JP2591311Y2 - Dental care ratchet wrench - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ratchet wrench used for dental treatment.

[0002]

2. Description of the Related Art When a cylindrical artificial dental root is inserted into a hole formed in a jaw bone, it is necessary to perform a unidirectional rotational movement on the artificial dental root with a large force. Therefore, a ratchet wrench tool is used which causes the artificial tooth root to rotate in one direction only by repeating the rotational movement of about 1/2 rotation or less.

[0003]

[Problem to be Solved by the Invention] Such a wrench tool is not only a tool for inserting an artificial tooth root, but also can be rotated in the opposite direction to pull out the artificial tooth root inserted into the jaw bone. Such a structure is also required.

[0004]

SUMMARY OF THE INVENTION In view of the above, the present invention has a long handle, and one end of the handle is provided with a cylindrical gear portion provided on an upper portion of a holding member for holding an upper portion of the artificial tooth root. A hole for a cylindrical gear for insertion is formed, one end protrudes from the hole for the cylindrical gear, and the other end is turned over by a dental treatment wrench which is a rotating member fixed to the side surface of the handle. As a result, a rotational motion in the opposite direction was obtained, realizing a wrench tool with excellent operability.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, (11) is a hole for a cylindrical gear,
This is a part for inserting a cylindrical gear part formed on the upper part of the holding member for holding the upper part of the artificial tooth root. (12) is a handle, which forms a grip. (13) is a hole, which is provided on the side surface of the hole for the cylindrical gear so as to penetrate inside and outside.
(14) is a rotating member, one end of which protrudes into the cylindrical gear hole (11) through the hole (13), and the other end is fixed to the side surface of the handle (12) by brazing or the like. The fixing part is shown in (15). A cut surface (16) is formed obliquely in the longitudinal direction at one end of the rotation member (14) projecting from the cylindrical gear hole (11).
Since only the other end of the rotation member (14) is fixed, one end thereof has elasticity in and out of the cylindrical gear hole.
The hole (13) has such a size that the elasticity of one end of the rotating member (14) is not impaired. The whole embodiment shown in FIG. 1 is a main body (01). Next, the operation of the above-described embodiment will be described with reference to FIGS. Figure 2 shows an artificial root
(21) shows a state where the holding member (22) is connected. The holding member (22) is placed over the artificial tooth root (21), and the side surface of the artificial tooth root (21) is pressed by the ring-shaped elastic member (25) to hold the artificial tooth root (21). A cylindrical gear (23) is formed above the holding member (22). The artificial tooth root (21) held by the holding member (22) is lightly inserted into the jaw bone previously drilled. Next, the hole for the cylindrical gear of the body (01)
(11) is inserted into the cylindrical gear (23) of the holding member (22). One end of the rotating member (14) (near the cut surface (16)) is
3) Located on the middle of the road. Next, as shown in FIG. 3, the handle (12) of the main body (01) is rotated in the direction B by 回 転 rotation or less. The rotation member (14) contacts the tooth side surface of the cylindrical gear (23) and rotates the holding member (23) in the B direction so as to push the tooth side surface. After rotating the handle (12) of the main body (01) by １ ／ rotation or less in the B direction, it is rotated by the same amount in the opposite direction A direction.
Since the rotation member (14) slides on the surface of the cylindrical gear (23), the holding member (22) does not rotate. At this time, the cut surface (16)
Promote slip. By repeating the above operation,
The holding member (22) and the artificial tooth root (21) rotate only in the B direction. Next, the main unit (01) is turned over and the same operation as described above is performed. At this time, the holding member (22) and the artificial tooth root (21) rotate only in the direction A. In this manner, the rotation direction of the artificial tooth root (21) can be changed only by turning over the main body (01), and the connection and detachment to the jaw bone hole can be performed freely.

[0006]

As described in detail above, the present invention is simple in structure and can change the rotation direction of the artificial tooth root only by turning over.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2

FIG. 3 is a diagram for explaining the operation of the present invention.

[Explanation of symbols]

 01 Body 11 Hole for cylindrical gear 12 Handle 13 Hole 14 Rotating member 21 Artificial tooth root 22 Holding member 23 Cylindrical gear

Claims (1)

(57) [Scope of request for utility model registration] 1. A holding member for holding an upper portion of an artificial tooth root, a cylindrical gear provided on an upper portion of the holding member, a cylinder having a long handle, and inserting the cylindrical gear portion into one end of the handle. One end protrudes into the gear hole, the cylindrical gear hole,
A ratchet wrench for dental treatment, characterized in that the other end comprises a rotating member fixed to a side surface of the handle.