DE19750703A1 - Multiple screwdriver tool - Google Patents

Abstract

The tool has screwing points for square-head cap screws, nuts, etc.. One screw-driving point is formed by a flat or screw head point (3) on a blade shaft (2). A second point is formed by a socket spanner profile (8), which is the head of a screw sleeve (7) moving on the shaft. A third special screwdriving point is formed by locking noses (12) on a flange (11) on the sleeve. In a spring-loaded front working position the sleeve is held in positive connection with the blade shaft via inner and outer hexagonal profiling (5,6) on one part. In idling position, achieved by overcoming the spring load, the sleeve is freely turnable on the shaft.

Description

The invention relates to a hand in the manner of a screwdriver actuating screwing tool with several, on a common Tool shank arranged screw action points for actuating Cap screws, nuts or similar special screw members that are independent of each other in view of their function.

Multiple screwing tools with several on one joint Tool shank arranged screw tool points are known in principle. Most of the time they serve the purpose in this version, on a common Tool shank two screw action points of different types or sizes to have available to reduce the range of tools, or for one or the other tool execution immediately with just one access to have suitable other tools on hand. So are more typical of a number Screw connections already tool combinations as special tools developed and manufactured, which spread in an advantageous manner Have found application.

The task and the result from requirements of the same type Purpose of the present invention.

Then the screwing tool to be developed is to be developed without removing the tool from the Having to lend a hand, it is first possible to use a screw connection a screwdriver blade to complete in one go to counter this screw connection with the usual means, a nut. After that, another special screw connection with a special executed screw-action point take place, this work cycle with a single, three effective points unifying screwing tool in a simple manner and Way should be made possible.

This object is achieved with a multiple screwing tool solved, as it is according to the descriptive generic term in connection with me  explanatory drawing and the wording of the claims closer has been characterized.

The advantages of this new development of a combination tool for demanding screw connections for assembly in the device and Motor vehicle construction is obvious and does not require any further explanations.

One fact deserves to be emphasized, as will be shown become. Namely that that with this tool design on simple but has succeeded in a sensible way to counter one in a confined space Screw connection, such as for adjusting eccentrics Brake systems is common, only with a handling of the Run screwing tool without additional tools and Need handles. In addition to these functional advantages added that this tool with simple technological means and is inexpensive to manufacture.

The solution according to the invention is shown below using an exemplary embodiment are explained in more detail. The corresponding drawing shows in

Fig. 1 shows the overall view of the multiple screwing tool and in

Fig. 2 shows the partial longitudinal section through the active tool parts on the tool head part on an enlarged scale
represents.

The multiple screwing tool is designed in the manner known in principle of a screwdriver, namely with a tool handle 1 and the blade shaft 2 connected to it in a rotationally fixed manner, together with a flat or cross-slot active point 3 . The blade shaft 2 has a continuous round profile and has an additional screwing aid 4 which is arranged directly on the tool handle 1 . In the front section of the blade shaft 2 adjacent to the active point 3 , the latter has an outer hexagonal profile 5 , which is able to interact with a similar inner hexagonal profile 6 of a screw sleeve 7 and is thus rotationally fixedly connected to it. In this position, the screw function is exercised by the screw sleeve 7 with its socket wrench profile 8 mounted on the end face. However, the screw sleeve 7 is also longitudinally displaceable on the blade shaft 2 after the handle 1 and can thereby be brought out of said operative engagement 50 so that it can be freely rotated and the screwing function can only be performed with the active point 3 . The longitudinal displacement of the screw sleeve 7 takes place against the action of a spring 9 , which is arranged on the neck part of the blade shaft 2 and is partly supported on the screwing aid 4 and on the other hand in a support sleeve 10 which can be freely rotated on the blade shaft 2 . The screw sleeve 7 carries approximately in its central region a flange 11 with detents 12 serving as a point of action, with the aid of which a further screwing function, for. B. a special screw can be exercised. It is also equipped with a hexagon screwdriver 13 .

The way of working with this multiple screwing tool is, for example the following:

If a screw with a flat or Phillips slot is to be screwed in or out first, the screw sleeve 7 is pushed back together with the support sleeve 10 against the action of the spring 9 , whereby the slot 3 is exposed and can be brought up to the screw head.

If, however, the socket wrench profile 8 is used, the screwing tool remains in the starting position shown in the drawing, FIG. 1, where, as stated, the screw sleeve 7 is connected to the outer hexagonal profile of the blade shank 2 in a rotationally locking manner and is powerfully screwed with the socket profile 8 is feasible.

If screwing is required with the special screwing tool working point, in which the flange 11 and the locking lugs 12 are brought into engagement with the corresponding working points on the screw or nut, the screwing tool also remains in the aforementioned starting position.

Reference list

1

Tool handle

2nd

Blade shank (tool shank)

3rd

Flat or cross slot knitting point

4th

Screwing aid

5

outer hexagon profile on the blade

6

inner hexagon profile on the screw sleeve

7

7

Screw sleeve

8th

Socket wrench profile

9

feather

10th

Support sleeve

11

flange

12th

Latches

13

Screwing aid

Claims (3)

1. Screwing tool with several screw acting points arranged on a common blade or tool shank for actuating cap screws, nuts or similar specially designed screw members, characterized in that

• - One of the screw action points is formed by the flat or cross-slot action point ( 3 ) arranged in one piece on a blade shaft ( 2 ), while
• - A further screw-type working point is formed by a socket wrench profile ( 8 ), which is the head part of a screw sleeve ( 7 ) which is longitudinally displaceable on the blade shaft ( 2 ), the screw sleeve ( 7 ) in its front, by a spring ( 9 ) via a Support sleeve ( 10 ) effect working position with the blade shaft ( 2 ) by an inner and outer hexagonal profile ( 5 , 6 ) arranged on the two functional parts is held in a rotational connection, while it is produced in a by overcoming the spring ( 9 ) Idle position on the blade shaft ( 2 ) can be freely rotated by disengaged hexagonal profiling ( 5 , 6 ), and that
• - A third, specially procured screw action point is formed by on a on the screw sleeve ( 7 ) fixed flange ( 11 ) formed locking lugs ( 12 ).

2. Screwing tool according to the features in claim 1, characterized in that on the blade shaft ( 2 ), the tool handle ( 1 ) immediately upstream, a screw aid ( 4 ) formed by a hexagonal profile is arranged. 3. Screwing tool according to the features in claim 1, characterized in that the rear end of the screw sleeve ( 7 ) is designed as a screwing aid ( 13 ) with a hexagonal profile.