JP2019191615A - Altazimuth mount and telescope system - Google Patents

Abstract

To provide an altazimuth mount and a telescope system extending a movable range of a telescope main body.SOLUTION: An altazimuth mount 10 comprises a base part 100 connected to a support device 30, a first arm member 102 extending in a horizontal direction on the base part 100 and rotating in the horizontal direction with respect to the base, a second arm member 103 extending in a vertical direction with respect to the first arm member 102 from the other end of the first arm member 102, and a telescope connection part 106 to which an external telescope main body 20 is connected. The second arm member 103 is connected to the first arm member 102 so as to be rotatable at least in the vertical direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a graticule used for a telescope and a telescope system including the graticule.

  Conventionally, as a mechanism for supporting an astronomical telescope or the like and adjusting the orientation of the astronomical telescope or the like, a graticule has been used as the simplest one. The graticule is a frame composed of two axes, a horizontal axis and a vertical axis perpendicular to it. The structure is simple, easy to process, inexpensive to manufacture, easy to understand, and is often used as a small-aperture telescope for beginners. ing.

  The graticule can adjust the horizontal direction of the telescope by finely moving the horizontal axis with the handle, and can adjust the altitude of the telescope by finely moving the vertical axis perpendicular to the horizontal axis with the handle. it can. As a typical example of the graduation stand, there is known one that variably supports the altitude of the telescope by an arm called a fork type or a one-handed fork type.

  The fork type graticule has a substantially U-shaped arm, and has a structure that supports the telescope so as to be sandwiched between both ends of the substantially U-shaped arm. The fork-type gratitude platform supports the telescope with two arms and can withstand a large-diameter telescope with a large weight. On the other hand, the structure increases in size and weight, so it is easy for beginners to move and observe. Is unsuitable (see Patent Document 1).

  On the other hand, a single-handed fork type graticule has a substantially L-shaped arm, and has a structure in which the telescope is supported in a cantilevered manner by the tip of the substantially L-shaped arm. The one-handed fork-type pedestal is simpler in structure than the fork-type pedestal and is suitable for small-aperture telescopes.

  Many of the gratitude platforms are tripods, etc., so that they do not come into contact with the telescope when the telescope is perpendicular to the horizon, that is, when the telescope is facing the zenith. Inclined from the lower part of the arm connected to the upper part of the arm. That is, a device has been devised in which the telescope can be used to avoid the interference between the telescope and the tripod by shifting the pivot point of the telescope from the fixed part of the graticule and the tripod.

JP2015-180948A

  However, the above-described graduation table has a high possibility of interference between the telescope and a support device such as a tripod due to the restriction of the shape of the arm part, resulting in a disadvantage that the movable range of the telescope is narrowed. In order to avoid the interference of the telescope, it is necessary to use a specially shaped arm that holds the telescope at a position deviated from the position of the center of gravity of the system.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide an abutment table and a telescope system that can finely position an arm portion, are simple and easy to use, and are easy for beginners to handle. .

  In order to solve the above-described problems, a graticule according to the present invention includes a base portion connected to an external support device, a horizontal portion extending on the base portion, and a horizontal rotation with respect to the base. A first arm member, a second arm member extending in a direction perpendicular to the first arm member from the other end of the first arm member, and a telescope connecting portion to which an external telescope body is connected The second arm member is coupled to the first arm member so as to be rotatable at least in the vertical direction.

  In order to solve the above-described problems, a telescope system according to the present invention includes a telescope main body, a graticule that can change the telescope main body in a desired direction, and a telescope base connected to the telescope base to support the telescope main body and the graticule base. A base unit connected to an external support device, a first arm member extending horizontally on the base unit and rotating in a horizontal direction with respect to the base; A second arm member extending in a direction perpendicular to the first arm member from the other end of the first arm member, and a telescope connecting portion to which an external telescope main body is connected. The second arm member is connected to the arm member so as to be rotatable at least in the vertical direction.

  According to such an aspect, the movable range of the telescope body can be expanded by rotating the second arm member in the vertical direction.

  According to the present invention, the arm portion can be finely positioned, and the range of movement of the telescope body can be expanded to improve the degree of freedom of observation. Therefore, it is possible to improve the usability of the graduation platform.

FIG. 1 is a front view illustrating a telescope system. FIG. 2 is a perspective view for explaining the graduation table. FIG. 3 is another perspective view for explaining the graduation table. FIG. 4 is an exploded perspective view for explaining the structure of the graticule. FIG. 5 is a plan view of the first fine movement mechanism and the second fine movement mechanism as seen from the back side. FIG. 6 is a plan view of the first fine movement mechanism and the second fine movement mechanism as viewed from the fine movement shaft side. FIG. 7 is a plan view of the first fine movement mechanism and the second fine movement mechanism as viewed from the side. FIG. 8 is a plan view of the first fine movement mechanism and the second fine movement mechanism as seen from the surface. 9 is a cross-sectional view of the first fine movement mechanism and the second fine movement mechanism, FIG. 9A is a cross-sectional view taken along line AA in FIG. 8, and FIG. 9B is taken along line BB in FIG. It is sectional drawing. FIG. 10 is a perspective view for explaining the first arm member and the second arm member, FIG. 10 (A) is a perspective view seen from the back side, and FIG. 10 (B) is seen from the front side. It is a perspective view. FIG. 11 is a plan view of the first arm member and the second arm member as viewed from the surface side. FIG. 12 is a plan view of the first arm member and the second arm member as seen from the side surface in the longitudinal direction. FIG. 13 is a plan view of the first arm member and the second arm member as seen from the back side. 14 is a cross-sectional view taken along line AA in FIG. FIG. 15 is a perspective view illustrating the connecting portion. FIG. 16 is a perspective view for explaining the third cover member and the fourth cover member. FIG. 17 is a perspective view for explaining the operation of the graduation table. FIG. 18 is another perspective view for explaining the operation of the gratitude table. FIG. 19 is still another perspective view for explaining the operation of the theodolite. FIG. 20 is a front view for explaining a modified example of the graduation table.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS A history table to which the present invention is applied will be described in detail below with reference to the drawings. It should be noted that the present invention is not limited to the following embodiments, and various modifications can be made without departing from the scope of the present invention. Further, the drawings are schematic, and the ratio of each dimension may be different from the actual one. Specific dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

[About the telescope system]
First, the telescope system will be briefly described with reference to FIG. As shown in FIG. 1, the telescope system 1 includes a one-handed fork-type graticule 10 capable of operating two arm members, which will be described later, and a telescope body 20 held by the graticule 10, And a support device 30 that supports the pedestal table 10.

  The telescope system 1 is assembled and used by mounting the graticule 10 on a support device 30 composed of, for example, a tripod, and mounting the telescope body 20 on the graticule 10.

  Since the telescope body 20 and the support device 30 are general-purpose devices, detailed description thereof will be omitted, but parts necessary for explaining the technical features of the telescope system 1 and the graduation table 10 will be briefly described below. Explained.

[About the telescope body]
The telescope body 20 has an objective optical system. For example, various optical systems such as a refraction type using an objective lens and a reflective catadioptric type using a concave reflecting mirror are selected depending on the application. Can do. The telescope main body 20 is used while being supported so as to be able to track a celestial body by operating the graduation table 10 mounted on the support device 30.

  For example, as shown in FIG. 1, the telescope body 20 is connected to a refractive objective lens 21, a lens barrel 22 that holds the objective lens 21, a lens barrel band 23 that holds the lens barrel, and a lens barrel band 23. And a convex portion 24 that engages a lens barrel mounting concave portion, which will be described later. Although not shown in FIG. 1, it goes without saying that the telescope body 20 may include a guide scope, an eyepiece lens, and the like.

  When the telescope body 20 is of a refraction type using an objective lens, the eyepiece shares the optical axis with the objective lens 21 and is attached in front of the lens barrel 22 (front side in FIG. 1). Are attached to the rear of the lens barrel 22 (in the depth direction in FIG. 1) so as to be arranged in a straight line. Further, if the telescope body 20 is a refraction type using the objective lens 21, unlike the reflection type telescope, there is no need to fold back the optical path by reflection, so that the total length of the lens barrel 22 that secures the entire optical path length becomes long. Tend.

[Supporting device]
As shown in FIG. 1, for example, a tripod can be used as the support device 30. The support device 30 includes a tripod mechanism that can be folded by connecting an extendable leg 31 to a central part 32. The tripod has an advantage that the leg portion 31 is made of a lightweight metal such as aluminum, and thus has excellent transportability while ensuring strength. The support device 30 is not limited to a tripod, and may be a pillar leg that places importance on installation stability, and does not preclude substitution with a base plate that is installed on the ground as it is.

[About the background]
As shown in FIGS. 2 and 3, the theft 10 includes a base portion 100 connected to the support device 30, a first fine movement mechanism 101 that is provided on the base portion 100 and can be rotated in the horizontal direction, One end of the first fine movement mechanism 101 is connected to the first fine movement mechanism 101. The first fine movement mechanism 101 extends in the horizontal direction from the first fine movement mechanism 101, and rotates in the horizontal direction with respect to the base portion 100 by the operation of the first fine movement mechanism 101. An arm member 102; a second arm member 103 extending from the other end of the first arm member 102 in a direction perpendicular to the first arm member 102; a second end of the first arm member 102; One end of the arm member 103 is connected, and the telescope main body 20 is connected to a connecting portion 104 that supports the first arm member 102 so that the second arm member 103 can rotate in the vertical and horizontal directions. Telescope connection 10 6 and a second fine movement mechanism 105 that is connected to the other end of the second arm member 103 and is connected to the telescope connecting portion 106 and is rotatable in the vertical direction.

  Further, the stage 10 is connected to the first cover member 151 that covers the connection portion between the first fine movement mechanism 101 and the first arm member 102, and the connection between the second fine movement mechanism 105 and the second arm member 103. A second cover member 152 covering the portion, a third cover member 153 covering the connection portion between the first arm member 102 and the connecting portion 104, and a second cover member covering the connection portion between the second arm member 103 and the connecting portion 104. 4 cover members 154.

[Detailed structure of the background]
Next, each configuration and detailed structure of the graduation table 10 will be described with reference to an exploded perspective view shown in FIG.

  First, the base portion 100 is a component that serves as a base for mounting the entire graticule 10 to the support device 30, and has a substantially cylindrical shape, as shown in FIG. 1, below the central portion 32 of the support device 30. To the support device 30 by screws 100a or the like.

  Next, as shown in FIGS. 5 to 9, the first fine movement mechanism 101 includes a fine movement shaft 201, a first convex portion 203 on the back surface 101a side, and a second convex portion 204 on the front surface 101b side. And has a substantially cylindrical shape. In the first fine movement mechanism 101, the first convex portion 203 is fixed to the base portion 100, the second convex portion 204 is fixed to the first arm member 102, and the first convex portion 203 and the second convex portion are fixed. The unit 204 is configured to be rotatable relative to each other by sharing a rotation axis.

  The first fine movement mechanism 101 rotates the fine movement shaft 201 with a fine movement handle or the like (not shown) so that the portion connected to the first convex portion 203 and the portion connected to the second convex portion 204 are relative to each other. The first arm member 102 is rotated in the horizontal direction with respect to the base portion 100.

  The first fine movement mechanism 101 is provided with a worm gear (not shown) on the fine movement shaft 201. By rotating a worm wheel that meshes with the worm gear, a portion connected to the first convex portion 203 and a second convex portion are provided. The part connected to the unit 204 is configured to be relatively rotated. The fine movement shaft 201 is provided with a chamfered portion 201a, and a fine movement handle or the like is attached by screwing or the like using this portion.

  Next, as shown in FIGS. 10 to 14, the first arm member 102 is a substantially planar arm member connected to the first fine movement mechanism 101 and extending in the horizontal direction. When viewed from the back surface 102a side, the first arm member 102 is provided with an opening 110 at one end and an opening 111 at the other end, as shown in FIG. Similarly, when viewed from the front surface 102b side, the first arm member 102 is provided with an opening 110 at one end and an opening 111 at the other end, as shown in FIG.

  The first arm member 102 can be formed of, for example, a metal material such as aluminum as a lightweight and high-strength member. The first arm member 102 can be easily mass-produced by a technique such as die-casting using an aluminum material. However, as shown in FIG. The structure is such that the middle part is cut out and the strength is maintained by the ribs 112.

  As shown in FIG. 4, the first arm member 102 has a cover plate 113 that covers the rib 112 in the middle part of the arm structure. The first arm member 102 covers the ribs 112 with the cover plate 113 to reduce unevenness on the back surface 102a, making it easy for the user to handle and making a stylish appearance even with a thinned structure. Can keep.

  The first arm member 102 is connected to the first fine movement mechanism 101 by inserting the second convex portion 204 of the first fine movement mechanism 101 into the opening 110 from the front surface 102b side at one end, and is connected to the first fine movement mechanism 101 at the other end. A first support shaft 301 of the connecting portion 104 described later is inserted into the opening 111 from the side and connected to the connecting portion 104.

  The first arm member 102 has a plurality of radial grooves 114 around the opening 111 on the back surface 102a side. The groove portion 114 is provided in a shape corresponding to a first claw portion 303 of the connecting portion 104 to be described later, and the first arm member 102 and the connecting portion 104 are engaged with the first claw portion 303. Can be fixed so as not to rotate around the first support shaft 301.

  Next, as shown in FIGS. 4 and 15, the connecting portion 104 is a member that connects the first arm member 102 and the second arm member 103. The connecting portion 104 includes a first support shaft 301 that stands vertically from the center of the first surface 104a and a second shaft that stands vertically from the center of the second surface 104b orthogonal to the first surface 104a. A support shaft 302 is provided. Therefore, it can be said that the first support shaft 301 and the second support shaft 302 are orthogonal to each other.

  Further, the connecting portion 104 has a radial first claw portion 303 on the first surface 104 a centering on the first support shaft 301, and the second surface centering on the second support shaft 302. A radial second claw portion 304 is provided on 104b.

  The first support shaft 301 and the second support shaft 302 are constituted by rod-shaped members having a helical thread groove. The first support shaft 301 is inserted into the opening 111 of the first arm member 102 and is fixed by screwing. The second support shaft 302 is inserted into an opening 121 of the second arm member 103 described later, and is fixed by screwing.

  In addition, the screwing is performed by rotating the third cover member 153 and the fourth cover member 154 in which the nut portion 153a and the nut portion 154a shown in FIG. 16 are embedded, so that the nut portion 153a and the nut portion 154a are moved to the first portion. It can be realized by tightening to the support shaft 301 and the second support shaft 302. The cover member 153 and the fourth cover member 154 are provided with a circular outer peripheral groove 153b and an outer peripheral groove 154b, and are configured to be easily loosened or tightened by hand for the rotational operation described later.

  Next, as shown in FIGS. 10 to 14, the second arm member 103 is a substantially planar arm member connected to the connecting portion 104 and extending in the vertical direction. When viewed from the back surface 103a side, the second arm member 103 is provided with an opening 121 at one end and an opening 120 at the other end, as shown in FIG. Similarly, when viewed from the front surface 103b side, the second arm member 103 is provided with an opening 121 at one end and an opening 120 at the other end, as shown in FIG.

  The second arm member 103 can be formed of, for example, a metal material such as aluminum as a lightweight and high-strength member. The second arm member 103 can be easily mass-produced by a technique such as die-casting using an aluminum material. However, as shown in FIG. The structure is such that the midway portion is thinned and the strength is maintained by the ribs 122.

  As shown in FIG. 4, the second arm member 103 has a cover plate 123 that covers the rib 122 in the middle part of the arm structure. The second arm member 103 covers the rib 122 with the cover plate 123, thereby reducing the unevenness on the back surface 103a, facilitating the user's handling, and having a slim structure even in a stylish appearance. Can keep.

  The second arm member 103 is connected to the connecting portion 104 by inserting the second support shaft 302 of the connecting portion 104 into the opening 121 from the back surface 103a side at one end, and connected to the opening 120 from the front surface 103b side at the other end. The first convex portion 223 of the second fine movement mechanism 105 is inserted and connected to the second fine movement mechanism 105.

  The second arm member 103 has a plurality of radial grooves 124 on the outer periphery of the opening 121 on the back surface 103a side. The groove portion 124 is provided in a shape corresponding to the second claw portion 304, and the second arm member 103 and the connecting portion 104 are engaged with the second claw portion 304, whereby the second support shaft is used. It can fix so that it may not rotate centering on 302. FIG.

  Here, as shown in FIGS. 11 to 14, the second arm member 103 is the same member as the first arm member 102, thereby reducing the component management cost and the manufacturing cost reduction effect by reducing the types of components. Can be expected.

  Next, as shown in FIGS. 5 to 9, the second fine movement mechanism 105 has a fine movement shaft 221, a first convex portion 223 on the back surface 105a side, and a second convex portion 224 on the front surface 105b side. It has a substantially cylindrical shape. In the second fine movement mechanism 105, the first convex portion 223 is fixed to the second arm member 103, the second convex portion 224 is fixed to the telescope connecting portion 106, and the first convex portion 223 and the second convex portion 223 are The convex portion 224 is configured to be rotatable relative to each other by sharing a rotation axis.

  The second fine movement mechanism 105 rotates the fine movement shaft 221 with a fine movement handle or the like (not shown) so that the portion connected to the first convex portion 223 and the portion connected to the second convex portion 224 are relative to each other. The telescope connection unit 106 is rotated in the horizontal direction with respect to the second arm member 103. That is, when viewed from the entire telescope system 1, the second fine movement mechanism 105 rotates the telescope connection unit 106 in the vertical direction.

  The second fine movement mechanism 105 is provided with a worm gear (not shown) on the fine movement shaft 221. By rotating a worm wheel that meshes with the worm gear, the second fine movement mechanism 105 is connected to a portion connected to the first convex portion 223 and a second convex portion. The part connected to the part 224 is configured to rotate relative to the part. The fine movement shaft 221 is provided with a chamfered portion 221a, and a fine movement handle or the like is attached by screwing or the like using this portion.

  Here, as shown in FIG. 5 to FIG. 9, the second fine movement mechanism 105 has the same configuration as the first fine movement mechanism 101. Can be expected.

  In the first fine movement mechanism 101 and the second fine movement mechanism 105, a fine movement handle (not shown) is attached to the fine movement shaft 201 and the fine movement shaft 221. However, in addition to the shaft rotation by manual operation of the handle, the motor drive device Needless to say, the shaft may be rotated.

  Next, the telescope connecting portion 106 includes a telescope fixing screw 160, a telescope fixing screw 161, and a groove portion 106a. The convex portion 24 of the telescope body 20 is fitted into the groove portion 106a, and the telescope fixing screws 160 and 161 are screwed in. Thus, the convex portion 24 can be pressed and fixed in the groove portion 106a. As a result, the pedestal table 10 can stably hold the telescope body 20.

  The telescope system 1 configured as described above allows the first arm member 102 and the second arm member 103 of the graduation base 10 to freely rotate in the horizontal rear and vertical directions using the connecting portion 104, respectively. Can do.

  Here, although at least one each of the first claw portion 303 and the second claw portion 304 is necessary in the connecting portion 104, it is preferable to provide a plurality. Since the first claw portion 303 and the second claw portion 304 are engaged with the groove portion 114 of the first arm member 102 and the groove portion 124 of the second arm member 103, a plurality of the first claw portion 303 and the second claw portion 304 can This is because the connection between the arm member 102 and the second arm member 103 can be further strengthened.

  As shown in FIG. 15, a plurality of first claw portions 303 and second claw portions 304 are arranged at equal intervals so as to extend radially around the first support shaft 301 and the second support shaft 302, respectively. I have to. In FIG. 15, the first claw portion 303 and the second claw portion 304 are provided by dividing the circumference into eight equal parts around the first support shaft 301 and the second support shaft 302.

  Further, it is preferable that the number of the groove portions 114 and the groove portions 124 in the first arm member 102 and the second arm member 103 is larger than that of the first claw portion 303 and the second claw portion 304. Positioning locations increase in proportion to the number of the groove portions 114 and the groove portions 124, and the first arm member 102 and the second arm member 103 can be finely positioned.

  As shown in FIG. 10, a plurality of grooves 114 and 124 are arranged at equal intervals so as to extend radially around the opening 111 and the opening 121. In FIG. 10, the groove 114 and the groove 124 are provided by dividing the circumference into 24 equal parts around the opening 111 and the opening 121, and the first claw 303 and the second claw 304 shown in FIG. 15. The number is three times the number.

[Deformation of the table]
Next, the operation of the weft base 10 will be described in detail based on the rotation operations of the first arm member 102 and the second arm member 103.

  First, it is assumed that the background 10 is in a normal use state as shown in FIG. Therefore, the operation of the theft table 10 will be described from the state shown in FIG.

  First, as shown in the configuration of the telescope system 1 shown in FIG. 1, the graduation table 10 in FIG. 2 is directly above the central portion 32 of the support device 30 so that the telescope body 20 is located at the center of gravity of the support device 30. , And used in such a form as to be located immediately above the base part 100. This configuration is most preferable for stabilizing the center of gravity of the telescope system 1, and is also preferable for stably supporting the telescope main body 20 having a certain weight.

  As a first step, from the state shown in FIG. 2, the third cover member 153 is rotated to loosen the nut portion 153 a, and a slight gap is generated on the connection surface between the connecting portion 104 and the first arm member 102. The gap generated here is not less than the height of the first claw portion 303 of the connecting portion 104. Even when the first claw portion 303 of the connecting portion 104 is disengaged from the groove portion 114 of the first arm member 102 and rides on the back surface 102a of the first arm member 102 when the connecting portion 104 is to be rotated, the connecting portion 104 is connected. This is because the portion 104 can be rotated.

  Then, a gap is generated in the connection surface between the connecting portion 104 and the first arm member 102, and the connecting portion 104 can be rotated in the horizontal direction. It deforms into a shape like this. After the deformation, by tightening the third cover member 153, the first claw portion 303 of the connecting portion 104 and the groove portion 114 of the first arm member 102 are engaged and fixed, and the horizontal rotation operation is performed. Deter.

  As the second step, from the state shown in FIG. 17, the fourth cover member 154 is rotated to loosen the nut portion 154 a, and a slight gap is generated on the connection surface between the connecting portion 104 and the second arm member 103. The gap generated here is not less than the height of the second claw portion 304 of the connecting portion 104. Even when the second claw portion 304 of the connecting portion 104 is disengaged from the groove portion 124 of the second arm member 103 and gets on the back surface 103a of the second arm member 103 when the connecting portion 104 is to be rotated, the connecting portion 104 is connected. This is because the portion 104 can be rotated.

  Then, a gap is generated in the connection surface between the connecting portion 104 and the second arm member 103, and the second arm member 103 is rotated in the left direction in a state where the second arm member 103 can be rotated in the vertical direction. It is deformed into a shape as shown in FIG. 18 by rotating it by the maximum angle within a movable range. After the deformation, by tightening the fourth cover member 154, the second claw portion 304 of the connecting portion 104 and the groove portion 124 of the second arm member 103 are engaged and fixed, and the vertical rotation operation is performed. Deter.

  Regarding the rotation angle of the second arm member 103 in this step, the second fine movement mechanism 105 and the telescope connection unit 106 connected to the other end of the second arm member 103 are connected to the first arm member 102, The range does not contact the first fine movement mechanism 101, the first cover member 151, and the like, but is preferably as close as possible to 90 degrees.

  As the third step, from the state shown in FIG. 18, the fine adjustment shaft 221 of the second fine adjustment mechanism 105 is rotated to rotate the telescope connecting portion 106, and as shown in FIG. 19, the telescope fixing screw 160 and the telescope fixing screw are used. It is moved to a position where 161 does not protrude. Specifically, it is preferable to rotate the telescope connecting portion 106 to a position where the telescope fixing screw 160 and the telescope fixing screw 161 are directed to the connecting portion 104 side. Since there is a dead space on the first arm 102 on the connecting portion 104 side, storing the telescope fixing screw 160 and the telescope fixing screw 161 in this space maximizes the effect of reducing the storage volume of the graduation base 10.

  The graduation table 10 configured as described above has a configuration in which the second arm member 103 can rotate in two axes with respect to the first arm member 102, and thus can have a folding structure that cannot be obtained conventionally. The storage volume can be greatly reduced compared to the history table. Since the storage table 10 has a reduced storage volume, it is easy to carry and handle when moving.

  Further, since the above-described pedestal table 10 is a mechanism that does not require disassembly, it does not need to be reassembled, and it can be handled easily even by a beginner without much effort.

  In addition, since the abutment base 10 configured as described above is configured such that the second arm member 103 can be rotated about two axes with respect to the first arm member 102, the telescope body 20 to be mounted is the abutment base 10 or the support device. 30 can be held at a position that does not interfere with the telescope 30, the movable range of the telescope body 20 can be expanded, and the degree of freedom in observation can be improved.

  In particular, when the telescope body 20 is directed toward the zenith directly above, the second arm 103 is rotated vertically to a position shifted from the center of gravity of the system in order to avoid interference of the telescope body 20, thereby Since the arm 103 can be inclined obliquely, it is not necessary to prepare a specially shaped arm.

[Modification]
As shown in FIG. 20, the theft 10 is a second fine movement on the other end of the second arm member 103 on the side opposite to the side where the second arm member 103 and the connecting portion 104 abut. It is also possible to mount the mechanism 105.

  In this case, in the second fine movement mechanism 105, the first convex portion 223 is inserted into the opening 120 of the second arm member 103 from the surface 103b side and fixed with screws. There is no change.

  The arrangement table 10 can hold the telescope main body 20 at a position where it hardly interferes with the calculation table 10 and the support device 30 by the arrangement as described above, and the movable range of the telescope main body 20 can be expanded. It becomes.

  However, when applying such a modification, it is necessary to select the telescope body 20 having a light weight. This is because, as described above, the telescope main body 20 is held at a position away from the center of gravity of the entire telescope system 1, so that there is a risk of lack of balance. Therefore, it can be said that it is preferable to use the telescope main body 20 that is sufficiently lighter than the graticule 10 and the support device 30.

  In the above, this invention was demonstrated based on the Example and the modification. The present invention is not limited to the contents of the above-described embodiments and modifications, and various modifications can be made within the scope of the gist of the present invention. It will be understood by those skilled in the art that the above-described embodiments and modifications are exemplifications, and various additions can be made to combinations of the respective components, and such modifications are within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Telescope system, 10 Graticule stand, 20 Telescope main body, 21 Objective lens, 22 Lens barrel, 23 Lens barrel band, 24 Convex part, 30 Support device, 31 Leg part, 32 Center part, 100 Base part, 100a Screw, 101 1st 1 fine movement mechanism, 101a back surface, 101b surface, 102 first arm member, 101a back surface, 102b surface, 103 second arm member, 103a back surface, 103b surface, 104 connecting portion, 104a first surface, 104b second Surface, 105 second fine movement mechanism, 105a back surface, 105b surface, 106 telescope connecting portion, 106a groove portion, 110 opening portion, 111 opening portion, 112 rib, 113 cover plate, 114 groove portion, 120 opening portion, 121 opening portion, 122 rib, 123 cover plate, 124 groove, 151 first Bar member, 152 second cover member, 153 third cover member, 153a nut portion, 153b outer peripheral groove, 154 fourth cover member, 154a nut portion, 154b outer peripheral groove, 160 telescope fixing screw, 161 telescope fixing screw, 201 fine movement shaft, 201a chamfered portion, 203 first convex portion, 204 second convex portion, 221 fine movement shaft, 221a chamfered portion, 223 first convex portion, 224 second convex portion, 301 first support shaft , 302 2nd support shaft, 303 1st claw part, 304 2nd claw part

Claims (6)

A base connected to an external support device;
A first arm member extending in a horizontal direction on the base portion and rotating in a horizontal direction with respect to the base;
A second arm member extending from the other end of the first arm member in a direction perpendicular to the first arm member;
A telescope connection to which an external telescope body is connected;
With
A graduation table in which the second arm member is connected to the first arm member so as to be rotatable at least in a vertical direction.   The first arm of the second arm member has a plurality of grooves and claw portions provided radially in the rotation direction of the second arm member, and the claw portions engage with the groove portions. The graduation table according to claim 1, wherein a vertical rotation position with respect to the arm member is determined.   The said claw part and the said groove part are the pedestals of Claim 2 provided at equal intervals radially over the rotation direction of the said 2nd arm member. The second arm member has an opening at one end;
The rotation of the second arm member includes a spindle having a helical thread groove inserted into an opening at one end of the second arm member, and a nut portion screwed with the spindle. 4. A scale according to claim 2, wherein the rotation position of the second arm member is determined with the support shaft as a rotation center. A first fine movement mechanism that is provided on the base portion and rotates the first arm member in a horizontal direction with respect to the base portion;
5. The second fine movement mechanism provided at the other end of the second arm member and connected to the telescope connection portion and capable of rotating in a vertical direction. 6. The history table. The telescope body,
A graduation platform capable of changing the telescope body in a desired direction;
A support device connected to the graticule for supporting the telescope body and the graticule;
A telescope system according to any one of claims 1 to 5, wherein the graticule is described in any one of claims 1 to 5.

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