JPS633449Y2 - - Google Patents

Description

[Detailed Description of the Invention] (A) Technical Field of the Invention The present invention relates to a locking part for screws used when fixing a cover to an apparatus main body.

(B) Prior art and problems The conventional method will be explained below with reference to FIGS. 1 and 2. FIG. 1 is a front view of the device body with a cover attached thereto, and FIG. 2 is a sectional view taken along A-B of FIG. 1. In the figure, 1 is the device body, 2 is the cover, 3 is the hook-shaped locking part,
4 is a threaded portion, 5 is a neck screw, and 6 is a retaining ring. The method for fixing the cover 2 to the device body 1 is to first hook the hook-shaped locking portion protruding from the cover 2 onto the edge 7 of the hole provided in the device body 1, and then tighten the screw provided in the device body 1. A so-called necked screw 5 in which the neck portion of the screw is cut to a diameter equal to or smaller than the root diameter of the screw is screwed into the portion 4 via the cover 2. After the necked screw 5 is inserted into a hole drilled in the cover 2, a retaining ring 6 is fitted to its neck to prevent it from being removed. Since the hook-shaped locking portion 3 of the cover 2 is engaged with the edge 7 of the device body 1, the threaded portion 4 of the device body 1 cannot be screwed in or removed with the neck screw 5 in this state. Therefore, the length of the necked screw 5 is equal to or longer than the engraved portion of the thread, and is provided protruding inside the device main body 1. In addition, since it is necessary to engage the hook-shaped locking part 3 of the cover 2 with the edge part 7 of the device main body 1 before screwing the necked screw 5 into the threaded part 4, the vertical direction in the figure is The diameter of the threaded portion 4 of the device main body 1 (dimension D in FIG. 2) is required to be larger than the dimension in which the hook-shaped locking portion 3 engages with the edge portion 7 in the direction of arrow C. Therefore, as explained above, in this configuration, the device main body 1
The threaded portion 4 not only protrudes largely into the hole provided in the device body 1, but also protrudes into the interior of the device body 1, resulting in a reduction in component mounting efficiency and, in turn, being an obstacle to miniaturization design.

(C) Purpose of the invention The purpose of the present invention is to solve the above-mentioned drawbacks, and to provide a screw locking part that does not allow the threaded portion to protrude from the back side of the cover.

(D) Structure of the invention In order to achieve the above object, the invention includes a threaded part into which the screw is threaded, and an adhesive part which is attached to the main body of the device or an object to be fixed. The present invention provides a screw locking component configured such that, when attached to the device, the screw threaded into the threaded portion separates from the device main body.

(E) Embodiment of the invention An embodiment of the invention will be described below with reference to FIGS. 3 to 5. Figure 3 shows the screw locking part of the present invention; Figure a is a perspective view, Figure b is a developed view, and Figure 4 shows a cover for the main body of the device when the screw locking part of the present invention is used. FIG. 5 is an enlarged view of section E in FIG. 4 showing the case where the screws have been removed from the main body of the device. In the figure 8
9 is a screw, and 9 is a screw locking component. As shown in FIG. 3, the screw locking component 9 of the present invention has a shape in which two discs are partially connected, as shown in the exploded view of FIG. 3b. One disc has a hole 10 with approximately the same diameter as the incompletely threaded part under the neck of the screw 8 to be inserted or the neck of the necked screw, and the other disc has a hole 10 with the diameter of the screw 8. A sufficiently larger hole 11 is bored.
The material is made of a thin elastic material such as polyester film, and as shown in Figure 3a, it is bent at the connecting part of two discs, and the tip has a V shape.
It is formed to open in the shape of a letter. When using the screw-locking part 9 having such a structure, the disc with the hole 11 bored therein is attached to the cover 2 using, for example, adhesive, as shown in FIG. 3a. Thereafter, the screw 8 is screwed into the hole 10 as shown in FIG. 5, so that the screw 8 is engaged with the cover 2. In this case, the screw 8 is raised relative to the cover 2, and the tip of the screw 8 is set to a length that does not protrude from the back surface of the cover 2. With this configuration, when the cover 2 is attached to the device main body 1 as shown in FIG. After attaching the cover 2 to the main body 1 of the apparatus, the cover 2 may be screwed into the screw 8 cut into the main body 1 of the apparatus. As can be seen in FIG. 4, since the screw 8 does not protrude from the back surface of the cover 2, the threaded portion 12 of the device main body 1 does not need to protrude into the inside of the device, making it smooth and easy to manufacture, and also improving the efficiency of mounting components inside the device. This has made it possible to create smaller designs.

(F) Effect of the invention As explained above, by using the screw locking part according to the invention, the structure of the screw part on the device main body side is simplified, and there is no protrusion into the inside of the device, which improves component mounting efficiency. This has the effect of making it possible to reduce the size of the design.

[Brief explanation of the drawing]

Fig. 1 is a front view of the cover attached to the main body of the device, Fig. 2 is a sectional view taken along A-B of Fig. 1, Fig. 3 shows the screw locking part of the present invention, and Fig. a is a perspective view. Figure b is a developed view, Figure 4 is a side sectional view showing how the cover is attached to the device body when using the screw locking part of the present invention, and Figure 5 is an enlarged view of section E in Figure 4. It is a figure which shows the case where a screw is removed from an apparatus main body. In the figure, 1 is the main body of the device, 2 is a cover, 3 is a hook-shaped locking portion, 4 is a screw portion, 5 is a necked screw, 6 is a retaining ring, 8 is a screw, and 9 is a screw locking part.

Claims (1)

[Scope of utility model registration request] A screw locking part that removably fixes the fixed member to the main body of the device, the locking part is bent near the center, a screw is screwed into one of the bent ends, and a screw is screwed into the other of the bent parts. A screw locking component characterized by having a hole sufficiently larger than the diameter of the screw, through which the screw is loosely inserted, and which locks the screw by being attached to a member to be fixed. .