JP3052051U - Rubber caps for furniture legs - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a rubber cap which is fit to the floor or carpet and has excellent durability, as a rubber cap fitted to the lower end of a furniture leg. A wear-resistant plate made of natural leather or synthetic leather is integrally insert-molded on a lower surface of a bottom portion of a cap body. The wear-resistant plate 4 made of natural leather or synthetic leather is tough and slippery, so that the bottom 3a of the cap body 3 can be prevented from fraying and floor and carpet can be prevented from being damaged. Further, the wear-resistant plate 4 made of natural leather or synthetic leather does not damage the floor side even if the user steps on a small hard object.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a rubber cap which is fitted to the lower end of a furniture leg such as a chair or a table in order to prevent a floor or a carpet from being damaged.

[0002]

[Prior art]

 Rubber caps made of rubber-like elastic materials such as nitrile butadiene rubber (NBR), which has high elasticity and tensile strength, are easy to fit into the lower ends of furniture legs, do not come off easily after fitting, and have excellent cushioning properties. It is frequently used in Recently, a wear-resistant plate has been joined to the lower surface of the bottom of the rubber cap as an improved product to prevent the bottom of the rubber cap from being worn and thinned due to frequent rubbing on the floor surface and being worn away. There is something integrated. The wear-resistant plate is made of polytetrafluoroethylene.

[0003]

[Problems to be solved by the invention]

 However, the wear-resistant plate made of polytetrafluoroethylene is hard and inferior in elasticity, so that it is easy to scratch the floor side when stepping on small and hard objects such as zempins, sewing needles, and sand. was there.

[0004] Therefore, an object of the present invention is to provide a rubber cap for a leg for furniture that is excellent in abrasion resistance and durability while ensuring slipperiness on floors and carpets, and is gentle on floors and carpets and does not damage. Is to provide.

[0005]

[Means for Solving the Problems]

 As shown in FIG. 1, the rubber cap of the leg for furniture of the present invention has a wear-resistant plate 4 made of natural leather or synthetic leather on the lower surface of the bottom 3a of the cap body 3 formed of a rubber-like elastic material and having a bottom. It is one that is integrally insert molded.

As shown in FIG. 2, a wear-resistant plate 4 made of natural leather or synthetic leather is provided on the lower surface of the cap body 3 so that an outer peripheral edge 4a of the wear-resistant plate 4 projects integrally downward from the outer periphery of the lower surface of the bottom portion 3a. 3b, and can be integrally insert-molded so that the lower surface of the wear-resistant plate 4 protrudes downward from the lower surface of the outer peripheral protruding edge 3b.

As shown in FIG. 3, an upwardly directed outer peripheral edge 4a of the wear-resistant plate 4 made of natural leather or synthetic leather on the lower surface of the cap body 3 covers the entire lower end of the outer peripheral side surface 3c of the bottom 3a. As described above, it is also possible to integrally perform insert molding.

[0008]

[Action]

 Since the wear-resistant plate 4 is made of natural leather or synthetic leather, it can secure slipperiness on floors and carpets and has gentle elasticity. Further, since the wear-resistant plate 4 has elasticity, even if a hard object such as zempin or sand is trampled, it is locally dented, so that the floor is not damaged. The wear-resistant plate 4 is integrally bonded to the lower surface of the cap body 3 by insert molding more firmly than when it is attached with an adhesive, so that the wear-resistant plate 4 does not come off and is excellent in durability. Since the wear-resistant plate 4 can be joined and integrated at the same time as the molding of the cap main body 3, the number of processing steps is small, which is advantageous.

When the wear-resistant plate 4 is insert-molded so that the outer peripheral edge 4 a of the wear-resistant plate 4 is surrounded by the outer peripheral protrusion 3 b on the lower surface of the cap body 3, another object touches the outer peripheral edge 4 a of the wear-resistant plate 4. It is possible to prevent the wear-resistant plate 4 from peeling off and falling off. When the upwardly directed outer peripheral edge 4a of the wear-resistant plate 4 covers the entire lower end of the outer peripheral side surface 3c of the bottom 3a, the entire lower end of the outer peripheral side surface 3c of the bottom 3a can be reinforced. Since the contact area between the wear-resistant plate 4 and the bottom portion 3a is increased, the degree of integral joining can be increased, and this is particularly advantageous for preventing the wear-resistant plate 4 from peeling off even when the diameter of the rubber cap is small.

[0010]

[Effect of the invention]

 Therefore, according to the present invention, the wear resistance plate 4 made of natural leather or synthetic leather is integrally formed on the lower surface of the bottom portion 3a of the cap body 3 by insert molding, so that slipperiness with respect to the floor or carpet can be secured. The bottom 3a of the cap body 3 can be prevented from being worn away, and the floor and the carpet can be well prevented from being damaged. In particular, since the wear-resistant plate 4 made of natural leather or synthetic leather has high elasticity, even if a small hard object is stepped on, the floor side is not damaged. Further, the wear-resistant plate 4 made of natural leather or synthetic leather can be firmly and integrally joined by insert-molding the bottom portion 3a of the cap body 3, and the durability can be improved in combination with the toughness.

[0011]

[Embodiment of the invention]

 (First Embodiment) A first embodiment of the present invention will be described with reference to FIG. In FIG. 1, 1 is a leg for furniture such as a chair or a table, and 2 is a rubber cap of the present invention. The rubber cap 2 is made of a rubber-like elastic material, and is formed of a cap body 3 having a bottom with a circular or polygonal cross section corresponding to the cross sectional shape of the lower end of the furniture leg 1. And a wear-resistant plate 4 made of natural leather or synthetic leather, which is integrally insert-molded with the lower surface of the bottom 3a in a superposed state.

The rubber-like elastic material of the cap body 3 is, for example, a synthetic rubber such as nitrile butadiene rubber (NBR) or styrene butadiene rubber (SBR), or a thermoplastic elastomer such as polyolefin, styrene or vinyl chloride. Is used. The natural leather forming the wear-resistant plate 4 is cowhide or the like, and the synthetic leather is a base cloth coated with a porous layer of polyamide, polyurethane or the like. These natural and synthetic leathers have higher elasticity than polytetrafluoroethylene, and even if they are trampled on a small hard object such as zempin or sand, they will be locally dented, preventing scratches on the floor. Can be avoided. In addition, it is also conceivable to use felt, for example. However, felt must be at least 3.0 to 3.5 mm thick because it is easily worn and inferior in durability, but according to natural leather or synthetic leather, it is about 1.5 to 2.0 mm thick. A wear-resistant plate 4 that is tougher and more durable than felt can be obtained even if it is as thin as.

Second Embodiment When the joint surface between the wear-resistant plate 4 and the bottom 3a is exposed on the outer peripheral side surface 3c of the bottom 3a as shown in FIG. The wear-resistant plate 4 is easily touched or caught, causing the wear-resistant plate 4 to peel off or fall off, and has a poor appearance. Therefore, when performing insert molding using the above-mentioned molding material, the wear-resistant plate 4 is cut slightly smaller than the lower surface area of the bottom portion 3a of the cap body 3 and is held in a mold, and is thus heated and pressed. By forming the bottom 3a of the cap body 3 as a molded product so as to be pressed against the abrasion-resistant plate 4, the outer peripheral edge 4a of the abrasion-resistant plate 4 extends from the outer periphery of the lower surface of the bottom 3a as shown in FIG. The insert is formed so as to be surrounded by an outer peripheral edge 3b integrally projecting downward, and that the lower surface of the wear-resistant plate 4 bulges downward from the lower surface of the outer peripheral edge 3b.

In the rubber cap 2 thus formed, the joint surface between the wear-resistant plate 4 and the bottom 3a is covered with the outer peripheral edge 3b without being exposed on the outer peripheral side surface 3c of the bottom 3a. Can be prevented from touching the outer peripheral edge 4a of the wear-resistant plate 4, which is effective for preventing the wear-resistant plate 4 from peeling off and falling off, and improving the appearance.

Third Embodiment The wear-resistant plate 4 is prepared by cutting the wear-resistant plate 4 slightly larger than the lower surface area of the bottom 3a of the cap body 3, and as shown in FIG. The outer peripheral edge 4a is integrally insert-molded so as to cover the entire lower end of the outer peripheral side face 3c of the bottom 3a. According to this, the wear-resistant plate 4 can reinforce not only the lower surface of the bottom portion 3a but also the lower end of the outer peripheral side surface 3c. Further, the contact area between the wear-resistant plate 4 and the bottom 3a can be increased by the extent that the upwardly directed outer peripheral edge 4a of the wear-resistant plate 4 covers the entire lower end of the outer peripheral side surface 3c of the bottom 3a. 2, even when the bottom surface area of the bottom 3a is small, the insert molding can be firmly performed so that the wear-resistant plate 4 does not peel off.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing a state in which a rubber cap according to a first embodiment is attached to a lower end of a furniture leg.

FIG. 2 is a vertical sectional front view showing a state in which a rubber cap according to a second embodiment is attached to a lower end of a furniture leg.

FIG. 3 is a longitudinal sectional front view showing a state in which a rubber cap according to a third embodiment is attached to a lower end of a furniture leg.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Furniture leg 2 Rubber cap 3 Cap main body 3a Bottom part 3b Outer peripheral edge 3c Outer peripheral side surface 4 Wear-resistant plate 4a Outer peripheral edge

Claims (3)

[Utility model registration claims] 1. A rubber cap which is externally fitted to the lower end of a furniture leg 1 and has a bottom surface 3a of a cap body 3 formed of a rubber-like elastic material and having a bottom, and has a lower surface made of natural leather or synthetic leather. A rubber cap for a furniture leg, wherein the wear plate 4 is integrally formed by insert molding. 2. A rubber cap externally fitted to the lower end of the furniture leg 1, and a lower surface of a bottom 3a of a cap body 3 formed of a rubber-like elastic material and having a bottom, and a lower surface made of natural leather or synthetic leather. An outer peripheral protruding edge 3b having an outer peripheral edge 4a integrally protruding downward from the outer periphery of the lower surface of the bottom portion 3a.
And a lower end of the wear-resistant plate 4 is integrally insert-molded so as to protrude downward from a lower surface of the outer peripheral rim 3b. 3. A rubber cap to be externally fitted to the lower end of the furniture leg 1, on the lower surface of a bottom 3a of a cap body 3 formed of a rubber-like elastic material into a bottomed cylindrical shape, made of natural leather or synthetic leather. A rubber cap for a furniture leg, wherein the wear plate 4 is integrally insert-molded so that an upwardly directed outer peripheral edge 4a covers the entire lower end of an outer peripheral side surface 3c of a bottom portion 3a.