JP2013220511A - Structure of wrench and jockey operation bar with jockey operation means - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the manufacturing cost of a maintenance tool set for changing a tire.SOLUTION: A structure of a wrench and a jockey operation bar is configured as follows. The wench is configured by pressing an end of a wrench handle 3 of one side of the wrench 1 to form a flat plate-like pressuring plate body 4, penetrating a fixed hole 5 on an upper face of the pressuring plate body, and connecting a connection pin 10 divided as a head part, a square pin part, and a rivet part into a fixed hole with respect to the wrench 1 configured by bending one side of a ring bar and composing a wrench head 2 by hot forging the end thereof. The jockey operation bar is equipped with a head insertion hole for inserting the head part of the connection pin fixed on a connection plate body, a square pin connection hole for inserting the square pin part of the connection pin 10, and a connection passage for connecting the head insertion hole and the square pin connection hole.

Description

  SUMMARY OF THE INVENTION The present invention provides a jockey essential for automobiles, a jockey actuating bar for operating the jockey, and a wrench for disassembling or assembling tires in order to reduce the number of components and reduce the manufacturing cost. The present invention relates to a structure of a wrench and a jockey actuating bar provided with jockey actuating means capable of actuating a jockey on a handle of the wrench.

  All commonly produced cars are equipped with a simple service tool set for changing tires in the car. Such a service tool set is equipped with a wrench for attaching and detaching a tire and a vehicle body at a predetermined height. And a jockey operating bar for operating the jockey.

  In particular, in the case of the wrench and jockey operation bar, it is a tool for loosening or tightening a nut fixing a tire, and a considerable degree of rigidity is required. Usually, a metal ring rod is wrench through hot forging. It is produced by a process of forming a head and performing a heat treatment to reinforce the strength of the entire wrench.

  Similarly, since the jockey operation bar is required to have the same firmness, heat treatment is performed in the last step.

  Therefore, it goes without saying that a considerable cost is required in the process of processing the metal rod.

  Since the maintenance tool set having the above-described simple configuration is essential for an automobile, the producer makes various efforts to reduce the manufacturing cost of the maintenance tool set.

  As part of such efforts, a car wrench of Patent Document 1, which is a prior application of the present inventor, has been proposed.

  The wrench has a structure in which an actuating bar for actuating a jockey and a wrench are combined. The configuration is briefly summarized as follows.

  In a wrench provided with a wrench head at one end and a wrench handle at the other end, a connecting tube portion having a diameter coupled to the wrench handle and one side of the connecting tube portion are expanded, An expanded tubular body portion having an expanded inner diameter, and a fastening that penetrates through the central portion of the left and right notched pieces by forming a narrow notched portion symmetrically on both the left and right sides at the end of the expanded tubular body portion to form left and right notched pieces The present invention relates to a working wrench composed of a working absence fastening portion formed with a hole, and a wrench formed by coupling and fixing a connecting tubular body portion formed at one end of the working tube to a wrench handle of the wrench.

Korean Patent No. 880381 Specification

  It is an object of the present invention to provide means that can further reduce the production cost by further developing the invention disclosed in the patent document.

  It is another object of the present invention to form a connecting means with a jockey provided in a wrench very simply for convenience of use.

  In order to solve the above-described object, the present invention is configured to fix a connecting pin by pressurizing and expanding a handle part of a normal automobile wrench, and connecting a small hole and a large hole to a jockey operation part provided in the jockey. There is provided a wrench including jockey actuating means formed so as to form an eight-shaped coupling hole and the coupling pin is moved and fixed to a small hole through a large hole.

  The present invention having the above-described configuration is provided with means for operating a jockey on a wrench, and the jockey has a simple structure in which a coupling hole into which the coupling pin is inserted and fixed is formed. Since the jockey operation bar, which is a basic component, can be replaced with a jockey, the production cost can be reduced.

It is a disassembled perspective view of the wrench applied to this invention. It is an expanded sectional view of the wrench applied to the present invention. It is a top view of a wrench and an operation stick applied to the present invention. It is a perspective view which shows the state which connects the wrench of this invention to an action | operation stick | rod. It is a plane enlarged view which shows the state which connects the wrench of this invention to an action | operation rod. It is a perspective view which shows the use condition of this invention. It is a plane enlarged view which shows the use condition of this invention. It is an example illustration of an operating rod applied to the present invention. It is an example illustration of an operating rod applied to the present invention. It is an example illustration which shows embodiment which fixes a coupling pin to a wrench. It is an example illustration which shows embodiment which fixes a coupling pin to a wrench. It is an example illustration of a wrench applied to the present invention. FIG. 6 is an exemplary illustration of a coupling pin coupled to a wrench. It is an example illustration of an operating rod applied to the present invention.

  The configuration and operation of the present invention having the above effects will be described in detail.

  In a wrench consisting of a wrench head formed by bending one end of the ring rod and hot forging its end, pressurizing the end of the wrench handle on one side of the wrench to form a flat pressure plate A wrench configured by coupling a fixing hole through the fixing plate with a fixing hole penetrating the upper surface of the pressure plate body and being divided as a head portion, a square pin portion, and a rivet portion; A head insertion hole into which the head portion of the fixed coupling pin is inserted; a square pin coupling hole into which the square pin portion of the coupling pin is inserted; and a connecting passage that connects the head insertion hole and the square pin coupling hole. It is composed of a jockey actuating rod provided, and after the coupling pin of the wrench is coupled to the square pin coupling hole, the wrench is rotated 180 ° from the left side to the right side, and the rotated wrench is rotated in the horizontal state to be in the initial state. Returned to After, which is constituted so as to operate the jockey by a method for re-rotated 180 degrees.

  The present invention having the above configuration will be described more specifically with reference to the accompanying drawings.

  1 is an exploded perspective view of a wrench applied to the present invention, FIG. 2A is an enlarged cross-sectional view of a wrench applied to the present invention, and FIG. 2B is a plan view of a wrench and operating rod applied to the present invention. 3A and 3B are a perspective view and an enlarged plan view showing a state in which the wrench of the present invention is connected to an operating rod, and FIGS. 4A and 4B are a perspective view and an enlarged plan view showing the use state of the present invention. It is.

  A wrench head 2 comprising a wrench head 2 that can bend or tighten a bolt at one end to loosen or tighten a bolt; a wrench handle 3 for operating the wrench head 2; In the jockey 20 provided with an operating rod 21 integrally formed with a plate-like coupling plate body 23 at the tip, the wrench 1 pressurizes the end of the wrench handle 3 up and down. A pressure plate body 4 is formed, a small-diameter fixing hole 5 penetrating vertically through the pressure plate body 4 is formed, a rivet portion 13 that is tightly inserted into the fixing hole 5, and a square pin portion having a substantially rectangular rod shape The connecting pin 10 composed of the head 12 and the circular head portion 11 is fixed by connecting the rivet portion 13 to the fixing hole 5.

  The connecting plate body 23 of the operating rod 21 provided in the jockey 20 has a square pin connecting hole 25 having a diameter to which the square pin portion 12 of the connecting pin 10 is connected on the front side, and a rear side of the square pin connecting hole 25. A head insertion hole 24 having a diameter into which the head portion 11 of the coupling pin 10 is inserted is provided on the side, and the square pin coupling hole 25 and the head insertion hole 24 are connected by a connection passage 26. Is formed so as to have a diameter through which a short axis that is a vertical portion of the square pin portion 12 having a rectangular cross-sectional shape passes.

  Specifically, the sizes of the coupling pin 10, the head insertion hole 24, and the square pin coupling hole 25 will be described. The diameter t 1 of the head insertion hole 24 that penetrates the coupling plate body 23 is the head portion 11 of the coupling pin 10. The head portion 11 is formed so as to be smoothly inserted into the head insertion hole 24. The diameter t <b> 2 of the square pin coupling hole 25 is formed to be slightly larger than the length of the major axis T <b> 2, which is a lateral part of the square pin portion 12 of the coupling pin 10, and the connection for connecting the square pin coupling hole 25 and the head insertion hole 24. The width t3 of the passage 26 is formed to have a width that allows the short axis T3, which is the vertical portion of the square pin portion 12, to pass therethrough.

  The operation state will be described by taking as an example the operation of replacing the tire by operating the jockey 20 using the wrench 1 of the present invention formed as described above.

  First, as shown in FIGS. 3A and 3B, a head insertion hole 24 formed in the coupling plate body 23 of the operating rod 21 exposed on one side of the jockey 20 is formed at the end of the wrench handle 3 of the wrench 1. The head portion 11 of the coupling pin 10 fixed so as to protrude from the upper surface of the pressure plate 4 is inserted.

  After the operating rod 21 and the wrench 1 are positioned on the same horizontal line, if the wrench 1 is pulled forward, the short axis T3 of the square pin portion 12 formed on the lower side of the head portion 11 of the connecting pin 10 is connected. It passes through the passage 26 and enters the square pin coupling hole 25.

  In a state where the wrench 1 is coupled to the operating rod 21 of the jockey 20 using the above-described means, the jockey 20 enters the lower part of the vehicle body to support the frame, and then the wrench head of the wrench 1 is used. The operating rod 21 is operated by grasping and rotating 2.

  The operation of operating the jockey by rotating the operating rod 21 by grasping the wrench head 2 with a hand will be specifically described with reference to FIGS. 4A and 4B.

  The wrench 1 positioned on the same vertical line as the operating rod 21 is rotated 90 ° to the left side of the coupling plate 22 of the operating rod 21 when viewed from above.

  At this time, the square pin portion 12 of the coupling pin 10 inserted in the square pin coupling hole 25 of the coupling plate body 23 also rotates to form a right angle with the connection passage 26, thereby preventing the coupling pin 10 from being detached.

  Next, the wrench 1 is rotated 180 ° clockwise, which is the screw tightening direction, the operating rod 21 is rotated 180 °, the jockey 20 is raised to a predetermined height, and the wrench 1 is further leveled with the ground. After rotating 180 °, the operation of rotating 180 ° in the screw tightening direction is repeated to operate the jockey 20 and lift the automobile to a predetermined height.

  After the maintenance of the tire is completed, the operation of lowering the jockey 20 and lowering the automobile requires a relatively small force. Therefore, the wrench 1 coupled to the operating rod 21 of the jockey 20 can be used without using the above-described means. Even when the wrench 1 is connected to the operation rod 21 in a straight line and the wrench head 2 is rotated, the jockey 20 is lowered.

  In the present invention, the connecting pin 10 fixed to the pressure plate 4 of the wrench 1 can be applied in a form of three stages.

  That is, as shown in FIG. 8, the head portion 101, the coupling portion 102 having a diameter T2 smaller than the diameter T1 of the head portion 101, and the passage portion 103 having a diameter T3 smaller than the diameter T2 of the coupling portion 102, A multi-stage coupling pin 100 including a rivet portion 104 having a diameter T4 smaller than the passage portion 103 can be applied.

  In the coupling pin 100 according to such an embodiment, the head portion 101 is inserted into the head insertion hole 24 penetrating the coupling plate body 23 of the jockey 20, and then the passage portion 103 having the diameter T3 passes through the coupling passage 26. Finally, the square pin coupling hole 25 is coupled with the coupling portion 102 formed on the lower side of the head portion 101 of the coupling pin 100 to prevent the square pin coupling hole 25 from being detached.

  The head insertion hole 24, the square pin coupling hole 25, and the connection passage 26 of the coupling plate 23 formed in the operating rod 21 of the jockey 20 applied to the present invention can be configured as shown in FIGS. 5A and 5B. it can. That is, the head insertion hole 24 and the square pin coupling hole 25 are formed so as to intersect with each other, but the width t3 of the intersecting portion is such that the short axis T3 of the square pin portion 12 formed in the coupling pin 10 passes. Can be formed to the extent possible.

  Further, as shown in FIG. 9, a square pin coupling hole having a diameter t <b> 2 slightly larger than the major axis T <b> 2 of the square pin portion 12 of the coupling pin 10 is formed in the coupling plate body 23 formed on the jockey operating rod 21 of the jockey 20. Only the rectangular pin coupling hole 25 ′ and the front surface of the coupling plate body 23 are cut out to form a cutout passage 26 ′. The width t3 of the cutout passage 26 ′ is set to the width of the square pin portion 12. It is possible to provide means for inserting the coupling pin 10 formed on the jockey 1 from the front portion of the coupling plate 23, which is formed slightly larger than the short axis T3.

  In such an embodiment, when the jockey 1 is operated, there is a risk that the coupling pin 10 may be detached from the square pin coupling hole 25 ′ due to carelessness or immaturity of the user, but the operation of rotating the wrench 1 180 ° is instantaneous. Therefore, such a risk can be sufficiently eliminated.

  In applying the present invention, a wrench 1 in which a wrench head 2 and a wrench handle 3 are integrally formed by processing a ring rod is shown. However, as shown in FIG. 7, a wrench formed by processing a metal rod. 1 'can also be applied, and the end of the wrench handle 3' made of a rod is pressed up and down to form a pressure plate 4 ', and the coupling pin 10 is coupled and fixed. it can.

  Further, as a means for fixing the coupling pin 10 to the pressure plate body 4 of the wrench 1, a means for punching and fixing the rivet portion 13 as shown in FIGS. 6A and 6B can be applied. The screw 13 'can be formed on the outer peripheral edge of the screw 13 and can be screwed together. However, the fixing means for such a connecting pin can be implemented by various design changes in addition to the above-described means. It would not be possible to deviate from the scope of the present invention by changing the fixing means of the connecting pins.

  In the present invention, a coupling pin is fixed to a coupling plate 23 formed integrally with the jockey operating rod 21 of the jockey 20, and a head insertion hole, a square pin coupling hole, and a coupling passage into which the coupling pin is inserted are wrench. Even if it is formed on one pressure plate 4, the same effect can be obtained.

  The configuration according to the above-described embodiment of the present invention includes a simple process of fixing a coupling pin to the coupling plate body 23 of the jockey 20, and a wrench 1 that is easy to process, and a head insertion hole, a square pin coupling hole, and Since the connecting passage can be easily processed, a feature that can further reduce the production cost is provided.

DESCRIPTION OF SYMBOLS 1 Wrench 2 Wrench head 3 Wrench handle 4 Pressure plate body 5 Fixing hole 10,100 Coupling pin 11 Head part 12 Square pin part 13 Rivet part 20 Jockey 21 Actuation rod 22 Screw part 23 Coupling board body 24 Head insertion hole 25 Square pin coupling Hole 26 Connection passage T1 Head portion diameter T2 Square pin portion long axis T3 Square pin portion short axis t1 Head insertion hole diameter t2 Square pin coupling hole diameter t3 Connection passage width

Claims (3)

A wrench (1) composed of a wrench head (2) that can bend or tighten one end of a ring rod to loosen or tighten a bolt, and a wrench handle (3) for operating the wrench head (2); In a jockey (20) comprising an operating rod (21) in which a screw part (22) is formed at the outer peripheral edge and a plate-like coupling plate (23) is integrally formed at the tip part.
The wrench (1) pressurizes the end of the wrench handle (3) up and down to form a pressure plate (4), and a small-diameter fixing hole (5) that penetrates the pressure plate (4) up and down. Form the
A rivet portion (13) that is tightly inserted into the fixing hole (5), a square pin portion (12) having a substantially rectangular rod shape and having a major axis (T1) and a minor axis (T2), and the square A fixing pin (10) comprising a circular head portion (11) having a diameter (t1) larger than the major axis (T1) is provided on the upper portion of the pin portion (12), and the pressure plate body (4) is fixed. The rivet part (13) is coupled and fixed to the hole (5),
A square pin having a diameter (t2) to which the square pin portion (12) of the coupling pin (10) is coupled to the coupling plate (23) of the operating rod (21) provided in the jockey (20). A coupling hole (25) and a head insertion hole (24) having a diameter (t1) into which the head portion (11) of the coupling pin (10) is inserted are provided in the rear side of the square pin coupling hole (25). The square pin coupling hole (25) and the head insertion hole (24) are connected by a connection passage (26), and the short passage (T3) of the square pin portion (12) passes through the connection passage (26). A structure of a wrench and a jockey actuating bar having jockey actuating means, characterized in that it has a width (t3). A coupling pin is fixed to a coupling plate formed integrally with a jockey's operating rod, and a head insertion hole, a square pin coupling hole, and a connecting passage into which the coupling pin is inserted are provided through the pressure plate of the wrench. A structure of a wrench and a jockey actuating bar comprising the jockey actuating means according to claim 1. The wrench is a rod-shaped wrench (1 ′) formed by processing a metal rod, and pressurizes the end of the wrench handle (3 ′) of the wrench (1 ′) to press the pressure plate (4 ′). The structure of the jockey actuating bar of the wrench provided with the jockey actuating means according to claim 1 or 2, characterized in that it is formed.