JP3914698B2 - Centering structure of cylindrical object - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cylindrical object centering structure that can be applied to optical axis adjustment of a laser pointer used in a laser distance measuring device.
[0002]
[Prior art]
Conventionally, for adjusting the optical axis of a laser pointer disposed in a laser distance measuring device, for example, a centering structure as shown in FIGS. 5 and 6 is employed.
[0003]
In this laser pointer centering structure, the laser pointer 6 is held by adjusting screws 4, 4 a, 4 b, 5, 5 a, 5 b through cylindrical holders 1, 2 attached to the front and rear of the laser pointer 6, In adjusting the optical axis, the adjustment screws 4a, 4b, 5a and 5b are loosened to move the laser pointer 6 forward and backward, and conversely, the adjustment screws 4 and 5 are loosened and the adjustment screws 4a, 4b and 5a. By tightening 5b, the front and rear of the laser pointer 6 are moved vertically upward.
[0004]
Further, in adjusting the horizontal position of the laser pointer 6, the adjustment screws 4a, 5a or the adjustment screws 4b, 5b are loosened and the adjustment screws 4b, 5b or the adjustment screws 4a, 5a are tightened.
[0005]
Further, when angle adjustment is required, the front adjustment screws 5, 5a and 5b are loosened, and the angle of the laser pointer 6 is adjusted by pushing and pulling the rear adjustment screws 4, 4a and 4b.
[0006]
[Problems to be solved by the invention]
However, in the conventional laser pointer centering structure, adjustment must be performed from three directions. Therefore, when the laser pointer is incorporated in the laser distance measuring device, the adjustment screws 4, 4a, 4b, 5, 5a, and 5b are provided. There was a problem that the optical axis could not be adjusted because it was behind other components.
[0007]
Therefore, the present invention has been made in view of the problems in the above-described conventional laser pointer centering structure and the like, and can be used to easily center a cylindrical object such as a laser pointer. The object is to provide a feeding structure.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a centering structure of a cylindrical object, wherein the first elastic body holding one end of the cylindrical object and the other end of the cylindrical object are held. And a block having a female screw portion, an adjustment screw that is screwed into the female screw portion of the block, an insertion hole that is interposed between a screw head of the adjustment screw and the block, and through which the adjustment screw can be inserted. A cover having an internal thread portion on both sides across the insertion hole, a second elastic body interposed between the cover and the screw head of the adjustment screw, and the internal thread portion of the cover A push screw is provided.
[0009]
And according to invention of Claim 1, with the 1st elastic body holding one end of a cylindrical object as a fulcrum, by adjusting the adjustment screw and push screw with which the other end of the cylindrical object was equipped, Since the cylindrical object can be centered in the horizontal direction and the vertical direction, the cylindrical object can be easily centered from only one direction.
[0010]
The invention according to claim 2 is a centering structure for a cylindrical object, wherein the holding part for holding the cylindrical object, a block having an internal thread part, and an adjustment screw screwed into the internal thread part of the block An insertion hole that is interposed between the screw head of the adjustment screw and the block, through which the adjustment screw can be inserted, a cover having female screw portions at two locations across the insertion hole, and the cover and the adjustment A holding structure including a second elastic body interposed between a screw head of the screw and a push screw screwed into the female screw portion of the cover is disposed at both ends of the cylindrical object. And
[0011]
According to the second aspect of the present invention, the adjustment screw and the push screw of the other holding structure arranged at the other end of the cylindrical object are adjusted with the one holding structure arranged at one end of the cylindrical object as a fulcrum. Therefore, the cylindrical object can be centered in the horizontal direction and the vertical direction, so that the cylindrical object can be easily centered only from one direction and the holding structure of both ends of the cylindrical object can be achieved. By adjusting, adjustment with a larger angle is possible, and the adjustment range of the cylindrical object can be expanded.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, a specific example of an embodiment of a cylindrical object centering structure according to the present invention will be described with reference to the drawings. Here, the case where the cylindrical object centering structure according to the present invention is applied to the optical axis adjustment of the laser pointer disposed in the laser distance measuring device will be described.
[0013]
1 to 4 show the centering structure of a laser pointer according to the present invention. The centering structure of the laser pointer is provided on an elastic body 10, a block 9 having an internal thread portion 9a, and an internal thread portion 9a of the block 9. The adjusting screw 12 to be screwed, the cover 8 interposed between the screw head of the adjusting screw 12 and the block 9, and the second elasticity interposed between the cover 8 and the screw head of the adjusting screw 12. It comprises a disc spring 11 as a body and push screws 13 and 14 etc. that are screwed into the female screw portions 8a and 8b of the cover 8.
[0014]
As shown in FIG. 3, the laser pointer 6 is disposed in the laser distance measuring device in a state surrounded by a base 7 and a cover 8.
[0015]
The elastic body 10 is held by the base 7 and supports the left end portion of the laser pointer 6. Thereby, the laser pointer 6 can be rotated with the elastic body 10 as a fulcrum.
[0016]
As shown in FIG. 2, the rectangular parallelepiped block 9 is fixed to the right end portion of the laser pointer 6 by push screws 15 and 16 which are screwed into the female screw portions 9 b and 9 c. The adjusting screw 12 is screwed into the female screw portion 9a.
[0017]
The adjustment screw 12 is inserted through the insertion hole 8 a of the cover 8 and screwed into the female screw portion 9 a of the block 9. A disc spring 11 is disposed between the screw head of the adjustment screw 12 and the cover 8, and the block 9 is urged downward by the disc spring 11 via the press screws 13 and 14.
[0018]
The cover 8 is disposed between the screw head of the adjustment screw 12 and the upper surface of the block 9, and the press screws 13 and 14 are screwed into the female screw portions 8 b and 8 c. The lower ends of the push screws 13 and 14 are in contact with the upper surface of the block 9.
[0019]
Next, the operation of the centering structure of the laser pointer having the above configuration will be described.
[0020]
As shown in FIGS. 1 to 3, the laser pointer 6 is adjusted via a disc spring 11 in the same direction from the laser irradiation side held by the base 7 via the elastic body 10 as a fulcrum. By adjusting by pushing and pulling the screw 12 and the push screws 13 and 14, the optical axis of the laser pointer 6 is adjusted in the horizontal and vertical directions.
[0021]
When performing the adjustment in the vertical direction, as shown in FIG. 4A, when the adjustment screw 12 is loosened and the push screws 13 and 14 are tightened evenly, the block 9 moves downward and the light of the laser pointer 6 The axis moves above the initial value.
[0022]
As shown in FIG. 4B, when the set screws 13 and 14 are loosened and the adjusting screw 12 is tightened, the block 9 moves upward and the optical axis of the laser pointer 6 moves downward from the initial value. .
[0023]
When adjusting in the horizontal direction, as shown in FIG. 4C, when the set screw 14 is loosened and the set screw 13 is tightened, the block 9 arcs around the contact portion between the adjusting screw 12 and the disc spring 11. The optical axis of the laser pointer 6 moves to the side of the push screw 13 in the lateral direction from the initial value.
[0024]
Similarly, as shown in FIG. 4 (d), when the push screw 13 is loosened and the push screw 14 is tightened, the block 9 pushes the push screw so as to draw an arc around the contact portion between the adjustment screw 12 and the disc spring 11. The optical axis of the laser pointer 6 moves to the push screw 14 side from the initial value.
[0025]
As described above, the optical axis of the laser pointer 6 is adjusted to match the optical axis to be measured. At this time, the disc spring 11 removes the backlash at the time of adjusting the push screws 13 and 14 due to its elasticity to facilitate adjustment.
[0026]
In the above embodiment, in order to fix the laser irradiation position to a specific range, the laser irradiation side of the laser pointer 6 is held as a fulcrum, but the laser irradiation side opposite to the laser pointer 6 is blocked as a fulcrum. 9 can be attached, and the same effect can be obtained.
[0027]
Further, the same effect can be obtained even if the blocks 9 are attached to both the laser irradiation side and the opposite side, and the adjustment screw 12 and the push screws 13 and 14 are arranged on each block 9, and the front and rear of the laser pointer 6 can be adjusted. Therefore, the angle can be given by the laser pointer 6 and the adjustment range can be expanded.
[0028]
As described above, since the laser can be easily adjusted from one direction by the above configuration, it can be applied not only to mounting on a laser device but also as a laser optical axis adjustment structure. In particular, when work in a high place and a closed space is required, its usefulness is utilized.
[0029]
In addition, the disc spring 11 in the said Example can also be replaced with components which have elasticity, such as a coil spring.
[0030]
The cylindrical object centering structure according to the present invention can be applied not only to the adjustment of the optical axis of the laser pointer 6 but also to a cylindrical part such as a sighting rifle scope.
[0031]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a cylindrical object centering structure capable of easily centering a cylindrical object such as a laser pointer.
[Brief description of the drawings]
1A and 1B are diagrams showing an embodiment of a cylindrical object centering structure according to the present invention, in which FIG. 1A is a top view and FIG. 1B is a front view;
FIG. 2 is a cross-sectional view taken along line BB in FIG.
3 is a cross-sectional view taken along the line CC in FIG. 1. FIG.
4 is a view for explaining the operation of the laser pointer to which the cylindrical object centering structure of FIG. 1 is applied, and is a cross-sectional view corresponding to the cross-sectional view taken along the line BB of FIG. .
FIG. 5 is a side view showing an example of a conventional laser pointer centering structure.
6 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 2 Holder 3 Base 4, 5 Adjustment screw 6 Laser pointer 7 Base 8 Cover 8a Insertion hole 8b, 8c Female thread part 9 Block 9a-9c Female thread part 10 Elastic body 11 Disc spring 12 Adjustment screw 13-16 Push screw 17-20 Fixing screw

Claims (2)

A first elastic body that holds one end of the cylindrical object;
While holding the other end of the cylindrical object, and a block having a female screw part,
An adjustment screw screwed into the female thread portion of the block;
An insertion hole interposed between the screw head of the adjustment screw and the block, through which the adjustment screw can be inserted, and a cover having female screw portions on both sides across the insertion hole;
A second elastic body interposed between the cover and the screw head of the adjusting screw;
A centering structure for a cylindrical object, comprising a push screw screwed into the female screw portion of the cover. A holding portion for holding a cylindrical object, a block having a female screw portion,
An adjustment screw screwed into the female thread portion of the block;
An insertion hole interposed between the screw head of the adjustment screw and the block, through which the adjustment screw can be inserted, and a cover having female screw portions at two locations across the insertion hole;
A second elastic body interposed between the cover and the screw head of the adjusting screw;
A cylindrical object centering structure characterized in that a holding structure including a push screw screwed into the female thread portion of the cover is disposed at both ends of the cylindrical object.

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