JPH0439535Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a fixing groove of a mounting member that can be applied when fixing a mounting member assembled to a display device or instrument device of a vehicle, a ship, etc. to a base member side. It is related to construction.

[Conventional technology]

In general, a display body in which a display part using a liquid crystal element, a fluorescent display tube, etc. is installed is used as a housing for a display device or an instrument device, a dial panel, or a dial board that serves as a reference member when installing the display body. As a structure for fixing to the base member side, there is a structure shown in FIG. 4, which is used in a liquid crystal display device.

First, as the display main body 1,
Publication No. 90983, Publication No. 58-113016, Publication No. 56-47565
A liquid crystal element 3 is disposed on the front surface of a light guide 2 for a surface light source made of a light guide resin material, and a reflection plate 4 is disposed on the rear surface of the light guide 2. Then, the liquid crystal element 3, the light guide 2, and the reflection plate 4 are positioned and stacked in a box-shaped holder 5 having an opening 5a, and at this time, the conductive rubber 6 is also placed on the electrode part of the liquid crystal element 3. The holder 5 is fixed with screws 8 to a circuit board 7 constituting a drive circuit for applying a signal voltage to the liquid crystal element 3 via a conductive rubber 6.

Liquid crystal display devices having the above-mentioned display main body 1 as a component are disclosed in Japanese Utility Model Application No. 59-187188 and Japanese Utility Model Application Publication No. 60.
This is disclosed in Japanese Patent Publication No. 59915, and mounting legs 10 are integrally mounted vertically upward from the bottom surface of the housing 9, which is a box-shaped base member that opens on the front side.
is provided protrudingly, and a mounting hole 11 is formed perpendicularly downward to the upper surface on the upper surface perpendicular to the extending direction of the mounting leg 10, and the circuit board 7 of the display main body 1 which is the mounting member is The circuit board 7 is abutted, and the circuit board 7 has a hole 7 passing through the top and bottom for screw tightening.
a is bored, and the screw 12 is inserted into the hole 7a, and the circuit board 7 is fixed to the mounting leg 10 by being tightened into the mounting hole 11, so that the display part of the display main body 1 can be viewed from the front. The facing plate 13, which has an opening 13a so that the housing 9
A transparent glass plate 14 is placed in contact with the upper surface of the outer peripheral end of the facing plate 13, and the glass plate 14 and the housing 8 are fixed with screws 15.

By the way, when a plurality of display main bodies 1 are arranged inside the housing 9, when this display main body 1 is arranged, when this display device is visually recognized from the outside, the display device located far away from the visible position Even for the main body 1, a structure has been proposed in which the display main body 1 is tilted and fixed so that it can be more easily seen from the same viewing position. A mounting hole 11 is formed perpendicular to the mounting leg 10, and the circuit board 7 of the display main body 1 is brought into contact with the inclined surface of the mounting leg 10 and fixed with screws 12.

[Problem that the invention attempts to solve]

However, in the conventional mounting member fixing structure, the mounting holes 11 of the mounting legs 10 of the housing 9
When molding with a metal mold, it is difficult to remove the mold, resulting in large costs, and depending on the shape, molding may not be possible.

It is also conceivable to form the mounting hole 11 by post-processing, but in this case, very complicated work will be required.

Further, in order to facilitate molding of the housing 9, the upper surface of the mounting leg 10 is made into an inclined surface. It is also conceivable to form it downward from.

However, in the housing 9 in this case,
The circuit board 7 of the display main body 1 is mounted on the inclined surface of the mounting leg 10.
When the circuit board 7 is brought into contact with the screws 12 and fixed with the screws 12, the tightening stress of the screws 12 is reduced because the plane direction of the circuit board 7, that is, the direction of the slope of the mounting leg 10, and the tightening direction of the screws 12 are not perpendicular. It is difficult to set the stress to a constant level, which may damage the circuit board 7, and the screws 12 may remain lifted, making it easy for incomplete installation to occur. was.

[Purpose of invention]

This invention was devised by focusing on the problems of the conventional example, and is advantageous for molding the base member even when the mounting member is fixed to the slanted fixing location of the base member. Moreover, it is an object of the present invention to provide a fixing structure for a mounting member that can securely fix the mounting member to a base member.

[Summary of the idea]

In order to achieve the above object, this invention has a base member that forms a fixing part that is inclined with respect to the horizontal direction perpendicular to the tightening direction of the fixing means, and a flat plate part whose lower surface abuts at least the fixing part. In the fixing structure of the mounting member, the mounting member is provided with a hole penetrating the flat plate part in the vertical direction, and the mounting member is fixed to the fixing location by the fixing means inserted through the hole, A through hole is formed, and at least a lower surface thereof is formed in an inclined surface inclined with respect to a horizontal direction perpendicular to the direction in which the through hole extends, and a convex or concave locking portion is formed on the inclined surface. A washer and a concave or convex engaging portion that engages with the locking portion are provided around the hole of the mounting member.

[Effect of invention]

In this invention, the flat plate part of the mounting member is brought into contact with the inclined fixed location of the base member, and the lower surface of the washer is brought into contact with the upper surface of this flat plate part, and the locking part of the washer is engaged with the mounting member. By engaging with the portion, the upper surface of the washer extends in a horizontal direction perpendicular to the tightening direction of the fixing means, and the washer becomes difficult to move during the tightening operation of the fixing means.

〔Example〕

Figures 1 and 2 show a fixing structure of a mounting member in which an embodiment of this invention is applied to a liquid crystal display device, and parts that are the same as or equivalent to the conventional example shown in Figure 4 are given the same reference numerals. I will omit the detailed explanation.

The housing 9, which is a base member, has a box shape and stores the display main body 1 and the instrument main body 1A therein, and has mounting legs 10 protruding from a plurality of locations.
The upper surface of the mounting leg 10 is formed with an inclined surface 10a that is inclined with respect to the horizontal direction perpendicular to the tightening direction of the screw 12 so that the mounting member is inclined at a predetermined angle. The mounting hole 11 is provided along the extending direction, that is, the vertical direction that is the tightening direction of the screw 12. Two mounting legs 10 with mounting holes 11 are provided as shown in FIG. 2, and positioning pins 16 are integrally provided on the other two mounting legs 10 from the inclined surface 10a. This makes it easier to fix the mounting member, and the positions and number of the mounting holes 11 and pins 16 may be determined arbitrarily.

Further, the washer 17 made of a synthetic resin material has a cylindrical shape, and has a horizontal surface 17a on the upper surface and an inclined surface 17b on the lower surface, and has a through hole 17c formed from the horizontal surface 17a to the inclined surface 17b. A convex portion 17d is integrally provided on the inclined surface 17b.

That is, the display main body 1, which is a mounting member, has a liquid crystal element 3, a light guide 2, and a reflection plate 4 arranged in a laminated manner, and is mounted in a holder 5 so as to apply a signal voltage to the liquid crystal element 3 via a conductive rubber 6. Screw 8 to circuit board 7
The pin 16 of the mounting leg 10 is inserted into the hole 7a drilled in the circuit board 7, and the lower surface of the circuit board 6 is fixed to the mounting leg 10.
The hole 7 of the circuit board 7 contacts the slope 10a of the circuit board 7.
A concave portion 7b serving as an engaging portion is provided at the periphery of the washer 17, and the washer 17 inserts the convex portion 17d into the concave portion 7b and abuts the inclined surface 17b against the upper surface of the circuit board 7. From said washer 1
7 through the through hole 17c and the hole 7a of the circuit board 7 and tightened into the mounting hole 11 of the mounting leg 10,
It is fixed to the housing 9 at a predetermined angle. and,
The meter body 1A is housed inside the housing 9 and fixed with screws 18, and the dial 1 of the meter body 1A is
The display portion of the display main body 1 can be viewed from above through the opening 1b formed in the opening 1b. A facing plate 13 is provided in the open part of the housing 9.
A transparent cover 19 holds the outer peripheral edge of the facing plate 13 between it and the housing 9, and is fixed to the housing 9 with screws 15.

Therefore, the display main body 1 is attached to the inclined surface 1 of the mounting leg 10.
When fixing to 0a, screw 1 is fixed with washer 17.
2, the screw 12 and the horizontal surface 17a of the washer 17 can be brought into good contact with each other, so the tightening stress is more likely to be constant compared to the conventional fixing structure, and the display body 1 and The housing 9 can be securely fixed, and the housing 9 can be molded at low cost without requiring complicated work. Also, washer 17
Since the convex portion 17d is inserted into the concave portion 7b of the circuit board 7, the screw 12 is not tightened when the screw 12 is tightened.
2 can be prevented from coming into contact with the inner circumferential surface of the through hole 17c and rotating with the screw 12, and by inserting the protrusion 17d into the recess 7b during assembly work, the inclined surface 17b can be prevented from being attached. Inclined surface 1 of leg 10
Since the mounting direction can be determined to match the angle applied to 0a, there is also the additional effect that the assembly work is easy to perform.

Incidentally, in the above embodiment, an embodiment of the present invention was applied to a liquid crystal display device, but even when the instrument body 1A is fixed to a predetermined mounting location of the housing 9, the mounting location is not fixed. If the washer 17 is provided with an inclined surface 17b corresponding to the inclination angle,
In addition to the display device or instrument device described above, in the case of a display device using a fluorescent display tube, for example, an alarm display device by selectively lighting a lamp such as a lamp box can be obtained. When fixing the front plate, which is a mounting member, to the case, which is the base member side, from the front of the front plate with screws, it can be applied even when the fixing point of the case is sloped, and it can also be used to fix the display part. The present invention can be similarly applied to the case where an amplifier box that does not have one is fixed to an inclined fixing location of the base member using screws or the like.

In the above embodiment, the washer 17 is provided with the convex portion 17d which is the locking portion, and the circuit board 7 which is the mounting member is
Although the structure is such that a concave portion 7b is provided as an engaging portion,
If a convex engaging portion can be provided integrally with the mounting member, a concave engaging portion may be provided on the inclined surface 17b of the washer 17, as shown in FIG. A structure in which a certain recess 17e is provided, a convex part 7c which is a convex-shaped engaging part is provided integrally from the mounting member side at a position corresponding to the recess 17e, and the mounting member is fixed to the base member side with a screw 12. Also, substantially the same effect as in the above embodiment can be obtained.

Further, the washer 17 in the above embodiment has an upper surface formed as a horizontal surface 17a and a lower surface formed as an inclined surface 17b. However, even if both the upper surface and the lower surface are formed in an inclined shape, the upper surface is formed as a fixing means when assembled. It is sufficient if it spreads in the horizontal direction orthogonal to the tightening direction.

Note that the means for fixing the mounting member and the base member is not limited to the screws 12, but rivet pins or the like may also be used.

[Effect of idea]

This invention includes a base member that forms a fixing point that is inclined with respect to the horizontal direction orthogonal to the tightening direction of the fixing means, and a flat plate part whose lower surface abuts at least the fixing part, and the flat plate part has a vertical direction. In the fixing structure of the mounting member, which fixes the mounting member to the fixing location by the fixing means that passes through the hole, a through hole is formed that passes from the top surface to the bottom surface. a washer at least a lower surface of which is formed into an inclined surface inclined with respect to a horizontal direction perpendicular to the extending direction of the through hole, and a locking portion having a convex shape or a concave shape is formed on the inclined surface; and the mounting member. A concave or convex engaging portion that engages with the locking portion is provided around the hole, and even if the fixing location on the base member side is inclined, the base member can be molded. To provide a fixing structure for a mounting member that does not require complicated work and has extremely high practical value, such as being able to securely fix the mounting member.

[Brief explanation of drawings]

1 and 2 are a cross-sectional view of a liquid crystal display device to which an embodiment of this invention is applied, an exploded perspective view of a fixing structure between a mounting member and a base member, and FIG. 3 is a diagram showing another embodiment of this invention. FIG. 4 is an exploded perspective view of a main part of the applied fixing structure between the mounting member and the base member, and FIG. 4 is a sectional view of a conventional liquid crystal display device. 1...Display body, 1A...Measurement body, 7...
Circuit board, 7a... hole, 7b, 17e... recess,
7c, 17d...Protrusion, 9...Housing, 10
... Mounting leg, 10a... Inclined surface, 11... Mounting hole, 12... Screw, 17... Washer, 17a... Horizontal surface, 17b... Inclined surface, 17c... Through hole.

Claims (1)

[Scope of utility model registration request] a base member forming a fixing point that is inclined with respect to a horizontal direction perpendicular to a tightening direction of the fixing means;
The mounting member is fixed to the fixing location by the mounting member having at least a flat plate portion whose lower surface abuts the fixing location and a hole penetrating the flat plate portion in the vertical direction, and the fixing means inserted through the hole. In the fixing structure of the mounting member, a through hole is formed that penetrates from the upper surface to the lower surface, and at least the lower surface is formed into an inclined surface inclined with respect to the horizontal direction perpendicular to the direction in which the through hole extends, and is convex on the inclined surface. A washer forming a locking portion having a shape or a concave shape, and an engaging portion having a concave or convex shape that engages with the locking portion are provided around the hole of the mounting member. Fixing structure of the mounting member.