JP6189072B2 - Measuring instrument - Google Patents

Description

  The present invention relates to a measuring instrument.

  As a measuring instrument, a caliper, a height gauge, a depth gauge, etc. are generally used. Here, FIG. 8 is a front view schematically showing a general caliper. FIG. 9 is a diagram for explaining the posture change of the slider at the measurement position of the measurement object.

  As shown in FIG. 8, a general caliper 100 includes a main scale 101 and a slider 102 slidably provided on the main scale 101. For example, a jaw 101 a and a slider 102 provided on the main scale 101. The length of the measurement target object is measured by sandwiching the measurement target object between the jaw 102a provided on the measuring object.

  Such a caliper 100 constitutes a non-Abbe measurement system in which an object to be measured, a length scale 103, and a pointer 104 are arranged in parallel. Therefore, as shown in FIG. 9, the change in the posture of the slider 102 changes depending on the position where the object to be measured is sandwiched between the jaws 101a and 102a, greatly affecting the reliability of the measured value.

  One of the factors that cause the posture fluctuation of the slider 102 is the measuring force. In order to ensure the reliability of the measurement value using the caliper 100, it is necessary to make the measurement force for pressing the object to be measured constant or control it to a desired measurement force.

  Therefore, calipers have been developed that can make the measuring force for pressing the object to be measured constant. Here, FIG. 10 is a diagram schematically illustrating a caliper 200 having a configuration capable of making the measurement force pressing the measurement target constant.

  As shown in FIG. 10, the caliper 200 includes a sliding portion 201 slidable in the longitudinal direction of the main scale 101 on the jaw 101 a of the main scale 101. The sliding portion 201 is urged toward the jaw 102 a side of the slider 102 by the elastic body 202. Then, the sliding of the sliding portion 201 is converted into the rotation of the pointer 203 provided on the sliding portion 201, and the pointer 203 indicates the value of the measuring force scale 204.

  When using such a caliper 200, the user pushes the slider 102 so that the pointer 203 indicates an appropriate value, and the value of the length scale 103 pointed by the pointer 104 of the slider 102 when entering the constant pressure region. Read.

  By the way, although not a caliper technique, Patent Document 1 discloses a technique of a micrometer provided with a measuring force measuring unit that measures a measuring force with which a spindle presses an object to be measured.

JP 2006-58319 A

  The caliper 200 shown in FIG. 10 has a problem that the end portion is large and heavy because the measuring force measuring mechanism is arranged at the end portion, and the operability is poor.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a measuring instrument that can sense a measuring force applied to an object to be measured and has good operability.

  A measuring instrument according to an embodiment of the present invention includes a main scale, a first slider that is slidable in the longitudinal direction of the main scale with respect to the main scale, and a contact portion between a measurement target. A second slider that is slidable in the longitudinal direction of the main scale with respect to the first slider, an elastic body that connects the first slider and the second slider, A display unit that displays a measuring force for pressing the measurement target object when the contact part is brought into contact with the measurement target object.

  In the measuring instrument, the elastic body is disposed so as to sandwich the second slider from the longitudinal direction of the main scale, and the first slider and the second slider are disposed in the longitudinal direction of the main scale. It is preferable to provide the 1st elastic body and 2nd elastic body which connect the parts which face each other.

  In the measuring instrument, it is preferable that the first elastic body and the second elastic body are arranged on both sides of the main scale in a transverse direction of the main scale.

  In the measuring instrument, it is preferable that the first elastic body and the second elastic body are arranged to be extendable and contractible in the longitudinal direction of the main scale.

  In the measuring instrument, the display unit includes a first pointer and a measurement force scale, and the first pointer is provided on one of the first slider and the second slider, and the measurement force The scale is preferably provided on the other side.

  The measuring instrument preferably includes a length scale provided on the main scale and a second pointer indicating the length scale and provided on the second slider.

  In the measuring instrument, a first jaw provided on the main scale, and a second jaw protruding in the same direction as the first jaw and provided as the contact portion on the second slider, It is preferable to provide.

  In the measuring instrument, it is preferable that a depth bar provided on the second slider is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the measuring force added to a to-be-measured object can be sensed, and a measuring device with good operativity can be provided.

It is a perspective view which shows schematically the caliper of embodiment. It is a perspective view which expands and shows the caliper of embodiment partially partially. It is a front view which partially enlarges and shows the caliper of embodiment. It is IV-IV arrow sectional drawing of the caliper of embodiment. It is VV arrow sectional drawing of the caliper of embodiment. It is VI-VI arrow sectional drawing of the caliper of embodiment. It is a front view which shows schematically the caliper of different embodiment. It is a front view which shows a general caliper schematically. It is a figure for demonstrating the attitude | position fluctuation | variation of the slider in the measurement position of a to-be-measured object. It is a figure which shows typically the caliper of the structure which can make constant the measuring force which presses a to-be-measured object.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. However, the present invention is not limited to the following embodiment. In addition, for clarity of explanation, the following description and drawings are simplified as appropriate.

  The measuring instrument of the present embodiment can be used for calipers, height gauges, depth gauges, and the like, and an application example to analog calipers will be described as an example.

  FIG. 1 is a perspective view schematically showing a caliper 1 of the present embodiment. FIG. 2 is a partially enlarged perspective view showing the caliper 1 of the present embodiment. FIG. 3 is a front view showing the caliper 1 of the present embodiment partially enlarged. 4 is a cross-sectional view taken along the line IV-IV in FIG. 5 is a cross-sectional view taken along line VV in FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. In the following description, the front-rear direction, the left-right direction, and the front-back direction are based on the usage pattern of the caliper 1 shown in FIG.

  As shown in FIGS. 1 to 3, the caliper 1 of the present embodiment includes a main scale 2, a first slider 3, a second slider 4, an elastic body 5, and a display unit 7.

  The main scale 2 is a long member. As shown in FIG. 1, one jaw (contact portion) 2 a of the outer measurement jaw is provided at the left end portion of the main scale 2. The jaw 2a protrudes rearward. Further, at the left end portion of the main scale 2, one jaw 2b of the inner measuring jaw is provided. The jaw 2b protrudes to the front side.

  As shown in FIGS. 4, 5, and 6, guide ridges 2 c extending in the left-right direction are provided on the front surface of the main scale 2. On the rear surface of the main scale 2, a guide protrusion 2d extending in the left-right direction is provided.

  As shown in FIGS. 1, 2, and 3, a length scale 2 e that a user visually observes is provided on the surface of the main scale 2. The length scale 2 e is arranged along the rear edge of the surface of the main scale 2. However, the length scale 2e in the illustrated example shows a part of the scale continuous in the left-right direction.

  The first slider 3 slides with respect to the main scale 2. As shown in FIGS. 4, 5, and 6, the first slider 3 of the present embodiment surrounds the front surface, the rear surface, and the back surface of the main scale 2 when viewed from the left-right direction. Specifically, the first slider 3 includes a front side portion 3 a disposed on the front side of the main scale 2, a rear side portion 3 b disposed on the rear side of the main scale 2, and a connecting portion disposed on the back side of the main scale 2. 3c.

  When viewed from the left-right direction, a housing portion 3d for housing the main scale 2 is formed inside the front side portion 3a, the rear side portion 3b, and the connecting portion 3c. The main scale 2 is slidably fitted in the housing portion 3d, and the surface of the first slider 3 is disposed at a height substantially equal to the surface of the main scale 2.

  As shown in FIGS. 4, 5, and 6, a guide groove 3e extending in the left-right direction is provided on the rear surface of the front side portion 3a. The guide protrusion 2c of the main scale 2 is engaged with the guide groove 3e. Guide ridges 3f are provided on the front surface of the front side portion 3a. As shown in FIGS. 2 and 3, protrusions 3g and 3h are provided at the left and right ends of the front surface of the front side portion 3a.

  As shown in FIGS. 4, 5 and 6, a guide groove 3i extending in the left-right direction is provided on the front surface of the rear side portion 3b. A guide protrusion 2d of the main scale 2 is engaged with the guide groove 3i. Guide ridges 3j are provided on the rear surface of the rear side portion 3b. As shown in FIGS. 2 and 3, protrusions 3k and 3l are provided at the left and right ends of the rear surface of the rear side portion 3b.

  The protrusions 3g and 3h protrude to the front side. The protrusions 3k and 3l protrude rearward. These protruding portions 3g and protruding portions 3h and protruding portions 3k and protruding portions 3l are arranged at positions facing each other across the main scale 2 in the front-rear direction. That is, the first slider 3 is formed in a substantially H shape when viewed from the front side.

  The connecting portion 3 c connects the front side portion 3 a and the rear side portion 3 b from the back side of the main scale 2. The front surface of the connecting portion 3 c is disposed substantially parallel to the back surface of the main scale 2 and is substantially in surface contact with the back surface of the main scale 2. The back surface of the connection part 3c is arrange | positioned substantially parallel to the surface which faces each other.

  The second slider 4 slides relative to the first slider 3 between the protrusion 3g (3k) and the protrusion 3h (3l) of the first slider 3. As shown in FIG. 5, the second slider 4 of the present embodiment surrounds the front surface, the rear surface, and the back surface of the first slider 3 when viewed from the left-right direction.

  The second slider 4 of the present embodiment includes a front side portion 4 a disposed on the front side of the first slider 3, a rear side portion 4 b disposed on the rear side of the first slider 3, and the first slider 3. The connection part 4c arrange | positioned at the back side is provided.

  A housing portion 4d for housing the first slider 3 is formed inside the front side portion 4a, the rear side portion 4b, and the connecting portion 4c when viewed from the left-right direction. The first slider 3 is slidably fitted in the housing portion 4d, and the surface of the second slider 4 is disposed at a height substantially equal to the surface of the first slider 3 and the surface of the main scale 2. ing.

  As shown in FIGS. 1, 2 and 3, the front side portion 4a is disposed on the front side of the front side portion 3a of the first slider 3 between the protruding portion 3g and the protruding portion 3h of the first slider 3. Yes. The length of the front side portion 4a in the left-right direction is that the second slider 4 slides along the first slider 3 with a predetermined length between the protruding portion 3g and the protruding portion 3h of the first slider 3. Is set to a length that can be

  As shown in FIG. 5, a guide groove 4e extending in the left-right direction is provided on the rear surface of the front side portion 4a. The guide groove 3e of the first slider 3 is engaged with the guide groove 4e. The front side portion 4a is provided with a through hole 4f penetrating in the left-right direction.

  The rear side portion 4 b is disposed on the rear side of the rear side portion 3 b of the first slider 3 between the projecting portions 3 k and 3 l of the first slider 3. The length in the left-right direction of the rear side part 4b is substantially equal to the front side part 4a.

  As shown in FIG. 5, a guide groove 4g extending in the left-right direction is provided on the front surface of the rear side portion 4b. The guide groove 3j of the first slider 3 is engaged with the guide groove 4g. The rear side portion 4b is provided with a through hole 4h penetrating in the left-right direction.

  As shown in FIGS. 1, 2, and 3, the other end 4i of the outer measurement jaw is provided at the left end of the rear portion 4b. The jaw 4i is disposed at a position where it does not interfere with the protruding portion 3k of the first slider 3, and protrudes to the rear side. Incidentally, the left side surface of the jaw 4i and the left side portion of the protruding portion 3k of the first slider 3 are arranged at substantially the same position in the left-right direction before the length of the measurement object is measured.

  Further, as shown in FIGS. 1, 2, and 3, the other end 4j of the inner measurement jaw is provided at the left end of the rear side portion 4b. The jaw 4j is connected to the rear side portion 4b via a connecting portion 4k protruding to the left side, and protrudes to the front side.

  Further, a pointer 4l is provided on the upper surface of the rear side portion 4b so as to face the length scale 2e of the main scale 2 in the front-rear direction. The pointer 4 l indicates the length scale 2 e of the main scale 2.

  As shown in FIG. 5, the connecting portion 4 c connects the front side portion 4 a and the rear side portion 4 b from the back side of the first slider 3. The front surface of the connecting portion 4 c is disposed substantially parallel to the back surface of the connecting portion 3 c of the first slider 3, and is substantially in surface contact with the back surface of the connecting portion 3 c of the first slider 3. The back surface of the connection part 4c is arrange | positioned substantially parallel to the surface which faces.

  As shown in FIGS. 1, 2, and 3, the elastic body 5 connects the first slider 3 and the second slider 4. The elastic body 5 according to the present embodiment is disposed so as to sandwich the second slider 4 from the left and right direction, and connects the portions where the first slider 3 and the second slider 4 face each other in the left and right direction. The elastic body 5 is disposed on both sides of the main scale 2 in the front-rear direction.

  Specifically, the elastic body 5 includes a first elastic body 5a, a second elastic body 5b, a third elastic body 5c, and a fourth elastic body 5d. The first elastic body 5a, the second elastic body 5b, the third elastic body 5c, and the fourth elastic body 5d are coil springs, and the expansion / contraction direction is arranged in the left-right direction. That is, the central axis of the first elastic body 5a, the central axis of the second elastic body 5b, the central axis of the third elastic body 5c, and the central axis of the fourth elastic body 5d extend in the left-right direction.

  Here, the first elastic body 5 a, the second elastic body 5 b, the third elastic body 5 c and the fourth elastic body 5 d slide the second slider 4 with respect to the first slider 3. At this time, the length and the elastic coefficient are set as appropriate so that the second slider 4 does not rotate. For example, the length and the elastic coefficient are set equal. As a result, the second slider 4 according to the present embodiment is disposed at a substantially central portion in the left-right direction of the first slider 3 in a state before measuring the length of the object to be measured.

  The first elastic body 5 a is disposed between the protruding portion 3 g of the first slider 3 and the second slider 4. The left end portion of the first elastic body 5 a is connected to the protruding portion 3 g of the first slider 3. The right end portion of the first elastic body 5 a is connected to the second slider 4.

  The second elastic body 5 b is disposed between the protrusion 3 h of the first slider 3 and the second slider 4. The left end portion of the second elastic body 5 b is connected to the second slider 4. The right end portion of the second elastic body 5 b is connected to the protruding portion 3 h of the first slider 3.

  The third elastic body 5 c is disposed between the protruding portion 3 k of the first slider 3 and the second slider 4. The left end portion of the third elastic body 5 c is connected to the protruding portion 3 k of the first slider 3. The right end portion of the third elastic body 5 c is connected to the second slider 4.

  The fourth elastic body 5 d is disposed between the protruding portion 3 l of the first slider 3 and the second slider 4. The left end portion of the fourth elastic body 5 d is connected to the second slider 4. The right end portion of the fourth elastic body 5 d is connected to the protruding portion 3 l of the first slider 3.

  The first elastic body 5a, the second elastic body 5b, the third elastic body 5c, and the fourth elastic body 5d are preferably reinforced by the reinforcing member 6. In the present embodiment, the reinforcing member 6 includes a first reinforcing member 6a that reinforces both the first elastic body 5a and the second elastic body 5b, and a third elastic body 5c and a fourth elastic body 5d. And a second reinforcing member 6b that reinforces the two together.

  The first reinforcing member 6a is a rod-like member and extends in the left-right direction. The first reinforcing member 6a passes through the inside of the first elastic body 5a, the through hole 4f of the front side portion 4a of the second slider 4, and the inside of the second elastic body 5b.

  The left end portion of the first reinforcing member 6 a is connected to the protruding portion 3 g of the first slider 3. The right end portion of the first reinforcing member 6 a is connected to the protruding portion 3 h of the first slider 3.

  As a result, the first reinforcing member 6a does not hinder the second slider 4 from sliding in the left-right direction, and the first elastic body 5a and the second elastic body 5a when the second slider 4 slides. The buckling of the body 5b can be suppressed.

  The second reinforcing member 6b is also a rod-like member and extends in the left-right direction. The second reinforcing member 6b passes through the inside of the third elastic body 5c, the through hole 4h of the rear side portion 4b of the second slider 4, and the inside of the fourth elastic body 5d.

  The left end portion of the second reinforcing member 6 b is connected to the protruding portion 3 k of the first slider 3. The right end portion of the second reinforcing member 6 b is connected to the protruding portion 3 l of the first slider 3.

  As a result, the second reinforcing member 6b does not hinder the second slider 4 from sliding in the left-right direction, and the third elastic body 5c and the fourth elasticity when the second slider 4 slides. The buckling of the body 5d can be suppressed.

  The display unit 7 displays the measurement force that presses the measurement target. As shown in FIGS. 2 and 3, the display unit 7 of the present embodiment includes a pointer 7a and a measuring force scale 7b. The pointer 7 a is provided on the surface of the front side portion 4 a of the second slider 4. The pointer 7a is disposed at a substantially central portion in the left-right direction on the surface of the front side portion 4a.

  The measuring force scale 7b is calculated based on the sliding amount of the second slider 4 derived from the elastic coefficients of the first elastic body 5a, the second elastic body 5b, the third elastic body 5c, and the fourth elastic body 5d. The relationship with the measurement force that presses the object to be measured is shown on a scale.

  The measuring force scale 7 b is provided on the surface of the front side portion 3 a of the first slider 3. The measuring force scale 7b is disposed so as to face the pointer 7a in the front-rear direction at a substantially central portion in the left-right direction on the surface of the front side portion 3a.

  Next, the usage method of the above-mentioned caliper 1 will be described. The user first slides the first slider 3 and sandwiches the object to be measured between the jaw 2a and the jaw 4i, for example. Then, from this state, the user slides the second slider 4 and presses the jaw 4i against the object to be measured so that the pointer 7a indicates the appropriate value of the measurement force scale 7b. When the pointer 7a indicates the appropriate value of the measuring force scale 7b, the user reads the value where the pointer 4l indicates the length scale 2e.

  Next, the friction of each element in the caliper 1 will be described. The frictional force of a slider in a general caliper varies depending on the position of the slider due to the influence of surface roughness and dust. However, the vernier caliper 1 according to the present embodiment allows the user to slide the first slider 3 between the jaw 2a and the jaw 4i when the user measures the length of the workpiece. Since the second slider 4 is pushed in after being sandwiched between the two, the frictional force Fs1 (see FIG. 3) between the main scale 2 and the first slider 3 can be ignored. The load Fw (see FIG. 3) acting on the measurement target and the measurement force (measurement force pressing the measurement target) P (see FIG. 3) indicated by the pointer 7a on the measurement force scale 7b are acting. The reaction relationship. Further, the elastic force between the first elastic body 5a and the second elastic body 5b and the elastic force between the third elastic body 5c and the fourth elastic body 5d are canceled out, respectively.

  Therefore, obtaining the measuring force P indicated by the pointer 7a on the measuring force scale 7b is substantially equal to obtaining the load Fw acting on the object to be measured, and the measuring force P indicated by the pointer 7a on the measuring force scale 7b is It can be obtained by subtracting the frictional force Fs2 (see FIG. 3) between the first slider 3 and the second slider 4 from the force Fm (see FIG. 3) for pushing the second slider 4 in. At this time, since the sliding amount of the second slider 4 when the jaw 4i is pressed against the object to be measured is small every time the object to be measured is measured, the frictional force Fs2 of the second slider 4 is substantially equal. Can be treated as constant.

  Therefore, when the measuring force P is sensed in the caliper 1 of the present embodiment, the frictional force of the first slider 3 can be eliminated and the frictional force of the second slider 4 is substantially constant. The force P, and thus the load Fw acting on the object to be measured can be sensed with high accuracy. As a result, the accuracy of length measurement can be improved.

  As described above, the caliper 1 according to the present embodiment has the measurement force sensing mechanism that senses the measurement force P that presses the object to be measured based on the sliding amount of the second slider 4 as the first slider 3 and the second slider 3. The slider 4, the elastic body 5, and the display unit 7, and each element of the measuring force sensing mechanism is not disposed near the jaw compared to the caliper 200 of FIG. 10. Therefore, an increase in size and weight in the vicinity of the jaw can be suppressed, which can contribute to an improvement in operability.

  Moreover, as compared with the caliper 200 of FIG. 10, the pointer 7a and the measuring force scale 7b for reading the measuring force, and the pointer 4i and the length scale 2e for reading the length are arranged at close positions. The movement of the line of sight can be reduced when the measuring force is read and when the length is read, which contributes to improvement in operability.

  Further, since there is no need to provide a sliding portion on the jaw as in the caliper 200 of FIG. 10, the jaw 2a can be made a rigid body, and the object to be measured can be stabilized when measuring the length of the object to be measured. The accuracy of length measurement can be improved.

  The present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

  For example, the above caliper 1 can be configured as a digital caliper. At this time, a scale having position information is provided inside the main scale 2, and a reading module for reading the position information of the scale is provided on the second slider 4 so as to straddle the surface of the main scale 2 to be exposed. Here, it is preferable that the measurement value is latched when the measurement force reaches an appropriate value. However, since the measurement force sensing mechanism is disposed in the vicinity of the second slider 4 provided with the reading module, Wiring, etc. can be handled easily.

  For example, a depth bar or the like can be provided in the same manner as a general caliper. At this time, the depth bar is provided on the second slider 4 so as to extend in the left-right direction. Here, the elastic body of the vernier caliper 1 of the above embodiment is elastic not only on the push side (sliding to the left side of the second slider) but also on the pulling side (sliding to the right side of the second slider). Demonstrate power. Therefore, the measurement force can be sensed not only when measuring the outer diameter of the measurement object but also when measuring the inner diameter and depth of the measurement object.

  For example, a configuration in which the first slider 3 and the second slider 4 are opposed to each other with an elastic body 5 in the transverse direction (front-rear direction) of the main scale with a space in the longitudinal direction of the main scale. Good. At this time, as shown in FIG. 7, the front side portion 3 a of the first slider 3 and the front side portion 4 a of the second slider 4, and the rear side portion 3 b of the first slider 3 and the rear side of the second slider 4. The portions 4b are separated in the front-rear direction, and the portions where the first slider 3 and the second slider 4 face each other in the front-rear direction are connected by an elastic body 5 such as a leaf spring.

  For example, although the caliper 1 described above is provided with the pointer 7a on the second slider 4 and the measuring force scale 7b on the first slider 3, it can be similarly implemented in the reverse configuration.

DESCRIPTION OF SYMBOLS 1 Vernier caliper 2 Main scale 2a, 2b Jaw 2c, 2d Guide protrusion 2e Scale 3 1st slider, 3a Front side part, 3b Rear side part, 3c Connection part, 3d Housing part 3e Guide groove 3f Guide protrusion 3g, 3h 3k, 3l Protruding portion 3i Guide groove 3j Guide protrusion 4 Second slider 4a Front side portion 4b Rear side portion 4c Connecting portion 4d Housing portion 4e Guide groove 4f Through hole 4g Guide groove 4i, 4j Jaw 4h Through-hole 4k Connecting portion 4l Pointer 5 Elastic body, 5a First elastic body, 5b Second elastic body, 5c Third elastic body, 5d Fourth elastic body 6 Reinforcing member, 6a First reinforcing member 6b Second reinforcing member 7 Display unit, 7a Pointer, 7b Measuring force scale 100 Vernier caliper 101 Main scale 101a Jaw 102 Slider 102a Jaw 103 Scale 104 Pointer 200 Vernier caliper 201 Sliding part 202 Elastic body 203 Pointer 2 04 Measuring force scale

Claims (7)

The main scale,
A first slider provided to be slidable in the longitudinal direction of the main scale with respect to the main scale;
A second slider having a contact portion with an object to be measured and provided slidable in the longitudinal direction of the main scale with respect to the first slider;
An elastic body connecting the first slider and the second slider;
A display unit for displaying a measurement force for pressing the measurement object when the contact part is brought into contact with the measurement object;
Equipped with a,
As the elastic body, the second slider is arranged so as to be sandwiched from the longitudinal direction of the main scale, and the facing portions of the first slider and the second slider are connected in the longitudinal direction of the main scale. first elastic body and a measuring instrument Ru and a second elastic member. The measuring instrument according to claim 1 , wherein the first elastic body and the second elastic body are arranged on both sides of the main scale in a transverse direction of the main scale. The measuring instrument according to claim 1 or 2 , wherein the first elastic body and the second elastic body are arranged to be extendable and contractible in a longitudinal direction of the main scale. The display unit includes a first pointer and a measurement force scale,
The measurement according to any one of claims 1 to 3 , wherein the first pointer is provided on one of the first slider and the second slider, and the measurement force scale is provided on the other. vessel. A length scale provided on the main scale;
Pointing to the length scale, a second pointer provided on the second slider;
The measuring instrument according to any one of claims 1 to 4 . A first jaw provided on the main scale;
A second jaw protruding in the same direction as the first jaw and provided as the contact portion on the second slider;
A measuring instrument according to any one of claims 1 to 5 . Measuring instrument according to any one of claims 1 to 6 comprising a Depusuba provided on the second slider.

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