KR20170027047A - One way torque jig - Google Patents

One way torque jig Download PDF

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Publication number
KR20170027047A
KR20170027047A KR1020150123465A KR20150123465A KR20170027047A KR 20170027047 A KR20170027047 A KR 20170027047A KR 1020150123465 A KR1020150123465 A KR 1020150123465A KR 20150123465 A KR20150123465 A KR 20150123465A KR 20170027047 A KR20170027047 A KR 20170027047A
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KR
South Korea
Prior art keywords
locking
pin
elastic member
insertion groove
locking pin
Prior art date
Application number
KR1020150123465A
Other languages
Korean (ko)
Inventor
김범진
박종성
구현수
설경환
Original Assignee
(주)디지탈옵틱
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.)
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Application filed by (주)디지탈옵틱 filed Critical (주)디지탈옵틱
Priority to KR1020150123465A priority Critical patent/KR20170027047A/en
Publication of KR20170027047A publication Critical patent/KR20170027047A/en

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    • 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
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • 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
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • 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
    • B25B13/48—Spanners; Wrenches for special purposes
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

A one-way torque jig is started. A one-way torque jig according to one aspect of the present invention includes a locking portion having a circular locking hole into which an object is inserted and a pin insertion groove communicating with the locking hole, and a locking portion inserted into the pin insertion groove, And a resilient member which protrudes and can move inside the pin insertion groove and an elastic member which resiliently presses the locking pin such that the locking pin is in a position to form a locked state with respect to the object inside the pin insertion groove , The locking pin changes its position in the pin insertion groove in accordance with the rotation direction of the locking portion to lock or unlock the object.

Description

ONE WAY TORQUE JIG}

The present invention relates to a torque jig capable of transmitting a force in one direction only.

A torque jig is used to transmit a torque (rotational force) to an object and serves to connect the object with the rotational force generating means. Such a torque jig can be used in various fields, for example, when a cover (not shown) of a lens barrel is to be coupled to a main body.

Since a plurality of lenses are arranged at regular intervals inside the lens barrel and the focus is changed when the distance between the lenses is changed, it is necessary to connect the cover to the main body with a precise pressure. Therefore, a torque limiter is used to apply the constant torque to the cover to the main body, and the torque limiter and the cover are interconnected via the torque jig. The torque jig serves to lock the cover of the lens barrel having a cylindrical shape and to transmit the torque transmitted through the torque limiter to the cover.

The one-way torque jig allows torque to be transmitted in a specific direction (clockwise or counterclockwise). Such a one-way torque jig can be used when an object needs to be rotated only in a specific direction, but can not be easily grasped by an operator.

Japanese Patent Application Laid-Open No. 2003-145438

Accordingly, it is an object of the present invention to provide a torque jig capable of transmitting torque in one direction.

Other objects of the present invention will become more apparent through the embodiments described below.

A one-way torque jig according to one aspect of the present invention includes a locking portion having a circular locking hole into which an object is inserted and a pin insertion groove communicating with the locking hole, and a locking portion inserted into the pin insertion groove, And a resilient member which protrudes and can move inside the pin insertion groove and an elastic member which resiliently presses the locking pin such that the locking pin is in a position to form a locked state with respect to the object inside the pin insertion groove , The locking pin changes its position in the pin insertion groove in accordance with the rotation direction of the locking portion to lock or unlock the object.

The one-way torque jig according to the present invention may have one or more of the following embodiments. For example, the pin insertion slot has a first inner surface and a second inner surface, and the elastic member presses the locking pin toward the first inner surface, and when the locking pin contacts or approaches the first inner surface, Can be formed.

The degree of protrusion of the locking pin from the second inner surface toward the inner circumferential surface of the locking hole toward the first inner surface can be increased.

The elastic member is inserted into the elastic member groove, and the elastic member groove can communicate with the pin insertion groove.

The pin insertion groove has a protruding opening for allowing the locking pin to protrude into the locking hole, and the arc length of the first inner surface can be made smaller than the arc length of the second inner surface by the protruding entrance.

The elastic member grooves may be formed in the same direction on the first surface and the second surface of the locking portion, respectively.

The locking portion may further include a cover portion having a first surface and a second surface, the cover portion being engaged with the first surface, and a connection portion coupling with the second surface, and the connection portion may include a connection protrusion.

The present invention can provide a torque jig capable of transmitting torque in one direction.

1 is a perspective view illustrating a one-way torque jig according to an embodiment of the present invention.
2 is an exploded perspective view of the one-way torque jig shown in Fig.
3 is a perspective view illustrating a locking portion.
4 is a plan view illustrating the first surface of the locking portion.
Figure 5 is a bottom view illustrating the second side of the locking portion.
6 is an enlarged view of a portion A in Fig.
7 is a cross-sectional view of the cover portion taken along line AA in Fig.
8 is a cross-sectional view of the connection portion taken along the line BB in Fig.
9 is a diagram illustrating a locking state for an object.
10 is a diagram illustrating a state in which locking of an object is released;

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout the specification and claims. The description will be omitted.

FIG. 1 is a perspective view illustrating a one-way torque jig 100 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a one-way torque jig 100 illustrated in FIG.

1 and 2, the unidirectional torque jig 100 according to the present embodiment is used to insert a circular object (not shown) into the locking hole 112 and apply torque only in one direction It corresponds to a jig. The object can be locked in one direction by the unidirectional torque jig 100 according to the present embodiment so that the torque can be transmitted even if the engaging means such as the projection is not formed on the peripheral surface of the object.

The unidirectional torque jig 100 according to the present embodiment includes a locking portion 110 for locking the object only in one direction, a cover portion 150 for coupling to the first surface 118 of the locking portion 110, And a connecting portion 160 that engages a second surface (see reference numeral 126 in FIG. The connecting portion 160 includes a connecting protrusion 162. The connecting protrusion 162 is coupled to a torque limiter (not shown) to transmit torque of a predetermined magnitude to the torque jig 100. [

Hereinafter, the locking unit 110 of the one-way torque jig 100 according to the present embodiment will be described with reference to FIGS. 1 to 6. FIG.

3 is a perspective view illustrating the locking part 110. The locking pin 170 and the elastic member 180 are removed. 4 is a plan view illustrating the first surface 118 of the locking portion 110 and FIG. 5 is a bottom view illustrating the second surface 126 of the locking portion 110. FIG. 6 is an enlarged view of a portion A in Fig.

1 to 6, the locking part 110 has a ring shape and a locking hole 112 through which an object is inserted is formed at the center. The locking part 110 is in close contact with the periphery of the object inserted into the locking hole 112, and transmits the rotational force in one direction. A plurality of locking pins 170 and an elastic member 180 are disposed inside the locking part 110.

The locking portion 110 includes a locking hole 112 formed at the center, a first surface 118 to which the cover portion 150 is coupled, a second surface 126 to which the coupling portion 160 is coupled, And a pin insertion groove 132 into which the pin 170 is inserted. The locking portion 110 may be formed of a material having excellent wear resistance and strength (for example, SUS 304).

The locking hole 112 is formed at the center of the locking part 110 and corresponds to a part where an object (not shown) is inserted. The object inserted into the locking hole 112 receives the torque only in one direction by the locking part 110. The diameter of the locking hole 112 may be somewhat larger than the diameter of the object. Therefore, when the object is not locked by the locking pin 170 in the locking hole 112, the object does not rotate even if the torque jig 100 rotates.

1, one side of the opening of the locking hole 112 is closed by the connection part 160 and the other side of the opening is opened by the center hole 152 of the cover part 150 . The object can be inserted into the locking hole 112 through the center hole 152 of the cover part 150.

A plurality of pin insertion grooves 132 are formed in the inner circumferential surface 114 of the locking hole 112 at regular intervals. A locking pin 170 is inserted into the pin insertion groove 132 and a part of the locking pin 170 protrudes from the inner circumferential surface 114 of the locking hole 112. Referring to FIG. 3, the pin insertion groove 132 may be formed in the entire height direction of the locking part 110.

4 to 6, the pin insertion groove 132 has a first inner surface 134 and a second inner surface 136, and a protruding inlet 138.

The first inner surface 134 and the second inner surface 136 have the same radius of curvature and correspond to both ends of the pin insertion groove 132. The locking pin 170 moves between the first inner surface 134 and the second inner surface 136 of the pin insertion groove 132. The locking pin 170 is brought into contact with the first inner surface 134 by the urging force of the elastic member 180 when no external force is applied. When the external force is applied, the locking pin 170 can contact the second inner surface 136 despite the pressing force of the elastic member 180.

A straight line section 142 is formed between the first inner surface 134 and the second inner surface 136 as illustrated in FIG. The linear section 142 is formed between the first inner surface 134 and the second inner surface 136 so that the locking pin 170 can be moved within the pin insertion groove 132 by the distance of the straight section 142 do.

When the locking pin 170 contacts the first inner surface 134, the locking pin 170 protrudes most to the inner circumferential surface 114 of the locking hole 112. At this time, the object inserted into the locking hole 112, And a locking pin 170 is interposed between the locking protrusions 112 to form a lock state (see FIG. 9). The object inserted into the locking part 110 and the locking hole 112 is integrally rotated.

The closer the locking pin 170 is to the second inner surface 136, the smaller the extent to which the locking pin 170 protrudes into the inner circumferential surface 114 of the locking hole 112. At this time, The locked state may not be formed between the locking portions 112 (see FIG. 10). If the locking state is not formed, the object inserted into the locking hole 112 does not rotate despite the rotation of the locking part 110.

The degree of protrusion of the locking pin 170 from the second inner surface 136 toward the first inner surface 134 toward the inner circumferential surface 114 of the locking hole 112 increases (see FIGS. 9 and 10) . It can also be seen that the arc length of the first inner surface 134 is formed smaller by the protruding inlet 138 than the second inner surface 136.

The cross-sectional diameter of the locking pin 170 is formed larger than that of the protrusion inlet 138. Therefore, the locking pin 170 does not move out of the pin insertion groove 132 through the protruding inlet 138. [

4 and 5, it can be seen that the pin insertion groove 132 communicates with the first elastic member groove 120 and the second elastic member groove 128. The first elastic member groove 120 and the second elastic member groove 128 are grooves formed in the same direction on the first surface 118 and the second surface 126 of the locking portion 110, The elastic member 180 is located.

Referring to FIG. 4, the first surface 118 of the locking part 110 is formed with a first elastic member groove 120 corresponding to the pin insertion groove 132, and a plurality of first elastic member grooves 120 Are all formed in the same size and in the same direction. 5, a second elastic member groove 128 is formed in the second surface 126 parallel to the first surface 118 of the locking part 110 to correspond to the pin insertion groove 132 And the plurality of second elastic member grooves 128 are all formed in the same size and in the same direction. Accordingly, the first and second elastic member grooves 120 and 128 are formed in the same direction, so that the elastic members 180 press the locking pins 170 in the same direction.

The elastic members 180 are formed on the first surface 118 and the second surface 126 of the locking portion 110 so that the two elastic members 180 are engaged with one end of one locking pin 170 And the other end can be stably pressed.

Of course, the present invention is not limited by the number and position of the elastic members 180 pressing one locking pin 170. [ The torque jig according to another embodiment of the present invention may press one locking pin on one elastic member or press one locking pin on three or more elastic members.

The direction in which the elastic member 180 presses the locking pin 170 (the direction of the arrow in FIG. 4) is the same as the direction in which the pin insertion slot 132 is formed at the center of the locking portion 110 May be perpendicular to the line a connecting the end of the first inner surface 134 (the point of contact with the first inner surface 134 which is a circular arc). The forming direction of the pin insertion groove 132 and the elastic member grooves 120, 128 may be formed perpendicular to the line a.

The locking portion 110 has an outer circumferential surface 116. The outer circumferential surface 116 is smoothly formed with the locking pin 170 not protruding.

On the first surface 118 of the locking part 110, fastening holes 122 are formed at regular intervals. When the cover part 150 is engaged with the locking part 110, the fastening hole 112 is communicated with the fastening hole 156 formed in the cover part 150. And the cover portion 150 is coupled to the locking portion 110 by a bolt (not shown).

On the second surface 126 of the locking part 110, fastening holes 122 are formed at regular intervals. When the connecting portion 160 is coupled to the locking portion 110, the fastening hole 122 is communicated with the fastening hole 166 formed in the cover portion 150. And the connecting portion 160 is coupled to the locking portion 110 by a bolt (not shown).

When the locking part 110 rotates in one direction, the locking pin 170 is interposed between the object and the locking part 110 to receive a pressing force. As a result, a lock is formed between the locking part 110 and the object 190 (see FIG. 9). The locking pin 170 is inserted into the pin insertion groove 132 and positioned between the first inner surface 134 and the second inner surface 136 or between the first inner surface 134 and the second inner surface 136 in accordance with the rotation direction of the locking portion 110. The locking pin 170 receives an elastic pressing force in the direction of the first inner surface 134 by the elastic member 180.

The locking pin 170 may have a cylindrical shape. The first inner surface 134 or the second inner surface 136 formed in the pin insertion groove 132 may have the same radius of curvature as the locking pin 170 so that the locking pin 170 has a first inner surface 134 ) Or the second inner surface 136. [0051]

The elastic member 180 resiliently urges the locking pin 170 so that the locking pin 170 moves to a position where it forms a locked state with respect to the object 190 within the pin insertion groove 132 (I.e., a position in contact with or close to the contact surface 134). The elastic member 180 is inserted into the first elastic member groove 120 formed on the first surface 118 of the locking part 110 and the second elastic member groove 128 formed on the second surface 126 And elastically presses one end and the other end of the locking pin 170 in the same direction. When the external force does not act, the locking pin 170 contacts the first inner surface 134 by the elastic member 180.

Although the coil spring is exemplified as the elastic member 180 in the torque jig 100 according to the present embodiment, the present invention is not limited by the type and material of the elastic member. The present invention can adopt elastic rubber or the like as the elastic member, and any shape, material and kind can be used as long as the locking pin 170 can elastically press the locking pin 170 in one direction.

7 is a cross-sectional view of the cover portion 150 taken along line AA of FIG.

1 to 2 and 7, the cover portion 150 covers the first surface 118 of the locking portion 110, which causes the locking pin 170 to move away from the pin insertion groove 132 . The cover portion 150 may be formed of a material such as aluminum.

The cover 150 has a center hole 152. The diameter of the center hole 152 is somewhat larger than the diameter of the locking hole 112. [ As a result, an object (not shown) inserted into the locking hole 112 is not blocked by the cover part 150.

The cover portion 150 has a circumferential surface 154. An empty space is formed in the circumferential surface 154 so that a part of the locking portion 110 is inserted. The height of the circumferential surface 154 may be smaller than the height of the locking portion 110.

The cover portion 150 has a plurality of fastening holes 156 and bolts (not shown) inserted into the fastening holes 156 are fastened to the fastening holes 122 formed in the first surface 118. As a result, the cover portion 150 is engaged with the first surface 118 of the locking portion 110.

8 is a sectional view of the connection portion 160 taken along the line BB of FIG.

Referring to FIGS. 1 to 2 and 8, the connection portion 160 covers the second surface 126 of the locking portion 110, thereby disengaging the locking pin 170 from the pin insertion groove 132 Is prevented. The connection portion 160 may be formed of a material such as aluminum.

The connection portion 160 has a circumferential surface 164 and a hollow space is formed in the circumferential surface 164 so that a part of the locking portion 110 is inserted. The height of the circumferential surface 164 may be smaller than the height of the locking portion 110.

A connection protrusion 162 protrudes vertically from the bottom center of the connection portion 160. In order to facilitate transmission of the torque, the cross section of the coupling protrusion 162 may be formed into a polygon such as a square or a hexagon. A torque limiter (not shown) or various tools may be connected to the coupling protrusion 162 to transmit the torque to the locking portion 110.

The connecting portion 160 has a plurality of fastening holes 166 which are fastened to the fastening holes 122 formed in the second surface 126 of the fastening holes 166. As a result, the coupling portion 160 is engaged with the second surface 126 of the locking portion 110.

9 and 10, the torque jig 100 according to the present embodiment locks the object 190 to transmit the torque (FIG. 9) and does not lock the object 190 to transmit the torque (Fig. 10) will be described.

9 is a view illustrating a state in which the locking portion 110 locks the object 190 and the torque is transmitted. The arrows in Fig. 9 illustrate the direction of the torque.

9, it can be seen that the object 190 is inserted into the locking hole 112 of the locking part 110 and the object 190 has a somewhat smaller diameter than the locking hole 112 . It can be seen that a projection (not shown) or the like is not formed around the object 190.

When the locking part 110 is rotated in the arrow direction (counterclockwise direction) in the state of FIG. 9 in which the object 190 is inserted into the locking hole 112, the elastic pressing force of the elastic member 180 and the pressing force of the locking pin 170 The locking pin 170 is brought close to the first inner surface 134 in the pin insertion groove 132 by the frictional force between the object 190. [ When the locking pin 170 is in contact with the first inner surface 134, it corresponds to a state in which the locking pin 170 protrudes most with respect to the inner peripheral surface 114 of the locking hole 112. Even when the locking pin 170 is in contact with the first inner surface 134, since the frictional force by the torque and the elastic pressing force by the elastic member 180 are continuously received, the state of contact with the first inner surface 134 is maintained Do not move.

The locking pin 170 is interposed between the object 190 and the locking part 110 to transmit the torque of the locking part 110 to the object 190. In Fig. 9, the locking pin 170 may press the peripheral surface of the object 190 to deform its shape, or it may be pressed by the object 190 to deform its shape. As described above, by deforming the shape of at least one of the object 190 and the locking pin 170, the frictional force between the object 190 and the locking pin 170 is strengthened, so that the torque transmission of the locking part 110 becomes possible.

9, the locking part 110 and the object 190 rotate in the same direction because the locking part 110 is in the locked state with respect to the circumferential surface of the object 190. [ The torque can be transmitted to the object 190 after coupling the torque jig 100 according to the present embodiment to an apparatus capable of providing torque (not shown). At this time, a constant torque may be transmitted between the torque providing device and the torque jig 100 via a torque limiter (not shown).

10 illustrates a state in which locking is released with respect to the object 190 so that no torque is transmitted. For reference, arrows in FIG. 10 illustrate the direction of the torque.

The locking pin 170 is urged by the elastic member 180 in the direction of the first inner surface 134 to be in contact with the surface of the object 190 so as to be as shown in FIG. 10 after the object 190 is inserted into the locking hole 112 . In this state, when the locking part 110 is rotated in the direction of the arrow (clockwise), the locking pin 170 is moved to the second inner surface 136 . As the locking pin 170 retracts toward the second inner surface 136, the degree of protrusion to the inner circumferential surface 114 of the locking hole 112 becomes smaller and consequently the frictional force between the locking pin 170 and the object 190 So that the torque of the locking part 110 is not transmitted to the object 190.

10, the locking pin 170 is always in contact with the circumferential surface of the object 190 because the locking pin 170 is urged toward the first inner surface 134 by the elastic pressing force of the elastic member 180. [ At this time, when the locking part 110 is rotated in the direction of the arrow, the locking pin 170 is moved by the frictional force between the locking pin 170 and the object 190, in spite of the elastic pressing force of the elastic member 180, And is retracted toward the inner surface (136).

10, when the locking portion 110 is rotated in the opposite direction (counterclockwise), by the frictional force between the locking pin 170 and the object 190 and the elastic pressing force of the elastic member 180, The locking member 170 is moved in the direction of the first inner surface 134 to form a locked state as shown in FIG.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

100: Torque jig
110: locking part 112: locking hole
118: first side 126: second side
132: pin insertion groove 134: first inner surface
136: second inner surface 138: protruding entrance
150: cover part 160:
170: locking pin 180: elastic member
190: object

Claims (7)

A locking portion having a circular locking hole into which an object is inserted and a pin insertion groove communicating with the locking hole;
A locking pin inserted into the pin insertion slot and protruding from an inner circumferential surface of the locking hole, the locking pin being movable within the pin insertion slot; And
And an elastic member elastically pressing the locking pin so that the locking pin is in a position to form a locked state with respect to the object inside the pin insertion groove,
Wherein the locking pin is configured to lock or unlock the object while the position of the locking pin in the pin insertion groove varies in accordance with the rotation direction of the locking part. The method according to claim 1,
Wherein the pin insertion groove has a first inner surface and a second inner surface,
The elastic member urging the locking pin toward the first inner surface,
And forms a locked state for the object when the locking pin contacts or is close to the first inner surface. 3. The method of claim 2,
And the degree of protrusion of the locking pin toward the inner circumferential surface of the locking hole increases from the second inner surface toward the first inner surface. 3. The method of claim 2,
Wherein the elastic member is inserted into the elastic member groove, and the elastic member groove communicates with the pin insertion groove. The apparatus of claim 2,
Wherein the pin insertion groove has a protruding inlet for protruding the locking pin into the locking hole,
And the arc length of the first inner surface is formed to be smaller than the arc length of the second inner surface by the protruding entrance. 5. The method of claim 4,
Wherein the elastic member grooves are formed in the same direction on the first surface and the second surface of the locking portion, respectively. The method according to claim 1,
Wherein the locking portion has a first surface and a second surface,
A cover portion that engages with the first surface, and a connection portion that engages with the second surface,
Wherein the connecting portion includes a connecting protrusion.
KR1020150123465A 2015-09-01 2015-09-01 One way torque jig KR20170027047A (en)

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KR1020150123465A KR20170027047A (en) 2015-09-01 2015-09-01 One way torque jig

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Application Number Priority Date Filing Date Title
KR1020150123465A KR20170027047A (en) 2015-09-01 2015-09-01 One way torque jig

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003145438A (en) 2001-11-05 2003-05-20 Konchi Seimitsu Kogyo Kofun Yugenkoshi Fastening tool

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003145438A (en) 2001-11-05 2003-05-20 Konchi Seimitsu Kogyo Kofun Yugenkoshi Fastening tool

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