JP2017001173A - Ratchet wrench - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ratchet wrench capable of grasping a bolt or a nut having each different specification in a stepless way without using another component, and performing selection of a normal or reverse state, and a tightening/loosening work by continuous rotation, concerning a ratchet wrench.SOLUTION: There is provided a ratchet wrench having a simple cylindrical shape, in which a socket is used as an adjustment mechanism corresponding to a bolt or a nut having each different specification, a bearing stand and an opening/closing arm are movably joined together, and which is constituted of a guide plate for supporting an opening/closing adjustment range and a dividing socket for grasping an object, and in which they are covered with a case and a rotary ring for adjusting opening/closing, and a folding lever containing a ratchet mechanism is provided.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ratchet wrench, which relates to a ratchet wrench capable of capturing bolts and nuts of different standards in a stepless manner without using other parts, selecting forward and reverse, and tightening by continuous rotation. .

  The ratchet wrench that is currently used is selected in a form suitable for various work contents, and is tightened with bolts and nuts.

  The conventional ratchet wrench has various forms such as a socket type with different standards at the top of the main body, a single unit type with front and rear, and a box set type with a variety of sockets.

  The forms divided into the single type and the box set type shown in FIG. 2 are further classified into various types, and the shapes are changed and used in various industrial fields.

  The single unit shown in Fig. 2 is now improved in terms of functionality and simplicity. Among them, the socket standards that have evolved into four types are convenient, but on the other hand, depending on the work content, the head contacts the surroundings and the socket part reaches the object. There was a problem that didn't arrive. The type with a socket at the bottom of the lever has similar problems, and the lever is difficult to rotate. The box set type has a countless response to each work. However, the box set itself was heavy, and it took too much time and effort to carry around, and setting the ratchet body and other accessories. What form to select is also a problem related to the work form of a person who wears a tool and works with a person who carries a large number of tools on a carriage or the like.

JP-A-8-252774 Japanese Patent Laid-Open No. 21-255269

  Internet Webic Shopping 2015 4 Pro Tools Socketless Wrench TOOL383

  As a problem to be solved, the single type ratchet wrench is somewhat poor in a wide range of workability, and is frequently used in limited situations. The box set type is free from weight and settings.

  In order to achieve the above object, the present invention is a single cylindrical type, and the socket is an adjusting mechanism capable of accommodating bolts and nuts of different standards, and the bearing base and the open / close arm are movablely connected to support the open / close adjustment range. The main feature is that it is composed of a guide plate and a split socket that catches an object, and is covered with a case and a rotating ring that adjusts opening and closing, and a folding lever including a ratchet mechanism is provided.

  As is clear from the above description, the present invention has the following effects. When the bearing stand and the open / close arm are movably joined, the tip can be adjusted from the minimum hexagonal state as shown in FIG. 4 to the maximum hexagonal state. Therefore, the opening and closing difference can be set to a stepless bolt and nut. The split socket shown in FIG. 3 can be applied to bolts and nuts of different standards in a stepless manner while maintaining the tip angle at 120 degrees. The tightening strength for catching the bolts and nuts of the split socket is reflected in the split socket with the fixing ring on the outer periphery of the case and the rotary screw of the rotary ring both having a screw structure.

1 is a perspective view according to an embodiment of the present invention. It is a perspective view which shows the conventional form. FIG. 4 is an exploded view according to an embodiment of the present invention. It is an operation | movement conceptual diagram by one Example of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a single-piece type and a box-set type ratchet wrench, which are conventional representative forms. FIG. 3 is an exploded view according to an embodiment of the present invention, and FIG. 4 is an operation conceptual diagram according to the embodiment of the present invention.

  The ratchet wrench according to one embodiment of the present invention is movably joined to the bearing base 11 on the basis of the opening / closing arm 10 shown in FIG. 3, the case 21 is joined from the bearing base 11 side, and the guide plate 20 and the split socket from the opposite direction. 13, and further includes a rotating ring 30, a ratchet ring 40, and a lever 50.

  A square taper 12 is formed at the tip of the opening / closing arm 10 at 120 degrees, and the divided sockets combined therewith also have the same angle. A rotating screw 31 provided in the rotating ring 30 has a screw structure with the fixing screw 22 of the case 21, and the adjusting socket 32 opens and closes the divided socket. The adjustment ring 32 has an advantage that when the minimum object is captured, the adjustment ring 32 is moved forward by right rotation so as not to interfere with the surroundings, and when the maximum object is captured, the divided socket 13 is reinforced so as to be wrapped.

  The divided socket 13 for capturing an object has an advantage that the tightening torque is stabilized because the opening / closing arm 10 and the case 21 are integrated by the operation of the rotating ring 30 by hand. The shape of the main body is short, long, thin, thick, etc. is also an advantage that the angle of the square taper 12 and the length, material, and shape of the divided socket 13 are small and large.

  The bearing stand 11 according to FIG. 3 has a thick disc shape to maintain its strength and is extended with a steel tube so as to be movable joined to the open / close arm 10. Bearing grooves 15 are provided at intervals of 120 degrees from the center, and the cut width is preferably about 60% of the arm body diameter. Further, an arm body cut into a plane so as to mesh with it is fitted, a hole for penetrating and supporting is provided at the side, and one side is tapped. The bearing stand 11 is tapped and detented for later joining to the case 21.

  The open / close arm 10 supported by the bearing stand 11 is supported between the arms so as to support each other by an opening spring 14 shown in FIG. 3 and open when the rotating ring 30 is loosened. The adjusting ring 32 of the rotating ring 30 is provided to amplify the torque that pushes the divided socket 13 evenly. In consideration of the dimensions of the opening / closing arm 10 from the bearing base 11 to the end of the split socket 13, it is an important point for equally tightening the object, acting as a force point of the lever principle, by dividing 360 degrees into three parts.

  The open / close arm 10 shown in FIG. 3 is joined by the case 21 and the guide plate 20 from both ends, and each divided socket 13 is attached to the left end portion. Each socket is designed to prevent torsion, and can be integrated with the arm, molded, meshed with the arm tip, and bolted. In addition, when each end is secured at 120 degrees and the width of one side is minimized and the nut is M10, the maximum is preferably in the range of about M17, and various classes can be considered depending on the standard width.

  In addition, the contact portion of the open / close arm 10 that slides on the guide plate 20 is provided with a partially planar induction steel 16 in consideration of smooth movement and prevention of torsion. As a load reducing measure at the time of rotation, the guide plate 20 is provided with a rotating steel 24 in a well-balanced circumference, and is engaged with the tip of the case 21 and tightened with bolts.

  The rotating ring 30 includes a rotating screw 31 for opening / closing the split socket 13 via the opening / closing arm 10. It is about three rotations from the opening start position to the closing stop position, and is completed by a mechanism of rotating clockwise according to the fixing screw 22, and moving from closing to opening moves in the opposite counterclockwise direction. In addition, it is desirable to cover the outer periphery of the rotating ring 30 with an uneven slip preventing material in consideration of workability. After the rotary ring 30 is accommodated on the outer periphery of the case 21, the ratchet ring 40 is provided from the right side, and the lever 50 integrated with the movable shaft 52 is placed in various places depending on the purpose of use such as folding storage and tightening work by the bolt plunger 51. It is a lock mechanism that stops at, and is covered with a non-slip material cover.

  The ratchet ring 40 shown in FIG. 3 includes a switching button 41 on the left and right in a state in which the switching button 41 can be slid up and down to enable forward and reverse rotation. Inside, one side of the ratchet gear 23 and the switching bar 42 left and right protruding ends is selected and meshed alternately, and by operating the switching button 41, the slide spring 43 moves to the left and right above the switching bar 42, forward and reverse This is how it is established. In addition, a drive 25 is provided at the right end of the case 21 so that the divided socket 13 can be lightly rotated in case there is no torque when rotating.

  A ratchet wrench according to an embodiment of the present invention will be described with reference to FIG.

  When tightening bolts and nuts to the terminal block, etc., the lever 50 is raised from the storage position to the tightening and loosening position, and the rotation ring 30 is rotated counterclockwise to the size of the bolt in advance and loosened, and the divided socket 13 is opened slightly wider To. After confirmation, the split socket 13 is fitted to the bolt, and the rotary ring 30 is tightened while rotating clockwise, and the lever 50 is further tightened while turning slightly to the left and right so as to match the bolt angle.

  Looking at the basic flow, the rotating ring 30 and the switching button 41 are in a causal relationship of anti-object, and when the rotating ring 30 is loosened by rotating counterclockwise, the switching button 41 needs to be rotated forward in the clockwise direction. When the so-called rotating ring 30 is tightened clockwise, it is basically switched to reverse rotation that is counterclockwise.

  After the divided socket 13 catches the bolt, the forward rotation is selected by the switching button 41. At this time, there is a time when torque is not required depending on the length of the bolt, and until now the reciprocation of the ratchet was repeated. In this case, the drive 25 was moved by lightly turning like a general driver, and the torque was felt. At this point, the lever 50 can be finally tightened from an appropriate angle in the forward direction.

  Various working environments, such as surrounding equipment and terminal block partition width, may interfere with the progress of the tightening operation, but the tip is easy to reach even in the back due to the cylindrical shape. The outer width of the can be expanded and contracted to reduce the interference surface such as contact with the surroundings.

  As can be seen from the tightening work procedure, when the relationship between the rotating ring 30 and the switching button 41 is taken into consideration, the removal work can also be in an opposite operation. This is the operation of the switch button 41, and the rotary ring 30 is turned to enter the setup for opening the divided socket 13. However, the drive 25 mentioned above is also present. Although it depends on the work scene, the rotating ring 30 when the drive 25 is held is that the divided socket 13 can be opened and turned regardless of the closing direction. As a result, the bolt can be grasped based on both the removal work and the usage, and the work can be completed by reversing.

  The present invention is pursuing convenience and cost reduction for a construction site where a number of completed man-hours are shortened, a severe work place where vehicles and the like can park and stop at a short distance, and an environment where access to and from is restricted.

DESCRIPTION OF SYMBOLS 10 Opening / closing arm 11 Bearing stand 12 Square taper 13 Split socket 14 Opening spring 15 Bearing groove 16 Guide steel 20 Guide plate 21 Case 22 Fixing screw 23 Ratchet gear 24 Non-rotating steel 25 Drive 30 Rotating ring 31 Rotating screw 32 Adjustment ring 40 Ratchet Ring 41 switching button 42 switching bar 43 slide spring 50 lever 51 bolt plunger 52 movable shaft

Claims (8)

  A single cylindrical type socket with an adjustment mechanism that supports bolts and nuts of different standards, consisting of a guide plate that supports the open / close adjustment range by moving the bearing base and the open / close arm, and a split socket that captures the object. The ratchet wrench is provided with a folding ring that includes a ratchet mechanism, covering them with a rotating ring that opens and closes the case.   Bearing grooves that serve as fulcrum points of the lever principle are provided at intervals of 120 degrees from the center of the bearing base, and the tip of each arm cut in a plane is movable joined, and the base of the split socket tip is tilted inward at a slight angle when fully open. A ratchet wrench comprising a square taper and an induction steel for preventing twisting in each arm.   The opening provided at 120 ° intervals on the left end of the case is a length that determines the stepless width of the split socket according to the proportion of the dimension that the arm protrudes, and an opening / closing arm provided with an opening spring for opening legs is provided between the arms. A ratchet wrench characterized by comprising a guide plate including a star-shaped guide hole that is built in together with a bearing stand and through which an arm slides, and a rotating steel that reduces rotational load.   At the left end of the open / close arm, a split socket that divides the conical shape, which is the point of action of the lever principle, into three equal parts is provided, the tip shape has an angle of 120 degrees each, and the socket width that covers a certain range from small to large The ratchet wrench is characterized in that the lateral cut angle is within the adjustment ring so that the opposite side is within the adjustment ring with the minimum point at the tip of the split socket as the basic point.   A fixed screw that guides the rotating screw in the rotating ring outside the case is provided from the third opening to the vicinity of the ratchet ring. A characteristic ratchet wrench.   At the left end of the rotating ring with a rotating screw inside, an adjustment ring that is the power point of the lever principle is provided, and the ring diameter has an inner diameter that stops at about 60% from the tip when the split socket is set to the minimum, A ratchet wrench characterized by being connected to the inside of the rotating ring in a tapered shape and with a non-slip on the outer periphery.   A ratchet wrench characterized in that a ratchet gear and a switching bar mesh with each other, and a slide button provided on the upper side of the switching bar can be selected with a switching button provided on the left and right sides of the ratchet ring and is continuously rotated.   The lever based on the movable shaft is provided with a bolt plunger that is a locking mechanism that stops from the retracted position to the tightening work position, maintains dimensions that take into account the size standards of the split socket, and folds when carrying or moving The ratchet wrench is characterized by having anti-slip on the outer periphery.

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