JPS6068844A - Vibration angle piece for dentist and dental technique - 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 grip casing that supports a drive shaft therein;
A vibrating angle piece for dentists or dental technicians consisting of a head casing arranged at the end of the grip casing, the axis A of the head casing extending at an angle to the axis B of the grip casing, and An impact piston is arranged in the head casing so as to be able to reciprocate in the axial direction, and the return stroke is provided by an eccentric pin located at the end of the drive shaft, and the eccentric pin is laterally engaged with the impact piston. A notch for mating is formed, a step is provided at the edge of the notch, and a working spring is assigned to the impact piston that causes a working stroke after the eccentric pin passes the step. the working spring is such that it can be tightened before the eccentric pin reaches the step, and in the working stroke of the percussion piston a plunger arranged inside the head casing and movable in the axial direction The impact piston is designed to apply an impact force to the inward end of the spatula 1 casing of the vibrating tool.
A shaft retaining spring is arranged in the rad casing, the retaining spring acting on the end of the vibratory tool facing inwardly of the head casing, and the spring force of the retaining spring being applied by the adjusting member. Relating to a form configured to be variable.

Said retaining spring makes it possible to hold the vibratory tool pressed inside the head casing with an equal and desirable force after each working stroke, so that the impacts carried out are uniform. Depending on the application, vibrating tools, such as pits, hammers, etc., can be used, for example, as riveting tools for dental riveting, or as amalgam pie-breaks when solidifying dental fillings, or as brackets in the orthodontic field. It is desirable to vary the spring force of the retaining spring by means of an adjusting member, depending on whether it is used as a strap-on or post-adjustment device or as a correction device.

Prior Art The vibrating angle piece of the above type is patented in West Germany Patent No. 3.
It is known from the document No. 008297. In this known oscillating angle piece, the adjusting member is constructed as a fitting that can be screwed into the blade casing, and this force acts not only on the holding spring acting on the oscillating tool but also on the percussion piston. The working spring is also supported from inside the head casing. Therefore, when screwing in the adjusting element configured as force 2-, the adjusting element acts in such a way that the spring force of the holding spring and the spring force of the working spring are respectively changed depending on the depth of screwing-in. The desired effect obtained by adjusting the holding spring is counterbalanced by a simultaneous adjustment of the working spring. In other words, the known oscillating angle piece does not allow individual adjustment of the retaining springs.

SUMMARY OF THE INVENTION The object of the invention is to improve a vibrating angle piece for dentists or dental technicians of the type mentioned at the outset, in such a way that the spring force of the retaining spring can be adjusted individually. That's true.

A measure of the invention to achieve the above-mentioned object is that the adjustment element is constructed as a component that acts exclusively on the retaining spring.

Effects of the invention An advantage of the invention is that by configuring the adjustment part as a component that acts exclusively on the holding spring, the spring force of the holding spring can be adjusted independently and separately from the working spring, so that the spring force of the holding spring can be adjusted independently. The point is that the spring force can be specially adapted separately to different applications.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated vibrating angle piece consists of a grip casing 1 in which a drive shaft 2 is supported, and a head casing 2 arranged at the end of the grip casing 1. The axis A of the head casing 3 extends at an angle to the axis B of the grip casing 1, in this embodiment at an angle of 9000 degrees. G'1 in the head casing 3,
An impact piston 5, whose return stroke is urged by an eccentric pin 4 disposed at the end of the drive shaft 2, is arranged so as to be able to reciprocate in the axial direction. The percussion piston 5 has a cutout 8 on the side for the engagement of the eccentric pin 4, which cutout 8 has an edge 6.
A stepped portion 7 is provided at the top. The impact piston 5 is provided with a working spring 9 that applies force to the working stroke after the eccentric pin 4 passes the step 7.
is assigned. This working spring 9 is tightened before the eccentric pin 4 reaches the step 7.

During the working stroke, the percussion piston 5 hits the head casing 3.
The end 11iC of the axially movable sylanger-shaped vibrating tool 10, which is disposed inside the hexagonal casing 3, applies an impact. A retaining spring 12 is arranged in the head casing 3 and acts on the end 11 of the vibrating tool 10 projecting into the head casing 3, the spring force of which is varied by an externally operable adjustment member 13. It is possible. The adjusting element 13 is designed as a component that acts only on the retaining spring 12.

The adjusting part 13 is rotatably mounted in the helad casing 3. The adjusting member 13 is connected to a receiving sleeve 15 which accommodates the retaining spring 12 and whose bottom 14 constitutes a spring receptacle for the retaining spring 12 so as to rotate therewith; The receiving sleeve 15 is movable back and forth in the direction of the axis A relative to the head casing 3 by means of a thread [6].

As can be seen in the drawings, the rotatable adjustment member 13 is inserted into the receiving sleeve 15 towards the end of the vibrating tool IO towards the interior of the head casing 3 through a recess 17 formed in the bottom 14 of the receiving sleeve J5. and has a radial enlargement 18 which abuts with one side against the bottom 14 of the receiving sleeve 15 and which, by means of an external force 11111, retains the retaining spring. It constitutes 12 spring receiving surfaces. The radial enlargement 18 is designed as a ring-shaped projection.

The head casing 3 has at its end facing away from the tool side a force S part 19 fixedly connected to this end, said force D part 19 being configured in the form of a sawtooth and pivotable. a cutout 20 for the shank 21 of the adjustment member 13 and a recess 20a for the mushroom-shaped head portion 22 of the adjustment member J3. According to this embodiment, the force 2 part 19 is screwed into the helad casing 3 and fixed. The head casing ζ portion 19 may be constructed integrally with the head casing 3.

The mushroom-shaped head portion 22 of the adjustment member 13 has the adjustment member 1
3 is provided with a keyhole 23 for rotating the operating section. The cover part 19 surrounding the mushroom-shaped spatula 1'' part 22 as well as the mushroom-shaped head part 22 has adjustment marks 24. Furthermore, the mushroom-shaped head part 22 and the force part 19 have locking elements 25. are doing.

The retaining spring 12, which is configured as a helical compression spring, has a radial enlargement 18 of the rotatable adjusting member 13 at one end.
It is supported by the oscillating tool 1o and acts in pairs on a hammer-shaped piston 26 arranged at the other end in front of the vibratory tool 1o. The hammer-shaped piston 2G has a ring flank-shaped enlarged part 27 on the end face on the side of the vibrating tool 1o, and the enlarged part 27 is engaged with four corresponding ring-shaped parts 28 provided on the end face on the cylinder side of the impact piston 50. It is possible.

Furthermore, as can be seen from the drawing, the tool-side end of the receiving sleeve 15 is in a state in which the retaining spring 12 is relaxed in relation to the screwing depth of the adjusting member 13 by means of the thread 16 in the head casing 3 and thus of the receiving sleeve I5. and relatively deep (relatively small distance in front of the ring-flange-shaped enlargement 27 of the hammer-shaped piston 26 when screwed in: y
ll and a relatively shallow (if screwed in, relatively large) distance Vm y2'4.

The percussion piston 5 has an axially extending transparent bore 29 in the center for receiving a receiving sleeve 15 containing a retaining barb 12, the receiving sleeve 15 being configured as a guide 1 of the percussion piston 5. There is. In order to change the impact force of the impact piston 5, the head casing 3 has a separate adjustment device 30 for changing the spring force of the working spring 9 acting on the impact piston 5, which adjustment device 30 can be manually operated. The adjustment ring 31 has an adjustment ring 31 which can be adjusted at 300 degrees and can be rotated about the axis A of the head casing 3.By rotating this adjustment ring 31, the adjustment ring 31 can be adjusted opposite to the impact piston side. The pressing member 32, which is in contact with the action spring 9 from the side thereof, is reciprocated in the direction of the axis A.

The adjustment device 30 can be locked in its adjustment position. As shown in FIG. 8, the pressing member 32 is the adjustment ring 3]
3 suppressions configured as 114 components separate from +
It consists of 12-rules. An inclined surface 34 formed on a ring end surface 33 of the adjustment ring 31 on the impact piston side comes into wedge-shaped contact with the pressing dial from the side opposite to the impact piston. A ring-shaped pressing force transmission plate 35 that surrounds the adjusting portion 13 is arranged between the pressing member 32 and the working spring 9. In Fig. 3, H1'4 (indicated by xl)
In the end position of the 114-bar ring 31, the impact force of the impact piston 5 is at a minimum, and the adjustment ring 3 indicated by the lever X2
In the other end position 1, the impact force of the percussion piston is at a maximum.

On its side facing away from the oscillating tool, the percussion piston 5 has a central tubular part 36 in which it is configured as a conical compression helical spring and is guided. The central tubular part 36 faces with its free end an outer ring flange 37 provided in the area of the bottom 14 of the receiving sleeve J5. The three suppressors 4A32, together with their associated inclined surfaces 34, are uniformly distributed over the entire circumference of the flRi joint ring 31. The tilting surface 34 has a plurality of recesses 38 arranged adjacent to each other in order to be engaged by the pressure levers, and the recesses 313 have successively larger depths in one direction.

As can be seen from FIG. 3, FIG. 8, and FIG. 9, the ring end surface 33 of the adjustment ring 31 on the adjustment piston side and the head cane puffer 30 surface 39 facing this are arranged in the circumferential length of the inclined surface 340. In order to correspondingly limit the rotation angle of the adjusting ring 310, it has a stop 40 and a corresponding stop 41 that cooperate with each other. Stopper 40 and corresponding stopper 4
1, the ring end face 33 or surface 39 also protrudes,
It consists of a bottle engaged in a slot 42 formed on the surface 39 or the ring end surface 33 and having a small circumferential length (both corresponding to the circumferential length of the inclined surface 340) and the end walls of both slots 420. has been done.

In particular, as can be seen from FIG. 3, the adjustment ring 31 can be rotated by the key groove coupling portion 43, but cannot be moved in the axial direction of the spatula 1? It is combined with the casing 3. It is provided between the key groove coupling portion 4' (t, i+,', 1 section') ring 31 and the force/ζ portion 19 which is fixedly connected to the head casing 3. The ring 39 of the adjusting ring 31 facing the ring end face 33 on the percussion piston side is formed in a cover part 19 which is fixedly connected to the head housing 3 .

Furthermore, the drawing shows that the adjustment ring J3, which can be rotated together with the receiving sleeve 15, is attached to the extrusion plunger 2 of the vibrating tool 1o.
1 (having an axial extension and vibrating tool) movable in the direction of the axis relative to the receiving sleeve 15 against the spring force of the retaining spring 12 in order to extrude the It turns out that.

In order to be connected in a rotationally fixed manner relative to the receiving sleeve I5, the shank 21 of the adjusting ring 13 has a section 45 which is designed so as not to have a circular cross section;
With this section, the shaft 2J passes through a recess 17 with a corresponding cross section formed in the bottom 14 of the receiving sleeve J5. The cross section of the section 45 as well as the cross section of the recess 17 is rectangular in this embodiment.

As can be seen from FIGS. 3 and 4, a locking groove 4G is formed on the circumferential surface of the shaft portion of the vibrating tool IO. The locking groove 46 is designed as a ring-shaped radial groove extending over the entire circumference of the oscillating tool shaft. This locking groove 4
The axial dimension of G is equal to the length of the axial movement distance of the vibrating tool 10. Each of the locking grooves 46 has a lock H? −
A number of locking bodies 47, for example four, are assigned, which are configured as a series of locks and engage in the locking grooves 46 under the action of a spring 48. The spring force of the spring 48 is overcome by pulling the free end of the vibrating tool 10 or by pressing the inner end 1 of the vibrating tool shaft using the push-out plunger 44 to support the locking body 47. The vibrating tool 10 can also be pulled out or removed by the guy P bushing 49 attached thereto.

The percussion piston 5 is arranged inside a bearing sleeve 50 provided in the helide casing 3.

[Brief explanation of drawings]

FIG. 1 is a side view of one embodiment of the vibrating angle piece for dentists or dental technicians according to the present invention, and FIG. 2 is II of FIG. 1.
3 shows the ring-flange-shaped enlargement of the hammer-shaped piston with the adjusting member in the first end position and the receiving sleeve arranged between the retaining spring and the oscillating tool. FIG. 4 is a partial cross-sectional view of the head casing and grip casing of the vibrating angle piece with the impact piston in the raised position, with the impact piston located at a distance y1 in front, FIG. The spatula 1''' is shown in FIG. A diagram showing the central part of the casing, FIG. 5 is a sectional view taken along line ■-V in FIG. 3, FIG. 6 is a plan view of the head casing shown in FIG. 3, and FIG. An enlarged view of the part indicated by the symbol ■ in Figure 6, and Figure 8 is a cross-sectional view along the glands of ■ to ■ in Figure 3.
FIG. 9 is a sectional view taken along the line IX--IX in FIG. 8. 1... Grip casing, 2... Drive shaft, 3... Head casing, 4... Eccentric bottle, 5... 17Ji
'1* Piston, 6...edge,?・・・Danbe, 8・
...Notch, 9...Working spring, 10...Vibrating tool, Jl
. . . End, 12. Holding spring, ] 3. Adjustment member, 14. Bottom, ] 5. Accommodation sleeve, 16.
Screw thread, 17...notch, ]8... enlarged part, 19...
Force/gut part, 20...notch, 20a...recess, 21
...Shaft part, 22...Mushroom-shaped head part, 23...
・Keyhole, 24...adjustment mark, 25...locking member,
26...Hammer type piston, 27...Enlarged part, 28
... recess, 29 ... transparent hole, 30 ... adjustment device,
31: Adjustment ring, 32: Suppressing member, 33: Ring end surface, 34: Slanted surface; 5: Pressing force transmission plate;
36... Central tubular part, 37... Ring flange, 3
8...Concavity, 39...Face, 40...Stotsuno ξ, 41
...Compatible stopper, 42...Slot, 43.Ki~
Groove joint portion, 44... Extrusion plunger, 45... Division, 46... Locking groove, 47... Locking body, 48... Spring, 49... Guide bunyu, 50 Support sleeve, x,
, x2... end position, y, ,! /2・Continued from page 1 ■Inventor: Eugen Bochotler Mitzterbibelazha Mörikeveke, Federal Republic of Germany

Claims (1)

[Claims] 1. A grip casing (1) that supports a drive shaft (2) inside.
) and a head casing (3) arranged at the end of the grip casing (1), the vibrating angle piece for dentists or two-phase technicians, the axis (A) of the head casing (3) being located at the end of the grip casing (1). (1) extends at an angle to the axis (B) of the head casing (
3) within 1. An impact piston (5) whose return stroke is provided by an eccentric pin (4) located at the end of the drive shaft (2).
) is arranged so as to be able to reciprocate in the axial direction, and the
A notch (8) for engaging the eccentric bottle (4) from the side is formed in the Z viston (5), and the notch (8)
The edge (6) of the shock piston (5) is provided with a step (7), and a working spring (9) which produces a working stroke after the eccentric pin (4) has crossed said step (7) ), such that the working spring (9) is tightened before the eccentric pin (4) reaches the step (7);
In addition, during the working stroke of the impact piston (5), the head casing (
The impact piston is adapted to impact the inwardly facing end (11) of the head casing (3).
) a retaining spring (12) is arranged in the head casing (3) of the vibrating tool (10).
'
and in which the spring force of the retaining spring (12) is made variable by means of the adjusting member (I3), the adjusting member (13) exclusively acts on the retaining spring (1).
2) A vibrating angle piece for dentists or dental technicians, characterized in that it is constituted by a component that acts on: 2. The adjustment member (13) is rotatably supported in the head casing (3) and accommodates the retaining spring (12), with the bottom (14') forming a spring seat for the retaining spring (12). Rotate together with the housing sleeve (15)
J function, and the receiving sleeve (15) is movable back and forth in the direction of the axis (A) relative to the head casing (3) by means of a thread (16). Angle piece described in item 1. 3. A rotatable adjustment part 4g' (13) passes through a cutout (17) provided in the bottom (14) of the receiving sleeve (15) of the oscillating tool, pointing towards the inside of the spatula 1-cuffing (3). protruding towards the end into the receiving sleeve (15) and forming a radial enlargement (18);
The enlarged portion (18) is attached to the receiving sleeve (18) on one side.
The angle piece according to claim 2, wherein the angle piece contacts the bottom (I4) of the holding spring (15) and has the other side forming a spring receiving surface for the holding spring (12). 4. The head casing (3) has at its end opposite the tool a force-ζ section (19) fixedly connected to this end, said cover section (9) being substantially mushroom-shaped. Cutout (20) for the shaft (21) of the configured rotatable adjustment member (work 3) and recess (2Oa) for the mushroom-shaped spatula 1 part (22) of the adjustment member (13) Any one of claims 1 to 3, which
Angle pieces listed in Section 1. 5. Mushroom-shaped head portion (22) of the adjusting member (13) Angle piece according to claim 4. 6. The mushroom-shaped spatula 1 part (22) of the adjustment member (13) and the force-ζ part (19) surrounding this mushroom-shaped head part (22) have adjustment marks (24). An angle piece according to item 4 or 5 of the scope. 7. The mushroom-shaped head part (22) of the adjusting member (13) and the force-ζ part (19) surrounding this mushroom-shaped head part (22) have a locking member (25). An angle piece according to any one of the ranges 4 to 6. 8. Angle piece according to one of claims 1 to 7, in which the retaining spring ('2) is constructed as a helical compression spring. 9 A retaining spring (12) supported with one end in the radial enlargement (18) of the rotatable adjustment part 4AC13)
is adapted to act with its other end on a thermometer-type piston (26) arranged in front of the vibrating tool (10). An angle piece according to any one of the items. The lO hammer-shaped piston (26) has a ring-flange-shaped enlargement (27) on the end face on the side of the vibrating tool, which enlargement (27) is provided on the end face on the impact side of the percussion piston (5). Angle piece according to claim 9, which is engageable in a corresponding recess (28). 11 The tool side end of the accommodation sleeve (15) is inserted into the spatula 1 casing (3) with the retaining spring (12) relaxed.
Depending on the screwing depth of the adjusting element (13) and thus of the receiving sleeve (15) by means of the internal thread (16), the non-mer-shaped piston (
26) with a relatively small spacing in front of the ring-flange-shaped enlargement (27) and, when screwed in relatively shallowly, with a relatively large spacing;
An angle piece according to any one of claims 2 to 10. 12 If the impact piston (5) is held) w, (] 2
), the receiving sleeve (15) being configured as a guide for the percussion piston (5). , 71)♂1 - Angle piece according to any one of claims 2 to 11. 13 The head casing (3) is connected to the impact piston (5)
Angle piece according to any one of claims 1 to 12, having a separate adjustment device (30) for changing the spring force of the working spring (9) acting on the angle piece. . 14. The adjusting device (30) is manually adjustable and has an adjusting ring (31) rotatable about the axis A of the head casing (3);
) of the adjusting ring (3]).
14. The angle piece according to claim 13, wherein the suppression member (32), which abuts the working spring (9) from the side opposite to the impact piston, is reciprocated in the direction toward the axis. 15. Angle piece according to claim 13 or 14, wherein the adjustment device (30) is lockable in the adjustment position. ]6. The old suppression part (32) is separate from the adjustment ring (31).
1M], the percussion piston is formed from the opposite side onto this repression ball on the ring end face (33) of the adjustment ring (31) on the side of the percussion piston. Claim 14 or Claim 1, wherein the inclined surfaces (34) are in wedge-like abutment.
Angle piece described in item 5. 17 Between the suppressing member (32) and the working spring (9) is a ring-shaped pressing force transmitting plate (35) surrounding the adjusting member (13).
) are provided in claims 14 to 1.
An angle piece as described in any one of items up to item 6. 18 The percussion piston (5) has a central tubular part (36) on the side facing away from the tool, in which the working spring (9), which is configured as a compression helical spring, is connected to the central tubular part (36). Angle piece according to any one of claims 1 to 17, which is guided so as to surround (36). 19. The central tubular part (36) has at its free end and also faces an outer ring flange (37) provided in the region of the bottom (4) of the receiving sleeve (15). The angle piece described in item 18. 20 A plurality of suppression elements (32), each with its associated ramp (34), are arranged uniformly distributed over the entire circumference of the adjustment ring (31).
The angle piece according to any one of items 6 to 19. 21 The inclined surface (34) has a plurality of recesses (38) provided adjacent to each other in order to engage the pressing seal, and the recesses (38) have successively larger depths in one direction. An angle piece according to any one of claims 16 to 20, having: 22 Adjustment ring (: (J) ring end face (33) on the impact piston side and head casing (3) facing this
The surface (39) corresponds to the circumferential length of the inclined surface (34) and corresponds to the stone ξ (40) and the corresponding stone horn ( 41
) Claims 16 to 20
The angle piece described in any one of the preceding paragraphs. 23 Stone, 5 (4, o) and corresponding stopper (41) 7
! l-, which protrudes from the ring end surface (33) or from (:s 9 ), and which is the surface (39) or the ring end surface (33).
a slope (34) having at least an inclined circumferential length;
Angle piece according to claim 22, consisting of a pin engaging in a slot (c4.2) coexisting with the circumferential length of the slot (42) and both end walls of the slot (42). . 24. The adjusting ring (31) is rotatably but axially immovably connected to the head casing (3) by means of a keyway connection (43).
The angle piece described in any one of the following paragraphs. 25. A force in which the key groove joint (43) is fixedly connected to the adjustment ring (31) and the head casing (3), S
Angle piece according to claim 24, which is provided between the part (19). 26, the patent in which the three surfaces of the adjusting ring (31) facing the ring end surface (33) on the impact piston side are formed in a cover part (19) fixedly connected to the head casing (3). An angle piece according to any one of claims 22 to 25. 27 The adjustment ring (13), which can be rotated together with the housing sleeve (■5), adjusts the extrusion silane gloss (4) of the vibrating tool (10).
4) has an axial extension for use with (...) and is movable in the direction of the axis (A) relative to the receiving sleeve (15) for ejecting the vibrating tool (10); , according to any one of claims 2 to 26. 28 An adjusting ring ( 13) shaft part (
21) is configured so that the cross section is not circular (
45), and this section (45) allows the shaft part (
28. Angle piece according to claim 27, in which the receiving sleeve (15) has nine notches (J7) formed in the bottom (14) of the receiving sleeve (15). 29. The angle piece according to claim 28, wherein the section (45) and the recess (I7) have a rectangular cross section.