JPH04810Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a support device for a hand piece of a steam cleaning device mainly used for dental techniques such as making porcelain teeth.

(B) Prior art In the conventional technology described in Japanese Utility Model Publication No. 1983-6998, which precedes the present invention, a hand piece for liquid injection is fixed to the main body case of a washing machine with a stopper. Since the hooking position of the handpiece cannot be changed in accordance with the user's usage conditions, there is an inconvenience that the handpiece is inconvenient to handle. In order to solve this problem, there is a technique in which the hooking member of the handpiece is rotatable in a horizontal plane and engaged with the rotating shaft, but in this type of prior art, the hooking member is not connected to the rotating shaft There are drawbacks such as the length of the rotary arm of the locking member changing from the adjusted position due to the locking member being undesirably pulled out or pushed in.

(c) Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks and allows the handpiece holder to be moved accurately within a controlled rotation range.

(d) Means for solving the problem The present invention consists of a connecting member to which a handpiece holder of a steam cleaning device is attached, and a connecting member that is fitted in the horizontal direction, and a main body case of the steam cleaning device. A rotating shaft that is erected, a spacer that is inserted through a shaft hole at the upper end of the rotating shaft and abuts the connecting member, and a cap nut that is pressed against the spacer and screwed onto the upper end of the rotating shaft. The cross section of the connecting member is formed into a circular shape, and the end surface of the spacer that contacts the connecting member is formed into an arc shape corresponding to the outer peripheral surface of the connecting member.

(E) Effect According to the present invention, when a cap nut is screwed onto the upper end of the rotating shaft, the spacer is pushed in by the cap nut and presses and fixes the connecting member with its end surface. Since the pressing surface of the spacer is formed in an arc shape corresponding to the outer circumferential surface of the connecting member, it comes into frictional contact with the connecting member over a wide range of area corresponding to the arc shape, so that the connecting member The spacer etc. ensure frictional locking. Further, since the pressing force of the spacer acts on the connecting member over a wide area and does not act locally, the outer circumferential surface of the connecting member is not damaged by local concentrated force.

(f) Examples Next, one embodiment of the present invention will be described.

In Fig. 1, 1 is the main body case of the steam cleaning device, and inside there is a water storage tank, an electromagnetic pump that sucks water from the water storage tank, a boiler to which water is supplied by the electromagnetic pump via a check valve, and a case of the boiler. A steam pipe line for guiding discharged superheated steam, a manually operated solenoid valve, etc. (none of which are shown) interposed in the steam pipe line are provided. The front part of the main body case 1 includes a power switch 2, a changeover switch 3 for switching the solenoid valve of the steam line between continuous opening and opening/closing by a foot switch (not shown), and a standby display for superheated steam, an overheat display, etc. Various display lamps 4 are provided. Reference numeral 5 denotes a handpiece operated by the user, which has a nozzle 6 at its tip from which superheated steam is ejected. hand piece 5
is attached to the main body case 1 via a steam hose 7 and communicates with the steam pipe line. 8 is a wrapped spring that supports the steam hose 7.

Reference numeral 9 denotes a support device for the hand piece 5, which is constructed as follows.

In FIGS. 2 and 3, reference numeral 10 denotes a hook for the handpiece 5, and 11 denotes a connecting member connecting the hook 10. The hook 10 is attached with a screw 12. 1
3 is a rotating shaft into which the connecting member 11 is inserted laterally;
Fixing bracket 1 on main body case 1 at its lower end 13a
4 and is erected on the main body case 1 via this fixing metal fitting 14. Fixing bracket 14 is screw 1
5 is attached to the main body case 1. Rotating axis 1
3 rotates and slides with respect to the fixture 14 at its lower end 13a, and is prevented from coming off by an insertion screw 17 that engages with the outer circumferential groove 16. A spacer 18 is inserted through a shaft hole 19 at the upper end of the rotary shaft 13 and is brought into pressure contact with the connecting member 11 at its lower end surface 18a. 2
Reference numeral 0 designates a cap nut screwed onto the upper end 13b of the rotating shaft 13, and by tightening the cap nut 20, the spacer 18 is pushed in and brought into pressure contact with the connecting member 11.

The connecting member 11 has a circular cross section. Further, the spacer 18 that comes into pressure contact with the connecting member 11 has a lower end surface 18a formed in an arc shape corresponding to the outer circumferential surface of the connecting member 11.

In the support device 9, by rotating the connecting member 11, the hook 10 at the tip thereof moves, so that the hand piece 5 can be hooked to the hook 10 at any position within its rotation range. will be stopped. Further, the spacer 18 pushed in by the cap nut 20 comes into frictional contact with the connecting member 11 over a wide arc-shaped surface, so that the connecting member 11 is reliably frictionally engaged with the spacer 18. Also, when adjusting the length X of the rotating arm of the connecting member 11 with respect to the rotating shaft 13, the spacer 18 and the cap nut 2
0 is retightened at another location on the outer peripheral surface of the connecting member 11, the tightening force does not act locally on the outer peripheral surface, and therefore damage to the outer peripheral surface of the connecting member 11 is prevented.

(G) Effects of the invention Since the invention is constructed as described above, by rotating the connecting member, the hook at the tip can be moved, and the handpiece can be moved within the rotation range of the hook. The support device can be hung at any position, thus providing a support device that is easy to use. Furthermore, since the spacer abuts the connecting member with its wide arc-shaped surface, the connecting member can be reliably locked at a predetermined length of the rotating arm by the wide friction surface, and each time the length of the rotating shaft is adjusted, Damage to the outer peripheral surface of the connecting member due to local contact of the spacer can be prevented.

[Brief explanation of drawings]

1 to 3 show an embodiment of the present invention,
FIG. 1 is a perspective view, FIG. 2 is a longitudinal sectional view, and FIG. 3 is a sectional view taken along line AA in FIG. 1...Body case, 5...Hand piece, 10
... Hanging tool, 11 ... Connection member, 13 ... Rotating shaft, 18 ... Spacer, 18a ... End surface, 20 ...
...Fukuro Natsuto.

Claims (1)

[Claims for Utility Model Registration] A connecting member to which a hook for a hand piece of a steam cleaning device is attached, and a rotating shaft into which the connecting member is fitted in the horizontal direction and which is installed upright in the main body case of the steam cleaning device. a spacer inserted through a shaft hole at an upper end of the rotating shaft and abutting the connecting member; and a cap nut that presses the spacer and is screwed onto the upper end of the rotating shaft, the connecting member A hand piece for a steam cleaning device, characterized in that the cross section of the spacer is circular, and the end surface of the spacer that contacts the connecting member is formed in an arc shape corresponding to the outer peripheral surface of the connecting member. support device.