JPH1154002A - Fixing tool and fixing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing tool and a fixing mechanism capable of angle adjusting delicately with a low cost and a compact size at the time of fixing a detector and a measuring instrument. SOLUTION: A fixing tool 2 has a fixing part 25 which fixes a detector 1 thereon. A pair of screw insertion parts are formed on the fixing tool 2 so as to fix the detector 1 at a fixing position, and under such a condition that a male screw 3 is inserted into the screw insertion part to loosely fix the fixing tool 2 at the fixing position, an engaging part for rotation 28 is formed to rotate the fixing tool 2 by way of engaging a rotation operating tool C therewith.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a mounting device and a mounting mechanism for a detector or a measuring device.

[0002]

2. Description of the Related Art Detectors such as photoelectric switches and ultrasonic sensors, and measuring instruments such as laser rangefinders have directivity. It is necessary to adjust the angle (adjustment of the optical axis and the like) and set the direction in which light and sound are emitted and the direction in which light and sound are incident with sufficient accuracy. However, conventionally, in a state in which the detector is loosely mounted together with the mounting bracket with a mounting male screw, the detector is moved with a hand or pliers together with the mounting bracket to set the mounting angle of the detector. He was tightening it with a tool such as a screwdriver. When the mounting male screw is finally tightened, since the rotational force of the mounting male screw is transmitted to the surface of the mounting bracket by frictional resistance, the mounting bracket slightly rotates with the rotation of the mounting male screw. Therefore, fine angle adjustment is difficult.

[0003] On the other hand, conventionally, an angle adjusting device which can freely adjust the mounting angle of a photoelectric switch head along a guide has been used. However, such an angle adjusting device has a complicated structure, which leads to an increase in cost and an increase in the size of the mounting mechanism.

[0004] A screw 100 in which a male screw portion 102 is eccentric with respect to a head portion 101 shown in FIG.
The screw 100 is screwed into the detector 103 shown in FIG.
10C is engaged with the elongated hole 105 of the mounting bracket 104, and the screw 100 is rotated in the direction of the arrow in FIG. 10C so that the mounting angle of the detector 103 in FIG. 10B can be adjusted. Some have been made. However, in this adjustment method, it is necessary to form a female screw corresponding to the male screw portion 102 in FIG.
3 leads to an increase in size. Further, a thin rod-shaped head having a diameter of several mm or less cannot be attached.

Accordingly, it is a primary object of the present invention to provide a low-cost, small-sized mounting tool and a mounting mechanism capable of finely adjusting the angle when mounting a detector or a measuring instrument.

[0006]

In order to achieve the above-mentioned object, the mounting device of the present invention has a pair of screw insertion portions for fixing a detector or a measuring device to a mounting position, and the pair of screws is provided. With the mounting male screw inserted through the insertion part,
A rotation engagement portion is formed for engaging the rotation operation tool and rotating the attachment together with the detector or the measuring instrument.

Further, according to the mounting mechanism of the present invention, in a mounting mechanism in which a pair of screw insertion portions for fixing a detector or a measuring device to a mounting portion is formed in a mounting tool, a male screw is mounted on each of the pair of screw insertion portions. In this state, a rotating engagement portion for engaging the rotation operating tool and rotating the detector or the measuring instrument together with the mounting tool while the is inserted is formed on the detector or the measuring instrument.

When mounting the detector, etc., let the mounting screws be loosely fixed to the mounting locations by inserting male mounting screws into a pair of screw insertion portions, that is, rotate the mounting tools with a finger or the like. Even if the mounting fixture is fixed so that it does not rotate, the rotation operating tool is engaged with the rotation engaging portion to rotate the detector (measurement instrument) and the mounting tool, thereby adjusting the mounting angle. After this adjustment, the mounting male screw inserted into the screw insertion portion is tightened with a predetermined tightening torque to fix the detector and the like.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a first embodiment. The detector 1 of the present embodiment includes an amplifier unit having a signal processing circuit (not shown) and a head unit separate from the amplifier unit. For example, the diameter of the optical fiber 10 having a built-in lens at the tip is about 4 mm. Is a rod type.

The attachment 2 is thin (eg, 0.5 mm thick)
The metal plate is bent into a rectangular wave shape to form a pair of bottom plate portions 20 and 21.
Rising pieces 22 and 23 rising from
2 (a) with the upper plate portion 24 erected between
A mounting part 25 for fixing the detector 1 is formed as shown in FIG. Screw insertion portions 26 and 27 are formed in the pair of bottom plate portions 20 and 21 of FIG. 1, respectively. One screw insertion portion 26 is formed of a notch hole, and the other screw insertion portion 27 is formed.
Are formed through holes, and are formed long in two directions orthogonal to each other. The male screw portion 30 of the mounting male screw (screw) 3 is inserted into each of the screw insertion portions 26 and 27, and the mounting male screw 3 is screwed into the female screw 31 formed at the mounting location. 2 (a), the detector 1 is attached to the fixture 2
And is fixed to the mounting location. In addition, 32 is a washer.

The upper plate portion 24 of FIG. 1 is formed with a groove-shaped rotation engaging portion 28. The rotation engaging portion 28 includes:
It is formed by notching a bent portion obtained by bending a metal plate, that is, is formed by notching the rising pieces 22, 23 and the upper plate 24, and has a thickness greater than the thickness of the metal plate. The engagement depth D is set large. The rotation engaging portion 28
Is formed at an intermediate position between the pair of screw insertion portions 26 and 27, and has a groove width W of, for example, about 1.5 mm or more and 2.0 mm or less.

Next, a method of mounting the detector 1 will be described. First, the mounting male screw 3 shown in FIG.
6 and 27 and the female screw 31 with a small torque.
2A, the detector 1 shown in FIG. 2A is lightly pressed from above by the upper plate portion 24 of the mounting portion 25, and the detector 1 is loosely fixed to the mounting member 2. Is loosely fixed to the mounting portion (with such a force that the mounting tool 2 does not rotate even if the mounting tool 2 is rotated with a finger or the like). In this state, as shown in FIG. 2 (b), after the rotation operating tool C made of a coin such as a one hundred yen coin or a ten yen coin is engaged with the rotation engagement portion 28, the rotation operation tool C is slightly moved in the direction of arrow A. By rotating, the detector 1 and the mounting fixture 2 are slightly rotated around the mounting male screw 3 of FIG. 2B inserted through the one screw insertion portion 26 of FIG. Fine-tune. After this fine adjustment, the mounting male screw 3 in FIG. 2A is tightened with a predetermined torque to fix the detector 1 and the mounting fixture 2 so as not to rotate.

In this case, the mounting fixture 2 has a rotation engaging portion 28.
Is provided, a large rotational torque can be applied to the mounting tool 2 by the rotary operating tool C during fine adjustment of the mounting angle. That is, a larger rotation torque can be applied than when the attachment 2 is rotated with a finger or the like. Therefore, before the mounting angle is finely adjusted, the mounting male screw 3 can be tightened with a relatively large tightening torque, so that when the mounting male screw 3 is finally strongly tightened, the mounting tool 2 does not rotate. Therefore, by using the mounting fixture 2, fine angle adjustment can be performed. Further, since the mounting fixture 2 has a simple structure in which the rotation engaging portion 28 is formed on the conventional mounting bracket, there is no possibility that the mounting mechanism becomes large or the cost is increased.

If the groove width W of the rotation engaging portion 28 shown in FIG. 1 is set to about 1.5 mm to 2.0 mm as in this embodiment, coins held by all persons can be rotated by the rotary operating tool C. Therefore, there is no possibility that the angle cannot be adjusted due to the absence of the rotary operation tool C.

Further, in this embodiment, the bent portions (the rising piece portion and the upper plate portion) 22 to 24 formed by bending the metal plate are cut out to increase the engagement depth D. Since C can be easily engaged with the rotation engaging portion 28, the workability of angle adjustment is good.

In the present invention, as shown in FIG. 3A, the metal plate is folded to form the mounting portion 25,
The engagement portion 28 for rotation may be formed in the overlapping portion 29 where the metal plate is overlapped doubly, and the engagement depth D may be larger than the thickness of the metal plate.

Further, the present invention is applicable to the case where 2
The present invention can also be applied to the mounting fixture 2 in which the V-groove 25a is formed in a thick metal plate to form the mounting portion 25.

FIG. 4 shows a second embodiment. In this embodiment, the attachment 2 is formed by cutting a metal. In the attachment 2, a columnar detector 1 is inserted into an attachment portion 25 formed of a through hole. A pair of first screw insertion portions 26 and 2 for fixing the mounting fixture 2 to the mounting location are provided on the mounting fixture 2.
7 and a second screw insertion portion 26 </ b> A for fixing the detector 1 to the fixture 2 are provided on the fixture 2.
A second mounting male screw 3A made of a set screw inserted toward the side surface of the detector 1 is screwed into the second screw insertion portion 26A. Note that the second mounting male screw 3A is attached to the mounting portion 25.
In this case, the detector 1 is fixed to the fixture 2.

The mounting fixture 2 and the detector 1 each include:
First and second rotation engaging portions 28, 28A are formed. The first rotation engaging portion 28 includes the first screw insertion portion 26,
With the first mounting male screw 3 inserted through 27 and the mounting tool 2 loosely fixed to the mounting location, the rotation operating tool C is engaged to rotate the mounting tool 2 in the direction of arrow A. .
On the other hand, the second rotation engaging portion 28A is provided with a second mounting male screw 3A inserted into the second screw insertion portion 26A, and the detector 1 is loosely fixed to the mounting fixture 2 in a rotating operation like a screwdriver. The detector 1 is engaged to rotate the detector 1 in the direction of arrow B.

As described above, by providing the first and second rotation engaging portions 28 and 28A, the mounting angle of the detector 1 can be adjusted not only in the arrow A direction but also in the arrow B direction.

FIG. 5A shows a third embodiment. The detector 1 of the present embodiment is a cylindrical proximity switch. The attachment 2 includes an attachment base 2a and a sandwiching member 2b. The mounting base 2a is formed in an L-shaped cross section by a base 2c having a pair of screw insertion portions 26 and 27 for inserting the mounting male screw 3 (FIG. 1), and a rising portion 2d rising from the base 2c. ing. The sandwiching member 2b is fixed to the rising portion 2d of the mounting base 2a by the assembled male screw 41, and also sandwiches the detector 1 with the rising portion 2d. A rotation engaging portion 28 is formed on the sandwiching member 2b.

In the present invention, the rotation engaging portion 28 may be formed on the detector 1 as shown in FIG.

FIG. 6 shows a fourth embodiment. In the present embodiment, the detector 1 is formed in a substantially rectangular parallelepiped. Fixture 2
6A shows the attachment main body 2A and the attachment main body 2A.
6 (b) sandwiching the detector 1 between the two. That is, the detector 1 is fixed to the mounting fixture 2 by the mounting main body 2A, the mounting auxiliary tool 2B, and the pair of second mounting external screws 3A, 3A penetrating the detector 1. 6A, a first rotation engaging portion 28 is formed on the fixture main body 2A, while the detector 1 is formed with a second rotation engaging portion 28A.

A pair of first screw insertion portions 26 and 27 for fixing the fixture 2 to the attachment location are provided in the fixture main body 2A.
And a pair of second screw insertion portions 26A, 27A for fixing the detector 1 to the fixture 2 are provided on two substantially orthogonal planes of the fixture main body 2A. First
The rotation engaging portion 28 engages the rotation operating tool C in a state where the first mounting male screws 3 and 3 are inserted through the first screw insertion portions 26 and 27 and the mounting tool 2 is loosely fixed to the mounting location. The mounting fixture 2
Is to rotate. On the other hand, the second rotation engaging portion 28A rotates while the detector 1 is loosely fixed to the fixture main body 2A by inserting the second mounting male screws 3A, 3A into the second screw insertion portions 26A, 27A. The operation tool C is engaged to rotate the detector 1.

In this embodiment, FIG.
As in the modified examples shown in FIGS. 7A and 7B, the second rotation engaging portion 28A may be formed on the mounting aid 2B.

In the present invention, the shape of the rotation engaging portion 28 is preferably a minus-shaped groove from the viewpoint that a general-purpose rotary operating tool C can be used. However, in the present invention, the shape of the rotary operation tool C may be a plus-shaped groove in FIG.
In addition to the holes having various shapes as shown in FIGS.
The projections may have various shapes as shown in (d) to (g). In the present invention, "groove" does not matter whether there is a bottom or not, that is, does not matter whether it is a through hole or a non-through hole, and has a length longer than the groove width. Say.

In the present invention, the rotation engaging portion 28
9 (a), the rotary operation tool C to be engaged with
In addition to the minus driver as shown in FIG.
As shown in (c) and (d), various types can be used according to the shape of the first rotation engaging portion 28. In addition, the present invention does not limit the direction in which the rotary operating tool C is inserted into the rotary engaging portion 28 as shown in FIGS. 9 (a) and 9 (b).

In each of the above embodiments, the detector has been described as an example. However, the present invention is also applicable to a directional measuring device such as a laser distance meter.

[0029]

As described above, according to the present invention,
With the mounting male screw loosely fixed to the mounting location by inserting the mounting male screw into the screw insertion part, by engaging the rotation operating tool with the rotating engagement part, and rotating the detector etc. with the mounting tool, The mounting angle of the detector and the like can be finely adjusted. That is, since the mounting fixture is provided with the rotation engaging portion, a large rotational torque can be applied to the mounting tool by the rotary operation tool when the mounting angle is finely adjusted. That is, a larger rotation torque can be applied than when the attachment is rotated with a finger or the like. Therefore, before the fine adjustment of the mounting angle, the mounting male screw can be tightened with a relatively large tightening torque, so that the mounting tool does not rotate when finally tightening the mounting male screw strongly. Therefore, fine angle adjustment can be performed by using this mounting fixture. Further, since the present invention can be realized with a simple configuration in which only the rotation engaging portion is added, there is no possibility that the mounting mechanism becomes large or the cost is increased.

Further, if the rotation engaging portion is formed as a groove of about 1.5 mm to 2.0 mm, a coin can be used as a rotary operation tool, and therefore, the angle cannot be adjusted because there is no rotary operation tool. There is no danger.

Further, if a turning portion is formed by cutting out a bent portion obtained by bending a metal plate or a double portion formed by overlapping a metal plate, even if the metal plate is a thin metal plate, the rotation engaging portion can be formed. Since the depth of the joint portion, that is, the engagement depth can be increased, the workability of angle adjustment is improved.

If a second rotation engaging portion is provided in addition to the first rotation engaging portion, the angle can be adjusted in two different directions (two-dimensionally along two planes). .

[Brief description of the drawings]

FIG. 1 is an exploded enlarged perspective view showing a mounting structure according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a mounting method.

FIG. 3 is an enlarged perspective view showing a modified example of the attachment.

FIG. 4 is an enlarged perspective view of a fixture showing a second embodiment.

FIG. 5 is an enlarged perspective view of a fixture showing a third embodiment and its modification.

FIG. 6 is an enlarged perspective view of a fixture showing a fourth embodiment.

FIG. 7 is an enlarged perspective view of a fixture showing a modification.

FIG. 8 is an enlarged perspective view showing a modification of the rotation engaging portion.

FIG. 9 is an enlarged perspective view showing a modification of the rotary operation tool and the like.

FIG. 10 is an enlarged perspective view and a side view showing a conventional technique.

[Explanation of symbols]

 1: Detector 2: Mounting tools 26, 27: Screw insertion part 28: First rotation engagement part 3: Mounting male screw D: Engagement depth W: Groove width 26A, 27A: Second screw insertion part 28A: Second rotation engaging portion 3A: second mounting male screw

Claims (16)

[Claims] 1. A mounting device for mounting a detector or a measuring device, wherein a pair of screw insertion portions for fixing the detector or the measuring device to a mounting portion via the mounting device is formed, A mounting tool provided with a rotation engaging portion for engaging a rotary operation tool and rotating the mounting tool together with the detector or the measuring instrument in a state where the mounting male screw is inserted through the screw insertion section. 2. The mounting tool according to claim 1, wherein the rotation engaging portion is formed in a groove shape. 3. The fixture according to claim 2, wherein the width of the groove-shaped rotation engaging portion is set to 1.5 mm or more and 2.0 mm or less. 4. The fixture according to claim 1, wherein the metal plate is formed by bending. 5. The mounting tool according to claim 4, wherein the rotation engaging portion is formed in a groove shape by notching the metal plate. 6. The fixture according to claim 5, wherein an engagement depth of the groove-shaped rotation engagement portion is set to be larger than a thickness of the metal plate. 7. The attachment according to claim 5, wherein the groove-shaped rotation engaging portion is formed by notching a bent portion obtained by bending the metal plate. 8. The mounting device according to claim 5, wherein the groove-shaped rotation engaging portion is formed by cutting out the overlapping portion where the metal plate is doubly overlapped. 9. The fixture according to claim 1, wherein the rotation engaging portion is formed at a position between the pair of screw insertion portions. 10. A mounting mechanism in which a pair of screw insertion portions for fixing a detector or a measuring device to a mounting portion is formed on a mounting tool, wherein a male screw is inserted through each of the pair of screw insertion portions. A mounting mechanism in which a rotation engaging portion for engaging a rotary operation tool and rotating the detector or the measuring instrument together with the mounting tool is formed on the detector or the measuring instrument. 11. A mounting mechanism for fixing a detector or a measuring instrument to a mounting location via a mounting tool, comprising: a pair of first screw insertion portions for fixing the mounting tool to the mounting location; Alternatively, a second screw insertion portion for fixing the measuring instrument to the mounting device is provided on the mounting device, and the rotation operating tool is mounted in a state where the first mounting male screw is inserted into each of the pair of first screw insertion portions. A first rotation engaging portion for engaging the first mounting member to rotate the mounting member with respect to a mounting portion is formed on the mounting member, and a second mounting male screw is inserted through the second screw insertion portion. A second rotation engaging portion for engaging the rotation operating tool and rotating the detector or the measuring instrument with respect to the mounting tool,
An attachment mechanism formed on the detector or the measuring instrument. 12. A mounting mechanism for fixing a detector or a measuring instrument to a mounting location via a mounting tool, comprising: a pair of first screw insertion portions for fixing the mounting tool to the mounting location; Alternatively, a pair of second screw insertion portions for fixing the measuring instrument to the fixture are provided on two planes orthogonal to each other in the fixture, and a first mounting male screw is respectively provided in the pair of first screw insertion portions. A first rotation engaging portion for engaging the rotary operating tool to rotate the mounting tool relative to the mounting portion in a state where the second mounting male and the second screw inserting portions are respectively inserted. A second rotation engaging portion for engaging a rotary operation tool and rotating the detector or the measuring instrument with respect to the mounting tool with the screw inserted, the mounting tool, the detector or the measuring device; The mounting mechanism formed on. 13. The mounting tool according to claim 12, wherein the mounting tool has the first and second screw insertion portions, and a mounting aid that sandwiches the detector or the measuring device between the mounting tool main body. A mounting mechanism in which the first rotation engaging portion is formed on the mounting fixture main body, while the second rotation engaging portion is formed on the mounting auxiliary tool. 14. The mounting mechanism according to claim 10, wherein the rotation engaging portion is formed in a groove shape. 15. The mounting mechanism according to claim 14, wherein the width of the groove-shaped rotation engaging portion is set to be 1.5 mm or more and 2.0 mm or less. 16. The mounting tool or the mounting device according to claim 1, wherein the pair of screw insertion portions is formed by a through hole or a notch hole that is formed to be long in two directions substantially orthogonal to each other. mechanism.