JPH08236961A - Fitting and structure for fitting equipment - Google Patents

Abstract

PURPOSE: To provide a fitting which can reduce the thickness of a fitting space without deteriorating its high drip-proofing property and dust-proofing property. CONSTITUTION: Long fitting members 11 are respectively arranged along side walls 32a and 32b in parallel with a board 40. The front edge 11a of each member 11 is linearly formed and the central part of the rear edge 11b of the member 11 is formed in a recessed state. The maximum width between the front edge 11a and rear edge 11b of the member 11 is made narrower than the depth of the side walls 32a, 32b, 32c, and 32d of an equipment case 30 and recessed sections 33 are provided at the four corners on the back of the case 30 and back sections 14 which are put in the recessed sections 33 of the case 30 are formed at both ends of the rear edge 11b of the member 11. In addition, a tapped hole 15 are formed in each back section 14. When screws 20 are screwed in the tapped holes 15 in the back sections 14 and tapped holes 34 of the case 30, the front edge 11a of the member 11 is pressed against the back of the board 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting tool and a mounting structure 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. 5: is a figure which shows the state which attached the electronic device to the board using the conventional fixture.

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 screw 70 is screwed in the direction toward the back surface, and the tip of the screw 70 is brought into contact with the back surface of the board 40. As a result, the opening edge of the board 40 is clamped by the flange 51 of the device case 50 and the screw 70 of the fixture 60, 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. . The normal operation is not guaranteed if the electronic device comes into contact with water drops or dust, so the flange 5 of the device case 50
It is necessary to improve the adhesion between 1 and the board 40 to secure the drip-proof property and the dust-proof property. However, the fixture 60 described above
Now, if you tighten the screw 70 with a large torque, the screw 7
Since the pressure is concentrated on one point of the tip of 0, the board 40 may be deformed and a gap may be formed between the opening edge portion 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, when a thin electronic device is attached to the thick board 40 by using the attachment 60, the screw 70 of the attachment 60 projects to the back side of the equipment case 50. As a result, even though the electronic device is thin, a large mounting space is required, and the advantages of the thin electronic device are lost.

[0006] An object of the present invention is to provide a mounting tool capable of firmly mounting equipment on a board while ensuring high drip-proof property and dust-proof property. Another object of the present invention is to
An object of the present invention is to provide a mounting tool and a mounting structure capable of achieving a thin mounting space while ensuring high dripproofness and dustproofness.

[0007]

[Means for Solving the Problems]

(1) First Invention A fixture according to the first invention is that a device case having a flange at a front edge is inserted into an opening formed in a board from the front side, and a flange at a front edge of the equipment case is installed at the board. Is a fixture for fixing the equipment case from the back side of the panel in a state of being in contact with the front surface of the opening edge part of the device, which is a long-sized attachment arranged parallel to the panel on the side wall of the equipment case. A mounting member, and an abutting edge portion that abuts the back surface of the opening edge portion of the board along the side wall is formed at the edge portion of the mounting member facing the board, and the device is provided on the edge portion of the mounting member opposite to the board. A rear portion is provided along the rear surface of the case, a screw member is inserted through the rear portion, and the rear portion can be attached to the rear surface of the device case with the screw member.

(2) Second Invention In a device mounting structure according to the second invention, a device case having a flange on a front edge is inserted into an opening formed in a board from the front side, and a front edge of the device case is inserted. A mounting structure for fixing the equipment case from the back side of the board with the flange of the part abutting against the front of the opening edge of the board. A long mounting member having a width shorter than the depth of the side wall is arranged parallel to the board on the side wall of the equipment case, and the board opening is formed along the side wall at the edge of the mounting member facing the board. A back edge that contacts the back of the edge is formed, and a back section that fits into the recess of the equipment case is provided at both ends of the edge of the mounting member opposite to the board. It is fixed in the recess.

(3) Third Invention A device mounting structure according to a third invention is the device mounting structure according to the second invention, wherein a central portion of an edge portion of the mounting member opposite to the board is concave. It was formed.

(4) Fourth Invention A device mounting structure according to a fourth invention is the device mounting structure according to the second invention, wherein a hole is formed in the mounting member.

(5) Fifth Aspect of the Invention A device mounting structure according to a fifth aspect is the device mounting structure according to the second aspect of the invention, in which the edges of both ends of the mounting member are respectively attached to the side walls on both sides. In addition to providing the side surface portion along the side surface, the edge portion of the side surface portion facing the board is formed with an abutting edge portion that abuts on the back surface of the board.

(6) Sixth Invention A device mounting structure according to a sixth invention is the device mounting structure according to the fifth invention, wherein the device case is mounted on a panel near the corners of the side walls of the device case. The groove is formed in the vertical direction, and the protrusion that engages with the groove is provided inside the side surface of the mounting member.

(7) Seventh Invention A device mounting structure according to a seventh invention is the device mounting structure according to the second invention, wherein a mounting member is mounted on a longitudinal side wall.

(8) Eighth Invention In the equipment fixture according to the eighth invention, a device case having a flange at the front edge and a recess at the rear corner is formed on the board. A fixture for fixing the equipment case from the back side of the board, with the flange of the front edge of the equipment case abutting the front surface of the opening edge of the board, inserted into the opening from the front side. A long mounting member is arranged on the side wall of the equipment case in parallel with the board and has a width shorter than the depth of the side wall, and the board opening is formed along the side wall at the edge of the mounting member facing the board. A back edge that contacts the back of the edge is formed, and a back section that fits into the recess of the equipment case is provided at both ends of the edge of the mounting member opposite to the board. It can be installed in the recess of the equipment case.

[0015]

When the equipment is attached to the board by using the attachments and the attachment structure according to the first to eighth aspects of the invention, the equipment case is inserted into the opening of the board from the front side, and the flange of the front edge of the equipment case is inserted. To the front of the opening edge of the board. In this state, the mounting member is arranged parallel to the board on the side wall of the equipment case. Then, the back surface portion is fixed to the back surface of the device case by a screw member so that the contact edge portion of the mounting member presses 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 abutting edge of the mounting member, and the equipment is fixed to the board.

According to this fixture, the back surface of the board is linearly and uniformly pressed by the abutting edge of the fitting member over a length substantially equal to the side wall of the equipment case parallel to the board. Even if the board is strongly pressed, the board is not deformed, and there is no gap 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.

In the mounting structure according to the second invention,
The width of the attachment member is formed to be shorter than the depth of the side wall of the device case, and the back surface portion fits into the recess on the back surface of the device case. Therefore, even when a thin device case is attached to a thick board, the fixture does not project to the back side of the device case.

In the mounting structure according to the third invention,
Since the central portion of the edge portion of the mounting member opposite to the board is formed in a concave shape, the cable can be passed through the concave portion. Therefore, the cable can be taken out from the side wall of the device case, and the device can be made thin.

In the mounting structure according to the fourth invention,
Since the mounting member is provided with the holes, it does not prevent the heat radiation from the side wall of the electronic device. In the mounting structure according to the fifth aspect of the present invention, since the back surface of the opening edge portion of the board is pressed by the contact edge portion of the mounting member and the contact edge portion of the side surface, drip-proof property and dust-proof property are further improved. improves.

In the mounting structure according to the sixth aspect of the present invention, since the protrusions that fit into the grooves on the both side walls of the equipment case are provided inside the side surface portions, the protrusions of the attachment tool are formed in the grooves of the equipment case. The fitting can be easily positioned with respect to the device case by fitting it into the device case.

In the mounting structure according to the seventh invention,
Since the board is pressed by the mounting member along the longitudinal direction of the equipment case, higher dripproofness and dustproofness are secured. In the fixture according to the eighth aspect of the present invention, the width of the attachment member is formed to be shorter than the depth of the side wall of the device case, and the back surface portion fits into the recess on the back surface of the device case. Therefore, even when a thin device case is attached to a thick board, the fixture does not project to the back side of the device case.

[0022]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a perspective view of a fixture according to an embodiment of the present invention. 2 (a), (b),
(C) and (d) are views of the fixture of FIG. 1 as viewed from above (direction of arrow A), from behind (direction of arrow B), below (direction of arrow C) and from front (direction of arrow D). Is.

The fixture 10 of FIG. 1 is integrally formed of metal such as stainless steel. The mounting member 11 has substantially the same length as the longitudinal side wall of the electronic device, and the front end edge 11a serving as the abutting edge portion is formed in a linear shape, and the rear end edge 1
The central portion of 1b is formed in a concave shape. A flange portion 12 that is substantially vertical to the mounting member 11 is formed on the rear edge 11b. Further, the mounting member 11 is provided with a plurality of holes 13.

At both ends of the rear end edge 11b of the mounting member 11, a back surface portion 14 perpendicular to the mounting member 11 is provided. Each back surface portion 14 is provided with a screw hole 15 into which a screw 20 is loosely fitted.

Side surface portions 16 perpendicular to the mounting member 11 are provided on both side edges of the mounting member 11, respectively.
Bending pieces (protrusions) 17 that are bent substantially vertically inward are formed on the side edges of each side surface portion 16. In addition, each side surface portion 16
A front end face portion 18 that is bent substantially vertically outward is provided on the front end edge of the. The side surface portion 16 is also provided with a hole 19.

FIG. 3 is a perspective view showing a method of mounting an electronic device on a board using the mounting tool 10 of this embodiment. Further, FIG. 4A is a diagram of the state before mounting the fixture 10 as viewed from below the electronic device, and FIG. 4B is a diagram of the state after mounting the fixture 10 as viewed from below the electronic device. is there.

As shown in FIG. 3, a flange 31 is provided on the front edge of the device case 30 of the electronic device.
The device case 30 has a rectangular shape, and upper and lower side walls 32a and 32b are longer than the side walls 32c and 32d on both sides. Recesses 33 are provided at the four corners of the back surface of the device case 30, and the screw holes 3 are provided in the recesses 33.
4 are provided.

Grooves 35 extending in the direction perpendicular to the board 40 are provided near the upper ends and the lower ends of the side walls 32c and 32d on both sides. Further, a recess 36 is also provided in the lower center of the back surface of the device case 30. On the inner wall of the recess 36, as shown in FIG.
A connector 37 is attached. This connector 37
The cable connected to the cable extends downward.

On the other hand, the maximum width between the front end edge 11a and the rear end edge 11b of the fixture 10, that is, the length between the front end edge 11a and the back surface portion 14 is the side wall 32a of the equipment case 30.
It is formed shorter than the depth of 32b, 32c, and 32d.

When the above electronic equipment is attached to the board 40, first, the equipment case 30 is inserted into the opening 41 of the board 40 from the front side, and the flange 3 at the front edge of the equipment case 30 is inserted.
1 is brought into contact with the front surface of the edge portion of the opening 41 of the board 40. In this state, the fixture 10 is attached to the upper side wall 32a and the lower side wall 32b of the device case 30, respectively.

At this time, when the bending piece 17 of the fixture 10 is fitted into the groove 35 of the device case 30 and slid forward, the rear surface portion 14 of the fixture 10 is fitted into the recess 33 of the device case 30. Together with the screw hole 15 of the fixture 10.
Are positioned in the screw holes 34 of the device case 30. Thus, the bending piece 17 of the fixture 10 and the equipment case 3
With the groove 35 of 0, the fixture 1 for the device case 30
Positioning of 0 becomes easy.

Then, the screw 20 is screwed into the screw hole 34 of the equipment case 30 through the screw hole 15 of the fixture 10.
Thereby, the fixture 10 is pushed toward the rear surface of the board 40, and the front end edge 11 a and the front end surface portion 18 of the fixture 10 come into contact with the rear surface of the edge portion of the opening 41 of the board 40. Further, when the screw 20 is tightened with a large torque, the back end of the board 40 is pressed by the front end edge 11a of the fixture 10 and the front end face portion 18. As a result, the edge of the opening 41 of the board 40 is sandwiched between the flange 31 of the device case 30 and the fixture 10, and the electronic device is fixed to the board 40.

At this time, the board 40 is linearly pressed by the front end edge 11a of the fixture 10 along the longitudinal direction of the equipment case 30, and is also pressed vertically by the front end surface portion 18 of the fixture 10. Therefore, the edge of the opening 41 of the board 40 is not deformed and the flange 31 of the device case 30 is not deformed.
And the edge of the opening 41 of the board 40 firmly adhere to each other, and higher drip-proof property and dust-proof property are secured.

As described above, in the fixture 10 of this embodiment, the maximum width between the front end edge 11a and the rear end edge 11b is larger than the depth of the side walls 32a, 32b, 32c, 32d of the equipment case 30. Since the back portion 14 is formed short and fits in the recess 33 on the back surface of the device case 30, the fixture 10 does not project to the back side of the device case 30 even when the board 40 is thick. . Therefore, the mounting space of the electronic device can be thinned.

Further, since the rear end edge 11b of the mounting member 11 is formed in a concave shape, the cable connected to the connector 37 mounted in the recess 36 can be passed through the concave portion. Therefore, the cable can be taken out from the side wall of the device case 30 without interfering with the fixture 10, and the electronic device can be thinned.

Further, since the mounting member 11 and the side surface portion 16 are provided with the holes 13 and 19, respectively, heat radiation from the side walls 32a, 32b, 32c and 32d of the device case 30 is not hindered.

Although the fixture 10 is mounted on the side walls 32a, 32b in the long side direction of the device case 30 in the above embodiment, the fixture 10 is attached to the side walls 32c, 32d in the short side direction of the device case 30. You may wear it.

The material of the fixture 10 is not limited to metal, but hard plastic or other material having a relatively high rigidity may be used.

[0039]

According to the first to eighth aspects of the invention, the back surface of the opening edge of the board is linearly formed by the abutting edge of the mounting member over a length substantially equal to the side wall of the equipment case parallel to the board. Since it can be pressed, deformation of the board can be prevented, and high dripproofness and dustproofness can be secured.

In particular, according to the second aspect of the invention, even if a thin device is mounted on a thick board, the fixture does not project to the rear side of the device case, so that the device installation space can be made thin. It will be possible.

According to the third invention, the cable can be taken out from the side wall of the equipment case through the concave portion of the mounting member, so that the equipment can be made thin. Fourth
According to the invention, since the mounting member is provided with the hole, heat radiation from the side wall of the electronic device is not hindered.

According to the fifth aspect of the invention, the opening edge of the board is pressed by the contact edge of the side member in addition to the contact edge of the mounting member, so that the drip-proof property and dust-proof property are further improved. . According to the sixth aspect of the invention, since the ridges that fit into the grooves of both side walls of the device case are provided inside the side surface portion, the work of mounting the fixture on the side wall of the device case is facilitated, and Since it is pressed vertically, the drip-proof and dust-proof properties of the top, bottom, left and right sides are improved.

According to the seventh aspect of the invention, since the board is pressed by the mounting member along the longitudinal direction of the equipment case, higher dripproofness and dustproofness can be secured. According to the eighth aspect, even if a thin device is mounted on a thick board, the fixture does not project to the back side of the device case, so that the mounting space of the device can be thinned.

[Brief description of drawings]

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

FIG. 2 is a top view, a rear view, a lower view, and a front view of a fixture according to an embodiment of the present invention.

FIG. 3 is a perspective view illustrating a method of mounting an electronic device on a board using a mounting tool according to an exemplary embodiment of the present invention.

FIG. 4 is a view of the fixture before and after attachment according to an embodiment of the present invention as viewed from below the device case.

FIG. 5 is a cross-sectional view showing a state in which an electronic device is mounted on a board using a conventional mounting tool.

[Explanation of symbols]

 10 Mounting Tool 11 Mounting Member 11a Front Edge 11b Rear Edge 13,19 Hole 14 Back Part 15 Screw Hole 16 Side Part 17 Bending Piece 18 Front End Face 20 Screw 30 Equipment Case 31 Flange 32a, 32b, 32c, 32d Side Wall 33, 36 Recess 34 Screw hole 35 Groove 37 Connector 40 Board 41 Open

Claims (8)

[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 board in a state where the device case has a long mounting member arranged in parallel with the board on the side wall of the device case, An abutting edge portion that abuts the back surface of the opening edge portion of the board along the side wall is formed at an edge portion of the mounting member facing the board, and the abutting edge portion of the mounting member opposite to the board is formed. A fixture for a device, wherein a back portion is provided along the back surface of the equipment case, a screw member is inserted through the back portion, and the back portion can be attached to the back surface of the equipment case by the screw member. 2. A device case having a flange on the front edge is inserted into an opening formed in a board from the front side, and a flange of the front edge of the equipment case is brought into contact with the front surface of the opening edge of the board. In this state, a mounting structure for fixing the device case from the back side of the board is provided with recesses at the corners of the back face of the device case, and the depth of the side wall on the side wall of the device case. A long mounting member having a width shorter than the length of the mounting member is arranged in parallel with the panel, and at the edge of the mounting member facing the panel, along the side wall on the back surface of the opening edge of the panel. A back edge part that forms a contact edge part that abuts and that fits into the recess of the device case is provided at both end parts of the edge part of the attachment member opposite to the board, and the back part is formed by a screw member. Device characterized by being fixed in the recess Mounting structure. 3. The equipment mounting structure according to claim 2, wherein a central portion of an edge portion of the mounting member opposite to the panel is formed in a concave shape. 4. The device mounting structure according to claim 2, wherein a hole is formed in the mounting member. 5. The side portions along the side walls on both sides of the side wall are provided at the edges of both ends of the mounting member, respectively.
The equipment mounting structure according to claim 2, wherein an abutting edge portion that abuts a back surface of the board is formed at an edge portion of the side surface portion facing the board. 6. A groove formed in a direction perpendicular to the board near corners of side walls on both sides of the equipment case, and a protrusion engaging with the groove inside the side surface of the mounting member. The equipment mounting structure according to claim 5, wherein a strip is provided. 7. The device mounting structure according to claim 2, wherein the mounting member is mounted on a longitudinal side wall. 8. A flange of a front edge of the device case is inserted from an anterior side into an opening formed in a panel, the device case having a flange on a front edge and a recess on a rear corner. Is a fixture for fixing the equipment case from the rear side of the board in a state of being brought into contact with the front surface of the opening edge portion of the board, and arranged on the side wall of the equipment case in parallel with the board. A long attachment member having a width shorter than the depth of the side wall is provided, and the edge of the attachment member facing the panel is abutted against the back surface of the opening edge of the panel along the sidewall. A contact edge portion is formed in contact with each other, and a back surface portion that fits into the recess of the equipment case is provided at both end portions of the edge portion of the mounting member opposite to the board, and a screw member is screwed on the back surface portion. And attach the back part to the recess of the equipment case with the screw member. Fitting devices, characterized in that the capacity.