JPS5944256A - Dental apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a horizontal guide provided with side slots, the horizontal guide having a longitudinally movably supported carriage, with a horizontal guide extending from the slot. The present invention relates to a dental device in which a supporting portion is arranged, and another device is supported on the supporting portion.

In one known device of this kind (DE 2946592), horizontal guides for one instrument support on each side are arranged in the height-adjustable seat support of a dental patient chair. . The horizontal guide extends parallel to the longitudinal axis of the chair.

Conditioned by the relatively high bearing capacity of the support part, the slot width is necessarily relatively wide, so that the slot forms relatively large outwardly open areas, which are aesthetically undesirable. Allows entry of dirt, dust, etc. Furthermore, the presence of relatively large open areas of this type requires expensive measures in order to comply with mechanical and electrical safety regulations.

The object of the invention is to improve the conventional dental device, namely to configure it in such a way that the disadvantages listed in item 1 can be avoided by simple constructional measures.

This purpose is achieved, according to the invention, in that a belt is arranged on the carriage/strip or on the support, which is guided at the slot end, and that this belt guides the movement of the carriage from one end position to the other end position. This is achieved by means of a dental device, which is characterized in that the slot sections that occur during this process are covered on both sides of the support. The belt may be unwound from a winding drum disposed at the slot end when the gear ridge moves, and may be wound as many times as needed, or may be wound on a turning roll disposed at the slot end as an "endless belt □°". In the latter case, the advantage is that the belt can also be used to drive the carriage, by guiding it around the dimensions of a drive roller driven by a drive motor.

Advantageous embodiments of the invention are listed in the subclaims.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a dental treatment table in a perspective view, comprising a doctor's device 2 arranged on the right side as viewed from the patient and a patient-related device 3 arranged on the left side of the patient chair. The patient chair 1 mainly consists of a chair upper part and a chair lower part. The lower part of the chair has a base 4 containing a horizontal guide 5 of the doctor's device 2 (described in more detail later) and an electrical and/or pneumatic supply module organized in a junction box 6, as well as a bellows. - a height adjustment device for adjusting the height of the upper part 8 of the chair, which is covered by a seat and a backrest. The device 3 is likewise held movable by horizontal guides 9 (FIG. 2) parallel to the longitudinal axis of the chair.

The horizontal guide 5 of the doctor's suit #2 is attached to the fixed base 4 over the entire length of the chair, i.e. from approximately the rear edge of the seat to at least the leg end of the seat, or at the junction box shown in FIG. A horizontal guide 9fd for patient-related equipment 3 extends at the right end of 6, opposite to which a horizontal guide 9fd for patient-related equipment 3 height-adjustable chair upper support 1
0 and simply extends its length.

FIG. 3 shows the structure of the lower part of the chair including the upper chair support 10 in an exploded view. FIG. 3 is a view from the same side as FIG. 2.

The base 4 consists mainly of a base plate 11 of approximately rectangular profile which receives all the supports, in particular the height adjustment device 60 and the support 10 for the chair upper part 8, and two &iin pieces surrounding this base plate and arranged on the short sides. It is arranged in 12 pieces length 2 / from the frame part] 3 and from the profile element 14; from the frame which is hollowed out in the form of a U.

The end piece 12 has a U-shape and is bent at a right angle so that the end piece 12 is U-shaped.
] has an end 12a which grips the short side of the frame 13, into which the elastic connecting element 15 can be inserted, to which the frame 13 and the profile element J4 can be attached.

The right-hand end piece 12 shown in the drawing includes an extension 16 on which the lower end of the bellows 7 is hooked. End piece 12
is screwed to the base plate 11, so that a mounting block 17 is arranged on the base plate 11 and a lug 18' is arranged on the end piece 12.

The frame part 13 formed in a borohedral has a section 13a which corresponds to the length of the upper chair support 10 but also the length of the bellows 7 surrounding the height adjustment device, and a section 13a which corresponds to the length of the bellows 7 surrounding the height adjustment device, and a section 13a whose remaining length corresponds to approximately the length of the junction box 6. It is divided into a section 13b which corresponds to the length. At the dividing point, a holding part 20 is arranged, which is attached to a bar 19 that is connected to the board 11, and is adapted to the profile of the frame part 13, and on top of which the frame parts 13a and 13b are attached. One end is screwed for fixation before being joined to the piece 12 by the elastic connection type blank 5 at their other end. The frame 13a, like the right end piece 12, includes an extension 16, on which the bellows 7 is hung. Divided by angle profile 14
The parts are also connected to each other by elastic connecting elements 15. ”Second side angle profile 14a
includes an extension 16 similar to the frame 13a, to which the bellows 7 can be attached.

The main advantages obtained by dividing the frame and the angle profile as described above are that the same frame can be used both as a frame for the seat support and as a frame for the base;
This means that it can be used both in chair constructions with a short base, such as a junction box, and also in chair constructions with a long base, for example with a junction box.

Both angle profiles 14 have a total length of 1
It forms two slots 21, from which protrudes a connecting joint or support 22, into which a lower bent post 23 (FIG. 1) for the device 2 can be attached. The support 22 is fixedly connected in the base 4 to a carriage 24 which is guided in the horizontal guide 5 over the entire length of the slot 21.

The slot 21 is covered by a strip 25 which is placed over the carriage 24 at each position of the carriage 24 and is guided as a strip 25 approximately at right angles via a deflection roller 26.

Open in the carriage 24 are various supply channels 27 grouped in flat strips, which supply the media required in the device 2 (air and (still) water and/or ) is conducted from a central source in the junction box 6 to the support 22.

Similar to the construction of the base 4, the two-part support 10 also has a base plate 31 of approximately rectangular profile of the same width as the base plate 11, and an elastic coupling element 35 on the one hand from both end pieces 32 and on the other hand as well.
It is formed by a frame 33 which is attached to the end piece by a frame 33 and a frame consisting of an ampoule profile 34. Extensions 36 are present on the end piece and the angle profile, on which the bellows 7 can be hung.

End piece 32 has a mounting ear 38 similar to end piece 12, ie, at the same location and at the same height.

An attached support 37 is provided within the base plate 31.

The frame 33 also has the same dimensions as the frame section taa,
This particularly simplifies the holding of each part and allows for the replacement of various parts. Thus, for example, the right-hand end piece 12 (of the base 4) provided with an extension can be used as a frame of the upper support.

Here too, a connection or support 42 projects through the slot 41 formed by the two angular profiles 34, to which a support 43 (FIG. 3) of the device 3 is attached, either directly or via a support arm. Slot 41
As in the case of the base 4, it is covered with a band 45.

FIG. 4 shows details of the horizontal guide 5.

The horizontal guide 5 includes a through shaft 47 held in a support 46 on which a carriage 24 is slidably supported in the longitudinal direction.The carriage 24 rests on four U-shaped profiles by means of running rollers 48. . Four deflection rollers 26 guide the belt 25 at the slot ends and deflect the belt approximately at right angles. two separate turning rollers 5
0, the belt 25 forms a loop. In this range,
A friction wheel 51 connected to a drive unit 53 via a magnetic clutch 52 pushes the belt 25 .

Referenced 54 is a pressure roller which is pressed against the flattening belt 25 by a spring 55, so that the flattening belt is pressed against the slot 21 when the drive 53 is switched on. At the same time, the flat belt 25 used in the carriage 24 and therefore the device 2
, and is pressed against the friction shaft 51 so that it can be used as a drive or transmission element for . The horizontal guide 9 for the device 3 is constructed in principle identically, but it does not include a drive.

The flat belt 56 may be detachably attached to the carriage with a screw, or may be hung on a hook of the carriage with a curved piece. If the device attached to the column 23 is manual rather than electric, and if the flat belt cannot be guided in a rectangular manner for reasons of location, the endless guidance of the belt is omitted and the slot is e.g. Instead of the front deflecting roller 26 in FIG. 3) it can be covered by a winding roller (for a flat belt consisting of two #s) located at the bent end of the end piece.

5 and 6 show the structure of the base in FIG. 3 in detail. In particular, FIG. 6 shows the shape of the two profiles forming a slot through which the carriage and the support connected thereto pass. These profile materials are angled profiles which are arranged with their flat sides facing outwards and their leg ends towards the flat belt. The part 14a of the profile material 14 that is slightly bent inward toward the belt slightly covers the flat belt in the assembled state and is in contact with it, which is useful for preventing dust from entering the slotted belt. It is valid. The entire frame, i.e. the flat frame 13 and the profile material 14, is connected to the connecting element 1
5 has an identical profile at the connection point, which simplifies the construction, keeps bearing maintenance costs low and allows for the interchangeability of small parts. In this way, the end piece provided with the bellows retainer can be used both for the base and for the seat support. Similarly, the holohedral frame profile and the slot-forming frame profile may be arranged alternately on the left or right side of the chair, or on both sides of the chair. It depends on which side of the chair the device should be movably held.

[Brief explanation of drawings]

Figure 1 is a schematic perspective view of a dental treatment table, Figure 2 is a view of the treatment table in Figure 1 seen from the opposite side, Figure 3 is an exploded view showing the structure of the lower part of the chair, and Figure 4 is a horizontal guide. Detailed views, FIGS. 5 and 6, are detailed views of a portion of FIG. 3. 1...Patient chair, 2...Doctor's equipment, ゛3...
・Patient-related equipment, 4. Base, 5. Horizontal guide,
6...Connection box, 7...Beo-18...Chair upper part, 9...Horizontal guide, 10...Chair's two-part support, 11...Substrate, 12...End piece, 13... Frame part, 14... Profile element, 15... Connection element, 16... Extension part, 17... Mounting block, Work 8... Ledge piece, 19... Bar, 20... Holding part, 2
1 slot, 22... holding part, 23... strut,
24...Carriage, 25...Obi, 26...
... Turning roller, 27... Supply conduit, 31...
・Substrate, 32・End piece, 33...Frame! , 34...
・Angle profile, 35・・Connection element, 36・
Extension part, 37... Support, 38... Mounting ear piece,
41... Slot, 42... Holding part, 43... Support, 45... Flat belt, 46... Support, 47...
- Axis, 48... Travel roller, 49... U-shaped profile, 50... Bow roller, 51... Friction wheel, 52... Magnetic clutch, 53, Drive J unit, 54... Press roller, 55・Spring, 56・・
Flat belt.

Claims (1)

Claims: 1) a carriage (24) comprising horizontal guides (5, 9) provided with side slots (21, 41), on which the horizontal guides are supported for longitudinal movement; , and the carriage has a support portion (22) protruding from the slot.
゜42) is arranged, and other devices (2
, 3) in which the carriage (24) is still arranged with a bell) (25, 45) guided at the slot end in the support (22, 42);
Dental device, characterized in that this belt covers on both sides of the support (22,'42) the slot section that occurs during the movement of the carriage from one end position to the other end position. 2) The dental device according to claim 1, characterized in that the bell (25, 45) is wound up by a winding roller arranged at the end of the slot. 3. Dental device according to claim 1, characterized in that the bell (25, 45) is guided as an endless belt via a deflection roller (26) arranged at the end of the slot. 4) A patent characterized in that the ends of the belts (25, 45) are removably attached to the carriage (24) and the supports (22, 42), in particular by means of hook/clasp attachments. A dental device according to any one of claims 1 to 3. 5) The belt (25, 45) is used to drive the carriage (24), for which purpose the belt is connected to the drive motor (5).
5. The dental device according to any one of claims 1 to 4, characterized in that the dental device is guided instead of a friction wheel (51) driven by 3). 6) An electric, drive unit (53) with a sliding clutch 1, in particular an electromagnetic clutch (52), drives and friction rollers (51)
6. The dental device according to claim 5, wherein the dental device is provided between . 7) Claim 1 characterized in that a flat bell) (25, 45) or a rubber elastic belt is provided.
The dental device according to any one of Items 6 to 6. 8) The guide slot (21, 41) is formed by an angled profile (14° 34) with the flat side facing outward and the still narrow leg end towards the bell (25, 45). Claims 1 to 7 characterized by
The dental device according to any of paragraph 7. 9) The angle profile (14,3'4~) is
9. Dental device according to claim 8, characterized in that it is held in an end piece (12° 32) attached to the dental device (11, 31). 10) Dental device according to claim 9, characterized in that the angular profile (14, 34) is held in the end piece (12, 32) by an elastic coupling element (15, 35). 11) The angle profile (14, 34) together with the end piece (J2°32) including the bent ends (i2a, a2a) forms a rectangular frame. The dental device according to any one of Items 8 to 10.