DE7811058U1 - SCREWDRIVER WRENCH FOR MANUAL ASSEMBLY - Google Patents

Description

Utility model registration

Hans H. Prager, Engelsberg 22, 5630 Remscheid

"Screwdriver key for manual assembly"

The innovation concerns a screwdriver key for manual assembly consisting of a screwdriver insert with internal drive square and an operating tool with external connection square. The screwdriver insert consists of an insert part with non-detachable associated screwdriver eh he part. The Iimen Drive Square the insert part and the external connection

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Square of the operating tool have in adaptation to the different sizes of the operating tool according to DIN 3120, 3122 and 3123 diameter of 1/4, 3/8 or 1/2 in. As a tool for operating the screwdriver bits come z. B. reversible ratchets, sliding handles or angled handles in question with their outer square can be inserted into the inner drive square of the insert part.

In the case of the screwdriver wrenches of the type mentioned at the beginning, the screwdriver part is pressed in firmly with it connected to the mission. For this purpose, the receiving part has the insert opposite the end to be received of the screwdriver part a minus tolerance. For example the inside diameter of the receiving part should be about 0.1 mm smaller than the diameter of the one to be pressed in End of the screwdriver part.

The previous embodiment of the screwdriver key for manual assembly described above has the Disadvantage that for each type of screw due to the permanent connection between the screwdriver part and the insert each complete with the appropriate screwdriver part equipped inserts have to be purchased, which is very is costly. Especially for hobbyists and do-it-yourselfers it would be desirable if the inserts and screwdriver parts could be separated from one another and combined with one another as required would be.

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The task of the innovation is therefore to use a screwdriver key of the type mentioned to create the disadvantage of the known screwdriver wrench for the Avoids manual operation. In particular, an insert and screwdriver part should be easily separated by hand and again ■ can be plugged together so that one and the same insert can be used with

\ different screwdriver parts can be combined.

In addition, the screwdriver part should after his Insertion into the insert by hand in the latter captive

"Be held in cash.

This object is achieved according to the invention in that the actual screwdriver part can be exchanged during use

is held.

Due to the interchangeability of the screwdriver parts, or also called "bits", that is achieved with a

Use different functions can be fulfilled. One and the same insert can be used to hold "bits" of various types, such as for slotted, hexagonal, cross-slotted, multi-tooth, spline, internal square and slotted screws with mandrel are used. It should also be possible to use it as a socket wrench without a "bit" with hexagon socket according to or similar to DIN 3120 and 3124 to be used. Which can therefore be used as socket wrench inserts in accordance with or similar to DIN 3120 and 3124

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Inserts are sizes 5, 5.5, 6, 7, 8, 9, 10,

11, 12, 13, 14, 15, 16, 17, 18, 19 mm.

It is particularly advantageous to use the innovation according to the invention Execute inserts in accordance with or similar to DIN 3120 and DIN 3124. For example, during an operation with an internal square drive of 1/2 "diameter the inner hexagon part of the insert has a diameter of 6 to 19 mm. When used with a 3/8 "diameter inner drive square the inside hexagon part of the same also have a diameter of 6 to 19 mm. Is the diameter of the internal drive square 1/4 ", the diameter of the internal hexagon can be between 5 to 15 mm lie. The "bits" that match the dimensions mentioned have a corresponding external drive hexagon diameter from 5, 5.5, 6, "7, 8, 9, 10, 11,

12, 13, 14, 15, 16, 17, 18, 19 mm.

According to a further advantageous embodiment of the innovation, these are one end of the screwdriver part designed as an external drive hexagon and one end of the insert as an internal hexagon, with external drive and hexagon socket in their cross-sectional dimensions are adapted to each other so that the screwdriver part can be inserted with a sliding fit.

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· · I · ItI

As a result of the minimal play between the hexagon f

Connecting parts of the insert and screwdriver part 1

the latter can easily be replaced by hand against another §

Screwdriver part can be replaced. The necessary- I

This game is achieved by putting the inside six - |

edge of the insert to accommodate the outer drive six | edge of the screwdriver part a tolerance according to §

DIN 3124 owns. Due to this fact, the 1st

Can also be used without an inserted very screwdriver part \ in the usual and advantageous manner as a socket wrench j insert with hexagon socket in accordance with or similar to DIN 3120 f

and DIN 3124 are used. I.

So that the "bits" are held captive after insertion with their outer drive hexagon in the inner hexagon of the insert, according to an advantageous embodiment of the innovation in the outer drive hexagon of the
Screwdriver part a ball acted upon by the pressure of a spring be inserted and held in such a way
that the latter partially protrudes beyond the surface of the outer hexagon.

According to another advantageous embodiment of the innovation, a snap ring or a snap ring can also be used to hold the screwdriver part with its external hexagon in the internal drive hexagon of the insert
a spring is arranged.

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I ■ ■ · ·

According to a further advantageous alternative to the innovation, it is also possible for the purpose of connection of the steel parts in use in such a way to use a permanent magnet that the screwdriver part is held captive after its insertion.

The innovation is schematically based on various exemplary embodiments shown in the drawings. It shows:

Fig. 1 - the spatial representation of the screwdriver key according to the innovation best | starting from an insert with an operating tool inserted in it in the form of an angled handle and plugged in by hand

S screwdriver part for cross-slotted

i screws and a spatial representation J

such a screw,

Fig. 2 - the spatial representation of the innovation according to the screwdriver key according to 1 with arranged separately from one another

nice parts,

3 - the side view of the insert according to the innovation,

FIG. 4 - the top view of the insert according to the invention according to FIG. 3 with a view of the

Inside drive square part for receiving |

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of the external connecting square of the operating tool ,

Fig. 5 - the use according to the innovation according to Flg. 3 and 4 seen from below with a view of the Internal hexagon to accommodate the external drive hexagon of the screwdriver part or of hexagon screw heads when using as a socket wrench insert according to or similar to DIN 3120 and 3124,

6 - a cross section through the insert according to the invention and the view of an inserted therein and the screwdriver part held in it by means of a ball and spring arrangement,

7 - a cross section through the insert according to the innovation and the view of an inserted therein, screwdriver part held in place by means of a snap ring and

Fig. 8 - a cross section through the innovation according to: Insert and the view of one inserted in it, held in place by means of magnets Screwdriver part.

The screwdriver wrench according to the innovation consists of an insert 1 with an internal drive square 2 at one of his and an internal hexagon 3 at his

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other end. The inside drive square 2 is used to Recording of the external connecting square 4 of an actuating tool 5, such as a ratchet or a sliding handle.

The inside hexagon 3 is used to hold the outside drive hexagon 6 of a screwdriver part 7, for example for cross-head screws 8. The diameter the internal hexagon 3 of the insert 1 is dimensioned such that the external drive hexagon 6 by hand can be inserted by means of a sliding seat.

To hold the very screwdriver part 7 with his External drive hexagon 6 in the internal hexagon 3 of the Insert ± Can a ball acted upon by the pressure of a spring (not shown in the drawing) 9 so embedded in the external drive hexagon 6 of the screwdriver part 7 and held that this in part protrudes beyond the surface of the external drive hexagon 6. When assembling a screwdriver part 7 and insert 1 cause the friction against the wall of the hexagon socket 3 of the insert 1 pressing ball 9 that the two parts are held captive in each other but still effortlessly by hand again are separable (see. Fig. 6),

In Fig, 7 an embodiment is shown in which in a groove 10 on the inner hexagon 3 of the innovation according to the invention

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«Ml (t

Insert 1, a snap ring Il or a spring eiiigelas- 'is sen' which or after insertion of the male drive hexagon 6 of the screw part 7 in korrespondie- ^rt rend thereto engages on the latter disposed notches 12] and so the screwdriver part 7 holds .

8 shows a further embodiment of the renewal ρ

appropriate use 1. In use 1 is in the area between f

Inside drive square 2 and inside hexagon 3 a bar magnet 13 let in such that its magnetic effect in | The direction of the hexagon socket 3 acts. After inserting the f

Screwdriver part 7 with its external drive hexagon 6;

j is the latter by means of the magnet 13 in the inserted | -

Position held magnetically. f

It goes without saying that the described and illustrated embodiments of the innovation according to the invention

Screwdriver key only advantageous Ausgestal- f

represent developments of the inventive concept. The innovation g

Corresponding screwdriver wrench is for all screw fj

types and sizes can be used. f

Protection claims ;

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• · · ... JtI

- 12 -

Reference list:

1 - use

2 - Inside drive square

3 - internal hexagon

4 - external connecting square

5 - actuation tool

6 - Outside — Drive Hex

7 - screwdriver part

8 - Phillips screw

9 - bullet

10 - ring groove

11 - snap ring

12 - notches

13 - bar magnet

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Claims (4)

Protection claims; 1.) Screwdriver wrench for manual assembly consisting of a screwdriver insert with internal drive square and an actuation tool with external connection s-square, characterized in that the actual screwdriver part (7) in use (1 ) is kept replaceable. 2.) Screwdriver key according to claim 1, characterized in that one end of the screwdriver part (7) is designed as an external drive hexagon (6) and one end of the insert (l) is designed as an internal hexagon (3) with external drive and internal hexagon (6 resp. 3) are matched to one another in their cross-sectional dimensions so that the screwdriver part (7) is left underneath a minimal play in the insert (1) with sliding seat can be inserted. 3.) Screwdriver key according to claim 1 and 2, characterized in that the cross section of the hexagon socket (3) of the insert (1) is dimensioned in such a way that it can be used as a socket wrench in accordance with or similar to DIN 3120 and 3124 for loosening or fastening external hexagon screw heads can be used with sizes 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 mm. 7811058 07/27/78 4.) screwdriver key according to claim 1, 2 and 3, characterized in that for holding the screwdriver part (7) with its external drive hexagon (6) in the internal hexagon (3) of the insert (l) in the external drive hexagon (6) of the screwdriver part (7) a ball (S) acted upon by the pressure of a spring in this way is let in and held so that the latter partially protrudes beyond the surface of the external drive hexagon (6) 5.) Screwdriver key according to claim 1, 2 and 3, characterized by that for holding the screwdriver part (7) with its external drive hexagon (6) in the internal hexagon (3) of the insert (l) in the latter a snap ring (H) is arranged in an annular groove (10). 6 ") screwdriver key according to claim 1, 2 and 3, characterized in that for holding the screwdriver part (7) with its external drive hexagon (6) in the hexagon socket (3) of the insert (1) in the latter a magnet (13) is inserted so that the external drive hexagon (6) of the screwdriver part (7) on rear end of the hexagon socket (3) of the insert (1) is held after joining the parts (7 and 1). 7811058 07/27/78