EP2726249A1

EP2726249A1 - Polygonal-socket wrench combination tool

Info

Publication number: EP2726249A1
Application number: EP12743062.7A
Authority: EP
Inventors: Philipp Krauser
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-30
Filing date: 2012-06-27
Publication date: 2014-05-07
Anticipated expiration: 2032-06-27
Also published as: EP2726249B1; DE202011050595U1; WO2013000459A1

Abstract

The invention relates to a polygonal-socket wrench combination tool which has a plurality of polygonal-socket wrenches for different bolt sizes, wherein the polygonal-socket wrenches are sockets that can be plugged coaxially onto one another. In order to create a polygonal-socket wrench combination tool for different bolt sizes, which has a compact and simple structure, it is proposed in the context of the invention that the sockets each have two sections which have different polygonal-socket cross sections. Since the sockets can be plugged coaxially onto one another, given a compact structure, at least four different attachment cross sections (for example square cross sections or hexagonal cross sections) are available with two sockets plugged into one another, at least six different attachment cross sections are available with three sockets plugged into one another and at least eight different attachment cross sections are available with four sockets plugged into one another.

Description

DESCRIPTION

Polygonal socket wrench combination tool

The invention relates to an internal polygonal wrench combination tool having a plurality of polygonal socket wrenches for different screw sizes, wherein the polygonal socket wrench are coaxial plugged sleeves.

From DE 10 2010 015 546 AI a polygon socket wrench combination tool is known, which has a plurality of polygon socket wrenches for different screw sizes, the polygon socket wrench are closed at least on one side by a respective bolt element, coaxially stacked sleeves, wherein between two superimposed pin members each have a compression spring is arranged, and wherein the innermost polygon socket wrench a set of selectable polygonal set cross section for placement on a screw head of a smallest operable with the tool screw size, and wherein each of the inner polygon socket wrench continues from a outermost of the polygonal socket wrench extended as the adjacent surrounding it polygon socket wrench and by compressing the on the bolt element of the displacing inner polygon Schra ubenschlüssels adjoining compression spring coaxially inserted into the surrounding polygon socket wrench until it is flush with the free end, on the bolt element has a locking means releasably engaged with a corresponding present on the surrounding polygon socket wrench locking means upon reaching the flush termination comes so that the introduction of at least one inner in at least one surrounding polygon socket wrench provides an increase in the smallest on set cross-section. However, this device has a relatively complex structure.

WO 98/22262 A1 describes telescoping hollow hexagonal elements which can be slid into a hollow body to provide a respective hexagonal element of the desired size. The object of the invention is therefore to provide a polygon socket wrench combination tool for different screw sizes, which is compact and simple.

This object is achieved with an internal polygonal wrench combination tool according to the preamble in that the sleeves each have two sections which have different polygonal cross-sections.

Since the sleeves are coaxial plugged together, at least four, with three nested sleeves at least six and four nested sleeves are at least eight different set cross sections (for example, square or hexagonal cross-sections) available in a compact design with two nested sleeves. The inner polygon wrench combination tool according to the invention is modular expandable as desired. If the sleeves are hollow, the wrench combination tool according to the invention can also be used as an external polygonal wrench combination tool. The combination tool according to the invention thus makes it possible to offer a maximum number of different polygonal cross-sections with a minimum expenditure of material.

A development of the invention is that means for securing the sleeves are provided.

These means for securing the sleeves are used to allow a displacement of the sleeves in the nested state. Optionally, these means may also serve to push the inner sleeve (s) out of the outer sleeve.

In this context, it is advantageous that the sleeves each have a bore transverse to its longitudinal axis, through which the means designed as a bolt for securing the sleeves are pluggable.

The bolt inserted in the bore prevents the sleeves from being displaced relative to each other, and moreover the bolt can be used to push the inner sleeve (s) out of the outer sleeve. Furthermore, it is within the scope of the invention that the means for securing the sleeves comprises a first rod-shaped element, which has mutually parallel bolts arranged at both ends, which are arranged transversely to the longitudinal axis of the first rod-shaped element and a second rod-shaped element which with the bolt is connectable.

This configuration of the means for securing the sleeves makes it possible, on the one hand, to secure the inner polygonal wrench combination tool by one bolt and to fasten it to the other bolt, for example on a key ring. By the two-bolt design, it is also possible to connect two sleeves together by one of the bolts is pushed through the bore of each of the sleeves and then the second rod-shaped element is connected to the two bolts, which allows the longitudinal axes of both sleeves vertically to arrange each other. In this way, the one sleeve can be used as a lever for rotating the other sleeve, which makes it possible to solve even stuck screws with hexagon socket.

In this context, it is advantageous that the second rod-shaped element has at its ends slots for connecting the rod-shaped element with the bolts. These slots can be formed both straight and curved.

Another embodiment of the invention is that the means for securing the sleeves are formed as notches on the outside of the sleeves, in which the tip of a pivotally arranged on the outer sleeve clip is latched.

In this embodiment, the sleeves can be moved relative to each other as long as the tip of the clip does not engage in one of the notches. When the desired position has been reached, i. the desired sleeve in working position, this position is secured by snapping the clip into the notch. The clamp is expediently arranged on the section of the outer sleeve with the smaller cross-section, so that this section also in the region of the clip resting against the section has no larger cross section than the section with the larger cross section of the same sleeve.

A further development of the invention consists in that a substantially hollow cylindrical transport sleeve is provided, into which the coaxially stacked sleeves can be inserted. In the transport sleeve, the stacked sleeves are inserted to protect them during transport.

In this context, it makes sense that the transport sleeve has on its coat at least one hexagonal opening for inserting the largest sleeve contained in the transport sleeve.

In this embodiment, the transport sleeve can also be used as a handle for rotating the sleeves, wherein a high torque can be transmitted to the particular Allen key used. The hexagonal opening (s) can be arranged both in the edge region of the cylindrical jacket of the transport sleeve and also in the center thereof.

An advantageous development of the invention is that the means for securing the sleeves comprise a U-shaped element, one leg of which is pivotally mounted and provided with a latching opening and the other leg has a bolt which is slidable through the bore and the End in the latching opening of the other leg is securable.

This configuration of the means for securing the sleeves makes it possible, on the one hand, to secure the inner polygonal wrench combination tool by the bolt and to fasten it to the U-shaped element, for example on a key ring. The U-shaped element continues to rotate the sleeves.

A further development of the invention consists in that the sleeves have a polygonal passage opening arranged transversely to the longitudinal axis of the sleeves.

In this embodiment, one of the sleeves can be used as a handle for rotating another sleeve. The polygonal through-hole corresponds in shape to the respective polygonal socket, ie if the polygonal socket is a hexagon, which represents the preferred embodiment, the polygonal through hole is also formed as a hexagonal through hole. A further development of the invention is that the polygonal passage opening is formed so that it has on one side the smaller and on the other side the larger cross-section of the next smaller sleeve.

In this embodiment, both the next larger and the next smaller sleeve can be used as a handle for rotating a sleeve. In addition, other sleeves can be used to extend the tool or the handle.

Finally, it is advantageous that at least one of the sleeves is hollow and has different outer polygonal cross-sections.

This makes it possible to use the tool as an external polygon tool.

Embodiments of the invention will be explained in more detail with reference to drawings.

Show it

1 shows the components of a first embodiment of the internal polygonal wrench combination tool in the disassembled state,

2 the attachment of the rod-shaped elements,

3 shows the first embodiment of the internal polygonal wrench combination tool in the assembled state,

Fig. 4

5 shows the first embodiment of the internal polygon wrench combination tool in the application state,

6 shows the components of a second embodiment of the internal polygonal wrench combination tool in the disassembled state, the second embodiment of the internal polygon wrench combination tool in the application state in a perspective and sectional view, the components of a third embodiment of the invention in the disassembled state, the components of the third embodiment of the invention in assembly, the third embodiment of the invention in the assembled state,

a sectional view of the third embodiment of the invention in the assembled state, a fourth embodiment of the invention in the disassembled

Status,

I Ib the fourth embodiment in the assembled state,

Fig. 12a

to 12i, the fourth embodiment in the coupled state, each in

cut representation, in side view and in perspective,

Fig. 13a

until 13d the extension of coupled sleeves,

14 is a sectional view of coupled sleeves,

Fig. 15 is a sectional view of telescoped sleeves according to the

present invention.

As can be seen from FIG. 1, the internal polygonal wrench combination tool according to the invention consists of a plurality of sleeves 1 each having two sections 2 which have different polygonal set cross sections. In the present case, the length of each of the sections 2 is approximately half of the longitudinal extension of each of the sleeves 1, but it is also possible to make one of the sections 2 longer than the other.

The sleeves 1 are coaxial plugged onto each other, wherein in each case the portion 2 of a sleeve 1, which has the larger cross section, the section 2 with the larger cross section of the next smaller sleeve 1 receives. In this way, the sleeves 1 can be pushed together to save space and also be used as an external polygon tool. The smallest sleeve 1 may consist of solid material, while the larger sleeves 1 each have a cavity for receiving the smaller sleeve (s) 1.

The sleeves 1 further comprise means for securing 3, which are formed as a transverse to the longitudinal axis of the bore 4 in each of the sleeves 1, in which a bolt 5 can be inserted, which prevents the unwanted displacement of the coaxially stacked sleeves 1. It can also be provided that - as shown in Fig. 1 - the means for securing 3 of the sleeves 1, a first rod-shaped element 6 having at both ends mutually parallel bolts 5, which are transverse to the longitudinal axis of the first rod-shaped element 6 are arranged and comprise a second rod-shaped element 7, which is connectable to the bolt 5. In the present example, the second rod-shaped element 7 elongated holes 8, in the wide region of the free ends of the bolts 5 are introduced. Subsequently, the second rod-shaped element is displaced relative to the bolts 5, whereby the bolts 5 reach the narrow region of the slots 8 and the two spaced thickenings 9 at the free ends of the bolts 5 fix the bolts 5 on both sides of the second rod-shaped element 7 ,

As shown in Fig. 2, one of the bolts 5 of the first rod-shaped element 6 extends through the holes 4 of the sleeves 1 and thus prevents their displacement relative to each other. The other pin 5 is disposed below the end of the sleeve 1. Both bolts 5 engage in the slots 8 of the second rod-shaped element 7.

This results in the assembled state shown in Fig. 3, in which the sleeves 1 coaxially stuck on each other and are secured by the means for securing 3 to 8. The internal polygonal wrench combination tool can be attached via the bolt 5 at its one end, for example, on a key ring.

As can be seen from Figs. 4 and 5, the means for securing 3 to 8 also allow the connection of two sleeves 1 with each other, each extending one of the bolts 5 through the bore 4 of the sleeves 1 and the rod-shaped elements 6 and 7 the connect two sleeves 1 with each other. Here, as shown, one of the sleeves 1 can be arranged transversely to the longitudinal axis of the respective other sleeve 1, and depending on the length of the rod-shaped elements 6, 7 L-shaped with one end at the free end abut (Fig. 4) or T. be arranged centrally above the free end of the same (Fig. 5). In both cases, this results in a lever effect, which makes it possible to apply a large torque to the sleeves 1.

Fig. 6 shows the components of the second embodiment of the internal polygon wrench combination tool in the disassembled state. The internal polygonal wrench combination tool according to the invention also consists of a plurality of sleeves 1, each having two sections 2, which have different polygonal Aufset cross-sections. The sleeves 1 are coaxial plugged onto each other, wherein in each case the portion 2 of a sleeve 1, which has the larger cross section, the section 2 with the larger cross section of the next smaller sleeve 1 receives. In this way, the sleeves 1 can be pushed together to save space and also be used as an external polygon tool due to their hollow design. The smallest sleeve 1 may consist of solid material, while the larger sleeves 1 each have a cavity for receiving the smaller sleeve (s) 1.

The sleeves 1 further comprise means for securing 3, which are formed as notches 10 on the portion 2 of each of the sleeves 1, which has the smaller cross-section, and as a clip 12, the tip of which can engage in the notches 10. The notches 10 of the outer sleeves 1 is continuous, the inner sleeve 1 may be formed only as blind holes. FIG. 6 furthermore shows a substantially hollow cylindrical transport sleeve 13, which has on its jacket and on its closed side at least one hexagonal opening 14 for inserting the largest sleeve 1 contained in the transport sleeve 13 (and the smaller sleeves 1 arranged therein). having. In the open side of the transport sleeve 13, the sleeves 1 are kept protected during transport.

Figs. 7 and 8 show the second embodiment of the polygon socket wrench combination tool in the application state. Here, the largest of the sleeves 1 is inserted into the opening 14 of the transport sleeve 13, so that the transport sleeve 13 serves as a handle. It can be seen that at the portion 2 of the outer sleeve 1, which has the smaller cross section, the clamp 12 is pivotally arranged, so that when applied to the section 2 clamp 12, the cross section of this section 2 is not greater than the cross section of Section 2 with the larger cross section.

From Fig. 8 it can be seen that the tip 11 of the clip 12 engages through the notch of the two outer sleeves 1 into the notch 10 of the inner sleeve 1 and thereby secures the sleeves 1 relative to each other. To change the sleeve 1, the clamp 12 is pivoted about its axis, so that the tip 11 is no longer in engagement with the notches 10. As can be seen from FIGS. 9a to 9c, the third embodiment of the internal polygonal wrench combination tool according to the invention consists of a plurality of sleeves 1, each having two sections 2, which have different polygonal set cross sections. It is possible that the length of each of the sections 2 is about half of the longitudinal extension of each of the sleeves 1 and that one of the sections 2 is made longer than the other.

The sleeves 1 further comprise means for securing, which are formed as a transversely arranged to the longitudinal axis cylindrical bore 4 in each of the sleeves 1, in which a bolt 5 can be inserted, which prevents the unwanted displacement of the coaxially stacked sleeves 1. It can also be provided that - as shown in Fig. 9a to 9c - the means for securing the sleeves 1 are formed as a U-shaped element 15, one leg 17a is pivotable and is provided with a latching opening 16 and its other leg 17b has a pin 5 which is slidable through the bore 4 and the end of which can be secured in the latching opening 16 of the other leg 17a.

As shown in Fig. 9c, the bolt 5 of the U-shaped element 15 extends through the holes 4 of the sleeves 1 and thus prevents their displacement relative to each other. The U-shaped element 15, which may also have a different shape, is non-positively connected to the sleeve 1 and serves both for rotating the sleeves 1 in the operation of the combination tool as well as for transporting or suspending the same.

As can be seen from FIGS. 10a to 10f, sleeves 1 of very different types can be pushed into one another. At the point at which the bolt 5 extends through the sleeves 1, always acts in the illustrated embodiments, a solid profile. FIGS. 11a and 11b show a fourth embodiment of the invention, in which each of the sleeves 1 (with the exception of the smallest sleeve 1) has a polygonal (here: hexagonal) through-opening 18 arranged transversely to the longitudinal axis. This polygonal through hole 18 is formed so that it has the smaller and on the other side the larger cross-section of the next smaller sleeve 1 on one side.

As can be seen from FIGS. 12a to 12i, it is also possible to connect two sleeves 1 to one another, wherein one of the sleeves 1 is arranged transversely to the longitudinal axis of the respective other sleeve 1 and extends either in a T-shape through the polygonal through opening 18 (FIG 12a to 12c and Figs. 12g to 12i) or T-shaped centrally above the free end thereof (Figures 12d to 12f). In both cases, this results in a lever effect, which makes it possible to apply a large torque to the sleeves 1. Each of the sleeves 1 can be coupled with both a larger sleeve 1 and a smaller sleeve 1 (if any).

Figs. 13a to 13d show how coupled sleeves 1 can be extended by coupling further sleeves 1, so that both the sleeve 1, which serves as a tool, and the sleeve 1, which serves as a handle, can be lengthened. In this way, the range and the lever arm is significantly increased.

As can be seen from FIG. 14, in the case of a sleeve 1, which is inserted transversely into the hexagonal through-opening 18 of another sleeve 1, a positive-locking connection is provided for all sizes and variants in the contact region, which enables optimum force transmission.

From Fig. 15 it can be seen how in practice the discrepancy between inner polygonal and outer polygon sizes can be overcome. DIN 912 (ISO 4762), for example, provides other radii for hex keys than DIN 931 (ISO 4014) for external hex keys. In Fig. 15 are the respective hexagon socket dimensions with the millimeter and the addition I, the external hex dimensions with the millimeter and the addition A provided. It then arise in the end of the ineinanderge inserted sleeves 1, the free areas that do not bother further.

It can be seen that a multiplicity of cross sections with a relatively small number of sleeves can be realized if the tool is used as inner and outer polygon. If the smallest sleeve 1 is formed as a solid profile, one obtains four cross-sectioned sleeves 14 (4n-2, where n is the number of sleeves 1). Is even the smallest sleeve 1 formed as a hollow profile (and thus this can also act as external polygon), one reaches four sleeves 1 16 (4n) different cross-sections.

The combination tool according to the invention can also be used for other connecting elements, for example hexagonal TR screws (safety hex with a pin in the middle) or Pentalob screws, as well as for conventional polygonal connection.

Claims

An inner polygonal wrench combination tool having a plurality of internal polygon wrenches for different screw sizes, wherein the polygon socket wrench coaxial with each other pluggable sleeves

(I), characterized in that the sleeves (1) each have two sections (2) which have different polygonal cross-sections.

2. Inner polygonal wrench combination tool according to claim 1, characterized in that means (3) for securing the sleeves (1) are provided.

3. polygonal socket wrench combination tool according to claim 2, characterized in that the sleeves (1) each have a bore (4) transversely to its longitudinal axis through which the bolt (5) formed means (3) for securing the sleeves ( 1) are pluggable.

4. polygonal socket wrench combination tool according to claim 2, characterized in that the means (3) for securing the sleeves (1) comprises a first rod-shaped element (6) having at both ends mutually parallel bolts (5) transversely are arranged to the longitudinal axis of the first rod-shaped element (6) and a second rod-shaped element (7), which is connectable to the bolt (5).

5. polygon socket wrench combination tool according to claim 4, characterized in that the second rod-shaped element (7) at its ends elongated holes (8) for connecting the rod-shaped element (7) with the bolt (5).

Inner polygon wrench combination tool according to claim 2, characterized in that the means (3) for securing the sleeves (1) as notches (10) on the outside of the sleeves (1) are formed, in which the tip

(II) a on the outer sleeve (1) pivotally mounted clamp (12) can be latched.

7. inner polygonal wrench combination tool according to one of claims 1 to 6, characterized in that a substantially hollow cylindrical transport sleeve (13) is provided, in which the coaxially stuck on each other sleeves (1) are inserted.

8. inner polygonal wrench combination tool according to claim 7, characterized in that the transport sleeve (13) on its coat at least one hexagonal opening (14) for insertion of the largest in the transport sleeve (13) contained sleeve (1).

9. polygonal socket wrench combination tool according to claim 2, characterized in that the means (3) for securing the sleeves (1) comprise a U-shaped element (15), one leg (17 a) is pivotable and with a Einrastöffnung (16) is provided and the other leg (17b) has a bolt (5) which is pushed through the bore (4) and whose end in the latching opening (16) of the other leg (17a) is securable.

10. Inner polygonal wrench combination tool according to claim 1, characterized in that the sleeves (1) have a transversely to the longitudinal axis of the sleeves (1) arranged polygonal passage opening (18).

11. Inner polygonal wrench combination tool according to claim 10, characterized in that the polygonal through hole (18) is formed so that it has on one side the smaller and on the other side the larger cross-section of the next smaller sleeve (1).

12. Inner polygonal wrench combination tool according to one of claims 1 to 11, characterized in that at least one of the sleeves (1) is hollow and has different outer polygonal cross-sections.