JPH10260365A - Motor-driven revolver and microscope equipped with motor-driven revolver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the motor-driven revolver which is almost as large as a manual revolver without spoiling the strength of a microscope main body and operability for an objective lens. SOLUTION: The motor-driven revolver 10 is equipped with a fixation part 20 which is attachable to and detachable from the fitting surface (b) of the microscope main body and a rotation part 30 which can be rotatable about the fixation part 20 and mounted with objectives; and the rotation part 30 is mounted on the fixation part 20 obliquely to the fitting surface (b) and the fixation part 20 is equipped with a motor 40 which rotates the rotation part 30 in the space formed between the rotation part 30 and fitting surface (b) because of the tilt of the rotation part 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric revolver and a microscope provided with the electric revolver.

[0002]

2. Description of the Related Art FIG. 9 is a side view showing a part of a microscope equipped with a conventional electric revolver, and FIG. 10 is a side view showing a part of the conventional electric revolver in a cutaway view.

[0003] The electric revolver 300 includes a fixing portion 320 fixed to the mounting surface 310 of the arm 2 of the microscope main body 350;
A rotating unit 330 rotatable with respect to the fixed unit 320 and capable of mounting a plurality of objective lenses 331, and a motor 340 for rotating the rotating unit 330 are provided.

[0004] The motor 340 is arranged on the side surface of the fixed part 320. The motor 340 and the rotating unit 330 are connected to a first bevel gear 3 fixed to a rotating shaft 341 of the motor 340.
45 and a second bevel gear 346 attached to the outer peripheral portion of the rotating part 330 and meshing with the first bevel gear 345.

Therefore, by rotating the motor 340, the first bevel gear 345, the second bevel gear 346
The rotation unit 330 is rotated via the, so that the objective lens 331 mounted in the mounting hole 333 of the rotation unit 330 rotates.

FIG. 11 is a side view showing a part of a conventional microscope equipped with another electric revolver, and FIG. 12 is a sectional view of the electric revolver.

The electric revolver 400 is also used for the microscope main body 4.
The fixing portion 42 fixed to the mounting surface 410 of the arm 2
0, and a rotating unit 430 that is rotatable with respect to the fixed unit 420 and can be mounted with a plurality of objective lenses 431.
And a motor 440 for rotating the rotating unit 430.

In the case of this electric revolver, the center of rotation of the rotating section 430 coincides with the rotating shaft 441 of the motor 440. The motor 440 and the rotating unit 430 are
0, a first gear 445 fixed to the rotation shaft 441, a second gear 446 meshing with the first gear 445, and a second gear 446.
The internal gear 443 is formed on the inner periphery of the cylindrical cover 432 that meshes with the gear 446 and is screwed to the rotating part 430.

Therefore, by rotating the rotating shaft 441, the rotating section 430 is rotated via the first gear 445, the second gear 446, and the internal gear 443, so that the objective lens 431 mounted on the rotating section 430 is moved. Rotate.

[0010]

By the way, the electric revolver is a heavy rotating part 33 equipped with a large number of objective lenses.
0,430 is rotated at high speed.
That is, there is a problem that a large-sized motor is required, and the size is inevitably increased as compared with a manual revolver.

Therefore, in the former revolver in which a large motor 340 is stored in the arm 2, the motor 3
There is a problem that a part of the arm 2 is cut to secure a space for storing the arm 40 and the strength of the arm 2 is reduced.

In the latter revolver, the motor 440
Is not stored in the arm 2, the above-described problem does not occur. However, since the large motor 440 protrudes from the center of rotation of the rotating unit 430, for example, the objective lens 431
There is a problem that the workability when replacing the lens or operating the correction ring 433 of the objective lens 431 is reduced.

The present invention has been made in view of such circumstances, and has as its object the provision of a small-sized electric revolver and a small-sized electric revolver, in which the strength of the microscope main body is high, the work such as replacement of an objective lens is easy. Is to provide a microscope.

[0014]

According to a first aspect of the present invention, there is provided an electric revolver, comprising: a fixed portion detachable from a mounting surface of a microscope main body; and a rotatable relative to the fixed portion. And a rotating unit capable of mounting a plurality of objective lenses, wherein the rotating unit is mounted on the fixed unit so as to be inclined with respect to the mounting surface, and the fixed unit includes the rotating unit. A drive source for rotating the rotating unit is provided in a space between the rotating unit and the mounting surface generated by the inclination of the unit.

Here, the space in which the driving source is arranged will be described with reference to FIG. Referring to FIG.
00 is inclined with respect to the mounting surface 501 by an angle α.

The space in which the driving source is disposed is a space between the rotating section 500 and the mounting surface 501 caused by the inclination of the rotating section 500 as shown by hatching in FIG. The hatched part in FIG. 13 is shown as a space from the surface 503 of the rotating part 500 to the mounting surface 501,
Since 0 has a thickness, this space is a space excluding this thick portion.

The surface 503 of the rotating unit 500 is a surface on which the objective lens 502 is mounted, and is a bowl-shaped curved surface. Therefore, as shown in FIG. 12, the cylindrical cover 432 fixed to the rotating part 430 and protruding greatly from the surface of the rotating part 430 rotates together with the rotating part 430. It does not hit.

Since the driving source is arranged by utilizing the space between the rotating part and the mounting surface, the driving source can be arranged without protruding outside the fixed part and the rotating part.

The electric revolver according to the second aspect of the present invention
2. The electric revolver according to claim 1, wherein the drive source has a rotation axis, and the rotation axis is provided on the fixed part so as to be substantially orthogonal to a rotation center line of the rotation part. 3. And

By arranging the drive source such that the rotation axis of the drive source is substantially perpendicular to the rotation center line of the rotation unit, the drive source can be arranged without protruding outside the fixed unit and the rotation unit. And a motor with a long and large power can be used.

The electric revolver of the invention according to claim 3 is
3. The electric revolver according to claim 1, wherein the driving source is disposed on a side where the rotating unit is inclined in a direction of the mounting surface with respect to an optical axis of an objective lens disposed in a microscope optical path. 4. It is characterized by the following.

Here, the side where the rotating portion is inclined in the direction of the mounting surface will be described with reference to FIG. FIG. 13 shows the optical axis 504 of the objective lens 502 and the rotation unit 500 attached to the mounting surface 501.
Is a plane view including a point 505 which comes closest to. In FIG. 13, the drive source is disposed on the right side of the optical axis 504, that is, in the space on the side where the rotating unit 500 is inclined in the direction of the mounting surface 501.

With such a configuration, the space between the rotating part and the mounting surface can be effectively utilized, and the size of the fixed part can be minimized.

The electric revolver of the invention according to claim 4 is
3. The electric revolver according to claim 1, wherein the driving source is disposed on a side where the rotating unit is inclined in a direction away from a mounting surface with respect to an optical axis of an objective lens disposed in a microscope optical path. 4. It is characterized by being.

Here, the side opposite to the side where the rotating part is inclined in the direction of the mounting surface will be described with reference to FIG. This FIG.
, The driving source is disposed on the left side of the optical axis 504, that is, in a space indicated by oblique lines inclined in a direction in which the rotating unit 500 is separated from the mounting surface 501.

With this configuration, the space between the rotating part and the mounting surface can be effectively used, and the size of the fixed part can be minimized.

According to a fifth aspect of the present invention, in the microscope having the electric revolver, a fixed portion detachable from the mounting surface of the microscope main body, a plurality of rotatable relative to the fixed portion, A rotating unit capable of mounting an objective lens, wherein the rotating unit is mounted on the fixed unit so as to be inclined with respect to the mounting surface, and the fixed unit is configured such that the rotating unit and the rotating unit are generated by the inclination of the rotating unit. A drive source for rotating the rotating unit is provided in a space between the inclined surface and the inclined surface.

Since the replacement of the objective lens and the operation of the correction ring of the objective lens are easy, operations such as observation using a microscope can be performed efficiently.

A microscope according to a sixth aspect of the present invention is the microscope according to the fifth aspect, wherein the driving source has a rotation axis, and the rotation axis is substantially orthogonal to a rotation center line of the rotation unit. Thus, it is provided on the fixing portion.

Since the drive source is arranged utilizing the space between the rotating part and the mounting surface, the drive source can be arranged without protruding outside the fixed part and the rotating part.

According to a seventh aspect of the present invention, in the microscope according to the fifth or sixth aspect, the driving source is configured such that the rotating part is arranged with respect to an optical axis of an objective lens arranged in a microscope optical path. It is characterized by being arranged on the side inclined in the direction of the mounting surface.

Here, the side where the rotating part is inclined in the direction of the mounting surface will be described with reference to FIG. In FIG. 13, the drive source is disposed on the right side of the optical axis 504, that is, in the space on the side where the rotating unit 500 is inclined in the direction of the mounting surface 501.

According to such a configuration, the space between the rotating part and the mounting surface can be effectively utilized, and the size of the fixed part can be minimized.

[0034] In the microscope according to the eighth aspect of the present invention, in the microscope according to the fifth or sixth aspect, the driving source may be configured such that the rotating part is arranged with respect to an optical axis of an objective lens arranged in a microscope optical path. The microscope according to claim 5, wherein the microscope is arranged on a side inclined in a direction away from the mounting surface.

Here, the side opposite to the side where the rotating part is inclined in the direction of the mounting surface will be described with reference to FIG. This FIG.
, The driving source is disposed on the left side of the optical axis 504, that is, in a space indicated by oblique lines inclined in a direction in which the rotating unit 500 is separated from the mounting surface 501.

With this configuration, the space between the rotating part and the mounting surface can be effectively used, and the size of the fixed part can be minimized.

[0037]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a microscope provided with an electric revolver according to a first embodiment of the present invention.

The microscope 1 includes an arm 2, a lens barrel 4 having an eyepiece 3 mounted on an upper portion of the arm 2, an electric revolver 10 having a plurality of objective lenses 11 mounted on a lower surface of the arm 2, A stage 5 that moves up and down along the two upright portions.

FIG. 2 is a side view of the electric revolver according to the first embodiment of the present invention, with a part cut away, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. FIG. 5 is a view showing a modification of the electric revolver according to the first embodiment of the present invention.

The electric revolver 10 includes a fixed part 20, a rotating part 30, and a motor (drive source) 40, and is detachably attached to the attachment surface b of the arm 2.

The fixing portion 20 includes a mounting portion 20a for attaching to the arm 2.
And a step portion 26 on the lower surface and a cylindrical portion 24 at the center.

One end of a spring 21 constituting a click mechanism is attached to the fixing portion 20 with a screw 22. The other end of the spring 21 supports a steel ball 23, and the rotating portion 30 is positioned by dropping the steel ball 23 into a click groove (not shown).

Further, a cylindrical portion 24 protruding downward is formed at the center of the fixed portion 20, and a central shaft 25 serving as a rotation center of the rotating portion 30 is screwed to the cylindrical portion 24. A tapered surface 25a is formed at the lower end of the central shaft 25.

At the center of the rotating part 30, the cylindrical part 24 and the central shaft 2
5 is formed, and a bearing ball 41a is arranged to be rollable between the tapered surface 25a and the inner peripheral surface of the center hole 31.

A bearing ball 41b can roll between a step 26 formed on the outer periphery of the lower surface of the fixed portion 20 and a step 32 formed on the inner periphery of the edge of the rotating portion 30. Are located in

With this configuration, the rotating part 30 is fixed to the fixed part 20.
Is rotatably supported with respect to.

A plurality of mounting holes 33 for mounting a plurality of objective lenses 11 (see FIG. 1) are formed in the rotating section 30 at equal intervals in the circumferential direction.

Further, a gear ring 43 on which an internal gear is formed is provided on the outer peripheral portion of the upper surface of the rotating portion 30.

The motor 40 is arranged so that the rotation center 40a is orthogonal to the rotation center line L of the revolver. The support member 44 that supports the motor 40 is fixed to the fixing unit 20 by two screws 42a and 42b.

In this embodiment, the motor 40 is arranged in a space between the rotating part 30 of the revolver and the mounting surface b, substantially at the center of the revolver 10 (the rotating part 30).
Specifically, as shown in FIG. 2, it is arranged in a space between the rolling surface 26a of the bearing ball 41b that defines the rotating surface of the rotating part 30 and the mounting surface b. More specifically, the motor 40 includes a space (area) surrounded by a plane including the rolling surface 26a, the mounting surface b, and the optical axis ax of the bearing ball 41b and parallel to the intersection of the mounting surface b and the rolling surface 26a. ).

The motor 40 is connected to the rotating part 30 and the mounting surface b.
And the rolling surface 26
a may be arranged so as to protrude from the rotating part 30 side from a. Although the outer diameter of the motor 40 is limited by the step 26 of the revolver and the mounting surface b, the motor 40 has a margin in the length direction (the direction orthogonal to the plane of FIG. 2), so that the motor 40 is small and long. Should be used.

A first bevel gear 45 is attached to the rotating shaft 41 of the motor 40. The first bevel gear 45 is prevented from coming off and rotating by a screw 45a.

The first bevel gear 45 meshes with a second bevel gear 46, and the second bevel gear 46 has a rotating shaft 49.
One end of the motor (perpendicular to the rotation center 40a of the motor 40) is prevented from coming off and rotating by a screw 46a.

A spur gear 48 is provided at the other end of the rotating shaft 49, and the spur gear 48 meshes with the gear ring 43 on which the internal gear is formed.

The internal gear of the gear ring 43 has a very large gear ratio as compared with the first bevel gear 45, the second bevel gear 46 and the spur gear 48, so that a large rotation ratio can be obtained. . Here, since the first bevel gear 45 and the second bevel gear 46 are used, smooth rotation can be obtained.

The electric revolver 10 having the above configuration operates as follows.

When the motor 40 is rotated, the output of the motor 40 is transmitted to the gear ring 43 via the first bevel gear 45, the second bevel gear 46 and the spur gear 48. for that reason,
The rotating unit 30 rotates in a predetermined direction, and the plurality of objective lenses 11 mounted in the mounting holes 33 of the rotating unit 30 can be sequentially switched at a predetermined speed according to the reduction ratio.

According to this embodiment, it is possible to effectively utilize the dead space inside the revolver 10 caused by the rotation part 30 being inclined with respect to the mounting surface b. In addition, the motor 40 is disposed so as to fit in the space between the rotating unit 30 and the mounting surface b, and does not protrude significantly from the rotating unit holding the objective lens unlike a conventional revolver.

Therefore, the strength of the arm is not sacrificed as in the related art, and the workability when exchanging the objective lens or operating the correction ring of the objective lens is not impaired.

Further, the electric revolver 10 can be realized in the same shape as the manual revolver, the design restrictions for mounting the microscope on the arm 2 can be reduced, the components can be shared, and the manufacturing cost can be reduced. be able to.

In the above embodiment, the motor 4
The output of 0 is transmitted to the gear ring 43 via the first bevel gear 45, the second bevel gear 46 and the spur gear 48,
As shown in the modification of FIG. 5, the second bevel gear 46 and the spur gear 48 are omitted, and the first bevel gear 145 is
May be directly transmitted to the gear ring 143.

FIG. 6 is a side view showing a part of an electric revolver according to a second embodiment of the present invention, FIG. 7 is a sectional view taken along the line CC of FIG. 6, and FIG. is there.

The fixing part 220 of the revolver is attached to the arm of the microscope. The fixed part 220 has a step part 226, and holds the rotating part 230 rotatably via the bearing ball 241b.

As shown in FIG. 7, the motor 240 is arranged so that the rotation center 240a of the motor is orthogonal to the rotation center L of the rotating part 230 of the revolver. The support member 244 holds the motor 240 and
It is fixed to the fixing part 220 by 2a and 242b.

A first bevel gear 245 is attached to the rotating shaft 241 of the motor 240, and the first bevel gear 245
Is stopped and prevented from rotating by a screw 245a.

The first bevel gear 245 meshes with the second bevel gear 246. The second bevel gear 246 is provided on the rotation shaft 249, and is prevented from coming off and rotating by a screw 246a.

The rotation shaft 249 is the rotation center 2 of the motor 240
The shaft extends in a direction perpendicular to 40a, and a spur gear 248 is provided at an end of the shaft. This spur gear 248 is
It engages with a gear ring 243 fixed inside S.

Therefore, the rotational force of the motor 240 is controlled by the first bevel gear 245, the second bevel gear 246, and the rotating shaft 2.
The power is transmitted to the gear ring 243 via the gear 49 and the spur gear 248 to rotate the rotating unit 230 together with the gear ring 243.

The gear of the gear ring 243 has a very large number of teeth as compared with the first bevel gear 245, the second bevel gear 246, and the spur gear 248, so that a large rotation ratio can be obtained.

As shown in FIG. 6, the motor 240 is arranged in a space between the rotating part 230 and the mounting surface b. Specifically, it is arranged in a space between the rolling surface 226a of the bearing ball and the mounting surface b.

Therefore, the dead space inside the revolver caused by the rotation part 230 being inclined with respect to the mounting surface b can be effectively used.

As shown in FIG. 6, the motor 40 in this embodiment is disposed on the left side of the optical axis ax of the objective lens disposed in the microscope optical path (on the side where the rotating part 230 is separated from the mounting surface b). Therefore, as shown in FIG. 8, a part of the motor 240 slightly protrudes from the rotating part 230, but since the distance between the rotating part 230 and the mounting surface b is large, the outer diameter of the motor 240 is smaller than that of the first embodiment. A large motor can be arranged.

[0074]

As described above, according to the electric revolver according to the first aspect of the present invention, the drive source can be arranged without protruding outside the fixed portion and the rotating portion. The electric revolver can be realized in the same space as the revolver, and the strength of the arm is sacrificed as before, and the workability when replacing the objective lens or operating the correction ring of the objective lens The size of the revolver is the same as a manual revolver, and there are fewer restrictions on the design of the revolver for mounting on the microscope body. Can be planned.

According to the electric revolver according to the second aspect of the present invention, the drive source is arranged so that the rotation axis of the drive source is substantially orthogonal to the rotation center line of the rotating unit, so that the drive source is fixed to the fixed unit and the rotating unit. Not only can it be arranged without protruding out of the section, but also a motor having a large overall length and a large power can be used.

According to the electric revolver of the third aspect, the space between the rotating part and the mounting surface can be effectively utilized, and the size of the fixed part can be minimized. .

According to the electric revolver of the fourth aspect, the space between the rotating part and the mounting surface can be effectively utilized, and the size of the fixing part can be minimized. . Further, since the distance between the rotating part and the mounting surface is larger than in the case of the third aspect, a drive source having a larger outer diameter can be arranged as compared with the third aspect.

According to the microscope of the fifth aspect,
Since the replacement of the objective lens and the operation of the correction ring of the objective lens are easy, operations such as observation using a microscope can be performed efficiently.

According to the microscope of the sixth aspect,
Since the drive source is arranged using the space between the rotating part and the mounting surface, the drive source can be arranged without protruding outside the fixed part and the rotating part.

According to the microscope of the seventh aspect,
The space between the rotating part and the mounting surface can be effectively utilized, and the size of the fixed part can be minimized.

According to the microscope of the invention described in claim 8,
The space between the rotating part and the mounting surface can be effectively utilized, and the size of the fixed part can be minimized. Further, the distance between the rotating part and the mounting surface is set to be 7
Therefore, a drive source having a larger outer diameter can be provided as compared with the seventh aspect.

[Brief description of the drawings]

FIG. 1 is a side view of a microscope provided with an electric revolver according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway side view of the electric revolver according to the first embodiment of the present invention.

FIG. 3 is a sectional view taken along the line AA of FIG. 2;

FIG. 4 is a view on arrow B in FIG. 2;

FIG. 5 is a view showing a modification of the electric revolver according to the first embodiment of the present invention.

FIG. 6 is a side view showing a part of an electric revolver according to a second embodiment of the present invention.

FIG. 7 is a sectional view taken along the line CC of FIG. 6;

FIG. 8 is a view as seen from an arrow D in FIG. 6;

FIG. 9 is a side view showing a part of a microscope equipped with a conventional electric revolver.

FIG. 10 is a side view in which a part of a conventional electric revolver is cut away.

FIG. 11 is a side view showing a part of a conventional microscope equipped with another electric revolver.

FIG. 12 is a sectional view of the electric revolver.

FIG. 13 is a diagram illustrating a relationship between a mounting surface and a rotating unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microscope 2 Arm 10 Electric revolver 11 Objective lens 20 Fixed part 30 Rotating part 40 Motor (drive source) 41 Rotation axis 50 Microscope main body ax Optical axis b Mounting surface L Rotation center line

Claims (8)

[Claims] 1. An electric revolver comprising: a fixed portion detachable from a mounting surface of a microscope main body; and a rotating portion rotatable with respect to the fixed portion and capable of mounting a plurality of objective lenses. The rotating portion is attached to the fixed portion so as to be inclined with respect to the mounting surface, and the fixed portion places the rotating portion in a space between the rotating portion and the mounting surface caused by the inclination of the rotating portion. An electric revolver comprising a driving source for rotating. 2. The apparatus according to claim 1, wherein the drive source has a rotation axis, and the rotation axis is provided on the fixed part so as to be substantially orthogonal to a rotation center line of the rotation part.
The electric revolver according to the above. 3. The apparatus according to claim 1, wherein the driving source is arranged on a side where the rotating section is inclined in a direction of the mounting surface with respect to an optical axis of an objective lens arranged in a microscope optical path. 3. The electric revolver according to 1 or 2. 4. The apparatus according to claim 1, wherein the driving source is disposed on a side where the rotating portion is inclined in a direction away from a mounting surface with respect to an optical axis of an objective lens disposed in a microscope optical path. Item 3. An electric revolver according to item 1 or 2. 5. A microscope having an electric revolver, comprising: a fixed portion detachable from a mounting surface of a microscope main body; and a rotating portion rotatable with respect to the fixed portion and capable of mounting a plurality of objective lenses. The rotating part is attached to the fixed part so as to be inclined with respect to the mounting surface, and the fixed part is provided in a space between the rotating part and the inclined surface caused by the inclination of the rotating part. A microscope comprising a drive source for rotating a rotating unit. 6. The drive unit according to claim 5, wherein the drive source has a rotation axis, and the rotation axis is provided on the fixed part so as to be substantially orthogonal to a rotation center line of the rotation part.
The microscope according to 1. 7. The apparatus according to claim 1, wherein the driving source is arranged on a side where the rotating portion is inclined in a direction of the mounting surface with respect to an optical axis of an objective lens arranged in a microscope optical path. The microscope according to 5 or 6. 8. The apparatus according to claim 1, wherein the driving source is arranged on a side where the rotating section is inclined in a direction away from a mounting surface with respect to an optical axis of an objective lens arranged in a microscope optical path. Item 7. The microscope according to Item 5 or 6.