JPH08186048A - Fixing band for electronic device and fixing structure thereof - Google Patents

Abstract

PURPOSE: To secure a band body firmly to an electronic device by providing a pair of lugs having surfaces inclining against the axial direction of a fixing screw while facing each other and converting the tightening force of the fixing screw into the force for fastening the band body through the sliding caused by the tightening of the fixing screw. CONSTITUTION: A pair of first lugs 16, 18 are formed oppositely each other at the upper fringe of a projecting part 6 and on the underside of a projecting part 8. Second lugs 26, 28 having inclining faces are formed within the interval of the lugs 16, 18, i.e., on the inside of the projecting parts 6, 8. When a fixing screw 20 is driven, a tightening force of the fixing screw and a nut 40 acts between the projecting parts 6, 8 to bring the lugs 26, 28 having inclining faces into contact. When the fixing screw 20 is driven further, a slip takes place between the lugs 26, 28. Tightening force of the fixing screw 20 is converted through abrasion caused by the slip between the lugs 26, 28 into fastening force of a band body 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting band for an electronic component used for mounting an electronic component such as a capacitor having a cylindrical shape, and a mounting structure thereof.

[0002]

2. Description of the Related Art Conventionally, a mounting band has been used to mount a cylindrical capacitor on a circuit board or a chassis of electronic equipment.
A band as disclosed in No. 77927 "Capacitor mounting band and capacitor fixing structure" is used. Such attachment by a band is formed on the main body of the band by wrapping the main body of the capacitor around the body of the capacitor and tightening a fixing screw to a tightening portion formed at the end of the body to integrate the band and the capacitor. Secure the legs to the circuit board or chassis with screws.

[0003]

By the way, in the case of such a band, a fixing screw is used for fastening to the capacitor, and the fixing position can be adjusted by arbitrarily operating the fixing screw. It has the advantage of being used more frequently than before.

However, in the capacitor fixing structure disclosed in Japanese Utility Model Laid-Open No. 5-77927, the tightening portion is inclined with respect to the central axis of the capacitor, and the fixing screw is inclined. It is necessary to insert the screwdriver into the through hole and incline the screwdriver to the fixing screw and tighten it. Mounting a fixing screw or operating a screwdriver on such an inclined tightening part is not a problem in the case of mounting a single capacitor, but in the case of mounting a plurality of capacitors adjacent to each other in an upright state, they are adjacent to each other. However, the capacitor prevents the driver from being inserted into the fixing screw, and the mounting order is restricted. For example, in a power supply device in which a plurality of capacitors are installed, it is difficult to remove adjacent capacitors when replacing one of the capacitors. Such a thing also occurs at the time of adjustment at the time of assembling the parts.

Therefore, it is a first object of the present invention to provide a band for mounting an electronic component, which enables mounting operation of the electronic component in a direction orthogonal to the band.

A second object of the present invention is to provide a mounting structure for electronic parts using the above-mentioned mounting band.

In order to achieve the first object, the attachment band of the electronic component of the present invention has a band body (4) wound around the electronic component (capacitor 2), as illustrated in FIG.
A pair of first projecting pieces (16, 18) projecting and opposed to the widthwise edges of both ends of the band body, and a through hole formed in the first projecting pieces, at least one of which is a long hole. A fixing screw (20) penetrating (22, 24) and tightening between the first projecting pieces, and an axial direction of the fixing screw projecting to an edge portion formed in a space between the first projecting pieces. A pair of second projecting pieces that face each other in an inclined surface with respect to each other and that convert the tightening force of the fixing screw into the binding force of the band body with respect to the electronic component by sliding caused by tightening of the fixing screw. (26, 28) and are provided.

The electronic component mounting structure of the present invention is
In order to achieve the second object, as illustrated in FIG. 5, the first protrusion and the second protrusion are provided in the space portion (52) formed by the peripheral wall portions of the electronic components that are mounted adjacent to each other. It is characterized by installing pieces.

[0009]

The mounting band main body is mounted on the electronic component in a circling state, and is located within a space between the pair of first projecting pieces projecting from the edge portion in the width direction on the end side thereof. A fixing screw is passed through the second projecting piece forming the inclined surface and tightened. This tightening force acts in the direction of narrowing the interval between the first protrusions. As a result, the second projecting piece forming the inclined surface comes into contact with the opposite surface side, and the tightening force of the fixing screw acts between the contact surfaces in the pressure contact direction. Therefore, the tightening force acting between the second protrusions causes slipping between the inclined surfaces, and the tightening force of the fixing screw is eventually converted into the binding force of the band body. As a result, the band body is firmly fixed to the electronic component.

The first and second projecting pieces project in the diametrical direction of the circumferential surface formed by the band body, and the fixing screw penetrating the first and second projecting pieces is the center of the electronic component to be mounted. It matches the axial direction. Therefore, when a plurality of electronic components are installed and fixed together, for example, in the case of a cylindrical electronic component, the first and second protrusions are provided in the space formed by the arc surface between the adjacent electronic components. Can be arranged, and the operation of the fixing screw can be performed by inserting a driver into the space so as to match the axial direction of the electronic component,
It can be easily attached and detached with appropriate force.

[0011]

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

1 and 2 show an embodiment of a mounting band for electronic parts according to the present invention. This mounting band is integrally formed of a flexible material such as metal or synthetic resin. For example, since the mounting band is lapped around the body of the capacitor 2 (FIG. 2) as an electronic component to be mounted, the mounting band has a strip shape. The band main body 4 is provided. This band body 4
It has a length and a width corresponding to the size of the electronic component.

The length of the band body 4 is such that at least one turn of the electronic component is made to circulate, and the pair of protrusions 6, so that the ends thereof engage with each other in the width direction,
8 and notches 10 and 12 are formed. That is, the protrusions 6 and 8 and the notches 10 and 12 are similar to each other, and the gap 14 necessary for tightening is formed. In this embodiment, the widths of the extreme ends of the protrusions 6 and 8 are formed to be larger than the widths of the edges of the notches 10 and 12.

A pair of first projecting pieces 16 and 18 facing each other are formed on the upper edge of the projecting portion 6 and on the lower side of the projecting portion 8. Each of the protruding pieces 16 and 18 has an arc shape forming a part of a concentric circle corresponding to the curvature of the band body 4, and constitutes parallel surfaces facing each other. In the case of this embodiment, one projecting piece 16 has a through hole 22 which is an elongated hole for allowing the fixing screw 20 to pass therethrough, and the other projecting piece 18 has a through hole 24 which is a circular hole which penetrates the fixing screw 20. Are formed.

Further, within the space between the protrusions 16 and 18, that is, inside the protrusions 6 and 8, the second protrusion 2 forming an inclined surface is formed.
6, 28 are formed. The projecting piece 26 is formed with a through hole 32 that is a long hole corresponding to the through hole 22 on the projecting piece 16 side, and the projecting piece 28 is formed with a circular hole corresponding to the through hole 24 of the projecting piece 18. A through hole 34 is formed. Although these projecting pieces 26 and 28 are formed with a slight interval, they can be brought into close contact with each other due to the elasticity of the band body 4.

The fixing screw 20 is inserted from above into the through holes 22, 24, 32, and 34 of the projecting pieces 16, 18, 26, and 28, and the screw portion 36 projecting toward the projecting piece 18 is provided with a washer 38. Nut 40 is attached.

Then, on the lower edge of the band body 4, leg portions 42 are formed at positions spaced apart in the diametrical direction.
A seat portion 44 is formed in the seat portion 44, and a mounting hole 46 for fixing to a mounting member such as a chassis of an electronic device or a circuit board is formed in the seat portion 44 by a fixing screw (not shown).

The mounting of such a mounting band will be described. As shown in FIG. 3, as an electronic component, for example, the band body 4 is fitted to the body of the capacitor 2 and the bottom surface of the capacitor 2 is aligned with the lower surface side of the seating portion 44. In this case, the fixing screw 20 is previously penetrated through the protruding pieces 16, 18, 26, 28, and the washer 38 and the nut 40 are temporarily tightened on the thread portion 36.

In this state, when the fixing screw 20 is operated by a driver (not shown) as shown by an arrow N, the protruding piece 1
Tightening forces fm and fm (fm = fn) by the fixing screw 20 and the nut 40, that is, a compressive force acts between 6 and 18. At this time, the protrusions 26 and 28 forming the inclined surface are in contact with each other. Further, when the fixing screw 20 is tightened, the through holes 22 and 32 have a clearance with respect to the fixing screw 20, so that the tightening forces fm and fn are the same as the protruding pieces 26 and 28.
A slip is caused between them, and the stress caused by the slip is fa, fb.
Act in opposite directions as. These stresses fa, f
b is generated in the angular direction of the inclined surfaces of the protrusions 26 and 28, and when the horizontal component force of the stress fa is fc and the horizontal component force of the stress fb is fd, these component forces fc and fd are in opposite directions, It acts in the direction in which the main body 4 is tightly bound, that is, in the horizontal direction. F represents a binding force acting on the band body 4, and as a result, the orbital diameter of the band body 4 is reduced,
Is firmly attached to the capacitor 2. In this case, the binding force of the band body 4 to the capacitor 2 is the fixing screw 2
It is proportional to the tightening forces fm and fn of 0.

FIG. 4 shows such a tightening force fm,
fn, stresses fa and fb, and horizontal component forces fc and fd thereof are shown, and the tightening forces fm and fn of the fixing screw 20 are the protrusions 2.
The friction caused by the sliding of 6, 28 is converted into the binding force F of the band body 4. In this case, the magnitude of the arrow shown in FIG. 4 shows how the tightening forces fm and fn are converted into the binding force F, and the length of the arrow does not show the magnitude of the force. Absent.

Next, FIG. 5 shows an embodiment of a mounting structure for electronic parts. In the case of the cylindrical condenser 2, the operating direction of the fixing screw 20 of the band body 4 attached to the condenser 2 is located in the central axis direction thereof. For this reason, as shown in FIG.
When A, 2B, 2C and the like are fixed to the fixing member 48 with the fixing screw 50, the projecting pieces 16, 18, 26, 28 can be positioned and mounted in the space 52 formed by the peripheral wall surfaces of the capacitors 2A, 2B. In that case, the operation of the fixing screw 20 can be easily attached or detached by a driver from a direction orthogonal to the fixing member 48 as shown by an arrow M.

The following modifications can be considered in the mounting band of the electronic component of the present invention. a. Although the second protrusions 26 and 28 have a pair, they may have a plurality of pairs. b. The through holes 22, 24, 32, and 34 formed in the first and second projecting pieces 16, 18, 26, and 28 are long holes on one side and circular holes on the other side, but both are long holes. May be. The reason why the long holes are used is to allow the displacement of the band body 4 when tightening, and all the through holes 22, 24, 3,
This is because even if the holes 2 and 34 are elongated holes, the band body 4 can be similarly displaced when the band body 4 is bound. c. The through hole on the side of the protruding piece 18 may be a screw hole, and the screw portion 36 of the fixing screw 20 may be screwed. In that case, the nut 40 becomes unnecessary, and the nut 40 is used in a narrow space.
There is an advantage that there is no trouble of holding. d. The second projecting pieces 26, 28 may be installed at a position where the fixing screw does not penetrate within the space between the first projecting pieces 16, 18.

[0023]

As described above, according to the present invention,
The following effects are obtained. a. According to the attachment band of the electronic component, the tightening force of the fixing screw can be efficiently converted into the binding force of the band body, and the attachment band can be firmly attached to the electronic component such as the capacitor. b. According to the electronic component mounting structure, since the operating direction of the fixing screw is aligned with the axial direction of the electronic component such as the capacitor, a plurality of electronic components are installed side by side, and the protruding portion is provided in the space formed by the peripheral wall portion. Even when installed, each electronic component can be easily attached or detached.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a mounting band for an electronic component of the present invention.

FIG. 2 is a front view showing a state before binding of the mounting band.

FIG. 3 is a view showing a tightly bound state of the mounting band.

FIG. 4 is a view showing a tightly bound state of a mounting band by tightening a fixing screw.

FIG. 5 is a perspective view showing a mounting structure for an electronic component of the present invention.

[Explanation of symbols]

 2 Capacitor (electronic component) 4 Band main body 16, 18 First protrusion piece 20 Fixing screw 22, 24 Through hole 26, 28 Second protrusion piece 32, 34 Through hole 52 Space part

Claims (2)

[Claims] 1. A band main body to be wound around an electronic component, a pair of first projecting pieces projecting and opposed to widthwise edges of both ends of the band main body, and formed on these first projecting pieces. , A fixing screw that penetrates through a through hole at least one of which is a long hole to tighten the space between the first projecting pieces, and a fixing screw that projects to an edge portion formed in a space between the first projecting pieces. A pair of second members that face each other with respect to the axial direction and that convert the tightening force of the fixing screw into the binding force of the band body with respect to the electronic component by sliding caused by tightening the fixing screw. A mounting band for an electronic component, which is provided with a protrusion. 2. A mounting structure for electronic parts, characterized in that a first projecting piece and a second projecting piece are installed in a space formed between peripheral wall parts of electronic parts mounted adjacent to each other. .