JPS624203Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a deformable chair structure.

In this design, the functional characteristics of an easy chair are determined by the length of the backrest, the backward inclination of the seat, and the forward rotation of the seat to create a footrest, and these deformable functional characteristics are realized by a simple structure. It is an object of the present invention to provide a deformable chair structure that can be converted from an ordinary chair into an easy chair equipped with a footrest.

To explain the embodiment of this invention in detail based on the drawings, A is a normal chair body showing the shape when used as a normal chair, a is a backrest member, and the backrest member a is It is configured in a folded state, with the upper part being the backrest part 1 and the lower part being the leg parts 2.
, b is a seat support member, the backrest member a and the seat support member b intersect in an , the lower end is placed on the floor and has the function of supporting the entire chair.

C is a seat member, and the front end of the seat member c is pivoted to the front end of the seat support member b, and the rear end of the seat member c is connected to the backrest portion 1 of the backrest member a.
It is removably locked at the bottom.

3 and 3' are locking hooks provided at the lower part of the backrest part 1 of the backrest member a at required intervals in two places, upper and lower;
is a locking projection provided at the rear end of the seat member c, and the locking projection 4 is configured to be able to lock and detach from the locking hooks 3 and 3', allowing the seat member c to be attached to and removed from the lower part of the backrest portion 1. It is said that

Note that the backrest member a, the seat support member b, and the seat member c are all formed on both the left and right sides of the chair body A, and the leg portions 2 of the backrest member a on both the left and right sides are
The lower end, the lower end of the seat support member b, and the rear end of the seat member c constitute a chair body A by horizontally connecting horizontal rods 5, 6, and 7.

A backrest cloth 8 and a seat cloth 9 are stretched over the backrest part 1 of the backrest member a and the seat member c, respectively, and the lower end of the backrest cloth 8 is extended and stretched over the front half of the seat support member b. The auxiliary seat cloth 1 of the front half of the seat support member b is connected to the auxiliary seat cloth 10 provided.
0 is not used at all when the chair is in normal use, and serves as a seat when the chair is used after being transformed into a foot resting state, which will be described later.

The seat member c is configured to be rotatable around the front end pivot portion m of the seat support member b, and when the seat member c is rotated forward and held in a substantially horizontal state,
The back side of the seat cloth 9 of the seat member c becomes a foot rest d, and at this time, the auxiliary seat cloth 10 becomes the seat and the chair is used as an easy chair B equipped with a foot rest.

Reference numeral 11 denotes a locking piece for rotating the seat member c forward and holding it in a horizontal state, and is provided protruding from the front end of the seat member c, and is configured to be locked to the front end of the seat support member b when the seat member c is turned. has been done.

12 is a seat support member b in front of the pivot portion n.
This is a support protrusion for supporting and fixing the seat on the legs 2 of the backrest member a, and supports and fixing the seat support member b when converting it into an easy chair B equipped with a footrest.

In the figure, 10-a is the backrest cloth 8 and the auxiliary seat cloth 10.
It is a continuous fabric with the chair, and becomes the seat when converted into an easy chair B equipped with a footrest.

This invention is constructed as described above, and when used as a chair for continuous use, the seat member c is placed in a horizontal position, and the locking protrusion 4 at the rear end of the seat member c is placed on the backrest. When used as a regular chair body A by being locked to the upper locking hook 3 of the seat member C, when used as an easy chair B, the locking protrusion 4 at the rear end of the seat member C is connected to the lower locking hook. The seat support member b is locked to the tool 3' or placed on the pivot portion n, and at the same time the backrest member a and the seat support member b are tilted slightly backward and forward, respectively. When the easy chair B is turned into such an easy chair B, the backrest part 1 has a larger inclination angle rearward than the normal chair body A, and the upper and lower sides of the backrest part 1 are lowered only in the lowered part of the rear end of the seat member c. The length becomes longer and the shape is transformed into a shape that satisfies the requirements for an easy chair.If the easy chair is to be further equipped with a footrest, the seat member c should be moved around the pivot point m. The seat support member b is rotated forward and extended to the front end, and the seat member is turned into a footrest d, and the auxiliary seat cloth 10 of the seat support member b is used as a seat portion, and the backrest cloth 8 is The continuous fabric 10-a and the auxiliary seat cloth 10 are used as a backrest and a seat to form an easy chair B equipped with a footrest.

When folded for storage, the backrest member a is tilted forward about the pivot point n, with the lower ends of the legs 2 positioned at the rear and the upper ends of the backrest 1 at the front. In the state, seat member c
Both the seat support member b and the seat support member b are folded close to the backrest member a.

According to this idea, in order to convert it into an easy chair, all that is required is to lower the rear end of the seat member downward and fix it.The backrest will be long and the seat member will be tilted backwards. Furthermore, when equipped with a footrest, it can be turned into an easy chair equipped with a footrest by simply rotating the seat member forward. There are effects that can be made with the transformation of the chair.

[Brief explanation of the drawing]

FIG. 1 is a side view of the proposed chair structure in a normal usage state. FIG. 2 is a perspective view of the same. FIG. 3 is a side view of the easy chair state. FIG. 4 is a side view of the footrest equipped. FIG. 5 is a side view of the stored state. A: Normal chair body, B: Easy chair, a: Backrest member, b: Seat support member, c: Seat member, d: Footrest, n: Pivot part, m: Pivot part, 1: Backrest part,
2: Leg, 3: Locking hook, 4: Locking protrusion, 5: Horizontal rod, 6: Horizontal rod, 7: Horizontal rod.

Claims (1)

[Scope of utility model registration request] A substantially U-shaped backrest member a whose upper part is a backrest part 1 and whose lower part is a leg part 2 for supporting on the floor.
and approximately U with legs for supporting the lower part on the floor.
The letter-shaped seat support members b are crossed in an X-shape and are pivotally connected in the middle part, and each member a and b is pivotally connected to the backrest member a in the front part of the pivot joint part n. A support protrusion 12 for supporting and fixing the seat support member b when expanded around the seat part n is provided in a protruding manner, and a substantially U-shaped front end of the seat member c is formed toward the front at the upper end of the seat support member b. The rear part of the seat member c is positioned in an enclosure behind the backrest part 1 of the backrest member a, and the backrest part 1 of the backrest member a and the seat member c are rotatably supported.
The seat member c is removably engaged with the rear part of the seat member c so as to be freely adjustable in vertical position, and the seat member c can be rotated downward to a pivot point m position which is the intersection of the backrest member a and the seat support member b. Furthermore, the seat member c is configured to be able to freely turn around the front end pivot point m, over the upper end of the backrest member a, and in front of the seat support member b, so that the front half of the seat support member b is in an extended state when turned. and the rotated seat member c constitute the seat of the footrest, and the backrest cloth 8 stretched over the backrest portion 1 and the seat cloth 9 stretched over the front half of the seat support member b. An auxiliary seat cloth 10 is interposed between them, and is configured to serve as a seat when the seat member c rotates forward.
Due to the downward rotation of the backrest member a and the forward rotation of the backrest member a, the downward rotation of the backrest members a and c and the forward rotation of the backrest member a, the backrest member a, the seat support member b, and the seat member A deformable chair configured to be able to be folded into a substantially planar shape as shown in c.