KR20160054056A - Openable and closable ratchet wrench - Google Patents

Openable and closable ratchet wrench Download PDF

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Publication number
KR20160054056A
KR20160054056A KR1020140140575A KR20140140575A KR20160054056A KR 20160054056 A KR20160054056 A KR 20160054056A KR 1020140140575 A KR1020140140575 A KR 1020140140575A KR 20140140575 A KR20140140575 A KR 20140140575A KR 20160054056 A KR20160054056 A KR 20160054056A
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KR
South Korea
Prior art keywords
head
opening
nut
closing port
wrench
Prior art date
Application number
KR1020140140575A
Other languages
Korean (ko)
Inventor
정길
Original Assignee
정길
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 정길 filed Critical 정길
Priority to KR1020140140575A priority Critical patent/KR20160054056A/en
Publication of KR20160054056A publication Critical patent/KR20160054056A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/28—Spanners; Wrenches with adjustable jaws the jaws being pivotally movable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/28—Spanners; Wrenches with adjustable jaws the jaws being pivotally movable
    • B25B13/34—Arrangements for locking the jaws
    • B25B13/36—Arrangements for locking the jaws by ratchet action

Abstract

An opening and closing type ratchet wrench is disclosed. The opening and closing type ratchet wrench, according to an embodiment of the present invention, simplifies a work for installing a wrench in a bolt head or a nut as one side thereof can be opened to allow the bolt head or the nut to be laterally inserted thereinto, prevents damage to the wrench even if large torque is applied to the wrench by uniformly transferring the torque to the whole part of the bolt head or the nut as the jaw (130) of the wrench grips and fixes the bolt head or the nut at an angle of 360 degrees, and prevents the corner parts of the bolt head or the nut from being pressed during a process for tightening and untightening the bolt head or the nut.

Description

[0001] Openable and closable ratchet wrench [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ratchet wrench and, more particularly, to a ratchet wrench which is constructed such that a part of a head of a ratchet wrench can be opened and closed so that a wrench can be inserted in the lateral direction of the bolt or nut.

In general, various tools are used to tighten and unscrew bolts and nuts, and spanner is widely used as a typical tool.

Spanners are also called wrenches, but there are many types of spanners, but open spanners and closure spanners are basic types.

Open wrenches are very easy to use because they are open on one side to insert bolt heads or nuts. On the other hand, strong bending stress acts on the jaws during use, so if a large torque is applied, the wrench will come off, There are easy disadvantages.

The closure wrench is a circular molded form to insert a wrench in the axial direction of the bolt head or nut. It has the advantage of tightening or loosening the bolt or nut by applying a large torque, while the spanner in the axial direction of the bolt head or nut So that it is very inconvenient to use.

Due to such a problem, an opening spanner is formed on one side of the spanner and a closing spanner is formed on the other side. By fastening the bolt or nut with an opening spanner, the bolt or nut can be firmly tightened by applying a strong torque using a closing wrench Combination wrenches are widely used.

After the bolt head or nut is inserted, a ratchet spanner (hereinafter referred to as a "ratchet wrench"), which can be tightened and unfastened continuously by applying torque only in one direction without removing the wrench from the bolt head or nut to be removed, So as to increase the work convenience of the operator.

However, the ratchet wrench of the combination wrench also has a narrow working space in which the bolt head or nut is hard to insert the ratchet wrench in the axial direction, or a ratchet wrench is inserted from the end of the long rod to the nut when the nut is positioned at the middle point of the long rod It is very inconvenient.

In order to solve such a problem, Korean Patent Laid-Open Publication No. 10-2010-0020442, "retractable ratchet wrench" is constituted such that a part of the ratchet wrench can be opened and closed as shown in Fig. 1 and a ratchet wrench The present invention proposes a retractable ratchet wrench which can be inserted.

However, since the ratchet wheel 200, which applies torque to the bolt head or the nut, is not formed in a circular shape, the ratchet wrench applies a torque only to a part of the bolt head or the nut, so that when a large torque is applied for tightening or loosening, The bolt head or the angled portion of the nut is broken.

Korean Intellectual Property Office, Laid-Open Patent Application No. 10-2010-0020442, "Retractable Ratchet Wrench"

SUMMARY OF THE INVENTION It is an object of the present invention to provide an openable and closable ratchet wrench which can be inserted into a side wall of a bolt head or a nut and is very convenient to use.

In addition, when the ratchet wrench is used to tighten or loosen the bolt, even when a large torque is applied to the bolt head or all portions of the nut, the wrench is not broken and the angled portion of the bolt head or the nut is not broken. Is an object of the present invention.

In order to achieve the above object, the openable ratchet wrench according to the present invention includes a body 101 corresponding to a wrench handle, a head 110 formed on one side of the body 101 and having an inner surface opened in a donut shape, An opening and closing port 120 for partially opening the head 110 and opening and closing the head 110 while one side is connected to the hinge 131 on the body 101 or the head 110 to rotate around the hinge 131, A plurality of ratchet gears 132 continuous to the outer surface are formed and a predetermined number of the ratchet gears 132 are inserted into the head 110 and the opening and closing port 120 to contact both sides of the adjacent tank 130, And a ratchet gear 132 formed on an outer surface of the jaw 130 inside the body 101 and adapted to rotate with respect to the rotation of the jaw 130. [ And a pair of teeth 112 for restricting the direction.

It is preferable to further include a fastening means for preventing the opening and closing port 120 from being opened arbitrarily by fastening the opening and closing port 120 to the head 110 when the opening and closing port 120 for opening and closing the head 110 is closed .

Preferably, a guide groove 114 is formed in the head 110 and the opening and closing port 120, and a guide protrusion 137 is formed on the outer surface of the barrel 130, Can be inserted into the guide groove 114 of the head 110 and the opening and closing port 120 so that the tank 130 can stably slide inside the head 110 and the opening and closing port 120.

The opening and closing port 120 is supported by a spring 134 that is resiliently supported on the body 101 inside the body 101 so that the opening and closing port 120 is closed by the spring force of the spring 134 can do.

Preferably, the tapered tapered surface 133 is formed at both inner surfaces of the tank 130 so that the tapered surface 133 of the adjacent tank 130 is formed with a groove into which the edge of the bolt head or nut is inserted. Can be configured.

Further, a groove 135 into which a bolt head or a nut is inserted may be further formed in the inner surface of the tub 130.

Preferably, the upper surface, the lower surface, or the upper and lower surfaces of each of the jaws 130 are formed with elastic protrusions 136 which are supported by internal springs and protrude outward from the outer surface and can be inserted into the grooves, And the locking protrusions 136 are inserted into the upper surface and the lower surface of the opening 110 of the head 110 and the upper and lower surfaces of the opening 120 to form the locking groove 113, It is possible to arrange such that the jaws 130 do not fall out arbitrarily.

The ratchet wrench of the present invention constructed as described above is constructed so that one side can be opened so that the bolt head or the nut can be inserted into the side, so that it is very easy to mount the wrench on the bolt head or the nut.

In addition, since the wrench of a wrench holds and fixes a bolt head or a nut at a 360 ° angle, a torque is uniformly transmitted to all parts of the bolt head or the nut, so that even if a large torque is applied, the wrench is not broken, The edge of bolt head or nut is not broken.

1 shows a conventional openable and closable ratchet wrench
2 is a perspective view showing an openable and closable ratchet wrench according to the present invention;
3 is a view showing a state in which a door of a ratchet wrench is closed;
4 is a view showing a state in which the opening / closing port of the ratchet wrench is opened;
5 is a partial cross-sectional perspective view showing a main portion of the ratchet wrench;
6 and 7 are plan sectional views showing the internal structure of the ratchet wrench.
8 is a perspective sectional view showing a joining structure of the jaw and the head.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the present invention and the accompanying drawings, wherein like reference numerals refer to like elements.

It is to be understood that when an element is referred to as being "comprising" another element in the description of the invention or in the claims, it is not to be construed as being limited to only that element, And the like.

Hereinafter, an example in which the openable ratchet wrench is implemented will be described with reference to specific embodiments.

As shown in FIG. 2, the openable ratchet wrench according to the present invention is formed with a ratchet wrench of the present invention on one side of a body 101 serving as a handle of a combination wrench. Although not shown in the figure, an opening spanner is formed on the other side of the body 101.

The ratchet wrench includes a head 110 formed in a circular shape and having an opening 120 through which a part of the head 110 is opened to be opened and closed and one side of the opening and closing port 120 is connected to a head 110 and a hinge 131 3 and 4, the door 120 is rotated around the hinge 131 and closed.

The opening and closing port 120 may be hinged to the head 110 but it is preferable that the hinge 131 is fastened to the body 101 such that the opening and closing port 120 is completely opened.

As shown in FIG. 4, when the door 120 is opened, one side of the head 110 is opened, and a bolt head or a nut can be laterally inserted into the head 110 as an open portion of the head 110. When the door 120 is closed, the door 120 and the head 110 are circular as shown in FIG.

A protrusion is formed in the opening and closing port 120 and a groove is formed in the head 110 so that the opening and closing port 120 is fixed to the head 110 when the opening and closing port 120 is closed, It is preferable that the fastening means is constituted so that the opening / closing port 120 is not opened when fastening or loosening.

As the fastening means, various known fastening means can be used.

A bar 130 for holding and fixing a bolt head or a nut is inserted into the head 110 to slide along the inside of the head 110.

The jaw 130 is inserted into the head 110 and the opening and closing port 120 and is divided into a predetermined number so as to grasp the head or the nut of the bolt at a 360 ° angle so that the jaws 130 are separated from the head 110, 120).

The tank 130 inserted into the head 110 and the opening and closing port 120 is formed such that the inner surface of the tank 130 protrudes into the head 110 and the opening and closing port 120 and the outer surface of the tank 130, The lower surface is in contact with the head 110 and the opening / closing port 120.

In the embodiment of the present invention, as shown in FIG. 6, the trough 130 divided into eight parts is inserted into the head 110 and the opening / closing part 120 to hold the bolt head and the nut at 360 degrees.

The tapered surface (133) is formed at both ends of the inner surface of the tank (130) holding the bolt head and the nut, and the tapered surface 133 are in contact with the tapered surface 133 of the adjacent trough 130 to form a groove so that an angled corner of the bolt head or nut is inserted into the groove so as to apply torque to be loosened or tightened.

The jaw 130 is not fastened to any adjacent jaws 130 by any fastening means. When the door 120 is opened, the jaw 130 inside the door 120 is physically separated from the jaw 130 inside the head 110 so that the jaw 130 and the jaw 130 are not connected by the fastening means, The jaws 130 are inserted into the head 110 and the opening / closing port 120 while being in contact with the adjacent jaws 130.

5, a ratchet gear 132 is continuously formed on the outer surface of the jaw 130, a guide protrusion 137 is formed on the upper surface, the lower surface, or the upper and lower surfaces of the jaw 130, The protrusion 137 is inserted into the guide groove 114 formed in the inside of the head 110 to slide inside the head 110.

At this time, the internal structure of the opening / closing port 120 formed on one side of the head 110 is the same as the internal structure of the head 110 shown in Fig.

A ratchet gear 132 is continuously formed on the outer surface of the tub 130 to serve as a ratchet wheel.

As shown in FIG. 6, a space is formed in the body 101 to communicate with the inside of the head 110, and a pair of teeth 112 is formed in the body internal space. The pair of teeth 112 are in contact with the ratchet gear 132 formed on the outer surface of the jaw 130 so that the jaw 130 can rotate in only one direction.

The tooth 112 is rotated by a control lever 111 formed outside the body 101 and a tooth 112 of a pair of teeth 112 is inserted into a ratchet gear 132 formed on the outer surface of the jaw 130 So that the rotational direction of the jaw 130 is restrained.

Since the rotational direction restraint of the ratchet wrench is well known in the art, a detailed description thereof will be omitted.

The operation of the ratchet wrench of the present invention constructed as described above will be described.

As shown in FIG. 4, after the opening / closing port 120 is opened to open one side of the head 110, the bolt head or nut is inserted into the head 110 from the side of the wrench and the opening / closing port is closed.

6, the spring 134 is inserted into the opening 120 of the body 101 and the hinge 131 of the head 110, and the spring 134 is inserted into the body 101 The opening and closing port 120 can be closed by the elastic force of the spring 134 when the opening and closing port 120 is opened and the bolt head and the nut are inserted.

As described above, by providing the spring 134 and elastically supporting the opening / closing port 120, the opening / closing port can be easily opened / closed, and the opening / closing port 120 can be prevented from being opened arbitrarily during the operation of tightening or loosening.

When a bolt head or nut is inserted into the head 110 and the opening and closing port 120 is closed, the corner portion of the bolt head or nut is inserted into the groove formed by the tapered surfaces 133 of the respective tanks 130, The pair of jaws 130 coupled to the teeth 112 are rotated by pushing the adjacent jaws 130 to rotate the jaws 130 To rotate the bolt head or nut gripped by the bolt.

Thereafter, as with conventional ratchet wrenches, bolt heads or nuts can be tightened or loosened continuously without the need to remove and reinsert.

In an embodiment of the present invention, a tapered tapered surface 133 is formed on both sides of each of the tanks 130 as shown in FIG. 5 in order to allow the taper 130 to grip a bolt head or a nut. The grooves 135 may be formed in the center of the inner surface of the tub 130 of FIG.

As described above, the jaws 130 inserted into the head 110 and the opening and closing port 120 are moved in the head 110 and the opening and closing port 120 in a state of being physically contacted with the adjacent jaws 130 without being fastened by the fastening means. It is possible to slide out the jaws 130 inside the head 110 or the opening and closing port 120 when the opening / closing port 120 is opened.

8, elastic projections 136 are formed on the top, bottom, top, and bottom surfaces of each of the tanks 130 and the inner surface of the head 110, the inner surface of the door 120, And an engaging groove 113 into which the elastic protrusion 136 is inserted is formed on the lower surface.

Although not shown in the figure, the elastic protrusions 136 are elastically supported and supported by springs (not shown) in the upper, lower, upper, and lower surfaces of the respective tanks 130.

When the jaw 130 is restrained by the tooth 1120 and the jaw 130 rotates together with the head 110 when the bolt head or nut is rotated by the ratchet wrench, the head 110 and the jaw 130 rotate interlockingly The elastic projections 136 of the jaws 130 do not move up and down.

However, when the wrench 130 is rotated in the opposite direction when the wrench or bolt head or nut is unscrewed or unscrewed or when the wrench is withdrawn for termination, the jaw 130 is not constrained by the tooth 112, Only the head 110 rotates and returns.

At this time, the elastic protrusions 136 formed in the respective tanks 130 are inserted into the locking grooves 113. In this state, the elastic protrusions 136 are inserted into the head 110 and the opening / Even if the door 120 is opened, the door 130 inside the head 110 and the opening / closing port 120 does not flow out.

The ratchet wrench according to the present invention configured as described above is constructed so that one side can be opened so that the bolt head or the nut can be inserted in the side direction. Thus, it is very easy to mount the wrench on the bolt head or nut, (130) grasps and fixes the bolt head or nut at a 360 ° angle, so that the torque is evenly distributed to all parts of the bolt head or nut, so that even if a large torque is applied, the wrench is not broken. In the course of tightening or loosening, The corner portions of the first and second plates are not broken.

The technical idea of the present invention has been described above with reference to the embodiments.

It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described above from the description of the present invention.

Further, although not explicitly shown or described, those skilled in the art can make various modifications including the technical idea of the present invention from the description of the present invention Which is still within the scope of the present invention.

The above-described embodiments described with reference to the accompanying drawings are for the purpose of illustrating the present invention, and the scope of the present invention is not limited to these embodiments.

101: Body
110: head
111: Control lever
112: Tooth
113:
114: Guide groove
120:
130: Joe
131: Hinge
132: ratchet gear
133: Taper face
134: spring
135: Home
136:
137: Guide projection

Claims (7)

A body 101;
A head 110 formed on one side of the body 101 and having an inner surface opened in a donut shape;
A door 120 for partially opening the head 110 and opening and closing the head 110 by fastening the hinge 131 to the body 101 or the head 110;
A predetermined number of the ratchet gears 132 are formed on the outer surface of the head 110 and the opening and closing port 120 so that the inner surface of the ratchet gear 132 is in contact with the adjacent tank 130, A tank 130 which is in contact with the bolt head and the nut by being protruded from the inner surface;
And a pair of teeth (112) selectively engaged with a ratchet gear (132) formed on the outer surface of the tub (130) inside the body (101).
The method according to claim 1,
Further comprising fastening means for fastening the opening / closing port (120) to the head (110) when the opening / closing port (120) is closed.
The method according to claim 1,
A guide groove 114 is formed in the head 110 and the opening and closing port 120 and a guide protrusion 137 is formed on the outer surface of the tank 130 so that the guide protrusion 137 is inserted into the guide groove 114 (130) is configured to slide within the head (110) and the opening / closing port (120).
The method according to claim 1,
The opening and closing port 120 is supported by a spring 134 resiliently supported within the body 101 so that the opening and closing port 120 is closed by the elastic force of the spring 134.
The method according to claim 1,
A tapered tapered surface (133) is formed on both inner surfaces of the tub (130) to provide a groove with the tapered surface (133) of the adjacent tub (130).
6. The method according to claim 1 or 5,
And a groove (135) is formed in the center of the inner surface of the tub (130).
The method according to claim 1,
An elastic protrusion 136 protruded from an inner spring is formed on an upper surface, a lower surface, or upper and lower surfaces of the respective tanks 130,
The ratchet wrench according to claim 1, wherein the engaging groove (113) is formed in an upper surface, a lower surface, or a lower surface of the head (110) and the opening and closing port (120)
KR1020140140575A 2014-10-17 2014-10-17 Openable and closable ratchet wrench KR20160054056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140140575A KR20160054056A (en) 2014-10-17 2014-10-17 Openable and closable ratchet wrench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140140575A KR20160054056A (en) 2014-10-17 2014-10-17 Openable and closable ratchet wrench

Publications (1)

Publication Number Publication Date
KR20160054056A true KR20160054056A (en) 2016-05-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140140575A KR20160054056A (en) 2014-10-17 2014-10-17 Openable and closable ratchet wrench

Country Status (1)

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KR (1) KR20160054056A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108214369A (en) * 2018-02-05 2018-06-29 珠海雷克斯电子科技有限公司 A kind of bayonet type ratchet spanner
CN110370209A (en) * 2019-07-25 2019-10-25 赵宇 A kind of electric wrench

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108214369A (en) * 2018-02-05 2018-06-29 珠海雷克斯电子科技有限公司 A kind of bayonet type ratchet spanner
CN110370209A (en) * 2019-07-25 2019-10-25 赵宇 A kind of electric wrench

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