JPS595407Y2 - Chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chair that can be used as a regular chair and also as an easy chair.

In recent years, chairs with various types of reclining mechanisms have been commercially available.

However, conventional chairs have generally not been satisfactory in terms of transportability, operability, strength, etc.

This invention was devised in consideration of the current situation, and its purpose is to create a chair that can function satisfactorily as both a regular chair and an easy chair, and has good operability and transportability. We aim to provide the following.

The present invention provides a horizontal chair support member 3 placed on the floor, a horizontal seat member 1 disposed on the horizontal chair support member 3 at a required parallel interval, and a horizontal seat member 3 that connects the middle and rear portions of the horizontal chair support member 3 to the horizontal chair support member 3. A front connecting link 4 and a rear connecting link 5 which are pivotally connected to the front and rear parts of the chair 1 and whose upper part is tilted forward form a chair body in the shape of a four-part parallel link mechanism whose shape is variable, and A backrest member 2 having a lower end pivotally supported midway through a horizontal chair support member 3 and an upper end always protruding above the horizontal seat member 1 is attached to the chair body with the upper end tilting backward, and the backrest member 2 A recess 8 provided in the rear end extension of the horizontal seat member 1 or a recess provided midway in the rear connecting link 5, depending on the change in the inclination angle of the connecting link 4 and the rear connecting link 5, near the middle and lower end. This chair is characterized by being provided with a protrusion 9 and a protrusion 11 that engage with a seat 10, respectively.

Note that 6 and 7 in the figure indicate the first and second engagement positions of the backrest seat 2.

Furthermore, in the above structure, the engagement between the backrest member 2, the horizontal seat member 1, and the rear connecting link 5 is not limited to the above structure; for example, the protrusions 9 and 11 may be removable hammer pins. It can also be used as a reinforcing horizontal member, and as shown in Fig. 2, the recesses 9 and 1
Instead of providing 0, the U-shaped protruding piece 12 may be fixed, and furthermore, a recess or the like may be provided on the backrest member 2 and the rear connecting link 5, respectively.

Regarding other components of the chair according to the present invention, reference numeral 13 denotes a mounting rod 1 to form a seat and a backrest.
Campus sea attached to the chair at 4) 15,1
6, 17 and 18 are the seat member 1 and the front link 4, respectively.
The front link 4 and the horizontal chair support member 3, the horizontal chair support member 3 and the rear link 5, the rear link 5 and the seat member 1, and pivot pins 19, 20, 21, and 22 are reinforcing horizontal members. be.

The pivot pin 16 also connects the backrest member 2 and the horizontal chair support member 3.
It is also used to support the.

Next, a method of using the chair according to the present invention will be described.

First, when using the chair as a normal chair, the protrusion 9 is fitted into the recess 8 and held in the position shown by the solid line.

When using it as an easy chair, lift the seat member 1 with a slight force to disengage the protrusion 9 and the recess 8, bring the four-part parallel link mechanism and the backrest member to the positions indicated by the dotted lines, and recess the protrusion 11. 10, each is held in the same position to form an easy chair.

As described above, the chair according to the present invention has the following effects.

(1) It has a simple structure and can be manufactured at low cost.

(2) Due to its simple structure, it can be quickly and reliably changed from a regular chair to an easy chair or vice versa.

(3) When used as an easy chair, the backrest is sufficiently long and the sitting height is low, so the user can rest comfortably on the easy chair.

(4) Since it can be easily folded, it is convenient for transportation and storage.

(5) Since the substantially horizontal chair support member has a sufficient contact area with the floor surface, the floor surface will not be damaged.

[Brief explanation of drawings]

FIG. 1 is a side view of the chair according to the present invention (in the figure, the solid line indicates the normal posture position, and the dotted line indicates the comfortable posture position);
Fig. 2 is an explanatory diagram showing an example of modification of the inter-member retaining part, Fig. 3 is an overall perspective view, and Fig. 4 is a campus seam attached to a chair.
・Is an overall perspective view.

Claims (1)

[Scope of utility model registration request] The horizontal seat support member 3 placed on the floor and the horizontal seat member 1 and the horizontal chair support member 3 disposed at a required parallel interval on the horizontal chair support member 3 are placed in front of the horizontal seat member 1. The front connecting link 4 and the rear connecting ring 5, which are pivotally connected to the upper part and the rear part and whose upper part is tilted forward, form a chair body in the shape of a four-part parallel link mechanism whose shape can be changed, and A backrest member 2 whose lower end is pivotally supported midway through the horizontal chair support member 3 and whose upper end always projects upwardly from the horizontal seat member 1 is mounted with the upper end tilting backward, and furthermore, the backrest member 2 is mounted midway. and a recess 8 provided in the rear end extension of the horizontal seat member 1 or a recess 10 provided midway through the rear connection link 5 near the lower end according to changes in the inclination angle of the connection link 4 and rear connection link 5. A chair characterized by being provided with a protrusion 9 and a protrusion 11, which respectively engage with the protrusion 9 and the protrusion 11.