JP2010508102A - Dental treatment chair and treatment chair station - Google Patents

Abstract

The invention relates to a dental treatment chair (10) having a column-type base (2), a seat (11) that is arranged to the side of the base (2) and that can be height-adjusted in relation to said base between a base position and a highest position, a drive (20) that is used for adjusting the height of the seat (11) and that is situated in the base and a transmission mechanism that couples the seat (11) to the drive (20), said mechanism comprising a vertically displaceable support arm (30, 40) on which the seat (11) is fixed to the end facing away from said drive (20). The support arm (30, 40) is tilted such that the points at which the support arm (30, 40) engages with the drive (20) and the seat (11) have a different vertical position.

Description

  The present invention relates to a dental treatment chair based on the pre-characteristic clause of claim 1, wherein the seat bench is perpendicular between the bottom position and the highest position relative to the base of the treatment chair in the dental treatment chair. Can be adjusted to the direction.

  In general, the dental treatment chair is adjustable within many degrees of freedom in order to position the patient in an ergonomically correct manner and in a manner suitable for the treatment to be performed. Under such circumstances, a conventional treatment chair includes a seat bench that can be adjusted in a vertical direction, and a backrest that can be tilted in relation to the bench is disposed at the end thereof. Here, the backrest is usually adjacent to a head cushion for supporting the patient's head. Under such circumstances, it is generally possible to set the positions of the backrest and the head cushion independently of the vertical setting of the seat bench. Furthermore, not only is the seat bench adjustable vertically, but in addition it can be rotated slightly more to allow the so-called “Trendelenburg movement” A chair is known.

  The present invention is particularly concerned with the vertical adjustment capability of the seat bench of a treatment chair. Various drive and transmission mechanisms are known for the purpose of allowing adjustment between the bottom position and the highest position. In these cases, the drive and lifting device can be arranged, for example, under the seat bench. However, a dental treatment station is also known in which the central feeding device is constituted by parallelepipedal columns, in which the patient's chair is placed next to the column and coupled with a drive located in the column. Is done.

  Under such circumstances, the vertical adjustment capability of the treatment chair needs to be in a range that allows an optimal and comfortable working situation for the dentist performing the treatment. As the dentist changes the height, this means that the vertical adjustment capability must be within certain limits depending on his or her height. In addition, the exercise margin must depend on whether the dentist prefers to perform the treatment standing or performing sitting. Finally, the placement of the treatment chair relative to the columnar base also depends on whether the dentist is left-handed or right-handed.

  Careful measurements have heretofore been necessary in order to be able to adapt the design of this kind of treatment chair to the needs of the dentist from time to time. Considerable in terms of cost, after the final installation, it does not make sense in terms of the fact that the patient's chair still needs to be vertically adjustable within a certain range to match the dentist High expenditure.

  The basic object of the invention is therefore to show a new and particularly cost-effective way to adapt the vertical adjustment capacity and arrangement of the dental treatment chair in a simple way to the requirements of the dentist.

  This object is achieved by a dental treatment chair characterized in claim 1. Advantageous further developments of the invention form the subject matter of the dependent claims.

  The solution according to the invention is based on the idea of designing a coupling between the seat bench of the treatment chair and a drive having a transport arm that can be arranged vertically. The seat bench is fixed toward the end of the transport arm that faces in a direction different from that of the drive unit. The transport arm is configured to be tilted in such a way that the connection points between the drive and the seat bench are different in the vertical direction. This solution is possible through the use of differently shaped, preferably Z-shaped transport arms, in order to adapt the vertical adjustment capability and the seat bench arrangement to the dentist's requirements in a simple manner. In particular, it is essentially sufficient to employ two different transport arms that can be used selectively. In the case of one of the two transport arms, the connection point to the drive is above the connection point to the seat bench, and in the case of the other transport arm, below the connection point to the seat bench The connection point to the drive lies. Depending on whether the dentist prefers to perform treatment in a standing position or in a sitting position, the patient's chair is coupled to the drive using a corresponding transport arm. Can do. If the transport arms are connected in different directions, on the other hand, the seat bench can be changed from a conventional right-hand operation to a left-hand operation in a simple manner. In this case, also two transport arms can be selectively employed to adapt the vertical adjustment capability margin to the desired method of dentist work.

  Therefore, what can be used by the present invention is a columnar base, a seat bench that is arranged beside the base and can be adjusted vertically between the bottom position and the highest position, and the seat bench is adjusted vertically. A dental treatment chair having a transmission mechanism including a drive arm, a seat bench and a drive unit arranged on a base, and a transport arm movable vertically. The seat bench is fixed towards the terminal end facing in a direction different from the drive part of the transport arm, and according to the invention, the connection points to the drive part of the transport arm and the seat bench are different in the vertical direction. The transport arm is configured to be inclined at

  In the case of two different transport arms, which are selectively made available, if possible, the transport arms or arms are preferably tubular structures and these arms have different horizontal lengths. As a result of this, the seat bench arrangement can also be adapted to the desired method of dentist work in certain respects.

  The drive is preferably provided with a spindle drive having a vertically oriented driving spindle which is arranged in the base and is coupled to the support in a suitable manner. It is also conceivable to employ a pneumatic or hydraulic drive.

  The present invention will now be described in more detail with reference to the accompanying drawings.

FIG. 1 is a dental treatment station having a treatment chair designed in accordance with the present invention. FIG. 2 shows various aspects regarding the coupling for vertical adjustment capability of the drive and treatment chair. FIG. 3 shows various aspects regarding the coupling for vertical adjustment capability of the drive and treatment chair. 4 (a) and 4 (b) show various aspects of the first transport arm. 5 (a) and 5 (b) show various aspects of the second transport arm. FIG. 6 shows the arrangement of the first transport arm on the drive for vertical adjustment capability. FIG. 7 shows the arrangement of the second transport arm on the drive. FIG. 8 shows another form of mounting and guiding embodiment of the transport arm. FIG. 9 shows another form of carrying arm attachment and guidance embodiment. FIG. 10 shows another form of carrying arm attachment and guidance embodiment.

  The treatment chair of the present invention, generally provided with reference numeral 10 in FIG. 1, is part of the components of the dental workstation 1. As its central element 2, this workstation 1 has a columnar supply device provided for attachment, drive and supply to the corresponding components of the treatment station 1. These include, for example, a first service table 4 connected to the columnar base 2 via a swivel arm 3. The service table 4 is mainly used by a dentist who performs treatment, and serves to support and drive dental treatment instruments such as a drill and a calculus remover. It is possible to control the corresponding components of the treatment station 1 via a number of control elements constructed in the service table 4. For example, these input elements can be used to adjust the treatment chair 10.

  The auxiliary element 6 is fixed to the base 2 via the second swivel arm 5. Preferably, this element 6 used by the assistant serves to support and drive individual devices such as suction devices or so-called “dispersion handpieces”. Furthermore, the patient part 7 including the sputum and water supply can also be controlled via the auxiliary element 6. In this regard, the dental treatment station 1 represented in FIG. 1 corresponds to a conventional treatment station for dentistry.

  In addition, the central column 2 also serves to attach a treatment chair 10 having a seat bench 11 first. A backrest 12 that can be tilted in relation to the bench is disposed at the rear end of the seat bench 11, and a head support 13 is disposed adjacent to the backrest. Both components of the backrest 12 and the head support 13 are adjusted independently of each other in the desired manner in order to adapt them to the patient, in particular the height of the patient and the manner of working of the dentist. be able to. However, the possibility of adjustment for the backrest 12 and the head support 13 is not the subject of the present invention and is therefore not described in particular detail below.

  Instead, as already mentioned, the present invention relates to the vertical adjustment capability of the treatment chair 10. In this connection, the first special feature is that the drive for that purpose serves as a base, rather than being placed under the seat bench 11, as was mainly the case so far. Lies in the fact that it is located in unit 2. The vacant space used to install the foot plate 14 is thus left under the seat bench 11.

  A drive which is arranged in the base 2 and whose further details are not represented in FIG. 1 serves as a result to allow a vertical arrangement of the seat bench 11. Under such circumstances, the seat bench 11 and thus the patient chair 10 can be adjusted within a range that allows an optimal method for the work of the dentist. At the same time, it should be remembered that treatment in both standing and sitting positions is possibly possible in connection with some different preferences of dentists. Therefore, the patient chair 10 that can be adjusted vertically should be adapted to the needs and desires of the dentist. Similarly, it should be possible to place the treatment chair 10 on the opposite side of the base 2 to also allow use by left-handed persons. A solution that allows adaptation to the requirements of the dentist in a simple manner, is cost-effective and can be put into practical use will be explained with the aid of the following figures.

  The solution according to the invention is based on employing a special transmission mechanism for transmitting power for the vertical adjustment capability of the treatment chair. The mechanism of the treatment chair allows a simple adaptation of the range of adjustment to the individual desire of the dentist because of its design. In this connection, FIGS. 2 and 3 show details of the coupling of the treatment chair to the drive located in the columnar base according to the invention.

  In the illustrated embodiment, the drive unit 20 is designed as a spindle drive unit 20 and has a motor 21 coupled to a vertically oriented drive spindle 22 in response thereto. Also coupled to the drive spindle 22 is a guide part 24 mounted so as to be vertically displaceable on a guide pillar 23 disposed in the base. In response to this, the guide part 24 is in contact with the guide rail 25 formed on the side wall of the guide pillar 23. In this case, the sliding surface is constituted by a steel strip. The guide part 24 is arranged vertically along the pillar 23 in a desired manner by appropriate operation of the motor 21.

  As an alternative to the spindle drive shown, for example, a pneumatic or hydraulic drive can be employed.

  The treatment chair 10 is coupled to the drive unit via the transport arm 30. The transport arm 30 is coupled to the guide part 24 at one end and to the patient chair 10 or the seat bench 11 on the other. The design of this transport arm can be inferred in more detail from FIGS. 4 (a) and 4 (b).

  As shown in these two figures, the transport arm 30 is configured to be bent in a Z-shaped or tilted manner. In response, firstly, the transport arm 30 has a first end 31 in the form of a fixing flange intended to be fixed to the guide part 24. The second end portion 32 serves to be fixed to a seat bench or a transport portion installed under the latter. In this case, the two end portions 31, 32 have a first end portion, which is intended to be fixed to the patient chair 10, particularly when the transport arm 30 is placed horizontally as a whole. The connection is made via a connection part 33 designed to be positioned below 31. In other words, as can be inferred from the expressions in FIGS. 2 and 3, the connection point of the transport arm 30 to the drive unit is located above the connection point of the treatment chair to the seat bench 11.

  However, it is now also possible to use the second transport arm to fix the treatment chair 10 to the drive 20 as an alternative to the transport arm 30 shown in FIGS. 4 (a) and 4 (b). It can be. The second transport arm is represented in FIGS. 5 (a) and 5 (b) and is given the reference numeral 40. This alternative transport arm 40 likewise has a first end 41 for fixing to the guide part 24 and a second end 42 for fixing to the treatment chair 10, the two ends 41, 42 also being Further, they are connected to each other by an angled method via the connecting portion 43. Similar to the first transport arm 30, the second transport arm 40 has a columnar structure, for example, a cast part.

  Here, the difference between the two transport arms 30 and 40 is that the connection 43 between the first and second ends 41 and 42 of the second transport arm 40 is inclined opposite to the connection 33 of the first transport arm 30. Is in the fact that As can be particularly inferred from the representation of FIG. 5 (b), this indicates that the connection point to the patient chair 10 is located above the connection point to the drive. The result from this is that FIGS. 6 and 7 show the arrangement of the two transport arms 30, 40 on the guide part 24 located in the drive part 20, in each case the guide pillar 23 in the lowest possible position. It is possible to guess from

  The second ends 32, 42 of the transport arms 30, 40, which serve to attach the treatment chair 10, are each placed below in the case of the first transport arm 30 than in the case of the second transport arm 40. Can be clearly understood. This means that the margins for adjusting the treatment chair 10 within the limits of the lifting movement are different. The patient chair 10 can be adjusted between a particularly low position and a predetermined maximum limit position using the first transport arm 30, while the patient chair is shown in FIG. It can be adjusted from a somewhat higher initial position represented to the highest height. Therefore, the first transport arm 30 is preferably employed when the dentist prefers to perform treatment at the sitting position. Similarly, the transport arm 40 serves to provide the possibility of adjustment to help a dentist who prefers to stand.

  According to the invention, through the design of the drive or transmission mechanism for the vertical adjustment capability of the treatment chair, the range of adjustment can be adapted in a simple way to the dentist's requirements by selecting a suitable transport arm. Is possible. Based on such circumstances, the horizontal length of each of the connecting portions 33 and 34 may be selected in a suitable manner for the purpose of setting the horizontal arrangement of the treatment chair 10. .

  Another advantage of this solution according to the invention lies in the fact that the patient chair can be configured in a simple way so that it is also suitable for use when operated by a left-handed person. . In essence, all that is necessary for this purpose is an inverted arrangement of the guide part 24 on the transport arm or guide pillar 23. In this case, it is possible to provide different adjustment heights or adjustment widths of the patient chair 10 using the two transport arms represented in FIGS. 4 (a) to 5 (b). This means that the use of the first transport arm 30 is necessary to provide a range of adjustment to a higher position, since in this case a rotating fastener of the transport arm is required. On the other hand, the second transport arm 40 allows a lower height adjustment and is therefore particularly suitable for use in a sitting position.

  Overall, therefore, the different possibilities of adjustment for the treatment chair and the placement of the supply station on the desired side of the central supply device are provided by the availability of two different transport arms. The solution according to the invention is distinguished from its simplicity by the fact that it can be realized in a particularly cost-effective manner.

  In conclusion, FIGS. 8 to 10 show an alternative form of embodiment for supporting and guiding the transport arm. In this embodiment, the same elements as those of the first embodiment in the preceding drawings are provided with the same reference numerals, and the spindle drive unit and the drive spindle 22 attached to the motor 21 are employed again. However, now the guidance of the transport arm 30 along the pillar 23 takes place via a so-called “recirculating ball guide”. In response to this, on the side of the pillar 23 facing the transport arm 30, there is a drive spindle 22 and a carriage 51 coupled to the transport arm 30, and the guide rail to which the carriage 51 is movably attached. 50 is provided. In the vertical direction, the guidance of the carriage 51 without friction is achieved through the fact that a ball is mounted inside the carriage 51 that can roll along a sliding surface configured on the side of the guide rail 50. Regarding the other characteristics of the second embodiment, reference can be made to the view regarding the first embodiment. In this variant too, the possibility of adjustment of the treatment chair can be adapted in a simple manner, each to the user's corresponding desire.

  DESCRIPTION OF SYMBOLS 1 ... Dental treatment station, 2 ... Base, 3 ... Swivel arm, 4 ... Service table, 5 ... 2nd swivel arm, 6 ... Auxiliary element, 7 ... Patient part, 10 ... Treatment chair, 11 ... Seat bench, 12 DESCRIPTION OF SYMBOLS ... Backrest, 13 ... Head support, 14 ... Foot plate, 20 ... Drive part, 21 ... Motor, 22 ... Drive spindle, 23 ... Guide pillar, 24 ... Guide part, 25 ... Guide rail, 30 ... 1st conveyance arm, 31 ... 1st end part, 32 ... 2nd end part, 33 ... Connection part, 40 ... 2nd conveyance arm, 41 ... 1st end part, 42 ... 2nd end part, 43 ... Connection part, 50 ... Guide rail, 51. Carriage

Claims (10)

A columnar base (2);
A seat bench (11) disposed on the base (2) side and adjustable relative to the base between a bottom position and a highest position;
A drive unit (20) disposed on the base (2) for adjusting the seat bench (11) vertically;
The seat bench (11) is coupled to the drive unit (20), and has a transport arm (30, 40) that is vertically displaceable, with respect to the transport arm facing away from the drive unit (20). A transmission mechanism to which the seat bench (11) is fixed;
In a dental treatment chair (10) having
The transport arm (30, 40) is tilted so that the connection point between the transport arm (30, 40) and the drive unit (20) and the connection point with the seat bench are different in the vertical direction. A dental treatment chair characterized by comprising. A second transport arm (40) configured to selectively replace the first transport arm (30) and tilt similarly,
In one of the two transport arms (30, 40), the connection point with the drive unit (20) is located above the connection point with the seat bench (11),
In the case of the other transport arm (30, 40), the second transport arm (40) is characterized in that the connection point with the drive unit (20) is located below the connection point with the seat bench (11). A dental treatment chair according to claim 1 attached. Dental treatment chair according to claim 2, characterized in that the two transport arms (30, 40) have different horizontal lengths. Dental treatment chair according to one of the preceding claims, characterized in that the transport arm (30, 40) is a tube-like structure. Dental treatment chair according to one of the preceding claims, characterized in that the conveying arm (30, 40) is a Z-shaped structure. It is possible to arrange a single or a plurality of said transport arms (30, 40) on both sides of said base (2) and thereby also said seat bench (11) on both sides of said base (2) A dental treatment chair according to one of the preceding claims, characterized in that it is possible. Dental treatment according to one of the preceding claims, characterized in that the drive (20) is constituted by a spindle drive having a drive spindle (22) arranged vertically in the base (2) Chair. The dental treatment chair according to any one of claims 1 to 6, wherein the drive unit includes a pneumatic or hydraulic drive unit. Dental treatment chair according to one of the preceding claims, characterized in that the transport arm (30, 40) is attached to a vertical guide element (23) positioned at the base with a ball circulation guidance. In a treatment chair station having a central console for attaching, supplying and / or driving dental treatment and / or examination instruments and having said treatment chair (10),
The treatment chair station (10) is designed according to one of the preceding claims, and at the same time the console of the treatment station (1) constitutes the base of the treatment chair (10) .

Images