JPH0915511A - Lens barrel attaching device for telescope - Google Patents

Abstract

PURPOSE: To provide an attaching device for a telescope capable of easily attaching/detaching the telescope, having a satisfactory supporting force in a length direction and also unnecessitating a positonal adjustment. CONSTITUTION: An upper receiving base 4 is attached to the rear surface of the lens barrel 1 for the telescope, a lower receiving base 5 abutting on the base 4 is attached to a supporting member for supporting the lens barrel, and the abutting part of the base 4 and the base 5 are formed to a rectangular shape, and also, two parallel recessed part 11 and projecting part 8 which engage each other along the length direction of the lens barrel 1 are formed on the abutting surface, and the device is provided with a screw means 12 which is screwed from the base 5 to the base 4 so as to connect the base 5 to the base 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens barrel mounting device for supporting a lens barrel of a telescope.

[0002]

11 and 13 show examples of conventional barrel mounting devices for telescopes. In the conventional device shown in FIG. 11, the pedestal 41 is formed in a T-shape on the side surface, the barrel 40 of the telescope is placed on the horizontal portion 41a of the pedestal 41, and these are directly coupled by screws 42. The vertical portion 41b of 41 is attached to the luggage carrier of a tripod. On the other hand, FIG. 12 (side view)
In the conventional device shown in FIG. 13 (cross-sectional view of FIG. 12), an arcuate receiving arm 43 is integrally formed on the upper end of the receiving base 41, and a band 44 is attached to the receiving arm 43 so as to be openable / closable. The lens barrel 40 is sandwiched by the receiving arm 43 and the band 44. Then, the lens barrel 40 is attached by spanning a tightening bolt 45 between the receiving arm 43 and the band 44 and tightening a nut 46.

[0003]

However, FIG.
In the conventional device shown in FIG.
Since 0 and 0 are directly coupled to each other, there is a problem that attachment and detachment of the lens barrel 40 is troublesome. On the other hand, FIG.
In the conventional apparatus shown in FIGS. 13 and 13, even though the lens barrel 40 can be easily attached and detached, it is necessary to adjust the position of the pedestal 41 in order to evenly support the lens barrel 40 in the longitudinal direction according to the center of gravity of the entire telescope. However, this adjustment is difficult. Further, even if this position adjustment is performed, the bearing force in the length direction of the lens barrel 40 is small,
There was a problem of rattling.

Therefore, the present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a telescope mounting device which is easy to attach and detach and has a sufficient supporting force in the longitudinal direction so that position adjustment is unnecessary. And

[0005]

In order to achieve the above-mentioned object, the present invention attaches an upper pedestal to the lower surface of the barrel of a telescope,
The lower pedestal with which the upper pedestal abuts is attached to a support member that supports the lens barrel, and recesses and protrusions that fit together along the length direction of the lens barrel are provided on the upper pedestal and the lower pedestal. It is characterized in that a screw means is provided at the abutting portion and screwed from the lower pedestal to the upper pedestal to connect the lower pedestal and the upper pedestal.

Further, in the above, the abutting portions of the upper pedestal and the lower pedestal are formed in a circular shape, and the abutting portions are provided with circular concave portions and convex portions which are concentric with the circular shape and fit with each other.
Alternatively, the contact portion may be formed in a rectangular shape, and the position may be fixed by providing a plurality of circular concave portions and convex portions that are fitted to each other in the rectangular contact portion and fitting them.

[0007]

According to the present invention, the recesses and the protrusions formed on the upper pedestal and the lower pedestal are fitted to each other to position the upper pedestal with respect to the lower pedestal, and the screw means is used in this state. The upper and lower pedestals are joined together to support the lens barrel in its longitudinal direction. As a result, the lens barrel can be easily attached and detached, and can be stably supported in the length direction.

[0008]

Embodiments of the present invention will be specifically described below with reference to the drawings. In each embodiment, the same components are designated by the same reference numerals, and duplicate description will be omitted.

[0009]

Embodiment 1 FIGS. 1 to 4 show Embodiment 1 of the present invention,
1 is an overall view of the telescope and the lens barrel mounting device, FIG. 2 is a front view of the lens barrel mounting device, FIG. 3 is a side view of the lens barrel mounting device in cross section, and FIG. It is a figure of the contact surface seen from the direction.

As shown in FIG. 1, a tripod 2 and a loading platform 3 rotatably attached to the head of the tripod 2 constitute a support member for supporting the barrel 1 of the telescope. An upper pedestal 4 is attached to the lower surface of the lens barrel 1, and the upper pedestal 4 is abutted against and supported by a lower pedestal 5 attached to the loading platform 3 to be mounted on the tripod 2.

By rotating the bed 3 in this mounted state, the lens barrel 1 is rotated in the left-right direction to change the field of view in the horizontal direction. Further, the lower pedestal 5 is clamped and fixed to the loading platform 3 by the handle 6, and when the fastening of the handle 6 is released, the lower pedestal 5 can be rotated in the vertical direction, and this rotation can change the visual field in the vertical direction. It is supposed to be done.

The upper pedestal 4 is provided along the length direction of the lens barrel 1. The upper pedestal 4 is attached to the lens barrel 1 by tightening screws 7 as shown in FIG. 1 is fixed to the lower surface. On both sides of the lower surface of the upper pedestal 4 (contact surface with the lower pedestal 5), a pair of convex portions 8 that are somewhat shorter than the upper pedestal 4 are parallel along the length direction of the lens barrel 1. Is formed in.

Further, two female screws 9 are formed on the upper pedestal 4 so as to be located outside the screws 7. On the other hand, the lower pedestal 5 is formed so as to have a T-shaped side surface, and its horizontal arm portion 5a supports the upper pedestal 4 and the vertical arm portion 5b is attached to the luggage carrier 3. A shaft hole 10 into which the handle shaft of the handle 6 is inserted is formed in the vertical arm portion 5b so as to be attached to the loading platform 3.

The upper surface of the horizontal arm portion 5a of the lower pedestal 5 is in contact with the upper pedestal 4, and a pair of recesses 11 are formed in parallel on both sides of the upper surface. This recess 11
Is the contact of the upper pedestal 4 with which the convex portion 8 of the pedestal 4 is fitted. The concave portion 11 extends in the length direction of the lens barrel 1 and has a depth at which the convex portion 8 fits. Have

The concave portion 11 has the same length as the convex portion 8, and when the convex portion 8 is fitted into the concave portion 11, the upper pedestal 4 is
The position of the upper pedestal 4 relative to the lower pedestal 5 is automatically set without moving in the length direction.

A male screw 12 is provided on the horizontal arm portion 5a of the lower pedestal 5 so as to project upward. The male screw 12 is provided so as to penetrate the horizontal arm 5a of the lower pedestal 5 so as to face the female screw 9 formed on the upper pedestal 4. By screwing the male screw 12 to the corresponding female screw 9, The pedestal 5 and the upper pedestal 4 are combined and integrated, that is, the male screw 12 and the female screw 9 act as screw means for coupling the lower pedestal 5 and the upper pedestal 4 together. In order to screw the male screw 12, a dial 13 for rotating the male screw 12 is attached to the lower end portion of the male screw 12 that penetrates the horizontal arm portion 5a.

In FIG. 2, reference numeral 14 denotes a spring for urging the male screw 12 so as to project upward from the horizontal arm portion 5a of the lower pedestal 5, whereby the upper pedestal 4 is brought into contact with the lower pedestal 5. This makes it possible for the male screw 12 to automatically move into the female screw 9 of the upper pedestal 4.

Next, the assembly of the above structure will be described. The upper pedestal 4 is attached to the lower surface of the lens barrel 1 with screws 7 in advance. On the other hand, the lower pedestal 5 is rotatably attached to the luggage carrier 3, and the handle 6 of the luggage carrier 3 is tightened to lock the rotation. In this state, the upper pedestal 4 is brought into contact with the lower pedestal 5 so that the convex portion 8 fits into the concave portion 11.

When the convex portion 8 is fitted into the concave portion 11, the upper pedestal 4 is automatically positioned with respect to the lower pedestal 5, and the male screw 12 of the lower pedestal 5 is inserted into the female screw 9 of the upper pedestal 4.
Prepare to enter inside. In this state, when the dial 13 is rotated to screw the male screw 12 into the female screw 9, the upper pedestal 4 and the lower pedestal 5 are combined and integrated, and the mounting of the lens barrel 1 is completed.

In this embodiment as described above, the lens barrel 1 can be attached only by bringing the upper pedestal 4 into contact with the lower pedestal 5 and rotating the dial 13, so that the lens barrel 1 is simple. It can be attached to and detached from. Also,
The position of the lens barrel 1 can be adjusted only by bringing the upper pedestal 4 into contact with the lower pedestal 5, and the position adjustment is not necessary, and the lengthwise direction of the lens barrel 1 is sufficiently supported. Because you can, there is no rattling. Furthermore, the upper pedestal 4
By associating the lower pedestal 5 and the lower pedestal 5, the support member can be applied as it is to the lens barrels of different sizes. In this embodiment, the convex portion 11 and the concave portion 8 provided on the joint surface between the upper pedestal 4 and the lower pedestal 5 may be provided with a plurality of small-sized fitting portions in the longitudinal direction of the lens barrel 1. good.

According to this embodiment, the upper pedestal 4 is attached to the lens barrel 1, the lower pedestal 5 is attached to the supporting member, and these pedestals are coupled by the screw means. It was made possible by easy removal. In addition, since the concave portion and the convex portion which are fitted to each other along the length direction of the lens barrel 1 are provided on the joint surfaces of the upper pedestal 4 and the lower pedestal 5, it is not necessary to adjust the position of the lens barrel 1. At the same time, the length direction of the lens barrel 1 can be sufficiently supported at an appropriate position.

[0022]

Second Embodiment FIGS. 5 to 7 show a second embodiment of the present invention,
5 is a front view of the lens barrel mounting device, FIG. 6 is a side view of the lens barrel mounting device in a cross section, and FIG. 7 is a view of a contact surface of the lower pedestal as viewed in the direction of arrow BB.

In this embodiment, instead of providing the two parallel fitting portions on the contact surfaces of the upper and lower pedestals formed in the rectangular shape of the lens barrel mounting device in the first embodiment, The upper and lower pedestals 21 and 22 can be fitted to each other at their contact surfaces 2
The difference is that the circular concave portion 23 and the circular convex portion 24 are formed individually, and the other configurations are the same as those in the first embodiment. The concave portion and the convex portion may be formed on either side of the upper pedestal 21 and the lower pedestal 22.

According to this embodiment, the two circular concave portions 23 or the circular convex portions 24 are automatically positioned by fitting each other. Other functions and effects are similar to those of the first embodiment.

[0025]

Third Embodiment FIGS. 8 to 10 show a third embodiment of the present invention, FIG. 8 is a front view of a lens barrel mounting device, FIG. 9 is a side view of the lens barrel mounting device in section, and FIG. It is a figure of the contact surface which looked at the stand from the arrow CC direction.

In this embodiment, instead of providing the two parallel fitting portions at the abutting portion between the upper pedestal 4 and the lower pedestal 5 of the lens barrel mounting device in the first embodiment, an upper receiving portion is replaced. The contact portion between the base 31 and the lower pedestal 32 is formed in a circular shape, and the contact surface is provided with a circular concave portion 33 or a circular convex portion 34 which can be fitted to each other in a concentric manner with the circular shape. Two screws 7 for fixing 31 to the lens barrel 1 are provided near the outer periphery of the upper pedestal 31 at positions largely separated along the axis of the lens barrel 1, and the upper pedestal 31 and the lower pedestal 32 are provided. The male screw 12 to be integrally fixed is different from that of the first embodiment except that the male screw 12 is provided at a position greatly separated from each other in the direction perpendicular to the axis of the lens barrel 1. Other configurations are the same as those in the first embodiment. The diameter of the upper pedestal is the lens barrel 1.
Shall be of sufficient length to support in the longitudinal direction.

According to the present embodiment, the upper pedestal 31 and the lower pedestal 32 can be automatically positioned by fitting the circular concave portion 33 and the convex portion 34 into each other. , The screw 7 for fixing the upper pedestal 31 to the lens barrel 1 and the male screw 12 for fixing the upper pedestal 31 and the lower pedestal 32 in directions orthogonal to each other and at positions separated from each other. Since each part is fixed, the fixing of each part is stable. Other functions and effects are similar to those of the first embodiment.

In the first to third embodiments, the concave portion and the convex portion may be formed on either side of the joint surfaces of the upper pedestal and the lower pedestal.

[0029]

As described above, according to the present invention, the upper pedestal is attached to the lens barrel, the lower pedestal is attached to the supporting member, and these pedestals are connected by the screw means. It can be easily attached and detached, and since the upper and lower pedestals are provided with recesses and protrusions that fit with each other, it is not necessary to adjust the position of the lens barrel and the length of the lens barrel can be adjusted. By supporting the direction at the proper position, the lens barrel will not wobble.

[Brief description of the drawings]

FIG. 1 is an overall view of a telescope and a lens barrel mounting device showing a first embodiment of the present invention.

FIG. 2 is a front view of a lens barrel mounting device.

FIG. 3 is a side view showing a cross section of the lens barrel mounting device.

FIG. 4 is a view of a contact surface of the lower pedestal as seen from the direction of arrow AA in the arrow.

FIG. 5 is a front view of a lens barrel mounting device showing Embodiment 2 of the present invention.

FIG. 6 is a side view of a cross section of the lens barrel mounting device.

FIG. 7 is a view of a contact surface of the lower pedestal viewed from the direction of arrow BB.

FIG. 8 is a front view of a lens barrel mounting device showing a second embodiment of the present invention.

FIG. 9 is a side view showing a cross section of the lens barrel mounting device.

FIG. 10 is a view of a contact surface of the lower pedestal viewed from the direction of the arrow C-C.

FIG. 11 is an explanatory view of a conventional telescope mounting device.

FIG. 12 is an explanatory view of a conventional telescope mounting device.

FIG. 13 is an explanatory view of a conventional telescope mounting device.

[Explanation of symbols]

 1 lens barrel 2 tripod 3 cargo bed 4,21,31 upper pedestal 5,22,32 lower pedestal 6 handle 7 screw 8, 24, 34 convex portion 9 female screw 10 shaft hole 11, 24, 33 concave portion 12 male screw 13 dial 14 Spring

Claims (3)

[Claims] 1. An upper pedestal is attached to a lower surface of a lens barrel of a telescope, a lower pedestal with which the upper pedestal abuts is attached to a supporting member for supporting the lens barrel, and the upper pedestal and the lower pedestal are brought into contact with each other. The contact portion is formed in a rectangular shape, and two parallel recesses and protrusions that fit with each other along the length direction of the lens barrel are provided.
An apparatus for mounting a lens barrel of a telescope, comprising screw means for screwing the lower pedestal to the upper pedestal to connect the lower pedestal and the upper pedestal. 2. A contact portion between the upper pedestal and the lower pedestal is formed in a circular shape, and a circular concave portion and a convex portion which are concentric with the circular shape and are fitted to each other are provided at the abutting portion. The lens barrel mounting device for a telescope according to claim 1, wherein: 3. A contact portion between the upper pedestal and the lower pedestal is formed in a rectangular shape, and a plurality of circular concave portions and convex portions which are fitted to each other are provided in the rectangular abutting portion. The lens barrel mounting device for the telescope according to claim 1.