JPH0753050Y2 - Angle adjustment mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an angle adjusting mechanism for adjusting an angle of elevation and an angle of elevation in a device having an optical axis such as an optical repeater.

[Prior Art and its Defects] Conventionally, as for the angle adjusting mechanism of the angle of elevation and the angle of elevation of a device having an optical axis such as an optical repeater, for example, as shown in FIG. A fulcrum corresponding to the range depending on the angle
Oblong holes 13a and 13b centering on 12a and 12b are provided, and they are fixed by tightening with bolts or the like in accordance with arbitrary set positions.

However, in such a structure, the movable long hole 13
Since it is fixed at any place within the range of a and 13b, it is not suitable for fine angle adjustment.

In addition, as another method, there is a structure in which a gear or the like is applied to enable fine adjustment, but the structure becomes complicated due to the large number of constituent parts, which is inconvenient to apply to general-purpose products. Met.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide an angle adjusting mechanism having a simple structure and capable of accurately adjusting an inclination angle and an elevation angle. .

[Points of the Invention] The present invention is an angle adjusting mechanism for adjusting the angle of elevation and the angle of elevation of an apparatus that requires angle setting by optical axis alignment, and a fixing plate bent in a U shape and the above-mentioned upper surface. A movable plate to which equipment is attached and whose both side walls are slidable along both side walls of the fixed plate and is rotatable, a screw hole provided at a position serving as a fulcrum of rotation of the movable plate, and this hole A fulcrum portion formed of screwed setting bolts, a bolt hole formed on the upper surface of the movable plate at a predetermined distance from the fulcrum portion, and an angle adjusting bolt inserted into the bolt hole. A movable pin having a screw hole that is fixed to the fixing plate and that is screwed into the thread portion of the angle adjusting bolt. The angle and elevation can be set with high accuracy.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 21 is, for example, a main body of an optical repeater which requires an angle setting by optical axis alignment. This device body 21 is a movable plate formed by a U-shaped metal fitting by welding or screws.
It is fixed to the upper surface of 22 and the device body 21 is a movable plate.
It is adapted to be attached to a fixed plate 25 via setting bolts 23 and 24 via 22. The fixed plate 25 is formed by a U-shaped metal fitting like the movable plate 22, and the movable plate 22 is formed by the fixed plate 25.
And an inner wall surface at both ends thereof can slide along outer wall surfaces at both ends of the fixed plate 25 by an angle adjusting mechanism 33 described later. The position of the setting bolt 23 is a position serving as a fulcrum for setting the angle of elevation and the angle of elevation of the device body 21. As shown in FIG. 3, the holes into which the setting bolts 24 are inserted are elongated holes 26 on the movable plate 22 side and screw holes 27 on the fixed plate 25. The setting bolt 24 is a fixing bolt that has an auxiliary role of preventing positional displacement due to vibration, impact, etc. when set at an arbitrary desired angle.

When adjusting the angle of elevation and elevation, first set the setting bolts 23 and 24 to the movable plate 2.
The fixing plate 25 and the fixing plate 25 are tightened so that they can be easily moved, and when the setting by the angle adjusting mechanism 33 for the tilt angle and the elevation angle, which will be described later, is completed, they are tightened and fixed.

FIG. 2 shows the structure of the angle adjusting mechanism 33 for the angle of elevation and the angle of elevation which is the subject of the present invention. In the figure, the device body
An angle adjusting hole is provided at the center of the front surface of the movable plate 22 fixed to 21.
28 is provided, and an angle adjusting bolt 29 such as a hexagon bolt is attached to the hole 28. The size of the angle adjusting hole 28 is slightly larger than the effective screw diameter of the angle adjusting bolt 29. A fixed washer 30 is attached to the lower surface side of the movable plate 22 so as to rotate coaxially with the angle adjusting bolt 29. The fixed washer 30 is a point of action when the movable plate 22 is moved upward, that is, when the elevation angle direction is set.

On the other hand, on the fixed plate 25, a movable pin 32 having a bending hole corresponding to the screw diameter and the screw pitch of the angle adjusting bolt 29 via the movable pin mounting member, that is, the movable pin fixing plate 31, is attached to the movable plate 22. It is attached so that it can rotate in the same direction as the rotation direction.
An angle adjusting bolt 29 is screwed into the movable pin 32. The outer peripheral shape of the portion of the movable pin 32 where the screw hole is provided may be round or square, but a square rod is most suitable in consideration of processing the screw hole.

Next, the operation of the angle adjusting mechanism 33 will be described. Here, the angle adjusting bolt 29 may be a right-handed screw or a left-handed screw, but in the present description, the right-handed screw will be limitedly described. That is, when the angle adjusting bolt 29 is rotated clockwise, the movable plate 22 and the fixed plate 25 act so as to approach each other, and the device body 21 moves so that the corners act. On the contrary, when it is rotated counterclockwise, the movable plate 22 and the fixed plate 25 act so as to move away from each other, and the device body 21 moves so that the elevation angle acts. As a result, the angle adjustment bolt 29
Is rotated to the right or left, so that the device main body 21 can set the hump or elevation angle.

At this time, the angle adjusting bolt 29 and the bolt 29 can adjust the precision of the fine adjustment mechanism by appropriately setting the screw pitch of the corresponding movable pin 32. That is, when the fine pitch is used, the angle adjustment bolt 29
The movable width of the angle of elevation and the angle of elevation corresponding to the rotation is small,
On the contrary, when the pitch is made thicker, the movable widths of the angle of elevation and the angle of elevation are also increased. Further, when the angle adjustment bolt 29 is rotated to adjust the angle, the movable pin 32 rotates even if the bolt 29 is displaced together with the movable plate 22 and the angle between the bolt 29 and the fixed plate 25 is not a right angle. By doing so, the bolt 29 and the movable pin 32 are always held at a right angle. As a result, the bolt 29 can be smoothly rotated, very high accuracy can be obtained, and the angle adjustment range can be widened.

As described above, according to the present invention, in an apparatus such as an optical repeater that requires adjustment of the angle of elevation and the angle of elevation, the angle adjustment bolt 29 can be simply rotated by using a tool such as a box driver. Fine adjustment of the angle of elevation or the angle of elevation corresponding to the screw pitch of the bolt 29 can be easily performed with a simple structure.

As a specific example, if the distance between the center of the setting bolt 23 and the center of the angle adjusting bolt 29 is 200 mm, and the screw pitch of the angle adjusting bolt 29 is 0.5 mm, the angle adjusting bolt 2
The angle θ of the elevation angle or elevation angle obtained by one rotation of 9 is θ = tan ⁻¹ 0.5 / 200 = 0.159 °.

Therefore, it is an optimal adjustment mechanism for equipment that requires fine adjustment within a range of about ± 2 °.

[Advantages of the Invention] As described above, according to the present invention, since it is possible to finely adjust the angle of elevation and the elevation angle with a simple configuration, an angle adjusting mechanism suitable for optical axis alignment of an optical repeater or the like. Can be provided. Further, in the present invention, since the angle adjusting bolt and the movable pin that is rotatably provided are screwed together, even if the angle adjusting bolt is displaced due to the angle adjustment, the movable pin rotates and the angle is changed. The angle adjustment bolt is always perpendicular to the adjustment bolt, and as a result, the angle adjustment bolt can be smoothly rotated, very high accuracy can be obtained, and the angle adjustment range can be widened.

[Brief description of drawings]

1 is a perspective view showing a structure of an angle adjusting mechanism according to an embodiment of the present invention, FIG. 2 is a sectional view of the same, and FIG. 3 is an exploded perspective view showing a portion A of FIG. 1 taken out. The figure is a perspective view showing a conventional angle adjusting mechanism. 21 …… main body, 22 …… movable plate, 25 …… fixed plate, 29 ……
Angle adjusting bolt, 32 ...... Movable pin, 33 ...... Angle adjusting mechanism.

Claims (1)

[Scope of utility model registration request] 1. An angle adjusting mechanism for adjusting an inclination angle and an elevation angle of an apparatus which requires an angle setting by optical axis alignment,
A fixed plate bent in a U-shape, a movable plate on which the device is mounted on the upper surface and both side walls of which are slidable and rotatable along both side walls of the fixed plate, and a rotating plate of the movable plate. For a fulcrum part consisting of a screw hole provided at a position serving as a fulcrum of movement and a setting bolt screwed into the hole, and for a bolt formed on the upper surface of the movable plate at a predetermined distance from the fulcrum part. A hole,
An angle adjusting bolt that is inserted into the bolt hole and a screw hole that is screwed into a screw portion of the angle adjusting bolt are provided, and the rotating direction of the movable plate is fixed to the fixed plate via a movable pin mounting member. An angle adjusting mechanism comprising: a movable pin rotatably attached in the same direction as the above, and a fixed washer attached to the angle adjusting bolt so as to support the lower surface side of the movable plate.