JPS5927085Y2 - Synthetic resin clamper on metal substrate - Google Patents

Description

[Detailed description of the invention] The present invention is a synthetic resin clamper on a metal substrate in which a spring locking portion is provided on the synthetic resin band produced when multiple synthetic resin parts of a desired shape are molded on a metal substrate. .

Conventionally, in order to lock a spring on this type of metal substrate, a clamp fitting exclusively for locking has been prepared, and the spring has often been locked to this clamp fitting and screwed to the metal substrate.

However, this increases the number of parts, requires time for screw tightening in the process, and also has disadvantages such as the design of the clamp fittings being held in a variety of ways depending on the size, which increases mold costs. was there.

In addition, since this kind of conventional clamp fittings usually have a one-point support structure using a single screw, they have the disadvantage that they are susceptible to looseness due to loosening of the screw or the like.

The present invention was developed in view of the above circumstances, and the locking portion of the spring is attached to the synthetic resin band that is created when a plurality of synthetic resin parts are molded on a metal substrate and connects each part. By integrally molding the parts and the synthetic resin band, it eliminates the need for separate clamp fittings, reducing the number of parts, reducing the number of processes, and simplifying manufacturing.
It is an object of the present invention to provide a synthetic resin clamper on a metal substrate that is always supported at two or more points so that looseness is less likely to occur.

The invention will be described in detail by means of illustrated embodiments.

FIG. 1 is a perspective view showing an embodiment of the synthetic resin clamper according to the present invention, in which 1 is a metal substrate, 2
a and 2b are synthetic resin parts of a desired shape implanted by molding on the metal substrate 1; 3 are a plurality of synthetic resin parts 2a and 2;
A synthetic resin band shaped by a runner when molding b,
A locking portion 5 for locking the spring 4 is formed on the synthetic resin band 3, and this locking portion 5 has a through hole 6 formed in a part of the synthetic resin band 3, and a bridge above the hole 6. The portion 7 is used as the locking portion 5.

Next, the method for molding the synthetic resin clamper of the above example was carried out in a second manner.
This will be explained with reference to FIG.

The metal substrate 1 has a cylindrical synthetic resin component 2a.

At the position where the parts 2b are to be implanted, circular holes 8a and 8b having diameters smaller than those of the parts 2a and 2b are formed, and both circular holes 8a
, 8b, a square hole 9 is formed between them.

Moreover, the upper mold A has a model cavity Bl for the synthetic resin parts 2a and 2b.

A runner C is formed which connects B2 and the model cavities Bl and B2, and Dl and B2 are connected to the model cavities B1 and B2.
It is a rod protruding from the center of the top.

On the other hand, in the lower mold E, there is a cavity Bl at a position corresponding to the model cavity Bl and B2, a retaining cavity Fl having the same diameter as B2,
F2 is formed, and a square protrusion G that can be inserted into the square hole 9 formed in the metal substrate 1 is provided protrudingly between the two retaining cavities Fl and F2 at a position corresponding to the square hole 9 formed in the metal substrate 1. be.

Accordingly, as shown in FIG.
a, 8b and the retaining cavities Fl, F2 overlap, and are joined so that the angular projection G is inserted into the angular hole 9.

At this time, the angular protrusion G rushes into the runner C, but does not come into contact with the top surface C1 of the runner C, creating a predetermined gap.

In the above state, the molten synthetic resin material H flows from the runner C.
When injected, the resin material H forms the model cavity 2a.

21b, the square hole 9, the retaining cavities Fl and F2, and the runner C are filled.

After cooling and solidifying the synthetic resin material H, the upper and lower molds A
, E are removed, the synthetic resin parts 2a, 2b and both synthetic resin parts 2a,
A synthetic resin band 3 connecting the parts 2b and a locking part 5 are formed.

FIG. 4 shows another embodiment of the present invention, in which the locking part 5 is a synthetic resin band 3.
It is formed by bulging out a part of the body in an arch shape, and in the drawings, the same appended numbers as in FIG. 1 indicate the same parts.

FIG. 5 further shows another embodiment of the present invention, and FIG. 6 is a sectional view taken along the line II--II in FIG.

The locking part 5 of this embodiment is formed by dividing the bridge part 7 formed by the through hole 6 in the synthetic resin band 3 and providing a notch part 10 on the side surface of one bridge part 7a. 4 is attached to this notch 10.

Reference numeral 11 indicates a synthetic resin piece formed along the inner periphery of the square hole 9.

The present invention, as in Narukami, consists of a plurality of synthetic resin parts 2a, 2.
When molding b on the metal substrate 1, each synthetic resin part 2a,
The locking portion 5 of the spring 4 is attached to the synthetic resin band 3 formed by the runner C so as to connect between the synthetic resin parts 2a and 2b.
, 2b and the synthetic resin band 3 by integral molding, there is no need to separately provide a locking part for the spring 4 as in the conventional case, and the number of parts can be reduced.

Further, the locking portion 5 is formed at the same time as the synthetic resin band 3 is molded.
Since it is formed by a single mold, it is easy to manufacture and the number of steps can be reduced.

Furthermore, according to the present invention, both ends of the synthetic resin band 3 are integrally connected to the synthetic resin parts 2a and 2b, so the locking portion 5 is supported at at least two points. , Its fixation is strong and does not easily shake.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the synthetic resin clamper according to the present invention, Fig. 2 is an exploded perspective view showing the metal substrate and molding die of the clamper, and Fig. 3 is a cross-sectional view of the clamper in an open molded state. , FIG. 4 is a perspective view showing another embodiment of the present invention, FIG. 5 is a perspective view of still another embodiment, and FIG. 6 is a sectional view taken along the line II--II of FIG. 5. 1...Metal substrate, 2a, 2b...Synthetic resin parts, 3...Synthetic resin band, 4...
Spring, 5... Locking part, A, E...
・Mold, C...... runner.

Claims (1)

[Scope of utility model registration request] When molding a plurality of synthetic resin parts of a desired shape on a metal substrate, a locking part capable of locking a spring is attached to a synthetic resin band formed by a runner to connect each synthetic resin part. A synthetic resin clamper on a metal substrate, characterized in that the clamper is provided by integral molding together with a synthetic resin band, and the locking portion is firmly fixed by a multi-point support structure of two or more points.