JP5876446B2 - Torque handle - Google Patents

Description

  The present invention relates to a torque handle including a shaft connected to a device to be measured for torque and a handle main body gripped to rotate the shaft around an axis.

  Conventionally, a torque handle is used when diagnosing the state of an operating device that operates a disconnector, a circuit breaker or the like (hereinafter simply referred to as a disconnector) used in a power generation substation or the like. Specifically, the operating time and driving torque in the power operation of the disconnector are measured, and when the operating time is delayed or the driving torque becomes large, it is determined whether the operating device is in trouble or in trouble. A torque handle is used for power operation of an operating device, and a configuration in which a driving torque is measured by attaching a spring balance to the tip is generally known (for example, Patent Document 1).

JP 2012-155924 A

  However, with the conventional torque handle, the measurement result differs depending on the operation speed of the operator. For example, when the torque handle is operated early, the drive torque increases. Conversely, when the torque handle is operated slowly, the drive torque increases in the same manner. In addition, the spring balance can measure the maximum value of the driving torque in the operation of the torque handle, but cannot measure the transition of the torque in the continuous time during the operation of the torque handle. For this reason, the driving torque cannot be measured in detail, and it has been difficult to grasp signs of malfunctions at an early stage.

  In view of such circumstances, an object of the present invention is to provide a torque handle capable of grasping a sign of a malfunction at an early stage.

A torque handle according to the present invention is a torque handle including a shaft connected to a device to be measured for torque, and a handle body gripped to rotate the shaft around an axis, the shaft and the handle body being A recording that continuously records the correspondence between the urging portion that is connected in between and urged according to the torque applied to the handle body and the displacement of the urging portion and the operation time in the operation of rotating the handle body. possess a part, recording unit intersects a printing unit connected in a direction crossing the axis of the shaft, the combined axially connected to and axially to the handle body in a direction in contact with the rotation direction of the handle body A rotating unit that rotates around the axis independently of an operation of contacting the printing unit in a direction and rotating the handle body at a predetermined speed .

According to this configuration, the torque handle is used by connecting the shaft to the device to be measured for torque. When the handle body is gripped and rotated (operated) in the rotation direction of the device, the urging portion is urged toward the rotation direction of the handle body. The urging unit transmits a force urged as a torque for rotating the shaft around the axis to the shaft. Specifically, when the torque of the device is large, the urging unit is largely displaced by being urged more and transmits the urged force as torque that rotates the shaft around the axis to the shaft. The recording unit continuously records the correspondence between the operation of rotating the handle body, that is, the displacement of the urging unit from the time of driving to rotate the device to the end of the operation, and the operation time . Here, by operating the torque handle in accordance with the operation time of rotating the shaft in the past, it is possible to check the temporal transition of torque in the operation of rotating the shaft, and compared with the past torque transition. Thus, it is possible to detect signs of malfunctions at an early stage.

According to such a configuration, the printing unit is placed in contact with a predetermined position on the periphery of the rotating unit while the handle body is not rotated. Therefore, the printing unit prints at a predetermined position in the axial direction of the rotating unit that rotates at a predetermined speed. When the handle body is rotated so as to rotate the shaft, the rotating portion connected to the handle body moves in the rotation direction together with the handle body independently of the operation of rotating the handle body. Here, since the urging unit is gradually displaced according to the torque of the handle body, the printing unit is gradually displaced in the axial direction of the rotating unit that rotates at a predetermined speed according to the displacement of the urging unit. Print. Thereby, the rotating unit records both the time taken for the operation of rotating the handle body and the magnitude of the torque. Therefore, it is possible to confirm the transition of the torque in accordance with the operation time for rotating the handle body, and it is possible to detect a sign of a malfunction early compared to the past operation time and the transition of the torque.

  As one form of the above aspect, the rotating unit includes a drum unit having a paper feeding mechanism that feeds paper at a predetermined speed along the circumferential direction, and chart paper fed along the circumferential surface of the drum unit, and printing The part may abut on chart paper along the peripheral surface of the drum part.

  According to such a configuration, the chart paper is fed at a predetermined speed by the paper feeding mechanism, so that the transition of torque can be confirmed in accordance with the operation time for rotating the handle body, and the past operation time and torque can be confirmed. Compared with the transition of, it is possible to detect signs of failure early.

  Further, in the above aspect, the urging portion may be formed in a band plate shape, connected at one end to a direction intersecting the shaft axis, and fixed at the other end to the handle body.

  According to such a configuration, the urging portion bends according to the rotation of the handle body and the torque of the shaft. Since the urging unit is displaced according to the magnitude of the torque, the recording unit can record the magnitude of the torque.

  Moreover, in the said aspect, you may further provide the adjustment part which connects a handle | steering-wheel main body and a biasing part, and can slide along the longitudinal direction of a biasing part.

  According to such a configuration, the adjustment portion is slid along the longitudinal direction of the urging portion, so that the urging portion changes the amount of bending according to the torque, that is, the displacement amount. Specifically, the urging unit is displaced more greatly by connecting the position close to the other end of the urging unit to the handle body. On the other hand, the urging unit is displaced to a smaller extent by connecting the position of the adjustment unit farther from the other end of the urging unit to the handle body. In this manner, the recording unit can record the amount of displacement corresponding to the magnitude of the torque by sliding the adjustment unit. Therefore, a more versatile torque handle can be provided.

  As described above, according to the torque handle of the present invention, there is an excellent effect that a sign of malfunction can be grasped at an early stage.

FIG. 1A is a schematic front view of a torque handle, and FIG. 1B is a schematic side view of the torque handle according to the first embodiment of the present invention. The BB sectional view in Drawing 1 (b) of the torque handle concerning the embodiment is shown. The AA sectional view in Drawing 1 (a) of the torque handle concerning the embodiment is shown. FIG. 4B is a cross-sectional view taken along the line BB in FIG. 1B when the torque handle according to the embodiment is operated. FIG. 4A is a cross-sectional view taken along the line B-B in FIG. B sectional drawing is shown, FIG.4 (b) shows BB sectional drawing of FIG.1 (b) when a handle | steering-wheel is operated to the other. FIG. 5A shows a schematic diagram of a torque chart when the torque handle according to the embodiment is operated. FIG. 5A shows a torque chart when the torque handle is operated at an appropriate time, and FIG. Shows a torque chart when the torque handle is operated in a shorter time, and FIG. 5C shows a torque chart when the torque handle is operated in the reverse direction at an appropriate time. FIG. 6A is a schematic front view of a torque handle, and FIG. 6B is a schematic side view of the torque handle according to a second embodiment of the present invention. FIG. 7A shows a schematic cross-sectional view of the torque handle according to the same embodiment, FIG. 7A shows a schematic front cross-sectional view in which the adjustment portion is positioned near the other end of the biasing portion, and FIG. The schematic front sectional drawing which made the adjustment part located in the position far from the other end of the urging | biasing part is shown. The schematic sectional side view which made the adjustment part of the torque handle which concerns on the embodiment located in the position close | similar to the other end of a biasing part is shown.

  Hereinafter, a first embodiment of a torque handle according to the present invention will be described with reference to FIGS. 1 to 5.

  As shown in FIGS. 1A, 1B, 2, and 3, the torque handle 1 according to this embodiment includes a shaft 20 connected to a device to be measured for torque, and a shaft 20 A torque handle 1 including a handle main body 10 that is gripped to rotate about a shaft center, and is connected between the shaft 20 and the handle main body 10 and is biased according to the torque applied to the handle main body 10. And a recording unit 16 that continuously records the displacement of the urging unit 14 in the operation of rotating the handle main body 10 in terms of time. The torque handle 1 according to the present embodiment includes, as the handle main body 10, a housing portion 101 that houses the biasing portion 14, the recording portion 16, and the shaft 20, and a grip portion 102 that extends from the housing portion 101. doing.

  The casing unit 101 is formed in a box shape having a space inside, and accommodates the urging unit 14, the fixing unit 15, the recording unit 16, and the shaft 20 therein. In this embodiment, the housing | casing part 101 is formed in the rectangular shape which makes the surface of one end of a longitudinal direction curve shape. The casing 101 is connected to one end of the shaft 20 on the inner surface.

  The grip portion 102 is formed by extending from the other end in the longitudinal direction of the housing portion 101. And the holding | gripping part 102 is comprised so that it may cross | intersect the axis | shaft of the shaft 20 on the extension line | wire of the extending | stretching direction.

  The shaft 20 is formed such that one end in the axial direction is rotatably connected to the inner surface of the casing 101 and the other end protrudes from the casing 101. As a result, the shaft 20 is freely rotatable around the axis with respect to the housing unit 101. The shaft 20 is connected to a device such as a disconnector or a circuit breaker at the other end protruding from the housing unit 101. In the present embodiment, the shaft 20 is connected to the handle fitting body 200 shown in FIGS. 1A and 1B at the other end, and is connected to devices such as a disconnector and a circuit breaker via the handle fitting body 200. Is done.

  The torque handle 1 further includes a recording operation button 13 attached to the grip portion 102 and a fixing portion 15 that fixes the urging portion 14 and the housing portion 101.

  The recording operation button 13 is a button for operating the recording unit 16. The recording operation button 13 is pressed to drive a circuit and a motor (not shown) to operate the recording unit 16.

  The urging portion 14 is formed in a band plate shape, one end is connected in a direction intersecting the axis of the shaft 20, and the other end is fixed to the handle body 10. Specifically, the urging portion 14 is, for example, a leaf spring, is formed in a thin strip shape in the rotation direction of the handle body 10, one end portion is connected in a direction intersecting the axis of the shaft 20, and the other end is fixed. It is fixed to the housing part 101 via the part 15. In the present embodiment, the urging portion 14 is arranged with its longitudinal direction in the direction along the protruding direction of the grip portion 102. In other words, the urging portion 14 is arranged with the longitudinal direction thereof in a direction connecting the intermediate points in the width direction of the housing portion 101. The urging portion 14 has one end connected to the peripheral surface of the shaft 20 and the other end fixed to the inner surface of the housing portion 101 by the fixing portion 15.

  The fixing unit 15 includes a bolt 151 inserted through the urging unit 14, a nut 152 through which the bolt 151 is inserted between the urging unit 14 and the housing unit 101, and a bolt receiving unit 153 that is fixed to the housing unit 101. And have.

  The bolt 151 is inserted into a through-hole (not shown) opened in the plate thickness direction at the other end of the urging portion 14 and abuts against one surface of the urging portion 14 at the head. Then, the bolt 151 is screwed into the nut 152 and screwed into the bolt receiving portion 153.

  The nut 152 is screwed into the body portion of the bolt 151 and abuts against the other surface of the urging portion 14. The nut 152 abuts against the other surface of the urging portion 14 to fix the urging portion 14 with the head of the bolt 151.

  The bolt receiving portion 153 is fixedly provided on the inner surface of the housing portion 101 that exists in the axial direction of the body portion of the bolt 151 and is configured to be screwed into the bolt 151. The bolt receiving portion 153 is provided to position the head of the bolt 151 by screwing into the body portion of the bolt 151.

  The recording unit 16 is connected to the handle main body 10 in the direction in which the printing unit 161 is connected in a direction intersecting the axis of the shaft 20 and the direction of contact with the rotation direction of the handle main body 10, and is connected to the handle main body 10 and intersects the axial direction. And a rotating unit 160 that contacts the printing unit 161 and rotates around the axis at a predetermined speed.

  The printing unit 161 is formed in a rod shape, and one end thereof is connected to the peripheral surface of the shaft 20 in a direction intersecting the axial direction of the shaft 20. In the present embodiment, the printing unit 161 is connected to the shaft 20 with the longitudinal direction aligned with the direction along the longitudinal direction of the urging unit 14. The printing unit 161 is formed with the other end as a free end and has a length that allows contact with the rotating unit 160. And the printing part 161 is formed so that ink liquid can be discharged from the other end so that printing can be performed on the rotating part 160 at the tip of the other end.

  The rotating unit 160 includes a drum unit 163 having a paper feeding mechanism for feeding paper at a predetermined speed along the circumferential direction, a chart paper 164 fed along the circumferential surface of the rotating unit 160, and a radial direction of the drum unit 163. And a roller portion 162 that is continuously provided and abuts against the chart paper 164.

  The drum portion 163 is formed with an axial length that matches the length of the inner surface of the housing portion 101 in the width direction. The drum portion 163 is installed on the inner surface of the housing portion 101 so as to be in a direction in which the axial direction is in contact with the rotation direction of the handle body 10 to be rotated. Further, the drum portion 163 is disposed at a position where the tip of the other end side of the printing portion 161 contacts the circumferential surface, and more preferably, the drum portion 163 is the other end side of the printing portion 161 on the circumferential surface of the axial intermediate point. It arrange | positions in the position contact | abutted at the front-end | tip. The drum unit 163 is connected to a circuit and a motor (not shown), and is configured to rotate when the recording operation button 13 is pressed. In this state, the drum portion 163 is disposed so as to intersect the printing portion 161 at the circumferential surface at the axial intermediate point.

  The chart paper 164 is formed, for example, as paper as shown in FIGS. 5A to 5B that can indicate time on the horizontal axis and torque on the vertical axis. The chart paper 164 is formed so that it can be pulled out from the chart roll arranged in the radial direction of the drum section 163 by the rotation of the drum section 163 and the roller section 162. The printing unit 161 contacts the chart paper 164 along the peripheral surface of the drum unit 163. More specifically, the other end of the printing unit 161 is capable of printing on the chart paper 164 by contacting the chart paper 164 along the peripheral surface of the drum unit 163.

  Similarly to the drum portion 163, the roller portion 162 is formed with a length in the axial direction that matches the length in the width direction of the inner surface of the housing portion 101. The roller unit 162 is arranged at a position shifted from the extending position of the printing unit 161 so as not to hinder printing of the printing unit 161.

  The configuration of the torque handle 1 according to the present embodiment is as described above. Next, the operation of the torque handle 1 according to the present embodiment will be described.

  First, as shown in FIG. 3, the handle fitting body 200 is connected to the other end of the shaft 20, and the handle fitting body 200 is connected to a device that measures torque such as a disconnector and a circuit breaker. When the recording operation button 13 is pressed, the drum unit 163 rotates in the direction in which the chart paper 164 is pulled out. On the other hand, the roller portion 162 rotates in the opposite direction to the drum portion 163. Thereby, the chart paper 164 is pulled out from the chart roll, and printing by the printing unit 161 is started. At this time, since the handle body 10 is not operated in the rotational direction in which the shaft 20 is rotated, the printing unit 161 is arranged at the center in the width direction of the chart paper 164 as shown in FIGS. 5 (a) to 5 (c). Is printed.

  When the handle body 10 is rotated so as to rotate the shaft 20 around the axis at time t1 in the torque chart shown in FIG. 5A, the other end of the urging portion 14 is rotated in the direction of rotation from the fixed portion 15. Receives force in the direction of contact. On the other hand, since the other end of the urging portion 14 is fixed to the shaft 20, it does not move due to the influence of the magnitude of the torque of the device. Thereby, the urging | biasing part 14 is displaced so that it may curve toward the rotation direction of the handle main body 10. FIG. Further, the chart paper 164 moves in the rotation direction in accordance with the rotation of the handle body 10.

  Further, when the handle body 10 is rotated so as to rotate around the shaft 20 and becomes equal to the torque of the device connected to the handle fitting body 200, the shaft 20 rotates in the same direction as the rotation direction of the handle body 10. At this time, as shown in FIG. 4A, the urging portion 14 is maintained in a curved state. On the other hand, the printing unit 161 is not curved because the other end is in contact with the chart paper 164 as a free end. Further, the chart paper 164 moves in the rotation direction in accordance with the rotation of the handle body 10. Since the roller section 162 and the drum section 163 rotate and the chart paper 164 continues to be fed, the printing section 161 displays a graph as shown at time t1 in the torque chart of FIG. 164 is printed.

  When the operation of rotating the handle body 10 is completed at time t4 in the torque chart shown in FIG. 5A, the other end side of the urging portion 14 is released from the force pushed from the handle body 10. Moreover, the one end side of the urging | biasing part 14 stops in a predetermined position by completion | finish of the rotational operation of the shaft 20. FIG. Then, the urging unit 14 is displaced from the curved state to the linear state. As a result, the printing unit 161 prints again the center in the width direction of the chart paper 164 as shown at time t4 in the torque chart of FIG.

Example 1
When an operation of rotating the handle body 10 is performed at an appropriate time, a torque chart as shown in FIG. 5A is obtained. Specifically, in the present embodiment, when an operation of rotating the handle body 10 is performed between time t0 and time t4, the first torque peak is measured at time t1, and two at time t2. Eye torque peaks are measured. Then, the third peak of torque is measured at time t3. By operating the handle body 10 between the time t0 and the time t4 in accordance with the past operation time, it becomes possible to measure the difference between the current torque and the past torque at each of the times t1, t2, and t3.

(Example 2)
When the past operation time is made shorter than the operation time of FIG. 5A from time t0 to time t4, the peaks of torque appearing at time t1, time t2, and time t3 are shown in FIG. 5B. Become bigger. Therefore, it can be seen that it is important to operate the handle body 10 in accordance with the past operation time as in the first embodiment.

(Example 3)
As shown in FIG. 4 (b), even when the handle body 10 is rotated in the opposite direction to FIG. 4 (a), the torque is generated at times t1, t2, and t3 as shown in FIG. 5 (c). Can be measured. Therefore, even if the operation is performed in the opposite direction, the transition of torque can be measured in a predetermined time.

  As described above, the torque handle 1 according to the present embodiment includes the shaft 20 connected to the device to be measured for torque, and the handle body 10 gripped to rotate the shaft 20 around the axis. The handle body 10 is connected between the shaft 20 and the handle body 10 and is urged according to the torque applied to the handle body 10, and the urging portion in the operation of rotating the handle body 10. And a recording unit 16 that continuously records 14 displacements in time.

  According to such a configuration, the torque handle 1 is used by connecting the shaft 20 to a device to be measured for torque. When the handle body 10 is gripped and rotated in the rotation direction of the device, the urging unit 14 is urged toward the rotation direction of the handle body 10. The urging unit 14 transmits to the shaft 20 a force urged as a torque that rotates the shaft 20 around the axis. Specifically, when the torque of the device is large, the urging unit 14 is greatly displaced by being urged more, and the force urged as torque that rotates the shaft 20 around the axis is applied to the shaft 20. Tell. Then, the recording unit 16 continuously records the operation of rotating the handle body 10, that is, the displacement of the urging unit 14 from the time of driving to rotate the device to the end of time. Here, by operating the torque handle 1 in conjunction with the operation time of rotating the handle body 10 in the past, it is possible to confirm the temporal transition of the torque in the operation of rotating the handle body 10. Compared with the transition of, it is possible to detect signs of failure early.

  In the above-described aspect, the recording unit 16 is connected to the handle body 10 with the printing unit 161 connected in a direction intersecting the axis of the shaft 20 and the direction in contact with the rotation direction of the handle body 10, and connected to the handle body 10. And a rotation unit 160 that contacts the printing unit 161 in a direction intersecting with the axis and rotates about the axis at a predetermined speed.

  According to such a configuration, the printing unit 161 is placed in contact with a predetermined position on the periphery of the rotating unit 160 while the handle body 10 is not rotated. Accordingly, the printing unit 161 performs printing at a predetermined position in the axial direction of the rotating unit 160 that rotates at a predetermined speed. When the handle body 10 is rotated to rotate the shaft 20, the rotating unit 160 connected to the handle body 10 moves in the rotation direction together with the handle body 10. Here, since the urging unit 14 is gradually displaced according to the torque of the shaft 20, the printing unit 161 gradually moves in the axial direction of the rotating unit 160 that rotates at a predetermined speed according to the displacement of the urging unit 14. Prints the shifted position. Thereby, the rotating unit 160 records both the time taken for the operation of rotating the handle body 10 and the magnitude of the torque. Therefore, it is possible to confirm the transition of the torque in accordance with the operation time for rotating the handle body 10 and to detect the sign of the malfunction at an early stage as compared with the past operation time and the transition of the torque.

  As one form of the above aspect, the rotating unit 160 includes a drum unit 163 having a paper feeding mechanism that feeds paper at a predetermined speed along the circumferential direction, and a chart paper 164 fed along the circumferential surface of the drum unit 163. The printing unit 161 is in contact with the chart paper 164 along the peripheral surface of the drum unit 163.

  According to such a configuration, since the chart paper 164 is fed at a predetermined speed by the paper feeding mechanism, the transition of the torque can be confirmed in accordance with the operation time for rotating the handle body 10, and the past operation time can be confirmed. In comparison with the change in torque, signs of malfunction can be detected early.

  Moreover, in the said aspect, the urging | biasing part 14 is formed in strip | belt-plate shape, is connected to the direction which cross | intersects the axis | shaft of the shaft 20 at one end, and is fixed to the handle body 10 at the other end.

  According to such a configuration, the urging portion 14 bends according to the rotation of the handle body 10 and the torque of the shaft 20. Since the urging unit 14 is displaced according to the magnitude of the torque, the recording unit 16 can record the magnitude of the torque.

  Next, a second embodiment of the torque handle 1 according to the present invention will be described with reference to FIGS. 6 to 8, the parts denoted by the same reference numerals as those in FIGS. 1 to 5 represent the same configurations or elements as those in the first embodiment.

  As shown in FIGS. 6 to 8, the torque handle 1 according to the present embodiment connects the handle body 10 and the urging portion 14 in place of the fixing portion 15 of the first embodiment, and the longitudinal direction of the urging portion 14. Is different in that it further includes an adjustment unit 17 that can slide along the line. In addition, a pair of stopper receiving portions 18 for restricting the movement of the urging portion 14 in the width direction of the housing portion 101 is provided on the inner surface of the housing portion 101 at a position close to one end portion of the urging portion 14. ing. Furthermore, a stopper 161 </ b> A is provided at one end of the urging portion 14 at a position where it abuts against the pair of stopper receiving portions 18. As the adjusting portion 17 is provided, the housing portion 101 of the handle body 10 is provided with a slide hole 110 so that the adjusting portion 17 can be slid in the longitudinal direction. A scale 111 indicating the torque magnification in the torque chart printed on the chart paper 164 is formed in the housing unit 101 along the slide hole 110. Other configurations are the same as those of the first embodiment.

  As shown in FIGS. 7A and 7B, the adjustment unit 17 is connected to a knob 171 formed in a bolt shape, an internal slider 172 screwed into the knob 171, and the internal slider 172. And a holding portion 173 that holds the biasing portion 14.

  The knob portion 171 is disposed so that the body portion is inserted into the slide hole 110 and the head portion is exposed from the housing portion 101. The knob 171 has a larger head with respect to the width of the slide hole 110. The knob 171 is screwed to the internal slider 172 in a state where the body is inserted through the slide hole 110.

  The internal slider 172 is formed in accordance with the length between the inner surface of the housing unit 101 and the urging unit 14. The internal slider 172 has a screwing hole (not shown) that is screwed into the body of the knob 171 on one end in the length direction, and is connected to the holding portion 173 on the other end in the length direction.

  The holding portion 173 includes two wall portions that are separated according to the thickness of the urging portion 14 and a connection wall that connects one end of the wall portion. The holding portion 173 can hold the biasing portion 14 between the two wall portions. The holding portion 173 is slidable along the length direction of the urging portion 14 while being in contact with the urging portion 14. Further, each of the wall portions of the holding portion 173 is formed so as to protrude from the surface facing the urging portion 14. Specifically, each of the wall portions of the holding portion 173 is formed to protrude in a direction intersecting the longitudinal direction of the urging portion 14. Thereby, each of the wall portions of the holding portion 173 does not hinder the bending of the urging portion 14.

  Each of the pair of stopper receiving portions 18 is disposed adjacent to a wall surface adjacent to a position facing one end portion of the printing portion 161 in the direction along the rotation direction of the handle body 10 among the inner surface of the housing portion 101. The Each of the pair of stopper receiving portions 18 is formed in a rectangular parallelepiped shape and is disposed so as to sufficiently protrude from the wall surface of the housing portion 101. Specifically, one of the stopper receiving portions 18 protrudes to the extent that the other end of the printing portion 161 does not come into contact with the inner surface of the housing portion 101 by approaching and contacting the printing portion 161 by the rotation of the handle body 10. To do. Thereby, each of the pair of stopper receiving portions 18 prevents the tip end of the other end side of the printing portion 161 from swinging with respect to the drum portion 163, that is, contact with the inner surface of the housing portion 101. Specifically, one of the pair of stopper receiving portions 18 comes into contact with one end portion of the printing portion 161 that rotates in accordance with the rotation of the shaft 20, so that the position of the printing portion 161 and the position of the handle body 10 are more than that. Prevent slippage. Thereby, it can prevent that the front-end | tip side of the other end side of the printing part 161 contacts the inner surface of the housing | casing part 101, and is damaged.

  The stopper 161 </ b> A is provided on one end side of the printing unit 161 so as to increase the thickness of the printing unit 161 in the width direction. The stopper 161 </ b> A is in contact with one of the pair of stopper receiving portions 18, thereby preventing the tip on the other end side of the printing portion 161 from contacting the inner surface of the housing portion 101.

  The slide hole 110 is provided along the longitudinal direction of the housing unit 101. Specifically, the casing unit 101 is provided on one surface in the longitudinal direction, and is provided at a position that matches the axial position of the shaft 20 to which one end of the urging unit 14 is connected. The slide hole 110 is provided long along the longitudinal direction of the housing unit 101.

  The scale 111 is provided adjacent to the slide hole 110 along the longitudinal direction of the slide hole 110. The scale 111 is determined according to the length from one end of the urging unit 14 to the position held by the adjusting unit 17 and indicates the torque magnification shown in the torque chart. In the present embodiment, the scale 111 indicates the position of the edge of the slide hole 110 farthest from the shaft 20 as 1.0 and the position of the intermediate point of the slide hole 110 as 1.5 times. The position of the edge of the closest slide hole 110 is shown as 2.0 times.

  The configuration of the torque handle 1 according to the present embodiment is as described above. Next, the operation of the torque handle 1 according to the present embodiment will be described.

  First, the knob 171 is loosened from the internal slider 172, and is adjusted to a position 1.0 times the scale 111 as shown in FIGS. 6 (a), 6 (b), and 7 (a). As shown, the slide hole 110 is slid. Thereby, the internal slider 172 and the holding portion 173 slide together with the knob portion 171. At this time, the holding portion 173 slides along the longitudinal direction of the biasing portion 14 and holds the other end side of the biasing portion 14. Then, when the knob portion 171 is tightened with respect to the internal slider 172, the holding portion 173 is fixed at a position 1.0 times the scale 111.

  Next, the handle fitting body 200 is connected to the other end of the shaft 20, and the handle fitting body 200 is connected to a device that measures torque such as a disconnector and a circuit breaker. When the recording operation button 13 is pressed, the drum unit 163 rotates in the direction in which the chart paper 164 is pulled out. On the other hand, the roller portion 162 rotates in the opposite direction to the drum portion 163. Thereby, the chart paper 164 is pulled out from the chart roll, and printing by the printing unit 161 is started. At this time, since the handle body 10 is not operated in the rotational direction in which the shaft 20 is rotated, the center of the chart paper 164 in the width direction is printed.

  When the handle body 10 is rotated so as to rotate around the shaft 20, the other end portion of the urging portion 14 receives a force in a direction in contact with the rotation direction from the fixing portion 15. On the other hand, the other end of the urging portion 14 does not move because it is fixed to the shaft 20. Thereby, the urging | biasing part 14 is displaced so that it may curve toward the rotation direction of the handle main body 10. FIG. Further, the chart paper 164 moves in the rotation direction in accordance with the rotation of the handle body 10.

  Further, when the handle body 10 is rotated so as to rotate around the shaft 20 and becomes equal to the torque of the device connected to the handle fitting body 200, the shaft 20 rotates in the same direction as the rotation direction of the handle body 10. At this time, the urging unit 14 is maintained in a curved state. On the other hand, the printing unit 161 is not curved because the other end is in contact with the chart paper 164 as a free end. Further, the chart paper 164 moves in the rotation direction in accordance with the rotation of the handle body 10. Since the roller unit 162 and the drum unit 163 rotate and the chart paper 164 continues to be fed, the printing unit 161 prints a position shifted from the center in the width direction of the chart paper 164 according to the torque.

  By the way, when the torque of the handle body 10 is so large that the urging portion 14 is greatly curved, the tip on the other end side of the printing portion 161 is the axial end portion of the drum portion 163 (that is, the inner wall surface of the casing portion 101). Try to move to a position. At this time, the stopper 161 </ b> A comes into contact with one of the stopper receiving portions 18 existing in the moving direction of the printing portion 161. As a result, the printing unit 161 is pushed in the rotation direction of the handle main body 10, that is, the direction in which the shaft 20 is operated, by one of the stopper receiving portions 18 that abut on the stopper 161 </ b> A. Therefore, the printing unit 161 rotates in accordance with the rotation of the handle main body 10, and the other end of the printing unit 161 does not contact the inner surface of the housing unit 101. Thereby, the tip of the other end side of the printing unit 161 is prevented from coming into contact with the inner surface of the housing unit 101 and being damaged.

  At this time, since the printing unit 161 rotates with the rotation of the handle body 10, the other end of the printing unit 161 prints a linear torque chart on one end in the width direction of the chart paper 164. Thereby, the operator knows that the torque is large and the printing unit 161 is completely shaken.

  Therefore, when the knob 171 is loosened from the internal slider 172 and moved in the direction in which the slide hole 110 approaches the shaft 20, the holding portion 173 moves the other portion of the urging portion 14 as shown in FIG. A position closer to the shaft 20 from the end is held. When the knob 171 is moved to a position closer to the shaft 20, the urging portion 14 is curved at a portion between one end connected to the shaft 20 and a position held by the holding portion 173. Thereby, the urging | biasing part 14 becomes less curved even if it is the same torque.

  Specifically, when the knob portion 171 is moved to a position at a magnification of 2.0 times in accordance with the scale 111, the urging portion 14 bends by a half amount even with the same torque. By adjusting the knob 171 to the position of the appropriate scale 111, the stopper 161A does not come into contact with one of the stopper receivers 18, and the leading end of the other end of the printing unit 161 is not swung out of the chart paper 164. Torque can be printed.

  When the handle body 10 finishes the operation of rotating the shaft 20, the other end side of the urging portion 14 is released from the force pushed from the handle body 10. Moreover, the one end side of the urging | biasing part 14 stops in a predetermined position by completion | finish of the rotational operation of the shaft 20. FIG. Then, the urging unit 14 is displaced from the curved state to the linear state. Thereby, the printing unit 161 prints the center of the chart paper 164 in the width direction again.

  When the knob 171 is slid through the slide hole 110 according to the scale 111, it is actually required by multiplying the torque printed on the chart paper 164 by the magnification indicated on the scale 111. Torque is calculated.

  As described above, the torque handle 1 according to the present embodiment includes the adjustment unit 17 that connects the handle body 10 and the urging unit 14 and is slidable along the longitudinal direction of the urging unit 14.

  According to such a configuration, the adjustment unit 17 is slid along the longitudinal direction of the urging unit 14, so that the urging unit 14 changes the amount of bending according to the torque, that is, the displacement amount. Specifically, when the urging portion 14 is connected to the handle body 10 at a position close to the other end of the urging portion, the urging portion 14 is displaced more greatly. On the other hand, the urging unit 14 is displaced to a smaller extent when the adjusting unit 17 connects a position farther from the other end of the urging unit 14 to the handle body 10. As described above, the adjustment unit 17 is slid so that the recording unit 16 can record a displacement amount corresponding to the magnitude of the torque. Therefore, the more versatile torque handle 1 can be provided.

  It should be noted that the torque handle according to the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention. Further, the configurations and methods of the plurality of embodiments described above may be arbitrarily adopted and combined (even if the configurations and methods according to one embodiment are applied to the configurations and methods according to other embodiments). Of course, it is of course possible to arbitrarily select configurations, methods, and the like according to various modifications described below and employ them in the configurations, methods, and the like according to the above-described embodiments.

  For example, in the torque handle 1 according to the present embodiment, the device is not limited to a device such as a disconnector or a circuit breaker, and is a device that needs to measure torque, and any device that can connect the shaft 20 can be used. It is possible to measure the torque of the equipment.

  In the torque handle 1 according to the above embodiment, the urging portion 14 is described as a leaf spring. However, the urging portion 14 is formed of a rigid material, and the fixing portion 15 is formed of an elastic body. It may be. In this case, the configuration may be such that a pair of fixing portions 15 are provided, and each fixing portion 15 connects one surface of the urging portion 14 in the plate thickness direction and the inner surface of the housing portion 101.

  In the torque handle 1 according to the above embodiment, the recording unit 16 has been described as having the printing unit 161 and the chart paper 164. However, the printing unit 161 directly prints on the drum unit 163 without providing the chart paper 164. Form may be sufficient. Further, the recording unit 16 may be a type in which the urging force of the urging unit 14 is electrically read and the printing unit 161 prints on the chart paper 164 or the drum unit 163. Then, the recording unit 16 may electronically record the urging force of the urging unit 14 that is electrically read in an auxiliary storage device or the like.

  Further, in the torque handle 1 according to the above-described embodiment, the rotation of the roller portion 162, the drum portion 163, and the chart paper 164 may be configured so as to operate after winding in advance, in addition to using a motor. .

DESCRIPTION OF SYMBOLS 1 Torque handle 10 Handle main body 13 Recording operation button 14 Energizing part 15 Fixing part 16 Recording part 17 Adjusting part 18 Stopper receiving part 20 Shaft 101 Case part 102 Holding part 110 Slide hole 111 Scale 151 Bolt 152 Nut 153 Bolt receiving part 160 Rotating portion 161 Printing portion 161A Stopper 162 Roller portion 163 Drum portion 164 Chart paper 171 Picking portion 172 Internal slider 173 Holding portion 200 Handle fitting body

Claims (4)

A torque handle comprising a shaft coupled to a device to be measured for torque, and a handle body gripped to rotate the shaft about an axis,
The relationship between the biasing portion connected between the shaft and the handle body and biased according to the torque applied to the handle body, and the displacement of the biasing portion and the operation time in the operation of rotating the handle body is temporally continuous. It has a recording unit for recording and,
The recording unit is connected to the print unit connected in the direction intersecting the axis of the shaft and the print unit connected to the handle main unit in the direction in contact with the rotation direction of the handle main unit and in contact with the print unit in the direction intersecting the axial direction And a rotating part that rotates about the axis independently of an operation of rotating the handle body at a predetermined speed . The rotating unit includes a drum unit having a paper feeding mechanism that feeds paper at a predetermined speed along the circumferential direction, and chart paper fed along the peripheral surface of the drum unit. The torque handle according to claim 1 , wherein the torque handle abuts on a chart paper along the surface. 3. The torque handle according to claim 1, wherein the urging portion is formed in a band plate shape, one end thereof is connected in a direction crossing the shaft axis, and the other end is fixed to the handle body. . The torque handle according to claim 3 , further comprising an adjustment unit that connects the handle body and the urging unit and is slidable along a longitudinal direction of the urging unit.

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