JPS642455Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a handle attachment device used when carrying a radio receiver, tape recorder, etc., and provides a new mechanism.

Generally, a portable handle consists of a handle that is directly held in the hand and a handle mounting piece that holds the handle and connects it to a cabinet, etc. When fixing the handle and the handle mounting piece, a protrusion with a mounting hole is used in the handle mounting piece. A handle is fitted into this protrusion, and then a screw is screwed into the protrusion from the side and is tightened and fixed.

Therefore, with this type of product, it is necessary to first drill a pilot hole in the protrusion of the handle attachment piece, tap it, cut a female thread, and then screw a screw into the hole. That is, this requires three steps: drilling a pilot hole, tapping a screw, and tightening a screw. In order to save labor in this process, a method is also used in which a tatsupin screw is used instead of a regular screw, the tapping step is omitted, and the tatsupin screw is screwed directly into the prepared hole to perform both tapping and screw tightening at the same time. .

However, even with the above-mentioned method using a tuft pin screw, it is necessary to drill a pilot hole in advance, and this step cannot be omitted. If the handle attachment piece is made of a molded product, it is possible to mold it into a shape with a pilot hole punched at the same time as the molding, but this requires a complicated split mold and increases the manufacturing cost of the mold. There were also problems such as a decrease in the efficiency of the molding operation.

Furthermore, when attaching the handle and the handle attachment piece, the dimensions of the respective parts vary due to manufacturing reasons, and play inevitably occurs at the fitting portion, creating gaps and steps, resulting in an unsightly appearance.

The present invention eliminates the above-mentioned conventional drawbacks and provides an excellent handle attachment device that is simple in construction, easy to manufacture, and can be easily and securely attached.

Hereinafter, the handle attachment device of the present invention will be explained with reference to drawings of one embodiment. In the figure, reference numeral 1 denotes a handle attachment piece, in which a shaft portion 2 formed on the inner surface of the end portion is rotatably coupled to the side surface of a radio receiver, tape recorder, or other portable equipment. A protrusion 4 having a groove 3 in the axial direction is integrally formed on the inner surface of the tip. Reference numeral 5 designates a pipe-shaped handle whose both ends are fitted and fixed to the protrusion 4, respectively, and a through hole 6 for inserting a tapping screw is formed on one side facing the cut groove 3. A tapping screw 7 is inserted into the through hole 6 and screwed into the cut groove 3, and its thickness is set to be slightly larger than the width of the cut groove 3.

In the above embodiment, both ends of the handle 5 are fitted into the protrusion 4 integrally formed on the inner surface of the tip of the handle attachment piece 1, and in this state, the tapping screw 7 is inserted into the through hole 6 and inserted into the cut groove 3. Tapping screw 7 when screwed in
are sequentially screwed into the kerf 3 while cutting a female thread in the kerf 3. In this case, tapping screw 7
Since the thickness of the groove 3 is slightly thicker than the width of the groove 3, the protrusions 4a and 4b on both sides of the groove 3 are arranged in a direction in which they spread out from each other (i.e., in the direction of arrows a and b in Fig. 4). ) and is strongly pressed against the inner surface of the handle 5. Therefore, when the tapping screw 7 is screwed into the cut groove 3 and fixed, there is no play between the protrusion 4 and the handle 5, and an extremely strong attachment condition is obtained. Since it is tightened using the tapping screw 7, it is possible to tighten and fix the end of the handle in close contact with the inner surface of the handle mounting piece 1, and the gap between the two can be made as small as possible. can.

In the embodiment, an axial cut groove 3 is formed in the center of the protrusion 4, so that the protrusions 4a and 4b on both sides of the cut groove 3 have approximately the same size. However, as shown in FIG. 5, it is also possible to configure one protrusion 4b to be thinner than the other protrusion 4a. In this way, the thinner protrusion 4b
Only the thicker protrusion 4a widens in the direction of the arrow c, and the positional relationship between the handle 5 and the handle attachment piece 1 can be accurately regulated using the thicker protrusion 4a as a reference. Further, in the embodiment, the handle 5 is formed into a pipe shape, but the handle 5 does not necessarily have to be shaped as a pipe as long as through holes into which the protrusions 4 are fitted are formed at both ends.

As is clear from the above embodiments, in the handle attachment device of the present invention, a protrusion having a groove in the axial direction of the handle is integrally formed on the handle attachment piece, and both ends of the handle are fitted into this protrusion. , the tapping screw is screwed into the groove from the side of the handle,
Since it is sufficient to simply form a kerf on the protrusion of the handle attachment piece, it can be easily molded using a simple mold. When the handle is fitted into the protrusion and the tapping screw is screwed into the groove formed in the protrusion from the side surface of the handle, the handle is completely fixed to the protrusion and the attached state is extremely strong. In this case, since the tapping screw can be screwed into any position in the cut groove, it is possible to tighten and fix the end surface of the handle in complete contact with the inner surface of the handle mounting piece, thus improving the appearance. It can be made visually appealing and is extremely advantageous in practical terms.

[Brief explanation of the drawing]

Fig. 1 is a side view of one embodiment of the handle attachment device of the present invention, Fig. 2 is a sectional side view of the same essential parts, Fig. 3 is a sectional side view taken along line A-A' in Fig. 2, and Fig. 4 is a side view of an embodiment of the handle attachment device of the present invention. FIG. 5 is an enlarged sectional view of the main part of another embodiment. 1... Handle mounting piece, 2... Shaft, 3... Cut groove,
4...Protrusion, 5...Handle, 6...Through hole, 7...Tapping screw.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A handle with a through hole formed in the axial direction from at least both end faces, and a handle mounting piece that protrudes from both end faces of the handle in a direction perpendicular to the axial direction of the handle. and a protrusion provided on each of these handle attachment pieces and extending in the axial direction of the handle so that it can be fitted into each through hole on both end faces of the handle, and a protrusion on each of the handle attachment pieces. a cut groove provided in the axial direction of the handle so as to divide the handle into two; and a through hole provided on the side surfaces of both ends of the handle and facing the cut grooves of each protrusion of the handle attachment piece. , a tapping screw that is screwed into the cut groove of the protrusion through these through holes, expands the protrusion divided into two by the cut groove, and tightens and fixes the handle to each of the handle fixtures; Equipped with a handle attachment device. (2) Form a kerf at a position slightly offset from the center of the protrusion, sandwich the kerf so that one of the protrusions facing each other is thicker and the other is thinner, and insert a tapping screw into the kerf. The handle attachment device according to claim 1, which is configured so that only one of the protrusions is pushed out when screwed in.