JPH0436682Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an armrest structure for a chair on which a person sitting on the seat leans his or her elbows.

[Conventional technology]

Conventionally, in a chair configured by attaching armrests to both elbow pipes in the front and back directions installed above both sides of the seat, the armrests are made of flat armrests with a width larger than the diameter of the elbow pipes. The structure was such that it was placed above the pipe and screwed down from below the elbow pipe, or the skin was wrapped around the elbow pipe.

[Problem that the invention attempts to solve]

Therefore, in a flat armrest, the side part protrudes above the seat part from the elbow pipe, which hits and gets in the way of the person sitting, and if you grasp it with your hand all the way to the lower part, it becomes uneven. In addition, armrests wrapped in leather are difficult to install, and the armrests are rounded, making it difficult to rest the elbows comfortably.

[Means for solving problems]

The present invention solves this problem and makes it possible to rest the elbow comfortably without interfering with the human body and with a good grip feeling in the hand.For this purpose, a synthetic resin armrest is placed in the center of the width direction. Forms a thin wall portion having a width that can be joined to at least the outer circumference of the inner half of the elbow pipe, and thick wall portions whose upper outer surface is a wide flat surface are formed at both ends of the armrest. The thick-walled parts are attached to the top and bottom of a mounting bracket fixed to the outside, and screws are tightened from below.

[Effect]

Therefore, it can be easily installed by joining the thin wall part to the inside half circumference of the elbow pipe and screwing the thick wall parts at both ends to the mounting bracket. The entire body can be comfortably held in the hand without disturbing the person sitting, and since it is flat from the inwardly curved thin section upwards, the elbow can be rested comfortably on it. become.

〔Example〕

Next, the embodiment shown in the drawings will be described. Fig. 2 shows a perspective view of the chair. Above both sides of the seat part 1 connected to the back part 1a, both elbow pipes 2, 2 in the front and back direction connected to the upper end of each erected support leg 2a are installed, similar to the conventional structure. It is configured as follows, but both elbow pipes 2, 2
A flat plate-shaped mounting bracket 4 having vertical holes is fixed horizontally to the front and rear of the outside of the housing.

A indicates the entire armrest made of vinyl chloride or polyethylene material having moderate softness, and the armrest A has a length slightly shorter than the length of the elbow pipe 2. At the center in the width direction, there is a half circumference on the inner side of the elbow pipe 2. Thin wall part a1 having a width that can be joined to the outer periphery of
are formed to have the same thin thickness, and at both ends of the armrest A connected to the thin part a1, there are thick parts a2, in which the upper outer surface 3 is a wide flat surface and the tip side is curved.
a3 respectively, while the lower surface 6 of the thick part a2
A round recess 8 having a hole into which the screw 5 is inserted is formed at both ends of the protrusion 7 formed along the inner side of the ridge, and a low groove extending over the entire length in the width direction is formed at both ends of the thin wall portion a1. Step surfaces 9, 9 are formed, respectively.

In addition, cylindrical parts 11, 11 are provided protrudingly near both ends of the lower surface 10 of the other thick part a3, and the tip end thereof can be fitted into the circular recess 8, and a screw hole 12 into which the screw 5 is inserted is formed in a cylindrical shape. An enlarged hole 12a is formed on the outer surface 3 of the screw hole 12 so as to extend from inside the portion 11, and an enlarged hole 12a into which the head 5a of the screw 5 can fit is formed on the outer end side of the screw hole 12.
It is formed so as to be open to the inner side of the lower surface 10, and recessed step portions 14, 14 are respectively formed on both end sides of the inner side of the lower surface 10, into which both bent end portions 13, 13 formed by bending at both ends of the joint B can fit, A wedge-shaped recessed step 15 is formed from both ends of the lower surface 10 to the outer side, into which the joint B can fit. show.

Therefore, as shown in FIG.
The armrest A is rounded in such a way that it lies on the inner outer circumferential surface of the elbow pipe 2, and both cylindrical parts 11 fit into the holes of both mounting brackets 4, so that the lower surface 10 of the thick part a3 is attached to both mounting brackets 4.
Then, both round recesses 8 are fitted to the tips of both cylindrical parts 11, and the protrusions 7 of the thick part a2 are joined to the upper surfaces of both mounting brackets 4. At the same time, as shown in FIG. 8, the joint B is fitted from the concave stepped portions 14, 14 to the concave stepped portion 15, and both screws 5 are inserted from the screw hole 12 into the round concave portion 8.
By inserting the screw inward and tightening the screw, the armrest A can be attached to the elbow pipe 2 as shown in FIGS. 1 to 5.

In addition, as shown in FIGS. 9 to 14, the upholstery D is stretched on the outer circumferential surface of the armrest A, and a portion of both ends of the upholstery D are fitted into the low step surfaces 9, 9, and the upholstery D
The other outer circumferential side of is fixed to the lower surfaces 6 and 10 side with the stapler needles 16, and the state shown in FIG. 9 is attached to the elbow pipe 2 as described above. 5 is tightened and the embedded piece 17 is inserted into the enlarged hole 12, as shown in FIG.
This means that the armrest A covered with the upholstered fabric D can be worn.

[Effect of idea]

In this way, the present invention connects the thin wall portion a1 to the elbow pipe 2.
The armrest A can be assembled very easily by engaging the screws 5 into both the thick parts a2 and a3 and the mounting bracket 4, and the thin part a1 is wrapped around the inner half of the elbow pipe 2. The mounting structure is good without protruding to the seat 1 side and does not disturb or cause discomfort to the seated person.Also, the entire body can be held comfortably in the hand, and the inner curvature Since the upper surface on the outer side from the thin part a1 becomes a flat surface, the elbow can be placed comfortably and comfortably, and the armrest can be made compact and soft without any discomfort, and has the feature that it can be carried out suitably.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a part of the armrest with the armrest attached, Fig. 2 is a perspective view of the chair, Fig. 3 is a sectional view of another part, and Fig. 4 is a sectional view along the longitudinal direction of the armrest. Figure 5 is a sectional view of the end of the armrest, Figure 6 is a bottom perspective view of the unfolded armrest, Figures 7 and 8.
The figure is a perspective view showing the installed state, Figure 9 is a perspective view with the upholstery attached, Figure 10 is a perspective view of the state installed on the elbow pipe, Figure 11 is a partial cross-sectional view, FIG. 12 is a sectional view of other parts, FIG. 13 is a sectional view along the longitudinal direction, and FIG. 14 is a sectional view of the end. 1... Seat, 2... Elbow pipe, A... Armrest,
a1... Thin wall part, 3... Outer surface, a2, a3... Thick wall part, 4... Mounting bracket, 5... Screw.

Claims (1)

[Scope of utility model registration request] In a chair constructed by attaching armrests A to both elbow pipes 2 in the front and back directions installed above both sides of the seat part 1, at least the inner half of the outer circumference of the elbow pipes 2 is provided at the center of the synthetic resin armrest A in the width direction. A thin wall portion a1 having a width that can be joined to the elbow pipe 2 is formed, and thick wall portions a2 and a3 whose upper outer surface 3 is a wide plane are formed at both ends of the armrest A. This armrest structure is characterized in that both thick-walled parts a2 and a3 are joined to the top and bottom of a fixed mounting bracket 4 and are attached by tightening screws 5 from below.