DE8214632U1 - Device for fastening and connecting objects of any kind - Google Patents

Description

· '■ "Device for fastening and connecting -'<■'■ of objects of any kind"

The invention relates to a device for fastening and connecting objects of any type, consisting from a slotted cap screw and a screwdriver, the blade of which can be inserted into the slot on the face of the screw.

Such devices are well known from practice.

When using such devices, the problem often arises that in particular with automatic Hand tools than screwdrivers, the operator does not properly use the blade of the screwdriver into the slot of the screw, but already relative when the screwdriver blade is off-center Activate the screwdriver for the slot in the screw.

This allows the screwdriver blade to come out of the Slide out the slot of the screw, which delays the operation.

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In addition, this can damage the screw slot that the screw for further Makes editing unusable.

Proceeding from this, the invention is based on the object of creating a device of the type described at the beginning, which ensures that the screwdriver blade is exactly centered relative to the slot of the screw is arranged when the screwdriver is put into action manually or automatically. In addition, an insertion aid is intended to ensure that the screwdriver blade is properly inserted into the slot of the Screw can be created.

To solve the problem, the invention proposes that the Slit of the slotted head slot in the middle an extension and the blade of the associated screwdriver at least one end face in the middle of the extension of the contactor has approximately form-fitting usable thickening.

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^D uiird ensured urch Üite arrangement of a central extension in the slot and a corresponding AEST Schlitzkcpfschraube Verdicküng wittig to the blade of the associated screw driver, that the screwdriver can asrden only be used with its blade in the slot when exactly the central position with respect to the slit of the Screw is reached. This ensures that force is applied evenly to the edges of the slot, so that damage to the screw slot by incorrectly inserting the screwdriver blade is largely excluded. This also makes the fastening capacity is increased as _t sliding out of the screwdriver blade in the slot during the screwing screws at least practically excluded in the radial direction.

"To function properly is not It is imperative that the extension and the thickening have the same space farms. However, it is advantageous that the extension and the Thickening are designed to conform.

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Therefore it is to avoid double fits advantageous if the enlargement and the thickening are cylindrical.

Compared to an otherwise also possible polygonal formation of thickening and enlargement, the cylindrical shape with circular cross-sections the advantage that there is a double fit between the screwdriver blade and slot on the one hand and thickening and enlargement on the other hand are completely excluded.

In order to facilitate the introduction and finding of the widening of the slot, it is advantageous that the Extension is conical.

The conical enlargement makes it easier for the operator to find the enlargement and the introduction of the thickening is considerably facilitated, whereas in the screw position one is largely exact adjustment is ensured.

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A particularly advantageous and helpful further training is that the - enlargement larger diameter and greater depth than the Schlitzuieite respectively. -depth corresponds to has tmd tte & the thickening axially opposite, ^ ,, the screwdriver blade protrudes, the protrusion of the protrusion being equal to the bezu. less than xrie Tisfe dsr suppression gsrossssn from the base of the Slot to the bottom of the recess.

This creates the thickening axially opposite the blade of the screwdriver protrudes, it is ensured that it is particularly easy for the operator to find the thickening.

To do this, the screwdriver blade is attached to the The thickening is guided towards the slot with the widening of the screw and the thickening almost slides independently in the extension, so that the right position is found.

It is also advantageous for the easy location of the enlargement that the thickening is conical at the end is chamfered.

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An embodiment of the invention is shown in the drawing and 'will be described in more detail below described «" · · ■ · ■

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^F ig. 1 shows the device in view, partially broken away;

2 shows a ^{view of the device rotated by 9D D} , also partially broken away.

The device for fastening and connecting objects consists of a slotted head screw 1 and a screwdriver 2, the blade 3 in the

Slot h of the screw 1 can be inserted appropriately. The slot 4 of the slotted head screw 1 points in the middle

_m an extension 5, while the blade 3 of the

Corresponding screwdriver 2 on the front side in the center one in the extension 5 of the slot it approximately form-fitting insertable thickening 6 carries.

In the exemplary embodiment, the blade 3 is connected to the drive shaft of an automatic screwdriver, it goes without saying that the blade can also be used in conjunction with a normal hand-operated screwdriver is sensible and appropriate.

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In the exemplary embodiment, the thickening 6 is cylindrical formed, wherein it has circular cross-sections over its axial extent.

The extension 5 is demgegerifaer slightly conical, what for finding the extension 5 and that Introducing the thickening 6 is advantageous. In addition, the thickening 6 has a one end conical chamfer 7, which also serves as an insertion aid.

The extension 5 has a considerably larger diameter and considerably greater depth than the slot width respectively -depth equals to.

^T he thickening 6 projects axially over the blade 3 of the screwdriver 2 addition, wherein the overhang of the projection is approximately equal to the depth of the extension 5 as measured from the base of the slot h to the bottom of the recess. 5

All new individual and combination features disclosed in the description and / or drawing are identified as considered essential to the invention.

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Claims (1)

· 'PATENTANWALT i'"ί'II'": ¹ : ":. · ' DIPL.-ING. JOHANNES PÄPPROTH " Ladenscheid · Oenekinger Weg 7 · © (02351) 20655 Patent attorney Dip1.-Ing. Papprolh 5880 LOdenachrid Oenekinger Wag 7 My «AMan no. please give UNR: 10 66 15 Your reference: Date: 1B. May 19B2 Sachs- Note: SauerlSndiache screw factory ülaldheimstrasse 25-27 5BB3 Kisrsps 1 "Device for fastening and connecting objects of any kind " |! s protection claims: 1. Device 2 for fastening and connecting objects of any kind, consisting of a slotted head screw and a screwdriver, its blade can be inserted into the front slot of the screw, characterized in that the slot (O der Slotted head screw (1) in the middle an extension (5) and the blade (3) of the associated screwdriver (2) at the front, in the center, a slot that can be inserted at least approximately with a form fit into the widening (5) of the slot (O) Has thickening (6). Postal checking account: Dortmund 25334-460 Bank account: Commerzbank A.G. Lüdenscheld (BLZ 45840026) No. 6234512 ι ,, J ,, ,, ■ · Uli I ₁ I '* ···! »It it Z. Device according to claim 1, characterized in that that the extension (5) and the thickening (6) conform are trained. 3. Apparatus according to claim 1 or 2, characterized in that the extension (5) and the thickening (6) are cylindrical. k. Device according to one of Claims 1 to 3, characterized in that the enlargement (5) is conical. 5. Device according to one of claims 1 to it, characterized characterized in that the extension (5) has a larger diameter and greater depth ale the Schitz size BEZW. -depth and that the thickening (6) protrudes axially with respect to the blade (3) of the screwdriver (2), the overhang of the projection equal to the BEZW. less as the depth of the extension (5) measured from the base of the slot U) to the bottom of the recess (5) is • ti .Ii • I I I I • I Il III 6. Uorrichtung according to any one of claims 1 to 5, characterized characterized in that the thickening (G) is chamfered conically at the end.