JPH08255987A - Chassis support device and damper for support - Google Patents

Abstract

PURPOSE: To provide a chassis support device which can be assembled easily and is suitable for automation, and to provide a damper for support which can be molded easily. CONSTITUTION: The fine diameter part 2 of a damper 1 composed of elastic material is formed cylindrical, the fine diameter part is inserted into an insertion and passage hole 11 in a first chassis 10, a conical opening 4 is formed at the tip of the fine diameter part, a conical protrusion part 6 is formed on a bolt 9 for attachment, the bolt is screwed, the tip of the fine diameter part is spread out, and a flange part 15 is constituted. Thereby, when the fine diameter part of the damper is inserted into the mounting hole in the first chassis and the bolt is screwed, a chassis support device can be assembled. In addition, the damper can be molded easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting a chassis of electronic equipment or the like by using a damper and a supporting damper.

[0002]

2. Description of the Related Art Conventionally, a portable electronic device such as a tape recorder or a disk reproducing device has a structure in which a chassis having precision mechanical parts is supported by an external housing via a damper. For example, FIG. 3 shows an example thereof. In this conventional device, the damper 101 is made of an elastic material such as rubber, and has a disk-shaped collar portion 102 and a cylindrical neck portion 103.
In this structure, the curved O-shaped leg portions 104a and 104b are connected to each other and the through hole 105 is formed in the center. In this damper 101, the collar portion 102 is pushed into the insertion hole 107 provided in the first chassis 106 and the neck portion 103 is formed.
Is fitted into the insertion hole 107, the threaded portion 109 of the bolt 108 is inserted into the through hole 105 of the damper, and the tip thereof is screwed to the boss 111 provided on the second chassis 110, so that the first chassis and the second chassis. Between the legs 104a,
The first chassis is elastically supported by the second chassis with 104b interposed.

However, in this conventional apparatus, the collar portion of the damper having a diameter larger than that of the insertion hole provided in the first chassis has been pushed into the insertion hole having a small diameter, but this work has to be done manually. It was extremely difficult to work and required a lot of man-hours.

Further, since this damper has a neck portion having a diameter smaller than those between the collar portion and the leg portion, it has a drawback that the mold structure for molding becomes complicated.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to improve the structure of the chassis supporting device and the supporting damper, to improve the work efficiency at the time of assembly, and to provide a chassis supporting device suitable for automatic assembly. It is an object of the present invention to provide a supporting damper having a simple molding die structure.

[0006]

In order to solve such a problem, a chassis supporting device according to the invention of claim 1 connects a small diameter portion and a leg portion, and provides a through hole in the center to form a small diameter portion. A damper with a conical opening at the tip is made of elastic material, and a damper is made of an elastic material with through holes provided at the legs, a head with a conical convex portion at the lower end, and a screw part make up the bolt. Then, the small diameter part of the damper is inserted into the insertion hole provided in the first chassis, the boss provided in the second chassis is inserted into the through hole provided in the leg part, and the screw part of the bolt is provided at the tip of the boss. By mounting the damper in the mounting hole, the small diameter portion of the damper is expanded and the flange portion is formed.

A support damper according to a second aspect of the present invention is a support damper having a substantially cylindrical outer diameter, a leg portion having a diameter larger than that of the thin diameter portion, a conical opening provided at a tip of the small diameter portion, and a conical opening. The through hole communicated with is composed of an elastic material provided on the small diameter portion and the leg portion.

[0008]

According to the present invention, the small diameter portion of the damper is inserted into the insertion hole provided in the first chassis, the boss of the second chassis is inserted into the through hole of the damper, and the screw portion of the bolt is bossed. Install it on the part, tighten the screw, and spread the cone opening of the damper with the cone convex part of the bolt head to form the flange part and install it.

According to the second aspect of the invention, since the outer diameter of the small-diameter portion is substantially cylindrical, the mold structure can be simple during molding.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structures and effects of the chassis supporting device and the supporting damper of the present invention will be described in detail below with reference to FIGS.

FIG. 1 is a sectional view of a supporting damper and a chassis supporting device using the same according to the present invention. FIG. 1A is a state before tightening a bolt, and FIG. 1B is a state after tightening the bolt. Indicates. The supporting damper 1 has a thin outer diameter portion 2 having a cylindrical outer shape, a cylindrical leg portion 3 having a diameter larger than that of the thin outer diameter portion 2, and a thin outer diameter portion 2.
It is composed of a conical opening 4 provided at the tip of the and a through hole 5 communicating with the conical opening 4 in the small diameter portion 2 and the leg portion 3 made of an elastic material. The damper is used to form a chassis support device. That is, a bolt 9 having a head portion 7 having a conical convex portion 6 at the lower end and a screw portion 8 is prepared, and the small diameter portion 2 of the damper 1 is inserted into an insertion hole 11 provided in the first chassis 10,
By inserting the boss 13 provided in the second chassis 12 into the through hole 5 provided in the leg portion 3, attaching the threaded portion 8 of the bolt 9 to the attachment hole 14 provided at the tip of the boss 13, and tightening the bolt 9. The conical convex portion 6 of the bolt 9 spreads the conical opening 4 at the tip of the small diameter portion of the damper, and the bolt head 7 and the first chassis 1
The collar portion 15 is formed between 0. (See Fig. 2 (b))

The flange portion 15 which is formed by being pushed out serves as a retaining function, and at the same time, serves as a damper function against an impact in a direction of separating the first chassis from the second chassis. By tightening the bolt 9 to the boss 13, the damper 1
The leg portion 3 is fixed in a compressed state between the first chassis 10 and the second chassis 12, and a state in which the first chassis 10 is elastically attached to the second chassis 12 is realized.

When this chassis supporting device is applied to an electronic device or the like, it is desirable to use it at a plurality of positions for one chassis as shown in FIG. In the present embodiment, the leg portion 3 of the damper 1 has a cylindrical shape, but it is not limited to the cylindrical shape and may be a polygonal column. Further, the mounting hole 14 of the boss 13 may be pre-threaded or may be a simple hole for self-tapping. The threaded portion 8 of the bolt 9 may be a normal thread or a thread for self-tapping.

[0014]

As is apparent from the above description, in the chassis supporting device according to the present invention, the small diameter portion of the damper can be easily inserted into the insertion hole of the first chassis, and the bolts can be simply tightened to the second chassis. Since it can be easily assembled, the work is simplified, the man-hours can be significantly reduced, and it is also suitable for automatic assembly. Further, since the supporting damper of the present invention does not have the neck portion existing in the conventional damper, the structure of the molding die can be simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a supporting damper of the present invention and a chassis supporting device using the same, (a) showing a state before tightening a bolt and (b) showing a state after tightening the bolt.

FIG. 2 is a cross-sectional view of an example of electronic equipment to which the chassis support device of the present invention is applied.

FIG. 3 is a sectional view showing a conventional chassis supporting device and a supporting damper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Damper 2 Small diameter part 3 Leg part 4 Conical opening 5 Through hole 6 Conical convex part 7 Head part 8 Screw hole 9 Bolt 10 1st chassis 11 Insertion hole 12 2nd chassis 13 Boss 14 Mounting hole 15 Collar part 101 Damper 102 Tsuba Part 103 Neck part 104a, 104b Leg part 105 Through hole 106 First chassis 107 Insertion hole 108 Bolt 109 Screw part 110 Second chassis 111 Boss

Claims (2)

[Claims] 1. A damper comprising a small diameter portion and a leg portion connected to each other, a through hole provided at the center thereof, and a conical opening provided at the tip of the small diameter portion is made of an elastic material, and a conical convex portion is provided at the lower end. A bolt is formed by the head portion and the screw portion provided, the small diameter portion of the damper is inserted into the insertion hole provided in the first chassis, and the boss provided in the second chassis is inserted into the through hole provided in the leg portion. The chassis supporting device is formed so that the small diameter portion of the damper is expanded and the flange portion is formed by attaching the threaded portion of the bolt to the attachment hole provided at the tip of the boss. 2. A thin portion having a substantially cylindrical outer shape, a leg portion having a diameter larger than that of the thin portion, a conical opening provided at a tip of the thin portion, and a through hole communicating with the conical opening. A support damper made of elastic material on the small diameter part and legs.