JPH08236960A - Equipment fitting - Google Patents

Abstract

PURPOSE: To provide a fitting which can reduce the external size of equipment without deteriorating its high drip-proofing property and dust-proofing property. CONSTITUTION: A fitting member 10 has a bottom face section 11, front end face section 12, and rear end face section 13 and is fitted to the fitting hole 53 of the side wall of an equipment case 50 with hooks 15 on the lower surface of the bottom face section 11. A movable member 20 has a top face section, front face section 22, and rear face section 23 and is attached to the external surface of the member 10 in a state where the member 20 can slide on the external surface in the forward-backward direction. The front face section 22 has a pressing surface 22a and the edge section of the side wall 52 of the case 50 is inclined in the direction in which the edge section approaches the back of the board 40. When a screw 30 passed through the hole 26 at the back section 23 of the member 20 and the holes 18 and 17 at the rear and front end sections 13 and 12 of the member 10 is screwed in, the pressing surface 22a of the front end section 22 of the member 30 is pushed forward by the front end of the screw 30 and comes into contact with the back of a panel 40 in a line or plane.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting tool for mounting various devices on a panel such as a control panel, an operation panel and an instrument panel.

[0002]

2. Description of the Related Art Conventionally, various attachments have been used to attach various devices such as electronic devices to panels (panels) such as control panels, operation panels, and instrument panels. FIG. 6 is a diagram showing a state in which an electronic device is attached to a board using a conventional attachment.

When mounting an electronic device on the board 40, first, the equipment case 50 is inserted into the opening of the board 40 from the front side, and the flange 51 at the front edge of the equipment case 50 is attached to the board 40.
The front edge of the opening edge of the. In this state, the hooks 61 of the fixture 60 are engaged with the attachment holes 53 provided in the side walls 52 of the equipment case 50, and the screws 70 attached to the bent pieces 62, 63 of the fixture 60 are attached to the board 40. The front end of the screw 70 is brought into contact with the rear surface of the opening edge portion of the board 40 by screwing in the direction toward the rear surface. As a result, the opening edge portion of the board 40 has the flange 51 of the device case 50 and the screw 7 of the fixture 60.
It is sandwiched by 0 and the electronic device is fixed to the board 40.

[0004]

For example, in a factory, there is a high possibility that water drops, dust, and the like will enter the back side of the board 40 through the gap between the opening edge of the board 40 and the flange 51 of the equipment case 50. . If the electronic device touches water droplets or dust,
Since normal operation is not guaranteed, it is necessary to increase the adhesion between the flange 51 of the device case 50 and the opening edge of the board 40 to ensure drip-proof and dust-proof properties. However, in the above-described fixture 60, when the screw 70 is tightened with a large torque, the pressure concentrates at one point of the tip of the screw 70.
The board 40 may be deformed, and a gap may be formed between the opening edge of the board 40 and the flange 51 of the device case 50. Therefore, it is difficult to secure high drip-proof property and dust-proof property.

Further, as shown in FIG. 6, a device case 50
When the fixture 60 is attached to each side wall 52 of the
1 protrudes into the device case 50, so that the device case 5
It is necessary to provide a space for the hook 61 between the zero and the internal element 54 such as an instrument, a display element, an electronic circuit, etc. incorporated therein. Therefore, the inner dimension B of the device case 50 has to be made larger than the outer dimension D of the inner element 54 to some extent, and the outer shape of the electronic device has been increased.

Particularly when the internal element 54 is a display element, it is desired that the ratio of the size of the display screen to the size of the front surface of the electronic device is large. However, since the outer shape of the device case 50 needs to be larger than that of the internal element 54 as described above, the ratio of the size of the display screen to the size of the front surface of the electronic device is small.

Therefore, as shown in FIG.
It is conceivable that the mounting tool 60 is mounted on the side wall 52 of the device case 50 as close to the back surface as possible, and the mounting tool 60 is mounted behind the internal element 54. As a result, a space for the hook 61 of the fixture 60 is not required on the front side inside the device case 50, so that the inner size of the device case 50 can be adjusted to the display element 5.
The outer size of the electronic device can be made substantially equal to the outer size of 4, and the outer shape of the electronic device can be reduced.

However, in this case, since the distance between the tip of the screw 70 and the hook 61 of the fixture 60 becomes long, when the screw 70 is tightened with a large torque, the hook 6 is tightened.
A force acts so that the tip of the screw 70 escapes to the outside of the side wall 52 (direction indicated by an arrow X) with 1 as a fulcrum. As a result, the front portion of the fixture 60 is lifted, and the tip of the screw 70 cannot strongly press the back surface of the board 40. As a result, the device case 50 cannot be firmly fixed to the panel 40, and drip-proof property and dust-proof property cannot be secured.

Therefore, it is an object of the present invention to provide a mounting tool which is capable of downsizing the outer shape of a device while ensuring high drip-proof property and dust-proof property.

[0010]

[Means for Solving the Problems]

(1) 1st invention The fixture of the apparatus which concerns on 1st invention inserts the apparatus case which has a flange in a front edge part from the front side in the opening formed in the board | substrate, and is a flange of the front edge part of an equipment case. Is a fixture for fixing the equipment case from the back side of the board with the front surface of the board being in contact with the front edge of the opening edge of the board. And a moving member mounted on the mounting member so as to be slidable in a vertical direction, and a pressing surface facing the back surface of the board is provided at an end of the moving member on the board side, and an edge portion on the side wall side of the pressing surface. Is inclined toward the back surface of the board, and a screw member for pushing the moving member toward the back surface of the opening edge of the board is screwed to the mounting member.

(2) Second Invention A fixture for a device according to a second aspect of the present invention is a bottom surface of the fixture for a device according to the first invention, wherein the attachment member is disposed on a side wall of the device case. A front end surface portion is erected on the board-side end edge of the part and a rear end surface portion is erected on the end opposite to the board, and holes are formed in the front end surface portion and the rear end surface portion for inserting screw members, respectively. A hook-shaped member that engages with a hole formed in the side wall is provided on the lower surface of the bottom portion.

Further, the moving member has a front surface portion having the above-mentioned pressing surface at the edge of the upper surface portion on the board side, a rear surface portion at the edge opposite to the board, and a screw member on the rear surface portion. It is formed with a loosely fitting hole.

Further, with the moving member mounted on the mounting member, the screw member is screwed into at least one of the hole in the rear end surface portion and the hole in the front end surface portion of the mounting member through the hole in the rear surface portion of the moving member.

(3) Third Aspect of the Invention A fixture for equipment according to a third aspect of the present invention is the fixture for equipment according to the second aspect of the invention, wherein an opening is provided around the hook-shaped member at the bottom of the attachment member. And the opening for visually recognizing the hook-shaped member is formed on the upper surface of the moving member.

(4) Fourth Aspect of the Invention A fixture for equipment according to a fourth aspect of the present invention is the fixture for equipment according to the first aspect of the present invention, wherein the front surface of the moving member is the edge of the upper surface on the board side. It is formed integrally with elasticity.

(5) Fifth Aspect of the Invention A fixture for a device according to a fifth aspect of the invention is the fixture for a device according to the first aspect of the invention, in which the moving member is away from the rear surface of the board with respect to the mount member. It further comprises a biasing means for biasing the.

[0017]

When the equipment is attached to the board using the fixtures according to the first to fifth aspects of the invention, the equipment case is inserted into the opening of the board from the front side, and the flange at the front edge of the equipment case is attached to the board. Abut the front surface of the opening edge. In that state, the mounting member is attached to the side wall of the equipment case, and the moving member slidably attached to the mounting member is moved toward the back surface of the board by the screw member so that the pressing edge of the moving member causes the opening edge portion of the board. Press the back of. As a result, the opening edge of the board is sandwiched between the flange of the equipment case and the pressing surface of the moving member, and the equipment is fixed to the board.

According to this mounting tool, the edge of the pressing surface of the moving member on the side wall side or the surface of the pressing surface contacts the back surface of the board in accordance with the tightening torque of the screw member. This allows
Since the back surface of the board is pressed by the line or surface, the board is not deformed even if the tightening torque by the screw member is increased, and no gap is formed between the opening edge of the board and the flange of the equipment case.
Therefore, high drip-proof property and dust-proof property are secured.

Since the pressing surface of the moving member is inclined rearward with respect to the back surface of the board, that is, the edge of the pressing surface on the side wall of the equipment case is inclined toward the back surface of the board, the screw member is used. As the tightening torque is increased, a force acts in the direction in which the pressing surface of the moving member faces the side wall of the device case. Therefore, even if the mounting member is mounted on the side wall of the device case near the back surface, the tip of the moving member is prevented from escaping outward with respect to the side wall of the device case.
With the mounting member firmly fixed to the side wall of the device case, the pressing surface of the moving member strongly presses the back surface of the board. As a result, no space for a fixture is required on the front side of the device case, and the inner size of the device case can be made closer to the outer size of the internal elements housed on the front side of the device case.

In particular, when the equipment is attached to the board by using the attachment according to the second aspect of the present invention, the hook-like member of the attachment member is engaged with the hole of the side wall of the equipment case, and the moving member is placed on the attachment member. In the fitted state, the screw member inserted into the hole in the rear surface portion of the moving member, the rear end surface portion and the front end surface portion of the mounting member is screwed. As a result, the screw member pushes the moving member forward, the moving member moves forward with respect to the mounting member, and the pressing surface contacts the back surface of the opening edge portion of the board. As a result, the opening edge of the board is sandwiched between the flange of the equipment case and the pressing surface of the moving member, and the equipment is fixed to the board.

In the fixture according to the third aspect of the invention, since the opening is formed around the hook-shaped member on the bottom surface of the mounting member and the opening is formed on the upper surface of the moving member,
The position of the hook-shaped member of the mounting member can be confirmed through the opening in the upper surface of the moving member. Therefore, when the hook-shaped member of the mounting member is engaged with the hole of the side wall of the device case, the positioning of the mounting member becomes easy.

In the fixture according to the fourth aspect of the invention, since the front surface of the moving member is integrally formed with the front end of the upper surface with elasticity, the pressing surface of the moving member is pressed against the back surface of the board by the screw member. In this case, the front surface portion is deformed so that the pressing surface is substantially perpendicular to the upper surface portion, and the entire pressing surface comes into contact with the back surface of the board. As a result, the back surface of the board is pressed by the surface, and the device is firmly fixed to the board.

In the fixture according to the fifth aspect of the present invention, since the urging means for urging the moving member in the direction away from the rear surface of the board with respect to the mounting member is provided, the mounting member is attached to the side wall of the equipment case. When mounting, a gap is formed between the pressing surface of the moving member and the back surface of the board. This facilitates the work of attaching the attachment member to the side wall of the device case.

[0024]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view of a fixture according to an embodiment of the present invention. 2 (a), (b),
(C), (d) is the top view, the side view, the bottom view, and the end view of the state which assembled the fixture of the same Example, respectively. Further, FIG. 3 is a sectional view taken along the line AA of FIG.

As shown in FIG. 1, the mounting tool of this embodiment is composed of a mounting member 10, a moving member 20 and a screw 30. The mounting member 10 and the moving member 20 are
For example, they are integrally formed of metal such as stainless steel.

The mounting member 10 includes a bottom surface portion 11, a front end surface portion 12, a rear end surface portion 13 and two side surface portions 14a and 14b.
Consists of A hook 15 is integrally formed on the lower surface of the bottom surface portion 11, and an opening 16 is formed around the hook 15. Further, holes 17 and 18 are provided in the central portion of the front end face portion 12 and the central portion of the rear end face portion 13, respectively. The diameter of the hole 18 is larger than the diameter of the screw 30, and a screw groove that engages with the thread of the screw 30 is formed inside the hole 17.

The moving member 20 includes an upper surface portion 21 and a pressing surface 22.
It has a front surface portion 22 having a, a rear surface portion 23 and two side surface portions 24a and 24b. An opening 25 is formed in the upper surface portion 21. A hole 26 is provided in the center of the rear surface portion 23. The diameter of the hole 26 is set larger than the diameter of the screw 30.

As can be seen from FIG. 3, the front surface portion 22 is bent at an angle slightly wider than the vertical direction with respect to the upper surface portion 21, and the lower end of the pressing surface 22a is inclined so that it is more distant from the rear surface portion 23 toward the front than the upper end. are doing. The front surface portion 22 is formed with some elasticity in the front-rear direction with respect to the upper surface portion 21.

As shown in FIGS. 2 and 3, the outer size of the mounting member 10 is smaller than the inner size of the moving member 20, and the moving member 20 is located outside the mounting member 10 in the front-back direction (side surface portion 14).
It is slidably fitted in the directions a and 14b. The rear end surface portion 13 of the mounting member 10 and the rear surface portion 23 of the moving member 20.
With the spring 31 interposed between the moving member 20 and
The screw 30 is inserted into the hole 26 in the rear surface portion 23 and the hole 18 in the rear end surface portion 13 of the mounting member 10. The screw 30 is loosely fitted in the holes 26 and 13, and the tip thereof is the hole 1 of the front end face portion 12.
Screw to 7.

In this state, as shown in FIG. 3, the rear surface portion 23 of the moving member 20 is biased by the spring 31 in the direction away from the rear end surface portion 13 of the mounting member 10, and the front surface portion 22 of the moving member 20 is mounted. Front end face portion 12 of member 10
Is in contact with

Next, a method of mounting an electronic device on a board using the mounting tool of this embodiment will be described with reference to FIGS. 4 and 5. The electronic device shown in FIGS. 4 and 5 has a display element 54 built in on the front side inside the device case 50.

As shown in FIG. 4, the equipment case 50 is inserted into the opening of the board 40 from the front side, and the flange 51 at the front edge of the equipment case 50 is brought into contact with the front surface of the opening edge of the board 40. In this state, the hook 15 of the mounting member 10 is engaged with the mounting hole 53 formed in the side wall 52 of the device case 50. At this time, the opening 2 of the upper surface 21 of the moving member 20
The position of the hook 15 can be confirmed through 5.
This facilitates the work of positioning the hook 15 in the mounting hole 53.

Further, since the moving member 20 is biased by the spring 31 in the direction away from the back surface of the board 40, a sufficient gap is formed between the front surface portion 22 of the moving member 20 and the back surface of the board 40. . Therefore, the work of attaching the attachment to the side wall 52 of the device case 50 becomes easy.

Thereafter, when the screw 30 is tightened, as shown in FIG. 5, the tip of the screw 30 moves the front surface 22 of the moving member 20 and the head of the screw 30 moves the rear surface 23 of the moving member 20 in the direction of arrow Z. And pushes the pressing surface 22a against the back surface of the board 40. As a result, the opening edge of the board 40 has the flange 51 of the device case 50 and the pressing surface 22a of the moving member 20.
It is sandwiched with the lower edge of.

Since the front surface portion 22 is inclined rearward with respect to the back surface of the board 40, when the pressing surface 22a of the front surface portion 22 is pressed against the board 40 with a larger tightening torque, the front surface portion 2
The force acts in the direction in which 2 is directed to the side wall 52 of the device case 50, that is, in the direction indicated by arrow Y.

As a result, as shown in FIGS. 4 and 5, even when the fixture is attached to a position near the back surface of the equipment case 50, the front surface portion 22 of the moving member 20 has the side wall 52.
The front part of the mounting member 10 does not escape outwardly with respect to the side wall 5
It is prevented from rising from 2. Therefore, the back surface of the opening edge portion of the board 40 is strongly pressed by the pressing surface 22a in a state where the fixture is firmly fixed to the side wall 52 of the device case 50.

When the screw 30 is tightened with a larger torque, the front surface portion 22 is bent with respect to the upper surface portion 21 so that the pressing surface 22a of the moving member 20 is substantially perpendicular to the upper surface portion 21, and the pressing surface 22a The entire surface contacts the back surface of the board 40. Thereby, the back surface of the board 40 is pressed by the surface. Therefore, the board 40 is not deformed and a gap is not formed between the opening edge portion of the board 40 and the flange 51 of the device case 50, and higher drip-proof property and dust-proof property can be secured. In addition,
When the screw 30 is loosened when the electronic device is removed, the front surface portion 22 restores to the above-mentioned inclined state.

As described above, the fixture is attached to the equipment case 50.
Since it can be attached to a position close to the back surface of the side wall 52, the outer size of the device case 50 can be made substantially equal to the outer size of the display element 54 accommodated on the front side. As a result, the outer shape of the electronic device can be reduced, and the ratio of the display screen to the size of the front surface of the electronic device can be increased.

The structure of the mounting member and the moving member is not limited to the structure of the above-mentioned embodiment, but other structures may be used as long as the pressing surface inclined rearward can slide back and forth with respect to the mounting member. Good.

The material of the attachment is not limited to metal, but hard plastic or other material having a relatively high rigidity may be used. Further, in the above embodiment, the mounting member 1
Although one hook 15 is provided at 0, a plurality of hooks may be provided.

[0041]

According to the first to fifth aspects of the invention, since the back surface of the opening edge of the board is pressed by the pressing surface of the moving member with a line or a surface, the board is not deformed and has high drip-proof property. Dustproofness is secured. Moreover, since the mounting surface can be mounted on the side wall of the device case close to the back surface due to the inclination of the pressing surface, the outer size of the device can be reduced.

In particular, according to the third aspect, the position of the hook-shaped member of the mounting member can be confirmed through the opening formed in the upper surface of the moving member, so that the mounting member on the side wall of the equipment case can be confirmed. Positioning becomes easy.

Further, according to the fourth aspect of the invention, since the front surface of the moving member is integrally formed with the upper surface with elasticity, the front surface of the moving member faces the back surface of the opening edge of the board. It can be brought into contact, and the drip-proof property and dust-proof property are further improved.

According to the fifth aspect of the invention, the moving member is biased with respect to the mounting member in a direction away from the back surface of the board,
Since a gap is formed between the front surface of the moving member and the back surface of the board, the work of mounting the mounting member on the side wall of the equipment case becomes easy.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a fixture according to an embodiment of the present invention.

FIG. 2 is a plan view, a side view, a bottom view and an end view of a state in which a fixture according to an embodiment of the present invention is assembled.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view showing a method of mounting an electronic device on a board using a mounting tool according to an embodiment of the present invention.

FIG. 5 is a diagram showing a method of mounting an electronic device on a board using a mounting tool according to an embodiment of the present invention.

FIG. 6 is a diagram showing a state in which an electronic device is attached to a board using a conventional attachment.

FIG. 7 is a diagram for explaining a problem when a conventional fixture is attached to a side wall of a device case near a rear surface thereof.

[Explanation of symbols]

 10 Mounting member 11 Bottom part 12 Front end face part 13 Rear end face part 15 Hook 16 Opening part 17, 18 hole 20 Moving member 21 Top face part 22 Front face part 22a Pressing face 23 Rear surface part 25 Opening part 26 Hole 30 Screw 31 Spring 40 Board 50 Equipment Case 51 Flange 52 Side wall 53 Mounting hole

Claims (5)

[Claims] 1. A device case having a flange on a front edge is inserted into an opening formed in a panel from the front side, and a flange of a front edge of the device case is brought into contact with a front surface of the opening edge of the panel. A fixture for fixing the device case from the back side of the panel in a state in which the device case is slidable in a vertical direction with respect to a mounting member that can be attached to the side wall of the device case and the back surface of the panel. A moving member attached to the mounting member, a pressing surface facing the back surface of the board is provided at an end portion of the moving member on the board side, and an edge portion of the pressing surface on the side wall side is the Mounting of equipment, characterized in that the pressing surface is inclined toward the back surface of the board, and a screw member for pushing the moving member toward the back surface of the opening edge of the board is screwed into the mounting member. Ingredient 2. The mounting member has a front end face portion standing on an edge of the bottom face portion arranged on the side wall of the equipment case on the side of the panel and a rear end face portion on an edge opposite to the panel. While standing upright, holes for inserting the screw members are formed in the front end surface portion and the rear end surface portion, respectively, and hook-shaped members that engage with the holes formed in the side wall are provided on the lower surface of the bottom surface portion. The moving member has a front surface portion having the pressing surface at an end edge of the upper surface portion on the board side and a rear surface portion at an end edge opposite to the board, and the screw member on the rear surface portion. In a state where the moving member is mounted on the mounting member, the screw member is passed through the hole in the rear surface portion of the moving member, and the hole in the rear end surface portion of the mounting member and At least one of the holes on the front end face is screwed into the hole. Fitting device according to claim 1, wherein. 3. An opening is formed on the bottom surface of the mounting member around the hook-shaped member, and an opening is formed on the top surface of the moving member for observing the hook-shaped member. The equipment fixture according to claim 2, wherein 4. The fixture for an apparatus according to claim 2, wherein the front surface portion of the moving member is elastically integrally formed with an edge of the upper surface portion on the board side. 5. The fixture for an apparatus according to claim 1, further comprising a biasing unit that biases the moving member with respect to the mounting member in a direction away from the rear surface of the board.