JPH07318808A - Revolver for microscope - Google Patents

Abstract

PURPOSE:To prevent lack of oil in a circumferential part arranged with the positioning member of a revolver revolving member by providing a revolver body with a lubricating material leveling-off means which levels off the lubricating material applied at this circumferential part. CONSTITUTION:A steel ball 8 slides on the circumferential part 4 while this steel ball is energized and pressed by a leaf spring 7 until the steel ball is dropped into a positioning groove 5 when the revolver revolving member 2 is revolved with respect to revolver body 1 around a revolving shaft 9. The steel ball 8 engages with the positioning groove 5 in this position and the revolution of the revolver revolving member 2 stops. Positioning is thus executed. The grease applied to the circumferential part 4 by sliding of the steel ball 8 on the circumferential part 4 is scraped apart by the steel ball. The lubricating material leveling-off member 12 slides on the circumferential part 4 while the member is energized and lightly pressed by the spring part thereon when the revolver revolving member 2 revolves. The sliding part of the member scraps together the grease scraped apart by the steel ball 8 and applies the grease by leveling off the thickness thereof, thereby filling the positioning groove 5. This operation is iteratively repeated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microscope revolver.

[0002]

2. Description of the Related Art An example of a conventional microscope revolver is shown in FIG.
And as shown in FIG. A revolver body 1 is fixed to a microscope body (not shown) and rotatably supports a revolver rotating member 2. A plurality of objective lenses 3 are attached to the revolver rotating member 2, and the optical axis of the objective lens 3 is made to coincide with the optical axis of the microscope main body (not shown) sequentially by the rotation of the revolver rotating member 2. Positioning grooves 5 are formed in the circumferential portion 4 of the revolver rotating member 2 in the same number as the number of objective lenses 3 to be mounted. A steel ball 8 is attached to the tip of a leaf spring 7 fixed to the revolver body 1 by a screw 6.
Is fixed. The positioning groove 5 moves with the rotation of the revolver rotating member 2, and the steel ball 8 slides on the circumferential portion 4. When the optical axis of the objective lens 3 coincides with the optical axis of the microscope body (not shown), the steel ball 8 is additionally engaged with the positioning groove 5 by a so-called click mechanism, and the rotation of the revolver rotating member 2 is stopped. Positioning is performed. Lubricating grease is applied to the circumferential portion 4 of the revolver rotating member 2, and the steel ball 8
Of the steel balls 8 and the circumferential portion 4 due to the sliding.

Another example of a conventional microscope revolver is one in which positioning is performed by a click mechanism in which a steel ball provided on a revolver rotating member engages with a groove portion of a leaf spring provided on the revolver body. there were.

[0004]

By applying such a lubricating grease, the effect of preventing wear has been improved to some extent in the relatively early use stage of the revolver, or when the revolver is used less frequently. However, when used for a long period of time or when the frequency of use increases, the steel balls scrape off the lubricating grease, causing oil shortage in the steel balls and the circumferential part, especially in the vicinity of the positioning groove, and especially wear near the positioning groove. The wear was so severe that it was not possible to prevent wear and the positioning accuracy was reduced. Also, in other conventional examples, it was not possible to prevent severe wear of the groove portions of the steel balls and the leaf springs.

In view of the above problems, it is an object of the present invention to provide a microscope revolver in which the positioning member and the engaging member are prevented from running out of oil and high positioning accuracy is maintained.

[0006]

According to a first aspect of the present invention, there is provided a revolver body fixed to a microscope body, and a revolver rotating member rotatably supported by the revolver body and having an objective lens mounted thereon. When the optical axis of the objective lens coincides with the optical axis of the microscope body, the positioning member arranged on the revolver rotating member and the engaging member arranged on the revolver body are additionally engaged. In the revolver for a microscope in which the rotation of the revolver rotating member is stopped and the positioning is performed, the revolver body uniformly applies the lubricant applied to the circumferential portion of the revolver rotating member where the positioning member is disposed. It has means for equalizing the lubricant.

According to a second aspect of the present invention, there is provided a revolver main body fixed to the microscope main body, and a revolver rotating member rotatably supported by the revolver main body and having an objective lens mounted thereon. When the axis coincides with the optical axis of the microscope main body, the engaging member arranged on the revolver rotating member and the positioning member arranged on the revolver main body are additionally engaged with each other, and the revolver rotating member is formed. In the revolver for microscopes where the rotation of the
The revolver rotating member has a lubricant equalizing means for evenly distributing the lubricant applied to the positioning member of the revolver body.

[0008]

According to the first aspect of the present invention, the lubricant equalizing means of the revolver body evenly smoothes the lubricant applied to the circumferential portion where the positioning member of the revolver rotating member is arranged. , Prevents oil from running out on the circumference. According to the second aspect of the present invention, the lubricant equalizing means included in the revolver rotating member evens out the lubricant applied to the positioning member of the revolver body, and prevents the positioning member from running out of oil.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a sectional view of one embodiment, and FIG. 2 is a plan view.
The revolver body 1 is fixed to the microscope body (not shown),
A rotary shaft 9 is fixed to the revolver body 1. The revolver rotating member 2 is rotatably supported on the rotating shaft 9 via bearings 10 and 11. The revolver rotating member 2 is provided with a plurality of objective lens mounting holes 2a, each mounting hole is provided with an objective lens 3, and the optical axis of the objective lens 3 is sequentially rotated by the rotation of the revolver rotating member 2 (not shown). ) It is supposed to coincide with the optical axis.

On the circumferential portion 4 of the revolver rotating member 2, five positioning grooves 5 are provided in the same number as the number of mountable objective lenses 3. The positioning groove 5 is engraved in a gently raised portion 4a of the circumferential portion 4 as shown in a partial side view of the circumferential portion in FIG. A steel ball 8 is fixed to the tip of a leaf spring 7 fixed to the revolver body 1 with screws 6. 4 and 5 show a state where the steel ball 8 is at a high position of the raised portion 4a, and FIG. 6 shows a state where the steel ball 8 is engaged with the positioning groove 5. The steel ball 8 is pressed by the elasticity of the leaf spring 7 onto the circumferential portion 4 including the raised portion 4a and the positioning groove 5.

The lubricant leveling member 12 is composed of a spring portion 12a and a sliding contact portion 12b. The spring portion 12a is fixed to the revolver body 1 by a screw 13 and is in contact with the circumferential portion 4 at the sliding contact portion 12b. 7, FIG. 8, FIG. 9, and FIG. 10, respectively, side views, a front view of the lubricant leveling member 12 in a high position of the raised portion 4a, and the lubricant leveling member 12 engaged with the positioning groove 5. It has a shape as shown in the front view and the plan view in the opened state. The spring portion 12a has an appropriate elasticity, and the sliding contact portion 12b gently presses the circumferential portion 4 including the raised portion 4a and the positioning groove 5.

Next, the operation will be described. When the revolver rotating member 2 is rotated about the rotating shaft 9 with respect to the revolver main body 1, the circumferential portion 4 including the raised portion 4a and the positioning groove 5 rotates together with the revolver rotating member 2, and the steel ball 8 circles. The leaf spring 7 urges the peripheral portion 4 to slide while pressing it. The steel ball 8 goes up the raised portion 4 a and falls into the positioning groove 5. At this position, the steel ball 8 and the positioning groove 5 are engaged, the rotation of the revolver rotating member 2 is stopped, and the positioning is performed. Since the sliding of the steel ball 8 on the circumferential portion 4 is performed while being pressed by the leaf spring 7, the grease applied on the circumferential portion 4 is scraped off by the steel ball 8. When the revolver rotation member 2 rotates, the lubricant leveling member 12 slides on the circumferential portion 4 while being lightly pressed by the spring portion 12a, and the sliding contact portion 12b is moved by the steel ball 8. The grease that has been scraped off is scraped and applied with a uniform thickness to fill the positioning groove 5. This operation is repeated repeatedly.

By repeating this operation repeatedly, the portion on the circumference including the positioning groove 5 does not run out of oil, and the steel ball 8, the raised portion 4a and the circumferential portion 4 including the positioning groove 5 are not worn. It is prevented, the durability of the revolver of the microscope is significantly improved, and the positioning accuracy is maintained.

Another mode of the lubricant leveling member according to this embodiment will be described with reference to FIG. The lubricant leveling member 15 has a brush-like sliding contact portion 1 at the tip of the spring portion 15a.
5 b is provided, and the sliding contact portion 15 b slides on the circumferential portion 4. In this structure, the sliding contact portion 15b has a brush-like shape and has an appropriate elasticity, and is suitable for scraping grease and applying it with a uniform thickness.

Next, another embodiment of the present invention will be described with reference to FIGS.
Will be described. Since the cross section of this embodiment is similar to that of the previous embodiment, FIG. 1 is referred to. The present embodiment is the same as the above-mentioned one embodiment except that two lubricant leveling members 12 are provided on both sides of the steel ball 8 fixed to the tip of the leaf spring 7. Therefore, detailed description will be omitted.
In this embodiment, the lubricant leveling member 12 can be easily adjusted by the steel ball 8 regardless of the rotating direction of the revolver rotating member 2.
It is possible to scrape off the grease that has been scraped off by, and apply the grease with a uniform thickness.

Next, still another embodiment of the present invention will be described with reference to FIG. Detailed description of the same or similar points as those of the above-described embodiment will be omitted. A leaf spring 16 is fixed to the revolver body 1 with screws 17, and the tip of the leaf spring 16 is divided into three parts. A steel ball (not shown) is provided at the central tip portion 18 so as to engage with the positioning groove 5 of the circumferential portion 4 of the revolver rotating member 2. In addition, sliding contact portions 19a are provided on the tip portions 19 on both sides and are in sliding contact with the circumferential portion 4. In this embodiment, no matter which direction the revolver rotating member rotates, the grease can be easily scraped off and the grease can be applied with a uniform thickness. Further, one steel ball and one sliding contact portion can be applied. It can be manufactured at low cost because it is held by the spring.

Next, still another embodiment of the present invention will be described with reference to FIGS. Detailed description of the same or similar points as those of the above-described embodiment will be omitted. A leaf spring 21 is fixed to the revolver body 1 by a screw 22, and a groove portion 23 is provided at the tip of the screw 22. Circular part 4 of revolver rotating member 2
There are five steel balls 24 in the
It is buried under the condition of a. In the circumferential portion 4, there are also steel balls 24.
Between the steel ball 24 and the steel ball 24, a lubricant leveling member 25 is provided with a screw 26.
It is fixed by.

Next, the operation will be described. When the revolver rotating member 2 is rotated, the plurality of steel balls 24 are rotated together with the revolver rotating member 2 and the leaf spring 21 comes over the steel ball 24, and once it rides, the head portion of the steel ball 24 is inserted into the groove 23. Two
4a falls and stops, and positioning is performed. When the revolver rotating member 2 is further rotated, the plate spring 21 comes into contact with and slides on the lubricant leveling member 25. Therefore, the lubricant leveling member 25 is applied to the plate spring 21 and scraped off by the steel balls 24. Scrape the grease and apply it to a uniform thickness.

By repeating this operation repeatedly, the leaf spring 21
Does not run out of oil, wear of the leaf spring 21 and the steel ball 24 is prevented, the durability of the revolver of the microscope is significantly improved, and the positioning accuracy is maintained.

[0020]

According to the invention as set forth in claim 1, the lubricant equalizing means provided in the revolver main body evenly applies the lubricant applied to the circumferential portion where the positioning member of the revolver rotating member is arranged. The smoothing prevents the positioning member and the engaging member from running out of oil, and maintains high positioning accuracy. According to the invention described in claim 2, since the lubricant equalizing means included in the revolver rotating member evenly distributes the lubricant applied to the circumferential portion of the revolver body where the positioning member is disposed, the positioning member Also, the engagement member is prevented from running out of oil, and high positioning accuracy is maintained.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a plan view of an embodiment of the present invention.

FIG. 3 is a partial side view of a revolver rotating member according to an embodiment of the present invention.

FIG. 4 is a diagram showing a relationship between an engaging member and a circumferential portion according to an embodiment of the present invention.

FIG. 5 is a diagram showing a relationship between an engaging member and a circumferential portion according to an embodiment of the present invention.

FIG. 6 is a diagram showing a relationship between an engaging member and a circumferential portion according to an embodiment of the present invention.

FIG. 7 is a diagram showing a relationship between a lubricant leveling member and a circumferential portion according to an embodiment of the present invention.

FIG. 8 is a diagram showing a relationship between a lubricant leveling member and a circumferential portion according to an embodiment of the present invention.

FIG. 9 is a diagram showing a relationship between a lubricant leveling member and a circumferential portion according to an embodiment of the present invention.

FIG. 10 is a plan view of a lubricant leveling member according to an embodiment of the present invention.

FIG. 11 is a side view of a lubricant leveling member according to another embodiment of the present invention.

FIG. 12 is a plan view of another embodiment of the present invention.

FIG. 13 is a plan view of another embodiment of the present invention.

FIG. 14 is a plan view of another embodiment of the present invention.

FIG. 15 is a sectional view of another embodiment of the present invention.

FIG. 16 is a diagram showing a relationship between a lubricant leveling member and a leaf spring according to another embodiment of the present invention.

FIG. 17 is a plan view of a conventional example.

FIG. 18 is a side view of a conventional example.

[Explanation of symbols]

 1 ... Revolver body 2 ... Revolver rotating member 3 ... Objective lens 4 ... Circumferential portion 4a ... Part 5 ... Positioning groove 7 ... Leaf spring 8 ... Steel balls 12, 15 ... Lubricant leveling members 12a, 15a ... Spring parts 12b, 15b ... Sliding contact parts

Claims (2)

[Claims] 1. A revolver body fixed to a microscope body,
A revolver rotating member that is rotatably supported by the revolver body and has an objective lens attached thereto, and is disposed on the revolver rotating member when the optical axis of the objective lens matches the optical axis of the microscope body. In a revolver for a microscope in which a positioning member and an engaging member disposed on the revolver body are additionally engaged to perform positioning by stopping rotation of the revolver rotating member, the revolver body includes the revolver body. A revolver for a microscope, comprising a lubricant equalizing means for evenly distributing the lubricant applied to the circumferential portion of the rotating member on which the positioning member is arranged. 2. A revolver body fixed to the microscope body,
A revolver rotating member that is rotatably supported by the revolver body and has an objective lens attached thereto, and is disposed on the revolver rotating member when the optical axis of the objective lens matches the optical axis of the microscope body. In a revolver for a microscope in which an engaging member and a positioning member disposed in the revolver body are additionally engaged, and the revolver rotating member stops rotation for positioning, the revolver rotating member is A revolver for a microscope, comprising a lubricant equalizing means for evenly distributing the lubricant applied to the positioning member of the revolver body.