JP2000333776A - Armrest device of chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a comfortable armrest feeling by supplying a soft touch to an arm with a simple structure. SOLUTION: In an armrest device 1 of a chair having an armrest receiving body 7 and a pad member 8 covered with a cover and forming a space in the upper surface of the armrest body 7, the pad member 8 is composed of a mesh structure part 9 on its upper surface, a core material 10 made of a rigid synthetic resin with a suitable elasticity and a face material 11 made of a soft synthetic resin with which the upper surface of the core material 10 is covered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an armrest device for a chair.

[0002]

2. Description of the Related Art In an armrest device of a chair, a light and elastic padding such as sponge or felt is sandwiched between an armrest receiving body provided on an upper part of an armrest support and a covering material. There is something that allows a soft feel to be transmitted to the elbow when the elbow is placed.

[0003]

However, in the conventional armrest device in which the padding is sandwiched, when the weight is leaned on the armrest, the padding is completely crushed and the softness is transmitted to the elbow. There is a problem that does not come. In addition, there is a problem that the work of inserting the filling is troublesome and troublesome, and the manufacturing cost is increased. Furthermore, when the surface material is worn out over a long period of use, there is a problem in that the padding is exposed or protrudes from the surface material, and the appearance is impaired.

[0004] In view of the above problems, an object of the present invention is to provide an armrest device for a chair which can transmit a soft feel to the elbow with a simple structure without using any padding.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) An armrest device for a chair comprising an armrest receiver and a pad member which covers and covers a space formed on the upper surface of the armrest receiver, the pad member having a mesh structure on the upper surface. It is formed of a core material made of a hard synthetic resin having an appropriate elasticity and a surface material made of a soft synthetic resin that covers the upper surface thereof.

(2) In the above item (1), the core material is formed in a dome shape in which a central portion is raised with respect to a peripheral edge portion.

(3) In the above item (1) or (2), the thickness of the central portion of the surface covering material is thinner than the peripheral portion.

(4) In any one of the above-mentioned items (1) to (3), a plurality of female screw cylinders are provided on the lower surface of the peripheral portion of the core material, the plurality of female screw cylinders being attached to the elbow support receiver by screws.

(5) In any one of the above items (1) to (4), the core material and the surface material are integrated by insert molding.

(6) In any one of the above items (1) to (5), the material of the core material is polyethylene terephthalate.

(7) In any one of the above items (1) to (6), the material of the facing material is an elastomer resin.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the armrest device (1) of the chair can be height-adjusted to an armrest support (4) that stands slightly inclined forward from both sides of a seat (3) on a leg support (2). It is provided substantially horizontally at the upper end of the attached lifting rod (5). Adjust the height of the lifting rod (5)
This is performed by grasping the operation lever (6) provided at the front part of (5) together with the lifting / lowering rod (5).

As shown in FIG. 2, the armrest device (1) includes an armrest receiver (7) attached to the upper part of the lifting rod (5), and a space above the upper surface of the armrest receiver (7). Pad member (8) covered so that part (1a) (see FIGS. 6 and 7) is formed.
And As shown in FIGS. 1-3, a pad member
(8) is made of a hard synthetic resin having moderate elasticity, which is formed in a dome shape in which the central portion (10b) is gently raised with respect to the peripheral portion (10a), and the upper surface has a lattice-like mesh structure (9). Core material (10) and a cover material made of a soft synthetic resin which is insert-molded integrally with the core material (10) so as to cover the upper surface thereof.
(11). The outer covering material (11) has a thinner portion at the central portion (11b) than at the peripheral portion (11a).

The core material (10) is made of polyethylene terephthalate, and the surface material (11) is made of a polyester elastomer having flexibility and elasticity. Polyethylene terephthalate, commonly called PET (PET), has a high degree of crystallinity because it contains a benzene ring in the molecular chain, and is used in beverage containers such as PET bottles, photographic films, magnetic tapes, etc. ,
Because of its excellent electrical properties, it is also used in connectors, electrical and electronic parts, motor parts, and the like. In addition, since the specific gravity is about 1.34 and the specific gravity of a polyolefin such as polyethylene is less than 1, separation with water is easy, and the synthetic resin has favorable conditions suitable for recycling. Therefore, by using PET (PET) resin as the core material (10), not only the waste products of the above-mentioned products, such as PET bottles consumed in large quantities, can be recycled and manufactured at low cost, but also the cost can be reduced. It can also contribute to resource and garbage issues.

[0015] The pad member (8) is connected to the peripheral portion (10) of the core material (10).
a) Four female screw cylinders (12) integrally projecting downward at four corners of the lower surface, and also serving as spacers integrally projecting from the upper surface (7a) of the elbow support receiving body (7). The screw (14) inserted from below into the bosses (13) is screwed into the
A required space (1a) is provided at the upper part of (7) and attached.

As shown in FIG. 10, the upper end of the peripheral part (7b) of the elbow rest (7) and the downward peripheral part (11) of the facing material (11).
Steps (7c) and (11c) that engage with each other are formed at the lower end of (a), and the space (1a) of the armrest device (1) is substantially sealed.

In the armrest device (1) of the above embodiment, a space (1a) is provided between the armrest receiver (7) and the pad member (8).
Is formed, and the upper surface of the core material (10) is formed as a mesh structure (9). Therefore, as shown in FIGS. 8 and 9, the upper surface of the core material (10) is elastically deformed downward and easily bent. Therefore, when the elbow is put on the upper surface of the facing material (11) made of polyester elastomer, a soft feeling is transmitted to the elbow,
A moderate sense of elasticity is also transmitted, providing a comfortable armrest feeling.

In the above embodiment, the core material (10)
Is formed of a hard resin material to provide strength to the whole core material and to make it easy to elastically deform downward, the upper surface is formed in a grid-like mesh structure (9). The shape may be a punching plate having a large number of holes, and the shape of the holes may be non-circular or circular. Further, the portion of the mesh structure (9) in the core (10) may be formed of a synthetic resin material different from the core (10).

[0019]

According to the first aspect of the present invention, the upper surface of the pad member is elastically deformed downward and is easily bent, and the surface is soft. A comfortable sense of armrest can be obtained as well as a sense of elasticity and a sense of elasticity.

According to the second aspect of the present invention, the upper surface of the pad member is easily bent downward, and the feeling of armrest is further improved.

According to the third aspect of the present invention, the central portion of the surface material is easily bent, so that the feel of the armrest is improved.

According to the fourth aspect of the present invention, the pad member can be easily and reliably attached to the elbow rest receiving member by the screw.

According to the fifth aspect of the present invention, the pad member composed of the core material and the surface material can be easily manufactured in one molding step, and the cost can be reduced.

According to the sixth aspect of the present invention, waste materials such as PET bottles can be recycled and manufactured at low cost, thereby saving resources.

According to the seventh aspect of the present invention, since the surface material itself has some elasticity, a comfortable armrest feeling can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a chair provided with the armrest device of the present invention.

FIG. 2 is an exploded perspective view of the armrest device.

FIG. 3 is a perspective view of the pad member as viewed from below.

FIG. 4 is an exploded perspective view of the pad member.

FIG. 5 is a plan view of the pad member.

6 is a vertical sectional side view taken along the line VI-VI in FIG. 5;

FIG. 7 is a vertical sectional front view taken along line VII-VII in FIG. 5;

FIG. 8 is a longitudinal sectional side view when a pressing force is applied to a pad member.

FIG. 9 is a longitudinal sectional front view when a pressing force is applied to a pad member.

FIG. 10 is an enlarged view of a portion X in FIG. 6;

[Explanation of symbols]

 (1) Armrest device (1a) Space (2) Leg support (3) Seat (4) Armrest support (5) Lifting rod (6) Operation lever (7) Armrest receiver (7a) Upper surface (7b) Peripheral edge Part (7c) Step part (8) Pad member (9) Mesh structure (10) Core material (10a) Peripheral part (10b) Central part (11) Exterior material (11a) Peripheral part (11b) Central part (11c) Step (12) Female thread (13) Boss (14) Screw

Claims (7)

[Claims] 1. An armrest device for a chair comprising: an armrest receiver; and a pad member which forms a space in the upper surface of the armrest receiver and is covered by the armrest device. An armrest device for a chair, comprising a hard synthetic resin core material having a moderate elasticity and a soft synthetic resin covering material covering the upper surface thereof. 2. The armrest device for a chair according to claim 1, wherein the core material is formed in a dome shape in which a central portion is raised with respect to a peripheral edge portion. 3. The armrest device for a chair according to claim 1, wherein a thickness of a central portion of the outer covering material is thinner than a peripheral portion thereof. 4. A plurality of female screw cylinders provided on a lower surface of a peripheral portion of a core member by screws on an elbow support receiving body.
4. The armrest device for a chair according to any one of items 1 to 3. 5. The armrest device for a chair according to claim 1, wherein the core material and the surface material are integrated by insert molding. 6. The armrest device for a chair according to claim 1, wherein the core material is polyethylene terephthalate. 7. The armrest device for a chair according to claim 1, wherein the material of the facing material is an elastomer resin.