JP2007130752A - Spanner for quickly replacing working head and changing angle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spanner, quickly replacing a working head and changing the angle. <P>SOLUTION: This spanner includes: a grip 10 having a connecting part at one end; a set of replacing working heads 34 respectively having a working part 36 and a connecting part 38, the connecting parts being shaped to engage with the connecting part of the grip 10; and a coupling part 20 separably provided on the connecting part of the working head 34 and the connecting part of the grip 10, wherein after the working head 34 is quickly replaced and the working head 34 is mounted on the grip 10, the coupling part 20 acts as a rotating shaft so that the working head can rotate around the rotating shaft in a different angle arc depending on the working space. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a manual tool, and more particularly, to a spanner that can quickly change an operating head and change an angle.

  Conventionally, commercially available spanners include twin aperture spanners, binocular spanners, compound spanners, ratchet wrench, box spanners, adjustable spanners, etc., some of which are common but are used for different purposes. There are also many.

  Since a compound spanner can only rotate a single size bolt (or nut), a large number of compound spanners (or twin aperture spanners or binoculars) are typically included in a toolbox to accommodate multiple size bolts. Contains a spanner or ratchet wrench. Most of them are configured such that the two operating ends (Drive-ended) and the grip portion are integrally formed, and the operating ends cannot be exchanged.

A typical box spanner contains a ratchet wrench and a number of different size box spanner heads. The ratchet wrench has a four-sided working end for mounting and replacing a box wrench head of a different size, so that a bolt (or nut) of a different size can be rotated.
However, in a space where a screwed part is mounted (for example, a space for mounting the screwed part on an engine is small), the use is often limited. .

As a measure to solve the above problem, a universal joint is added between the operating end of the spanner and the box spanner head, but the operation is inconvenient or universal sockets. Can be directly fitted, but is not practical due to high cost.
Moreover, since the external appearance of a box spanner head is a sealing type, the hexagonal joint connected with a pipe cannot be used.

  The adjustable spanner can adjust the movable jaw to fix the distance between the jaw and the movable jaw, and can rotate a bolt (or nut) in a set size range.

Conventional spanners include those that can change the angle of the operating head and those that can be fixed at a specific angle. For example, US Pat. Nos. D506,373S, 4,581,959, 5,768,960, In 6,295,898, 6,000,302, 5,199,335, 4,711,145, early publication No. 2004/0144219 and Taiwan Patent Publication No. 483,371, etc. is there.
However, although the above-mentioned invention can change the angle of the working head or can fix it to a specific angle, the working head cannot be quickly replaced.

  For example, Taiwan Patent Publication No. 482,064 is a spanner that can replace the operating head in the conventional spanner. Referring to FIG. 1, the operating head can be replaced, but the operating head is angled in the Z-axis direction. Can not change.

  In addition, Taiwan Patent Publication No. 497,526 describes “the head fitting portion is substantially arc-shaped, and has a long arc-shaped tank hole into which a screw rod is fitted,”. However, the cost is high, and it takes time to replace the working head, so that it cannot be replaced quickly, and if a large force is applied, the screw rod may cause idling of the angle in the long arc shaped tank hole. There is.

Also, what is described in Taiwan Patent Publication No. 497,525 is a structure in which the working head can be replaced and the angle can be changed in the Z-axis direction. There is a problem that it takes time.
US Patent No. D506,373S No. 4,581,959 No.5,768,960 No. 6,295,898 6,000,302 No. 5,199,335 No. 4,711,145 Early Publication No. 2004/0144219 Taiwan Patent Notice No. 483,371 Taiwan Patent Notice 482,064 Taiwan Patent Notice No. 497,526 Taiwan Patent Notice No. 497,525

  The main object of the present invention is to provide a spanner that can quickly change the working head and change the angle.

  In order to achieve the above object, the present invention has a grip having a connecting portion at one end, and an operating portion and a connecting portion, respectively, and the connecting portion can be fitted to the connecting portion of the grip. A set of operating heads for replacement and a coupling portion provided at the connecting portion of the operating head and the connecting portion of the grip so as to be separated are contained, whereby the operating head can be quickly replaced. When the operating head is mounted on the grip, a rotating shaft is formed at the coupling portion, and the operating head can be changed at different angles around the rotating shaft, and is limited by the space in which the screwed parts are mounted. This is a wrench that can quickly change the working head and change the angle.

  In the wrench capable of quickly changing the operating head and changing the angle according to the present invention, a control unit may be further installed on the grip. When the coupling portion is fixed by the control unit, the operating head can be prevented from being detached from the grip, and the operating head can be detached from the grip by loosening the coupling portion.

  Since the present invention has the above-described configuration, the operation cost can be reduced and the operation head can be replaced in a short time. In addition, even when a large force is applied, there is no risk of causing idling of the angle. It is possible to provide a spanner that can change the head and change the angle.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  1 and 2 show a wrench 1 showing a first embodiment of the present invention, in which a grip 10 and a set of replacement operating heads 34 are shown.

  A grip connecting part 12 having a substantially U-shape is provided at one end of the grip 10, and an open operation part 13 is formed at the other end.

  The grip connecting portion 12 is provided with two substantially parallel arms 14 and a concave space 16 positioned between the two arms 14. Each of the two arms 14 is provided with a corresponding pinhole 18. A coupling portion 20 formed by mounting a steel ball 22, a spring 24 and a bolt 26 in the pinhole 18 is provided in the pinhole 18 of the grip connecting portion 12.

  A part of the two steel balls 22 protrudes from the pinhole 18 into the concave space 16. The two springs 24 are respectively interposed between the two steel balls 22 and the bolts 26 so as to keep the two steel balls 22 protruding from the pinhole 18.

  Since the diameters of the end faces of the two pinholes 18 facing the concave space 16 are slightly smaller than the diameters of the other positions, the steel balls 22 cannot come out of the end faces facing the concave space 16. Thus, it can be mounted on the pinhole 18 from the outside.

  The grip connecting part 12 is provided with a spring insertion hole 28 at the concave bottom of the concave space 16, and a spring 30 and a steel ball 32 are mounted in the insertion hole 28, thereby It always comes into contact with the operating head connecting portion 38 formed at the rear of the operating head 34.

The operating head 34 includes an operating part 36 and an operating head connecting part 38.
The operating portion 36 may be an opening spanner, a spectacle spanner, a universal spanner, a ratchet wrench, or other similar ones having different sizes.
The operating head connecting portion 38 is a column, and the width is formed slightly smaller than the concave space 16 width of the grip connecting portion 12 of the grip 10, and the operating head connecting portion 38 of the operating head 34 is It can be mounted in the concave space 16 of the grip connecting part 12 of the grip 10, and the operating head connecting part 38 has a recess 40 for reliably contacting the steel balls 22 on both sides, respectively. A guide tank 42 having a depth from the recess 40 to an appropriate edge of the operating head connecting portion 38 is smaller than the recess 40.

  The operation head 34 can be quickly fitted to the grip 10 by being guided by the two guide tanks 42. At this time, when the guide tank 42 is aligned with the steel ball 22 of the connecting portion 20 and the operating head connecting portion 38 is pushed vertically or horizontally into the concave space 16 of the grip connecting portion 12. The two steel balls 22 enter the two concave portions 40 along the two guide tanks 42 and are positioned. Thereby, the steel ball 22 can be stably positioned in the recess 40. When pulled in the reverse direction (forward), the operating head 34 is removed from the concave space 16 of the grip connecting portion 12. Thereby, the function which can replace | exchange the working head 34 rapidly is implement | achieved.

  When the operating head 34 is mounted on the grip 10, the coupling portion 20 can function as a rotating shaft of the operating head 34 in addition to functioning to connect the operating head 34 and the grip 10. Can be changed with respect to the axis of the rotation axis as shown in FIG.

  If the grip 10 of the present invention and a slightly different size and type of the operating head 34 are prepared in the tool box, the user can mount a desired operating head 34 required on the grip 10 to obtain a predetermined one. The bolt (or nut) can be tightened and loosened.

FIG. 4 shows the spanner 2 of the second embodiment of the present invention, and the configuration thereof is the same as that of the spanner 1 of the first embodiment described above, but is different in the module coupling portion 46. The module coupling portion 46 includes a base 48, a spring 50, and a steel ball 52. The base 48 is provided with a concave tank 54 for mounting the spring 50 and the steel ball 52. Yes. The module coupling portion 46 is called a movable steel ball localization rod, and can be purchased directly from the market. Therefore, the module coupling portion 46 may be screwed into the storage holes 58 between the grips 56.
The other configuration is the same as that of the spanner 1 of the first embodiment described above, and details thereof are omitted.

FIG. 5 shows a spanner 3 according to the third embodiment of the present invention, and the configuration is the same as that of the spanner 1 of the first embodiment described above. In this embodiment, instead of the steel balls of the connecting portion 20, a block 62 having a protruding tip is used for the connecting portion 60. The difference is that the rear end of the block 62 is formed with a concave tank 64 for accommodating the end of the spring 66.
The other configuration is the same as that of the spanner 1 of the first embodiment described above, and details thereof are omitted.

FIG. 6 shows a spanner 4 showing a fourth embodiment of the present invention, which is different from the spanner 1 of the first embodiment described above in that the operating portion is changed.
The spanner 4 of the fourth embodiment is composed of grips 68 each having a grip connecting portion 70 provided at both ends, and the grip connecting portion 70 is formed in a column and is provided with a coupling portion 74. Storage hole 72 is provided.

The coupling portion 74 includes a spring 76 and two steel balls 78, and a part of the two steel balls 78 protrudes outward from both ends of the storage hole 72, and the spring 76 includes the storage hole 72. 72, and both ends are in contact with the two steel balls 78, respectively.
The grip connecting portions 70 of the grip 68 are respectively disposed and coupled between the parallel arms 84 of the operating head 80.
The operating head 80 has an operating head connecting portion 82 having a shape corresponding to the grip connecting portion 70 of the grip 68, and the operating head connecting portion 82 of the operating head 80 has two parallel arms 84, A concave portion 86 and a guide tank 88 are provided on the corresponding inner surface side.

  A concave space 90 is formed between the two arms 84, and a spring hole 92 for mounting a spring 94 and a steel ball 96 is provided at the bottom of the concave space 90. ing. The method of coupling the operating head 80 to the grip 68 is the same as that in the above-described embodiment, and thus detailed description thereof is omitted.

  FIG. 7 shows a spanner 5 according to a fifth embodiment of the present invention, in which a grip connecting portion 100 is provided at one end of a grip 98, and the grip connecting portion 100 is connected to two steel balls. A unit 102 is provided.

The grip connecting portion 100 is formed with two parallel arms 104 each having a pinhole 106 for mounting the two steel balls 102.
Further, the grip connecting portion 100 is formed with two holes 108 penetrating the arc end surface of the arm 104 obliquely from the upper surface through the two pinholes 106 at the rear of the two arms 104, respectively. Two fixing holes 110 are provided through which bolts 128 are passed through from the bottom surface to the top surface of the connecting portion 100 to fix the grip connecting portion 100 and the base 116.
The structure of the working head 112 (only one is shown in the figure) is the same as the working head 34 of the first embodiment, and can be mounted on the grip 98 so as to be separable.

The spanner 5 of this embodiment further includes a control unit 114 including a base 116, two quick release bars 118, two springs 120, and a presser plate 122.
As shown in FIG. 8, the base 116 is provided with two oblique through holes 124 from the top surface to the bottom surface and two screw holes (not shown) located on the bottom surface. The base 116 is fixed to the upper surface of the grip connecting part 100 by screwing two bolts 128 penetrating the two fixing holes 110 of the grip connecting part 100 into the two screw holes of the base 116.

  The two springs 120 and the quick release rod 118 are accommodated in the through holes 124 of the base 116, and the two quick release rods 118 have large diameter ends extending from the upper surface of the base 116, respectively. The small-diameter end is located in the oblique hole 108 of the grip connecting part 100.

The presser plate 122 is fixed to the large-diameter end of the two quick release rods 118. By pressing the presser plate 122, the two quick release rods 118 are displaced, and by the two springs 120, When the hand is released from the presser plate 122, the two quick release rods 118 return to their original positions.
Each of the two quick release rods 118 is provided with a recess 130, and a slope 132 is provided on one side of the recess 130.

  When the operating head 112 is replaced, when the user pushes the holding plate 122, the two quick release rods 118 are displaced downward until the two recesses 130 correspond to the two steel balls 102. At this time, the two steel balls 102 do not receive any elasticity, and can easily be retracted into the two pinholes 106 (see FIG. 9), so that the original working head 112 can be easily removed. Other working heads can be mounted.

  When the presser plate 122 is removed, the two quick release rods 118 are pushed upward by the two springs 120, so that the two steel balls 102 are pushed out along the two inclined surfaces 132, and The operating head 112 is abutted and locked (see FIG. 8), and the operating head 112 is coupled and fixed to the grip connecting portion 100.

  10 and 11 show a spanner 6 according to a sixth embodiment of the present invention. A grip 134 and an operating head 136 for replacement (only one operating head is shown in the figure) are shown. I have.

One end of the grip 134 is provided with a grip connecting portion 138 having two arms 140 and a concave space 142 located between the two arms 140.
The two arms 140 are respectively formed with pinholes 144 having the same center in the Y-axis direction. The grip connecting portion 138 is formed with a Y-axis direction through hole 146 substantially parallel to the two pinholes 144 on the right side of the two arms 140, and the one arm 140 penetrates the pinhole 144. A connecting hole 148 in the X-axis direction communicating with the hole 146 is formed.
Further, a hole 150 for mounting the steel ball 152 and the spring 154 is formed near the center of the bottom of the concave space 142, and the steel ball 152 is fitted into the concave tank 172 of the quick release rod 164.
The coupling portion 156 is a pin that is inserted into the pin hole 144 of the grip connecting portion 138 of the grip 134 and the through hole 158 on the operating head 136, whereby the operating head 136 is coupled to the grip 134. The coupling portion 156 is provided with a concave tank 160 at a position corresponding to the connecting hole 148.

  In this embodiment, five steel balls 1621 to 1625 are mounted in the connection hole 148. The through hole 146 is mounted with a quick release rod 164 and a spring 166, and the quick release rod 164 is formed with a concave portion 168, a slope 170 connected to the concave portion 168, and a concave tank 172.

  When the operating head 136 is mounted on the grip 134, when the quick release rod 164 is not pushed, the rapid release rod 164 contacts the steel ball 1621 near the upper end of the slope 170 as shown in FIG. As a result, the steel ball 1625 at the other end is pushed out of the connecting hole 148 and enters the concave tank 160 of the coupling portion 156. Accordingly, the coupling portion 156 is not detached due to the locking by the steel ball 1625.

  Further, when the quick release rod 164 is pushed down, the concave tank 172 of the quick release rod 164 is displaced to the position of the steel ball 152, so that the steel ball 152 enters the concave tank 172. The localization action is exhibited, and the other end of the quick release rod 164 protrudes out of the through hole 146. At this time, the recess 168 of the quick release rod 164 is displaced to the position of the steel ball 1621, whereby the steel balls 1621 to 1625 can be retracted, and therefore the steel ball 1625 is recessed into the coupling portion 156. The tank 160 can be detached from the tank 160 as shown in FIG. 11, whereby the operating head 136 can be removed when the coupling portion 156 is pulled out.

  When the operating head 136 is replaced, the steel ball 152 is inserted into the grip 134 and the through hole 158 of the operating head 136 and the other end of the quick release rod 164 is pushed. The quick release rod 164 is detached from the concave tank 172. Then, the spring 166 returns the quick release rod 164 to its original position as shown in FIG. At this time, the steel ball 1621 is pushed by the slope 170, and the steel ball 1625 at the other end is pushed out and enters the concave tank 160 of the coupling portion 156, so that the coupling portion 156 is fixed.

  In any state, since a part of the steel ball 1621 located on the right side is always located in the recess 168, this prevents the quick release rod 164 from falling out of the through hole 146.

  The spanner 7 of 7th Example of this invention is equipped with the grip 174 by which the U-shaped grip connection part 176 is provided in one end like FIG.12 and FIG.13.

In the grip connecting portion 176, pin holes 180 for mounting the connecting portion 182 that is a steel ball are formed in the two arms 178, respectively. In the grip connecting portion 176, a Y-axis direction through hole 184 is formed on the right side of the two arms 178, and an X-axis direction connecting hole 186 is formed in each arm 178. The two connecting holes 186 communicate with the through hole 184 and the pinhole 180.
A hole 188 that communicates perpendicularly to the through hole 184 is formed above the grip connecting portion 176. The hole 188 is provided with a cam 196 so that it can be rotated by operation.

  Both ends of the through hole 184 are sealed with bolts 190, and a communication hole 192 is formed between the two connection holes 186 and the through hole 184. A few steel balls 194 are mounted in the communication hole 192, and the outermost steel balls are in contact with both ends of the two coupling portions 182 and the cam 196, respectively.

  When the cam 196 is rotated and the convex portion 202 comes into contact with the steel ball 194, the steel ball 194 is displaced outward by a predetermined distance as shown in FIG. 12, and the two coupling portions 182 are pushed. Thus, it protrudes to the inside of the pinhole 180, whereby the operating head 200 is locked and fixed.

  When the cam 196 is rotated and the recess 198 faces the steel ball 194, the steel ball 194 is displaced inward by a predetermined distance as shown in FIG. The two coupling portions 182 move to both outer sides of the pinhole 180, and the pressure applied to the concave portion 203 of the operating head 200 is released. At this time, the working head 200 can be freely replaced.

FIG. 3 is an exploded perspective view showing a first embodiment of a spanner according to the present invention, which can quickly change the operating head and change the angle. The top view of the principal part which shows the use condition of 1st Example of this invention. FIG. 3 is a state diagram when the operating head rotates, showing a use state of the first embodiment of the present invention. The exploded top view of the principal part which shows the 2nd Example of the spanner which enabled the working head exchange and angle change of this invention rapidly. The exploded top view of the principal part which shows the 3rd Example of the spanner which enabled the working head exchange and angle change of this invention rapidly. The exploded top view of the principal part which shows the 4th Example of the spanner which enabled the working head exchange and angle change of this invention rapidly. The exploded perspective view of the principal part which shows the 5th Example of the spanner which enabled the working head exchange and angle change of this invention quickly. It is a top view of the principal part of 5th Example of this invention, and a state figure when the control part is not locked by the coupling | bond part. The top view of the principal part of 5th Example of this invention, and a state figure when a control part is locked to a coupling part. It is a top view shown in a partial section of the important section of the 6th example of the present invention, and a state figure when a control part is locked to a joint part. FIG. 10 is a plan view showing a partial cross section of a main part of a sixth embodiment of the present invention, and a state diagram when a control unit is not locked to a coupling unit. It is a top view which shows a partial section of the important section of the 7th example of the present invention, and is a state figure when a control part is locked to a joint part. It is a top view shown in a partial section of the 7th example of the present invention, and a state figure when a control part is not locked to a joint part.

Explanation of symbols

1 spanner
DESCRIPTION OF SYMBOLS 10 Grip 100 Grip connection part 102 Coupling part 104 Arm 106 Pinhole 108 Hole 110 Fixing hole 112 Actuation head 114 Control part 116 Base 118 Quick release rod 12 Grip connection part 120 Spring 122 Presser plate 124 Through hole 128 Bolt
13 Open operation part 130 Concave part 132 Slope 134 Grip 136 Actuation head 138 Grip connection part 14 Arm 140 Arm 142 Space 144 Pin hole 146 Through hole 148 Connection hole 150 Hole 152 Steel ball 154 Spring 156 Connection part 158 Through hole 16 Space 160 Recess tank 1621 to 1625 Steel ball 164 Rapid release rod 166 Spring 168 Recess 170 Slope 172 Recess tank
174 Grip 176 Grip connection part 178 Arm 18 Pin hole 180 Storage hole 182 Connection part 184 Through hole 186 Connection hole 188 Hole 190 Bolt 192 Communication hole 194 Steel ball 196 Cam 198 Recess 2 Spanner 20 Connection part 200 Operation head 201 Operation head connection part 202 Convex part 203 Concave part 22 Steel ball 24 Spring 26 Bolt 28 Spring insertion hole 3 Spanner 30 Spring 32 Steel ball 34 Actuation head 36 Actuation part 38 Actuation head connecting part 4 Spanner 40 Concave part 42 Guide tank 46 Module coupling part 48 Base 5 Spanner 50 Spring 52 Steel ball 54 Concave tank 56 Grip 58 Storage hole 6 Spanner 60 Joint part 62 Block 64 Concave tank 66 Spring 68 Grip 7 Spanner 70 Grip connection part 72 Storage hole 74 Joint part 76 Spring 78 Steel ball 80 De 82 working head connecting part 84 the arm 86 recess 88 guiding tank 90 space 92 spring holes 94 Spring 96 steel balls 98 grip

Claims (28)

A grip with a connection at one end,
A set of operating heads for replacement, each having an actuating part and a connecting part, wherein the connecting part is shaped to fit together with the connecting part of the grip;
A coupling portion provided at the connecting portion of the operating head and the connecting portion of the grip so as to be separated;
A wrench that can quickly change the operating head and change the angle.   One of the two connecting portions is a substantially concave block having a space located between two substantially parallel arms and the two arms, and the other is a substantially convex character that can be inserted into the space. The spanner according to claim 1, wherein the operating head can be quickly replaced and the angle can be changed.   The spanner according to claim 2, wherein the coupling portion is installed on the two arms, and the operating head can be quickly replaced and the angle can be changed.   Each of the two arms is provided with a pinhole, a steel ball is mounted inside the pinhole so as to protrude into the space, and a spring is provided on each outer side of the steel ball, and the coupling portion 4. The working head can be quickly changed and the angle can be changed according to claim 3, wherein the inner distance between the two steel balls is smaller than the width of the space between the two arms. Spanner.   Each of the two arms is provided with a storage hole, and the two module coupling portions are directly screwed into the storage holes, and the steel balls of the two module coupling portions respectively protrude into the space, and the coupling portion is 4. The working head can be quickly changed and the angle can be changed quickly according to claim 3, wherein the inner distance between the two steel balls is smaller than the width of the space between the two arms. Spanner.   Each of the two arms is provided with a storage hole, a block with a protruding tip and a spring are mounted in the storage hole, respectively, and a recessed tank for storing the spring is provided at the rear end of the block. 4. The working head replacement and the angle change according to claim 3, wherein the projecting tips of the two blocks project into the space from the two receiving holes to form the coupling portion. Spanner that made possible.   The substantially convex-shaped column body is provided with a storage hole, a coupling portion is mounted in the storage hole, and both ends of the coupling portion protrude from the storage hole, respectively. 2. A spanner capable of quickly changing the operating head and changing the angle as described in 2.   There are two steel balls protruding from the outer end of the storage hole in the joint, and a spring is mounted between the two steel balls so as to bias the two steel balls to form the joint. Therefore, the distance between the outer sides of the two steel balls is larger than the width of the space between the two arms, and the spanner capable of quickly changing the operating head and changing the angle according to claim 7. .   In the coupling part, there are a spring and two blocks, the outer ends of the two blocks are projecting, the inner end is a concave tub, and the spring is located between the two blocks. The spanner according to claim 7, wherein the spanner can be quickly replaced and the angle can be changed.   2. The spanner according to claim 1, wherein a recess corresponding to the coupling portion is provided in a connecting portion where the coupling portion is not installed.   11. The spanner capable of quickly changing the operating head and changing the angle according to claim 10, wherein a guide tank is further provided in the coupling portion so as to communicate from the concave portion to an edge of the connecting portion. . A grip with a connection at one end,
A set of operating heads for replacement, each having an actuating part and a connecting part, wherein the connecting part is shaped to fit together with the connecting part of the grip;
A coupling portion provided at the connecting portion of the operating head and the connecting portion of the grip so as to be separated;
A control unit installed on the grip so that the operating head can be replaced by loosening the connecting part by fixing the connecting part without detaching the operating head from the grip;
A wrench that can quickly change the operating head and change the angle.   One of the two connecting portions is a substantially concave block having a space located between two substantially parallel arms and the two arms, and the other is a substantially convex character that can be inserted into the space. The spanner according to claim 12, wherein the operating head can be quickly replaced and the angle can be changed.   13. The quick operating head replacement and angle according to claim 12, wherein the control unit includes at least a quick release rod, and the quick release rod has a concave portion and a slope located on one side of the concave portion. Spanner that allowed change.   The spanner according to claim 14, wherein the coupling portion is a steel ball, and the head can be quickly replaced and the angle can be changed.   The connecting portion of the grip has two arms and a space located between the two arms, the two arms are provided with a storage hole in which the coupling portion is mounted, and the rear of the two arms. 15. The spanner according to claim 14, wherein a through-hole is provided that extends obliquely to the storage hole and is mounted with the rapid detachment rod.   15. The quick actuation head of claim 14, wherein the control unit further comprises at least one spring that acts to determine an initial position of the quick release rod corresponding to the coupling portion of the inclined surface. Spanner that enables exchange and angle change.   The control unit further includes a base fixed to the grip, the base has a through hole having one end communicating with the connecting part, and the quick release rod is formed in a through hole between the base and the connecting part. 15. The head according to claim 14, wherein one end of the quick release rod extends from the base and the spring is received in a through hole of the base. A wrench made possible.   The spanner according to claim 18, wherein the control unit further includes a presser plate installed at one end of the quick release rod.   The control unit includes a quick release rod having a concave portion and a slope located on one side of the concave portion, and a plurality of steel balls positioned between the coupling portion and the quick release rod. Item 13. A spanner that allows for quick replacement of the working head and angle change according to Item 12.   The connecting portion of the grip includes a pin hole in which the coupling portion is mounted, a through hole in which the quick release rod is mounted, and a connecting portion in which both ends are connected to the pin hole and the through hole, and a plurality of steel balls are mounted 21. The spanner according to claim 20, wherein the operating head can be quickly changed and the angle can be changed.   A hole in which a spring and a steel ball are mounted is formed near the center of the bottom of the substantially concave space of the connecting portion of the grip, and a concave tank is provided in the quick release rod, and the quick release rod is the steel The quick change of the working head and the angle change according to claim 21, wherein when the ball is displaced relative to the concave tank, the steel ball enters the concave tank and the quick release rod is positioned. A wrench made possible.   The connecting portion is a pin, and when the quick release rod is pushed, the steel ball is positioned in the recess of the quick release rod. At this time, no pressure is applied to the pin. 21. The spanner according to claim 20, wherein the operating head can be quickly replaced and the angle can be changed.   The coupling part is a pin, the pin has a concave tank, and when the quick release rod is released, the steel ball is pushed out by the slope of the quick release bar and fits into the concave tank of the coupling part, and the operation 21. The spanner according to claim 20, wherein the head is locked and fixed, and the working head can be quickly replaced and the angle can be changed.   The control unit includes a cam and a plurality of steel balls positioned between the cam and the coupling unit, and the steel balls at each end abut on the coupling unit and the cam, respectively. The spanner according to claim 12, wherein the operating head can be quickly replaced and the angle can be changed.   When the cam is rotated, the steel ball is positioned in the concave portion or pushed out by the convex portion by the concave and convex portions of the cam, so that the coupling portion is released or fixed in the locked state, and the operating head is quickly 26. The spanner according to claim 25, wherein the operating head can be quickly replaced and the angle can be changed.   The connecting portion of the grip is provided with a hole for mounting the cam, the side surface is provided with a pinhole for mounting the coupling portion, and both ends are connected to the hole and the pinhole, respectively. 26. The spanner according to claim 25, wherein a hole is provided, and a plurality of steel balls are mounted in the communication hole.   26. The spanner according to claim 25, wherein the connecting portion is a steel ball, and the operating head can be quickly replaced and the angle can be changed.