JP3182594U - Support stand for optical equipment for supporting optical equipment including equator - Google Patents

Abstract

The present invention provides a support base for an optical device in which the precision of fine adjustment of the position and angle of the optical device including an equator is improved.
A base member 102 serving as a base for support, an end member 104 to which an optical device is attached, and a plurality of adjustment rods 106 that connect the base member 102 and the end member 104 and can be extended and contracted independently. And an optical device support base 100 to which a parallel mechanism capable of changing the relative position and angle between the base member 102 and the end member 104 is applied.
[Selection] Figure 1

Description

  The present invention relates to an optical device support for supporting an optical device including an equator.

  When photographing or observing an object with an optical device such as a camera or a telescope, the optical device may be attached to a tripod or the like to be stably fixed. On the tripod, an optical device support for finely adjusting the position and angle of the optical device is used.

  Also, telescopes used for astronomical observation may be used with an equator for tracking the celestial bodies. In order to support such an optical device including the equator and finely adjust its position and angle, a stage using a push-pull screw and an adjustment support base using a gear mechanism are used.

  By the way, when a stage using a push-pull screw is applied as a support base that enables fine adjustment of heavy optical equipment such as a telescope including an equatorial mount, there is no risk of deviation when fixing after adjustment. Also, structurally suitable for moving heavy equipment. However, there is a problem that the operability is poor and the weight of the support base itself is increased due to the structure.

  On the other hand, the adjustment support base using the gear mechanism is excellent in operability, but it is difficult to make fine adjustment with the accuracy required for the equatorial mount due to the backlash of the gear in the structure made inexpensively. It is.

  Therefore, it is possible to reduce the size and weight of the structure, and the position and angle adjustment deviation due to backlash is small, so that the position and angle of optical equipment including the equator can be finely adjusted with high accuracy. An equipment support is desired.

  One aspect of the present invention includes a base member serving as a base for support, an end member to which an optical device is attached, a plurality of adjustment rods that connect the base member and the end member, and can be independently expanded and contracted, And a support base for an optical device for supporting an optical device including an equator, to which a parallel mechanism capable of changing a relative position and an angle between the base member and the end member is applied.

  Here, it is preferable that the adjustment rod has an angle changing mechanism between the base member and the end member, and the hardness of the angle changing mechanism is adjustable.

  In addition, the angle changing mechanism includes a spherical body at a tip portion of the adjustment rod, and a sitting tool that contacts the spherical body provided on the base member or the end member, and the spherical body and the seating surface. It is preferable that the contact pressure can be adjusted.

  Further, the adjustment rod is configured by combining a connection rod having a thread on the outer periphery of the end portion and a connection pipe having a thread to be fitted to the connection rod on the inner surface of the cylindrical end portion. It is preferable that at least one thread of the connection pipe is formed by rolling.

  ADVANTAGE OF THE INVENTION According to this invention, the support stand for optical devices which supports the optical device containing an equatorial mount which enables the fine adjustment of the position and angle of an optical device with a simple structure can be provided.

It is a perspective view which shows the whole structure of the support stand for optical devices in embodiment of this invention. It is a top view which shows the structure of the base member in embodiment of this invention. It is sectional drawing which shows the structure of the base member in embodiment of this invention. It is a top view which shows the structure of the end member in embodiment of this invention. It is a side view which shows the structure of the end member in embodiment of this invention. It is a top view which shows the structure of the attachment jig in embodiment of this invention. It is a side view which shows the structure of the attachment jig in embodiment of this invention. It is an assembly drawing of the support stand for optical devices in embodiment of this invention. It is an exploded view of the support stand for optical devices in embodiment of this invention. It is a top view of the 1st screw in an embodiment of the invention. It is a top view of the 2nd screw in an embodiment of the invention.

  As shown in the perspective view of FIG. 1, the optical instrument support 100 in the embodiment of the present invention is configured by combining a base member 102, an end member 104, and an adjustment rod 106. In the present embodiment, an example in which three adjustment rods 106 are provided will be described. However, the present invention is not limited to this, and a plurality of adjustment rods 106 may be provided.

  The base member 102 is a member that is the basis of the optical equipment support base 100. The base member 102 is attached to a tripod or the like, or placed on a table or the like, and supports the end member 104 and the adjustment rod 106. The base member 102 is formed of a material having a strength capable of mechanically supporting an optical device such as a metal material or plastic.

  In the optical equipment support base 100 of the present embodiment, the base member 102 is a disk-shaped flat plate as shown in the plan view of FIG. 2 and the cross-sectional view of FIG. 3 is a cross-sectional view taken along line AA in FIG. The shape and size of the base member 102 may be determined according to the usage mode of the support stand 100 for optical equipment. Further, when the base member 102 is used while being fixed to a tripod or the like, it is preferable to provide a fixing member. For example, the tap hole 10 for fixing to a tripod etc. in the base member 102 is provided.

  The base member 102 is provided with an attachment hole 12 for attaching the adjustment rod 106. The attachment holes 12 are provided in a number corresponding to the adjustment rod 106. The attachment of the adjustment rod 106 will be described later.

  The end member 104 is a member to which an optical device is attached. The end member 104 has a structure for attaching an optical apparatus directly or indirectly. The end member 104 is formed of a material having a strength capable of mechanically supporting an optical device such as a metal material or plastic.

  In the optical instrument support 100 of the present embodiment, the end member 104 is a disk-shaped flat plate as shown in the plan view of FIG. 4 and the cross-sectional view of FIG. An optical device such as a camera or a telescope can be attached to the end member 104. It is preferable that the surface on which the optical device is attached is a flat surface and a fixing member for attachment is provided.

  For example, a circular hole 22 may be provided in the center of the end member 104, and an attachment jig 26 for attaching an optical device may be provided there as shown in the plan view of FIG. 6 and the cross-sectional view of FIG. The outer diameter of the mounting jig 26 is slightly smaller than the inner diameter of the hole 22, and the mounting jig 26 is fitted into the hole 22 and attached by screwing from the side using the screw hole 24. By making the mounting jig 26 attachable, it is possible to firmly fix the optical device to the optical device support base 100 using the screw holes 28. Further, by making the mounting jig 26 circular, coarse adjustment of the orientation of the optical device can be performed. This makes it possible to roughly adjust the position of the optical device before fine adjustment when performing an operation such as aligning the optical device including the equator with the polar axis.

  Further, the end member 104 is provided with an attachment hole 20 for attaching the adjustment rod 106. The number of attachment holes 20 is provided according to the number of adjustment rods 106. The attachment of the adjustment rod will be described later.

  In addition, as long as the rigidity required for the base member 102 and the end member 104 can be maintained, the base member 102 and the end member 104 may be made lighter by making a hole or the like.

  The adjustment rod 106 connects the base member 102 and the end member 104 and can extend and contract its length, and is provided to adjust the relative position and angle between the base member 102 and the end member 104. That is, the base member 102 and the end member 104 are connected in parallel by the plurality of adjusting rods 106 to constitute a parallel mechanism.

  The optical instrument support 100 in the present embodiment constitutes a Stewart platform type parallel mechanism in which a plurality of adjustment rods 106 can be extended and contracted independently. However, the present invention is not limited to this, and other forms of parallel mechanisms may be adopted as long as the structure can be simplified to a necessary level.

  Next, the connection between the base member 102 and the end member 104 by the adjusting rod 106 will be described. FIG. 8 is an assembly view showing the connection between the base member 102 and the end member 104 by the adjusting rod 106, and FIG. 9 is an exploded configuration view thereof. In FIGS. 8 and 9, a part is shown as a cross-sectional view in order to clearly show the assembled state.

  In the present embodiment, the adjustment rod 106 includes the connection pipe 30, the connection rod 32, the first screw 34, and the second screw 36. The connection pipe 30 is a cylindrical member. A thread 30a is provided on the outer periphery on one end side, and the inner periphery on the other end side is a tap hole 30b. The connecting rod 32 is a rod-shaped member, and a thread 32a that matches the tap hole 30b is provided on the outer periphery of one end, and a spherical body 32b having a spherical shape is provided on the other end. The thread 32a is provided according to the length of expansion and contraction required for the adjustment rod 106.

  Such a connection pipe 30 and a connection rod 32 are combined by fitting a screw thread 32a into the tap hole 30b. In such a configuration, the entire length of the adjustment rod 106 can be adjusted by relatively rotating the connection pipe 30 and the connection rod 32.

  Here, it is preferable that at least the thread 32a of the connecting rod 32 is formed by rolling. In the optical device support base 100, the precision of the expansion and contraction of the adjustment rod 106 is important. By forming the thread 32a of the connecting rod 32 by rolling, the thread 32a can be formed with higher accuracy, and the connection Shaking with the pipe 30 can be suppressed. That is, in normal thread cutting (thread cutting using a die, etc.), the cutting surface becomes rough, and it is easy to be caught with the movement of the screw, resulting in uneven operability when fine-tuning the optical instrument, Adjustment to an appropriate position and angle becomes difficult. Increasing the tolerance between screws in order to mislead such a catch increases rattling and lowers the precision of fine adjustment. The rolled screw has no surface roughness like cutting, and can be moved smoothly even if the tolerance is reduced. Thereby, adjustment of the position and angle of the support stand 100 for optical devices can be realized with high accuracy.

  It is preferable to provide a structure that prevents the connection pipe 30 and the connection rod 32 from being detached. For example, when the notch 32 c is provided around the tip of the connecting rod 32 on the thread 32 a side and the connecting rod 32 is inserted into the connecting pipe 30, the connecting pipe 30 is larger than the inner diameter of the tap hole 30 b. A washer smaller than the inner diameter of the upper cylinder is attached to the notch 32c. Accordingly, it is possible to prevent the connection rod 32 from being detached from the connection pipe 30 when the adjustment rod 106 is extended.

  In order to allow the user to easily rotate the connecting rod 32, it is preferable to provide the first screw 34 and the second screw 36. The first screw 34 has a larger outer diameter than the connecting rod 32 and has a tapped hole 34 a that matches the thread 32 a of the connecting rod 32. The first screw 34 is attached to the thread 32 a of the connecting rod 32 by the tap hole 34 a. Furthermore, a tap hole 34b may be provided on the side surface of the first screw 34, and the first screw 34 may be fixed to the side portion of the connecting rod 32 with a screw. Since the first screw 34 has a larger outer diameter than the connection rod 32, the user can turn the connection rod 32 with a smaller force than turning the connection rod 32 directly by turning the first screw 34. In addition, as shown in the top view of FIG. 10, the unevenness | corrugation may be provided in the outer periphery of the 1st screw | thread 34, and a user's finger | toe may be hard to slip.

  As shown in the plan view of FIG. 11, the second screw 36 has a larger outer diameter than the connection rod 32, and has a tapped hole 36 a that matches the thread 32 a of the connection rod 32. The second screw 36 is attached to the thread 32 a of the connecting rod 32 by the tap hole 36 a. By tightening the first screw 34 and the second screw 36, it is possible to suppress the shakiness after fine adjustment and fix the optical apparatus more firmly.

  Next, the connection between the adjustment rod 106, the base member 102, and the end member 104 will be described.

  The connection pipe 30 is connected to the end member 104. The attachment hole 20 of the end member 104 is a tapped hole that matches the thread 30a of the connection pipe 30, and the connection pipe 30 is fitted into the attachment hole 20 and fixed.

  On the other hand, the connecting rod 32 is connected to the base member 102. The connecting rod 32 is passed through the hole of the spherical seat 38 from the side where the thread 32 a is provided, and the surface of the spherical body 32 b is in contact with the spherical seating surface 38 a of the first spherical seat 38. The spherical body 32b of the connecting rod 32 is in contact with the spherical seating surface 40a of the second spherical seating tool 40 and is sandwiched between the first spherical seating tool 38 and the second spherical seating tool 40. . In such a state, the presser screw 42 that is passed from the thread 32a side of the connecting rod 32 to the mounting hole 12 of the base member 102 and has a thread on the outer periphery is fitted into the mounting hole 12 that is a tap hole. It is attached. A step 12 a having an inner diameter smaller than the outer diameter of the first spherical seat 38 is provided inside the mounting hole 12, and the first spherical seat 38, the spherical body 32 b, and the second spherical seat 40 are secured by the presser screw 42. Is pressed against the step 12a. The base member 102 is provided with a fixing tap hole 14 penetrating from the side surface toward the mounting hole 12, so that the presser screw 42 can be fixed using a screw from the side surface of the base member 102. preferable. Further, it is also preferable that the holding screw 42 is provided with a cut 42a so that the force for pressing the first spherical seat 38, the spherical body 32b, and the second spherical seat 40 can be adjusted by a driver, a coin or the like. is there.

  In such an attached state, the inclination of the adjustment rod 106 with respect to the base member 102 can be changed by sliding between the spherical body 32 b and the first spherical seat 38 and the second spherical seat 40. That is, the adjustment rod 106 is provided with an angle changing mechanism that changes the attachment angle with respect to the base member 102.

  When the length of one of the adjustment rods 106 is adjusted, the angle of the adjustment rod 106 with respect to each base member 102 is changed depending on the relationship with the length of the other adjustment rod 106, and the position and angle of the end member 104 with respect to the base member 102 are changed. Can be adjusted. When the base member 102 is fixed to the tripod and the optical device is fixed to the end member 104, the horizontal direction (X direction, Y direction) of the optical device with respect to the tripod is adjusted by adjusting the length of the adjustment rod 106. The vertical direction (Z direction) and angle can be finely adjusted. In particular, even when a heavy optical instrument including an equator is targeted, the operability for fine adjustment is excellent, and the adjustment accuracy can be increased.

  In addition, by adjusting the fitting condition of the presser screw 42, the force on the spherical body 32b sandwiched between the first spherical seat 38 and the second spherical seat 40 can be adjusted. For example, when a heavy equipment is fixed to the end member 104, the pressing of the spherical body 32b against the first spherical seat 38 and the second spherical seat 40 is increased by the load, and the movement of the angle changing mechanism tends to be heavy. Therefore, by weakening the pressing by the presser screw 42, the movement of the angle changing mechanism can be made smooth. On the other hand, when a light device is fixed to the end member 104, the pressing of the spherical body 32b to the first spherical seat 38 and the second spherical seat 40 becomes weak, the angle changing mechanism is too loose, and the optical device is rattled. Is likely to occur. Therefore, by strengthening the pressing by the presser screw 42, the optical device can be firmly fixed.

  As described above, according to the present embodiment, the optical device support has excellent operability for fine adjustment, and is smaller and lighter than a support base that achieves equivalent operability, and has improved adjustment accuracy. A stand can be provided.

  In the optical device support base 100 in the present embodiment, the angle adjustment mechanism is provided on the base member 102 side, but may be provided on the end member 104 side. Further, the expansion / contraction adjustment mechanism and the angle adjustment mechanism of the adjustment rod 106 are not limited to the configuration in the present embodiment, and other configurations may be adopted.

  10 tapped holes, 12 mounting holes, 12a step, 14 fixed tapped holes, 20 mounting holes, 22 holes, 24 threaded holes, 26 mounting jigs, 28 threaded holes, 30 connecting pipes, 30a threads, 30b tapped holes, 32 connections Rod, 32a thread, 32b spherical body, 32c notch, 34 first screw, 34a tapped hole, 34b tapped hole, 36 second screw, 36a tapped hole, 38 spherical seat, 38a seat, 40 spherical seat , 40a Seat surface, 42 Presser screw, 42a Notch, 100 Optical device support base, 102 Base member, 104 End member, 106 Adjustment rod.

Claims (4)

A base member as a basis for support;
An end member to which an optical device is attached;
A plurality of adjustment rods that connect the base member and the end member and can be independently expanded and contracted;
With
A support base for an optical device for supporting an optical device including an equator, to which a parallel mechanism capable of changing a relative position and an angle between the base member and the end member is applied. It is a support stand for optical instruments according to claim 1,
The adjustment rod has an angle changing mechanism between the base member and the end member, and the hardness of the angle changing mechanism can be adjusted. A support for optical equipment according to claim 2,
The angle changing mechanism includes a spherical body at a tip portion of the adjustment rod, and a sitting tool that contacts the spherical body provided on the base member or the end member,
A support base for an optical device, wherein a contact pressure between the spherical body and the seating surface is adjustable. It is a support stand for optical instruments in any 1 paragraph of Claims 1-3,
The adjustment rod is configured by combining a connection rod having a thread on the outer periphery of the end and a connection pipe having a thread that fits the connection rod on the inner surface of the cylindrical end, and the connection rod or the connection At least one screw thread of the pipe is formed by rolling, and a support for optical equipment.

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