JPH04101995U - Parts mounting device - Google Patents

Abstract

(57) [Summary] [Purpose] Regarding a component mounting device that removably attaches components to the board of a magnetic recording/reproducing device, the frictional force between the board and the component mounting tool that holds the component to be mounted between the board and the board is The purpose is to be able to securely fix parts even when they are small. [Structure] A component attachment tool 2 is rotatably formed by outsert molding on a metal substrate 1. An engaging protrusion 2b that engages with a recess 1b formed on the back surface of the metal substrate 1 is formed on the position regulation 2c. The component 3 is mounted on the metal substrate 1 so that the component attachment tool 2 is inserted into the elongated hole 3a, and the component 3 is held between the component fixing part 2a and the metal substrate 1 by rotating the component attachment tool 2. do. At this time, the recess 1b and the engagement protrusion 2b are engaged, and the position after rotation is regulated.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention removably fixes components used in magnetic recording and reproducing devices to a substrate. The present invention relates to a component mounting device for

0002

[Conventional technology]

The composite molding method (so-called outsert molding method), which joins resin to a metal plate, uses magnetic It is widely used in recording and reproducing devices. Conventional component attachment molded using this method The device will be explained with reference to FIG.

0003 2 is a component formed of resin material on the metal substrate 1 by outsert molding method. It is a fitting. This component attachment tool 2 penetrates a through hole formed in the metal substrate 1. , is integrally formed to have a larger diameter than the through hole on both sides, and the front It is rotatable while holding the metal substrate 1 therebetween. Further, the metal substrate 1 On the side where the parts are to be attached, there are parts to be attached between it and that side, which will be described later. The component fixing portions 2a are formed at intervals approximately equal to the thickness l of 3. This section The component fixing portion 2a is a prismatic column formed to protrude laterally from the cylindrical portion of the component mounting tool 2. It is in the form of

0004 3 is, for example, a lever for attaching the operation button of a tape recorder, etc. It shows a part of a part such as -, and the part attachment tool 2 can be inserted inside it. A long hole 3a having a size of 1 is formed.

[0005] Now, when installing components, the component attachment tool 2 is inserted into the elongated hole 3a. The component 3 is placed on the metal substrate 1 as shown in FIG. Then, slide part 3 in its longitudinal direction. After adjusting the position to the specified position, rotate the component mounting tool 2 by 90 degrees to secure the component. The component 3 is clamped and fixed between the fixed portion 2a and the metal substrate 1.

[0006]

[Problem that the idea aims to solve]

As mentioned above, the component 3 is fixed between the metal substrate 1 and the rotating component mount 2. relies on the frictional force of However, the frictional force is It varies depending on the material and molding conditions. Therefore, when the frictional force is small, parts removal In some cases, the fixing tool 2 rotates freely, making it impossible to securely fix the component 3.

[0007]

[Means to solve the problem]

The component mounting device of the present invention to solve the above problems is a component mounting device made of resin material. A state in which the mounting tool is passed through a hole in the board and the board is held from both sides. It is attached to the substrate so as to rotate around the through hole, and between it and one surface of the substrate. with the component mounting hardware, with a spacing equal to the thickness of the component to be attached. A component fixing part that rotates and holds the component between it and the board surface. , a recess formed in the board surface on at least one surface where the component mounting tool contacts the board. An engaging protrusion or engagement part that engages with the part or protrusion and restricts the rotational position of the component mounting part. A matching recess is formed.

[0008]

[Effect]

With the above configuration, when the frictional force between the component mounting tool and the board is small, However, by engaging the concave and convex portions of each other, the position of the component mount after rotation is determined. can be regulated, and parts can be fixed more reliably.

[0009]

【Example】

An embodiment of the present invention will be described below with reference to the drawings. Figure 1 shows the results of this invention. FIG. 2 is a perspective view of a component mounting device in an example. Metal base on the mounting surface side of part 3 The configurations of the plate 1 and the component attachment tool 2 are the same as those of the conventional example, so the explanation will be omitted. An example and the configuration of the side to which part 3 is not attached will be explained.

0010 The component mounting tool 2 facing the surface of the metal board 1 on which the component 3 is not attached has a A hemispherical engagement convex portion 2b is integrated with a position regulating portion 2c formed to protrude from the cylindrical portion. It is molded into.

[0011] On the other hand, as the component mounting tool 2 rotates, the metal substrate 1 has the engaging protrusion 2b. A recess 1a that engages with the engagement protrusion 2b is spaced apart by a rotation angle of 90° on the rotation locus. and 1b are formed. Note that the engaging convex portion 2b is formed during outsert molding. Molding is performed using the recessed portion 1a.

0012 Now, in attaching the parts, first, the recess 1a of the metal substrate 1 and the engaging protrusion 2 are connected to each other. b is engaged, the long axis direction of the component fixing part 2a and the long direction of the elongated hole 3a are flattened. Components 3 are placed in rows in the same manner as before. Then, rotate the component mounting tool 2 at 90°. Rotate to engage the concave portion 1b of the metal substrate 1, and connect the component fixing knob 2a portion 2a with the metal substrate. The component 3 is clamped and fixed between the plate 1 and the plate 1. At this time, the component attachment tool 2 has some elasticity. Therefore, the position regulating portion 2c is bent and rotated.

[0013] In this way, by regulating the position of the component mounting tool 2 after rotation, the component 3 can be securely attached. It can actually be fixed, and positioning after rotation can be made easier.

[0014] Note that a convex portion is formed on the metal substrate 1, and an engagement recess that engages with the convex portion is formed on the position regulating portion 2c. Alternatively, these may be provided on the component mounting surface side. moreover Of course, these uneven portions may be formed in a complex manner.

[0015]

[Effect of the idea]

As mentioned above, in the component mounting device of the present invention, the resin material and molding conditions are Depending on the circumstances, even if the frictional force between the board and the resin member becomes small, the position of the resin member after rotation may be It is possible to position the parts and securely fix the parts.

[Brief explanation of drawings]

[Fig. 1] A perspective view of a component mounting device in an embodiment of the present invention.

[Fig. 2] Perspective view of a conventional component mounting device

[Explanation of symbols]

1 Metal substrate 1b recess 2 Parts attachment tool 2a Component fixing part 2b Engagement protrusion 2c Position regulation part 3 parts 3a long hole

Claims (1)

[Scope of utility model registration request] 1. A component mounting tool made of a resin material is passed through a through hole provided in a substrate, and the through hole is rotatably attached to the substrate while the substrate is held from both sides, and the component mounting tool is attached to the substrate in a rotatable manner. The attachment tool has a component fixing part that rotates together with the component attachment tool to be attached to one surface of the board and clamps the component between it and the surface of the substrate, At least one surface in contact with the substrate is formed with an engagement protrusion or an engagement recess that engages with a concave or convex portion formed on the substrate and restricts a rotational position of the component mounting tool. A parts mounting device characterized by: