JPH08153980A - Equipment chassis - Google Patents

Abstract

PURPOSE: To make the maintenance and inspection work of an equipment chassis simpler and inexpensive and, at the same time, to keep the parts removed at the time of maintaining and inspecting the chassis in a narrow space. CONSTITUTION: Such a chassis 5 that can cover the upper and lower sections and right and left side sections of a frame 7 is constituted of a first panel 9 having side plates 9b and 9c which can be attached to and detached from an equipment mounting rack and second panel 10 which becomes the upper surface section of the chassis 5. Since the maintenance and inspection of the inside of equipment can be performed by only removing the second panel 10 from the rack, the number of the parts removed from the equipment at the time of maintaining and inspecting the equipment can be reduced. When the panel 10 is removed at the time of maintaining or inspecting the inside of the equipment, the removed parts becomes relatively small. In addition, the number of the removed parts can be reduced, because the chassis 5 is constituted of the two parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device chassis suitable for use in a magnetic recording / reproducing apparatus such as a video tape recorder.

[0002]

2. Description of the Related Art Recently, video tape recorders (hereinafter referred to as
It is called "VTR". The magnetic recording / reproducing apparatus such as), etc. has been remarkably popularized, and the VTR has become familiar with it.

Conventionally, a magnetic recording / reproducing apparatus of this type is one in which the left and right side portions of the rack are detachably provided via mounting arms and provided with a housing containing a printed circuit board, a tape running system and the like. Has been adopted.

This housing is provided with a frame that opens in the up-down direction and the front-rear direction, two front and rear panels that are attached to both front and rear openings of the frame and face each other, and a rear panel of the front panel of the both panels. The chassis is provided and attached to the side of the rear panel, and includes a chassis having upper and lower surface portions and left and right side portions that cover the upper and lower portions and the left and right side portions of the frame.

In the magnetic recording / reproducing apparatus having the housing constructed as described above, in order to maintain and inspect the printed circuit board, the tape running system, etc., a part of the chassis is detached from the frame and the upper opening of the housing is opened. This is done by exposing the part to the outside.

By the way, the chassis in this type of magnetic recording / reproducing apparatus is one in which the upper and lower surface portions and the left and right side surface portions are all formed separately, or the ceiling plate and the lower surface portion which are the upper surface portion and the left and right side surface portions. Some are composed of a bottom plate.

[0007]

However, in the former case, since the chassis is composed of four elements, there is a problem that the number of constituent parts is increased and the cost is increased.

On the other hand, in the latter case, since the upper surface portion and the left and right side surface portions of the chassis are integrated, it is necessary to attach and detach the frame and the chassis to and from the VTR mounting rack at the time of maintenance and inspection in the VTR. It was

As a result, there has been a problem that the number of parts to be detached and attached during the maintenance / inspection of the VTR is increased, which complicates the maintenance / inspection work.

In addition, during maintenance / inspection of the VTR, it is necessary to detach the elements with side portions of the chassis from the rack and frame, so that the detachable parts become relatively large constituent parts, which makes it difficult to perform maintenance / inspection. There was also the problem that the detached parts management space would become large.

The present invention has been made in view of the above circumstances, and it is possible to reduce the cost and simplify the maintenance / inspection work in the equipment, and at the same time, remove parts at the time of maintenance / inspection in the equipment. The object is to provide a device chassis that can be managed in a small space.

[0012]

The equipment chassis according to the present invention has upper and lower surface portions and left and right side portions which cover the lower portion of the equipment frame and the left and right side portions of the frame including the upper opening of the equipment frame. Is an exterior member that is attachable to and detachable from a rack for mounting equipment,
A first panel including a lower surface portion and left and right side surfaces, and a first panel
The second panel is provided above the panel and includes the upper surface portion.

[0013]

In the present invention, the second panel is attached / detached while the first panel is attached to the equipment mounting rack to perform maintenance / inspection in the equipment.

[0014]

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

1 and 2 are an exploded perspective view and an assembled perspective view showing an example of use of an equipment chassis according to the present invention.

In the figure, reference numeral 1 indicates a VTR.
2 is a device casing for use in the vertical and front-back directions, a front panel 3 having operation switches 3a and a cassette insertion / ejection opening 3b attached to the front opening of the frame 2, and a rear panel of the front panel 3. And a rear panel 4 mounted on the rear opening of the frame 2 and having a connector (not shown) for external connection.
And a chassis 5 as an exterior member which is provided on the side of the rear panel 4 and is attached to the rear of the front panel 3 so as to cover the upper and lower portions and the left and right side portions of the frame 2.

Two left and right side walls 6 and 7 facing each other are integrally provided on both sides of the frame 2 of the device housing 1, and the side walls 6 and 7 are opened on the front and back surfaces of the frame to be mounted. Screw holes 6a and 7a into which the screw a is screwed are provided.

Further, the frame 2 in the equipment housing 1
Two mounting pieces 8 (only the upper right mounting piece is shown in the figure) are provided integrally with each other at the upper and lower end edges of the rear part of the rear side of the mounting piece 8 in parallel with each other at a predetermined interval in the left-right direction.
Is provided with a screw hole 8a into which the mounting screws b and c are screwed.

Further, at the lower end of the front part of the frame 2 in the equipment casing 1, two mounting pieces (not shown) are provided integrally, which are arranged in parallel with each other in the left-right direction at a predetermined interval. Each mounting piece (not shown) is provided with a screw hole (not shown) into which the mounting screw c is screwed.

The chassis 5 of the equipment casing 1 is
A bottom plate (lower surface part) 9a and left and right side plates (left and right side parts) 9b for covering the lower part and left and right side parts of the frame 2, respectively.
A first panel 9 having a substantially U-shaped cross section and a step portion 10a provided above the first panel 9 and facing the inside of the front panel 3 and covering an upper portion (upper opening portion) of the frame 2 is formed. The second panel 10 having a substantially flat plate shape as such a ceiling plate (upper surface portion).

The first of the chassis 5 in this equipment housing 1
Panel mounting portions 9B and 9C facing the bottom plate 9a are integrally bent at the upper edges of the side plates 9b and 9c, and the panel 9 is opened at both front and rear edges of the bottom plate 9a. A screw insertion hole 11 (only the front screw insertion hole is shown) through which the mounting screw c is inserted is provided.

Further, the side plates 9b of the first panel 9 are
9c is formed with recesses 12 and 13 extending in the front-rear direction by projecting a part of the panel inward of the panel, and the mounting screws a are inserted into the recesses 12 and 13 to open inside and outside thereof. Screw insertion holes 14 and 15 are provided.

On the other hand, the second panel 10 of the chassis 5 in the equipment housing 1 is integrally formed with edge portions 10b and 10c which are in contact with the panel mounting portions 9B and 9C at both side edges. A screw insertion hole 10d which is opened at the rear edge and through which the mounting screw b is inserted is provided.

Reference numeral 16 denotes a mother board on the connected side, which is composed of a single printed circuit board and is housed in the equipment housing 1.

Reference numeral 17 is a sub board on the connection side, which is composed of a large number of printed boards arranged in parallel in the front-rear direction at a predetermined interval.
It is mounted on the motherboard 9 via a connector (not shown).

Reference numeral 18 denotes a head drum that rotates at a high speed by driving a motor (not shown). The head drum 18 is provided in front of the mother board 16 and the child board 17 and has a mechanical deck (not shown) in the equipment casing 1. It is stored through.

Numerals 19 and 20 are a pair of mounting arms, a part of which faces the insides of the recesses 12 and 13, respectively. The mounting arms are mounted on a rack (not shown) for VTR mounting, and the mounting screws are attached to the respective tip portions. screw insertion holes 19a, 2 through which a is inserted
0a is provided.

Then, both these mounting arms 19, 20
Is configured so that the frame 2 and the chassis 5 can be attached to and detached from the rack (not shown).

In the VTR having the equipment chassis constructed as described above, the second panel 10 of the chassis 5 is detached from the frame 2 of the equipment housing 1 in order to maintain and inspect the printed circuit board, the tape running system and the like. By doing.

That is, maintenance / inspection in the VTR is performed with the frame 2 and the first panel 9 attached to the mounting arms 19 and 20.

Therefore, in this embodiment, the VTR
Since it is not necessary to attach / detach the entire frame 2 and chassis 5 to / from the rack (mounting arms 19 and 20) at the time of maintenance / inspection, the number of attachable / detachable parts can be reduced.

Further, in the present embodiment, when the second panel 10 is detached at the time of maintenance / inspection in the VTR, the detachable component is a relatively small component.

Further, in this embodiment, the chassis 5
The number of constituent parts can be reduced because the constituent parts of 2 are two elements.

In the present embodiment, an example applied to a VTR is shown, but the present invention is not limited to this, and other electronic equipment including various magnetic recording / reproducing devices and information processing devices. The same can be applied to the embodiment.

Of course, the materials and shapes of the frame and chassis in the present invention are not particularly limited.

[0036]

As described above, according to the present invention, the upper and lower surface portions and the left and right side portions are provided so as to cover the lower portion of the frame and the left and right side portions of the frame including the upper opening portion of the equipment frame. An exterior member detachable from a rack for mounting equipment, the exterior member including a first panel including a lower surface portion and left and right side surfaces, and a second panel provided above the first panel and including an upper surface portion. Since the first panel is attached to the rack, only the second panel is attached / detached to perform maintenance / inspection in the equipment.

Therefore, it is not necessary to attach / detach the entire equipment frame and chassis to / from the equipment mounting rack during maintenance / inspection of the equipment, so that the number of detachable parts can be reduced, and maintenance / inspection can be performed. The inspection work can be simplified.

Further, by detaching the second panel during maintenance / inspection of the equipment, the detachable parts are relatively small components, so that the space for managing the detached parts during maintenance / inspection can be made small. .

Further, since the chassis is composed of two elements, the number of constituent parts can be reduced and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a usage example of a device chassis according to the present invention.

FIG. 2 is an assembled perspective view showing a usage example of the device chassis of the present invention.

[Explanation of reference numerals] 1 ... Equipment housing 2 ... Frame 3 ... Front panel 4 ... Rear panel 5 ... Chassis 6, 7 ... Side wall 9 ... First panel 9a ... Bottom plate 9b, 9c ... Side plate 10 ... Second panel

Claims (1)

[Claims] 1. An exterior having upper and lower surface portions and left and right side portions for covering the lower portion of the frame and left and right side portions of the frame including an upper opening portion of the equipment frame, of which left and right side portions are detachable from a rack for mounting equipment. A member, wherein the exterior member is configured by a first panel including the lower surface portion and the left and right side surface portions, and a second panel provided above the first panel and including the upper surface portion. Equipment chassis to be used.