TW201944398A - Lifting and pulling device for assisting in taking out or accommodating an object to achieve the functions of simple operation, labor saving and convenience - Google Patents

Abstract

Provided is a lifting and pulling device, which includes a pulling portion; a body portion connected to the pulling portion; and a lifting and pulling portion connected to the body portion. The lifting and pulling portion is used for lifting and pulling a corresponding object, and the lifting and pulling device is disposed on a board. As a result, a force can be applied to the pulling portion to drive the body portion and the lifting and pulling portion, so that the lifting and pulling portion may lift and pull the corresponding object to move so as to assist in taking out or accommodating the corresponding object, thereby achieving the functions of simple operation, labor saving and convenience.

Description

Lifting device

The invention provides a lifting device, in particular a user who can be used as an assistant to take out or contain a corresponding object.

Generally known racks are usually equipped with a unloading mechanism (or card ejection mechanism). The function of the unloading mechanism is to separate the hard disk or circuit board from the port configured in the rack. The dish or circuit board will be pushed up and displaced, and then disengaged from the port.

However, the conventional unloading mechanism of the rack can only shift the hard disk or circuit board a short distance, which hinders the rack partition or adjacent devices side by side, which makes it difficult and inconvenient for the user to handle.

Therefore, how to invent a lifting device, which can achieve the functions of simple operation, labor saving and convenience, will be a positive disclosure of the present invention.

In view of the shortcomings of the above-mentioned conventional technology, the inventor felt that it had not been perfected, and exhausted his mind to study and overcome it. Then he developed a lifting device to assist in taking out or accommodating the corresponding object, which is simple and labor-saving. And convenient effect.

To achieve the above and other objects, the present invention provides a lifting device, including: a pulling portion; a body portion connected to the pulling portion; and a lifting portion connected to the body portion, the lifting portion is used for lifting A corresponding object is pulled, and the lifting device is used to be set on a plate.

In the above-mentioned lifting device, a bending section is formed between the pulling part and the body, the bending section is adjacent to the plate, and the bending section is bent toward the plate by 2 degrees to 90 degrees.

In the above-mentioned pulling device, the pulling portion is operated to bend the bending section whose bending angle is restricted by the plate member after being disengaged from interference with the plate member.

In the above-mentioned lifting device, the lifting device or the plate has a guide unit, and the lifting device or the plate is movably coupled to the guide unit.

In the above-mentioned lifting device, the lifting device has a first limiting unit, and the first limiting unit interferes with a second limiting unit of the plate.

In the above-mentioned lifting device, the first position-limiting unit is a long hole or a long slot, and the second position-limiting unit is a protruding body, a hook body, or a buckle correspondingly accommodated in the long hole or a long slot.

In the above-mentioned lifting device, the second limiting unit is a long hole or a long slot, and the first limiting unit is a protruding body, a hook body, or a buckle body correspondingly accommodated in the long hole or long groove.

In the above-mentioned lifting device, the first limiting unit includes one or more flange posts, and the second limiting unit includes a quick release guide rail combined with the flange posts.

In the above-mentioned lifting device, the flange column has a column portion and a flange portion formed on one side of the column portion, and the quick release guide rail has a guide rail portion and a quick release hole portion connected to each other. The pillar portion is movably disposed in the corresponding rail portion, and the diameter of the flange portion is larger than the diameter of the pillar portion and the width of the rail portion and smaller than the diameter of the quick-release hole portion.

In the above-mentioned lifting device, the lifting portion is used to pull the corresponding object, and the lifting portion is an L-shaped body, a hook body, a buckle body, a convex body, a concave body, a layer body, a plane body, a curved body, and a curved body. , Box body, shell, sleeve body, spiral body, male button body, female button body or cylinder.

In the above-mentioned lifting device, the pulling part is combined with the body part by a combination member.

In the above-mentioned lifting device, the pulling portion has a buckle body for buckling to a plate or other object.

In the above-mentioned lifting device, the buckle system is a thread body, a cylinder body, a concave buckle body or a convex buckle body.

In the above-mentioned lifting device, the corresponding system is a hard disk, a memory, a block, a module, a housing, a box, a PCB, or a plastic body.

In the above-mentioned lifting device, the lifting device has a blocking portion for limiting the corresponding object between the lifting portion and the blocking portion.

In the above-mentioned lifting device, when the lifting device is pulled, the blocking portion is bent toward the plate to prevent the corresponding object from being blocked.

In the above-mentioned pulling device, the pulling portion is operated to bend the pulling device to disengage the corresponding object from the blocking of the blocking portion, so that the corresponding object is pulled out without being blocked by the blocking portion.

In the above-mentioned lifting device, the stopper is pressed by a mold and then rolled or shaped to form, or the stopper is pressed by a mold to turn the material of the lifting device. From forming.

In the above-mentioned lifting device, the stopper is a single element and has a clamping slot for applying pressure to the body, so that the material of the body enters or flows into the clamping slot for assembly, or a The stopper is deformed by the pressure of the mold to form a clamping groove for clamping the material of the body for assembly.

In the above-mentioned lifting device, the blocking portion is locked to the body portion or is fastened to the body portion, and the body portion has a corresponding locking portion or a corresponding fastening portion.

In the above-mentioned lifting device, the body is a metal body or a plastic body which can be bent or elastically deformed.

In the above-mentioned lifting device, the lifting device has a buckle portion, the plate has a corresponding buckle portion, and the buckle portion is used to elastically buckle in or out of the corresponding buckle portion.

In the above-mentioned lifting device, the plate is a casing, a frame, a cylinder, a PCB, a metal, a box, a plastic, a frame, a cover, a plate, a basket, a carrier, or a carrier.

In the above-mentioned lifting device, the pulling part and the body part are connected by a set of movable parts to enable the pulling part to be bent at an angle.

In the above-mentioned lifting device, the bending angle is 2 degrees to 180 degrees.

In the above pulling device, the buckle system has a sleeve, and the sleeve is used for assembling to the pulling portion.

In the above-mentioned pulling device, the sleeve has a material clamping portion, and the material clamping portion is used for clamping a part of the material of the pulling portion after being deformed under pressure.

In the above-mentioned lifting device, the sleeve is pressed on the pulling portion, so as to press part of the material of the pulling portion into or into the clamping portion.

In the above-mentioned lifting device, the corresponding object has a corresponding pulled portion, and the corresponding pulled portion is a flat surface, a convex body, a concave body, a thread body, a curved surface body, a living body, a curved body, and a groove body. , Hole, bevel, or step.

In the above pulling device, the buckle body can be partially or completely retracted into the sleeve.

With this, the lifting device of the present invention can apply force to the pulling portion and drive the body portion and the lifting portion, so that the lifting portion can lift the corresponding object to move, so as to assist in taking out or accommodating the corresponding object, thereby achieving simple operation, Save effort and convenience.

In order to fully understand the purpose, features and effects of the present invention, the following specific embodiments are used in conjunction with the accompanying drawings to make a detailed description of the present invention, which will be described later:

Please refer to FIG. 1 and FIG. 2. As shown, the present invention provides a lifting device. The lifting device 1 includes a pulling portion 11, a body portion 12, and a pulling portion 13.

The body portion 12 is connected to the pulling portion 11.

The lifting portion 13 is connected to the body portion 12, and the lifting portion 13 is an L-shaped body. The lifting portion 13 is used to pull a corresponding object 2, and the lifting device 1 is provided on a plate. Piece 3, and the lifting device 1 has a first limit unit 14, which intersects or is connected with each other by a second limit unit 31 of the plate 3. The lifting portion 13 may be an L-shaped body, a hook body, a buckle body, a convex body, a concave body, a layer body, a flat body, a curved body, a curved body, a box body, a shell, a sleeve body, a spiral body, a convex buckle body. , Concave button body or cylinder.

When in use, the first limiting unit 14 of the lifting device 1 and the second limiting unit 31 of the plate 3 can be connected to each other, and the corresponding object 2 is provided in the lifting device 1 The body 12 abuts against the lifting portion 13 to complete the setting of the lifting device 1, the corresponding object 2 and the plate 3. And the corresponding object 2 can be a hard disk, a memory, a block, a module body, a housing, a box, a PCB board or a plastic body; and the corresponding object 2 has a corresponding lifted portion 21, the corresponding The pulled portion 21 is a flat surface, a convex body, a concave body, a screw body, a curved surface body, a living body, a curved body, a groove body, a hole body, an inclined surface, or a stepped body.

In addition, the board 3 can be a cabinet, a rack, a cylinder, a PCB, a metal body, a box, a plastic body, a frame, a cover, a plate, a basket, a carrier, or a carrier.

When the corresponding object 2 is to be removed, an upward external force is applied to the pulling portion 11 of the pulling device 1 so that the pulling portion 11 simultaneously drives the body portion 12 and the pulling portion 13 upward, so that The first limiting unit 14 moves in the second limiting unit 31 of the plate 3, and pulls the corresponding object 2 upward with the lifting portion 13 in cooperation with the corresponding pulled portion 21, thereby the corresponding object 2 Lift up and remove.

Please refer to FIGS. 3 to 5. As shown in the figure, in this embodiment, there is a bending section 15 between the pulling portion 11 and the body 12 of the lifting device 1, and the bending section 15 is adjacent to each other. The plate 3 and the bending section 15 are bent toward the plate 3 by 2 to 90 degrees, and the pulling portion 11 is combined with the body portion 12 by a combination piece 16 and operates the pulling portion 11 The bending section 15 whose bending angle is restricted by the plate 3 is bent to the pulling portion 11 after leaving the interference of the plate 3 to allow the drawing space of the corresponding object (not shown in FIGS. 3 to 5), The corresponding object is taken out from the lifting device 1 without interference. By using the bending section 15, the pulling portion 11 achieves the effect of easily performing a force application operation.

The second limiting unit 31 is a long hole or a long slot, and the first limiting unit 14 is a protruding body, a hook body or a buckle body corresponding to the long hole or the long groove (the first limit The unit 14 is a long hole or a long slot, and the second limit unit 31 is a protrusion, a hook or a buckle correspondingly accommodated in the long hole or a long slot; and the first limit unit 14 includes One or more flange pillars, the second limiting unit 31 includes a quick release guide rail combined with the flange pillars 141, the flange pillars have a pillar portion 141, and a pillar portion 141- A flange portion 142 on one side, the quick-release guide rail has a guide rail portion 311 and a quick-release hole portion 312 communicated with each other, the column portion 141 is movably disposed in the corresponding rail portion 311, the flange The diameter of the portion 142 is larger than the diameter of the pillar portion 141 and the width of the guide rail portion 311 and smaller than the diameter of the quick-release hole portion 312. Thereby, the lifting device 1 can be combined with and disengaged from the first limiting unit 14 and the second limiting unit 31 of the plate 3 to lift the corresponding object 2 by using the pulling portion 13. Break away.

Please refer to FIG. 6 to FIG. 9. As shown in the figure, in this embodiment, the pulling portion 11 is a buckle body 111 for buckling to a plate 3 or other objects. The body 111 can be a threaded body (as shown in FIG. 6), a cylinder body (as shown in FIG. 7), a female buckle body (as shown in FIG. 8), or a male buckle body (as shown in FIG. 9). In addition, the lifting portion 13 is an L-shaped body (as shown in FIG. 6 and FIG. 7), a threaded body (as shown in FIG. 8), or a hook body (as shown in FIG. 9); In the case of a threaded body, the corresponding lifted portion 21 of the corresponding object 2 is a screw hole. Thereby, the present invention can meet the requirements of actual use.

Please refer to FIG. 10. As shown in the figure, in this embodiment, the pulling device 1 (or the plate) has a guide rail unit 17, and the plate 3 (or the pulling device 1) is movably coupled to the guide unit 17. This rail unit 17.

Please refer to FIG. 11 and FIG. 12. As shown in the figure, in this embodiment, the lifting device 1 has a blocking portion 18 for limiting the corresponding object 2 to the lifting portion 13. And this stopper 18. When the pulling device 1 is performing a pulling action, the pulling portion 11 is operated to tilt the stop portion 18 in the direction of the plate 3, so that the pulling device 1 is bent to the stop portion 18 Withdraw the drawable space of the corresponding object 2 so that the corresponding object 2 is not blocked, but is in a removable state so that the corresponding object 2 is pulled out. In this way, the pulling portion 11 can be pulled to use the The lifting portion 13 lifts the corresponding object 2 to detach. Thereby, the present invention can meet the needs of practical use.

Please refer to FIG. 13. As shown in the figure, in this embodiment, the stopping portion 18 is pressed by a tool (not shown in the figure), and then is lifted and formed on the pulling device 1.

Please refer to FIG. 14. As shown in the figure, in this embodiment, the stopping portion 18 is pressed by a mold (not shown) to the pulling device 1 and then rolled to form or fold to form, or the stop The stopping portion 18 is pressed by a mold (not shown) to turn the material of the pulling device 1 into a shape. Thereby, the present invention can better meet the needs of actual production.

Please refer to FIG. 15. As shown in the figure, in this embodiment, the stopping portion 18 of the pulling device 1 is a single element and has a clamping slot 181 for pressing the body 12 to make the body The material of the part 12 enters or flows into the card material groove 181 for assembly, or a mold (not shown) is pressed to deform the stopper portion 18 into a card material groove 181 for assembling the material of the body 12 Pick up. Thereby, the present invention can better meet the needs of actual production.

Please refer to FIG. 16 and FIG. 17. As shown in the figure, in this embodiment, the stopping portion 18 of the lifting device 1 is locked to the body portion 12 (as shown in FIG. 15), or is fastened to the body portion 12. The body 12 (as shown in FIG. 16) has a corresponding locking portion 121 or a corresponding fastening portion 122. Thereby, the present invention can better meet the needs of actual production.

Please refer to FIG. 18 and FIG. 19. In this embodiment, the body portion 12 of the lifting device 1 is a metal or plastic body that can be bent or elastically deformed, and the lifting device 1 The buckle portion 123 is provided. The plate 3 has a corresponding buckle portion 32. The buckle portion 123 is used to elastically buckle in or out of the corresponding buckle portion 32. Therefore, when the corresponding object 2 is to be removed, a force can be applied to the pulling portion 11 on one side, so that the body portion 12 is moved in the direction of the corresponding object 2 due to bending or elastic deformation, thereby allowing the The latching portion 123 is separated from the corresponding latching portion 32. In this way, the pulling portion 11 can be pulled to use the lifting portion 13 to pull the corresponding object 2 for detachment. Thereby, the present invention can meet the needs of practical use.

Please refer to FIG. 20 and FIG. 21. In this embodiment, the pulling portion 11 of the lifting device 1 and the body portion 12 are movably connected by a set of connecting portions 19 to make the pulling portion 11 bendable. Folded at an angle of 2 degrees to 180 degrees, and the pulling portion 11 has a sleeve 112, the buckle body 111 is provided on the sleeve 112, and the sleeve 112 is such that the buckle body 111 can be partially or fully retracted Into the sleeve 112. In addition, the plate 3 has a corresponding buckling portion 32 that is in abutment with the buckling body 111. Therefore, when the corresponding object 2 is to be removed, the buckling body 111 is partially or completely retracted into the sleeve 112, so that the buckling body 111 is separated from the corresponding buckling portion 32 of the plate 3. Then, the pulling portion 11 is bent on the body portion 12 by using the assembling portion 19, so that the pulling portion 11 (the buckle body 111 or the sleeve 112) can be pulled and pulled by the pulling portion 13. The corresponding object 2 is detached. Thereby, the present invention can meet the needs of practical use.

Please refer to FIG. 22 and FIG. 23. In this embodiment, the body portion 12 of the pulling device 1 is a metal or plastic body that can be bent or elastically deformed, and the pulling portion 11 is There is a sleeve 112, and the button body 111 is disposed on the sleeve 112, and the sleeve 112 enables the button body 111 to be partially or completely retracted into the sleeve 112. In addition, the plate 3 has a corresponding buckling portion 33 which is butted against the buckling body 111. Therefore, when the corresponding object 2 is to be removed, the buckling body 111 is partially or completely retracted into the sleeve 112, so that the buckling body 111 is separated from the corresponding buckling portion 33 of the plate 3, and Force the pulling portion 11 to one side, and let the pulling portion 11 tilt the stop portion 18 in the direction of the plate 3, so that the pulling device 1 is bent to the stop portion 18 to let out the corresponding The space in which the object 2 can be pulled out, so that the corresponding object 2 is not blocked, but can be taken out so that the corresponding object 2 is pulled out. In this way, the pulling portion 11 can be pulled and the pulling portion 13 can be used. Lift the corresponding object 2 to detach it. Thereby, the present invention can meet the needs of practical use.

Please refer to FIG. 24. In this embodiment, the sleeve 112 has a clamping portion 113, and the clamping portion 113 is used for clamping a part of the material of the pulling portion 11 after being deformed under pressure. Thereby, the sleeve 112 and the pulling portion 11 can be firmly combined.

Please refer to FIG. 25. In this embodiment, the sleeve 112 is pressurized on the pulling portion 11 by a tool 4 to press part of the material of the pulling portion 11 into or into the sleeve.料 料 部 113。 Tube 112 of the card portion 113. Thereby, the sleeve 112 and the pulling portion 11 can be firmly combined.

The present invention has been disclosed in the foregoing with a preferred embodiment, but those skilled in the art should understand that this embodiment is only for describing the present invention, and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the scope of the patent application.

1‧‧‧lifting device

11‧‧‧Pull

111‧‧‧ button body

112‧‧‧ sleeve

113‧‧‧Card material department

12‧‧‧ Body

121‧‧‧ Corresponding lock

122‧‧‧corresponding buckle

123‧‧‧Snap

13‧‧‧Tirah

14‧‧‧ the first limit unit

141‧‧‧Column

142‧‧‧ flange

15‧‧‧Bend section

16‧‧‧Assembly

17‧‧‧rail unit

18‧‧‧ stop

181‧‧‧Card Feed Trough

19‧‧‧Assembly Department

2‧‧‧ Corresponding object

21‧‧‧ Correspondence

3‧‧‧ plates

31‧‧‧Second limit unit

311‧‧‧rail section

312‧‧‧Quick Release Hole

32‧‧‧corresponding buckle

33‧‧‧corresponding buckle

4‧‧‧Tools

[Fig. 1] A schematic diagram of an appearance of a first embodiment of the present invention. [FIG. 2] It is a schematic diagram of a use state of the first embodiment of the present invention. 3 is a schematic side view view of a second embodiment of the present invention. [Fig. 4] An exploded view of the second embodiment of the present invention. FIG. 5 is a schematic diagram of an appearance of a second embodiment of the present invention. 6 is a schematic diagram of a third embodiment of the present invention. 7 is a schematic diagram of a fourth embodiment of the present invention. 8 is a schematic diagram of a fifth embodiment of the present invention. [FIG. 9] A schematic diagram of a sixth embodiment of the present invention. 10 is a schematic diagram of a seventh embodiment of the present invention. 11 is a schematic diagram of an eighth embodiment of the present invention. [FIG. 12] It is a schematic diagram of the use state of the eighth embodiment of the present invention. 13 is a schematic diagram of a ninth embodiment of the present invention. 14 is a schematic diagram of a tenth embodiment of the present invention. 15 is a schematic diagram of an eleventh embodiment of the present invention. 16 is a schematic diagram of a twelfth embodiment of the present invention. 17 is a schematic diagram of a thirteenth embodiment of the present invention. 18 is a schematic diagram of a fourteenth embodiment of the present invention. [FIG. 19] It is a schematic diagram of a use state of the fourteenth embodiment of the present invention. 20 is a schematic diagram of a fifteenth embodiment of the present invention. [FIG. 21] It is a schematic diagram of a use state of the fifteenth embodiment of the present invention. 22 is a schematic diagram of a sixteenth embodiment of the present invention. [FIG. 23] It is a schematic diagram of a use state of the sixteenth embodiment of the present invention. 24 is a schematic diagram of a seventeenth embodiment of the present invention. [FIG. 25] A schematic diagram of an eighteenth embodiment of the present invention.

Claims (30)

A lifting device includes: a pulling portion; a body portion connected to the pulling portion; and a lifting portion connected to the body portion, the lifting portion is used to pull a corresponding object, and the lifting device For setting on a plate. The pulling device according to claim 1, wherein the pulling portion and the body portion have a bending section, the bending section is adjacent to the plate, and the bending section is bent toward the plate 2 Degree ~ 90 degrees. The pulling device according to claim 2, wherein the pulling portion is operated to bend the bending section whose bending angle is restricted by the plate member after disengaging from the interference with the plate member. The lifting device according to claim 1, wherein the lifting device or the plate has a guide unit, and the lifting device or the plate is movably coupled to the guide unit. The lifting device according to claim 1, wherein the lifting device has a first limiting unit, and the first limiting unit interferes with a second limiting unit of the plate. The lifting device according to claim 5, wherein the first limiting unit is a long hole or a long groove, and the second limiting unit is a protrusion, a hook correspondingly accommodated in the long hole or a long groove. Body or button body. The lifting device according to claim 5, wherein the second limiting unit is a long hole or a long groove, and the first limiting unit is a protrusion, a hook correspondingly accommodated in the long hole or a long groove. Body or button body. The lifting device according to claim 5, wherein the first limiting unit includes one or more flange posts, and the second limiting unit includes a quick release guide rail combined with the flange posts. The lifting device according to claim 8, wherein the flange column has a column portion and a flange portion formed on one side of the column portion, and the quick release guide rail has a guide rail portion and A quick-release hole portion, the post portion is movably disposed in the corresponding guide portion, and the diameter of the flange portion is larger than the diameter of the post portion and the width of the guide portion and smaller than the quick-release hole portion. Of its diameter. The pulling device according to claim 1, wherein the pulling portion is used to pull the corresponding object, and the pulling portion is an L-shaped body, a hook body, a buckle body, a convex body, a concave body, a layer body, a flat body, an arc Face body, curved body, box body, shell body, sleeve body, spiral body, male button body, female button body or cylinder. The pulling device according to claim 1, wherein the pulling portion is combined with the body by a combination piece. The pulling device according to claim 1, wherein the pulling portion has a buckle body for buckling to a plate or other object. The pulling device according to claim 12, wherein the buckle system is a threaded body, a cylinder, a concave buckle body or a convex buckle body. The lifting device according to claim 1, wherein the counterpart system is a hard disk, a memory, a block, a module, a housing, a box, a PCB, or a plastic body. The lifting device according to claim 1, wherein the lifting device has a blocking portion for limiting the corresponding object between the lifting portion and the blocking portion. The lifting device according to claim 15, wherein when the lifting device is pulled, the blocking portion is bent toward the plate to prevent the corresponding object from being blocked. The pulling device according to claim 15, wherein the pulling portion is operated to bend the pulling device to disengage the corresponding object from the stop of the blocking portion, so that the corresponding object is not blocked by the blocking portion. Was pulled out. The lifting device according to claim 15, wherein the stopper is pressed by a mold and then rolled or formed to be folded, or the stopper is pressed by a mold to make the lifting device The material of the pulling device is turned up and formed. The lifting device according to claim 15, wherein the blocking portion is a single element and has a clamping slot for applying pressure to the body to allow the material of the body to enter or flow into the clamping slot for assembly Connection, or pressing a mold to deform the stop portion to form a material slot to hold the body material for assembly. The lifting device according to claim 15, wherein the blocking portion is locked to the body or fastened to the body, and the body has a corresponding locking portion or a corresponding fastening portion. The pulling device according to claim 1, wherein the body is a metal body or a plastic body which has bendability or elastic deformation. The lifting device according to claim 21, wherein the lifting device has a buckle portion, the plate has a corresponding buckle portion, and the buckle portion is used to elastically buckle in or out of the corresponding buckle portion. The lifting device according to claim 1, wherein the plate is a casing, a frame, a cylinder, a PCB, a metal body, a box, a plastic body, a frame, a cover, a plate, a basket, Carrier or carrier. The pulling device according to claim 1, wherein the pulling portion and the body portion are connected by a set of connecting portions to enable the pulling portion to be bent at an angle. The lifting device according to claim 24, wherein the bending angle is 2 degrees to 180 degrees. The pulling device according to claim 12, wherein the buckle system has a sleeve, and the sleeve is used for assembling to the pulling portion. The pulling device according to claim 26, wherein the sleeve has a material clamping portion, and the material clamping portion is used for clamping a part of the material of the pulling portion after being deformed under pressure. The pulling device according to claim 26, wherein the sleeve is pressurized on the pulling portion, so as to press part of the material of the pulling portion into or into the clamping portion. The lifting device according to claim 1, wherein the corresponding object has a corresponding pulled portion, and the corresponding pulled portion is a flat surface, a convex body, a concave body, a thread body, a curved surface body, a living body, Surface body, slot body, hole body, bevel or stepped body. The pulling device according to claim 26, wherein the buckle body can be partially or completely retracted into the sleeve.