WO2009115268A1

WO2009115268A1 - Tool having a feeding motion and/or torque transmitting device

Info

Publication number: WO2009115268A1
Application number: PCT/EP2009/001903
Authority: WO
Inventors: Burhan Dereli
Original assignee: Burhan Dereli
Priority date: 2008-03-20
Filing date: 2009-03-16
Publication date: 2009-09-24
Also published as: EP2265413B1; DE102008048672B3; WO2009115268A4; EP2265413A1; ES2558380T3

Abstract

The invention relates to a tool (1) having a feed motion and/or torque transmitting device having a mounting element (3) for receiving an anchor, threaded bolt, shear connector, or threaded bolt with anchor, said tool being secured in a sleeve (10) by means of the mounting element (3). The feed motion and/or torque transmitting device has a ram (9) that can be adjusted in the axial direction opposite the mounting element (3), and can be brought into contact abruptly against the anchor, threaded bolt, or shear connector.

Description

Tool with a feed motion and / or torque transmission device

The invention relates to a tool with a Vorschubbewegungs- and / or torque-transmitting device with a fastener for receiving a dowel, bolt, compound anchor or bolt with dowel, which is secured by means of the fastener in a sleeve.

There are already known metal expansion anchors in general. In these dowels, a clamping effect is activated, through which the dowel gets stuck in a slot. The clamping effect is created by a cone driven into an expansion sleeve and the sleeve is pushed apart. Metal expansion dowels are more stable and safer than those made of plastic because they can transmit much higher spreading forces on the borehole wall. For fastenings to ceilings, only expansion anchors made of metal are currently permitted in Germany, as there is a risk of "flowing" in plastic (slow plastic deformation due to pull-out forces).

The so-called composite anchors are generally approved by the building inspectorate and therefore also suitable for higher-load connections. Commercially available are two-component reaction resins in a glass ampule, which are destroyed by an anchor rod downhole and mixed by defined rotation of the anchor rod. The resin fills the cavity between the drill hole and anchor rod, penetrates partially into the pores of the surrounding masonry or concrete, hardens depending on time and temperature and glued the anchor rod to the borehole wall. Such anchors work without Spreading or pretensioning and thus avoid when setting the anchor rod a possible cracking in the surrounding building material. In addition to the glass cartridge system, there is also an injection system in which the mortar consisting of resin and hardener is injected with a Auspressgerät in the hole.

The use of these systems must be carried out in accordance with the building inspectorate approvals. There are also composite anchors that may be used in the cracked tension zone of a concrete component, as they have a so-called expansion reserve.

In addition to the composite anchors, there are also various undercut anchors approved by the building inspectorate for concrete. In these, a positive connection is achieved by the borehole is widened at its base by a special drill. By a wedge construction o. Ä. it is achieved that the undercut anchor completely fills this flared borehole. Undercut anchors are mostly used for heavy mounting. They carry much higher loads than expansion anchors, which is partly related to the mentioned positive connection, but also with the fact that they initiate the loads defined further away from the surface. There are also undercut anchors that may be used in the cracked tension zone of a concrete structure.

Furthermore, a device for feed and / or torque transmission on anchor rods of dowels, in particular composite dowels known (DE 100 28 012), which has a setting tool for receiving a conical at the end of the anchor rod outer contour has a conical recess. The conical recess and the conical outer contour have a cone angle between 6 ° to 16 °. With this device can not Mounting system can be absorbed by the conical recess without the operator must manually secure the fastening system.

From DE 196 50 799 C1 (D5) only one nut for receiving or for insertion into a fastener head is known. In this known Schraubvorsatz the nut consists of two jaws, which engage rotationally in a sleeve-like holder. The jaws are displaceable relative to the holder in the axial direction. In one end position, the jaws for inserting a fastener head in the radial direction can be pressed apart. When axial force in the direction of arrow, the jaws are pressed into the holder, whereby the jaws are forcibly pressed against each other due to the acute-angled running surfaces in the radial direction, so that the fastener head used is firmly clamped.

The invention has for its object to secure the fastening system or a bolt with a threaded head in the tool so that the operator without manual securing of the fastening system or the bolt with the tool frontally and thus can act axially on the fastener.

The object is achieved in that the Vorschubbewegungs- and / or torque-transmitting device has a plunger which is adjustable in the axial direction relative to the fastener and abruptly against the dowel, bolts, or composite anchors can be brought to bear, using the feed motion the dowel, bolts, composite anchors or bolts with dowels and / or attached to the bolt head or a screw nut in a corresponding Opening can be brought. This allows an operator without foreign aid with the tool to insert a screw bolt with attached dowel in a hole or drive in and then screw the bolt with the same tool. The plunger or the rod acts as a percussion instrument on the front side or on the upper end of the plug and drives the plug into a hole without this impact forces are transmitted to the socket or the holding system, since both parts are decoupled from each other. If the expansion dowel is driven into the borehole, a nut screwed onto the dowel can also be tightened with the same tool and used to fasten a component to the expansion dowel. For this purpose, the drilling and / or impact tool is switched to "turning".

For this purpose, it is advantageous that the fastener is a holding system having one or more fasteners that may be formed as magnets, resilient parts, clamping parts or as parts falling out of the dowel, bolt, compound anchor or bolt with dowel or on Prevent screw head or screw nut from sticking to the bolt.

Further, it is advantageous that the holding system of the tool consists of the sleeve having an opening, which has a subsequent to the opening guide member and / or a bore in which the plunger is adjustably received against the action of a force. With the help of the holding system, the bolt or a fastening part is clamped in the tool in a simple manner, so that the operator without effort and with very little time can install mounting systems in a wall, especially in ceilings. For this purpose, it is advantageous that in the opening of the sleeve of the holding system for securing the fastener, the clamping parts are provided which can secure the dowel, bolts, composite anchors or bolts with dowels in the opening of the holding system, if the dowel, bolts, shear connectors or bolts pushed into the opening with dowels.

An additional possibility, according to a development of the invention, that the clamping parts consist of one or more spring elements that can clasp the dowel, bolts, compound anchors or bolts with dowels or bolted to the bolt head from one or more pages when the screwed Further, it is advantageous that the plunger of the device for advancing movement and / or torque transmission against the action of a spring is adjustably arranged and abruptly against the dowel, bolts, compound anchors or bolts with dowels to the plant comes, with the screwed screw head is clamped in the sleeve and thereby held.

It is also advantageous that the spring is arranged concentrically on the plunger and rests with its one end against a flange and with its other end against the sleeve in which the plunger is slidably received.

A further advantage is that the rod or the shock has at its end received in the sleeve a flange which can be brought against a stop provided in the sleeve for conditioning. Of particular importance for the present invention is that the holding system consists of the sleeve and an applied sleeve on the sleeve whose inner diameter is slightly larger than the outer diameter of the sleeve, so that in the intermediate space formed between the sleeve and sleeve pinched at least one end of a spring or can be secured and that the socket with the sleeve firmly connected or shrunk as a clamping connection to this.

Further, it is advantageous that the sleeve has on its outer circumference one or more openings through which at least the front end of the spring can extend, if, depending on the size of the clamped by the spring portion of the fastener of the front part of the spring pressed radially outward becomes.

It is also advantageous that the one or more resilient clamping parts or springs and / or the opening part surrounding the head part of the fastening system are adapted to the corresponding head part, which is inserted into the opening. With the help of the positive connection you get a secure fit of the fastener in the holding system. The form-fitting part can be arranged and formed such that it can easily and quickly detach from the holder and be replaced by another form-fitting part for receiving a differently shaped fastening element.

Furthermore, it is advantageous that one end of the holder has locking elements for connection to a receiving chuck of a drilling and / or percussion tool. As a result, the tool even when ceiling mounted by a single person can be operated, the installation costs can be greatly reduced.

It is also advantageous that the tool with a Vorschubbewegungs- and / or torque transmitting device with a fastener for receiving a dowel, bolt, compound anchor or bolt with dowel, which is secured by means of the fastener in a sleeve, wherein the Vorschubbewegungs- and / or torque -

Transmission device having a shock which is independently adjustable in the axial direction relative to the fastener and can be brought abruptly against the dowel, bolts, or composite anchor to plant, using the feed movement of the dowel, bolts, shear connectors or bolts with dowels and / or a bolt can be brought into a corresponding opening with attached nut.

Furthermore, it is advantageous that the plunger is received axially displaceable within a bore formed as a guide of the fastener is of particular importance for the present invention, that

Further advantages and details of the invention are explained in the patent claims and in the description and illustrated in the figures.

Showing: 1 is a sectional view of a device for advancing movement and / or torque transmission of a fastening system such as dowels, bolts, shear connectors or bolts along the line AA of FIG. 2.

Figure 2 is a side view of the device for advancing movement and / or torque transmission of a fastening system.

Fig. 3 is a perspective view of a device for

Feed movement and / or torque transmission of a

Mounting system such as dowels, bolts, compound anchors or

Screw bolt with view into the opening of the holding system;

Fig. 4 is a perspective view of a device for

Feed movement and / or torque transmission of a

Mounting system such as dowels, bolts, compound anchors or

Screw bolt, with view into the opening of the holding system, wherein the front part of the holder is reproduced with spring, which is connected to the holding system;

Fig. 5 front view of the device for advancing movement and / or torque transmission of a fastening system;

Fig. 6 Rear view of the device for advancing movement and / or torque transmission of a fastening system.

Fig. 7 is a second perspective view of the device with dowel and nut. In Fig. 1 and 7, a device, hereinafter referred to as a tool 1, shown for advancing movement and / or torque transmission of a fastening system such as dowels, bolts, shear connectors or bolts.

The fastening system is not shown in the drawing. It may be, for example, a bolt whose head is equipped with a hexagon or hexagon socket. The bolt can also be used without a screw head or nut (Fig.7) with a tool 1 in a not shown in the drawing bore in an upright wall or in a ceiling, as will be explained in more detail below.

A fastening element 3 of the tool 1 consists of a holding system 2 with clamping parts 3 and an opening 6 having a sleeve 10 into which the end of the fastening system or the screw head can be used positively. To the sleeve 10, a guide member 5 connects with a bore in which a holder which is designed as a plunger 9, against the action of a force, here a spring 7, is adjustable.

As is apparent from Fig. 4, can be provided to secure the fastening system clamping parts 3, which secure the fastening system in the holding system 2 when it has been pushed into the opening 6.

The holding system 2 may have one or more fasteners 3, as 3.2 magnets, elastic parts, clamping parts or as parts may be formed, which prevent falling out of the fastening system from the holding system 2.

The clamping parts 3 consist of one or more spring elements which can clasp the fastening system from one or more sides when the fastening system has been inserted into the opening of the device for advancing movement and / or torque transmission.

The tool 1 or the sleeve 10 is arranged on the plunger 9 against the action of the spring 7 adjustable and thus belongs to the tool first

The spring 7 is arranged concentrically on the holder designed as a ram 9 and sets with its one end against a arranged on the plunger 9 flange 8 and with its other end against the axially extending end of the sleeve 10, in which the plunger 9 is slidably received.

The plunger 9 has at its end, which is received in the sleeve 10, a flange 11 which can be brought against a provided in the sleeve 10 stop 12 for conditioning. The stop 12 is formed by the radially extending recess in the sleeve 10, against which the end face or radial Andrehung of the flange 11 can be brought to bear when the plunger 9 is not actuated, that is in its rest position. The larger diameter end of the plunger 9 has a guide element 11.1, which is received by the sleeve 10. The flange 11 is thus formed by the radial rotation and is in inactive position of the plunger 9 against the provided in the sleeve 10 radial stop 12 at. The guide element 11.1 is by means of the plunger 9 in a Bore 10.1 of the sleeve 10 is mounted substantially displaceable, as well as a part of the weight of the plunger 9 is received and guided by the guide member 5 and / or the bore of the sleeve 10.

The holding system 2 consists of the sleeve 10 and an applied on the sleeve 10 bushing 4, whose inner diameter is slightly larger than the outer diameter of the sleeve 10 so that in the intermediate space formed between the sleeve 10 and bushing 4 an end 3.1 at least one spring 3 clamped or . can be inserted and thus secured. The bushing 4 is firmly connected to the sleeve 10 or shrunk onto it as a clamping connection. In the embodiment, three springs 3 are arranged. As is apparent from the sectional view of FIG. 1, the bush 4 is pushed onto the sleeve 10 and fastened there. In the formed between the sleeve 10 and the socket 4 very small gap the ends of the springs are inserted or pressed.

Thus, the clamping part 3 and the spring can spring radially outward depending on the head size of the bolt when the head of the bolt is pushed into the opening 6, the sleeve 10 according to the width of the springs 3 elongated openings 13 and slots on, in where the end of the springs can move back and forth.

The spring-elastic clamping parts or springs 3 and / or the head part of the fastening system positively surrounding the opening 6 are adapted to the corresponding head part which is inserted into the opening 6.

The other end of the plunger 9 has locking elements 14 for connection to a receiving chuck of a drilling and / or impact tool. To this Way, the fastener or the bolt can be taken together with the anchor in a pre-drilled wall opening and then screw the bolt with the drilling and / or impact tool. Is z. B. on the bolt a screw head can be screwed with the help of the drilling and / or impact tool of the bolts in the dowel. It is also possible if the expansion anchor has at its one end a threaded part on which a nut is screwed, that the screwed on the expansion dowel nut are received and held in the holding system 2 and then the expansion dowel with the aid of the operating as a ram tappet 9, in particular by means of its guide element 11.1, which acts as a striking tool, is driven into a borehole. As a result, the plunger 9 is struck by its axial movement against the upper end face of the expansion dowel, without actuating the nut. The plunger performs in the sleeve 10 relative to the nut from a relative movement. As a result, no axial forces are introduced to the nut. If the expansion dowel is driven into the borehole, the nut can also be turned with the same tool and used to fasten a component to the expansion dowel. For this purpose, the drilling and / or impact tool is switched to "turning".

Thus, in a ceiling mounting of the screw to be used in a hole with nut attached can not fall out of the opening 6 of the tool 1, the holding system 2 has one or more, according to the embodiment three, designed as springs clamping parts 3. The clamping member 3 may be against the action of a force or a compression spring, a ball member which is pressed radially radially outwardly during insertion of the screw head and frictionally against the outside of the Schaubkopfs or the part applies, which has been inserted into the opening 6 of the holding system 2.

LIST OF REFERENCE NUMBERS

1 tool

2 holding system

3 fastening element clamping part, spring, magnet, 3.1 fixing element spring-elastic part,

3.1 end

3.2 magnet

4 socket

5 guide part, bore

6 opening

7 spring

8 flange

9 bracket, plunger

10 sleeve 10.1 bore

11 flange

11.1 guide element

12 stop

13 opening

14 locking element

Mounting system = bolt

Claims

claims

1. tool (1) with a Vorschubbewegungs- and / or torque transmission device with a fastening element (3) for receiving a dowel, bolt, compound anchor or bolt with dowel secured by means of the fastener (3) in a sleeve (10) is, characterized in that the Vorschubbewegungs- and / or torque-transmitting device comprises a plunger (9) which is adjustable in the axial direction relative to the fastening element (3) and abruptly against the dowel, bolts, or composite anchor can be brought into abutment.

1. Apparatus according to claim 1, characterized in that the fastening element (3) is a holding system (2) having one or more fastening parts, which may be formed as magnets (3.2), resilient parts, clamping parts or as parts, the one Prevent the dowel, bolt, composite anchor or bolt from falling out with the dowel or the screw head or screw nut from the retaining system (2).

2. Apparatus according to claim 1, characterized in that the holding system (2) of the tool (1) consists of an opening (6) having sleeve (10), which adjoins the opening (6) guide member (5) and / or has a bore (10.1), in the plunger (9) is adjustably received against the action of a restoring force.

3. A device according to claim 1, characterized in that in the opening (6) of the sleeve (10) of the holding system (2) for securing the fastening element, the clamping parts (3) are provided which the dowel, bolts, shear connectors or bolts with dowels in the opening (6) of the holding system (2) can be secured when the dowel, bolts, compound anchors or bolts with dowel is pushed into the opening.

4. The device according to claim 1 or 2, characterized in that the clamping parts (3) consist of one or more spring elements, which clasp the dowel, bolts, compound anchors or bolts with dowels or bolted to the bolt head of one or more pages can be when the screwed bolt is inserted into the opening (6) of the sleeve.

5. Device according to one of the preceding claims, characterized in that the plunger (9) of the device for advancing movement and / or torque transmission against the action of a spring (7) is adjustably arranged and abruptly against the dowel, bolts, shear connectors or bolts comes with dowels to the plant, wherein the screwed screw head is clamped in the sleeve (10) and thereby held.

6. Device according to one of the preceding claims, characterized in that the spring (7) on the plunger (9) is arranged concentrically and with its one end against a flange (8) and with its other end against the sleeve (10). applies, in which the plunger (9) is slidably received.

7. Device according to one of the preceding claims, characterized in that the rod or the plunger (9) at its in the sleeve (10) received end has a flange (11) provided against a in the sleeve (10) stop (12) can be brought to the plant.

8. Device according to one of the preceding claims, characterized in that the holding system (2) consists of the sleeve (10) and one on the sleeve (10) mounted bushing (4) whose inner diameter is slightly larger than the outer diameter of the sleeve ( 10), so that one end (3.1) of at least one spring (3) can be clamped or secured in the intermediate space formed between sleeve (10) and bushing (4).

9. Device according to one of the preceding claims, characterized in that the bushing (4) with the sleeve (10) fixedly connected or shrunk as a clamping connection to this.

10. Device according to one of the preceding claims, characterized in that the sleeve (10) has on its outer periphery one or more openings (13) through which at least the front end of the spring (3) can extend, if, depending on the size of of the Spring (3) clasped part of the fastener or the screw head, the front part of the spring (3) is pressed radially outward.

11. Device according to one of the preceding claims, characterized in that the one or more resilient clamping parts or springs (3) and / or the head part of the fastening element form-fitting surrounding opening (6) to the corresponding head part which in the opening (6) is pushed, are adjusted.

12. Device according to one of the preceding claims, characterized in that one end of the plunger (9) has locking elements (14) for connection to a receiving chuck of a drilling and / or impact tool.

13. Tool (1) with a Vorschubbewegungs- and / or torque transmission device with a fastening element (3) for receiving a dowel, bolt, compound anchor or bolt with dowel secured by means of the fastener (3) in a sleeve (10) characterized in that the Vorschubbewegungs- and / or torque-transmitting device comprises a plunger (9) which is independently adjustable in the axial direction relative to the fastening element (3) and abruptly against the dowel, bolts, or composite anchor can be brought into abutment wherein with the aid of the feed movement of the dowels, bolts, shear connectors or bolts with dowels and / or a bolt with attached nut can be brought into a corresponding opening.

14. Tool (1) according to any one of the preceding claims in particular according to claim 14, characterized in that the fastening element (3) for receiving a dowel, bolt, compound anchor or bolt with dowel, is designed such that it screwed onto the dowel nut holds or the outer circumference of the anchor clasped and the plunger (9) is decoupled from the movement of the fastener (3).

15. Tool (1) according to any one of the preceding claims in particular according to claim 14, characterized in that the plunger (9) within a bore formed as a guide (5) of the fastening element (3) is received axially displaceable.