hole provided in an armrest body of the chair. FIG. [Figure 6]This is a side view of the chair from the right side in the left-right direction, showing the first transition state of the outer part. [Figure 7] This is a side view of the chair from the right side in the left-right direction, showing the second transition state of the outer part. [Figure 8] This is a side view of the chair from the right side in the left-right direction, showing the third transition state of the outer part. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the present invention will be described with reference to Figures 1 to 8. In the embodiments and modifications described below, corresponding components may be denoted by the same reference numerals, and a description thereof may be omitted. In the following description, expressions indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," not only strictly indicate such arrangements, but also indicate a state in which there is a relative displacement with a tolerance or an angle or distance that provides the same function.

[0010] [Chair 1] Fig. 1 is a perspective view of a chair 1 according to one embodiment of the present invention in use. Fig. 2 is a side view of the chair 1 as seen from the right side RH. Fig. 3 is a front view of the chair 1 as seen from the rear side RR. Fig. 4 is a perspective view showing the chair 1 in a folded state. Chair 1 is configured so that a seated person (not shown) can sit in a normal position on seat member 3 with legs 2 spread in a generally inverted V shape along the front-to-back direction (vertical direction) (hereinafter referred to as the in-use state). Chair 1 is, for example, a wooden garden chair that can be used outdoors.

[0011] Here, as shown in FIG. 1 , the chair 1 is placed on a floor surface G in a usable state. In the following description, the direction perpendicular to the floor surface G is referred to as the up-down direction. In the up-down direction, the upper side is referred to as the upper side UP, and the side opposite the upper side UP is referred to as the lower side DW. The direction in which a seated person seated in a normal posture on the seat member 3 of the chair 1 faces forward and backward is referred to as the front-to-back direction. The front-to-back direction is perpendicular to the up-to-down direction. In the front-to-back direction, the direction in which the seated person faces forward is referred to as the front side FR, and the opposite direction is referred to as the rear side RR. The direction perpendicular to the up-to-down direction and the front-to-back direction is referred to as the left-to-right direction. In the left-to-right direction, one side is referred to as the left side LH, and the side opposite the left side LH is referred to as the right side RH. In the following description, the up-to-down, front-to-back, and left-to-right directions refer to directions that correspond to the orientation of the seated person and the chair 1 when the seated person is seated in a normal posture on the seat member 3. In this embodiment, the up-to-down direction of the chair 1 coincides with the vertical direction.

[0012] Here, chair 1 is configured to be able to transition (transform) from the above-mentioned in-use state to a folded state, as shown in Figure 4. In the folded state, closed legs 2 (described later), seat member 3, backrest 4, and outer portion 5 are all folded vertically into a substantially I-shape. In the following description of the configuration, unless otherwise specified, chair 1 is assumed to be in a in-use state.

[0013] As shown in FIG. 1, the chair 1 includes a leg body 2, a seat member 3, a backrest portion 4, and an outer portion 5.

[0014] [Leg body 2] 1 to 3, the legs 2 are spread apart in a generally inverted V shape when in use. The legs 2 include front legs 20, rear legs 21, a connecting portion 23, and a rod-shaped portion 24.

[0015] [Front leg 20] The front legs 20 are, for example, wooden rod-shaped members extending in the up-down direction. Two front legs 20 are provided on both the right side RH and the left side LH in the left-right direction, spaced a predetermined distance apart, so as to be symmetrical with respect to a vertical plane VP extending in the up-down direction and the front-rear direction. The pair of front legs 20 are inclined from the lower side DW toward the upper side UP to the rear side RR. The front legs 20 have an upper end 20a on the upper side UP and a lower end 20b on the lower side DW. The lower end 20b is placed on the floor G. Furthermore, the front legs 20 have a first support pin 201 in the center, which is elongated.

[0016] In the following description, the longitudinal axis of the front leg 20 is referred to as the longitudinal axis O1, as shown in FIGS. 1 to 4. For ease of explanation, the longitudinal axis O1 is referred to as the longitudinal axis of the front leg 20 on the right side RH of the pair of front legs 20, and only the longitudinal axis O1 of the front leg 20 on the right side RH is illustrated. In addition, the side LH to the left of the longitudinal axis O1 in the left-right direction is also referred to as the inside of the chair 1. In addition, the side RH to the right of the longitudinal axis O1 in the left-right direction is also referred to as the outside of the chair 1. In the following description, the configuration of the right side RH in the left-right direction will be mainly described, and the description of the left side LH may be omitted as it has a symmetrical configuration to the right side RH.

[0017] As shown in FIG. 2 , the first support pin 201 is disposed at a position overlapping the longitudinal axis O1 of the front leg 20 when viewed from the right side RH in the left-right direction. The first support pin 201 is inserted into a second elongated hole 311 (described later) along the left-right direction with its tip pointing toward the inside of the chair 1. The first support pin 201 rotatably connects the seat body side portion 31 of the seat member 3 to the front leg 20. The first support pin 201 is slidable in the second elongated hole 311. The front leg 20 supports the seat member 3 from both left and right sides via the first support pin 201.

[0018] [Back leg 21] The rear legs 21 are, for example, wooden rod-shaped members extending in the vertical direction. The rear legs 21 are provided on the rear side RR of the front legs 20. For example, the rear legs 21 are disposed in positions overlapping the front legs 20 when viewed from the front-to-rear direction. Like the front legs 20, two rear legs 21 are provided on both sides in the left-right direction so as to be symmetrical with respect to the vertical plane VP. The pair of rear legs 21 are inclined from the lower side DW to the upper side UP toward the front side FR. The rear legs 21 have an upper end 21a on the upper side UP and a lower end 21b on the lower side DW. The upper end 21a abuts the center of the front legs 20. As shown in FIG. 2, the abutting portion of the upper end 21a is cut to conform to the shape of the side surface of the front legs 20, and preferably abuts closely against the side surface of the front legs 20 when in use. The lower end 21b is placed on the floor surface G. The leg opening angle of the legs 2 formed by abutting the upper end portions 21a of the rear legs 21 against the front legs 20 is set to any angle according to the height of the chair 1. The rear legs 21 also have a second support pin 211 on the upper side UP.

[0019] The second support pin 211 is provided on the upper side UP of the rear leg 21. The second support pin 211 rotatably connects the seat body side portion 31 of the seat member 3 to the rear leg 21. The rear leg 21 supports the seat member 3 from both the left and right sides via the second support pin 211.

[0020] The connecting portion 23 connects the front leg portion 20 and the rear leg portion 21. The connecting portion 23 is, for example, a wooden rod-shaped member provided on both the left and right sides so as to be symmetrical with respect to the vertical plane VP, similar to the front leg portion 20 and the rear leg portion 21. When in use, the connecting portion 23 extends from the front side FR to the rear side RR in the front-to-rear direction, tilting slightly upward UP. The connecting portion 23 is positioned outside the chair 1 relative to the front leg portion 20 and the rear leg portion 21.

[0021] As shown in FIG. 2 , the connecting portion 23 includes a first connecting pin 231 on the base end side 23a. The first connecting pin 231 connects the center of the front leg 20 to the base end side 23a of the connecting portion 23. The connecting portion 23 also includes a second connecting pin 232 on the tip end side 23b. The second connecting pin 232 connects the upper end 21a of the hind leg 21 to the tip end side 23b of the connecting portion 23. The connecting portion 23 is rotatable about the first connecting pin 231 and the second connecting pin 232. In this embodiment, the first connecting pin 231 is connected to the front leg 20 slightly above the first support pin 201. The second connecting pin 232 is connected to the hind leg 21 slightly above the second support pin 211.

[0022] As shown in FIG. 1 or 3, the rod-shaped portion 24 extends in the left-right direction. The rod-shaped portion 24 includes a front rod-shaped portion 241 and a rear rod-shaped portion 242. The front rod-shaped portion 241 has both left-right ends connected to the lower ends 20b of the pair of front legs 20. The rear rod-shaped portion 242 has both left-right ends connected to the lower ends 21b of the pair of rear legs 21. With this configuration, the rod-shaped portion 24 can maintain the balance of the chair 1 by preventing misalignment of the pair of front legs 20 and rear legs 21 in each of the up-down, front-back, and left-right directions. Note that multiple rod-shaped portions 24 may be provided, or may be provided in a direction different from the left-right direction. Furthermore, the rod-shaped portion 24 is not an essential component.

[0023] [Seat member 3] As shown in Figures 1 to 3, the seat member 3 allows an occupant to sit on it when in use. The seat member 3 is provided between a pair of front legs 20 and a pair of rear legs 21 in the left-right direction. The seat member 3 includes front and rear seat portions 30, seat side portions 31, a first seat portion 32, and a second seat portion 33.

[0024] The seat body front and rear sections 30 are wooden rod-shaped members provided on both sides in the front-to-rear direction. The seat body front and rear sections 30 extend in the left-to-right direction. As shown in Figure 1, the seat body front and rear sections 301 and 302 are provided on the front side FR and the rear side RR, respectively.

[0025] Two seat body sides 31 (side portions) are provided on both the left and right sides, symmetrical with respect to the vertical plane VP. When in use, the seat body sides 31 are formed in a generally plate-like shape with a longitudinal direction along the front-to-back direction and a height direction (short side direction) H along the up-down direction. The front end of the front side FR of the seat body side 31 connects both ends of the front seat body portion 301. The rear end of the rear side RR of the seat body side 31 connects both ends of the rear seat body portion 302. Of the pair of seat body sides 31, the seat body side 31 on the right side RH is positioned more inward of the chair 1 than the front legs 20 and the connecting portion 23. Therefore, as shown in FIG. 3 , the seat body side 31, front legs 20, and connecting portion 23 are arranged in this order from the inside to the outside of the chair 1. The seat body side 31 on the left side LH is symmetrical to the seat body side 31 on the right side RH, and therefore will not be described here.

[0026] The center of the seat body side sections 31 is supported by the first support pin 201 of the front legs 20. The rear end of the rear side RR of the seat body side sections 31 is supported by the second support pin 211 of the rear legs 21. When the seat body side sections 31 transition (deform) from the in-use state to the folded state, the front end of the front side FR rotates upward UP around the rear end of the rear side RR as the center, as shown in Figures 1 to 4. This causes the entire seat member 3 to transition into a roughly I-shape along the up-down direction. Furthermore, the seat body side sections 31 have a protrusion 310 that protrudes in the height direction (short direction) H on the vertical plane VP, as shown in Figure 2.

[0027] The protrusion 310 is provided in the center of the seat body side portion 31. The protrusion 310 protrudes toward a protrusion side H1 in the height direction H. Here, the side opposite the protrusion side H1 in the height direction H is the seat body side H2. As shown in FIG. 2, the height direction H of the protrusion 310 is along the up-down direction in the used state. At this time, the protrusion side H1 is the lower side DW, and the seat body side H2 is the upper side UP. Furthermore, as shown in FIG. 4, the height direction H of the protrusion 310 is along the front-rear direction in the folded state. At this time, the protrusion side H1 is the front side FR, and the seat body side H2 is the rear side RR. The protrusion 310 is provided with a second elongated hole 311.

[0028] The second elongated hole 311 is a long hole that penetrates in the left-right direction. The second elongated hole 311 extends along the height direction H. Specifically, as shown in FIG. 2 , in the in-use state, the second elongated hole 311 is slightly inclined toward the front side FR from the lower side DW to the upper side UP with respect to the up-down direction, which is the height direction H. A first support pin 201 of the front leg 20 is engaged with the second elongated hole 311. The first support pin 201 is slidable within the second elongated hole 311. In the in-use state, the first support pin 201 is disposed on the seat body side H2 within the second elongated hole 311. Furthermore, in the folded state, which will be described later, the first support pin 201 is disposed on the protruding side H1 within the second elongated hole 311. Note that the second elongated hole 311 does not have to be inclined with respect to the height direction H. For example, the second elongated hole 311 may be formed parallel to the up-down direction, which is the height direction H, in the in-use state.

[0029] As shown in FIG. 1 , the first seat portion 32 and the second seat portion 33 are portions on which an occupant sits. In this embodiment, the first seat portion 32 and the second seat portion 33 are made of cloth. Both ends of the first seat portion 32 are wrapped around and connected to the front sides FR of a pair of seat body side portions 31 provided on both sides in the left-right direction. The second seat portion 33 is formed so as to contact the first seat portion 32 on an upper side UP of the first seat portion 32. Both ends of the second seat portion 33 are wrapped around and connected to the seat body front and rear portions 30 in the front-rear direction. The first seat portion 32 and the second seat portion 33 are formed in a cross shape. This configuration can support the weight (force) applied downward when an occupant sits on the seat member 3, and can increase the strength of the entire seat member 3.

[0030] [Backrest 4] As shown in FIGS. 1 to 3, both ends of the backrest 4 are wrapped around and connected to the upper sides UP of the pair of left and right front legs 20 in the left-right direction. The backrest 4 is made of, for example, cloth. As shown in FIG. 3, the backrest 4 may also include a rod-shaped member 40 that extends left and right on the rear side RR of the backrest 4 and connects both ends to the upper ends 20a of the pair of left and right front legs 20. The rod-shaped member 40 increases the strength of the backrest 4, and can further increase the strength of the entire chair 1.

[0031] [Outer part 5] The outer portion 5 is an outer frame of the chair 1 that can be used by the seated person as an armrest or a storage space for small items. The outer portion 5 includes an armrest body 50 and a hanging body 51. As with the leg body 2, the following description will mainly focus on the configuration of the right side RH of the outer portion 5, and will omit a description of the left side LH, as it has a symmetrical configuration to the right side RH.

[0032] Here, the first longitudinal direction A described below is the longitudinal direction of the armrest body 50. Similarly, the second longitudinal direction B is the longitudinal direction of the hanger body 51. In this embodiment, both the first longitudinal direction A and the second longitudinal direction B are directions along the vertical plane VP. However, the first longitudinal direction A and the second longitudinal direction B do not have to be directions along the vertical plane VP.

[0033] [Armrest body 50] As shown in Fig. 1 or 2, the armrest body 50 is a rod-shaped member extending along the first longitudinal direction A. When a seated person is seated, the seated person can place their elbows on the armrest body 50. The armrest body 50 is rotatably connected to the front leg portion 20. The armrest body 50 is designed so that its thickness in the left-right direction is approximately the same as that of the connecting portion 23, for example.

[0034] The armrest body 50 has a first pivot pin 501 at a first fixed end 50a on the base end side A1 in the first longitudinal direction A. The first pivot pin 501 connects the first fixed end 50a of the armrest body 50 to the center of the front leg 20. The armrest body 50 pivots around the first fixed end 50a on which the first pivot pin 501 is provided. At this time, an axis that passes through the first fixed end 50a, is perpendicular to the first longitudinal direction A, and extends along the left-right direction is defined as a first rotation axis (first axis) O2. As shown in FIG. 2, the first rotation axis O2 is disposed along the longitudinal axis O1 when viewed from the right side RH in the left-right direction. The first free end 50b at the tip end side A2 of the armrest body 50 in the first longitudinal direction A pivots along a first locus K1 (see FIG. 6) that is formed in an arc shape around the first rotation axis O2. The first pivot pin 501 is provided on the front leg 20 above the first connecting pin 231 of the connecting portion 23. The armrest body 50 also has a first elongated hole 502 that penetrates in the left-right direction along the first longitudinal direction A.

[0035] FIG. 5 is an enlarged view of the tip side A2 in the first longitudinal direction A of the first elongated hole 502 provided in the armrest body 50 of the chair 1. The first elongated hole 502 is a hole that penetrates in the left-right direction. The first elongated hole 502 extends from the first fixed end 50a to the first free end 50b along the first longitudinal direction A. Specifically, as shown in FIG. 2, the first elongated hole 502 is formed so as to be inclined slightly downward DW from the rear side RR to the front side FR with respect to the armrest body 50. This configuration allows the angle of the armrest body 50 to be adjusted. As shown in FIG. 5, the first elongated hole 502 has a recess 503 at a hole tip portion 502a provided on the tip side A2 in the first longitudinal direction A. Note that the first elongated hole 502 does not necessarily have to be inclined with respect to the armrest body 50. The first elongated hole 502 may be formed so as to be parallel to the armrest body 50.

[0036] The recess 503 is a part of the first elongated hole 502, and is formed by being recessed along a direction intersecting the first longitudinal direction A. The direction in which the recess 503 is formed is not particularly limited, but in this embodiment, as shown in Fig. 5, the recess 503 is formed on one side C1 of the short-side direction C that is perpendicular to the first longitudinal direction A along the vertical plane VP.

[0037] [Hanging body 51] As shown in Figs. 1 to 4, the hanger 51 is a rod-shaped member extending along the second longitudinal direction B. The hanger 51 is disposed further outward from the armrest 50 on the chair 1. The hanger 51 can provide a space for a seated person to hang and place small items such as a pot (cooker) or a Sierra cup. The hanger 51 is rotatably connected to the front leg 20.

[0038] As shown in FIG. 3, the hanger 51 includes a bearing portion 511 at a second fixed end portion 51a on the base end side B1 in the second longitudinal direction B.

[0039] The bearing portion 511 is disposed between the second fixed end 51a of the hanger 51 and the center of the front leg 20. The bearing portion 511 connects the second fixed end 51a of the hanger 51 to the front leg 20 using a connecting pin or the like. The bearing portion 511 is provided on a lower side DW than the first connecting pin 231 of the connecting portion 23 when viewed from the left-right direction. Therefore, the first fixed end 50a including the first pivot pin 501 is provided on a higher side UP in the vertical direction than the second fixed end 51a where the bearing portion 511 is disposed. The thickness of the bearing portion 511 is set to be approximately the same as that of the connecting portion 23 and the armrest 50 in the left-right direction, for example. Therefore, the hanger 51 is disposed outward of the connecting portion 23 and the armrest 50. However, the hanger 51 is not limited to the above-described embodiment. For example, the armrest body 50 may be attached to the front leg 20 via the hanger body 51 by a bearing or the like, so that the armrest body 50 is disposed outside the hanger body 51 .

[0040] The hanging body 51 rotates around the second fixed end 51a, on which the bearing 511 is disposed. An axis passing through the second fixed end 51a and perpendicular to the second longitudinal direction B and extending along the left-right direction is defined as a second rotation axis (second axis) O3. The second rotation axis O3 is substantially parallel to the first rotation axis O2. In this embodiment, the first rotation axis O2 and the second rotation axis O3 are perpendicular to the vertical plane VP, but this is not limiting. Furthermore, as shown in FIG. 2, the second rotation axis O3 is disposed along the longitudinal axis O1 when viewed from the left-right direction. That is, as shown in FIG. 2, both the first rotation axis O2 and the second rotation axis O3 are disposed along the longitudinal axis O1 when viewed from the left-right direction. Furthermore, the hanging body 51 includes a slide pin 513 at the second free end 51b on the tip side B2 in the second longitudinal direction B.

[0041] As shown in FIG. 2 , the sliding pin 513 is attached to the hanger 51 at its second free end 51b so as to be slidable relative to the first elongated hole 502. The sliding pin 513 is inserted into the first elongated hole 502 of the armrest body 50 along the left-right direction, with its tip facing toward the inside of the chair 1. The second free end 51b rotates on a second locus K2 (see FIG. 6 ), which is formed in an arc shape around the second rotation axis O3, and is connected to the armrest body 50 via the sliding pin 513 so as to be slidable relative to the first elongated hole 502 of the armrest body 50. The first elongated hole 502 extends from the first fixed end 50a to the first free end 50b. Therefore, the second free end 51b can move (rotate) from the first fixed end 50a to the first free end 50b of the armrest body 50 via the sliding pin 513, thereby interlocking the armrest body 50 and the hanger 51. The sliding pin 513 stops rotating when it reaches the elongated hole tip 502a of the first elongated hole 502. The sliding pin 513 is fitted into the recess 503 of the elongated hole tip 502a and fixed therein.

[0042] [Effect] Next, the operation of the chair 1 described above will be explained with reference to Fig. 4 and Fig. 6 to Fig. 8. Fig. 6 is a side view of the chair 1 as seen from the right side RH in the left-right direction, showing a first transition state of the outer portion 5. Fig. 7 is a side view of the chair 1 as seen from the right side RH in the left-right direction, showing a second transition state of the outer portion 5. Fig. 8 is a side view of the chair 1 as seen from the right side RH in the left-right direction, showing a third transition state of the outer portion 5. First, the first transition state, second transition state, and third transition state of the outer portion 5 of the chair 1 according to one embodiment of the present invention will be described with reference to Figures 6 to 8. In this embodiment, the first transition state, second transition state, and third transition state will be described in the case where the chair 1 is in use, but are not particularly limited thereto, and may be, for example, the case where the chair 1 is in a folded state.

[0043] As shown in FIG. 6, the first locus K1 is the locus of the first free end 50b of the armrest 50, which is formed in an arc shape around the first rotation axis O2. Also, as shown in FIG. 6, the second locus K2 is the locus of the second free end 51b of the hanger 51, which is formed in an arc shape around the second rotation axis O3. When viewed from the direction of the second rotation axis O3, the position where the first locus K1 and the second locus K2 intersect on one side of the longitudinal axis O1 of the front leg 20 in the front-rear direction is defined as a first position P1. In this embodiment, the first position P1 is located on the front side FR in the front-rear direction as viewed from the right side RH in the second rotation axis O3 direction, as shown in FIG. 6. However, this is not limited to this embodiment, and the first position P1 may also be located on the rear side RR in the front-rear direction as viewed from the direction of the second rotation axis O3. Further, as viewed from the direction of the second rotation axis O3, the position where the first locus K1 and the second locus K2 intersect on the other side in the front-to-rear direction of the longitudinal axis O1 of the front leg 20 is defined as a second position P2. In this embodiment, as shown in FIG. 8, the second position P2 is located on the rear side RR, opposite the front side FR in the front-to-rear direction where the first position P1 is located, as viewed from the right side RH in the direction of the second rotation axis O3. Note that when the first position P1 is located on the rear side RR in the front-to-rear direction as viewed from the direction of the second rotation axis O3, the second position P2 is located on the front side FR in the front-to-rear direction. Furthermore, as shown in FIG. 7, as viewed from the direction of the second rotation axis O3, the position where the second locus K2 and the longitudinal axis O1 intersect is defined as a third position PB. As viewed from the direction of the second rotation axis O3 along the left-right direction, the position where the first locus K1 and the longitudinal axis O1 intersect is defined as a fourth position PA.

[0044] (first transition state) The first transition state is a state in which a seated occupant can rest their elbows on the armrest 50 of the outer portion 5. In the first transition state, as shown in FIG. 6 , the first free end 50b of the armrest 50 and the second free end 51b of the hanging member 51 are positioned at a first position P1 when viewed from the right side RH in the direction of the second rotation axis O3. Specifically, the first free end 50b and the second free end 51b overlap at the first position P1. The first free end 50b and the first fixed end 50a of the armrest 50 are at approximately the same height in the up-down direction. In this state, the first longitudinal direction A in which the armrest 50 of the outer portion 5 of the chair 1 extends is approximately the same direction as the horizontal direction perpendicular to the up-down direction (vertical direction). In other words, the first longitudinal direction A is the front-to-back direction in this state, and the armrest 50 extends horizontally. Therefore, a seated occupant can rest their elbows on the armrest 50 extending in the front-to-back direction.

[0045] (second transition state) The second transition state is a state in which the armrest body 50 can be stowed when the seat occupant does not need to rest their elbows on the armrest body 50 of the outer portion 5. In the second transition state, as shown in FIG. 7 , the second free end 51b of the hanging body 51 is located at a third position PB when viewed from the direction of the second rotation axis O3. At this time, the second free end 51b and the second fixed end 51a of the hanging body 51 are both located along the longitudinal axis O1 when viewed from the direction of the second rotation axis O3. Furthermore, the second free end 51b of the hanging body 51 overlaps with the first fixed end 50a of the armrest body 50 when viewed from the direction of the second rotation axis O3. Furthermore, the first free end 50b of the armrest body 50 is located at a fourth position PA when viewed from the direction of the second rotation axis O3. At this time, the first fixed end 50a and the first free end 50b of the armrest body 50 are both located along the longitudinal axis O1 when viewed from the direction of the second rotation axis O3. That is, the first longitudinal direction A and the second longitudinal direction B in which the armrests 50 and the hangers 51 of the outer portion 5 of the chair 1 extend are both substantially the same direction as the direction in which the longitudinal axis O1 is formed, when viewed from the direction of the second rotation axis O3. In this case, the armrests 50 and the hangers 51 of the outer portion 5 overlap the front leg portions 20, when viewed from the direction of the second rotation axis O3. Therefore, the seated person can stow the outer portion 5 and eliminate the space for placing their elbows.

[0046] (Third transition state) The third transition state is a state in which the seated person can place small items on the hanging member 51 of the outer portion 5. In the third transition state, as shown in FIG. 8, the first free end 50b of the armrest 50 and the second free end 51b of the hanging member 51 are positioned at a second position P2 when viewed from the right side RH in the direction of the second rotation axis O3. Specifically, the first free end 50b and the second free end 51b overlap at the second position P2. The second free end 51b and the second fixed end 51a of the hanging member 51 are at approximately the same height in the up-down direction. In this state, the second longitudinal direction B in which the hanging member 51 of the outer portion 5 of the chair 1 extends is approximately the same direction as the horizontal direction perpendicular to the up-down direction (vertical direction). In other words, the second longitudinal direction B is the front-rear direction in this state, and the hanging member 51 extends horizontally. Therefore, the seated person can place small items on the hanging member 51 extending in the front-rear direction.

[0047] As described above, when moving from the first transition state to the third transition state, the first free end 50b of the armrest 50 of the outer portion 5 of the chair 1 can rotate from the first position P1 to the fourth position PA on the first locus K1 to the second position P2, as viewed from the direction of the second rotation axis O3. The armrest 50 moves to rotate upward UP. At this time, the second free end 51b of the hanging member 51 can rotate from the first position P1 to the third position PB on the second locus K2 to the second position P2, in conjunction with the rotation of the first free end 50b of the armrest 50. The hanging member 51 moves through the connecting portion 23 and the first fixed end 50a of the armrest 50 to rotate upward UP. When the second free end 51b of the hanging member 51 rotates, the first free end 50b of the armrest 50 rotates in conjunction with the rotation of the second free end 51b of the hanging member 51. In this way, when either the first free end portion 50b or the second free end portion 51b rotates from the first position P1 to the second position P2 as viewed from the direction of the second rotation axis O3, the other rotates in conjunction with the first position P1 to the second position P2. The armrest body 50 and the hanger body 51 are provided on the left and right sides of the chair 1. In this embodiment, the armrest body 50 and the hanger body 51 on both left and right sides rotate independently of each other.

[0048] Next, the function of the protruding portions 310 on the seat side portions 31 of the chair 1 will be described with reference to FIGS.

[0049] The chair 1 is configured to be able to transition (transform) from the in-use state shown in Fig. 2 to the folded state shown in Fig. 4. When the seat side members 31 transition (transform) from the in-use state to the folded state, the front end of the front side FR rotates upward UP around the rear end of the rear side RR as shown in Figs. 2 to 4. This causes the entire seat member 3 to transition into a roughly I-shape along the vertical direction.

[0050] As shown in FIG. 4, in the folded state, when viewed from the right side RH in the left-right direction, the front legs 20 and the rear legs 21 are arranged in a generally I-shape with their respective sides adjacent to each other along the vertical direction. The width in the front-to-rear direction between the front legs 20 and the rear legs 21 at this time is defined as the folded width W. If the seat body side sections 31 were to rotate around the first support pin 201 located on the seat body side H2 in the height direction H without sliding the first support pin 201 of the front legs 20 within the second elongated holes 311, the front side FR of the seat member 3 would protrude beyond the folded width W. In this case, the first support pin 201 of the front legs 20 is slid within the second elongated holes 311 from the seat body side H2 to the protruding side H1 in the height direction H. This allows the seat member 3 to be positioned so that it does not protrude entirely beyond the folded width W.

[0051] In this embodiment, in the first transition state, the first longitudinal direction A in which the armrest bodies 50 of the outer portion 5 of the chair 1 extend is substantially the same as the horizontal direction perpendicular to the up-down direction (vertical direction). Therefore, the seated occupant can rest their elbows on the armrest bodies 50 extending in the horizontal direction.

[0052] In this embodiment, in the second transition state, the first longitudinal direction A and the second longitudinal direction B in which the armrest 50 and the hanger 51 of the outer portion 5 of the chair 1 extend are both substantially the same direction as the direction in which the longitudinal axis O1 is formed, when viewed from the right side RH in the direction of the second rotation axis O3. Therefore, the seated person can stow the outer portion 5 to eliminate the space for placing their elbows.

[0053] In this embodiment, in the third transition state, the second longitudinal direction B in which the hanging body 51 of the outer portion 5 of the chair 1 extends is substantially the same as the horizontal direction perpendicular to the up-down direction (vertical direction). In other words, the second longitudinal direction B is the front-to-back direction in this state, and the hanging body 51 extends horizontally. Therefore, when in use, the hanging body 51 can provide a space for a seated person to hang and place small items such as a pot (cooker) or a Sierra cup. Furthermore, by providing the hanging body 51, space on a table or the like can be effectively utilized.

[0054] Furthermore, in this embodiment, in the second transition state, the second free end 51b of the hanger 51 overlaps with the first fixed end 50a of the armrest 50 when viewed from the direction of the second rotation axis O3. At this time, the first fixed end 50a of the armrest 50 is at the third position PB on the second locus K2. The shape formed by connecting the connecting portions of the armrest 50, the hanger 51, and the front leg 20 is a substantially equilateral triangle, and the armrest 50 and the hanger 51 are formed to be substantially the same length. Therefore, from the first transition state to the third transition state, the seated occupant can easily move (rotate) the armrest 50 and the hanger 51, which move (rotate) in conjunction with the armrest 50.

[0055] In this embodiment, the first elongated hole 502 has a recess 503 at its distal end 502a. The second free end 51b stops rotating when the sliding pin 513 moves to the distal end 502a. The sliding pin 513 fits into the recess 503 at the distal end 502a. Therefore, the sliding pin 513 slides to the distal end 502a, stopping the rotation of the armrest body 50 and the hanger body 51, and the recess 503 further secures the armrest body 50 and the hanger body 51 together. The recess 503 can further secure the armrest body 50 and the hanger body 51 to prevent rattling even after the rotation has stopped.

[0056] In this embodiment, when either the first free end 50b or the second free end 51b rotates from the first position P1 to the second position P2 as viewed from the right side RH in the direction of the second rotation axis O3 during the transition from the first transition state to the third transition state, the other rotates in conjunction with the first free end 50b to the second position P2. This eliminates the need to move (rotate) the armrest body 50 and the hanger body 51 separately or to attach them separately. Furthermore, space for hanging armrests, small items, and the like can be efficiently secured.

[0057] Furthermore, in this embodiment, the first fixed end 50a of the armrest 50 is connected to the front leg 20 on a higher side UP in the up-down direction (vertical direction) than the second fixed end 51a of the hanger 51. That is, in the first transition state, the armrest 50 is provided on a higher side UP than the hanger 51, and is supported by the hanger 51 and the front leg 20. Therefore, even if a force is applied to the lower side DW when the seated occupant places their elbow on the armrest 50, the armrest 50 can be maintained in a substantially horizontal state while being supported by the hanger 51 and the front leg 20.

[0058] Furthermore, in this embodiment, the first support pin 201 can be arranged in the second elongated hole 311 provided in the protruding portion 310 of the seat side portion 31 by sliding it from the seat side H2 to the protruding side H1 in the height direction H. The seat member 3 can be arranged so that, in the folded state, it does not protrude from the folding width W when viewed from the left and right. Therefore, when the chair 1 is not in use, it can be transitioned (deformed) to the folded state and folded compactly. At this time, the seat member 3 and the backrest portion 4 do not need to be contracted. The chair 1 can be easily stored in a small storage space with storage limitations.

[0059] In this embodiment, the thickness of the bearing portion 511 of the article hanger 51 is set to be approximately the same as that of the connecting portion 23 and the armrest 50 in the left-right direction, and the article hanger 51 is positioned outward of the connecting portion 23 and the armrest 50. Therefore, when the armrest 50 moves and rotates upward, it does not interfere with the connecting portion 23 and the article hanger 51 and can move smoothly.

[0060] In this embodiment, the armrests 50 and the hangers 51 on both the left and right sides rotate independently, allowing the seated person using the chair 1 to change the positions of the armrests 50 and the hangers 51 as needed depending on the situation and purpose of use, making the chair 1 easy to use.

[0061] The present invention is not limited to the above-described embodiment. The components in the embodiment include those that can be easily imagined by a person skilled in the art, those that are substantially the same, and those that fall within the so-called equivalent range. Furthermore, the components disclosed in the embodiment can be combined as appropriate.

[0062] Although one embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment and includes design modifications within the scope of the present invention. Furthermore, the components shown in the above-described embodiment and the modified examples shown below can be appropriately combined to form a configuration.

[0063] (Variation) In this embodiment, a garden chair has been described as an example of a chair, but the chair is not particularly limited and can be applied to various types of chairs. Furthermore, the chair of the present invention is not limited to being made of wood, and may be made of other materials such as iron or plastic.

[0064] In any of the above embodiments, the chair according to the present invention allows for efficient placement of small items and can be folded compactly when not in use. [Industrial Applicability]

[0065] The chair according to the present invention allows for efficient placement of small items and can be folded compactly when not in use, making it suitable for industrial use. [Explanation of symbols]

[0066] 1 chair bipedal body 20 Front legs 201 First support pin 21 Hind leg 211 Second support pin 23 Connecting part 3 Seat member 31 Side of seat (side) 310 Protrusion 311 Second long hole 5 Outer part 50 Armrest body 502 First long hole 502a Long hole tip 503 Recess 50a First fixed end 50b First free end 51 Hanging body 51a Second fixed end 51b Second free end 513 Sliding pin A First longitudinal direction B Second longitudinal direction C Short direction H Height direction H1 protruding side VP vertical plane G Floor surface K1 first trajectory K2 second trajectory O1 Longitudinal axis O2 First rotation axis (first axis) O3 Second rotation axis (second axis) P1 first position P2 2nd position PB 3rd position PA 4th position W Folding width

Claims

1. A seat member that can be sat on; a leg body having a pair of front legs supporting the seat member from both sides in the left-right direction and a pair of rear legs provided on both sides in the left-right direction; an armrest body having a first fixed end formed in a rod shape along a first longitudinal direction and rotatably connected to the front leg portion, a first free end that rotates on a first locus around a first axis that passes through the first fixed end and is perpendicular to the first longitudinal direction and along the left-right direction, and a first elongated hole that extends along the first longitudinal direction; a hanger having a rod-like shape extending along a second longitudinal direction and a second fixed end portion rotatably connected to the front leg portion, and a second free end portion which passes through the second fixed end portion and rotates on a second locus about a second axis which is perpendicular to the second longitudinal direction and extends along the left-right direction; Equipped with The second free end is connected to the armrest body so as to be slidable through the first slot of the armrest body, When one of the first free end portion and the second free end portion rotates from a first position where the first locus and the second locus intersect on one side of the front leg portion in the front-rear direction as viewed from the second axis direction to a second position where the first locus and the second locus intersect on the other side of the front leg portion in the front-rear direction, the other free end portion rotates in conjunction with the other free end portion from the first position to the second position. chair.

2. the legs are changeable from a use state in which the front legs and the rear legs are spread apart to a folded state in which the front legs and the rear legs are folded along a vertical direction, The seat member has side portions on both sides in the left-right direction, the side portion has a protruding portion that protrudes toward a protruding side in a height direction and has a second elongated hole along the height direction, the front leg portion has a support pin that rotatably connects the seat member and is slidable in the second elongated hole, The support pin is disposed at the protruding end of the second elongated hole provided on the protruding side in the folded state.

2. The chair of claim 1.

3. The second free end portion further moves to a third position where the longitudinal axis of the front leg portion intersects with the second locus when viewed from the second axial direction.

3. The chair according to claim 1 or claim 2.

4. Either the armrest or the hanger extends horizontally when the second free end is disposed at the first position or the second position.

3. The chair according to claim 1 or claim 2.

5. the hanger has a sliding pin at the second free end that is slidable relative to the first elongated hole; The first elongated hole has a recess formed at a tip end portion of the elongated hole on one side in a direction intersecting with the first longitudinal direction, the recess being capable of fitting the sliding pin to fix the hanger.

3. The chair according to claim 1 or claim 2.

6. The first fixed end of the armrest is connected to the front leg portion vertically above the second fixed end of the hanger.

3. The chair according to claim 1 or claim 2.

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