DE8531992U1 - Handle part of a hand tool for doctors, in particular dentists - Google Patents

Description

Wi-flV --- «bit.

ό

"Ft ti"

November 5, 1985

G 9713-d 1 a 1

Dr, Manfred Münch, 744o Nürtingen

Handle part of a hand tool for doctors, in particular dentists

The invention relates to a metal, longitudinally shaped handle part of a craft stuff for doctors, especially dentists, at its

Tool end, the actual tool is arranged or replaceably fastened and the one to the

κ, gripping area facing the tool end to the system

§ owns the finger when holding the handle in a pencil-like manner or in some other way.

ι Hand tools with such a handle part that has an I.

Screwdriver, a pestle, a chisel, a length measuring pin, etc. as the actual tool are used, for example, in oral surgery work. It can be seen that here the The handle part should not only be comfortable but also slip-proof and firm in the hand, around the respective

• «4

'Perform manipulation safely, quickly and in a targeted manner

{to be able to and not unnecessarily discomfort the patient

to prepare.

The object of the invention is therefore to provide a handle

part of the type mentioned to create the

meets these requirements in an optimal way,

According to the invention, this object is achieved by that the gripping area two with a longitudinal distance from each other

arranged sections with polygonal cross-section and

has between these a recessed intermediate section with a circular cross-section.

Such a handle part can be conveniently taken so; that the index finger is at the front, the end of the tool

facing polygonal section and the thumb on

'rear polygonal section rests during the

Middle finger on the side of the recessed intermediate section with a circular cross-section. Due to the polygonal sections, the handle part Hold it in a torsion-proof manner without using any particular force or you can move it in front of it by means of a swivel movement Turn everything with the thumb if the manipulation in question requires it.

In addition to this non-slip grip in the circumferential direction

- · 3 * ■

there is also a secure hold in the longitudinal direction. This is mainly due to the recessed intermediate section laterally engaging middle finger, the one seen in the longitudinal direction against the transitions to the. two adjacent, larger diameter polygonal sections abuts. Also the index finger and the thumb can extend into this intermediate section and over the edges between the Intermediate section and grab the polygonal sections. The circular cross-section of the intermediate section has the further advantage that it rolls off the middle finger when the handle is intentionally turned.

It is also advantageous that the polygonal sections and the recessed intermediate section, so to speak Let feel blind, so that you can pick up the handle part unseen from a shelf and in place can lead.

The intermediate section is especially handy when it is indented like a fillet.

Another useful measure is that in the direction of the tool end away on the Tool end facing away from Meh · .-> - «. Section recessed ring section with a circular-round cross-section

i I

• * · · 4 ti

Il · ·
II *

III · · * I I *

follows, which is limited by an annular elevation at the end of the gripping area. At this elevation the middle area of the thumb can be applied, which further improves the hold in the longitudinal direction.

An embodiment of the invention as well as further expedient refinements are now based on the Drawing described in detail. Show it:

1 shows a handle part according to the invention in a side view,

FIG. 2 shows the handle part according to FIG. 1 in cross section according to the section line II-II in FIG. 1 and

3 shows the same handle part held by one hand.

The handle part 1 shown consists of metal and has a longitudinal shape with rotationally symmetrical everywhere Cross-section on. At one end, the tool end 2, a medical tool (not shown) be attached. The arrangement is such that a conically tapering end section 3 is present, the one exiting at the end of the tool hole 4 for exchangeable mounting of tools

possesses, so that the handle part can be assigned an entire set of tools. To attach the respective Tool, the wall of the bore 4 has an internal thread. It goes without saying that the handle part can also be provided with a permanently attached tool. As a result of the conical tapering of the end section 3 you can also get into tight spaces.

The handle part can be held in the hand like a pencil or a fountain pen, for example as shown in FIG. For this purpose, there is an end section in the front half of the handle part 3 found subsequent gripping area 5 for the application of the fingers. This has two with a longitudinal distance mutually arranged sections 6,7 with a polygonal cross-section and a recessed one between them Intermediate section 8 with a circular cross-section. The latter is expediently indented like a fillet. As can be seen from Fig. 3, the index finger 9 on the front polygonal portion 6, of protruding from the conical end section 3, while the thumb 1o against the rear polygonal section 7 is held. Due to the polygonal nature of the sections 6 and 7, the result is a more secure, non-rotatable one Stop. The index finger 9 and the thumb Io can also extend into the recessed intermediate section protrude so that they are longitudinally against the

rear edge 11 of the front polygonal section 6 or against the front edge 12 of the rear polygonal section 7 and snuggle around it, which also gives a firm hold in the longitudinal direction. The middle finger 13 is led past the side opposite the thumb 1o and lies to the side at the recessed intermediate section 8. In this way the middle finger also bi'det 13 so to speak a stop against slipping of the handle part in the longitudinal direction, since it is between the both edges 11 and 12 lies.

If you need to turn the tool every time you use it, all you need is your thumb to pivot up or down, whereby the grippy because of its polygon in the circumferential direction rear polygonal section 7 is taken. The recessed intermediate section 8 rolls on Middle finger 13 off.

In the direction away from the end of the tool, the rear polygonal section 7 is followed by a recessed ring section 14 with a circular cross-section which is delimited by an annular elevation 15 at the end of the gripping area 5. This ring section 14 is also expediently bulged in the manner of a hollow. He can be about the same Extent as the intermediate section 8 be deepened.

· * <Ill «·

Hit « til Il lit

11

It is also provided that the ring section 14 is arranged approximately half the length of the handle part 1 is.

The recessed ring portion 14 and the protrusion 15 serve the following purposes:

The thumb 1o extends obliquely backwards along the handle so that it is also the ring section 14 opposite and can be pressed against this. He nestles in this one, so that there is also a hold to the front and back at this point »

The axial length of the polygonal sections 6, 7 and the recessed intermediate section 8 corresponds to Embodiment about a finger width and is about one to two centimeters each and is expediently in the range of 1.5 cm. The following applies to the axial length of the recessed ring section 14 similar, it is expediently about 0.5 to 1.5 cm and is preferably in the range of 1 cm. The arrangement in the exemplary embodiment is such that the recessed ring section 14 is shorter than the polygonal sections 6, 7 and the recessed intermediate section 8. The mentioned Dimensions result in a particularly handy gripping area.

Double truncated cone, so that the annular elevation 15 runs linearly around and the thumb 1o something can also nestle around the elevation 15.

The ring-shaped elevation 15 is an annular bulge, followed by a cylindrical region 16 with a diameter smaller than the annular bead 15, which extends up to in the area of the end opposite the tool end 2 extends where a thickening 17 can be arranged can. In the exemplary embodiment, the annular elevation 15 has a longitudinal ^ corresponding to the side view essentially cut the shape of a single figure

For example, depending on the tool used, j! in the case of a chisel or ram, on the end-side thickening 17 with a hammer-like percussion instrument be taken. In such a case, the Handle part can also be held differently than shown, namely like the handle of a usual titmouse, that is with the hand grasping the handle like a fist. Here, too, the polygonal sections are 6, 7 and the |

as a result of the recessed intermediate section 8 and the recessed ring section 14 resulting ring edges favorable for a firm hold in the direction of rotation and longitudinal direction.

With the exception of the polygonal sections 6.7, the handle part expediently has a circular cross section.

ft · t ·

The handle part is also preferably a one-piece rotating part and is formed by one of the polygonal sections in cross section 6.7 corresponding polygonal profile piece formed, wherein the polygonal sections are 6.7 are left profile piece sections. This results in a particularly simple production ^ since one only a commercially available, cut-to-length polygonal profile piece must turn off the desired contour accordingly.

The polygonal sections 6, 7 are expediently hexagonal sections, but in principle it could be also, for example, around an octagon or the like. Act.

Claims (1)

5.11.1985 G 9713 -dial Dr. Manfred Münch, 7440 Nürtingen Handle part of a hand tool for doctors, in particular dentists Expectations 1. Made of metal, exhibiting a longitudinal shape Handle part of a hand tool for doctors, in particular dentists, at the tool end of the actual tool is arranged or can be fastened interchangeably and the one gripping area facing the user for placing the fingers when holding the handle in a pencil-like manner or in some other way, characterized in that that the gripping area (5) has two longitudinally spaced sections (6, 7) with a polygonal cross-section and between these has an intermediate section (8) with a circular cross-section. 2. Handle part according to claim 1, characterized in that the intermediate section (8) is indented like a fillet is. 3. Handle part according to claim 1 or 2, characterized in that in the direction away from the tool end the polygonal section (7) facing away from the tool end is a recessed ring section (14) with a circular ring Cross section follows, which is limited by an annular elevation (15) at the end of the gripping area (5). 4. Handle part according to claim 3, characterized in that that the recessed ring section (14) is breathed in like a fillet. 5. Handle part according to claim 3 or 4, characterized in that the ring cut (14) is approximately the same The extent to which the intermediate section (8) is deepened. 6. Handle part according to one of claims 1 to 5, characterized in that the axial length of the Polygonal sections (6,7) and the recessed intermediate section (8) are each about 1 to 2 cm and is expediently in the range of 1.5 cm. 7. Handle part according to one of claims 3 to 6, characterized in that the axial length of the recessed ring section (14) is about 0.5 to 1.5 cm and expediently in the range of 1 cm 1 is. 8. Handle part according to one of claims 3 to 7, characterized in that the recessed ring portion (14) is shorter than the polygonal sections (6,7) and the recessed intermediate section (8). 9. Handle part according to one of claims 3 to 8, characterized in that the annular elevation (15) is an annular bead on which a cylindrical area with a smaller diameter than the annular bead follows, which extends into the area of the end opposite the tool end, where a thickening (17) can be arranged. 10. Handle part according to one of claims 3 to 9, characterized in that the annular elevation (15) seen in longitudinal section essentially has the shape of a truncated double cone. 11. Handle part according to one of claims 3 to 1o, characterized in that the recessed ring portion (14) is arranged approximately half the length of the handle part, 12. Handle part according to one of claims 1 to 11, characterized in that it has a at the end of the tool from the facing polygonal section (6) starting from a conically tapering end section (3). 13. Handle part according to claim 12 _S, characterized in that • · · · it Ul 4 · I · * that the conical end section (3) has a hole (4) exiting at the end of the tool for exchangeable reception of the tool. 14. Handle part according to one of claims 1 to 13, characterized in that it has a circular cross-section _{with the exception of the polygonal sections (6 S 7).}