JP3218043U - Ratchet wrench - Google Patents

Abstract

A ratchet wrench is provided.
A ratchet wrench includes a main body 10, a ratchet 20, a claw 30, a direction changing unit 40, a ring lid 50, and a top fitting ring 60. The main body includes a storage tank 11, a large arc tank 12, a small arc tank 13, and a top. An annular tank 15 is installed, a top shaft part 23, a top fitting tank 24, a bottom shaft part 25, and a convex ring 26 are installed on the ratchet. A concave arc tank 32 is installed on the claw, and the direction changing unit is rotatable. , Controls the right and left movement of the claw in the large arc tank, the ring lid is installed in the top annular tank, its inner circumference fits the top shaft part, the top fitting ring fits one end of the ratchet, restricts the ring lid The ratchet is prevented from being detached, and the convex ring is engaged with the outer edge of the storage tank bottom end opening, whereby the ratchet is not detached from the storage tank.
[Selection] Figure 1

Description

  The present invention relates to a ratchet wrench, and more particularly to a ratchet wrench that is a hand tool having a ratchet function.

The conventional ratchet wrench is provided with a head 11 and a handle 12 at both ends of the wrench body 10 as disclosed in Patent Document 1.
A storage tank 13 is installed in the head 11, and a small arc tank 15 is installed in the handle 12.
A large arc tank 14 is installed between the storage tank 13 and the small arc tank 15.
The direction change switch 50 is installed in the small arc tank 15 so as to be rotatable.
The upper localization device 60 is installed and engaged in the direction change switch 50 and is rotated and localized according to the direction change switch 50.
The fitting member 40 is installed in the large arc tank 14, the tooth portion 41 is installed on one side, the other side is coupled to the upper positioning device 60, and is interlocked with the upper positioning device 60. Move in.
The ratchet moving member 70 is installed in the storage tank 13 so as to rotate relative to the head 11, and a tooth portion 71 is installed in an annular shape around the outer periphery thereof and meshes with the tooth portion 41.

However, the above-described Patent Document 1 has the following drawbacks.
1. Since the upper and lower sides of the large arc tank 14 are sealed, a T-type cutter can only be used for forming during processing, and the processing using the T-type cutter is relatively expensive, and the arbor of the T-type cutter Is restricted by the inner peripheral surface of the first accommodating and installing portion 11, the diameter cannot be increased, and therefore it is easy to tear.
2. Since the storage tank 13 has a large and small inner diameter, the large inner diameter portion must be cut out by taking time and effort with a drill having a large diameter.

US Pat. No. 6,282,992

  An object of the present invention is to provide a ratchet wrench that can reduce processing costs.

The ratchet wrench according to the present invention comprises a main body, a ratchet, a claw, a direction changing unit, a ring lid, and a top fitting ring.
In the main body, a storage tank, a large arc tank, a small arc tank, a top annular tank are installed, a ratchet, a claw, a direction changing unit, a ring lid, a top fitting ring are installed,
The ratchet is provided with a top shaft portion, a top fitting tank, a bottom shaft portion, and a convex ring integrated with the ratchet,
A concave arc tank is installed in the nail,
The direction changing unit is rotatable, and controls the right and left movement of the claw in the large arc tank,
The ring lid is installed in the top annular tank, its inner circumference fits into the top shaft, the top fitting ring fits one end of the ratchet, restricts the ring lid, prevents the ratchet from being removed,
The convex ring engages with the outer edge of the storage tank bottom end opening so that the ratchet does not detach from the storage tank.

  Since the top of the main body facing the same direction of the storage tank, large arc tank and small arc tank of the present invention is open, processing using a drill tool or press molding can be selected, and processing options are widened. Processing is easy and saves costs.

3 is an exploded view of a ratchet wrench according to the present invention. FIG. 1 is a front view of a ratchet wrench body according to the present invention. It is sectional drawing cut | disconnected in the 3-3 position in FIG. It is a three-dimensional exploded view of the direction changing unit of the ratchet wrench according to the present invention. It is a three-dimensional combination diagram of a ratchet wrench according to the present invention. 1 is a side view of a ratchet wrench according to the present invention. It is sectional drawing cut | disconnected in the 7-7 position in FIG. It is sectional drawing cut | disconnected in the 8-8 position in FIG. 1 is a front view of a ratchet wrench according to the present invention. FIG. 10 is a cross-sectional view cut at a position 10-10 in FIG. 9; It is an enlarged view of the D position in FIG. It is a three-dimensional view from another viewing angle of some parts of the ratchet wrench according to the present invention. It is a three-dimensional exploded view of the direction changing unit according to the second embodiment of the present invention. It is a three-dimensional view of a third embodiment of the present invention. It is a three-dimensional view of the fourth embodiment of the present invention. It is a three-dimensional view of a ratchet according to the fourth embodiment of the present invention. It is a three-dimensional view of the fifth embodiment of the present invention. It is a front view of the sixth embodiment of the present invention. It is a three-dimensional view of a ratchet according to the sixth embodiment of the present invention.

[Example]
As shown in FIGS. 1 to 12, the ratchet wrench according to the present invention includes a main body 10, a ratchet 20, a claw 30, a direction changing unit 40, a ring lid 50, and a top fitting ring 60.

  A circular storage tank 11 penetrating the top bottom is installed at the working end of the main body 10.

  A large arc tank 12 is provided in a recessed shape on one side wall of the storage tank 11, the axis of the large arc tank 12 is located within the range of the storage tank 11, and the top of the large arc tank 12 is open. The bottom portion is sealed, and a sandwich angle 121 of 90 to 120 degrees is provided between the peripheral surface and the bottom surface of the large arc tank 12. A small arc tank is provided on one side wall of the large arc tank 12. 13 is installed in a depressed state.

  The top of the small arc tank 13 is open, the bottom is sealed, a conical pivot 131 is installed in the bottom of the small arc tank 13, and a trumpet is placed on the side wall of the top of the small arc tank 13. The notched tank 14 is installed in a depressed shape.

  Corresponding side walls of the cutout tank 14 are arc-shaped first contact surface 141 and second contact surface 142, respectively, and the top annular tank 15 is coaxially provided from the top step wall of the storage tank 11 to the top opening 110. It is installed in a depressed shape, and the top annular tank 15 side communicates with the large arc tank 12.

  The ratchet 20 is rotatably installed in the storage tub 11, and ratchet teeth 21 are formed on the outer periphery of the ratchet 20, and the center of the bottom end is installed in a projecting manner to the outside. The joint portion 22 is fitted into a square tank of a hand tool, and a top shaft portion 23 and a bottom shaft portion 25 are installed on the outer peripheral top and bottom stages, respectively.

  On the top shaft portion 23, a top fitting tank 24 is installed in a ring shape, and on the upper end of the bottom shaft portion 25, a convex ring 26 is installed so as to project integrally. The bottom annular portion 15 is pivoted on the top annular tank 15, and the bottom shaft portion 25 is pivoted on the bottom stage of the storage tank 11.

  The claw 30 is accommodated in the large arc tank 12 so as to be movable, and an occlusal portion 31 is installed on the front side thereof, meshed with the ratchet teeth 21, and a concave arc tank 32 is installed on the rear side. The contact surfaces 33 are installed on both sides of the rear side of the claw 30 to contact the inner peripheral surface of the large arc tank 12, and the included angle between the contact surface 33 and the bottom surface of the claw 30 is the same as the included angle 121. .

  The direction changing unit 40 is pivotally connected to the small arc tank 13 and rotates to control the right and left movement of the claw 30 in the large arc tank 12, to control the forward / reverse rotation of the ratchet wrench, and to the direction changing member 41. And a top cap 42 and an elastic part 43.

  A cylindrical block 411 is installed on the direction changing member 41, and the cylindrical block 411 is pivoted in the small arc tank 13, and a limiting tank 412 is installed on the cylindrical block 411.

  The limiting tank 412 corresponds to the concave arc tank 32, and a conical pivot portion 413 is installed at the bottom of the direction changing member 41. The pivot portion 413 is rotatably positioned at the pivot portion 131, and is pivoted. The part 131 and the pivot part 413 are pivotally provided at the center of the small arc tank 13 in the direction changing member 41.

  The lever 414 of the direction changing member 41 is accommodated in the tank 14 so as to swing, and both sides of the lever 414 have a convex arc surface shape and correspond to the positions of the first contact surface 141 and the second contact surface 142. Touch.

  The outer peripheral surface 415 and the cylindrical block 411 of the direction changing member 41 have a homogenous outer diameter, and a convex line 416 is installed at a position near the restriction tank 412 of the direction changing member 41, and the convex line 416 is small. Contacting the edge position of the arc tank 13, the length 417 of the convex line 416 is larger than the diameter of the limiting tank 412, and the convex line 416 limits the maximum angle of rotation of the direction changing member 41 at the position of the small arc tank 13. Is possible.

  After the top cap 42 and the elastic part 43 are combined with each other, the top cap 42 and the elastic part 43 are accommodated in the restriction tank 412. The elastic part 43 is accommodated between the top cap 42 and the restriction tank 412. The ring lid 50 is accommodated in the top annular tank 15.

  An inner periphery 51 of the ring lid 50 is fitted to the top shaft portion 23, and a convex portion 520 is provided in a protruding shape on one side of the outer periphery, and an arcuate edge 52 is recessed in the end of the convex portion 520. Installed, the edge 52 is fitted to the outer peripheral surface 415, the ring lid 50 presses against the convex line 416 and the bottom 16 of the top annular tank 15, and the ring lid 50 is accommodated corresponding to the shape of the top annular tank 15. Installed.

  The top fitting ring 60 has a C shape and has elasticity, is accommodated in the top annular tank 15, fits in the top fitting tank 24, adheres closely to the ring lid 50, restricts the ring lid 50, and releases the ratchet 20. prevent.

  The convex ring 26 is located outside the storage tank 11 and engages with the outer edge 18 of the bottom end opening 17 of the storage tank 11, whereby the ratchet 20 is limited to the ring lid 50 and the top fitting ring 60 and is stored. It is pivotally installed in the tank 11.

  As shown in FIG. 6, the occlusal portion 31 and the ratchet teeth 21 mesh with each other, the direction changing unit 40 is pivoted on the small arc tank 13, and the top cap 42 receives the elasticity of the elastic part 43, and the concave arc of the claw 30 Entering the tank 32 position, the lever 414 is moved, whereby the direction changing unit 40 rotates, restricting the left and right movement of the claw 30 in the large arc tank 12, and controlling the forward and reverse rotation of the ratchet wrench.

  As shown in FIG. 8, the length 417 of the convex line 416 is larger than the diameter of the limiting tank 412, and when the direction changing unit 40 rotates and the lateral movement of the claw 30 in the large arc tank 12 is controlled, 416 contacts the edge position of the small arc tank 13 and restricts the maximum rotation angle of the direction changing member 41.

  As shown in FIG. 13, in the second embodiment of the present invention, the direction changing member 41 is not provided with the convex line 416, and the ring lid 50 contacts the top cap 42, thereby the direction changing unit 40. Is pivoted at the position of the small arc tank 13.

  As shown in FIG. 14, a perforation 101 is installed at the end of the handle 100 at one end of the main body 10, and a plurality of concave patterns 102 are installed on the mutually symmetrical top bottom surfaces, and hooked by the perforations 101.

  As shown in FIGS. 15 and 16, the first fitting tank 200 and the second fitting tank 201 are coaxially arranged in the center of the top end of the ratchet 20, each having a polygonal tank shape, and having different inner diameter sizes. Then, screwing members of different standards are fitted and installed.

  As shown in FIG. 17, the main body 10 and the handle 100 are pivotally connected to each other, and the angle is adjusted as necessary, and an open wrench structure 103 is installed at the opposite end of the handle 100.

  As shown in FIGS. 18 and 19, the first fitting tank 220 and the second fitting tank 221 that are coaxial, have polygonal tank shapes, and have different inner diameter sizes are disposed in the center of the top end of the ratchet 20. Then, the third fitting tank 222 and the fourth fitting tank 223 having different inner diameter sizes are respectively provided in depressions on one side wall of the first fitting tank 220 and the second fitting tank 221, and screws having different standards are installed. Each joint member is fitted and installed.

In summary, the present invention has the following effects.
1. Since the top portions of the large arc tank 12 and the small arc tank 13 facing in the same direction are open, drilling is easy and cost can be reduced.
2. Since the storage tank 11 has a penetrating shape, there is no need to control the processing depth during cutter processing.
3. Since the storage tank 11, the large arc tank 12, and the small arc tank 13 can be processed with the same equipment, there is no accumulation of tolerances.
4. Since the storage tank 11, the large arc tank 12, and the small arc tank 13 have the same upper end open, the main body 10 can be formed by a primary press.
5. Since the main body 10 can select drilling or press molding as necessary, various processing methods can be selected.
6. Since the ratchet is restricted by the lid 50 and the top fitting ring 60 and is accommodated in the accommodating tank 11, it can be easily removed / attached.
7. As shown in FIG. 4, the length 417 is larger than the diameter of the limiting tank 412, and the convex line 416 contacts the edge of the small arc tank 13, so that the maximum rotation angle of the direction changing member 41 can be limited, The collision of the top cap 42 with the edge of the small arc tank 13 can be avoided.
8. Since both sides of the lever 414 come into contact with the first contact surface 141 and the second contact surface 142, the maximum angle of rotation of the direction changing member 41 can be limited.
9. Since the direction changing member 41 is pivoted on the small arc tank 13 and the outer peripheral surface 415 and the edge 52 are pivoted, the pivoting of the direction changing member 41 is firm.
10. Since the pivot part 413 is installed at the pivot part 131, it is easy to pivot the direction changing member 41 to the center of the small arc tank 13.
11. Since the top shaft portion 23 is pivoted on the outer peripheral surface 51 and the bottom shaft portion 25 is pivoted on the storage tank 11, the ratchet 20 is firmly pivoted.

  The present invention has the novelty that is a requirement for utility model registration, has sufficient progress compared to similar products of the past, has high practicality, meets the needs of society, and has a very high industrial utility value. large.

DESCRIPTION OF SYMBOLS 10 Main body 100 Handle 101 Perforation 102 Concave pattern 103 Opening wrench structure 11 Storage tank 110 Top opening 12 Large arc tank 121 Narrow angle 13 Small arc tank 131 Axis part
14 Missing tank 141 First contact surface
142 second contact surface 15 top annular tank 16 bottom 17 bottom end opening 18 outer edge 20 ratchet 21 ratchet teeth 22 fitting part 220 first fitting tank 221 second fitting tank 222 third fitting tank 223 fourth fitting Tank 23 Top shaft part 24 Top fitting tank 25 Bottom shaft part 26 Convex ring 30 Claw 31 Occlusal part 32 Concave arc tank 33 Contact surface 40 Direction changing unit 41 Direction changing member
411 Cylinder block 412 Restriction tank 413 Pivoting part 414 Lever 415 Outer peripheral surface 416 Convex line 417 Length 42 Top cap 43 Elastic part 50 Ring lid 51 Inner circumference 52 Defect 60 Top fitting ring

Claims (9)

The ratchet wrench has a main body, ratchet, claw, direction changing unit, ring lid, top fitting ring,
The main body is provided with a circular storage tank penetrating the top bottom, and a large arc tank is provided in a recessed shape on one side wall of the storage tank, and the center of the large arc tank is the range of the storage tank. A small arc tank is disposed in a recessed manner on one side wall of the large arc tank, and the same arcuate top portions of the large arc tank and the small arc tank are open, A pivotal portion is installed at the bottom of the small arc tank, and a trumpet-shaped notched tank is installed in a recessed shape at the opening position near the top end of one side wall of the small arc tank. A first contact surface and a second contact surface are respectively provided, and a top annular tank is coaxially disposed from the top step wall to the opening of the containing tank, and the top annular tank one side and the large arc are disposed. The tank communicates with each other, and from the bottom wall step of the storage tank to the opening, the bottom ring tank is coaxially installed in a depressed shape,
The ratchet is rotatably installed in the storage tub, ratchet teeth are formed in an annular shape on the outer periphery, a fitting portion is installed at one end, and the top and bottom steps opposite the ratchet Is a top shaft portion and a bottom shaft portion, respectively, a top fitting tank is annularly installed at the top shaft portion, and a convex ring is integrally installed at the bottom shaft portion end. The storage tank and the top annular tank are pivoted, and the bottom shaft portion is pivoted to the storage tank and the bottom ring tank,
The claw is installed on one side of the large arc tank so as to be movable, an occlusal part is installed on the front side, the occlusal part and the ratchet teeth mesh with each other, and at the rear center of the claw, A concave arc tank is installed, and a contact surface is installed on each side, the contact surface is in contact with the inner peripheral surface of the large arc tank,
The direction changing unit is installed in the small arc tank so as to be rotatable, controls left and right movement of the claw in the large arc tank, controls forward and reverse rotation of the ratchet wrench, and changes direction A cylindrical block is installed on the direction changing member, the cylindrical block is pivoted in the small arc tank, and a restriction tank on the cylindrical block is provided in the concave arc tank. Correspondingly, a pivot portion is installed at the bottom of the direction changing member, the pivot portion is rotatably installed at the pivot portion, and a lever is installed at the direction changing member, The lever is installed in the notch so as to swing, and both side walls of the lever each have a convex arc surface shape and are in contact with each other corresponding to the first contact surface and the second contact surface, and the direction changing member The outer peripheral surface and the cylindrical block have a homogenous outer diameter,
The top cap and the elastic part are combined with each other and then installed in the restriction tank, the elastic part is installed between the top cap and the restriction tank, and the top cap is elastic of the elastic part. To enter the concave arc tank,
The ring lid is installed in the top annular tank and is in close contact with the bottom of the top annular tank. The inner circumference of the ring lid is fitted to the top shaft part and pivoted to each other. The projecting portion is installed in a protruding shape, and an arc-shaped notched edge is installed in a recessed shape at the end of the convex portion, and the notched edge is fitted to the outer peripheral surface of the direction changing member,
The ratchet wrench characterized in that the top fitting ring fits into the top fitting tank and contacts the ring lid to restrict the ring lid to prevent the ratchet from being detached. Between the peripheral surface and the bottom surface of the large arc tank, with a included angle of 90-120 degrees,
The ratchet wrench according to claim 1, wherein the included angle and the included angle between the contact surface and the bottom surface of the claw are the same.   The ratchet wrench according to claim 2, wherein the included angle is 90 to 100 degrees.   The ratchet wrench according to claim 1, wherein the fitting portion has a square head shape of a certain standard and is exposed to the outside of the main body. At one end of the main body, a handle is installed,
The ratchet wrench according to claim 1, wherein a plurality of concave patterns are respectively formed on top and bottom surfaces symmetrical to each other of the handle end. The fitting portion has a polygonal tank shape, and the fitting portion includes a coaxial first fitting tank and a second fitting tank,
The ratchet wrench according to claim 1, wherein the first fitting tank and the second fitting tank have different inner diameter sizes.   On one side wall of the first fitting tank and the second fitting tank, a third fitting tank and a fourth fitting tank having different inner diameter sizes are respectively set in a depressed shape, and screw members having different standards are respectively provided. The ratchet wrench according to claim 1, wherein the ratchet wrench is fitted and installed. The main body and one end of the handle are pivoted to each other,
The ratchet wrench according to claim 1, wherein an opposite end of the handle has an open wrench structure. A convex line is installed at a position near the restriction tank of the direction changing member,
The ratchet wrench according to claim 1, wherein the convex line is in contact with an edge of the small arc tank, and a length of the convex line is longer than a diameter of the restriction tank.

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