DE202009004936U1 - Screw positioning device with the possibility for use in two tool heads with different dimensions - Google Patents

Abstract

Screw positioning device with the possibility of using two tool heads of different dimensions, comprising a mounting assembly (20), a sliding sleeve (40) and a magnetically attracting member (50), the Schraubenpositioniervorrichtung for the attachment of a tool head and for a magnetic attraction of a screw (70) adapted to the tool head, and wherein the mounting assembly (20) comprises a tool shank (21), a spring (22), a mounting tube (23) and a mounting sleeve (24), the tool shank (21) at its an end with a tool rod (211) on which a sliding tube (212) can be attached, and at its other end with a tool groove (213) is provided, and wherein a stop ring (214) on the outside of the sliding tube (212) is formed, and wherein the spring (22) on the outside of the tool shank (21) placed and provided in the interior of the mounting tube (23), and wherein the mounting tube (23) at its ei NEN end inside with a stop ring (231) and the outside with a Lagebegrenzungsrand (232) is provided, and wherein

Description

The Invention relates to a hand tool for clamping, connecting, Removal or clamping, in particular a positioning device for exchangeable tool heads (nuts) a hand tool, wherein the positioning device for the Connection of both tool heads in different designs suitable is. Under length change can be a magnetic attraction of the screw by an adjusted setting the positioning device also take place.

A Schraubenpositioniervorrichtung with the possibility of flexible adaptation to the execution of tool heads, as in 1 to 3 shown is from the US 6520509 "SCREW GUIDE DEVICE WITH DRILL BIT / SCREW BIT AND COUNTER SINK / DRILL STOP MEANS" known. In this Schraubenpositioniervorrichtung is at least one sleeve 12 present outside at the front end of a tool shank 10 is appropriate. Are several pods 12 provided, they are stored one above the other like a step. In the end section of the tool shank 10 there is a longitudinal bore 11 in which a tool head 13 is housed. The sleeve 12 is at her Aufsteckteil with a resilient latching section 121 provided with an inwardly projecting stop 122 and an adaptive opening 123 at the other end of the sleeve 12 are formed.

The use of the above-mentioned device is done in such a way that the tool head 13 manually on a screw 14 is placed so that they adapt to each other and interlock, whereupon the sleeve 12 with the hand pulled so that the sleeve 12 in length about with the screw 14 is identical. After that, the tool shank 10 and the screw 14 aligned with the location to be fastened and adapted to the opening 123 placed on the surface to be fastened, to easily rotate the tool shank 10 and a reliable tightening of the screw 14 to enable. When attaching the sleeves 12 are used, which are aligned to the location to be fixed and provide vertical positioning. This will avoid the screw 14 is screwed in at an angle.

• 1. Die oben erwähnte Schraubenpositioniervorrichtung ist nicht für die magnetische Anziehung der Schrauben 14 unterschiedlicher Ausführungen geeignet. Die Schraube 14 muss in der Hülse 12 untergebracht sein, so dass sie kleiner sein muss als der kleinste Innendurchmesser der Hülse 12. Daher ist der Einsatz nur für die Schraube 14 möglich, die kleiner ist als der kleinste Durchmesser der Hülse 12. Die Anwendung auf die Schraube 14 mit größeren Abmessungen oder in spezieller Ausführung ist jedoch nicht möglich. Damit sind die Anwendungsgebiete in erheblichem Maße eingeschränkt.
• 2. Nach der Anziehung der Schraube 14 ist das Innere der Hülse 12 im Befestigungsvorgang nicht sichtbar. Besteht ein zu großer Unterschied zwischen dem Außendurchmesser der Hülse 12 und der Schraube 14, tritt ebenfalls beispielsweise die Befestigungsabweichung auf. Da die Befestigung der im Inneren der Hülse 12 befindlichen Schraube 14 nicht sichtbar ist, kann eine rechtzeitige Justierung nicht vorgenommen werden.
• 3. Die Hülse 12 ist nur für die bei der Befestigung erforderliche, vertikale Positionierung der Schraube 14 vorgesehen. Diese ist jedoch beim Abnehmen der Schraube 14 nutzlos.
• 4. Der durch die Hülse 12 gehaltene Werkzeugschaft 10 ist nur unter der Bedingung verwendbar, bei der die Schraube 14 senkrecht zur Befestigungsfläche steht. Unter anderen Bedingungen ist die Anwendung aber nicht geeignet. Damit sind die Anwendungsgebiete sehr eng begrenzt.

Although the construction mentioned above is by pulling / pushing the sleeves 12 adapted to tool heads 13 adjustable in different versions, ensures reliable positioning of the screw 14 and prevents oblique screwing. In use, however, there are still many disadvantages:

• 1. The above-mentioned screw positioning device is not for the magnetic attraction of the screws 14 suitable for different versions. The screw 14 must be in the sleeve 12 be housed so that it must be smaller than the smallest inner diameter of the sleeve 12 , Therefore, the use is only for the screw 14 possible, which is smaller than the smallest diameter of the sleeve 12 , The application to the screw 14 with larger dimensions or in a special design is not possible. Thus, the application areas are limited to a considerable extent.
• 2. After attraction of the screw 14 is the inside of the sleeve 12 not visible in the fastening process. If there is too much difference between the outer diameter of the sleeve 12 and the screw 14 Also, for example, the attachment deviation occurs. As the attachment of the inside of the sleeve 12 located screw 14 is not visible, a timely adjustment can not be made.
• 3. The sleeve 12 is only for the vertical positioning of the screw required for fixing 14 intended. However, this is when removing the screw 14 useless.
• 4. The through the sleeve 12 held tool shank 10 is only usable under the condition where the screw 14 is perpendicular to the mounting surface. Under other conditions, the application is not suitable. Thus, the fields of application are very narrow.

Other examples include "extension rod assembly" and "screw positioning device for a screwdriver" US 7096768 respectively. US 7124665 both of which have been proposed by the inventor of the present invention. These two designs use a mounting sleeve that positions the tool shank. The mounting sleeve has a magnetically attracting element, with which the screw is held in position. At the same time, the screw is fastened by the tool shank. The mounting sleeve provides the ability to position the tool shank in a single design. This means that it is not possible to use the mounting sleeve for the assembly of another tool shaft with a second embodiment and at the same time to hold the screw with the magnetically attracting element. The two conventional constructions have at the same time the disadvantage that they can not be used for two tool shanks with different designs.

At present, the conventional Schraubenpositioniervorrichtungen can be used only for a tool head in a certain embodiment. Therefore, it is necessary to replace suitable Schraubenpositioniervorrichtungen when tool heads of different lengths are used. This leads to too many tools being carried along and the screw positioning need to be replaced awkward. Hand tools that have similar functions, but do not provide opportunities for use in screws with multiple or special versions. This still occurs the deviation problem when screwing the screw. In addition, these hand tools are only suitable for use in vertical positioning when screwing the screw. In addition, these are useless when the disassembly process is performed. These properties are not optimal.

Of the Invention is based on the object, a Schraubenpositioniervorrichtung to create that for use in two tool heads different version is suitable.

These The object is achieved by a Schraubenpositioniervorrichtung with the possibility for use in two tool heads with different ones Dimensions having the features specified in claim 1. Further advantageous developments of the invention will be apparent from the Subclaims forth.

According to the The invention will be a screw positioning with the possibility For use in two tool heads with different dimensions created a mounting assembly, a sliding sleeve and a magnetically attracting member, wherein the screw positioning device for the attachment of a tool head and for a magnetic attraction of a screw in adaptation to the tool head provides.

The Mounting assembly has an end section that gives the possibility offers to connect a machine tool with the tool shank. The outer periphery of the other end portion is with a Location boundary provided. At the other end of the tool shank a tool groove is formed. The sliding sleeve points inside a through hole, wherein a Lagebegrenzungsrand at the formed inside boundary wall of an end of the through hole is. The mounting assembly is slidable in the through hole the sliding sleeve arranged that the Lagebegrenzungsrand the sliding sleeve for a position limitation of one end the mounting assembly provides. The magnetically attractive element is arranged at the other end of the through hole of the sliding sleeve. By assembling the above-mentioned components results a screw positioning according to the invention with the possibility for use in two tool heads with different dimensions.

• 1. Die Aufgabe der Erfindung besteht darin, eine Schraubenpositioniervorrichtung zu schaffen, die für den Einsatz in zwei Werkzeugköpfen unterschiedlicher Ausführung geeignet ist. Unter Verwendung des magnetisch anziehenden Elements erfolgt derart eine praktische Verstellung in Abhängigkeit von den Werkzeugköpfen unterschiedlicher Länge durch die Verschiebung der Gleithülse, dass Endabschnitte der Werkzeugköpfe irgendeiner Länge gleich lang sind, wobei das magnetisch anziehende Element teilweise herausragt. Auf diese Weise bewirkt das magnetisch anziehende Element eine magnetische Anziehung, wenn der Endabschnitt des Werkzeugkopfs in die Schraube eingreift. Daher bietet die Schraubenpositioniervorrichtung die Möglichkeit zum Einsatz in zwei Werkzeugköpfen mit unterschiedlichen Abmessungen.
• 2. Greift der Endabschnitt des Werkzeugkopfs in die Schraube ein, wirkt die von dem magnetisch anziehenden Element erzeugte Anziehungskraft gleichzeitig auf den Rand der gehaltenen Schraube ein. Diese beiden vorläufigen Stellungen zur Befestigung der Schraube sorgen für ein stabileres Einschrauben und verhindern dabei auch ein schräges Einschrauben.
• 3. Bei der erfindungsgemäßen Schraubenpositioniervorrichtung gewährleistet das am vorderen Ende der Gleithülse angeordnete, magnetisch anziehende Element eine magnetische Anziehung der Schraube. Diese am vorderen Ende vorkommende, magnetische Anziehung ohne einer am Rand vorkommenden Beschränkung bietet die Möglichkeit zum Einsatz von Schrauben unterschiedlicher und sogar spezieller Ausführung. Daher weist die erfindungsgemäße Schraubenpositioniervorrichtung einen breiten Anwendungsbereich auf.
• 4. Die magnetisch gehaltene Schraube ist am vorderen Ende der Gleithülse der erfindungsgemäßen Schraubenpositioniervorrichtung angeordnet. Da diese sich außen an der Schraubenpositioniervorrichtung befindet, ist der Schraubvorgang der Schraube vollkommen sichtbar. Daher kann eine rechtzeitige Justierung vorgenommen werden, wenn ein Einschraubfehler auftritt. Außerdem ist die erfindungsgemäße Schraubenpositioniervorrichtung für jede Arbeitsfläche geeignet.

Compared with the prior art, the following advantages can be realized with the screw positioning device according to the invention, for example:

• 1. The object of the invention is to provide a Schraubenpositioniervorrichtung, which is suitable for use in two tool heads of different design. Using the magnetically attracting member, such a practical adjustment depending on the tool heads of different length by the displacement of the sliding sleeve, that end portions of the tool heads of any length are the same length, wherein the magnetically attracting member partially protrudes. In this way, the magnetically attractive element causes a magnetic attraction when the end portion of the tool head engages in the screw. Therefore, the Schraubenpositioniervorrichtung offers the possibility for use in two tool heads with different dimensions.
• 2. If the end portion of the tool head engages the screw, the force of attraction generated by the magnetically attracting element simultaneously acts on the edge of the held screw. These two provisional positions for fastening the screw ensure a more stable screwing in and also prevent oblique screwing in.
• 3. In the screw positioning device according to the invention arranged at the front end of the sliding sleeve, magnetically attracting element ensures a magnetic attraction of the screw. This magnetic attraction at the front end, without a peripheral restriction, offers the possibility of using screws of different and even special design. Therefore, the Schraubenpositioniervorrichtung invention has a wide range of applications.
• 4. The magnetically held screw is arranged at the front end of the sliding sleeve of the screw positioning device according to the invention. Since this is located on the outside of the Schraubenpositioniervorrichtung, the screwing of the screw is completely visible. Therefore, a timely adjustment can be made when a screwing error occurs. In addition, the screw positioning device according to the invention is suitable for any work surface.

in the The invention and its embodiments are described below explained in detail the drawing. In the drawing shows:

1 a front view of a conventional construction after assembly;

2 a front sectional view of a forth conventional construction after assembly;

3 a section through a further construction according to the prior art;

4 an assembled perspective view of a Schraubenpositioniervorrichtung invention;

5 an exploded perspective view of a Schraubenpositioniervorrichtung invention after assembly;

6 a section through a Schraubenpositioniervorrichtung invention after assembly;

7 a section through a Schraubenpositioniervorrichtung invention, which is used for a tool head;

8th a section through a screw positioning according to the invention, which is used for another tool head;

9 an exploded perspective view of another embodiment of a screw positioning according to the invention;

10 a section through the further embodiment of a screw positioning according to the invention after assembly;

11 an exploded perspective view of yet another embodiment of a screw positioning according to the invention; and

12 a section through the turn another embodiment of a screw positioning according to the invention after assembly.

Like from the 4 to 6 can be seen, a Schraubenpositioniervorrichtung invention has a mounting assembly 20 , an O-ring 30 , a sliding sleeve 40 and a magnetically attractive element 50 on. The screw positioning device provides for the attachment of a tool head and for a magnetic attraction of a screw 70 to the tool head 60 . 60A to be adapted. The mounting assembly 20 includes a tool shank 21 , a feather 22 , a mounting ear 23 and a fastening sleeve 24 , where the tool shank 21 from a tool bar 211 and an attached on this slide tube 212 consists. The tool bar 211 has an end portion over which a machine tool with the tool shank 21 connected is. At the other end of the tool shank 21 is a tool groove 213 educated. There is also a stop ring 214 outside on the sliding tube 212 formed, the tool shank 21 made of magnetically attracting metal.

The feather 22 is outside on the tool shank 21 put on and inside the mounting tube 23 intended.

The mounting tube 23 is at its one end in with a stop ring 231 and outside with a Lagebegrenzungsrand 232 and a receiving groove 233 provided, with the tool shank 21 together with the spring 22 so inside the mounting tube 23 that is the spring 22 tense between the two stop rings 214 . 231 is arranged.

The mounting sleeve 24 gets into the mounting pipe 23 introduced and thus sits on the tool shank so 21 that the tool shank 21 movable inside the mounting tube 23 Is blocked.

The O-ring 30 is in the range of the receiving groove 233 of the mounting tube 23 arranged.

The sliding sleeve 40 has a through hole inside 41 on, with a Lagebegrenzungsrand 42 on the inner boundary wall of one end of the through-hole 41 is trained. The mounting assembly 20 is so displaceable in the through hole 41 the sliding sleeve 40 arranged that the position boundary edge 42 the sliding sleeve 40 for a position limitation of one end of the mounting assembly 20 provides.

The magnetically attractive element 50 is at the other end of the through hole 41 the sliding sleeve 40 arranged and serves the magnetic attraction of the screw 70 , In addition, the magnetically attractive element ensures 50 in the mounting assembly 20 for the position limitation of the other end of the mounting assembly 20 ,

After assembling the above mentioned components, as in 7 shown, the tool head by the end of the sliding sleeve 40 located, magnetically attractive element 50 through into the tool groove 213 introduced and thus able to withstand. The end portion of the tool head 60 partially protrudes from the magnetically attractive element 50 out and thus reaches into the screw 70 one. At the same time the screw 70 from the magnetically attractive element 50 held. Occurs a distance deviation between the screw 70 and the tool head 60 This is achieved by a magnetically attractive element 50 made, magnetically automatic adjustment of the mounting assembly 20 mon finished sliding sleeve 40 balanced. This will ensure that the magnetically attractive element 50 a magnetic attraction to the screw 70 applies.

Becomes a tool head 60A used in different designs [see 8th ], becomes the shorter tool head 60 removed, whereupon the longer tool head 60A through the end of the sliding sleeve 40 located, magnetically attractive element 50 through into the tool groove 213 introduced and thus held in a position. Now the tool head protrudes 60A mainly from the magnetically attractive element 50 out. Due to a too large distance deviation, it is not possible for the magnetically attracting element 50 a magnetically automatic adjustment causes. Therefore, the sliding sleeve needs 40 on the mounting assembly 20 be pulled to increase the length so that the end portion of the tool head 60 partly from the magnetically attractive element 50 protrudes. The end portion of the tool head 60 can then into the screw 70 intervene, taking the screw 70 simultaneously from the magnetically attractive element 50 is held. Occurs a distance deviation between the screw 70 and the tool head 60 This is achieved by a magnetically attractive element 50 made, magnetically automatic adjustment of the mounting assembly 20 mounted sliding sleeve 40 balanced.

This will ensure that the magnetically attractive element 50 a magnetic attraction to the screw 70 applies.

Will the sliding sleeve 40 on the mounting assembly 20 pulled to lengthening so that a maximum length is reached, then cause the Lagebegrenzungsränder 232 . 42 a practical situation limitation. This will avoid the sliding sleeve 40 drops.

Is the mounting assembly 20 Made of magnetically attracting metal, the magnetically attracting element 50 a certain attraction to the assembly assembly 20 apply when the sliding sleeve 40 not yet drawn for renewal. In this way, the sliding sleeve 40 be held magnetically in the position. Therefore, must have a drag on the sliding sleeve 40 be applied to move them to increase the length.

Will the sliding sleeve 40 on the mounting assembly 20 moved, the O-ring 30 be used to create a friction force between the sliding sleeve 40 and the mounting assembly 20 to create. In this way, a certain force must be applied to the sliding sleeve 40 to move. This avoids unwanted movement of the sliding sleeve 40 occurs.

Like from the 9 to 12 see, is an end of the mounting assembly 20 the magnetically attractive element 50 facing, while the other end of the through hole 41 protrudes when the mounting assembly 20 in the through hole 41 the sliding sleeve 40 located. In addition, a blocking element is formed there on the protruding portion.

According to the 9 and 10 is the blocking element at one of the through hole 41 protruding section of the mounting assembly 20 with an engagement groove 234 provided in which a C-ring 235 intervenes. This results in a shortest restriction between the mounting assembly 20 and the sliding sleeve 40 , This will avoid the magnetically attractive element 50 dropped by impact.

In the 11 and 12 a variant of the blocking element is shown. The blocking element is at one of the through hole 41 protruding section of the mounting assembly 20 with a receiving groove 236 provided in which a cushioned detent ball 237 is provided. This results in a shortest restriction between the mounting assembly 20 and the sliding sleeve 40 , This will avoid the magnetically attractive element 50 dropped by impact.

10

tool shank

11

longitudinal bore

12

shell

121

detent portion

122

attack

123

opening

13

tool head

14

screw

20

mounting assembly

21

tool shank

211

tool bar

212

sliding tube

213

tool groove

214

stop ring

22

feather

23

mounting tube

231

stop ring

232

Location boundary edge

233

receiving groove

234

engaging groove

235

C-ring

236

receiving groove

237

detent ball

24

mounting sleeve

30

O-ring

40

sliding sleeve

41

Through Hole

42

Location boundary edge

50

magnetic attractive element

60

tool head

60A

tool head

70

screw

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• US 6520509 [0002]
• US 7096768 [0005]
• - US 7124665 [0005]

Claims (7)

Screw positioning device with the possibility of using two tool heads of different dimensions, comprising a mounting assembly ( 20 ), a sliding sleeve ( 40 ) and a magnetically attracting element ( 50 ), wherein the Schraubenpositioniervorrichtung for the attachment of a tool head and for a magnetic attraction of a screw ( 70 ), adapted to the tool head, and wherein the mounting assembly ( 20 ) a tool shank ( 21 ), a feather ( 22 ), a mounting ear ( 23 ) and a fastening sleeve ( 24 ), wherein the tool shank ( 21 ) at one end with a tool bar ( 211 ) on which a sliding tube ( 212 ) is attachable, as well as at its other end with a tool groove ( 213 ), and wherein a stop ring ( 214 ) outside on the sliding tube ( 212 ) is formed, and wherein the spring ( 22 ) outside on the tool shank ( 21 ) and inside the mounting tube ( 23 ), and wherein the mounting tube ( 23 ) at its one end inside with a stop ring ( 231 ) and on the outside with a position limiting edge ( 232 ), and wherein the tool shank ( 21 ) so together with the spring ( 22 ) inside the mounting tube ( 23 ) is that the spring ( 22 ) stretched between the two stop rings ( 214 . 231 ) are arranged, and wherein the fastening sleeve ( 24 ) in the mounting tube ( 23 ) and thus on the tool shank ( 21 ), and wherein the tool shank ( 21 ) inside the mounting tube ( 23 ), characterized in that - the assembly assembly ( 20 ) outside with a positioning edge ( 232 ) is provided; - that the sliding sleeve ( 40 ) inside a through hole ( 41 ), wherein a position limiting edge ( 42 ) on the inner boundary wall of one end of the through-hole ( 41 ), and wherein the mounting assembly ( 20 ) displaceable in the through hole ( 41 ) of the sliding sleeve ( 40 ), and wherein the position boundary edges ( 42 . 232 ) for the position limitation of the sliding sleeve ( 40 ) or the mounting assembly ( 20 ) provide for the sliding extension; and - that the magnetically attracting element ( 50 ) at the other end of the through-hole ( 41 ) of the sliding sleeve ( 40 ) is arranged. Screw positioning device according to claim 1, characterized in that the mounting assembly ( 20 ) is made of magnetically attracting metal. Screw positioning device according to claim 1, characterized in that the tool shank ( 21 ) is made of magnetically attracting metal. Screw positioning device according to claim 1, characterized in that the mounting assembly ( 20 ) outside with a receiving groove ( 233 ), in which an O-ring ( 30 ) is located. Screw positioning device according to claim 1, characterized in that the mounting assembly ( 20 ) from a magnetically attracting element ( 50 ) opposite end of the through hole ( 41 protrudes), wherein a blocking element is formed on the protruding portion. Schraubenpositioniervorrichtung according to claim 5, characterized in that the blocking element at one of the through hole ( 41 ) protruding section of the mounting assembly ( 20 ) with an engagement groove ( 234 ) into which a C-ring ( 235 ) intervenes. Schraubenpositioniervorrichtung according to claim 5, characterized in that the blocking element at one of the through hole ( 41 ) protruding section of the mounting assembly ( 20 ) with a receiving groove ( 236 ), in which a sprung detent ball ( 237 ) is provided.