JPH0720653Y2 - Microscope mount - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a microscope pedestal having a built-in electrical component such as a surgical microscope.

[Prior Art] Conventionally, the one that has a built-in electrical component such as a surgical microscope is
A power source, an electric wire, and the like for driving a motor for a lighting device, a magnification changer, and a focusing lens are built in the column.

That is, as shown in FIG. 4, the microscope body 1 of the surgical microscope is used.
Is supported by the first arm 2 and is movable together with the second arm 3. The second arm 3 has a base 4
It is rotatably provided by a column 5 standing upright. The support 5 and the base 4 form a pedestal portion. The support 5 is, for example, a hollow support main body 7 having a notched front side surface, and a cover 8 formed so as to cover the notched front side surface. It is formed by and.

Then, in the hollow pillar 5, a power source (not shown), a power line 9 for a lighting device and the like, and a control signal line 10 are built in as shown in FIG.

FIG. 5 is a cross-section of the support column 5, in which the support body 7 and the cover 8 are fixed at predetermined positions by screws 6 to be integrated, and in addition to the power supply line 9 and the signal line 10, a transformer substrate (not shown) is provided. And so on.

As described above, in the case where the electric components are stored inside the device, in order to prevent electric shock, it is necessary to ground the portion where the person can easily touch, that is, the column main body 7 and the cover 8, which is legal. Also has safety standards. In particular, in the case of a surgical microscope, not only the user but also the patient is at risk of death.

The pillar main body 7 can be easily grounded, but in order to ground the cover 8 which is detachably provided, as shown in FIG. 5, conduction is achieved at the contact portion A between the main body and the cover, or as shown in FIG. In addition, the contact portions A are connected to each other by the grounding wire 11 or the like so as to be positively connected.

[Problems to be Solved by the Invention] However, in the case of FIG. 5, there is a problem that the area of the contact portion A is small and the screw 6 easily separates when loosened, resulting in lack of reliability in the grounded state. Was there. In particular, the pedestal portion not only supports the microscope main body 1 and the arms 2 and 3, but also applies a great load to freely move the microscope main body, causing a slight deformation of the column main body 7. Due to this deformation, the screw 6 was loosened and the cover 8 was very likely to be separated at the contact portion A. For this reason, when the grounding wire 11 is used for grounding as shown in FIG. 6, there is no problem such as grounding failure, but when the electrical component fails, the cover 8 is used for repair.
It is necessary to remove the ground wire 11 as well as remove it, which is not only troublesome but also hinders repairs in an emergency.

An object of the present invention is to solve the above problems and to provide a highly reliable microscope pedestal capable of reliably grounding with a simple structure.

[Means and Actions for Solving the Proposal] This invention provides reliable grounding by providing an engaging portion on the support body and the cover to increase the contact area.

[Embodiment] FIG. 1 is a first embodiment of the present invention, in which a cover 13 for covering an opening of a pillar main body 12 having a U-shaped cross section has an engaging portion 13a which contacts an outer surface of the pillar main body 12. Have Above cover 13
In the engaging portions 13a provided on both sides of the
It has a fixing portion 13b for integrally fixing and.

Although not shown, the pillar body is grounded, and various electric wires, transformers, boards, power supplies, etc. are also incorporated.

Further, in order to ensure the engagement between the strut body 12 and the cover 13, the outer width of the strut body 12 is equal to the inner width of the cover 13, or the inner width of the cover 13 is made slightly wider.

When the cover 13 formed in this way is attached to the pillar body 12, the inner surface of the cover 13 is fitted and engaged while rubbing the outer surface of the pillar body 12, so that the engaging portions B are made of thin oxide films or the like. Contact with non-conducting substances removed. Then, after fitting the cover 13 to a predetermined position, the fixing portion 13b
Screws 14 are screwed onto the support body 12, and the support body 12 and the cover 13 are fixed in a state where the engagement portion B is in close contact with the support body 12 to form a pedestal.

By making the mount in this way, the contact area between the support body and the engaging portion of the cover is large, and the contact area is dense, and the oxide film on the contact surface is peeled off due to the frictional action at the time of insertion, so that reliable conduction can be achieved. A reliable grounding can be performed.

Further, when the cover is attached, since the support main body and the cover are slightly changed at the time of attachment, even if the engagement accuracy of the engagement portion is relatively rough, it is possible to bring them into close contact with each other.

Further, since the contact area at the engaging portion is large, even if the strut body is deformed to some extent by a load, the contact state is not impaired, reliable conduction is possible, and there is no possibility of ground failure.

FIG. 2 shows a second embodiment of the present invention in which the shape of the engaging portion 13c of the cover 13 is different from that of the first embodiment.

That is, when the cover 13 is applied, the inner surface of the pillar body 12 is covered.
A pair of side walls is provided so that the engaging portions 13c of 13 come into contact with each other.

In this case, since the engaging portion 13c of the cover 13 is inserted into the pillar body 12, the fixing portion 12a between the cover 13 and the pillar body 12 is fixed.
Is provided on the pillar body 12.

The pedestal composed of the pillar main body 12 and the cover 13 formed in this way is obtained by integrally fixing the fixing portion 12a with the screw 14.
Similar to the above-described embodiment, it is possible to ensure a conducting action at the engaging portion B and perform highly reliable grounding.

Moreover, when the pillar main body 12 is covered, there is no portion protruding outward, and the size can be reduced.

FIG. 3 shows a third embodiment of the present invention, in which strip side plate-shaped metal side plates 15 are provided in advance on the inner surface of the side wall of the opening of the column body 12, and the cover 13 is fixed to the side plates 15. Is.

That is, the side plate 15 is fixed to the inner wall of the strut body 12 by welding or the like,
The side plate 15 is partly projected while ensuring the electrical connection, and the cover 13 is fixed to the projecting part with screws 14.

By forming in this way, the pillar body 12 and the cover 13
The electrical connection between the cover 13 and the side plate 15 is reliably performed through the engaging portion B and the fixing screw.

Also in this case, as in the second embodiment, there is no unnecessary protruding portion, and not only the size and appearance are improved, but also the side plate is provided in the engaging portion, so the rigidity of the gantry becomes high.

When the rigidity experiment was conducted in the third example, the amount of deformation due to the applied load was half or less of that in the above example.

Therefore, as shown in FIG. 4, the amount of deformation of the arms, microscope main body, etc. with respect to the load is reduced, and the contact surface of the engaging portion for grounding continuity may be separated or the screw may be loosened. It was also found that the reliability was relatively low and the grounding reliability of the cover was extremely high.

The invention is not limited to the above embodiment, but the side plates may be provided outside the pillar body, and the engaging portions of the side plates and the cover may have inner and outer surfaces alternated or interchanged.

[Effect of the device] According to this device, the cover forming a part of the pedestal can be easily grounded while being easily attached and detached to protect the operator and the patient from the danger of electric shock, and quick repairs in case of failure etc. Can be done.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of the present invention, FIGS. 2 to 3 are diagrams for explaining another embodiment of the present invention, and FIGS. 4 to 6 are respectively. It is a figure for demonstrating a prior art. 12 …… Support body 13 …… Cover 14 …… Screw B …… Engagement part

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroshi Fujiwara 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Asahi Ishikawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. (72) Inventor Kosaku Tsuboshima 2-43-2 Hatagaya, Shibuya-ku, Tokyo No. 2 Olympus Optical Co., Ltd. (72) Takashi Nagano 2-43 Hatagaya, Shibuya-ku, Tokyo 2 Olympus Optical Co., Ltd. (72) Inventor Shigeo Tokunaga 2-43-2 Hatagaya, Shibuya-ku, Tokyo 2 Olympus Optical Co., Ltd. (72) Inventor Masahisa Kanada 2-43 Hatagaya, Shibuya-ku, Tokyo No. 2 Olympus Optical Industry Co., Ltd. (72) Creator Toshiyuki Tsunoda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus In Manabu Industrial Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A pillar main body having a hollow shape in which at least one side surface is notched and containing electric components and the like, and a cover portion for covering the notched portion of the pillar main body, and the pillar main body cover portion is electrically connected to each other. A microscope mount characterized in that it is provided with an engaging portion for connecting to and engaging with.