JPH033221Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to improvements in drawer bars for desks, cabinets, etc.

Conventional Technology Conventionally, this type of drawer frame has been made of foamed ABS resin or plywood cut into thin strips and has a rectangular cross section.

Problems to be solved by the invention According to the above-mentioned conventional drawer bars, the deflection strength against the load is insufficient. It had poor abrasion resistance and could not withstand long-term use. Therefore, a hard material with excellent flexural strength and high wear resistance is required. However, with hard materials, there was a problem that the drawer bars would break when they were attached to the cabinet by hammering.

The object of the present invention is to solve these problems and provide a drawer bar that has excellent flexural strength, high wear resistance, and is easy to install.

Means for Solving the Problems In order to achieve the above object, the present invention has the following configuration. In other words, it is a drawer frame in which a soft vinyl chloride plate is fixed to the groove bottom surface of a U-shaped hard vinyl chloride body using a simultaneous molding method.

Function The drawer is slidably supported by the drawer crosspiece through crosspiece grooves provided on both sides of the drawer, and is pulled out in its length direction.

Embodiment The present invention will be described below based on an embodiment shown in the drawings.

As shown in FIGS. 1 and 2, the drawer bar 10
is formed by integrally molding a soft vinyl chloride plate 12 fixed to the bottom surface of a groove 11C of a channel steel-like, that is, U-shaped, main body 11 made of hard vinyl chloride by a known simultaneous molding method. This drawer bar 10 is fixed by bringing the back side of the web portion 11a into close contact with the inside of the flat plate 1a forming both side plates of the cabinet 1, matching the left and right heights, and driving the tacker 3 from the groove 11C side ( Figure 2).

The drawer 2 is slidably supported along the length direction of the drawer bar 10 via a bar groove 2a formed on the outer surface of its side plate.

In carrying out the above simultaneous molding method, the main body 11 and the soft vinyl chloride plate 12 are simultaneously extruded and brought into contact with each other using two types of adjacent extrusion molds to form a joint.

Soft polyvinyl chloride is made by adding 40 to 100 parts by weight of a plasticizer to give it flexibility, while hard polyvinyl chloride is made by adding 0 to 15 parts by weight to improve fluidity and impact resistance during processing. (The above is from the Chemical Handbook, Applied Edition, published by Maruzen Co., Ltd., March 15, 1980.
(quoted from page 786).

According to the present invention, the main body 11 of the drawer bar 10 is made of hard vinyl chloride and has a U-shape, and the web portion 11
Since the thickness of a is small and the soft vinyl chloride plate 12 is integrally molded on the bottom of the groove, even if the main body 11 is made of hard vinyl chloride, the web portion 1
It is easy to drive a tacker into 1a, and no cracks occur.

On the other hand, the drawer bar 10 mainly supports the load of the drawer 2 on the upper surface of the flange portion 11b, and the upper surface of the upper flange portion 11b and the lower surface of the lower flange portion 11b serve as sliding surfaces with the drawer 2, respectively. Since the drawer bar body 11 is made of hard vinyl chloride and has a U-shape, it can withstand the load and wear of the drawer 2 well.

Effects of the invention As described above, the drawer frame of the present invention has excellent flexural strength and high wear resistance because it is made by fixing a soft vinyl chloride plate to the bottom of the groove of the U-shaped hard vinyl chloride body using a simultaneous molding method. , and is easy to install. Moreover, when this is attached to a cabinet or the like, drawers can be opened and closed smoothly, and the drawer can be used for a long period of time.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a perspective view of its usage. 1... Cabinet, 2... Drawer, 3... Puller, 10... Drawer bar, 11... Hard vinyl chloride main body, 12... Soft vinyl chloride plate.

Claims (1)

[Scope of utility model registration request] A drawer rail characterized in that a soft vinyl chloride plate is fixed to the groove bottom of a U-shaped hard vinyl chloride body using a simultaneous molding method.