JP2023176394A - Chair - Google Patents

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

The present invention relates to a chair.

Home garden chairs have been known as chairs for outdoor use (for example, see Patent Document 1). Such a chair can be suitably used outdoors, such as in the mountains or on the beach, or on the balcony of an apartment building.

Japanese Patent Application Publication No. 2003-299546

However, the chair described in Patent Document 1 does not have a space to place small items such as a cooker or a Sierra cup. I needed to create some space. Further, although the chair described in Patent Document 1 is foldable, since it is contracted in the left-right direction and folded, the backrest and seat portions become bulky when contracted. Therefore, it has sometimes been difficult to store the chair in a storage space that has a limited storage width.

The present invention has been made in consideration of these circumstances, and an object of the present invention is to provide a chair in which small items can be efficiently arranged and which can be folded compactly when not in use.

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 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. a first fixed end portion formed in a rod shape along a first longitudinal direction and rotatably connected to the front leg portion; an armrest body having a first free end that rotates on a first trajectory about a first axis perpendicular to one longitudinal direction; and a first elongated hole extending along the first longitudinal direction; a second fixed end portion formed in a rod shape along a second longitudinal direction and rotatably connected to the front leg portion; a second free end that rotates on a second locus about an axis; the second free end is slidable in the first elongated hole of the armrest; is connected to the armrest body, and one of the first free end portion and the second free end portion is connected to the first free end portion on one side of the front leg portion in the front-rear direction when viewed from the second axis direction. When the front leg rotates from a first position where the locus intersects with the second locus to a second position where the first locus and the second locus intersect on the other side of the front leg in the longitudinal direction, the other one interlocks. and rotates from the first position to the second position.

According to the chair according to the present invention, small items can be efficiently arranged and the chair can be folded compactly when not in use.

FIG. 1 is a perspective view of a chair according to an embodiment of the present invention. It is a side view of the same chair seen from the right side. It is a front view of the same chair seen from the rear side. FIG. 3 is a perspective view showing the chair in a folded state. It is an enlarged view of the tip side in the first longitudinal direction of the first elongated hole provided in the armrest of the same chair. It is a side view of the same chair seen from the right side in the left-right direction, and is a diagram showing a first transition state of the outer part. It is a side view of the same chair seen from the right side in the left-right direction, and is a diagram showing a second transition state of the outer part. It is a side view of the chair seen from the right side in the left-right direction, and is a diagram showing a third transition state of the outer part.

One embodiment of the present invention will be described with reference to FIGS. 1 to 8. Note that in the embodiments and modified examples described below, corresponding components may be given the same reference numerals and explanations thereof may be omitted. In the following explanation, expressions indicating relative or absolute arrangement, such as "parallel", "perpendicular", "centered", and "coaxial", do not only strictly refer to such arrangement, but also refer to tolerances. It also represents a state in which the objects are relatively displaced at an angle or distance that allows the same function to be obtained.

[Chair 1]
FIG. 1 is a perspective view of a chair 1 according to an embodiment of the present invention in a used state. FIG. 2 is a side view of the chair 1 viewed from the right side RH. FIG. 3 is a front view of the chair 1 viewed from the rear side RR. FIG. 4 is a perspective view showing the chair 1 in a folded state.
The chair 1 allows a seated person (not shown) to sit on the seat member 3 in a normal posture with the legs 2 spread out in a substantially inverted V-shape along the front-rear direction (vertical direction) (hereinafter referred to as the "used state"). It is composed of The chair 1 is, for example, a wooden garden chair that can be used outdoors.

Here, as shown in FIG. 1, the chair 1 is installed on a floor surface G in a state of use. In the following description, the direction perpendicular to the floor surface G will be referred to as the up-down direction. In the vertical direction, the upper side is referred to as upper side UP, and the side opposite to upper side UP is referred to as lower side DW. Further, the direction in which a seated person sitting in a normal posture on the seat member 3 of the chair 1 faces forward and backward is defined as the front-back direction. The front-back direction is perpendicular to the up-down direction. In the front-rear direction, the direction in which the seated person faces forward is defined as the front side FR, and the opposite direction is defined as the rear side RR. Further, the direction perpendicular to the up-down direction and the front-back direction is defined as the left-right direction. In the left-right direction, one side is the left side LH, and the opposite side to the left side LH is the right side RH. In the following description, the directions of up and down, front and back, and left and right mean directions that match the directions of the seated person and the chair 1 when the seated person is seated in the seat member 3 in a normal posture. In addition, in this embodiment, the up-down direction of the chair 1 corresponds to the vertical direction.

Here, as shown in FIG. 4, the chair 1 is configured to be able to transition (deform) from the above-mentioned usage state to a folded state. In the folded state, the closed legs 2, the seat member 3, the backrest portion 4, and the outer portion 5, which will be described later, are all folded into a substantially I-shape along the vertical direction. In the following description of the configuration, unless otherwise specified, it is assumed that the chair 1 is in a used state.

The chair 1 includes legs 2, a seat member 3, a backrest 4, and an outer side 5, as shown in FIG.

[Leg body 2]
As shown in FIGS. 1 to 3, the legs 2 are opened in a substantially inverted V-shape when in use. The leg body 2 includes a front leg part 20, a rear leg part 21, a connecting part 23, and a rod-shaped part 24.

[Front leg section 20]
The front leg portion 20 is, for example, a wooden rod-shaped member extending in the vertical direction. Two front leg parts 20 are provided at a predetermined interval on both sides of the right side RH and the left side LH in the left-right direction so as to be symmetrical with respect to the vertical plane VP along the up-down direction and the front-back direction. The pair of front leg portions 20 are inclined toward the rear side RR from the lower side DW toward the upper side UP. The front leg portion 20 includes an upper end portion 20a on the upper side UP and a lower end portion 20b on the lower side DW. The lower end portion 20b is installed on the floor surface G. The front leg portion 20 also includes an elongated first support pin 201 at the center.

Here, in the following description, as shown in FIGS. 1 to 4, the longitudinal axis of the front leg portion 20 will be referred to as a longitudinal axis O1. For convenience of explanation, the longitudinal axis O1 is the longitudinal axis of the front leg section 20 on the right side RH of the pair of front leg sections 20, and only the longitudinal axis O1 of the front leg section 20 on the right side RH is illustrated. Moreover, the left side LH of the longitudinal axis O1 in the left-right direction is also referred to as the inside of the chair 1. Moreover, the right side RH 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 explained, and the description of the left side LH may be omitted because it has a symmetrical configuration with the right side RH.

As shown in FIG. 2, the first support pin 201 is arranged at a position overlapping the longitudinal axis O1 of the front leg portion 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, which will be described later, along the left-right direction with its tip facing inside 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 portion 20 . Further, the first support pin 201 can slide in the second elongated hole 311. The front leg portion 20 supports the seat member 3 from both sides in the left-right direction via the first support pin 201.

[Rear leg section 21]
The rear leg portion 21 is, for example, a wooden rod-shaped member extending in the vertical direction. The rear leg section 21 is provided on the rear side RR of the front leg section 20. The rear leg portion 21 is arranged, for example, at a position overlapping the front leg portion 20 when viewed from the front-rear direction. Similar to the front leg portions 20, the two rear leg portions 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 leg portions 21 are inclined toward the front side FR from the lower side DW toward the upper side UP. The rear leg portion 21 includes an upper end portion 21a on the upper side UP, and a lower end portion 21b on the lower side DW. The upper end portion 21a abuts the center portion of the front leg portion 20. As shown in FIG. 2, the contact portion of the upper end portion 21a is preferably cut along the shape of the side surface of the front leg portion 20, and in use, the contact portion closely contacts the side surface of the front leg portion 20. The lower end portion 21b is installed on the floor surface G. The leg opening angle of the legs 2 formed by bringing the upper ends 21a of the rear legs 21 into contact with the front legs 20 is set to an arbitrary angle according to the height of the chair 1. Further, the rear leg portion 21 includes a second support pin 211 on the upper side UP.

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

The connecting portion 23 connects the front leg portion 20 and the rear leg portion 21. The connecting portions 23 are, for example, like the front leg portions 20 and the rear leg portions 21, two wooden rod-shaped members provided on both sides in the left-right direction so as to be symmetrical with respect to the vertical plane VP. In use, the connecting portion 23 extends from the front side FR in the front-rear direction toward the rear side RR so as to be slightly inclined upwardly UP. The connecting part 23 is arranged on the outer side of the chair 1 than the front leg part 20 and the rear leg part 21.

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 portion of the front leg portion 20 and the base end side 23a of the connecting portion 23. Further, the connecting portion 23 includes a second connecting pin 232 on the distal end side 23b. The second connecting pin 232 connects the upper end portion 21a of the rear leg portion 21 and the distal 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, respectively. In this embodiment, the first connecting pin 231 is connected to the front leg portion 20 slightly above the first support pin 201 UP. Further, the second connecting pin 232 is connected to the rear leg portion 21 slightly above the second support pin 211 UP.

The rod-shaped portion 24 extends in the left-right direction, as shown in FIG. 1 or 3. 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 connects both ends in the left-right direction to the lower end portions 20b of the pair of front leg portions 20. The rear rod-shaped portion 242 connects both ends in the left-right direction to the lower ends 21b of the pair of rear leg portions 21. With this configuration, the rod-shaped portion 24 can hold the chair 1 so that the balance of the chair 1 is not lost due to misalignment of the pair of front and rear legs 20 and 21 in each of the up-down, front-back, and left-right directions. Note that a plurality of 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.

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

The front and rear portions 30 of the seat body are wooden rod-shaped members provided on both sides in the front-rear direction. The seat body front and rear portions 30 extend along the left-right direction. As shown in FIG. 1, the seat front and rear portion 30 includes a seat front portion 301 on the front side FR and a seat body rear portion 302 on the rear side RR.

Two seat body side parts 31 (side parts) are provided on both sides in the left-right direction so as to be symmetrical with respect to the vertical plane VP. The seat body side portion 31 is formed into a substantially plate shape in the longitudinal direction along the front-rear direction and the height direction (short side direction) H along the up-down direction when in use. A front end portion of the front side FR of the seat body side portion 31 connects both ends of the seat body front portion 301. A rear end portion of the rear side RR of the seat side portion 31 connects both ends of the seat rear portion 302. Of the pair of seat body side parts 31, the right RH seat body side part 31 is arranged inside the chair 1 rather than the front leg part 20 and the connecting part 23. Therefore, as shown in FIG. 3, the seat body side portion 31, the front leg portion 20, and the connecting portion 23 are configured in this order from the inside to the outside of the chair 1. Note that the left side LH seat body side portion 31 has a symmetrical configuration with the right side RH seat body side portion 31, so a description thereof will be omitted.

The seat body side portion 31 is supported at its center by the first support pin 201 of the front leg portion 20 . In addition, the seat body side portion 31 has a rear end portion of the rear side RR supported by a second support pin 211 of the rear leg portion 21 . When the seat body side portion 31 transitions (deforms) from the usage state to the folded state, as shown in FIGS. 1 to 4, the front end of the front FR rotates to the upper side UP around the rear end of the rear RR. . Then, the entire seat member 3 transitions into a substantially I-shape along the vertical direction. Further, as shown in FIG. 2, the seat body side portion 31 includes a protrusion portion 310 that protrudes along the height direction (lateral direction) H in the vertical plane VP.

The protruding portion 310 is provided at the center of the seat body side portion 31. The protruding portion 310 protrudes toward the protruding side H1 in the height direction H. Here, the side opposite to the protruding 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 vertical direction in the use state. At this time, the protruding side H1 is the lower side DW, and the seat body side H2 is the upper side UP. Moreover, the height direction H of the protrusion 310 is along the front-rear direction in the folded state, as shown in FIG. At this time, the protruding side H1 is the front side FR, and the seat body side H2 is the rear side RR. The protrusion 310 includes a second elongated hole 311 .

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

The first seat part 32 and the second seat part 33 are parts on which a seated person sits, as shown in FIG. In this embodiment, the first seat portion 32 and the second seat portion 33 are made of cloth. The first seat portion 32 has both ends 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 to be in contact with the first seat portion 32 at an upper side UP than the first seat portion 32 . The second seat portion 33 has both ends wrapped around and connected to the front and rear portions of the seat body 30 in the front-rear direction. The first seat portion 32 and the second seat portion 33 are formed in a cross shape. With this configuration, it is possible to support the weight (force) applied downward when a seated person sits on the seat member 3, and the strength of the seat member 3 as a whole can be increased.

[Backrest part 4]
As shown in FIGS. 1 to 3, the backrest portion 4 has both ends wrapped around and connected to the upper side UP of the pair of front leg portions 20 in the left-right direction in the left-right direction. The backrest portion 4 is made of cloth, for example. In addition, as shown in FIG. 3, the backrest portion 4 includes a rod-shaped member 40 that extends in the left-right direction on the rear side RR of the backrest portion 4 and connects the upper end portions 20a of the pair of front leg portions 20 in the left-right direction at both ends. may be provided. The rod-shaped member 40 can increase the strength of the backrest portion 4 and further increase the strength of the chair 1 as a whole.

[Outer part 5]
The outer part 5 is an outer frame of the chair 1 that can be used as an armrest for the seated person or as a storage space for small items. The outer part 5 includes an armrest body 50 and a hanging body 51. Note that, similarly to the leg body 2, in the following description, the configuration of the right side RH in the left-right direction will be mainly explained, and the description of the left side LH will be omitted as it has a symmetrical configuration with the right side RH. do.

Here, the first longitudinal direction A, which will be described later, is the longitudinal direction of the armrest body 50. Similarly, the second longitudinal direction B is the longitudinal direction of the hanging body 51. In this embodiment, the first longitudinal direction A and the second longitudinal direction B are both directions along the vertical plane VP. However, the first longitudinal direction A and the second longitudinal direction B do not have to be along the vertical plane VP.

[Armrest body 50]
The armrest body 50 is a rod-shaped member extending along the first longitudinal direction A, as shown in FIG. 1 or 2 . The armrest body 50 is capable of resting the elbow of the seated person when the seated person is seated. The armrest 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, for example, approximately the same as that of the connecting portion 23.

The armrest body 50 includes a first pivot pin 501 at a first fixed end portion 50a on the proximal end side A1 in the first longitudinal direction A. The first pivot pin 501 connects the first fixed end portion 50a of the armrest 50 and the center portion of the front leg portion 20. The armrest 50 rotates around a first fixed end 50a provided with a first rotation pin 501. At this time, an axis passing through the first fixed end portion 50a, perpendicular to the first longitudinal direction A, and extending in 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 arranged along the longitudinal axis O1 when viewed from the right side RH in the left-right direction. The first free end 50b of the tip side A2 in the first longitudinal direction A of the armrest body 50 passes along a first trajectory K1 (see FIG. 6), which will be described later, formed in an arc shape with the first rotation axis O2 as the center. Rotate. Note that the first pivot pin 501 is provided above the first connecting pin 231 of the connecting portion 23 in the front leg portion 20 UP. Moreover, the armrest body 50 is provided with a first elongated hole 502 that penetrates in the left-right direction along the first longitudinal direction A.

FIG. 5 is an enlarged view of the tip end side A2 in the first longitudinal direction A of the first elongated hole 502 provided in the armrest 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 along the first longitudinal direction A from the first fixed end 50a to the first free end 50b. Specifically, as shown in FIG. 2, the first elongated hole 502 is formed so as to be slightly inclined downward DW from the rear side RR toward the front side FR with respect to the armrest body 50. With this configuration, the angle of the armrest 50 can be adjusted. As shown in FIG. 5, the first elongated hole 502 includes a recess 503 at the elongated hole tip 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 50. The first elongated hole 502 may be formed parallel to the armrest 50.

The recess 503 is a part of the first elongated hole 502, and is 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. Ru.

[Hanging body 51]
The hanging body 51 is a rod-shaped member extending along the second longitudinal direction B, as shown in FIGS. 1 to 4. The hanging body 51 is arranged on the outside of the chair 1 rather than the armrest body 50. The hanging body 51 can provide a space for the seated person to hang small items such as a cooker or a Sierra cup. The hanging body 51 is rotatably connected to the front leg portion 20.

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

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

The hanging body 51 rotates around the second fixed end portion 51a where the bearing portion 511 is disposed. At this time, an axis passing through the second fixed end portion 51a, perpendicular to the second longitudinal direction B, and extending in 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 are not limited thereto. Further, as shown in FIG. 2, the second rotation axis O3 is arranged along the longitudinal axis O1 when viewed from the left and right direction. That is, as shown in FIG. 2, the first rotation axis O2 and the second rotation axis O3 are both arranged along the longitudinal axis O1 when viewed from the left and right direction. The hanging body 51 also includes a sliding pin 513 at the second free end 51b on the tip side B2 in the second longitudinal direction B.

As shown in FIG. 2, the sliding pin 513 is attached to the hook 51 at the second free end 51b so as to be slidable in the first elongated hole 502. The sliding pin 513 is inserted into the first elongated hole 502 of the armrest 50 along the left-right direction with its tip facing inside the chair 1. The second free end portion 51b rotates on a second locus K2 (described later) formed in an arc shape around the second rotation axis O3 (see FIG. 6), and also connects the armrest body 50 via a sliding pin 513. It is connected to the armrest body 50 so as to be slidable through the first elongated hole 502 of the armrest body 50 . Further, the first elongated hole 502 extends from the first fixed end 50a to the first free end 50b. Therefore, the second free end portion 51b moves (rotates) from the first fixed end portion 50a of the armrest body 50 to the first free end portion 50b via the sliding pin 513, and connects the armrest body 50 with the second free end portion 51b. It can be linked with the hanging body 51. Note that the sliding pin 513 stops rotating when it moves to the elongated hole tip 502a of the first elongated hole 502. Moreover, the sliding pin 513 is fitted into and fixed in the recess 503 of the elongated hole tip 502a.

[Effect]
Next, the function of the chair 1 described above will be explained using FIGS. 4 and 6 to 8. FIG. 6 is a side view of the chair 1 viewed from the right side RH in the left-right direction, and is a diagram showing the first transition state of the outer part 5. FIG. 7 is a side view of the chair 1 viewed from the right side RH in the left-right direction, and is a diagram showing the second transition state of the outer part 5. FIG. 8 is a side view of the chair 1 viewed from the right side RH in the left-right direction, and is a diagram showing the third transition state of the outer part 5.
First, a first transition state, a second transition state, and a third transition state of the outer portion 5 of the chair 1 according to an embodiment of the present invention will be described with reference to FIGS. 6 to 8. In this embodiment, the first transition state, the second transition state, and the third transition state will be described in the case of the chair 1 in use, but are not particularly limited. For example, they may be in the case of the chair 1 in the folded state. There may be.

Here, as shown in FIG. 6, the first locus K1 is the locus of the first free end portion 50b of the armrest body 50 formed in an arc shape with the first rotation axis O2 as the center. Moreover, as shown in FIG. 6, the second trajectory K2 is a trajectory of the second free end portion 51b of the hook body 51 formed in an arc shape with the second rotation axis O3 as the center. A first position P1 is a position where the first locus K1 and the second locus K2 intersect on one side of the longitudinal axis O1 of the front leg portion 20 in the front-rear direction when viewed from the direction of the second rotation axis O3. In this embodiment, as shown in FIG. 6, the first position P1 is located on the front side FR in the front-rear direction when viewed from the right side RH in the direction of the second rotation axis O3. However, the first position P1 is not limited to this embodiment, and the first position P1 may be arranged on the rear side RR in the front-rear direction when viewed from the second rotation axis O3 direction. Further, 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 the other side in the longitudinal direction of the longitudinal axis O1 of the front leg portion 20 is defined as a second position P2. In this embodiment, as shown in FIG. 8, the second position P2 is the rear side RR opposite to the front side FR in the front-rear direction where the first position P1 is arranged, when viewed from the right side RH in the direction of the second rotation axis O3. will be placed in In addition, when the first position P1 is arranged at the rear side RR in the longitudinal direction when viewed from the direction of the second rotation axis O3, the second position P2 is arranged at the front side FR in the longitudinal direction. Furthermore, as shown in FIG. 7, the position where the second trajectory K2 intersects with the longitudinal axis O1 is defined as a third position PB when viewed from the direction of the second rotation axis O3. Further, when viewed from the direction of the second rotation axis O3 along the left-right direction, the position where the first locus K1 intersects with the longitudinal axis O1 is defined as a fourth position PA.

(first transition state)
The first transition state is a state in which the seated person can place his or her elbow 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 object 51 are separated from each other when viewed from the right side RH in the direction of the second rotation axis O3. and is placed at the first position P1. Specifically, the first free end 50b and the second free end 51b overlap at the first position P1. Further, the first free end 50b and the first fixed end 50a of the armrest 50 are at substantially the same height in the vertical direction. At this time, the first longitudinal direction A in which the armrest 50 of the outer part 5 of the chair 1 extends is approximately the same direction as the horizontal direction perpendicular to the up-down direction (vertical direction). That is, the first longitudinal direction A is the front-rear direction in this state, and the armrest 50 extends in the horizontal direction. Therefore, the seated person can place his or her elbows on the armrests 50 that extend in the front-rear direction.

(Second transition state)
The second transition state is a state in which the armrest 50 can be stored when the seated person does not need to rest his or her elbow on the armrest 50 of the outer portion 5. In the second transition state, as shown in FIG. 7, the second free end 51b of the hanging object 51 is arranged at the 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 arranged along the longitudinal axis O1 when viewed from the direction of the second rotation axis O3. Further, the second free end 51b of the hanger 51 overlaps the first fixed end 50a of the armrest 50 when viewed from the second rotation axis O3. Moreover, the first free end 50b of the armrest 50 is arranged at the 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 50 are both arranged 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 armrest 50 and the hanging object 51 of the outer part 5 of the chair 1 extend are both longitudinal axes when viewed from the direction of the second rotation axis O3. This is substantially the same direction as the direction in which O1 is formed. At this time, the armrest body 50 and the hanging body 51 of the outer part 5 overlap the front leg part 20 when viewed from the direction of the second rotation axis O3. Therefore, the seated person can store the outer portion 5 and eliminate the space for placing his or her elbows.

(Third transition state)
The third transition state is a state in which the seated person can place small items etc. on the hanging body 51 of the outer part 5. In the third transition state, as shown in FIG. 8, the first free end 50b of the armrest body 50 and the second free end 51b of the hanging body 51 are located on the right side RH in the direction of the second rotation axis O3. and is placed at the second position P2. Specifically, the first free end 50b and the second free end 51b overlap at the second position P2. Further, the second free end 51b and the second fixed end 51a of the hanging body 51 are at substantially the same height in the vertical direction. At this time, the second longitudinal direction B in which the hanging body 51 of the outer part 5 of the chair 1 extends is substantially the same direction as the horizontal direction perpendicular to the up-down direction (vertical direction). That is, the second longitudinal direction B is the front-rear direction in this state, and the hanging body 51 extends in the horizontal direction. Therefore, the seated person can place small items etc. on the hanging body 51 extending in the front-rear direction.

As described above, from the first transition state to the third transition state, the first free end 50b of the armrest 50 of the outer part 5 of the chair 1 is on the first trajectory K1 when viewed from the second rotation axis O3 direction. can be rotated from a first position P1 through a fourth position PA to a second position P2. The armrest body 50 rotates to the upper side UP. At this time, the second free end 51b of the armrest 51 moves from the first position P1 to the third position PB on the second trajectory K2 in conjunction with the rotation of the first free end 50b of the armrest 50. can be rotated to the second position P2. The hanging body 51 moves through the connecting portion 23 and the first fixed end portion 50a of the armrest body 50 so as to rotate upwardly UP. When the second free end 51b of the hanger 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 hanger 51. do. In this way, when one of the first free end portion 50b and the second free end portion 51b rotates from the first position P1 to the second position P2 when viewed from the second rotation axis O3 direction, the other one rotates. Interlockingly, it rotates from the first position P1 to the second position P2. Note that the armrest 50 and the hanging object 51 are provided on the left and right sides of the chair 1. In this embodiment, the armrest 50 and the hanger 51 on both sides in the left-right direction rotate independently.

Next, the function of the protruding portion 310 of the seat body side portion 31 of the chair 1 described above will be explained with reference to FIGS. 2 and 4.

The chair 1 is configured to be able to transition (deform) from the usage state shown in FIG. 2 to the folded state shown in FIG. 4 . When the seat body side portion 31 transitions (deforms) from the usage state to the folded state, as shown in FIGS. 2 to 4, the front end portion of the front side FR is rotated to the upper side UP around the rear end portion of the rear side RR. . Then, the entire seat member 3 transitions into a substantially I-shape along the vertical direction.

Here, as shown in FIG. 4, in the folded state, when viewed from the right side RH in the left-right direction, the front leg portion 20 and the rear leg portion 21 have side surfaces adjacent to each other and form a substantially I-shape along the vertical direction. arranged in a shape. The width of the front leg part 20 and the rear leg part 21 at this time in the front-rear direction is defined as the folded width W. The seat body side part 31 rotates around the first support pin 201 disposed on the seat body side H2 in the height direction H without sliding the first support pin 201 of the front leg part 20 within the second elongated hole 311. When the seat member 3 is moved, the front side FR of the seat member 3 protrudes from the folded width W to the front side FR in the folded state. At this time, the first support pin 201 of the front leg portion 20 is disposed within the second elongated hole 311 so as to slide from the seat body side H2 in the height direction H to the protrusion side H1. Then, the seat member 3 can be arranged so that the seat member 3 does not entirely protrude from the folded width W.

In this embodiment, in the first transition state, the first longitudinal direction A in which the armrest 50 of the outer part 5 of the chair 1 extends is approximately the same direction as the horizontal direction perpendicular to the up-down direction (vertical direction). be. Therefore, the seated person can place his or her elbows on the armrests 50 that extend in the horizontal direction.

Further, in the present embodiment, in the second transition state, the first longitudinal direction A and the second longitudinal direction B in which the armrest body 50 and the hanging body 51 of the outer part 5 of the chair 1 extend are rotated in the second rotation state. When viewed from the right side RH in the direction of the axis O3, both are substantially the same direction as the direction in which the longitudinal axis O1 is formed. Therefore, the seated person can store the outer portion 5 and eliminate the space for placing his or her elbows.

Further, in the present embodiment, in the third transition state, the second longitudinal direction B in which the hanging body 51 of the outer part 5 of the chair 1 extends is approximately the horizontal direction perpendicular to the up-down direction (vertical direction). Same direction. That is, the second longitudinal direction B is the front-rear direction in this state, and the hanging body 51 extends in the horizontal direction. Therefore, the hanging body 51 can provide a space for a seated person to hang small items such as a cooker or a Sierra cup when in use. Furthermore, by providing the hanging body 51, the space of the table etc. can be effectively utilized.

Furthermore, in the present embodiment, in the second transition state, the second free end 51b of the hanger 51 overlaps 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 trajectory K2. The shape formed by connecting the connecting portions of the armrest body 50, the hanger body 51, and the front leg portion 20 is a substantially equilateral triangular shape, and the armrest body 50 and the hanger body 51 are formed to have approximately the same length. There is. Therefore, from the first transition state to the third transition state, the seated person can easily move (rotate) the armrest 50 and the object rack 51 that moves (rotates) in conjunction with the armrest 50. I can do it.

Furthermore, in this embodiment, the first elongated hole 502 includes a recess 503 at the elongated hole tip 502a. The second free end 51b stops rotating when the sliding pin 513 moves to the elongated hole tip 502a. Furthermore, the sliding pin 513 fits into the recess 503 of the elongated hole tip 502a. Therefore, the sliding pin 513 slides to the elongated hole tip 502a, stops the rotation of the armrest body 50 and the hanger body 51, and further fixes them by the recess 503. The recess 503 can further fix the armrest 50 and the hanger 51 so that they do not wobble even after they stop rotating.

Further, in the present embodiment, from the first transition state to the third transition state, either the first free end portion 50b or the second free end portion 51b is , when it rotates from the first position P1 to the second position P2, the other rotates in conjunction with it from the first position P1 to the second position P2. Therefore, there is no need to move (rotate) the armrest body 50 and the hanging body 51 separately or to attach them separately. In addition, it is possible to efficiently secure a space for hanging elbows, small items, etc.

In the present embodiment, the first fixed end 50a of the armrest 50 is connected to the front leg 20 at an upper side UP in the up-down direction (vertical direction) than the second fixed end 51a of the hanger 51. Ru. That is, in the first transition state, the armrest body 50 is provided above the hanging body 51 and is supported by the hanging body 51 and the front leg portion 20. Therefore, even if a force is applied to the lower side DW when a seated person places an elbow on the armrest 50, the armrest 50 maintains a substantially horizontal state while being supported by the hanging object 51 and the front leg portion 20. be able to.

Moreover, in this embodiment, the first support pin 201 is slid in the second elongated hole 311 provided in the protrusion 310 of the seat body side part 31 from the seat body side H2 in the height direction H to the protrusion side H1. can be placed. In the folded state, the seat member 3 can be arranged so as not to protrude from the folded width W when viewed from the left and right direction. Therefore, when the chair 1 is not in use, the chair 1 can be transitioned (deformed) to a folded state and folded compactly. Further, 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 narrow storage space with limited storage space.

Further, in the present embodiment, the thickness of the bearing portion 511 of the hanging body 51 is set to be approximately the same as that of the connecting portion 23 and the armrest body 50 in the left-right direction, 23 and the armrest 50. Therefore, when the armrest body 50 rotates to the upper side UP, it can move smoothly without interfering with the connecting portion 23 and the hanging body 51.

Furthermore, in this embodiment, the armrest 50 and the hanger 51 on both sides in the left-right direction rotate independently. Therefore, the seated person using the chair 1 can change the positions of the armrest 50 and the hanging object 51 as appropriate depending on the situation and purpose of use, making it convenient to use.

Note that the present invention is not limited to the above embodiment. Further, the components in one embodiment include those that can be easily imagined by those skilled in the art, those that are substantially the same, and those that are in the so-called equivalent range. Furthermore, the components disclosed in one embodiment can be combined as appropriate.

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 may include design changes without departing from the gist of the present invention. Moreover, the components shown in the above-mentioned embodiment and the modified examples shown below can be configured by appropriately combining them.

(Modified example)
Although the present embodiment has been described using a garden chair as an example of the chair, 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.

In any of the above embodiments, the chair according to the present invention allows small items to be placed efficiently and can be folded compactly when not in use.

According to the chair according to the present invention, small items can be arranged efficiently and it can be folded compactly when not in use, so that it can be used industrially.

1 Chair 2 Leg body 20 Front leg part 201 First support pin 21 Rear leg part 211 Second support pin 23 Connecting part 3 Seat member 31 Seat body side part (side part)
310 Projection part 311 Second elongated hole 5 Outer part 50 Armrest body 502 First elongated hole 502a Elongated hole tip part 503 Recessed part 50a First fixed end part 50b First free end part 51 Hang object 51a Second fixed end part 51b Two free ends 513 Sliding pin A First longitudinal direction B Second longitudinal direction C Transverse direction H Height direction H1 Projecting side VP Vertical surface G Floor surface K1 First locus K2 Second locus O1 Longitudinal axis O2 First rotation Axis (first axis)
O3 Second rotation axis (second axis)
P1 First position P2 Second position PB Third position PA Fourth position W Folding width

Claims (6)

a seat member on which the user can sit;
A leg body having a pair of front legs that support 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;
a first fixed end portion formed in a rod shape along a first longitudinal direction and rotatably connected to the front leg portion; an armrest body having a first free end portion that rotates on a first trajectory around an axis; and a first elongated hole extending along the first longitudinal direction;
a second fixed end portion formed in a rod shape along a second longitudinal direction and rotatably connected to the front leg portion; a second free end that rotates on a second trajectory around an axis;
Equipped with
The second free end portion is connected to the armrest so that it can slide through the first elongated hole of the armrest,
One of the first free end portion and the second free end portion is configured such that the first trajectory and the second trajectory are different from each other on one side of the front leg portion in the front-rear direction when viewed from the second axis direction. When the first locus and the second locus intersect on the other side of the front leg in the front-back direction from the first position where they intersect, when the other side rotates from the first position to the second position where the first locus and the second locus intersect, the other side rotates from the first position to the second position. A chair that rotates into two positions. The leg body can be changed from a usage state in which the front leg part and the rear leg part are opened to a folded state in which the front leg part and the rear leg part are folded along the vertical direction,
The seat member includes side portions on both sides in the left-right direction,
The side portion has a protruding portion that protrudes toward the protruding side in the height direction and includes a second elongated hole along the height direction,
The front leg part has a support pin that rotatably connects the seat member and is slidable in the second elongated hole,
The chair according to claim 1, wherein the support pin is arranged at a protruding end of the second elongated hole provided on the protruding side in the folded state. The chair according to claim 1 or 2, wherein the second free end further moves to a third position where the longitudinal axis of the front leg and the second locus intersect, when viewed from the second axis direction. Either one of the armrest body and the object hanging body extends in the horizontal direction in a state in which the second free end portion is disposed at the first position or the second position. The chair according to claim 2. The hanging body has a sliding pin at the second free end that is slidable with respect to the first elongated hole,
The first elongated hole is formed at the tip of the elongated hole on the distal end side in the first longitudinal direction, on one side in a direction intersecting the first longitudinal direction, and the sliding pin is fitted into the first elongated hole. The chair according to claim 1 or 2, comprising a recessed portion to which a body can be fixed. The chair according to claim 1 or 2, wherein the first fixed end of the armrest is connected vertically above the second fixed end of the object rack in the front leg.

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