Construction of a socket wrench insert for hand tools
The socket wrench insert addresses nut edge wear by providing angular displacement compensation, ensuring reliable nut operation with reduced wear through flush fitting and stop/detent surfaces.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-04-02
AI Technical Summary
Existing socket wrenches experience issues with nut edge wear due to improper engagement between the retaining ring and nut edge, leading to difficulty in loosening or tightening nuts, especially when the nut is damaged.
A socket wrench insert with a hexagonal insert opening and stop and retaining elements that provide additional angular displacement compensation, allowing for a flush fit and reduced wear by using stop and detent surfaces to accommodate damaged nuts.
Enables reliable loosening or tightening of nuts with reduced wear on the nut edges, even when the nut is severely damaged, through angular compensation and flush fitting.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical field
[0001] The present utility model relates to the design of a socket wrench insert for hand tools, which, by means of a displacement compensation function, enables a closer and more reliable torque transmission between a hand tool and an intact or differently worn nut. State of the art
[0002] Hand tools are frequently used for assembling, disassembling, and repairing objects. Wrenches and socket wrenches are among the most common and frequently used hand tools (socket wrenches are used as an example in this utility model). A typical socket wrench has a receptacle with a retaining ring on its inner circumference, the diameter of which corresponds to the outer diameter of a nut. This allows the nut to be inserted into the receptacle, and the force exerted by the socket wrench enables the nut to be loosened or tightened. Although the socket wrench receptacle effectively loosens or tightens the nut, it is known that, in order to ensure smooth insertion of the nut, a matching size between the two is necessary.When tightening the socket wrench, the retaining ring in the socket and the nut edge may not engage properly, creating a point of stress between the retaining ring and the nut edge. This can easily lead to wear on the nut edge. Over time, as the nut edge wears down to a certain degree, the nut edge and the retaining edge inside the socket slip past each other, making it impossible to remove or tighten the nut. Purpose of the present utility model
[0003] Against this background, the main task of the present utility model is to create a drive tool with anti-slip function that makes it possible to insert the nut edges into its through-hole, so that a flush fit between the insertion opening and the outer diameter of the nut can be achieved by the clamping action of the first and second stop surfaces of the stop element with the first, second and third detent surfaces of the holding element, thereby reducing the load on the nut edges and their wear.
[0004] Another objective of the present utility model is to create a drive tool with an anti-slip function that allows the outer diameter of the nut to be compensated by an additional angular displacement of 30° using the support points of the first and second stop element points of the stop element as well as the first compensation point for displacement of the holding element, in order to enable the loosening or tightening of damaged nuts.
[0005] A further objective of the present utility model is to create a drive tool with an anti-slip function that allows the outer diameter of the nut to be compensated for by an additional angular displacement of 25° using the second compensation point for displacement of the holding element, in order to facilitate the loosening or tightening of damaged nuts. An additional compensation stage is intended to ensure that even severely damaged nuts can be reliably operated.
[0006] According to the invention, these problems are solved by the characterizing features of claim 1, namely by a socket wrench insert assembly for hand tools comprising the following components: a base body having an insert bushing; an insert bushing consisting of a plurality of through-holes which together form a hexagonal insert opening, wherein one end of the through-hole is connected to a stop element and another end of the through-hole is connected to a retaining element; a stop element which is connected to an end of the through-hole via a first stop surface, wherein the first stop surface is connected to a first stop element point, the first stop element point being connected to a stop recess which is connected to a second stop surface, thereby forming a second stop element point;and a retaining element connected to one end of the through-opening via a first detent surface, wherein the first detent surface is connected to a first recess, and this in turn is connected to the second recess, wherein a first compensation point for displacement is formed between them, the second compensation point for displacement and the first compensation point for displacement being arranged at different heights. Advantageous embodiments are characterized by the dependent claims. Brief description of the drawings
[0007] The embodiments of the present utility model are described by way of example with reference to the following drawings. They show Fig. 1 a perspective assembly view of a socket wrench insert of a preferred embodiment of the present utility model; Fig. 2 a top view of a socket wrench insert of a preferred embodiment of the present utility model; Fig. 3 another top view of a socket wrench insert according to a preferred embodiment of the present utility model; Fig. 4 a further top view of a socket wrench insert according to a preferred embodiment of the present utility model; Fig. 5 a sectional view of a socket wrench insert according to a first preferred embodiment of the present utility model; Fig. 6 a sectional view of a socket wrench insert according to a second preferred embodiment of the present utility model; Fig. 7 a sectional view of a socket wrench insert according to a third preferred embodiment of the present utility model; and Fig. 8 a perspective assembly view of a socket wrench insert according to a fourth preferred embodiment of the present utility model. Description of preferred embodiments
[0008] The following section provides a more detailed explanation of the present utility model with reference to the drawings and exemplary embodiments relating to the design, function, and advantages of a socket wrench insert for hand tools. It is understood that the embodiment described here serves only as an example of the principles of the present utility model and that numerous modifications of this embodiment can be made by those skilled in the field without deviating from the scope of the present utility model, which is set out in the claims below.
[0009] A preferred embodiment of a socket wrench insert according to the invention for hand tools, such as those used by Fig. The component shown in 1 to 4 essentially comprises a base body 10, an insert bushing 20, a stop element 30 and a retaining element 40.
[0010] The base body 10 has an insert bushing 20.
[0011] The insert bushing 20 consists of a plurality of through-openings 21, which form a hexagonal insert opening 22. One end of each through-opening 21 is connected to a stop element 30 and the other end of each through-opening 21 is connected to a retaining element 40.
[0012] The stop element 30 has a first stop surface 31, a first stop element point 32, a stop recess 33, a second stop surface 34 and a stop element point 35, wherein the stop element 30 is connected via the first stop surface 31 to one end of the through-opening 21, the first stop surface 31 is connected to the first stop element point 32, the first stop element point 32 is connected to the stop recess 33, which is connected to the second stop surface 34, and thereby forms a second stop element point 35.
[0013] The retaining element 40 has a first detent surface 41, a first recess 42, a second recess 44 with a first compensation point for displacement 43, a third recess 46 with a second compensation point for displacement 45, and a second detent surface 47. The retaining element 40 is connected via the first detent surface 41 to one end of the through-opening 21, which is formed on the side facing away from the stop element 30. The first detent surface 41 is connected to the first recess 42, and this in turn is connected to the second recess 44. A first compensation point for displacement 43 is formed between them. This first compensation point for displacement 43 is at the same height as the first detent surface 41 and forms an angle of approximately 30° to the X-axis of the insert opening 22 (as shown in Figure 1). Fig. 3 shown). The second recess 44 is connected to the first recess 46, which forms a second compensation point for displacement 45. The angle to the X-axis of the insert opening 22 is approximately 25° (as shown in Fig. 3 shown). The second compensation point for displacement 45 and the first compensation point for displacement 43 are located at different heights, i.e., the straight-line distance between the second compensation point for displacement 45 and the center of the insert opening 22 is greater than the straight-line distance between the first compensation point for displacement 43 and the center of the insert opening 22 (as shown in Fig. 4 shown). The third recess 46 is connected to the second resting surface 47.
[0014] According to a first preferred embodiment of the present utility model, as shown in Fig. As can be seen in Figure 5, this is a diagram of the nut 50 in its normal state. The nut edges 51 of the nut 50 can be received in the through-hole 21. When the base body 10 is driven and the insert bushing 20 rotates clockwise (counterclockwise), the rotatable insert bushing 20 is fixed by the first stop surface 31 and the second stop surface 34 of the stop element 30, as well as the first locking surface 41 and the second locking surface 47 of the retaining element 40, such that the insert opening 22 and the outer diameter of the nut 50 are flush against each other. This reduces the force on the nut edges 51 of the nut 50 and thus minimizes wear.
[0015] According to a second preferred embodiment of the present utility model, as shown in Fig. As can be seen in Figure 6, the nut edge 51 of the nut 50 is worn by approximately 20% in this condition. The nut 50 with the worn nut edge 51 is inserted into the insert bushing 20, and the base body 10 is rotated clockwise (counterclockwise). The first stop element point 32 and the second stop element point 35 of the stop element 30, as well as the first compensation point for displacement 43 of the retaining element 40, create an additional angular compensation of approximately 30°, which allows damaged nuts 50 to continue to be driven positively.
[0016] According to a third preferred embodiment of the present utility model, as shown in Fig. As can be seen in Figure 7, the nut edges 51 of the nut 50 are worn by approximately 20-35% in this condition. The nut 50 with the worn nut edges 51 is inserted into the insert bushing 20, and the base body 10 is rotated clockwise (counterclockwise). With the aid of the second compensation point for displacement 45 of the retaining element 40, the outer diameter of the nut 50 is compensated by an additional angular displacement of approximately 25°, thus enabling the secure rotation (loosening or tightening) of the damaged nut 50.
[0017] As described above, the present utility model already represents a design for a socket wrench insert for hand tools, which is characterized by the following technical features and advantages: (1) The nut edges 51 of the nut 50 can advantageously be inserted into the through-holes 21. By rotating the movable insert bushing 20 and the clamping action of the first and second stop surfaces 31, 34 of the stop element 30 and the first and second detent surfaces 41, 47 of the retaining element 40, a flat contact is created between the insert opening 22 and the outer diameter of the nut 50, thus enabling drive. This reduces the load on the nut edges 51 of the nut 50, which in turn reduces wear at these points. (2) The detent points of the first and second stop element points 32, 35 of the stop element 30, as well as the detent point of the first compensation point for displacement 43 of the retaining element 40, allow the outer diameter of the nut 50 to accommodate an additional angular compensation of approximately 30°. This enables a detent or locking drive, which allows damaged nuts 50 to be loosened or tightened. (3) The detent point of the second compensation point for displacement 45 of the retaining element 40 allows the outer diameter of the nut 50 to accommodate an additional angular compensation of approximately 25°. This also enables a detent or locking drive to loosen or tighten damaged nuts 50.
[0018] According to a fourth preferred embodiment of the present utility model, as shown in Fig. As can be seen in Figure 8, the hand tool is a combined ring-open-end wrench 60, which is provided at one end with an insert socket 20 of a socket wrench insert of the present utility model. Reference symbol list 10 basic shapes 20 Insert socket 21 Passage opening 22 Insertion opening 30 - Stop element 31 First stop surface 32 First stop element point 33 Stop recess 34 Second stop surface 35 Second stop element point 40 retaining element 41 First rest area 42 First Exclusion 43 First compensation point for displacement 44 Second Exclusion 45 Second compensation point for displacement 46 Third exception 47 Second rest area 50 mother 51 Nut edge 60 Combined Ring-Open End Wrenches
Claims
[1] A design of a socket wrench insert for hand tools, comprising - a base body (10) which has an insert bushing (20); - an insert bushing (20) consisting of a plurality of through openings (21) which together form a hexagonal insert opening (22), wherein one end of the through opening (21) is connected to a stop element (30) and another end of the through opening (21) is connected to a retaining element (40); - a stop element (30) which is connected via a first stop surface (31) to one end of the through-opening (21), wherein the first stop surface (31) is connected to a first stop element point (32), which is connected to a stop recess (33), which is connected to a second stop surface (34), thereby forming a second stop element point (35); and - a retaining element (40) which is connected via a first locking surface (41) to an end of the through-opening (21), wherein the first locking surface (41) is connected to a first recess (42) which is further connected to the second recess (44), wherein a first compensation point for displacement (43) is formed in between, wherein the second compensation point for displacement (45) and the first compensation point for displacement (43) are arranged at different heights. [2] The construction of a socket wrench insert for hand tools according to claim 1, characterized by , that the first compensation point for displacement (43) is at the same height as the first resting surface (41). [3] The construction of a socket wrench insert for hand tools according to claim 1, characterized by, that the straight-line distance between the second compensation point for displacement (45) and the center of the insertion opening (22) is greater than the straight-line distance between the first compensation point for displacement (43) and the center of the insertion opening (22). [4] The construction of a socket wrench insert for hand tools according to claim 1, characterized by , that the first compensation point for displacement (43) forms an angle of approximately 30° to the X-axis of the insertion opening (22). [5] The construction of a socket wrench insert for hand tools according to claim 1, characterized by , that the second compensation point for displacement (45) forms an angle of approximately 25° to the X-axis of the insertion opening (22).