JP2593028B2 - Caliper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caliper. More specifically, the present invention relates to a caliper provided with a cover having a grip portion on a slider movably provided with respect to the main scale.

[0002]

2. Description of the Related Art Vernier calipers have a vernier scale formed along the longitudinal direction of the main scale and a vernier scale formed on a slider, and the amount of movement of the slider depends on the rotation angle of the dial pointer. The dial display caliper, which is converted and displayed on the dial, the movement amount of the slider is converted into an electric signal by an encoder such as a photoelectric type, a capacitance type, or a magnetic type, and the movement amount based on the signal is digitally displayed. 2. Description of the Related Art A digital display type caliper for digital display on a container is known.

Conventionally, in any caliper, when measuring, grasp the object to be measured with one hand, hold the main scale with the other hand, and move the slider along the main scale while applying its thumb to the slider. And the inner and outer jaws provided on the main scale and the slider are brought into contact with each other between the measurement sites of the object to be measured. In this state, determine the dimensions of the DUT from the main scale and vernier scale with the vernier scale caliper, from the dial pointer with the dial display caliper, and from the display value of the digital display with the digital display caliper. Can be.

[0004]

However, in any of the conventional calipers, the slider has to be moved while holding the main scale with one hand at the time of measurement. Since the main scale has a rectangular cross section so that the slider can be moved, it is difficult to grasp the main scale with one hand. In particular, when the slider is moved to the vicinity of the effective measurement range with respect to the main scale, there is almost no place where the main scale is gripped. For example, the effective measurement range is 1
When trying to measure a dimension near 0 cm, the slider is moved close to the tip of the main scale, so that there is almost no place to grip the main scale. In addition, since the measurement is performed while directly holding the main scale with one hand, the heat of the hand is transmitted to the main scale, which may be affected by the heat. In particular, in the case of a digital display caliper, since the electrodes and the like are buried along the longitudinal direction of the main scale, it is conceivable that heat from the hand affects the measurement accuracy. In a factory or the like, the measurement may be performed while the operator holds the main scale with a hand dirty with oil or the like. In such a case, with a vernier scale caliper, the scale may be difficult to read with oil or the like. Further, in the case of a digital display caliper, if the operator performs measurement while holding the main scale with a hand to which chips or the like are attached, there is a problem that the chips may damage electrodes and the like.

[0005] It is an object of the present invention to provide a caliper which eliminates all of the conventional disadvantages, is excellent in operability and readability, and can reduce the influence of heat from the hand on measurement accuracy. It is in.

[0006]

For this purpose, the caliper of the present invention is applied to a main scale having one measuring jaw and to the object to be measured together with the one measuring jaw so as to be movable in the longitudinal direction of the main scale. A caliper comprising a slider having the other measuring jaw to be brought into contact therewith ;
The tubular cover having a grip on the cover and the outer periphery the periphery of the main beam on the opposite side is provided with measuring jaws, the mosquito
The bar is made of a material that is rigid enough not to be deformed by hand
It is characterized by being formed by .

[0007]

[Action] the slider cover having a and handgrip covers the periphery of the main beam on the opposite side is provided with measuring jaws, this
The cover has sufficient rigidity so that it does not deform even when grasped by hand
Since it is formed of a material, the measurer can move the slider while holding the grip portion of the cover with one hand. Therefore,
In addition to being easy to grasp, the cover can be grasped even in a state where the slider has been moved to the vicinity of the effective measurement range with respect to the main scale, so that the conventional problems can be eliminated. Also,
Since the main scale does not need to be grasped directly with the hand, there is no influence from the heat of the hand, the scale does not become difficult to read with oil, etc., and the measurement is performed while holding the cover with the hand to which the chips are attached. However, it is possible to eliminate the problem that the chips may damage the electrodes and the like.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a caliper of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view showing a caliper of the present embodiment. In the figure, 1 is a main scale, 11 is a slider provided movably in the longitudinal direction of the main scale 1, and 31 is a synthetic resin tubular cover provided on the slider 11.

On the base end side of the main scale 1, an inner measuring jaw 2 and an outer measuring jaw 3 are integrally formed on the upper and lower edges, respectively. Counterbore hole 4 for pulling out 1
Are drilled. A guide groove 5 and a graduation 6 are provided on the front side along the longitudinal direction thereof in parallel with each other, and a rack 7 is attached along a lower edge side in the guide groove 5.

The slider 11 has an inner measuring jaw 12 and an outer measuring jaw 12 which are brought into contact with the inner measuring jaws 2 and the outer measuring jaws 3 between the measuring parts of the object to be measured together with the upper and lower edges on the base end side. The jaws 13 are formed integrally with each other, and a clamp screw 14 and a pressing roller 15 for fixing the slider 11 to the main scale 1 are provided on the distal end side. On the front side, a dial 18 for indicating the distance between the measuring jaws 2, 12, 3, and 13 from a pointer 16 and a scale plate 17 to which rotation of a pinion (not shown) meshing with the rack 5 is transmitted. Is provided.

As shown in FIGS. 2 and 3, when the slider 11 is moved to the base end side of the main scale 1, the cover 31 is moved to the distal end side of the slider 11 (the measuring jaw 1).
2 and 13) to the distal end of the main scale 1, and a grip portion 32 in the shape of a square tube having a length covering the front end of the main scale 1, and a rear surface of the slider 11 integrally provided on the base end side of the grip portion 32. And a fixing plate portion 33 fixed by a set screw (not shown). The grip portion 32 has wavy irregularities 34 on its upper and lower surfaces.
Are formed along the longitudinal direction, and the pressing roller is covered with a cover 3 at a portion corresponding to the pressing roller 15.
Holes 36 are respectively formed in portions corresponding to the notches 35 exposed from 1 and the clamp screws 14. Holes 37 into which the set screws are inserted are formed at four corners of the fixing plate portion 33.

Therefore, in order to attach the cover 31 to the slider 11, insert the distal end of the main scale 1 into the grip portion 32, apply the fixing plate portion 33 to the back surface of the slider 11, and The cover 31 can be attached to the slider 11 by tightening the set screw inserted from above to the slider 11. In this state, if the clamp screw 14 is inserted from the hole 36 and screwed to the slider 11, all can be assembled.

In the measurement, as shown in FIG. 1, the gripper 32 of the cover 31 is grasped with one hand (usually the right hand), and the slider 11 is The measurement jaws 2, 12, 3, and 13 are moved along the longitudinal direction, and are brought into contact with the measurement site of the measured object. When the slider 11 is moved, a pinion (not shown) that meshes with the rack 7 is rotated, and the rotation is transmitted to the pointer 16. Therefore, if the value of the scale plate 17 indicated by the pointer 16 is read, measurement is performed. Joe 2,12,3
13, that is, the dimensions of the measurement site of the measured object can be measured.

Therefore, according to the present embodiment, the slider 11
Since the cover 31 that covers the circumference of the main scale 1 is attached to the opposite side of the measuring jaws 12 and 13, the measurer can move the slider 11 while holding the grip portion 32 of the cover 31 with one hand. Therefore, it is easy to grasp, and even when the slider 11 is moved to the vicinity of the effective measurement range with respect to the main scale 1, the grip portion 32 of the cover 31 can be grasped. It is also possible to eliminate the problem that there is no portion to be gripped during measurement in the vicinity of the measurement range.

Further, since the wavy unevenness 34 is formed in the grip portion 32 of the cover 31 along the longitudinal direction, the fingers of the hand holding the grip portion 32 conform to the unevenness, and the grip becomes easier. There is an advantage that even a hand to which oil or the like adheres is hard to slip. Furthermore, it is not necessary to hold the main scale 1 directly with your hand,
The scale is not affected by the heat of the hand, and the scale does not become difficult to read with oil or the like.

Although the caliper of the present invention has been described with reference to the preferred embodiment, the present invention is not limited to this embodiment, and various improvements and design changes can be made without departing from the gist of the present invention. Is of course possible.

For example, in the above embodiment, the length of the cover 31 is adjusted to the distal end side of the slider 11 (the measuring jaws 12 and
The cover 31 has a length that covers from the side opposite to the front end of the main scale 1. However, the length of the cover 31 is not limited thereto, and may be any length as long as it has a length that can be gripped with at least one hand. In addition, the cover 31 has a cylindrical shape in which the front end is closed.
You may make it open a front-end | tip part. Furthermore, cover 3
The material 1 is not limited to the synthetic resin described in the above embodiment, and may be any material having a rigidity such that it is not deformed even if it is grasped by hand.

In the above embodiment, the dial-type caliper was described. However, the present invention is not limited to this, and a vernier-caliper caliper or a digital-type caliper may be used. With the former caliper, the scale does not become difficult to read due to oil or the like even when working with hands to which oil or the like has adhered. Further, in the latter caliper, even when working with hands to which chips or the like are attached, the problem that the chips damage electrodes and the like can be eliminated.

[0019]

As described above, according to the caliper of the present invention,
A cylindrical cover that covers the circumference of the main scale is provided on the opposite side of the slider from the measurement jaw, so it is excellent in operability and readability,
In addition, the effect that the influence of heat from the hand on the measurement accuracy can be reduced can be expected.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a caliper of the present invention.

FIG. 2 is a perspective view showing a cover of the embodiment.

FIG. 3 is a sectional view showing a cover of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main scale 2 Inside measuring jaw 3 Outside measuring jaw 11 Slider 12 Inside measuring jaw 13 Outside measuring jaw 31 Cover 32 Handle part

Claims (1)

(57) [Claims] 1. A main scale having one measuring jaw, and a slider provided so as to be movable in the longitudinal direction of the main scale and having the other measuring jaw which comes into contact with the object to be measured together with the one measuring jaw. The caliper provided with the slider
The tubular cover having a grip on the cover and the outer periphery the periphery of the main beam on the opposite side is provided with said measuring jaws,
This cover has enough rigidity that it does not deform even if you hold it by hand.
A caliper characterized by being formed of a material .