JPH0143897Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to a cover mounting structure that is attached to the side surface of a housing.

(b) Background of the technology Some electronic and communication devices allow maintenance and inspection of internal components, units, etc. through windows provided on the side of the housing. Usually, this window is closed with a cover attached to protect the inside and make the outside look beautiful. An example of this type of device is shown in FIG.

FIG. 1 is a perspective view of the device to which the cover is attached, and a display panel 2 is attached to the upper part of the front side of the casing 1 to display the operating status of the device. Further, a table-like operation panel 4 is provided below the front side. A concave side plate 3 is installed between the display panel 2 and the operation panel 4 at a position recessed from the front surface of the display panel 2. A window 1a is provided in the recess side plate 3, and the printed board 5 attached to the housing 1 is configured to be inserted into and removed from the window 1a.

The front cover 6 covering the window 1a is required to have a front surface that is substantially flush with the surface of the display panel 2 and to give the device a good appearance.

(c) Prior Art and Problems Figure 2 shows a conventional cover mounting structure, with A being a sectional view and B being a detailed view of the dotted line frame M in A. Note that the same reference numerals indicate the same objects throughout the figures.

In the figure, a pair of support metal fittings 7 having L-shaped side surfaces are fixed at desired positions at both ends of the lower part of the recess side plate 3. A locking hole 71 is bored in the horizontal plate portion of each support fitting 7.

Reference numeral 6 denotes a box-shaped front cover with an opening whose depth is shallower than the level difference between the display panel 2 and the recessed side plate 3. The height of the front cover 6 when attached to the housing 1 is a desired height that allows it to be inserted between the display jaw 2a and the support fitting 7, and its width is approximately equal to the width of the housing 1. It is the width.

On the lower surface of the lower cover plate 61 of the front cover 6,
A pair of protrusions 62 are provided so as to be loosely inserted into each of the locking holes 71 from above. Front cover 6
Holes are provided in the vicinity of both ends of the upper part of the recess, corresponding to the screw holes in the side plate 3 of the recess, into which machine screws 9 are inserted. If the front cover is small, the machine screws 9 are inserted into the spacer tube 8 fixed inside the front cover 6 by lowering the front cover 6 almost vertically from above and inserting the protrusion 62 into the locking hole 71. It is adapted to be screwed onto the recess side plate 3.
The length of this spacer tube 8 is a desired length such that the front surface of the front cover 6 becomes almost the same plane as the surface of the display panel 2 when the end surface is in contact with the surface of the recess side plate 3. be.

Such a front cover 6 has a lower cover plate 61.
Place the bottom surface of the support bracket 7 on the top surface of the horizontal plate part,
After the protrusion 62 is fitted into the locking hole 71, the upper part is raised vertically and fixed to the recess side plate 3 with machine screws 9.

However, there must be a gap between the protrusion 62 and the locking hole 71 in the front and rear directions. This creates a large gap between the cover upper plate 6a and the display jaw 2a, which detracts from the aesthetic appearance of the device.
Furthermore, in order to reduce the gap between the cover upper plate 6a and the display jaw 2a, the gap between the protrusion 62 and the locking hole 71 in the front and back direction must be made sufficiently large. This causes a problem that the fixing position of the lower cover plate 61 portion of the front cover 6 becomes unstable.

(d) An object of the present invention is to provide a cover mounting structure that eliminates the above-mentioned conventional problems.

(e) Structure of the invention In order to achieve this objective, the present invention has a shallow box-shaped cover that is attached to the window provided in the side plate of the recess of the housing, which has a neck that is screwed onto the side plate of the recess. a spacing plate for necked screws fixed to the inside and upper part of the cover such that the screw is inserted from the front side and the tip end surface contacts the side plate of the recess; a spacer fitting fixed to the inner lower side of the recess, and a claw provided on the lower surface of the lower cover plate so as to be engaged with an engaging portion of a support fitting fixed to the side plate of the recess and supporting the lower surface of the lower cover plate. It has been established that

(f) Embodiments of the invention The invention will be described in detail below with reference to illustrated embodiments.

In FIG. 3, A is a cross-sectional view of an embodiment of the present invention, B is a cross-sectional view of the mounting process, and C is a perspective view of the support fitting.

In the figure, a pair of support metal fittings 16 having L-shaped side surfaces are fixed at desired positions on both ends of the lower part of the recess side plate 3. A sufficiently large rectangular locking hole 16a is bored in the horizontal plate portion of each support fitting 16.

Reference numeral 10 denotes a box-shaped front cover with an opening whose depth is sufficiently shallower than the level difference between the display panel 2 and the recessed side plate 3. The height of the front cover 10 when attached to the casing 1 is a desired height that allows it to be inserted between the display jaw 2a and the support fitting 7, and its width is approximately the same as that of the casing 1.
The width is equal to the width of .

A pair of spacing plates 14 for necked screws made of metal plates formed into a substantially hat shape are arranged so that the leg seats are in close contact with the inner surface of the front cover 10 and the tip end surface of the head is in contact with the concave side plate 3. It is fixed near both upper ends of the inside. A hole through which the necked screw 15 loosely passes is bored in the head of the necked screw spacing plate 14, and the threaded portion of the necked screw 15 passes through the front cover 10 in a spiral manner corresponding to this hole. A screw hole is provided in which the neck engages.

The tip of the lower cover plate 11 corresponding to the locking hole 16a of each support fitting 16 is bent downward to form a claw 12 that abuts and locks the front end surface of the locking hole 16a. There is. The spacer fittings 13 whose side surfaces are approximately channel-shaped are connected to each claw 1.
2, place the side plate 3 with a concave tip on the desired position.
Alternatively, it is fixed inside the front cover 10 so as to abut against the vertical plate portion of the support metal fitting 16 (in the figure, the vertical plate portion of the support metal fitting 16).

The lengths of the spacing plate 14 for necked screws and the spacing metal fitting 13 are such that the respective tip surfaces are in contact with the surface of the recess side plate 3 or the vertical plate portion of the support metal fitting 16.
The desired length is such that the front surface of the front cover 10 is substantially flush with the surface of the display panel 2.

Such a front cover 10 has a lower cover plate 1.
1 is placed on the upper surface of the horizontal plate portion of the support metal fitting 16, the claw 12 is inserted into the locking hole 16a, and the upper part is raised to a nearly vertical state, the lower part moves toward you and the claw 12 contacts and locks the front end surface of the locking hole 16a. In this state, spacer plate 1 for neck screw
4 and the distal end surfaces of the spacer fittings 13 abut against the vertical surfaces of the recess side plate 3 or the support fittings 16. After that, when the neck screw 15 is screwed in, the cover lower plate 11 is supported by the support fitting 16, and the claw 12 is inserted into the locking hole 16a.
It does not engage and move, and the upper part has a neck screw 15.
Since it is fixed with , it can be reliably fixed to the recess side plate 3.

The claw 12 is sufficiently thinner than the locking hole 16a, and the front cover 10 is shallow and the depth of the upper cover plate 10a is short, so even if the front cover 10 is tilted when attaching or detaching the front cover 10. , the cover upper plate 10a does not collide with the display jaw 2a. That is, the gap between the cover upper plate 10a and the display jaw 2a can be made sufficiently small.

(g) Effects of the invention As explained above, the present invention is a cover mounting structure that not only has a simple structure and is easy to attach and detach, but also has excellent practical effects such as a beautiful appearance when attached. It is.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the device for attaching the cover;
The figures show a conventional cover mounting structure, A is a sectional view, B is a detailed view of the dotted line frame M portion in A, FIG. 3 is an embodiment of the present invention, A is a sectional view, and B is a sectional view of the installation process.
FIG. 3C is a perspective view of the support fitting. In the figure, 1 is the housing, 1a is the window, 2 is the display panel, 3 is the concave side plate, 4 is the operation panel, 10 is the front cover, 7,
16 is a support metal fitting, 61, 11 is a cover lower side plate, 1
2 is a pawl, 13 is a spacer, 14 is a spacing plate for necked screws, and 15 is a necked screw.

Claims (1)

[Scope of utility model registration request] A shallow box-shaped cover that is attached to the window provided in the side plate of the recess of the housing.The head screw that screws into the side plate of the recess is inserted from the front side, and the tip end comes into contact with the side plate of the recess. a spacing plate for the necked screw fixed to the upper part of the interior, a spacer fitting fixed to the lower part of the interior so that its tip end abuts the side plate of the recess, and a lower surface of the lower cover plate fixed to the side plate of the recess. 1. A cover mounting structure comprising a claw provided on the lower surface of the cover lower plate so as to be engaged with an engaging portion of a support fitting supporting the cover.