JPH10231816A - Attachment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate installation work by fixing a main body by pressurizing and clamping it by a flange part of a case and a screw head end part of a fixing member. SOLUTION: A screw 300 is made contact with an insertion hole of a hole 200k of a fixing member 200, and a head part of the screw 300 is fastened by a screwdriver. In this case, as the hole 200k is slightly smaller than a screw diameter of the screw 300, the screw 300 is inserted while cutting a screw thread in the circumference of this hole 200k, and when it reaches a hole 200j roughly the same as the screw diameter of the screw 300, a screw part of the screw 300 smoothly passes, thereafter, a screw hole 250a of a nut 250 and the screw part of the screw 300 are screwed on each other, a head end surface of the screw 300 makes contact with a side surface of a main body 20 and pressurizes it, a side plate of the main body 20 is pressurized and clamped by a flange part 100a of a case 100 and the head end surface of the screw 300, and an attachment is fixed on the main body 20. In the meantime, as the screw thread is cut in the hole 200k, this screw thread becomes resistance at the time when the screw 300 is loosened, and it is possible to prevent the fall of the screw 300 from the fixing member 200.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a fixing mechanism for attaching an accessory for transmitting or receiving information to a main body in which a control device and the like are built.

[0002]

2. Description of the Related Art A conventional attachment device will be described with reference to FIGS. FIG. 8 is a perspective view showing a state in which the attachment device is fixed to the main body, and FIG. 9 is a side sectional view of FIG.

In FIGS. 8 and 9, the accessory device 1 is housed in a box-shaped case 10 in which a control section and the like are built, and a rectangular flange-shaped flange portion is formed on the back side edge of the case 10. 10a are formed, and the flange portion 10a is formed.
The hole 10f has six holes 10f and six nuts 12 press-fit into the holes 10f. A box-shaped main body 20 made of resin for fixing the attached device 1 has a rectangular opening 20 through which the box of the case 10 is loosely inserted.
a, and a screw hole 20b formed to be inserted into the nut 12 of the flange portion 10a of the case 10.

[0004] Next, the accessory device 1 configured as described above.
Will be described with reference to FIGS. 8 and 9. First, the flange portion 10a of the accessory device 1 is inserted into the opening 20a of the main body 20, and the case 10 is so positioned that the screw holes of the six nuts 12 of the accessory device 1 and the four screw holes 20b of the main body 20 are substantially aligned. The surface of the flange portion 10a is brought into contact with the main body 20, and the screw hole 20 of the main body 20 is formed.
b. Screw 25 is screwed to the end of the screwdriver.
5 is screwed into the nut 12 to fix the accessory device 1 to the main body 20.

[0005]

However, since the conventional accessory 1 is fixed to the main body 20 as described above, first, the flange 10 of the case 10 of the accessory 1 is first mounted.
Since the nut 12 has to be press-fitted into a, the width of the flange portion 10a is increased by the thickness of the nut 12 and the width of the accessory device 1 is increased.

[0006] Second, on the side surface of the main body 20, an attachment device 1 is provided.
A large number of screw holes 20b must be formed in order to attach this, and there is a problem that this processing is complicated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an accessory which can be easily fixed to a main body and which can be easily processed.

[0008]

According to a first aspect of the present invention, there is provided an attachment device which is inserted into an opening provided in a side plate of a main body, and has a flange portion abutting inside the side plate, and a side plate of the main body. And an attachment device fixed to the main body by pressing the flange portion of the case with a fixing mechanism, wherein the fixing mechanism is pierced on any of the peripheral surfaces of the case,
A first hole separated by at least the thickness of the side plate of the main body from a side surface of the flange portion, a second hole separated by a predetermined distance from the first hole in a direction away from the side plate, and a screw having a screw hole. And a screw that is screwed into the screw hole and presses the side plate of the main body at the distal end. The first and second holes are loosely inserted in the first and second holes, and the first and second screws are moved in a loosening direction. A fixing member having two substantially L-shaped projecting pieces engaged with the second hole.

According to a second aspect of the present invention, in the state where the substantially L-shaped projection is engaged and fixed to the fixing member,
A projection is provided which is engaged with the second hole, and a slope portion on which the projection slides inside the second hole.

[0010] The attachment device according to a third invention is characterized in that engagement grooves are provided at ends of the first hole and the second hole.

The attachment device according to a fourth aspect of the present invention is characterized in that the fixing member is made of resin, and the hole diameter of the screw hole insertion portion is slightly smaller than the screw diameter.

The attachment device according to a fifth aspect of the present invention includes a case inserted into an opening provided in a side plate of the main body and having a flange portion abutting on the inside of the side plate; Is fixed to the main body by pressing with a fixing mechanism, the fixing mechanism is provided with a concave storage portion in the case, at least a pair of grooves provided in this storage portion, the storage portion A screw part that can be stored and has a screw hole provided to face the side plate, a screw screwed into the screw hole, and a shaft rotatably supported by the pair of holes. And a member.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 to 3 show an embodiment of the present invention.
This will be described below. In the drawings, the same reference numerals as those in the related art indicate the same or corresponding parts, and a description thereof will be omitted. 1 is an overall perspective view in which the attachment device is fixed to the main body, FIG. 2 is a perspective view of the fixing mechanism in FIG. 1, and FIG. 3 is a view of the fixing mechanism in a state where the fixing member in FIG. It is a side sectional view. 1 to 3, the attachment device 50 includes a box-shaped case 100 in which a control unit and the like are built, and a rectangular flange-shaped flange portion 100 a is formed on the back edge of the case 100. I have.

A fixing mechanism 150 for fixing to the main body 20 is provided on the top surface of the case 100, and the fixing mechanism 150 is equal to or more than the thickness of the side plate of the main body 20 from the front side of the flange portion 100 a of the case 100. A first rectangular hole 100b drilled apart and in parallel with the side surface of the flange 100a in the vicinity of the flange 100a, and a rectangular engagement groove cut at the outer end of the first hole 100b 10
0d is formed, is separated from the engaging hole 100e by a predetermined distance, and the second hole 100c is formed.
The second hole 100c is provided with an engagement hole 100g formed of a cut-out square engagement groove 100f at an outer end thereof, and an inner corner of the engagement hole 100g has a hemispherical shape described later. Beveled portion 1 on which the projection 200z is slid
00x is formed.

Further, the engaging holes 100e of the case 100,
Fixing member 20 formed of resin engaged with 100 g
0, the fixing member 200 forms a substantially cylindrical screw portion 200 a through which the screw 300 is screwed and screwed, and forms a base for the screw portion 200 a and abuts on the top surface of the case 100. A base 200z and two substantially L-shaped protrusions 200s projecting perpendicularly from the left end and the right end of the base 200z and bending the tip substantially at right angles, that is, bent toward the head of the screw 300. And the base 200z
The hemispherical projection 200 provided near the center is
z.

The screwing portion 200a of the fixing member 200 is provided with a large-diameter portion and a medium-diameter portion formed in a substantially cylindrical shape on the side surface and the pressing side of the main body 20, and the large-diameter portion is cut into a hexagonal column. A nut 250 having a screw hole 250a press-fitted and fixed in the formed hole 200h, a cylindrical hole 200j having substantially the same diameter as the screw diameter of the screw 300 from this hole 200h, and a hole 200k having a diameter slightly smaller than this hole. Has been established.

An operation of fixing the attached device 50 configured as described above to the main body 20 will be described. The flange portion 100a of the case 100 is viewed from the front of the opening 20a of the main body 20.
After the insertion, the case 100 is once pulled back, and the side surface of the flange 100 a is brought into contact with the inside of the side plate of the main body 20. As shown in FIG. 2, two substantially L-shaped protrusions 200s of the fixing member 200 are inserted into engagement holes 100e and 100g on the top surface of the case 100, and the protrusions 200s are engaged as shown in FIG. Insert loosely into the holes 100e, 100g.

Next, when the fixing member 200 is slid horizontally in the direction of arrow C in FIG. 3, the hemispherical projection 200g of the fixing member 200 moves to the inclined portion 100X while sliding on the top surface of the case 100. Then, as shown in FIG. 4, the substantially L-shaped projection piece 200 s of the fixing member 200 engages with the engagement holes 100 e and 100 g of the case 100. In this state, when the fixing member 200 is slid in the direction of arrow A in FIG. 2, the two substantially L-shaped protrusions 200s of the fixing member 200
Are engaged with the engagement grooves 100d and 100f, respectively, so that the fixing member 200 is fixed to the case 100.

Screw 300 is fixed to hole 200k of fixing member 200.
Of the screw 300 and tighten the head of the screw 300 with the tip of the screwdriver.
Since the screw 300 is slightly smaller than the screw diameter of 0, the screw 300 is inserted around the hole 200k while cutting the screw thread, and when the screw 300 reaches the hole 200j which is almost the same as the screw diameter of the screw 300,
The screw portion of the screw 300 passes smoothly, and then the nut 250
5 is screwed into the screw hole 250a of FIG.
As shown in the figure, the distal end surface of the screw 300 contacts the side surface of the main body 20 and presses it, and the side plate of the main body 20 is pressed and sandwiched between the flange portion 100a of the case 100 and the distal end surface of the screw 300,
The attachment device 50 is fixed to the main body 20.

As described above, the attachment device 50 is
In order to fix the side plate of the main body 20 by pressing and fixing the side plate of the main body 20 between the flange portion 100a of the main body 20 and the front end surface of the screw 300, the nut 12 is fixed to the flange portion 1 of the case 10 as shown in FIG.
Thus, the width of the flange portion 100a of the case 100 can be reduced, the outer shape of the case 100 can be reduced, and the attachment device 50 can be reduced in size. Further, unlike the related art, the screw hole 20b of the main body 20 is not required, and the mounting operation can be simplified.

The two protrusions 200s provided on the base 200z of the fixing member 200 are provided with engagement holes 100e, 1e.
00g, the fixing member 200 is
The fixing member 200 is not easily dropped from the case 100, and workability when the fixing member 200 is attached to the bottom surface of the case 100 is improved.

The screw 3 screwed to the fixing member 200
When loosening 00, a screw thread is cut in the hole 200k, so that the screw thread becomes a resistance when the screw 300 is loosened, and the screw 300 can be prevented from falling off from the fixing member 200.

When the substantially L-shaped projection 200s of the fixing member 200 is engaged with the engagement holes 100e and 100g, the projection 200s is fitted into the engagement grooves 100d and 100f. Even when the screw is pressed horizontally by a screwdriver when tightening, the fixing member 200 is not
e, It is hard to come off from 100 g, and the mounting work becomes easy.

The material of the fixing member 200 is made of resin for easy molding, but may be made of metal. In the case of metal, a screw hole may be formed in the screwing portion 200a. , Nut 250, holes 200h, 200j, and 200k can be omitted.

The flange 100a of the case 100
If the only purpose is to reduce the thickness of the
0g, the slope 100x of the engagement hole 100g, and the engagement hole 100.
e, the engagement grooves 100d and 100f of 100g may be omitted.

Embodiment 2 FIG. Another embodiment of the present invention will be described with reference to FIG. In this embodiment, a fixing member is accommodated in a case. In the figure, the same reference numerals as those of the conventional and the first embodiment denote the same or corresponding parts, and will be described. FIG. 6 is a side sectional view of the fixing mechanism.

In FIG. 6, this fixing mechanism 1500 is
Storage portion 1000b formed in case 1000 in a concave shape
In addition, two cylindrical engaging grooves 1000e are cut in both side portions above the storage portion 1000b. The fixing member 2000 is provided with two projections 2000e that are engaged with the engagement grooves 1000e of the case 1000 on both lower side surfaces. The screwing portion of the fixing member 2000 is formed similarly to the fixing member 200.

Next, the assembling of the accessory device configured as described above will be described with reference to FIG. First, case 1000
Projection 2000 of the fixing member 2000 in the engagement groove 1000e.
e is rotatably engaged. Fixing member 2000 to case 1
6, the flange portion 1000a of the case 1000 and the main body 20 are brought into contact with each other as shown in FIG.
00 comes into contact with the side of the storage section 1000b. In this state, the screw 300
Are screwed together with the tip surface of the screw portion of the screw 300 and the case 100.
The main body 20 is pressed and clamped by the zero flange 1000a and fixed.

As described above, since the fixing member 2000 is accommodated in the accommodating portion 1000b of the case 1000, it is not necessary to attach the fixing member 2000 as a separate component, and the mounting operation can be simplified.

The fixing mechanism may be the one shown in FIG. In FIG. 7, a lever-shaped fixing member 2200 is made of metal, and a shaft is penetrated through a hole 2200 a formed at an end thereof.
The storage unit 1100b for storing the storage unit 200 is provided.

[0031]

As described above, according to the first aspect of the present invention, the width of the case flange can be reduced because the body is fixed by pressing and holding the case between the case flange and the screw tip of the fixing member. It is possible to reduce the size of the attached device.
In addition, there is an effect that a screw hole is not required in the main body and the mounting operation can be simplified.

According to the second aspect, in addition to the effects of the first aspect, the projection of the fixing member is engaged with the engaging hole of the case, so that the fixing member does not easily fall off the case, and In the case where a fixing member is attached to the lower part, there is an effect that this workability can be improved.

According to the third aspect of the present invention, since the fixing member is slid laterally and the projection is engaged with the groove of the engagement hole, the fixing member is engaged even when the screw is pressed in the horizontal direction when the screw is tightened. There is an effect that the attachment work is improved without being detached from the hole.

According to the fourth aspect of the present invention, since the thread is cut in the hole of the fixing member by tightening the screw, the thread becomes a resistance when the screw is loosened, and the screw can be prevented from falling off. is there.

According to the fifth aspect of the invention, when the fixing member is not used, the fixing member is housed in the accessory device, so that the fixing member does not need to be handled as a separate part, and there is an effect that the accessory device is easy to handle. is there.

[Brief description of the drawings]

FIG. 1 is an overall perspective view in which an attached device according to an embodiment of the present invention is fixed to a main body.

FIG. 2 is a perspective view of the fixing mechanism of FIG.

FIG. 3 is a side sectional view of the fixing mechanism in a state where a protrusion of the fixing member of FIG. 1 is loosely inserted into an engagement hole of a case.

FIG. 4 is a side sectional view of a fixing mechanism in which the fixing member of FIG. 1 is engaged with an engaging hole of a case.

FIG. 5 is a side sectional view of the fixing mechanism in a state where the main body is pressed by the screw of FIG. 1;

FIG. 6 is a side sectional view of a fixing mechanism according to another embodiment of the present invention.

FIG. 7 is a side sectional view of a fixing mechanism according to another embodiment of the present invention.

FIG. 8 is a perspective view showing a state in which a main body of a conventional attachment device is fixed.

FIG. 9 is a side sectional view of the fixing portion of FIG. 8;

[Explanation of symbols]

1,50 accessories, 20 body, 20a opening, 10
0, 1000 case, 100a, 1000a flange, 100b first hole, 100c second hole, 10c
0e, 100g engagement hole, 100d, 100f engagement groove, 100x slope portion, 150 fixing mechanism, 200, 2
000 fixing member, 200h insertion portion, 200a screw portion, 200g projection, 200s L-shaped projection piece, 2
50a screw hole, 300 screw, 1000e storage section,
1000x A pair of holes.

Claims (5)

[Claims] 1. A case which is inserted into an opening provided in a side plate of a main body and whose flange portion is in contact with the inside of the side plate, and a side plate of the main body and a flange portion of the case are pressed by a fixing mechanism. An attachment device fixed to the main body by doing so, wherein the fixing mechanism is formed in any one of the peripheral surface of the case, and at least a thickness of a side plate of the main body from a side surface of the flange portion. A first hole separated from the first hole, and a second hole separated from the first hole by a predetermined distance in a direction away from the side plate.
And a screw portion having a screw hole, a screw screwed into the screw hole, and pressing the side plate of the main body at the tip portion, and loosely inserted into the first and second holes, A fixing member having two substantially L-shaped projecting pieces engaged with the first and second holes by moving the screw in a loosening direction. 2. The fixing member, wherein the substantially L-shaped projection piece is engaged and fixed, wherein the projection is engaged with the second hole and the projection is provided inside the second hole. The attachment device according to claim 1, further comprising a slope portion on which the protrusion slides. 3. An engagement groove is provided at an end of each of the first hole and the second hole.
Ancillary equipment according to. 4. The attachment device according to claim 1, wherein the fixing member is made of resin, and a hole diameter of an insertion portion of the screw hole is made slightly smaller than the screw diameter. . 5. A case which is inserted into an opening provided in a side plate of the main body and whose flange portion is in contact with the inside of the side plate, and which presses the side plate of the main body and the flange portion of the case by a fixing mechanism. The fixing mechanism is provided with a concave storage portion in the case, and the storage portion is provided with at least a pair of grooves, and is stored in the storage portion. A screw portion having a screw hole provided to face the side plate, a screw screwed into the screw hole, and a shaft rotatably supported by the pair of holes. An attachment device comprising a fixing member.