JPS6282015U

JPS6282015U -

Info

Publication number: JPS6282015U
Application number: JP1985172414U
Authority: JP
Priority date: 1985-11-09
Filing date: 1985-11-09
Publication date: 1987-05-26
Also published as: JPH0349687Y2

Description

[Brief explanation of the drawing]

第１図は本考案装置の一実施例を示す正面図、
第２図は第１図の―線断面図、第３図は第１
図の―線断面図でブレーキ非作動時を、第４
図は第３図同様図でブレーキ作動時を、第５図は
本考案に於けるブレーキ機構のブレーキ非作動時
の正面図、第６図は第５図の背面図、第７図は楔
用ローラの分解斜視図、第８図は本考案が実施さ
れる歯科用全顎Ｘ線撮影装置の全体側面図である
。（符号の説明）、１…Ｘ線管、２…Ｘ線フイル
ム、３…移動台、４…ワイヤ、５…支柱、６，７
…滑車、８…バランスウエイト、９…係合部材、
１１…楔（ローラ）、１２…ブレーキ機枠、１３
…ローラ軸、２４…圧縮スプリング。 FIG. 1 is a front view showing an embodiment of the device of the present invention;
Figure 2 is a cross-sectional view of Figure 1, and Figure 3 is a cross-sectional view of Figure 1.
In the cross-sectional view taken along the line - in the figure, the 4th section shows when the brake is not activated.
The figure is the same as Figure 3, but shows when the brake is in operation, Figure 5 is a front view of the brake mechanism of the present invention when the brake is not in operation, Figure 6 is a rear view of Figure 5, and Figure 7 is for the wedge. FIG. 8 is an exploded perspective view of the roller and an overall side view of a dental full-mouth X-ray imaging apparatus in which the present invention is implemented. (Explanation of symbols), 1... X-ray tube, 2... X-ray film, 3... Moving table, 4... Wire, 5... Support column, 6, 7
... Pulley, 8... Balance weight, 9... Engagement member,
11... Wedge (roller), 12... Brake machine frame, 13
...Roller shaft, 24...Compression spring.

Claims

[Scope of utility model registration request]

A wire 4 connected to one end of a movable stage 3 supporting an X-ray tube 1 and an X-ray film 2 is attached to pulleys 6 and 7 supported by a support 5, and a balance weight 8 is connected to the other end. The movable table 3 is movable up and down on the support column 5, and the distal end of an engaging member 9 whose base end is rotatably supported with respect to the movable table 3 is engaged with the wire 4 so as to be hooked thereon. Furthermore, the engagement member 9 is provided with a compression spring 2 whose elasticity acts in a direction to strengthen the hooking force with the wire 4.
4, so that when cutting the wire 4, the wedge 11, which is swung by the rotation of the engaging member 9 due to the elastic force, is moved against the support 5 by the movable table 3. In a device arranged to prevent falling, the wedge 11 consists of a straight roller loosely fitted around a roller shaft 13 horizontally suspended in the brake machine frame 12, thereby preventing the wedge from falling. roller 11
When wedged and tightly fitted, the wedge is held under pressure by the wedged surfaces over its outer diameter range, creating a wedge action, but in this state, its axis moves slightly forward and backward from the wedged position. A moving table fall prevention device for an X-ray imaging device.