Torque wrench adapter

Abstract

The invention relates to a torque wrench adapter (10) for attaching or coupling an open-end wrench insert to a torque wrench, having a first portion (13) for attaching the torque wrench adapter (10) to the open-end wrench insert and having a second portion (14) for attaching the torque wrench adapter (10) to the torque wrench, the first part (13) and the second part (14) are connected to each other in an articulated manner via a joint (15) such that the first part and the second part are displaceable relative to each other about a pivot axis (16) of the joint (15).

Description

[0001] The invention relates to a torque wrench adapter. Furthermore, the invention relates to a device comprising a torque wrench adapter, an insert open end wrench and a torque wrench.

[0002] Torque wrenches and plug-in open-end wrenches that can be coupled to the torque wrenches are well known from practice.Thus, the plug-in open-end wrench can be inserted into the recess of the torque wrench via the protrusion, in this way connecting the plug-in open-end wrench to the torque wrench.

[0003] From practice, numerous applications are known in which difficult-to-reach screw connections must be manipulated with a torque wrench or with an insert open-end wrench inserted into the torque wrench. Thus, on a ship's engine, screw connections must be manipulated with a torque wrench or with an insert open-end wrench connected to the torque wrench, which can only be reached with a conventional torque wrench after a preliminary disassembly of the fuel line until the screw connection can be firmly manipulated with the conventional torque wrench.

[0004] Starting from this, the object of the present invention is to provide a torque wrench adapter.

[0005] This object is achieved by a torque wrench adapter according to claim 1 .

[0006] The torque wrench adapter according to the invention is used to connect an insert open-end wrench to a torque wrench. The torque wrench adapter comprises a first part and a second part, the first part being used to connect the torque wrench adapter to the insert open-end wrench and the second part being used to connect the torque wrench adapter to the torque wrench, wherein the first part and the second part are connected to each other via a joint so that the first part and the second part can move relative to each other about a pivot axis of the joint.

[0007] With the invention proposed here, a torque wrench adapter is proposed for the first time, which can be placed between an inserted open-end wrench and a torque wrench and which allows a relative displacement about the pivot axis of the joint between the inserted open-end wrench and the torque wrench. In this way, screw connections that are particularly difficult to reach can also be securely manipulated or operated, in particular even without previously disassembling components that would otherwise interfere.

[0008] According to an advantageous further development, the first part comprises a body which comprises a recess for an inserted open-end wrench at a first end and which is connected to the second part in an articulated manner via a joint at a second end. The second part comprises a body which comprises a projection for a torque wrench at a first end and which is connected to the first part in an articulated manner via a joint at a second end. The joint is formed between the second end of the first part and the second end of the second part. Such a torque wrench adapter allows, on the one hand, easy attachment of an inserted open-end wrench to the torque wrench adapter and, on the other hand, easy attachment of a torque wrench to the torque wrench adapter.

[0009] According to an advantageous further development, leg-shaped projections positioned opposite one another are formed at the second end of the first part, the second end of the second part being positioned between these leg-shaped projections, wherein the pivot axis of the joint extends through the two legs of the second end of the first part and through the second end of the second part arranged between the two legs. The pivot axis of the joint preferably extends perpendicularly to the second end of the second part arranged between the legs. Via this means, the force or moment to be applied via the torque wrench can be reliably transmitted to the plug-in open-end wrench, i.e. by acting on the leg-shaped projections of the first part of the torque wrench adapter according to the invention.

[0010] In claim 9 a device is defined comprising a torque wrench adapter, an insert open end wrench and a torque wrench.

[0011] Preferred further developments of the invention are obtained from the dependent claims and the following description. Exemplary embodiments of the invention are explained in more detail by means of the drawings but are not limited to said drawings. In the drawings: Figure 1 : Perspective view of a torque wrench adapter; Figure 2 : Figure 1 A plan view of a torque wrench adapter; Figure 3 : Figure 1 and Figure 2 A side view of a torque wrench adapter; and Figure 4 : Figures 1 to 3 The torque wrench adapter together with the insert open end wrench and torque wrench.

[0012] The invention relates to a torque wrench adapter and to a device comprising a torque wrench adapter, an insert open-end wrench and a torque wrench.

[0013] Figures 1 to 3 Different views of a torque wrench adapter 10 according to the invention are shown. Figure 4A device is shown, comprising Figures 1 to 3 A torque wrench adapter 10 , an insert-type open-end wrench 11 connected to the torque wrench adapter 10 , and a torque wrench 12 similarly connected to the torque wrench adapter 10 .

[0014] The torque wrench adapter 10 is used to attach an insert open end wrench 11 to a torque wrench 12 by means of an intermediate arrangement of the torque wrench adapter 10, which comprises parts connected to each other in an articulated manner, namely a first part 13 and a second part 14, which are connected to each other in an articulated manner.

[0015] The first part 13 serves to attach the torque wrench adapter 10 to an insert open-end wrench 11, whereas the second part 14 of the torque wrench adapter 10 serves to attach the torque wrench adapter 10 to a torque wrench 12. The first part 13 and the second part 14 are connected to each other in an articulated manner via a joint 15, i.e. such that the first part and the second part are displaceable relative to each other about a pivot axis 16 of the joint 15, i.e. in a hinged manner.

[0016] The first part 13 of the torque wrench adapter 10 comprises a body 17, wherein the body 17 comprises a recess 19 for inserting the open-end wrench 11 at a first end 18. At a second end 20 of the first part 13, the first part is connected to the second part 14 of the torque wrench adapter 10 via a joint 15 in an articulated manner.

[0017] The second part 14 of the torque wrench adapter 10 likewise comprises a body 21 which comprises a projection 23 for a torque wrench at a first end 22, wherein via this projection 23 the torque wrench adapter 10 can be coupled to the torque wrench 12. At the second end 24, the second part 14 of the torque wrench adapter 10 is connected in an articulated manner, i.e. via a joint 15, to the second end 20 of the first part 13. Thus, the joint 15 is formed between the two second ends 20, 24 of the two parts 13, 14 of the torque wrench adapter 10, which are adjacent to each other and are located opposite each other.

[0018] At the second end 20 of the first part 13 of the torque wrench adapter 10, leg-shaped protrusions 25 are formed which are positioned opposite to each other, between which the second end 24 or a protrusion 26 formed at the second end 24 of the second part 14 of the torque wrench adapter 10 is positioned. The two legs 25 of the second end 20 of the first part 13 which are positioned opposite to each other define a recess 27 into which the protrusion 26 formed at the second end 24 of the second part 14 of the torque wrench adapter 10 engages.

[0019] The two parts 13, 14 of the torque wrench adapter 10 are connected to each other in an articulated manner, hinge-like, via the joint 15, via which the pivot axis 16 of the joint 15 extends through the two legs 25 of the second end 20 of the first part 13 and through the projection 26 formed on the second end 24 of the second part 14, which projection is arranged between the two legs 25. Here, this pivot axis 16 of the joint 15 extends perpendicularly to the two legs 25 at the second end 20 of the first part 13 and perpendicularly to the projection 26 formed at the second end 24 of the second part 23. The pivot axis 16 of the joint 15 extends perpendicularly to the longitudinal direction 34 of the two parts 13, 14 of the torque wrench adapter 10.

[0020] As from Figure 1 and Figure 2 As best seen, an engagement recess 28 that interacts with an engagement element of an inserted open-end wrench 11, which is not shown, is formed on the first part 13 of the torque wrench adapter 10. In particular, when the inserted open-end wrench 11 is inserted into the recess 19 in the first part 13 of the torque wrench adapter 10 via a corresponding protrusion, the engagement element of the open-end wrench 11 engages in the engagement recess 28 at the first part 13 of the torque wrench adapter 10, so as to thereby detachably fix the inserted open-end wrench 11 in place on the torque wrench adapter 10.

[0021] On the second part 14 of the torque wrench adapter 10, i.e. in the region of the projection 23 formed at the first end 22 of the second part, an engagement element 29 is formed, which interacts with a corresponding engagement recess in the torque wrench 12, i.e. in particular when the torque wrench adapter 10 is inserted into the corresponding recess in the torque wrench adapter 12 via the projection 23 at the first end 22 of the second part 14. In this case, the engagement element 29 then engages into the corresponding engagement recess of the torque wrench 12. The engagement element 29 is a spring-actuated ball. In order to disconnect the connection between the torque wrench adapter 10 and the torque wrench 12, the engagement element 29 (i.e. the ball of the engagement element 29) only has to overcome the spring force of the spring element acting on the ball and move downwards and out of the corresponding engagement recess in the torque wrench 12, so that the torque wrench adapter 10 can then be disconnected from the torque wrench 12.

[0022] Due to the fact that the torque wrench adapter 10 comprises a hinge-like joint 15, Figure 4 The inserted open-end wrench 11 in the device can be displaced in its orientation relative to the torque wrench 10 with a single degree of freedom defined by the pivot axis 16 of the joint 15, so that by Figure 4 The device also allows for manipulation of hard-to-reach screw connections.

[0023] When using Figure 4 When tightening or unscrewing a screw connection by means of a torque wrench 12, a force or a torque is applied to the handle 30 of the torque wrench 12 in the direction of the arrow 31. This force or this torque 31 itself acts on the leg 25 of the first part 13 of the torque wrench adapter 10 and can thus be transmitted from the second part 14 of the torque wrench adapter 10 to the first part 13 of the torque wrench adapter 10 and thus finally to the inserted open-end wrench 11, so as to provide a torque 32 on the inserted open-end wrench. Figure 4 The effect of a torque applied to the handle 31 on the legs 25 of the first part 13 of the torque wrench adapter 10 is visualized in FIG. 1 by arrows 33 .

[0024] The invention therefore proposes a torque wrench adapter 10 which can be connected between an insert open-end wrench 11 and a torque wrench 12 in order to thereby allow a hinge-like or articulated displacement of the insert open-end wrench 11 relative to the torque wrench 12. In this way, even difficult-to-reach screw connections can be easily and securely manipulated, i.e. so that a torque for tightening or unscrewing a screw connection can be reliably applied to the screw connection, i.e. without previously disassembling such a component which restricts the accessibility of the screw connection to be manipulated.

[0025] Reference numerals list 10 Torque wrench adapter 11 Insert open end wrench 12 Torque wrench Part 13 14 parts 15 Connectors 16 Pivot axis 17 Main Body 18 end 19 recesses 20 end 21 Main Body 22 end 23 Protrusion 24 end 25 Legs 26 protrusion 27 concavity 28 engagement recess 29Joint elements 30 handles 31Force / Torque 32Force / Torque 33 force / torque.

Claims

1. A torque wrench adapter (10) for attaching or coupling an insert-type open-end wrench to a torque wrench, the torque wrench adapter having a first portion (13) for attaching the torque wrench adapter to the insert-type open-end wrench and having a second portion (14) for attaching the torque wrench adapter to the torque wrench, wherein: The first part (13) and the second part (14) are connected to each other in an articulated manner via a joint (15) so that the first part and the second part are displaceable relative to each other about a pivot axis (16) of the joint (15), wherein the first part (13) comprises an engagement recess (28) which is arranged as a through hole on the outer surface of the first part (13) and interacts with an engagement element of the plug-in open-end wrench, wherein the first part (13) is in the shape of a cube and the first part (13) is displaceable relative to each other about a pivot axis (16) of the joint (15). A first length in a longitudinal direction (34) perpendicular to the pivot axis (16) is not significantly greater than a second length of the first portion (13) in a direction parallel to the pivot axis (16), and the first length of the first portion (13) is not significantly greater than a diameter of a screw connection to be operated, wherein the engagement element of the insert open-end wrench engages in an engagement recess (28) at the first portion (13) of the torque wrench adapter (10) in order to detachably fix the insert open-end wrench in place on the torque wrench adapter (10).

2. The torque wrench adapter according to claim 1, characterized in that: The first part (13) comprises a body (17) which comprises a recess (19) at a first end (18) for inserting a portion of an open-end spanner and is connected in an articulated manner to the second part (14) at a second end (20) via the joint (15).

3. The torque wrench adapter according to claim 1 or 2, characterized in that: The second part (14) comprises a body (21) which comprises a projection (23) at a first end (22) which interacts with a torque wrench and is connected to the first part (13) in an articulated manner at a second end (24) via the joint (15).

4. The torque wrench adapter according to claims 2 and 3, characterized in that The joint (15) is formed between the second end (20) of the first portion (13) and the second end (24) of the second portion (14).

5. The torque wrench adapter according to claim 4, characterized in that: Leg-shaped protrusions (25) positioned opposite to each other are formed on the second end (20) of the first part (13), and the second end (24) of the second part (14) is positioned between the leg-shaped protrusions, wherein the pivot axis (16) of the joint (15) extends through the two legs (25) of the second end (20) of the first part (13) and through the second end (24) of the second part (14) positioned between the two legs.

6. The torque wrench adapter according to claim 5, characterized in that: The pivot axis (16) of the joint (15) extends perpendicularly to the two legs (25) of the second end (20) of the first part (13) and perpendicularly to the second end (24) of the second part (14) arranged between the two legs.

7. The torque wrench adapter according to any one of claims 1 to 6, characterized in that The second portion (14) comprises an engagement element (29) which interacts with an engagement recess of the torque wrench.

8. A device comprising a torque wrench adapter (10) according to any one of claims 1 to 6, an insert open-end wrench (11) and a torque wrench (12).

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