CN210204052U

CN210204052U - Folding chair

Info

Publication number: CN210204052U
Application number: CN201920595272.9U
Authority: CN
Inventors: Shigeo Nishijo; 西條繁生; Makoto Hayashi; 林诚; Masayuki Terajima; 寺岛正之
Original assignee: Panasonic Corp
Current assignee: Panasonic Corp
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-03-31
Anticipated expiration: 2029-04-26

Abstract

The utility model provides a folding seat. The folding seat includes a seat portion and a support leg assembly for supporting the seat portion from below the seat portion, the support leg assembly being deployable and foldable to enable the folding seat to be converted between a deployed state and a folded state, the support leg assembly including a plurality of support legs, the plurality of support legs including: a plurality of front support legs arranged side by side in a width direction of the folding seat; and a plurality of rear support legs arranged side by side in the width direction, each rear support leg being connected to each front support leg in a manner rotatable relative to each other, each rear support leg being arranged in a cross-like configuration with each front support leg when the folding seat is in the folded state as viewed in the width direction of the folding seat, so that the folding seat can stand by itself when the folding seat is in the folded state. Therefore, the folding seat can still stably stand only by depending on the structure of the folding seat when being in a folding state, and is convenient to store.

Description

Folding chair

Technical Field

The present invention relates to the field of seats, and more particularly to a folding seat that can be switched between a folded state and an unfolded state.

Background

The prior art has a variety of seats, and the folding seat is widely used in places such as bathrooms and the like by people due to the advantages of relative convenience in use, convenience in carrying and storage and the like. However, the conventional folding seat cannot stand only by its own structure in the folded state, and is extremely unstable even if it stands only by its own structure in the folded state, thereby causing inconvenience in storage of the folding seat in the folded state and causing an excessive space for storing the folding seat even in the case where the storage posture is not proper.

SUMMERY OF THE UTILITY MODEL

Make based on above-mentioned prior art's defect the utility model discloses, the utility model aims to provide an improved folding seat chair, this folding seat chair can still only rely on the stable in structure of self to stand when being in fold condition to conveniently deposit, can not waste the parking space.

In order to achieve the above object, the present invention provides a folding seat comprising a seat portion and a support leg assembly for supporting the seat portion from below the seat portion, the support leg assembly being capable of being unfolded and folded so that the folding seat can be switched between an unfolded state and a folded state, characterized in that the support leg assembly comprises a plurality of support legs including: a plurality of front support legs arranged side by side in a width direction of the folding seat; and a plurality of rear support legs arranged side by side in the width direction, each of the rear support legs being connected to each of the front support legs so as to be rotatable relative to each other, each of the rear support legs being arranged to intersect with each of the front support legs when the folding seat is in the folded state as viewed in the width direction of the folding seat, so that the folding seat can stand by itself when the folding seat is in the folded state.

Preferably, each of the front support legs includes a front support leg main body of a bent rod shape and the support foot mounted to the front support leg main body from below the front support leg main body, and each of the rear support legs includes a rear support leg main body of a bent rod shape and the support foot mounted to the rear support leg main body from below the rear support leg main body.

Preferably, the front support leg main body comprises a front support leg upper portion, a front support leg connecting portion and a front support leg lower portion in sequence from top to bottom in the height direction of the folding seat, the front support leg upper portion and the front support leg lower portion are both straight rod-shaped, and the front support leg connecting portion is bent rod-shaped; and the back supporting leg main part is in from last back supporting leg upper portion, back supporting leg connecting portion and back supporting leg lower part of including down in order on the direction of height of folding seat, back supporting leg upper portion with back supporting leg lower part is straight rod-like, back supporting leg connecting portion are crooked shaft-like, are connected each other in a pair of preceding supporting leg with in the back supporting leg, preceding supporting leg upper portion with back supporting leg upper portion rotates each other and is connected.

Preferably, in a pair of the front support leg and the rear support leg connected to each other, the front support leg upper portion and the rear support leg upper portion form an X-shaped structure, and the front support leg lower portion and the rear support leg lower portion are arranged so as to coincide with a height direction of the folding seat, when viewed in a width direction of the folding seat when the folding seat is in the folded state.

Preferably, when the folding seat is in the unfolded state, viewed along the width direction of the folding seat, the front support leg main body and the rear support leg main body form an X-shaped structure, an acute angle formed by the upper portion of the front support leg and the height direction is larger than an acute angle formed by the lower portion of the front support leg and the height direction, and an acute angle formed by the upper portion of the rear support leg and the height direction is larger than an acute angle formed by the lower portion of the rear support leg and the height direction.

Preferably, when the folding seat is in the folded state and the unfolded state, a perpendicular line drawn from a center of gravity of the folding seat and perpendicular to a support surface supporting the plurality of support legs may be a point P on the support surface, the point P being located in a support area on the support surface surrounded by a line connecting support portions of the plurality of support legs abutting the support surface.

Preferably, the front and rear leg bodies each have a hollow structure, and the support foot is installed to the front and rear leg bodies by being partially inserted into the front and rear leg bodies, respectively.

Preferably, the plurality of support legs each include a support foot portion configured to abut against the support surface, the support foot portion includes a first abutting surface and a second abutting surface, the first abutting surface and the second abutting surface are both flat surfaces and form a predetermined angle with the first abutting surface, the first abutting surface of each support foot portion is configured to abut against the support surface when the folding seat is in the unfolded state, each first abutting surface is located in the same plane when the folding seat is in the unfolded state, the second abutting surface of each support foot portion is configured to abut against the support surface when the folding seat is in the folded state, and each second abutting surface is located in the same plane when the folding seat is in the folded state.

Preferably, the support leg assembly further includes a first support beam, a second support beam, a third support beam and a fourth support beam, the first support beam set up in between the front support leg connecting portions, the second support beam set up in between the rear support leg upper portions, and with the seat portion can round the second support beam pivoted mode install in the seat portion, the third support beam set up in between the front support leg upper portions, the fourth support beam set up in between the rear support leg connecting portions.

Preferably, when the folding seat is in the unfolded state, the third support beam is stored in a storage portion provided in the seat portion and is engaged with a hook provided in the seat portion, and when the folding seat is in the folded state, the third support beam is separated from the storage portion and is released from engagement with the hook.

By adopting the technical scheme, the utility model provides a modified folding seat can still be in the cross state through preceding supporting leg and back supporting leg when making folding seat be in fold condition to realized that folding seat still can only rely on the stable in structure of self to stand when being in fold condition, thereby conveniently deposit, can not waste the parking space.

Drawings

Fig. 1 is a schematic front view showing a folded seat according to a first embodiment of the present invention in a deployed state.

Fig. 2 is a side view schematically showing the folding seat in fig. 1 in a deployed state.

Fig. 3 is a schematic rear view showing a deployed state of the folding seat in fig. 1.

Fig. 4 is a schematic bottom view showing the folding seat in fig. 1 in a deployed state.

Fig. 5 is a schematic top view showing the folding seat in fig. 1 in a deployed state.

Fig. 6 is a perspective view illustrating a deployed state of the folding seat in fig. 1.

Fig. 7 is another perspective view illustrating a deployed state of the folding seat in fig. 1.

Fig. 8 is still another perspective view illustrating a deployed state of the folding seat in fig. 1.

Fig. 9 is still another perspective view illustrating a deployed state of the folding seat in fig. 1.

Fig. 10 is a schematic front view showing a folded seat according to a second embodiment of the present invention in a deployed state.

Fig. 11 is a side schematic view showing the folded seat in fig. 10 in a deployed state.

Fig. 12 is a schematic perspective view showing a deployed state of the folding seat in fig. 10.

Fig. 13 is another perspective view illustrating a deployed state of the folding seat in fig. 10.

Fig. 14 is a side schematic view showing the folding seat in fig. 10 in a folded state.

Fig. 15 is a perspective view illustrating the folding seat in fig. 10 in a folded state.

Description of the reference numerals

1 seat 11, seat surface 12, bottom surface 13, grip 14, through hole 15, recess

Front support leg body 2111 front support leg upper portion 2112 front support leg connection portion 2113 front support leg lower portion 212 front support leg body 2121 first abutment surface 2122 second abutment surface 22 rear support leg 221 rear support leg body 2211 rear support leg upper portion 2212 rear support leg connection portion 2213 rear support leg lower portion 222 rear support leg portion 223 abutment portion 23 first support beam 24 second support beam 25 third support beam 26 fourth support beam

3 the latch mechanism 31 take in the department 32 hook 33 operation department 34 transmission cable

4 connector 41 connector body 42 positioning projection

5 Back 51 Back body 52 handle 53 through hole

F height direction of width direction W in front-back direction

Detailed Description

Hereinafter, specific embodiments of the folding seat according to the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise specified, the height direction, the width direction, and the front-rear direction described in the present invention refer to the height direction H, the width direction W, and the front-rear direction F of the folding seat, respectively. In the following description of the embodiment, the height direction H of the folding seat means the vertical direction in fig. 1 and 10, the width direction W of the folding seat means the horizontal direction in fig. 1 and 10, and the front-rear direction F of the folding seat means the horizontal direction in fig. 2 and 11.

(first embodiment)

As shown in fig. 1 to 9, the folding seat according to the first embodiment of the present invention includes a seat portion 1, a support leg assembly 2, a latch mechanism 3, and a connecting member 4, wherein the support leg assembly 2 can be unfolded and folded in the front-rear direction F so that the folding seat can be switched between an unfolded state and a folded state.

When the folding seat is in the unfolding state, the size of the supporting leg assembly 2 in the front-back direction F is the largest, the supporting leg assembly 2 forms a stable structure supporting frame to support the seat part 1, and the seat part 1 is approximately parallel to a supporting surface for supporting the folding seat and is clamped with the supporting leg assembly 2 through the clamping mechanism 3 to maintain the unfolding state.

After releasing the latch between the latch mechanism 3 and the support leg assembly 2, the folding seat can be converted from the unfolded state to the folded state.

When the folding seat is in the folded state, the dimension of the support leg assembly 2 in the front-rear direction F is minimized, so that the volume of the entire folding seat is reduced for storage and transportation, at which time the latch mechanism 3 has been released from the latch with the support leg assembly 2 and the seat portion 1 is at a predetermined angle, for example, 90 degrees, with the support surface to ensure that the volume of the entire folding seat is sufficiently small.

The specific structure of each component of the folding seat will be specifically described below.

The seat part 1 serves to support the weight of the user when the folding seat is in the unfolded state.

In the present embodiment, the seat 1 is substantially flat plate-shaped and the width of the seat 1 in the width direction W gradually decreases from the front toward the rear in the front-rear direction F, and the edges of the seat 1 are each formed in a rounded shape to avoid damage to other articles or the user due to accidental impacts or the like. The seat 1 includes a seat surface 11 facing upward in the height direction H and a bottom surface 12 facing downward in the height direction H. The seat surface 11 is used for seating a user, and the bottom surface 12 is used for connecting with the supporting leg assembly 2.

In the present embodiment, as shown in fig. 4 and 5, the seat portion 1 is formed with a plurality of (2 in the illustrated example) through holes 14 penetrating the seat portion 1. Thus, when the folding seat of the present invention is used in a bathroom, water splashed on the seat unit 1 can be discharged through the through hole 14 by providing the through hole 14.

In the present embodiment, as shown in fig. 3 to 5, a grip portion 13 is formed at the rear portion of the seat portion 1 by forming a long through hole penetrating the seat portion in the height direction H at a substantially central position of the rear portion of the seat portion 1, and the folded seat can be easily transported or folded or unfolded by the grip portion 13.

In the present embodiment, when the folding seat is in the unfolded state and the folded state, the support leg assembly 2 integrally forms a stable support structure and the upper portion of the support leg assembly 2 supports the seat part 1 from below the seat part 1 and the lower portion of the support leg assembly 2 is pressed against a support surface such as the ground.

Moreover, regardless of whether the folding seat of the present invention is in the unfolded state or the folded state, when the following plural support legs of the support leg assembly 2 are supported by the support surface, the drooping foot of the perpendicular line perpendicular to the support surface drawn from the gravity center of the folding seat on the support surface is always located in the support area surrounded by the line between the support portions of the plural support legs abutting against the support surface on the support surface. The support area described in the utility model is an orthographic projection area of an area surrounded by line segments which are sequentially connected with the support parts of the support legs abutted against the support surface on the support surface; the location of the drop leg within the support region does not include the location of the drop leg at the boundary of the support region. The term "support surface" as used herein refers to a substantially horizontal surface such as a floor surface. By satisfying the above conditions, the folding seat can be ensured to stably stand on the supporting surface by depending on the structure of the folding seat when the folding seat is in the unfolding state and the folding state.

In the present embodiment, as shown mainly in fig. 2 to 4, the support leg assembly 2 includes two front support legs 21, two rear support legs 22, and a first support beam 23, a second support beam 24, a third support beam 25, and a fourth support beam 26 provided between the support legs.

The two front support legs 21 are each located on the outer side in the width direction W of the two rear support legs 22. One front support leg 21 and one rear support leg 22 form a pair, and each pair of the front support leg 21 and the rear support leg 22 is connected by a rotating shaft so that each pair of the front support leg 21 and the rear support leg 22 can rotate relative to each other. As shown in fig. 2, when viewed in the width direction W when the folding seat is in the unfolded state, the rear support leg 22 and the front support leg 21 are arranged in an intersecting manner in each pair of the rear support leg 22 and the front support leg 21, that is, the rear support leg 22 and the front support leg 21 form a substantially X-shaped structure.

In the present embodiment, the two front support legs 21 have the identical shape and are arranged in parallel side by side in the width direction W. As shown mainly in fig. 2, each front support leg 21 is composed of a front support leg main body 211 and a front support foot 212. The front leg main body 211 has a hollow rod shape having a curved shape as a whole, and the front leg main body 211 is located below the front leg main body 211 and is mounted to the front leg main body 211 by being partially inserted into the front leg main body 211.

Specifically, when the folding seat is in the unfolded state, as mainly shown in fig. 2, the front leg main body 211 extends from the seat portion 1 toward the lower side in the height direction H while extending toward the front in the front-rear direction F. The front support leg main body 211 of the front support leg 21 includes, in order from top to bottom in the height direction H, a front support leg upper portion 2111, a front support leg connecting portion 2112, and a front support leg lower portion 2113, and both ends of the front support leg connecting portion 2112 are connected to the front support leg upper portion 2111 and the front support leg lower portion 2113, respectively. The front support leg upper portion 2111 and the front support leg lower portion 2113 are both straight rod-shaped, and the front support leg connecting portion 2112 is curved rod-shaped. By the connection of the front support leg connection portion 2112, the acute angle formed by the front support leg upper portion 2111 with the height direction H is made larger than the acute angle formed by the front support leg lower portion 2113 with the height direction H.

In the present embodiment, the two rear support legs 22 have the identical shape and are arranged in parallel side by side in the width direction W. As shown mainly in fig. 2, each rear support leg 22 is composed of a rear support leg main body 221 and a rear support foot 222. The rear support leg main body 221 has a hollow rod shape having a curved shape as a whole, and the rear support leg 222 is located below the rear support leg main body 221 and is attached to the rear support leg main body 221 by being partially inserted into the rear support leg main body 221.

Specifically, when the folding seat is in the unfolded state, the rear support leg main body 221 extends from the seat section 1 toward the lower side in the height direction H and also extends toward the rear in the front-rear direction F, as shown mainly in fig. 2. The rear support leg main body 221 of the rear support leg 22 includes a rear support leg upper portion 2211, a rear support leg connecting portion 2212, and a rear support leg lower portion 2213 in order from top to bottom in the height direction H, and both ends of the rear support leg connecting portion 2212 are connected to the rear support leg upper portion 2211 and the rear support leg lower portion 2213, respectively. The rear support leg upper portion 2211 and the rear support leg lower portion 2213 are both straight rod-shaped, and the rear support leg connecting portion 2212 is curved rod-shaped. By the connection of the rear support leg connection portion 2212, the acute angle formed by the rear support leg upper portion 2211 and the height direction H is larger than the acute angle formed by the rear support leg lower portion 2213 and the height direction H.

As shown in fig. 2, in the unfolded state of the folding seat, the acute angle formed by the rear support leg upper portion 2211 and the height direction H is larger than the acute angle formed by the front support leg upper portion 2111 and the height direction H, and the acute angle formed by the rear support leg lower portion 2213 and the height direction H is equal to the acute angle formed by the front support leg lower portion 2113 and the height direction H. The position of the front support leg connection portion 2112 in the height direction H is lower than the position of the rear support leg connection portion 2212 in the height direction H. The front support leg upper portion 2111 has a length that is longer than the length of the rear support leg upper portion 2211, and the front support leg lower portion 2113 has a length that is shorter than the length of the rear support leg lower portion 2213.

In the present embodiment, as shown in fig. 2 and 4, the portion where the front support leg 21 and the rear support leg 22 are pivotally connected is located on the rear support leg connecting portion 2212 side of the front support leg upper portion 2111 and the rear support leg upper portion 2211. In the front-rear direction F, a portion where the front support leg 21 and the rear support leg 22 are pivotally connected is located on the rear side with respect to the center portion of the seat section 1. The rotation connection between the front support leg 21 and the rear support leg 22 can be realized by any suitable means such as bolts, nuts, etc., and the utility model discloses do not do any restriction to this.

When the folding seat is in the folded state, the front support leg upper portion 2111 and the rear support leg upper portion 2211 cross each other in an X-shape, and the front support leg lower portion 2113 and the rear support leg lower portion 2213 are substantially parallel to each other, so that the below-described planar second abutment surfaces of the front support leg portion 212 and the rear support leg portion 222 can both be parallel to a support surface such as a ground surface.

In addition, as shown in fig. 8, the bottom surface of the front supporting leg portion 212 for contact with the supporting surface includes a first abutment surface 2121 that abuts against the supporting surface when the folding seat is in the unfolded state and a second abutment surface 2122 that abuts against the supporting surface when the folding seat is in the folded state, that is, the bottom portion of the supporting leg portion includes two abutment surfaces that are angled to each other. The front leg lower portion 2113 extends in a direction perpendicular to the second abutment surface 2122. The bottom surface of the rear support foot 222 has a similar configuration to the bottom surface of the front support foot 212.

When the folding seat is in the folded state, the second abutment surface of the front support leg 212 and the second abutment surface of the rear support leg 222 are in substantially the same plane, and the extending direction of both the front support leg lower portion 2113 and the rear support leg lower portion 2213 at this time is perpendicular to this plane. When the folding seat is in the unfolded state, the first contact surface of the front supporting leg portion 212 and the first contact surface of the rear supporting leg portion 222 are in substantially the same plane, which is substantially parallel to the seat portion 1.

In the present embodiment, the area of the first abutment surface is larger than the area of the second abutment surface in order to ensure that the folding seat can be stably supported when the folding seat is in the unfolded state; and the first abutting surface and the second abutting surface are both planes. Alternatively, a through hole may be provided at the first abutment surface so that water entering the support leg can smoothly flow out.

In the present embodiment, specific configurations of the first support beam 23, the second support beam 24, the third support beam 25, and the fourth support beam 26 will be described mainly with reference to fig. 4, 8, and 9.

The first support beam 23 is provided between the two front support leg connecting portions 2112 and extends in the width direction W, and the bottom surface 12 of the seat portion 1 is connected to the first support beam 23 by two connecting members 4. The two connecting members 4 are located at a distance from each other at positions near both ends of the first support beam 23. Both the links 4 have a bar shape, one end of each link 4 is rotatably attached to the seat portion 1, and the other end of each link 4 is rotatably attached to the first support beam 23.

The second support beam 24 is provided between the two rear support leg upper portions 2211 and extends in the width direction W, and is attached to the seat section 1 so that the seat section 1 can rotate around the second support beam 24. In the present embodiment, the second support beam 24 is buried in the seat 1.

The third support beam 25 is disposed between the two front support leg upper portions 2111 and extends in the width direction W. When the folding seat is in the unfolded state, the storage part 31 provided in the seat part 1 is used for storing the third support beam 25 and the hook 32 is clamped with the third support beam 25; when the folding seat is in the folded state, the third support beam 25 is disengaged from the housing portion 31 and the hook 32 is disengaged from the third support beam 25. Further, each rear support leg 22 is provided with an abutting portion 223 for abutting the third support beam 25 from below. When the folding seat is in the unfolded state, the abutting portion 223 abuts against the positions of the third support beam 25 near both end portions of the third support beam 25; when the folding seat is in the folded state, the abutment portion 223 is out of contact with the third support beam 25.

The fourth support beam 26 is provided between the rear support leg connecting portions 2212 on the rear support leg lower portion 2213 side and extends in the width direction W, and this fourth support beam 26 serves to stabilize the frame structure of the entire support leg assembly 2.

In the present embodiment, the first support beam 23, the second support beam 24, the third support beam 25, and the fourth support beam 26 are each fixedly connected to the front support leg main body 21 and the rear support leg main body 22.

The following will explain the specific structure of the latch mechanism 3 and the connecting member 4 of the folding seat of the present invention with reference to the drawings.

In the present embodiment, as shown in fig. 9, the latch mechanism 3 includes a housing portion 31 extending in the width direction W, four hooks 32 arranged in the width direction W provided on the rear side in the front-rear direction F of the housing portion 31, and an operating portion 33 connected to the hooks 32.

The receiving portion 31 is a recess formed in the bottom surface 12 of the seat 1, and the shape of the recess corresponds to the shape of the third support beam 25. The four hooks 32 are grouped in pairs, and the two groups of hooks 32 are arranged at intervals in the width direction W. The operation portion 33 is located below the grip portion 13, and the hook 32 can be disengaged from the third support beam 25 by pulling up the operation portion 33.

Alternatively, the operating portion 33 may be eliminated, and instead, the hook 22 may be shaped to automatically release the engagement with the third support beam 25 with the relative movement between the seat portion 1 and the support leg portion 2 when the user switches the folding seat from the unfolded state to the folded state.

In the present embodiment, when the folding seat is in the unfolded state, the third support beam 25 is received in the recess as the receiving portion 31 and the third support beam 25 is snapped together with the hook 32. The hook 32 holds the third support beam 25 between the receiving portion 31 and the hook 32. Thus, the folded seat can be maintained in the unfolded state by the engagement of the latch mechanism 3 with the third support beam 25.

In the present embodiment, as shown in fig. 8, the two links 4 have a link main body 41 having a strip shape and positioning projections 42 provided on the link main body 41 and extending toward each other in the width direction W, and the seat portion 1 has recesses 15 corresponding to the positioning projections 42. When the folding seat is in the folded state, the positioning projection 42 is snapped together with the recess 15 to maintain the folded state; when the folding seat is in the unfolded state, the positioning projection 42 is disengaged from the recess 15.

Through adopting the technical scheme, the utility model provides a can still rely on the stable in structure of self folding seat who stands when being in fold condition.

(second embodiment)

As shown in fig. 10 to 15, the basic structure of the folding seat according to the second embodiment of the present invention is substantially the same as that of the folding seat according to the first embodiment of the present invention, and the difference therebetween is that: in this embodiment, the folding seat further comprises a back portion 5; the support leg assemblies 2 are different in shape; the operation part 33 of the clamping mechanism 3 is arranged on the handle 52 of the back part 5, and the operation part 33 controls the action of the hook 32 through the transmission cable 34; the abutting portion 223 is provided to the front support leg upper portion 2111 for abutting against the fourth support beam 26.

The back 5 is intended for the back of the user to lean against when the folding seat is in the unfolded state. In the present embodiment, the back portion 5 and the seat portion 1 are formed integrally by molding or the like, for example, the back portion 5 is formed in a plate shape recessed at a substantially center, and the edge of the back portion 5 is also formed in a rounded shape.

In the present embodiment, the back portion 5 includes a back main body 51 mainly for the back of the user to lean against, a handle 52 provided on the back main body 51, and a through hole 53.

Specifically, a through hole 53 that penetrates the back main body 51 in the front-rear direction F is provided in a substantially central portion of the back main body 51 in the width direction W and in a portion near the tip of the back main body 51 in the height direction H, the through hole 53 having an elliptical shape with the major axis of the elliptical shape extending along the width direction W. The user can easily operate the back portion 5 by holding his hand in the structure formed by the through hole 53 and the tip end of the back main body 51 to complete transportation of the folding seat and the like.

A handle 52 that can be rotated out of the back main body 51 or stored in the back main body 51 is provided at a position behind the back main body 51 where the through hole 53 is provided. When the handle 52 is accommodated in the back main body 51, the handle 52 does not affect the above-described function of the through hole 53. In addition, the handle 52 can be easily rotated out by the user through the through hole 53.

In the present embodiment, the operation portion 33 of the latch mechanism 3 is provided on the handle 52 of the back portion 5, and the operation portion 33 controls the operation of the hook 32 through the transmission cable 34. One end of the transmission cable 34 is embedded in the back portion 5 and connected to the operation portion 33, the transmission cable 34 extends along the shape of the back portion 5 toward the hook 32 provided on the bottom surface 12 of the seat portion 1, and the other end of the transmission cable 34 is connected to the hook 32. The transmission cable 34 is stretched between the operation portion 33 and the hook 32, and when a force is applied to the operation portion 33 by gripping the handle 52, the operation portion 33 rotates the transmission cable 34 and thus the hook 32. In this way, the engagement state between the engagement mechanism 3 and the third support beam 25 can be controlled while the operation portion 33 is easily operated.

In the present embodiment, the abutting portion 223 is provided to each front support leg 31 and is used to abut against the fourth support beam 26. When the folding seat is in the unfolded state, the abutting portion 223 abuts against the fourth support beam 26; when the folding seat is in the folded state, the abutment portion 223 is out of contact with the fourth support beam 26.

As shown in fig. 11, in order to accommodate the shift in the center of gravity due to the increase in the back 5, the positions in the height direction H of the front support-leg upper portion 2111, the front support-leg connecting portion 2112, and the front support-leg lower portion 2113 substantially correspond to the positions in the height direction H of the rear support-leg upper portion 2211, the rear support-leg connecting portion 2212, and the rear support-leg lower portion 2213, respectively. The portions where the front support leg 21 and the rear support leg 22 are rotatably connected are located at the front support leg upper portion 211 and the rear support leg upper portion 222.

The technical solution of the present invention is explained in detail above, but it should be also explained that:

1. referring to fig. 14 to 15, the following structure is preferably implemented when the folding seat is in the folded state as explained in the above embodiment: the front support leg lower portion 2113 and the rear support leg lower portion 2213 are made parallel to each other (including an angle of 5 degrees or less formed between the front support leg lower portion 2113 and the rear support leg lower portion 2213. in this way, the dimension in the front-rear direction F of the support leg assembly 2 can be sufficiently reduced while the folding seat can stand by its own structural stability in the folded state. however, the present invention is not limited to this, and it may be set so that the front support leg lower portion 2113 and the rear support leg lower portion 2213 are not parallel to each other as long as the vertical line perpendicular to the support plane, which is drawn from the center of gravity of the folding seat, is always located in the support area surrounded by the connecting line between the support portions of the plurality of support legs abutting against the support plane on the support plane, and the folding seat can stand by itself in the folded state.

2. Although not illustrated in the above embodiment, the support leg may be provided with holes penetrating therethrough and communicating with the cavities of the front and rear

support leg bodies

211 and 221, respectively, and the bottom surface of the support leg may be provided with anti-slip threads to further stabilize the folding seat.

3. Although the operation portion 33 is described as being provided below the grip portion 13 in the first embodiment, the grip portion 13 itself may function as the operation portion 33.

4. Although not illustrated in the above embodiment, two side portions of the seat 1 in the width direction W may form one side grip portion, respectively, the two side grip portions being line-symmetric with respect to a center line of the seat 1 in the width direction W, and the support leg assembly 2 being located inside the side grip portions on both sides in the width direction W.

5. Although not illustrated in the above embodiment, the front support leg 21 and/or the rear support leg 22 may extend toward the outside in the width direction W while extending downward from above in the height direction H in the above embodiment.

6. Although it has been described in the above embodiment that the first abutment surface and the second abutment surface are flat surfaces, the present invention is not limited thereto. The first abutment surface and the second abutment surface may be formed as curved surfaces having a small curvature.

The scope of protection of the present invention is not limited to the specific embodiments of the above-described embodiments, but falls within the scope of protection of the present invention as long as the combinations of the features of the claims of the present invention are satisfied.

Claims

1. A folding seat comprising a seat portion and a support leg assembly for supporting the seat portion from below the seat portion, the support leg assembly being deployable and collapsible to enable the folding seat to be converted between a deployed state and a folded state,

the support leg assembly includes a plurality of support legs including:

a plurality of front support legs arranged side by side in a width direction of the folding seat; and

a plurality of rear support legs arranged side by side in the width direction, each of the rear support legs being rotatably connected to each of the front support legs,

each of the rear support legs and each of the front support legs are in a cross-like configuration as viewed in a width direction of the folding seat when the folding seat is in the folded state, so that the folding seat can stand by itself when in the folded state.

2. The folding seat of claim 1,

each of the front support legs includes a front support leg main body in a bent rod shape and a support foot portion attached to the front support leg main body from below the front support leg main body, and

each of the rear support legs includes a rear support leg main body in a bent rod shape and the support foot portion attached to the rear support leg main body from below the rear support leg main body.

3. The folding seat of claim 2,

the front support leg main body sequentially comprises a front support leg upper part, a front support leg connecting part and a front support leg lower part from top to bottom in the height direction of the folding seat, the front support leg upper part and the front support leg lower part are both straight rod-shaped, and the front support leg connecting part is a bent rod-shaped; and is

The rear supporting leg main body comprises a rear supporting leg upper part, a rear supporting leg connecting part and a rear supporting leg lower part in sequence from top to bottom in the height direction of the folding seat, the rear supporting leg upper part and the rear supporting leg lower part are both straight rod-shaped, the rear supporting leg connecting part is bent rod-shaped,

in the pair of the front support leg and the rear support leg connected to each other, the front support leg upper portion and the rear support leg upper portion are rotatably connected to each other.

4. The folding seat according to claim 3, characterized in that, in a pair of the front support leg and the rear support leg connected to each other, the front support leg upper portion and the rear support leg upper portion form an X-shaped structure, and the front support leg lower portion and the rear support leg lower portion are arranged in conformity with a height direction of the folding seat, as viewed in a width direction of the folding seat when the folding seat is in the folded state.

5. The folding seat according to claim 3, wherein the front support leg main body and the rear support leg main body form an X-shaped configuration when viewed in a width direction of the folding seat in the unfolded state, an acute angle formed by the front support leg upper portion with a height direction is larger than an acute angle formed by the front support leg lower portion with the height direction, and an acute angle formed by the rear support leg upper portion with the height direction is larger than an acute angle formed by the rear support leg lower portion with the height direction.

6. A folding seat according to any one of claims 1 to 5, wherein a perpendicular line drawn from the center of gravity of the folding seat and perpendicular to a support surface supporting the plurality of support legs when the folding seat is in the folded state and the unfolded state is a point P on the support surface, the point P being located on the support surface within a support area surrounded by a line connecting support portions of the plurality of support legs abutting the support surface.

7. The folding seat according to any one of claims 2 to 5, characterized in that the front support leg body and the rear support leg body each have a hollow structure, and the support foot is mounted to the front support leg body and the rear support leg body, respectively, by being partially inserted into the front support leg body and the rear support leg body, respectively.

8. The folding seat of claim 7, wherein each of the plurality of support legs includes a support foot for abutting a support surface supporting the plurality of support legs, the support foot including a first abutment surface and a second abutment surface,

the first abutting surface and the second abutting surface are both flat surfaces and form a predetermined angle with the second abutting surface,

the first abutment surface of each of the support leg portions is adapted to abut against the support surface when the folding seat is in the unfolded state, and each of the first abutment surfaces is located in the same plane when the folding seat is in the unfolded state,

the second abutment surface of each of the support leg portions is adapted to abut against the support surface when the folding seat is in the folded state, and the second abutment surfaces are located in the same plane when the folding seat is in the folded state.

9. The folding seat of claim 3,

the support leg assembly further comprises a first support beam, a second support beam, a third support beam and a fourth support beam,

the first support beam is disposed between the front support leg connection parts,

the second support beam is provided between upper portions of the rear support legs and is mounted to the seat portion so that the seat portion can rotate around the second support beam,

the third support beam is disposed between upper portions of the front support legs,

the fourth support beam is arranged between the rear support leg connecting parts.

10. The folding seat according to claim 9, wherein the third support beam is received in a receiving portion provided in the seat portion and is engaged with a hook provided in the seat portion when the folding seat is in the unfolded state,

when the folding seat is in the folding state, the third supporting beam is separated from the accommodating part and is released from being clamped with the clamping hook.