JP3189593U - Cross wrench - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cross wrench capable of tightening a screw member with a specified torque. When an external force around an axial center of a rotating shaft portion 11 is applied to an orthogonal shaft portion 21, the rotating shaft portion 11 rotates about its own axial center together with a mounted socket member 31. In other words, the same fast rotation as a conventional cross wrench is realized. When the rotating shaft portion 11 continues to rotate and a screw member (not shown) is tightened with a specified torque, a predetermined torque corresponding to the specified torque is applied to the rotating shaft portion 11. At this time, a click feeling is generated in the worker. That is, the same function as the conventional signal type torque wrench is realized. [Selection diagram] Fig. 1

Description

  The present invention relates to a cross wrench that is a cross-shaped fastener.

The cross wrench is used, for example, when tightening a wheel nut (see Patent Document 1). The cross wrench has an advantage that even a powerless operator can quickly remove the wheel nut by so-called fast turning.
However, it is difficult to tighten the wheel nut with a specified torque using only a cross wrench. Therefore, it is desirable to use a torque wrench after tightening with a cross wrench.

Utility Model Registration No. 3087859

  However, possessing both a cross wrench and a torque wrench, for example, because there is no room for storing multiple tools in the storage location, or because it is cumbersome to use a cross wrench and a torque wrench alternately. May be deceived.

  The present invention has been made in view of such circumstances, and a main object thereof is to provide a cross wrench capable of tightening a screw member such as a bolt or a nut with a prescribed torque.

  The cross wrench according to the present invention is a cross wrench comprising a first hook part to which a socket member is detachably mounted, and a second hook part attached to the first hook part in an orthogonal shape. The flange portion includes a rotary shaft portion in which the socket member is detachably mounted at one end portion, and the other end of the rotary shaft portion so that the rotary shaft portion can rotate around the axis of the rotary shaft portion. A second support portion that is rotatable with the rotary shaft portion in a posture orthogonal to the rotary shaft portion and movable in the axial length direction of the second flange portion. An orthogonal shaft portion that is removably attached to the rotating shaft portion with its rotation about an axis center restricted, and the rotation that can be engaged / disengaged to restrict / release movement of the orthogonal shaft portion in the axial length direction A locking portion that locks to the shaft portion, one end portion side of the orthogonal shaft portion, and a first engaging portion; And a second engagement portion that is detachably engaged with the first engagement portion, and the first engagement portion and the second engagement when a predetermined torque is applied to the rotary shaft portion. And a click generating portion for generating a click feeling when the first engaging portion and the second engaging portion are engaged / disengaged.

  In the cross wrench according to the present invention, the cross-section of the orthogonal shaft portion is D-shaped, and the orthogonal shaft portion is removably inserted into the rotation shaft portion, and the cross-sectional shape of the orthogonal shaft portion is A through hole having a corresponding peripheral shape is provided.

  In the cross wrench according to the present invention, the locking portion is disposed at least at the other end portion of the orthogonal shaft portion, and the locking portion disposed at the other end portion is engaged / disengaged with respect to the rotating shaft portion. A switching unit for switching, and when the locking unit arranged at the other end by the switching unit is in a locked state / unlocked state, the orthogonal shaft unit is connected to the rotating shaft unit. It is characterized by being non-detachable / available.

  In the cross wrench according to the present invention, the locking portion disposed on the other end portion is disposed at a position far from the click occurrence portion, and a first locking convex portion protruding so as to protrude from the orthogonal shaft portion, A second locking projection that is arranged at a position close to the click occurrence portion, protrudes from the orthogonal shaft portion so as to be able to project and retract, and is urged in a protruding direction, and the switching portion is pressed. Each time, there is a pressing portion for switching the first locking convex portion between the protruding and retracting, and when the first locking convex portion protrudes / immerses, the orthogonal shaft portion is attached to and detached from the rotating shaft portion. It is characterized by being impossible / possible.

  The cross wrench according to the present invention is supported by the orthogonal shaft portion, further includes a pivot portion parallel to the rotation shaft portion, and the click occurrence portion is swingable around the pivot portion, A bottomed cylindrical rocking portion in which one end portion of the orthogonal shaft portion is loosely inserted, the first engagement portion provided in the orthogonal shaft portion, the second engagement portion, and the second And an urging portion that is interposed between the engaging portion and the swinging portion and urges the second engaging portion in a direction to engage the first engaging portion. When the part and the second engaging part are engaged, the swinging of the swinging part is restricted, and when an external force around the axis of the pivot part is applied to the swinging part, the first engaging part and the second engaging part The engagement of the two engaging portions is released, and when the first engaging portion and the second engaging portion are not engaged, the swinging portion swings until it comes into contact with the orthogonal shaft portion. Special To.

In the present invention, when an external force around the axis of the rotating shaft is applied to the orthogonal shaft, the rotating shaft, together with the socket member mounted on the rotating shaft, is centered on the axis of the rotating shaft. Rotate. That is, the fast turning similar to the conventional cross wrench is realized.
When the rotating shaft portion continues to rotate and the screw member is tightened with a specified torque, a predetermined torque corresponding to the specified torque is applied to the rotating shaft portion via the socket member. Then, the engagement / disengagement between the first engagement portion and the second engagement portion is changed (that is, the engagement state is changed to the non-engagement state, or the non-engagement state is changed to the engagement state). When the engaged first engaging portion and the second engaging portion are disengaged (or when the disengaged first engaging portion and the second engaging portion are engaged) ) Causes a click feeling to the worker. That is, the same function as a conventional so-called signal type torque wrench is realized.

The rotating shaft portion is supported by the support portion and rotates. The support portion does not need to rotate with the rotating shaft portion. Therefore, if the support portion is used as a gripping portion for the operator, the posture of the rotating shaft portion can be easily held. Even if the support portion is gripped, the rotation of the rotating shaft portion is not hindered.
If the locking part is in the locked state, the movement of the orthogonal shaft part in the axial length direction is restricted. For this reason, the relative position of the 2nd collar part with respect to a 1st collar part is hold | maintained. On the other hand, if the locking portion is in the non-locking state, the movement of the orthogonal shaft portion in the axial length direction is released. For this reason, it is possible to change the relative position of the 2nd collar part with respect to a 1st collar part.

  The orthogonal shaft is restricted from rotating about its own axis. Therefore, the relative posture with respect to the rotation shaft portion of the click generating portion arranged in the orthogonal shaft portion does not change unnecessarily.

  In the present invention, the cross-section of the orthogonal shaft portion and the peripheral shape of the through hole through which the orthogonal shaft portion is inserted are D-shaped. For this reason, rotation of an orthogonal axis | shaft part can be controlled with a simple structure.

In the present invention, the orthogonal shaft portion is attached to and detached from the rotation shaft portion from the other end side of the orthogonal shaft portion. This is because a click generating portion is disposed on one end side of the orthogonal shaft portion.
If the locking portion arranged at the other end of the orthogonal shaft portion is in the locked state, the movement of the orthogonal shaft portion in the axial length direction is restricted. For this reason, the orthogonal shaft portion cannot be attached to and detached from the rotating shaft portion. On the other hand, if the locking portion arranged at the other end of the orthogonal shaft portion is in the non-locking state, the movement of the orthogonal shaft portion in the axial length direction is released. For this reason, the orthogonal shaft part can be attached to and detached from the rotating shaft part.

A switching part switches engagement / disengagement with respect to the rotating shaft part of the locking part. In other words, the switching unit switches whether or not the orthogonal shaft portion can be attached to and detached from the rotating shaft portion. As a result, the switching unit functions as a lock unit that prevents the orthogonal shaft portion from being unnecessarily dropped from the rotating shaft portion when the cross wrench is used.
When the engaging part arranged at the other end of the orthogonal shaft part is engaged with the rotating shaft part, the first and second collar parts of the cross wrench are arranged in a T shape. At this time, even if an external force around the axis of the rotating shaft is applied to one end of the orthogonal shaft, generation of a couple on the other end of the orthogonal shaft is suppressed.

In the present invention, when the first locking convex portion protrudes from the orthogonal shaft portion, movement of the orthogonal shaft portion in the axial length direction is restricted. For this reason, the orthogonal shaft portion cannot be attached to and detached from the rotating shaft portion. On the other hand, when the first locking convex portion is immersed in the orthogonal shaft portion, the movement of the orthogonal shaft portion in the axial length direction is released. For this reason, the orthogonal shaft part can be attached to and detached from the rotating shaft part.
The appearance of the first locking projection is switched by a pressing operation on the pressing portion. In other words, the state of the locking portion (locking state / non-locking state) disposed on the other end can be easily switched by a pressing operation to the pressing portion, and thus the orthogonal shaft portion. It is possible to easily switch the attachment / detachment of the rotary shaft portion.

  When the 2nd latching convex part protrudes from the orthogonal shaft part, the movement of the axial length direction of an orthogonal shaft part is controlled. When the second locking convex portion is immersed in the orthogonal shaft portion, the movement of the orthogonal shaft portion in the axial length direction is released. The second locking convex portion normally protrudes and is immersed when an external force exceeding the urging force applied to the second locking convex portion is applied.

  In the present invention, the pivot portion is parallel to the rotation shaft portion. Since the pivot portion is supported by the orthogonal shaft portion, it rotates together with the orthogonal shaft portion. However, there is no possibility that the pivot portion becomes non-parallel to the rotation shaft portion. This is because the orthogonal shaft portion is restricted from rotating about its own axis.

  One end of the orthogonal shaft portion is loosely inserted (inserted with play) into the bottomed cylindrical swinging portion. Moreover, the swinging part can swing around the pivot part. However, when the first engaging portion and the second engaging portion are engaged by the biasing force of the biasing portion, the swinging portion does not swing. Therefore, applying an external force around the axis of the pivot portion to the swinging portion means applying an external force around the axis of the rotating shaft to the swinging portion. At this time, the swinging portion and the orthogonal shaft portion rotate around the rotation shaft portion, and the rotation shaft portion rotates around its own axis.

  When the screw member is tightened with a predetermined torque by the rotation of the socket member accompanying the rotation of the rotation shaft portion, the rotation shaft portion is difficult to rotate due to the addition of a predetermined torque. If an external force around the axis of the pivot portion is further applied to the swinging portion, the external force is applied to the second engagement portion via the urging portion, and overcomes the urging force of the urging portion. The engagement between the joint portion and the second engagement portion is released. At this time, the swing part swings. Then, the orthogonal shaft part swings relative to the swinging part inside the swinging part. As a result, the swinging portion and the orthogonal shaft portion come into contact with each other. When an impact caused by the contact between the swinging portion and the orthogonal shaft portion is transmitted to the operator, a click feeling is generated.

  In the case of the cross wrench of the present invention, the function of the conventional cross wrench and the function of the conventional torque wrench are combined. Therefore, the screw member can be tightened with a prescribed torque using only the cross wrench of the present invention. Therefore, it is not necessary to have both a conventional cross wrench and a conventional torque wrench in order to tighten the screw member with a prescribed torque.

It is a plane fragmentary sectional view which shows the structure of the cross wrench which concerns on Embodiment 1 of this invention. It is a top view which shows the structure of a cross wrench. It is a plane fragmentary sectional view which shows the structure of the 1st collar part with which a cross wrench is equipped. It is a plane fragmentary sectional view which shows the structure of the left end side of a 2nd collar part. It is front sectional drawing which shows the structure (at the time of torque non-definition) of the right end side of a 2nd collar part. It is front sectional drawing which shows the structure (at the time of torque prescription | regulation) of the right end side of a 2nd collar part. It is a side view which shows the structure of the orthogonal shaft part with which a 2nd collar part is provided. It is a side surface fragmentary sectional view which shows the structure of the socket for tools with which the cross wrench which concerns on Embodiment 2 of this invention is provided. It is a front view which shows the structure of the socket for tools. It is a rear view which shows the structure of the socket for tools.

  Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof. In the following description, up and down, front and rear, and left and right indicated by arrows in the figure are used.

Embodiment 1.
FIG. 1 is a partial plan view showing a configuration of a cross wrench 3 according to Embodiment 1 of the present invention.
FIG. 2 is a plan view showing the configuration of the cross wrench 3.
FIG. 3 is a plan partial cross-sectional view showing the configuration of the first flange 1 provided in the cross wrench 3.
FIG. 4 is a partial plan view showing a configuration of the left end side of the second flange 2.
5 and 6 are front cross-sectional views showing the configuration of the right end side of the second flange 2. FIG. 6 shows a case where the torque of the screw member reaches a predetermined torque as will be described later.
FIG. 7 is a side view showing the configuration of the orthogonal shaft portion 21 provided in the second flange portion 2.

First, the configuration of the cross wrench 3 will be described.
As shown in FIGS. 1 and 2, the cross wrench 3 includes a first hook part 1 and a second hook part 2, and a plurality of socket members 31, 31... (Only one is shown). The cross wrench 3 is in the form of a cross or a T-shape in which the second collar 2 is attached orthogonally to the first collar 1 on which one of the socket members 31, 31,. used.

  The socket members 31, 31,... Are cylindrical. The front part of each of the socket members 31, 31,... Is fitted into a screw member (for example, a wheel nut) having a predetermined size that is different for each socket member 31. The rear portions of the socket members 31, 31,... Have the same configuration and are attached to the first flange 1. An engagement recess (not shown) is provided on the inner surface of the rear portion of each socket member 31.

As shown in FIGS. 1 to 3, the first flange 1 has a rotating shaft portion 11 and a support portion 12. The rotating shaft portion 11 constitutes a front end portion and a front-rear direction center portion of the first flange portion 1. The support portion 12 constitutes the rear end portion of the first flange portion 1.
The rotating shaft 11 has a cylindrical shape in the front-rear direction. A front-end portion 11 a of the rotating shaft portion 11 is provided with a rectangular columnar mounting portion 111 in the front-rear direction so as to protrude coaxially forward. From the upper surface of the mounting part 111, the engagement convex part 113 protrudes so that it can protrude and retract. The engagement convex portion 113 is urged in the protruding direction.

  One socket member 31 is detachably attached to the attachment portion 111. For this purpose, the operator pushes the mounting part 111 into the rear part of the socket member 31. Then, the engagement convex portion 113 of the mounting portion 111 is temporarily immersed due to contact with the socket member 31 and then protrudes. As a result, the engaging projection 113 is detachably engaged with the engaging recess of the socket member 31. Engagement between the engaging convex portion 113 and the engaging concave portion of the socket member 31 prevents the socket member 31 from falling off. Thereafter, when the operator applies an external force in the direction of pulling out the socket member 31, the engagement protrusion 113 is temporarily submerged again, whereby the engagement protrusion 113 and the engagement recess of the socket member 31 are engaged. The match is released. For this reason, the socket member 31 is pulled out from the mounting portion 111.

  A through hole 112 in the left-right direction is provided in the middle of the rotary shaft portion 11 in the front-rear direction. The peripheral shape of the through-hole 112 is a D-shape obtained by cutting a part of a circle into a straight line (see FIG. 7). In the present embodiment, the vicinity of the through hole 112 of the rotating shaft portion 11 is thicker than the other portion of the rotating shaft portion 11.

  The support portion 12 has a bottomed cylindrical shape in the front-rear direction that is open on the front side. A rear end portion 11 b of the rotating shaft portion 11 is inserted into the support portion 12. The support portion 12 supports the rear end portion 11b of the rotation shaft portion 11 so that the rotation shaft portion 11 can rotate around the axis. For this reason, the support part 12 is comprised as a bearing which uses a steel ball.

  As shown in FIGS. 1, 2, and 4 to 7, the second flange portion 2 includes an orthogonal shaft portion 21 and a click occurrence portion 22. The orthogonal shaft portion 21 constitutes the left end portion and the left-right direction center portion of the second flange portion 2. The click occurrence part 22 constitutes the right end part of the second collar part 2. A central locking portion (locking portion) 23, a left end locking portion (locking portion) 24, and a switching portion 25 are arranged on the orthogonal shaft portion 21.

  The orthogonal shaft portion 21 has a columnar shape in the left-right direction. The cross-sectional shape of the orthogonal shaft portion 21 is a D-shape obtained by cutting a part of a circle into a straight line. The orthogonal shaft portion 21 is inserted into and removed from the through hole 112 of the rotating shaft portion 11 (that is, movable in the axial length direction of the orthogonal shaft portion 21). At this time, the D-cut portion of the orthogonal shaft portion 21 and the D-cut portion of the through hole 112 are arranged to face each other. The orthogonal shaft portion 21 inserted into the through hole 112 is restricted from rotating around the axis of the orthogonal shaft portion 21 due to interference between the D cut portion of the orthogonal shaft portion 21 and the D cut portion of the through hole 112. .

The right end portion 21b of the orthogonal shaft portion 21 is penetrated by a columnar pivot portion 211 in the front-rear direction. That is, the pivot portion 211 is supported by the orthogonal shaft portion 21 in parallel with the rotation shaft portion 11 of the first collar portion 1.
An adjustment protrusion 212 protrudes downward from the right end 21 b of the orthogonal shaft portion 21.
The right end surface 21c of the orthogonal shaft portion 21 is a flat inclined surface that is inclined downward to the right. A mounting recess 217 is provided on the right end surface 21c.

The orthogonal shaft portion 21 is provided with three circular first holes 214, 215, and 216 and one circular second hole 26.
The first holes 214, 215, and 216 are each provided in a direction that opens on the circumferential surface of the orthogonal shaft portion 21 and intersects the axial length direction of the orthogonal shaft portion 21. The first holes 214 and 215 are arranged in this order from the left side to the right side at the left end portion 21 a of the orthogonal shaft portion 21. The first hole 216 is disposed in the middle of the orthogonal shaft portion 21 in the left-right direction.

  The second hole 26 is provided in the axial length direction (that is, the left-right direction) of the orthogonal shaft portion 21. The second hole 26 has a circular left hole 261 that opens to the left end surface of the orthogonal shaft portion 21 and a circular shape having an inner diameter smaller than that of the left hole 261, communicates with the left hole 261, and is connected to the first hole 214. And a right hole 262 that intersects and communicates.

The left end locking portion 24 and the switching portion 25 are disposed on the left end portion 21 a of the orthogonal shaft portion 21.
The switching unit 25 includes a pressing member (pressing unit) 251 and an urging member 252.
The biasing member 252 has a coil spring shape that expands and contracts in the left-right direction, and is arranged in the left hole 261 of the second hole 26.

The pressing member 251 integrally includes a left head 253 and a right leg 254.
The leg 254 of the pressing member 251 has a columnar shape in the left-right direction, and has a stepped recess 255 on the circumferential surface. The stepped recess 255 is a stepped shape having a deep left portion that is long in the left-right direction and a shallow right portion that is short in the left-right direction. The leg portion 254 passes through the inside of the biasing member 252 and is disposed across the left hole 261 and the right hole 262 of the second hole 26. The outer diameter of the leg 254 is approximately the same as the inner diameter of the right hole 262. A part of the peripheral surface of the leg 254 is in contact with the inner surface of the right hole 262 so as to be slidable in the left-right direction. The leg part 254 is prevented from dropping out of the second hole 26.

The head 253 of the pressing member 251 has a vertical disk shape, and is arranged at the left end of the leg 254. The head 253 is arranged in the left hole 261 of the second hole 26. The outer diameter of the head 253 is about the same as the inner diameter of the left hole 261. A part of the peripheral surface of the head 253 is in contact with the inner surface of the left hole 261 so as to be slidable in the left-right direction. The head 253 is biased by the biasing member 252 so that a part of the left side of the head 253 protrudes from the left opening of the second hole 26.
When the head portion 253 of the pressing member 251 protrudes from the left opening of the second hole 26, the shallow portion of the stepped recess 255 is located inside the first hole 214 of the orthogonal shaft portion 21.

The left end locking portion 24 has a first locking projection 241 and a second locking projection 242.
The 1st latching convex part 241 uses a steel ball. The first locking projection 241 is disposed in the first hole 214 and is in contact with the inner bottom surface of the stepped recess 255.
When the shallow portion of the stepped recess 255 is positioned inside the first hole 214, the first locking protrusion 241 is held in a state in which a part of the sphere protrudes from the first hole 214.

When a pressing force in the right direction is applied to the head portion 253 of the pressing member 251, the head portion 253 is immersed in the left hole 261 of the second hole 26 while compressing and deforming the biasing member 252. At this time, the leg portion 254 moves to the right side, and the deep portion of the stepped recess 255 is located inside the first hole 214.
When the deep portion of the stepped recess 255 is positioned inside the first hole 214, the first locking projection 241 moves to the deep portion of the stepped recess 255 and immerses inside the first hole 214. And the 1st latching convex part 241 engages with both the internal peripheral surface of the 1st hole 214, and the step part of the step-shaped recessed part 255. FIG. As a result, the leftward movement of the leg 254 is suppressed.

When a rightward pressing force is applied to the head 253 of the pressing member 251 in a state where the first locking convex portion 241 and the stepped portion of the stepped concave portion 255 are engaged, the first locking convex portion The engagement between the step 241 and the stepped portion of the stepped recess 255 is released. Then, the head 253 protrudes from the second hole 26 again by the urging force of the urging member 252. At this time, the leg portion 254 moves to the left, and the shallow portion of the stepped recess 255 is located inside the first hole 214. And the 1st latching convex part 241 returns to the shallow part of the step-shaped recessed part 255. FIG.
In other words, each time the pressing member 251 is pressed, the first locking convex portion 241 is switched between exiting and sinking.

The 2nd latching convex part 242 uses a steel ball. The second locking convex part 242 is arranged in the first hole 215 of the orthogonal shaft part 21. The second locking projection 242 has a part of the second locking projection 242 protruding from the opening of the first hole 215 by a coil spring-like urging member 243 arranged inside the first hole 215. It is energized as follows. Therefore, if a rearward external force is applied to the second locking projection 242 beyond the biasing force of the biasing member 243, the second locking projection 242 is immersed in the first hole 215.
The separation distance in the left-right direction between the first locking projection 241 and the second locking projection 242 is approximately the same as the length in the left-right direction of the through hole 112 of the rotating shaft portion 11 (that is, the through hole of the rotating shaft portion 11). 112 and the outer diameter in the vicinity of 112).

The central locking portion 23 is provided in the middle of the orthogonal shaft portion 21 in the left-right direction. The central locking part 23 has a protruding and protruding convex part 231 and a convex strip part 232.
The protrusions and recesses of the protrusions and recesses 231 are the same as the protrusions and recesses of the second locking protrusions 242 except that the protrusions and recesses 231 are arranged in the first holes 216 of the orthogonal shaft part 21. In other words, the protruding and protruding portions 231 are biased so that a part of the front side of the protruding and protruding portions 231 protrudes from the opening of the first hole 216. When an appropriate external force is applied to the protrusion / depression convex portion 231, the protrusion / depression convex portion 231 is immersed in the protrusion / depression convex portion 231.

The ridge portion 232 uses an annular member, and is externally fitted on the right side of the protruding and protruding portion 231 in the orthogonal shaft portion 21. The protruding portion 232 does not appear and disappear.
The distance in the left-right direction between the protruding / exiting convex portion 231 and the convex ridge portion 232 is approximately the same as the length in the left-right direction of the through hole 112 of the rotating shaft portion 11.

The click generating part 22 includes a first engaging part 221, a second engaging part 222, a swinging part 223, and an urging part 224.
The swinging part 223 has a bottomed cylindrical shape in the left-right direction that is open on the left side. More specifically, the swinging portion 223 includes a cylindrical member 22a and a lid member 22b that closes the right-side opening of the cylindrical member 22a, and is disposed close to the lid member 22b inside the cylindrical member 22a. It has the connected part 22c. The right end portion 21 b of the orthogonal shaft portion 21 is loosely inserted into the swinging portion 223. The pivot portion 211 of the orthogonal shaft portion 21 penetrates the left end portion of the swinging portion 223 with play. That is, the swing part 223 is attached to the orthogonal shaft part 21 so as to be swingable about the pivot part 211.

A gap between the peripheral edge of the left opening of the swinging part 223 and the peripheral surface of the right end part 21 b of the orthogonal shaft part 21 is closed by the convex part 232 of the central locking part 23.
The adjustment protrusion 212 functions as a spacer between the inner peripheral surface of the swinging portion 223 and the peripheral surface of the orthogonal shaft portion 21.

The first engaging portion 221 is formed using a cylindrical member in the front-rear direction, and is attached to the lower portion of the opening periphery of the attachment recess 217. A part / other part in the circumferential direction of the first engagement part 221 is arranged outside / inside the mounting recess 217.
The second engaging portion 222 has a roller shape in the front-rear direction. The second engaging portion 222 engages with the first engaging portion 221 so as to be detachable. When the first engagement portion 221 and the second engagement portion 222 are engaged, a part of the peripheral surface of the second engagement portion 222 faces the opening of the mounting recess 217, and the second engagement portion 222 The other part of the peripheral surface is in contact with the peripheral surface of the first engaging portion 221.

  The urging portion 224 is accommodated on the right end side inside the swinging portion 223. The urging portion 224 includes an urging portion main body 225 and an engagement support portion 226.

The engagement support portion 226 has a bottomed cylindrical shape in the left-right direction that opens on the left side. On the peripheral surface of the engagement support portion 226, a movable ball 227 that is rotatably supported by the engagement support portion 226 is projected. The peripheral surface of the movable ball 227 or the engagement support portion 226 is in contact with the inner surface of the swinging portion 223 so as to be able to roll or slide in the left-right direction. The engagement support portion 226 rotatably supports the second engagement portion 222 at the peripheral edge portion of the left opening. At this time, a part of the second engagement portion 222 in the circumferential direction is exposed to the left side from the left opening of the engagement support portion 226.
The urging unit main body 225 has a coil spring shape that expands and contracts in the left-right direction. The right end portion of the engagement support portion 226 is connected to the left end portion of the urging portion main body 225. The right end portion of the urging portion main body 225 is connected to the lid member 22b of the swinging portion 223 through the connecting portion 22c. For this reason, when the engagement support portion 226 moves in the left / right direction inside the swinging portion 223, the biasing portion main body 225 extends / contracts between the engagement support portion 226 and the swinging portion 223.

  The urging portion main body 225 urges the second engagement portion 222 in the direction of engagement with the first engagement portion 221 via the engagement support portion 226. While the first engagement portion 221 and the second engagement portion 222 are engaged by the urging force of the urging portion 224, the swing of the swing portion 223 is restricted.

More specifically, when the swinging portion 223 attempts to swing downward about the pivot portion 211, the biasing portion 224 together with the swinging portion 223 tends to swing downward about the pivot portion 211. At this time, the second engagement portion 222 tends to move downward around the axis of the pivot portion 211. However, the movement of the second engagement portion 222 is blocked by the first engagement portion 221. As a result, swinging of the biasing part 224 and further swinging of the swinging part 223 are prevented.
By the way, even if the swinging part 223 tries to swing upward about the pivot part 211, the swinging part 223 is prevented from swinging because the inner surface of the swinging part 223 contacts the adjustment protrusion 212. In other words, when the first engagement portion 221 and the second engagement portion 222 are engaged, the orthogonal shaft portion 21 is relatively around the axis of the pivot portion 211 relative to the swinging portion 223. Does not swing downward. On the other hand, the orthogonal shaft portion 21 can swing upward about the axis of the pivot portion 211 relative to the swing portion 223.

Next, a procedure for fastening the screw member with the cross wrench 3 will be described.
The operator depresses the first locking projection 241 of the left end locking portion 24 by pressing the pressing member 251 of the switching portion 25. As a result, the left end locking portion 24 is switched from the locked state to the non-locked state.

  In this state, the operator inserts the orthogonal shaft portion 21 into the through hole 112 from the right side to the left side. The operator pushes the orthogonal shaft portion 21 into the through-hole 112 until it abuts on the projecting ridge portion 232, so that the inner surface of the through-hole 112 sequentially immerses the second engaging convex portion 242 and the protruding / exiting convex portion 231. As a result, the orthogonal shaft portion 21 is arranged between the protruding and protruding convex portion 231 and the convex strip portion 232 that protrude again at the central locking portion 23. At this time, the center locking part 23 is locked to the opening peripheral part of the through-hole 112 so as to sandwich the orthogonal shaft part 21 in the left-right direction. In this state, the movement of the orthogonal shaft portion 21 in the axial length direction is restricted. Moreover, the 1st collar part 1 and the 2nd collar part 2 are distribute | arranged in the cross shape as shown in FIG.

  The operator pushes the pressing member 251 of the switching unit 25 again to project the first locking convex portion 241 of the left end locking portion 24. As a result, the left end locking portion 24 is switched from the unlocked state to the locked state. In this case, even if an external force in the direction of pulling out from the through-hole 112 acts on the orthogonal shaft portion 21 and the locking by the central locking portion 23 is released, the first locking convex portion 241 remains in the through-hole. By locking to the peripheral edge of the opening 112, dropping of the orthogonal shaft portion 21 from the rotating shaft portion 11 is suppressed.

  The worker selects the socket member 31 corresponding to the screw member to be fastened among the socket members 31, 31,..., And mounts the selected socket member 31 on the mounting portion 111. Next, the worker fits the socket member 31 into the screw member.

Next, the operator applies an external force around the axis of the rotary shaft portion 11 to the second flange portion 2. At this time, the portion to which an external force should be applied may be the orthogonal shaft portion 21 or the click occurrence portion 22. When an external force around the axis of the rotating shaft 11 is applied to the click generating portion 22 (or the orthogonal shaft 21), a couple of forces is generated at a position symmetrical about the axis of the rotating shaft 11 To do. Then, the rotating shaft part 11, the socket member 31, and the second flange part 2 rotate integrally around the axis of the rotating shaft part 11. As a result, the fast turning similar to the conventional cross wrench is realized.
If the operator grips the support portion 12 when performing such rapid rotation, the rotation shaft portion 11 is held in an appropriate posture coaxial with the screw member without hindering the rotation of the rotation shaft portion 11. be able to.

  By the way, applying an external force around the axis of the rotating shaft 11 to the swinging part 223 is equivalent to applying an external force around the axis of the pivotal part 211 to the swinging part 223. However, since the first engaging portion 221 and the second engaging portion 222 are engaged by the biasing force of the biasing portion 224, the swinging portion 223 is difficult to swing. On the other hand, while the rotating shaft portion 11 rotates, the orthogonal shaft portion 21 also rotates around the axis of the rotating shaft portion 11. Therefore, the external force applied to the swinging part 223 is consumed for the rotation of the rotating shaft part 11 and the orthogonal shaft part 21. That is, the swinging of the swinging part 223 is restricted (see FIG. 5).

  When the screw member is tightened by the rotation of the rotary shaft portion 11 and the socket member 31, the torque of the screw member eventually approaches the specified torque. At this time, a reaction force from the screw member is applied to the rotary shaft portion 11 via the socket member 31. For this reason, it becomes difficult for the rotating shaft portion 11 to rotate.

  Therefore, the operator moves the orthogonal shaft portion 21 to the right side (that is, in the direction of pulling out the orthogonal shaft portion 21 from the through hole 112) relative to the rotation shaft portion 11. Then, the inner surface of the through-hole 112 causes the protruding / depressing convex portion 231 and the second locking convex portion 242 to be sequentially immersed. As a result, the orthogonal shaft portion 21 includes a first locking convex portion 241 that is kept in a protruding state by the switching portion 25 at the left end locking portion 24 and a second locking convex portion 242 that protrudes again. Arranged between. At this time, the left end locking portion 24 locks to the opening peripheral edge portion of the through hole 112 so as to sandwich the orthogonal shaft portion 21 in the left-right direction. In this state, the movement of the orthogonal shaft portion 21 in the axial length direction is restricted. Moreover, the 1st collar part 1 and the 2nd collar part 2 are distribute | arranged to T shape as shown in FIG.

  Next, the operator applies an external force around the axis of the rotary shaft portion 11 to the swinging portion 223 of the click generating portion 22 while holding the support portion 12. Due to the lever principle, the T-shaped cross wrench 3 can apply a larger fastening force to the screw member more easily than the cross-shaped cross wrench 3. For this reason, the rotating shaft 11 and the socket member 31 further rotate. However, in the T-shaped cross wrench 3, the generation of couples is suppressed as compared with the cross-shaped cross wrench 3, so that it is difficult to turn the T-shaped cross wrench 3 quickly. Further, when the torque of the screw member further approaches the prescribed torque, the rotating shaft portion 11 becomes difficult to rotate again due to the reaction force.

  When the torque of the screw member eventually reaches a specified torque, a predetermined torque corresponding to the specified torque is applied to the rotating shaft portion 11 via the socket member 31. At this time, rotation of the rotating shaft portion 11 becomes more difficult. Therefore, it becomes difficult to rotate the rotation shaft portion 11 of the orthogonal shaft portion 21 around the axis. Then, the external force around the axis of the pivot portion 211 applied to the swinging portion 223 is transmitted to the second engaging portion 222 via the biasing portion 224 and overcomes the biasing force of the biasing portion 224. As a result, the engagement between the first engagement portion 221 and the second engagement portion 222 is released, and the second engagement portion 222 moves downward around the axis of the pivot portion 211, and the first engagement portion The oscillating portion 223 oscillates downward around the axis of the pivot portion 211 (see FIG. 6). Then, the inner surface of the swing part 223 collides with the right end part 21 b of the orthogonal shaft part 21. This collision causes a click feeling to the worker and a click sound.

The operator recognizes that the screw member has been tightened with a predetermined torque by perceiving a click feeling or a click sound. That is, the same function as a conventional signal type torque wrench is realized.
Next, the operator finishes applying an external force to the swinging portion 223. Then, the first engagement portion 221 and the second engagement portion 222 are engaged again by the urging force of the urging portion 224. At this time, the swinging part 223 swings upward and returns to the original position. At this time, a click feeling is generated in the worker and a click sound is generated. This is because the swinging swinging portion 223 comes into contact with the adjustment protrusion 212.

  After completion of the screw member fastening operation, the operator depresses the pressing member 251 of the switching unit 25 to immerse the first locking convex portion 241. As a result, the left end locking portion 24 is switched from the locked state to the non-locked state. At this time, the operator pulls out the orthogonal shaft portion 21 from the through hole 112. Further, the worker removes the socket member 31. And an operator arrange | positions the 1st collar part 1 and the 2nd collar part 2 in parallel, and accommodates in an appropriate storage location. As a result, the cross wrench 3 can be stored compactly.

By the way, the smaller the protruding amount of the adjustment protrusion 212, the harder the engagement between the first engaging portion 221 and the second engaging portion 222 is released. For this reason, by adjusting the protrusion amount of the adjustment protrusion 212, it is possible to adjust a predetermined torque that generates a click feeling and a click sound.
The adjustment of the torque is performed so that the screw member can be tightened with a predetermined torque when the cross wrench 3 is T-shaped. This is because the couple generated when the cross wrench 3 has a cross shape adversely affects the function of the cross wrench 3 as a torque wrench.

  In addition, the restriction | limiting of rotation centering on the own shaft center of the orthogonal shaft part 21 is realizable even when the shape of the orthogonal shaft part 21 and the through-hole 112 has a polygonal cross section. However, since the orthogonal shaft portion 21 having a D-shaped cross section is easier to understand the orientation of the orthogonal shaft portion 21 in the circumferential direction than the orthogonal shaft portion 21 having a polygonal cross section, the pivot portion 211 becomes the rotation shaft portion 11. There is an advantage that it is easy to insert the orthogonal shaft portion 21 into the through-hole 112 in the correct orientation in parallel.

  In addition, the restriction of rotation about the axis of the orthogonal shaft portion 21 is controlled by the engagement / disengagement between the concave portion provided on the peripheral surface of the orthogonal shaft portion 21 and the convex portion protruding from the inner surface of the through hole 112. Even in the case of, it can be realized. However, the orthogonal shaft portion 21 in which the concave portion is not provided on the peripheral surface has a better touch than the case where the concave portion is provided on the peripheral surface. Further, the restriction of rotation by the shapes of the orthogonal shaft portion 21 and the through hole 112 is simpler than the restriction of rotation by engagement / disengagement between the convex portion and the concave portion.

  Here, the reason why the rotation of the orthogonal shaft portion 21 around its own axis is restricted will be described. This is because the pivot 211 is always kept parallel to the rotation shaft 11. When the pivot portion 211 is not parallel to the rotating shaft portion 11, the swinging portion 223 does not swing accurately when the torque of the screw member reaches a predetermined torque. That is, the function of the cross wrench 3 as a torque wrench is not exhibited.

  The click occurrence part in the embodiment of the present invention is not limited to the one in this embodiment. For example, the click occurrence portion may have the same configuration as that for causing a click feeling in a conventional signal torque wrench. Further, the click occurrence part may be configured to have a quiet property in which no click sound is generated. The click occurrence portion of the present embodiment causes a click feeling when the swinging portion and the orthogonal shaft portion abut when the engagement of the first engagement portion and the second engagement portion is released. A configuration in which a click feeling is generated by the engagement (or disengagement) of the first engagement portion and the second engagement portion itself may be employed. In addition, the click occurrence part of the present embodiment may have a click feeling when the swinging part returns to the original position, but may not have a click feeling when returning to the original position.

Embodiment 2. FIG.
8 to 10 are a side partial cross-sectional view, a front view, and a rear view showing the configuration of the tool socket 32 provided in the cross wrench 3 according to Embodiment 2 of the present invention.
The cross wrench 3 of the present embodiment has substantially the same configuration as the cross wrench 3 of the first embodiment. Hereinafter, differences from the first embodiment will be described, and other parts corresponding to those of the first embodiment are denoted by the same reference numerals and description thereof will be omitted.
The tool socket 32 includes a socket member 4, a socket cover 5, and a socket plug 6.
The socket member 4 corresponds to the socket member 31 of the first embodiment. Each of the socket cover 5 and the socket plug 6 is an accessory of the socket member 4.

First, the socket member 4 will be described.
The socket member 4 integrally includes a long and thick cylindrical front portion 41 and a short and thin cylindrical rear portion 42. On the outer peripheral surface of the socket member 4, a boundary portion 43 between the front side portion 41 and the rear side portion 42 is formed in a smoothly inclined step shape.

The front part 41 has a fitting hole 411 and a communication hole 412.
The inside of the fitting hole 411 has a regular hexagonal column shape in the front-rear direction. The front opening of the fitting hole 411 is equal to the front opening of the front portion 41. Each of the six inner surfaces 41b, 41b,... Of the fitting hole 411 has a rectangular planar shape. A regular hexagonal screw member (for example, a hexagon bolt or a hexagon nut) is fitted into the fitting hole 411. When a regular hexagonal screw member is fitted into the fitting hole 411, the inner surfaces 41b, 41b, ... of the fitting hole 411 are in close contact with the six outer surfaces of the screw member. For this reason, it is possible to prevent the screw member from rattling or idle in the fitting hole 411.
The inside of the communication hole 412 has a cylindrical shape in the front-rear direction. The front opening of the communication hole 412 communicates with the fitting hole 411, and the rear opening of the communication hole 412 communicates with the mounting hole 421 described below.

The rear portion 42 has a mounting hole 421.
The inside of the mounting hole 421 has a quadrangular prism shape in the front-rear direction. The rear opening of the mounting hole 421 is equal to the rear opening of the rear portion 42. One engagement recess 422 is provided on each of the four inner surfaces of the mounting holes 421. The mounting portion 111 of the cross wrench 3 is fitted into the mounting hole 421. When the mounting portion 111 is fitted into the mounting hole 421, the engaging convex portion 113 of the cross wrench 3 is engaged with the engaging concave portion 422 so as to be detachable. As a result, like the socket member 31, the socket member 4 is detachably attached to the attachment portion 111.

The configuration of the socket member 4 as described above is the same as the configuration of a conventional socket member such as the socket member 31. Next, the difference between the two will be described.
Unlike the socket member 31, the socket member 4 is rounded so that the six notches (hexagonal corners) 41a, 41a,... Of the fitting hole 411 bulge outward. In this case, the shape of each notch portion 41a in a front view is an arc shape passing through the top of a virtual regular hexagon including the inner surfaces 41b, 41b,... And the outside of the regular hexagon. Therefore, when a regular hexagonal screw member is fitted in the fitting hole 411, the notches 41a, 41a,... Of the fitting hole 411 are in contact with the six corners of the screw member in a point contact manner.

In the case of the socket member 31, although not shown, the six notch portions of the fitting hole are angular, and are in close contact with the six corner portions of the screw member. If the screw member is fastened in this state, stress concentrates on the notch portion. For this reason, fatigue may accumulate in the notch portion of the socket member due to repetition of the fastening operation, and the socket member may eventually be destroyed.
On the other hand, the socket member 4 hardly accumulates fatigue in the notches 41a, 41a,. This is because it is difficult to collect stress in the arc-shaped notch portion 41a compared to the square notch portion.

Next, the socket plug 6 will be described.
The socket plug 6 is a plug member having a mechanical strength (particularly hardness) lower than any of the socket member 4 and the screw member, and is made of, for example, a synthetic resin. The socket plug 6 has a head 61 and a leg 62 integrally. The leg part 62 has a cylindrical shape in the front-rear direction. The head 61 has a disk shape having a diameter larger than that of the leg 62, and is provided coaxially at one end of the leg 62. Further, a front-rear direction through-hole 63 passing through the axis is provided across the head 61 and the leg 62.

The leg portion 62 is fitted into the communication hole 412 so as to be detachable from the fitting hole 411 side. As a result, the socket plug 6 is detachably attached to the socket member 4.
When the leg portion 62 is fitted into the communication hole 412, the head portion 61 is disposed on the rear bottom portion 41 c of the fitting hole 411. In this state, when the screw member is fitted into the fitting hole 411, the head 61 functions as a spacer between the rear bottom portion 41c of the fitting hole 411 and the screw member.

If the socket plug 6 is not attached, the screw member fitted in the fitting hole 411 contacts the rear bottom 41c of the fitting hole 411. At this time, the screw member may be damaged. This is because, for example, a screw member such as a wheel nut with improved decorativeness often has lower mechanical strength than the socket member 4.
On the other hand, when the socket plug 6 is attached, it is not the rear bottom 41c of the hard socket member 4 but the head 61 of the soft socket plug 6 that the screw member contacts. As a result, the screw member can be protected from damage.

Next, the socket cover 5 will be described.
The socket cover 5 is a cylindrical member having a mechanical strength (particularly hardness) lower than that of the socket member 4, and is made of, for example, a synthetic resin.
The socket cover 5 includes a peripheral surface covering portion 51, an end surface covering portion 52, slits 53, 53,. The inner diameter of the front opening of the socket cover 5 is equal to or larger than the maximum inner diameter of the fitting hole 411 of the socket member 4. The inner diameter of the rear opening of the socket cover 5 is smaller than the outer diameter of the front portion 41 of the socket member 4 and larger than the outer diameter of the rear portion 42 of the socket member 4. The length of the socket cover 5 in the axial direction is approximately the same as the length from the front end portion of the socket member 4 to the boundary portion 43.

The peripheral surface covering portion 51 has a cylindrical shape in the front-rear direction. The inner diameter of the peripheral surface covering portion 51 is larger than the outer diameter of the front portion 41 of the socket member 4.
The end surface covering portion 52 is an annular plate-like portion in a vertical posture that is integrally projected from the opening peripheral edge portion of the front opening of the peripheral surface covering portion 51 in the direction of narrowing the front opening of the peripheral surface covering portion 51. The front opening of the peripheral surface covering portion 51 narrowed by the end surface covering portion 52 is the front opening of the socket cover 5.
The locking portion 54 is an annular ridge portion that protrudes integrally with the opening peripheral portion of the rear opening of the peripheral surface covering portion 51 in the direction of narrowing the rear opening of the peripheral surface covering portion 51. The rear opening of the peripheral surface covering portion 51 narrowed by the locking portion 54 is the rear opening of the socket cover 5. Tapers are formed at the front and rear portions of the locking portion 54.

  The socket cover 5 has a plurality of (three in the present embodiment) slits 53, 53,. The slits 53, 53,... Are equally arranged in the circumferential direction. Each slit 53 is provided so as to cut out the rear end portion of the peripheral surface covering portion 51 and the locking portion 54. For this reason, the rear end portion of the socket cover 5 can be elastically expanded / reduced.

  The operator attaches the socket cover 5 to the socket member 4. For this purpose, the operator pushes the front portion 41 of the socket member 4 into the socket cover 5 from the rear opening of the socket cover 5. Then, the locking portion 54 comes into contact with the front portion 41 of the socket member 4 and the rear end portion of the socket cover 5 is expanded in diameter. When the front end portion of the socket member 4 comes into contact with the inner surface of the end surface covering portion 52 of the socket cover 5, the locking portion 54 is positioned at the boundary portion 43 of the socket member 4. At this time, the rear end portion of the socket cover 5 is reduced in diameter, and the locking portion 54 is locked to the boundary portion 43 of the socket member 4, thereby preventing the socket cover 5 from falling off the socket member 4. The diameter of the socket cover 5 is increased / decreased smoothly when the taper of the locking portion 54 slides on the socket cover 5.

As a result, the socket cover 5 covers the front portion 41 of the socket member 4. More specifically, the peripheral surface covering portion 51 of the socket cover 5 covers the peripheral surface of the front portion 41 of the socket member 4, and the end surface covering portion 52 covers the front end surface of the front portion 41 (peripheral portion of the front opening). .
The front portion 41 of the socket member 4 is fitted to the socket cover 5 with play. For this reason, the front side portion 41 of the socket member 4 rotates inside the socket cover 5 without any particular problem (rotates in an idle manner with respect to the socket cover 5). That is, the front portion 41 of the socket member 4 does not slide on the inner surface of the socket cover 5. For this reason, it is suppressed that the socket cover 5 is abraded.

The socket cover 5 prevents the socket member 4 from unnecessarily abutting against an object (not shown) other than the screw member. The object other than the screw member is, for example, a vehicle wheel.
The socket member 4 is made of, for example, a heat-treated alloy and has improved mechanical strength. On the other hand, the wheel is made of, for example, aluminum in order to reduce weight and improve aesthetics. Therefore, the mechanical strength of the wheel is low. Therefore, if the socket member 4 directly contacts the wheel, the wheel may be damaged.
On the other hand, even if the socket cover 5 having low mechanical strength directly contacts the wheel, the wheel is hardly damaged. That is, the socket cover 5 protects the wheel from damage.

When removing the socket cover 5 from the socket member 4, the operator pulls out the front portion 41 of the socket member 4 from the socket cover 5 through the rear opening of the socket cover 5. Then, the diameter / reduction of the socket cover 5 occurs again, and the socket cover 5 is smoothly removed from the socket member 4.
Engagement / disengagement of the locking portion 54 with respect to the boundary portion 43 is performed with elastic deformation of the rear end portion of the socket cover 5. For this reason, it is easy to attach and detach the socket cover 5, it is difficult to cause damage due to repeated attachment and detachment of the socket cover 5 to and from the socket member 4, and the omission of the socket cover 5 is suppressed by the presence of the locking portion 54. Benefits are gained.

The tool socket 32 as described above is used by being attached to the cross wrench 3 instead of the socket member 31 of the first embodiment.
The tool socket 32 may be used by attaching to a general cross wrench or socket wrench.
Further, the tool socket 32 is not limited to the configuration including the socket member 4, the socket cover 5, and the socket plug 6. For example, the tool socket 32 may include only the socket member 4, or may include the socket member 4 and any one of the socket cover 5 and the socket plug 6. Alternatively, the tool socket 32 may include a socket member 31 instead of the socket member 4.

  Each of the socket cover 5 and the socket plug 6 of the present embodiment is detachably attached to the socket member 4. The detachable socket cover 5 and socket plug 6 can be shared by a plurality of socket members 4, 4,. Note that the socket cover 5 and the socket plug 6 may be attached to the socket member 4 in a non-detachable manner.

The embodiment disclosed this time is to be considered as illustrative in all points and not restrictive. The scope of the present invention is not intended to include the meanings described above, but is intended to include meanings equivalent to the scope of utility model claims and all modifications within the scope of utility model claims.
In addition, as long as the effect of the present invention is obtained, the cross wrench 3 may include components that are not disclosed in the embodiment.
The constituent elements (technical features) disclosed in each embodiment can be combined with each other, and a new technical feature can be formed by the combination.

DESCRIPTION OF SYMBOLS 1 1st collar part 11 Rotating shaft part 112 Through-hole 12 Support part 2 2nd collar part 21 Orthogonal shaft part 211 Pivot part 22 Click generating part 221 1st engagement part 222 2nd engagement part 223 Swing part 224 Energizing Part 23 Center locking part (locking part)
24 Left end locking part (locking part arranged at the other end)
241 1st latching convex part 242 2nd latching convex part 25 Switching part 251 Pressing member (pressing part)
3 Cross wrench 31 Socket member

Claims (5)

A first collar portion on which the socket member is detachably mounted;
A cross wrench comprising: a second collar portion attached perpendicularly to the first collar portion;
The first collar is
A rotating shaft part to which the socket member is detachably attached to one end part;
A support portion that supports the other end portion of the rotation shaft portion so that the rotation shaft portion can rotate about the axis of the rotation shaft portion;
The second collar part is
Rotation about its own axis is restricted and attachable to and detachable from the rotary shaft so that it can rotate with the rotary shaft in a posture orthogonal to the rotary shaft and can move in the axial direction An orthogonal shaft portion attached to,
A locking part that locks to the rotary shaft part so as to be engaged / disengaged to restrict / release movement of the orthogonal shaft part in the axial length direction;
It is arranged on one end side of the orthogonal shaft portion, and includes a first engagement portion and a second engagement portion that removably engages with the first engagement portion, and the rotation When a predetermined torque is applied to the shaft portion, the engagement / disengagement of the first engagement portion and the second engagement portion changes, and the click is made when the first engagement portion and the second engagement portion are engaged / disengaged. A cross wrench characterized by having a click occurrence portion for generating a feeling. The cross section of the orthogonal shaft portion is D-shaped,
The said rotation shaft part is inserted in the said orthogonal shaft part so that attachment or detachment is possible, and the through-hole which has the periphery shape corresponding to the cross-sectional shape of this orthogonal shaft part is provided. Cross wrench. The locking portion is disposed at least on the other end portion of the orthogonal shaft portion,
A switching unit that switches between engagement and disengagement of the locking portion disposed on the other end with respect to the rotating shaft;
When the locking part arranged at the other end by the switching part is in the locked / unlocked state, the orthogonal shaft part cannot be attached / detached to / from the rotary shaft part. The cross wrench according to claim 1 or 2, wherein the cross wrench is provided. The locking part arranged on the other end is
A first locking projection that is arranged at a position far from the click occurrence portion and protrudes from the orthogonal shaft portion so as to protrude and retract;
A second locking projection that is arranged at a position close to the click occurrence portion, protrudes from the orthogonal shaft portion so as to protrude and retract, and is biased in the protruding direction;
The switching unit has a pressing unit that switches between the exit and sinking of the first locking projection each time a pressing operation is performed,
4. The cross wrench according to claim 3, wherein the orthogonal shaft portion is detachable / possible with respect to the rotating shaft portion when the first locking convex portion protrudes / immerses. It is supported by the orthogonal shaft part, further comprising a pivot part parallel to the rotation shaft part,
The click occurrence part is
A bottomed cylindrical rocking part that is swingable about the pivot part and one end of the orthogonal shaft part is loosely inserted;
The first engagement portion provided in the orthogonal shaft portion;
The second engaging portion;
A biasing portion interposed between the second engagement portion and the swinging portion and biasing the second engagement portion in a direction of engaging the first engagement portion;
When the first engagement portion and the second engagement portion are engaged, the swing of the swing portion is restricted,
When an external force around the axis of the pivot part is applied to the swing part, the engagement of the first engagement part and the second engagement part is released,
5. The device according to claim 1, wherein when the first engaging portion and the second engaging portion are not engaged, the swinging portion swings until it contacts the orthogonal shaft portion. 6. The cross wrench according to one item.

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