JP3205138U - Measuring instrument - Google Patents

Abstract

A measuring instrument that makes it easy to read a display unit of the measuring instrument. In the case of a normal M-type caliper, the main scale part 1 is integrated with the left jaw 3 and the indicator / slider part 2 is integrated with the right jaw 4, and these two parts after assembly are integrated. Each element function part has a structure in which the main scale part 1 can be moved right and left only by the slider part 3 in a straight line. When the jaw / display unit is looked down from above, a one-dimensional relationship is always maintained. [Selection] Figure 1

Description

  The present invention relates to a measuring instrument such as a caliper.

  The known caliper will be described as a representative example, but for both analog and digital instruments, the position of the display itself may be the point of the operator's normal posture, depending on the measurement location or measurement case of the object to be measured. There are measurement cases that cannot be read directly. In other words, there are cases where the measured value is read only after the wrist is turned back. For this reason, it is also true that there are inconveniences in the current equipment, such as the measurement accuracy sometimes goes wrong.

JP-A-8-193827

  A known caliper will be described as an example, but the left and right measuring elements for internal and external measurement, that is, the external measurement measuring jaw, or the internal measurement measuring beak, which can be rotated independently, are called normal names. In addition, a structure that can be easily fixed with a single touch at an arbitrary angle at the operator's discretion, and during measurement, the right jaw part (with regard to the caliper described below, I want to explain with a right-handed caliper) is the indicator. This is a technique in which the slider portion can be integrally fixed at an arbitrary angle, and the left jaw portion can be re-locked without rotating with the main scale.

  The purpose of the present invention is to provide a measuring device that makes it easy to read the display unit of the measuring device. Specifically, even in various measurement examples, it is not an unreasonable posture, but an operator's normal viewpoint, In order to make it possible to directly view a measured value display unit, a measuring device embodying an improved device incorporating a structure in which the display can be rotated or rotated on the X axis of the measuring device is provided.

The measuring instrument according to the present invention is
The main scale,
An internal measuring probe or an external measuring probe provided on the main scale and provided so as to be rotatable or rotatable around the main scale;
Including a display unit provided on the main scale and indicating a measurement length;
The internal measurement probe or the external measurement probe can change the relative positional relationship relative to the display unit by rotating or rotating around the main scale.

  The present invention takes into account the functions and functions of the main scale part, the related members and the display-related members, and the specifications as an improvement target (rotating the display) against the background of various measurement examples. Is reflected in the design and embodied.

  The present invention is a device related to the improvement of the numerical value display indicator portion of the length measuring device, in other words, the numerical value display indicator portion of the length measuring device, using calipers as a representative example. The specifications of the display may be analog or digital.

With a set operation as a simple setup before measurement, the measurement display unit can be read directly without difficulty from the normal operator's line of sight, so operability and measurement accuracy can be expected.
To give a specific example of the effect,
1: External measurement values can be read from directly above during general-purpose lathe machining.
2: When measuring the groove width, hole pitch, hole diameter, etc. existing on the plane using the beak portion, the display value can be read directly from directly above.
3: Some known calipers have a swivel mechanism functioning on the right jaw. It is possible to measure through the function. Moreover, effectiveness can be demonstrated also in the measurement of a level | step-difference part using a beak part.
4: There is a hole pitch caliper called back jaw type. This product has a specification in which a measuring element is provided in a direction perpendicular to the upper surface of the scale, and this product is a dedicated measuring tool that can directly read the pitch of holes in the horizontal plane from the upper surface. However, when the present invention method is applied to hole pitch calipers, it is possible to replace back jaw type hole pitch calipers.

General well-known caliper image Image of the present invention (top view) Image of the present invention Side view when the display portion is rotated 90 degrees clockwise.

  The device according to the present embodiment relates to an analog or digital length measuring device. The measurement numerical value interpretation unit (display) of the length measuring device is set to the center line in the scale axis direction = rotation axis, freely and arbitrarily. We propose a method for measuring length measuring instruments that can be positioned angularly.

  Specifically, in the device according to the present embodiment, a main scale 1 as a scale main body and a pair of probe arrangement blocks are arranged so as to coincide with the concentric wires of the main scale 1, and each of them is arranged. Reflecting the idea that the angular position in the axis rotation direction that can be set by the functional members on the concentric wire can be arbitrarily set, the structure can be assembled and fixed immediately with two lock bolts during operation. Is a measuring instrument having a structure that makes it possible to read the numerical measurement display device at an angular position that is most easily read by the operator with respect to the working surface angle of the measuring element.

  Drawing 1 will be explained. This figure is the case of this normal M-type caliper, the main scale part of the reference numeral 1 is the left jaw of the reference numeral 3, and the indicator / slider part of the reference numeral 2 is integrated with the right jaw of the reference numeral 4. Each of the two element function parts after assembly is structured so that the main scale part of reference numeral 1 can move to the left and right only on the X-axis only by the slider part of reference numeral 3. It is. When the jaw / display unit is looked down from above, a one-dimensional relationship is always maintained.

  FIG. 2 is an image diagram of the present invention. The relationship between the functional members for embodying the present invention will be described. Reference numeral 5 is a hollow shaft (named as a rotary function intermediate collar) in which the indicator / sladder of reference numeral 2 is rotated so that it can be rotated for rotation. is there. Reference numeral 6 denotes a main scale portion fixing rod bar which is combined with the main scale of reference numeral 1. The introduction of the member concept of reference numerals 5 and 6 is the main element member that makes the display unit rotatable or rotatable.

  Specifically, a series of operations in the case of rotating the display portion denoted by reference numeral 2 will be described. First, a description will be given of the engagement between the functional unit provided with the left jaw of reference numeral 3 and the main scale combined rod rod of reference numeral 6. Loosen the lock bolt A with knurling for the purpose of locking and releasing the rotation of the main scale of reference number 8. And the lock bolt B of the code | symbol 7 is also loosened simultaneously. In this state, with respect to the rotation of the slider part indicated by reference numeral 2 and the left and right jaw relations indicated by reference numerals 3 and 4, the three functional parts can be rotated at an arbitrary angle. That is, the reference numerals 2, 3 and 4 are in a state where they can be rotated independently independently.

  As described above, the rotating function half-finished color of reference numeral 5 and the indicator / slider of reference numeral 2 are assembled together (see FIG. 3 for an image of the integrated state). It is assumed that the bolt 7 can be freely rotated in the loosened state, but the X-direction relationship is such that only the rotation is possible while maintaining the positional accuracy. In other words, the structure can be rotated without so-called “backlash”. As will be described later, the relationship between the indicator 2 and the main scale 1 is assumed to be a structure in which rotation is impossible and sliding is possible only in the X direction. That is, when the reference numeral 2 is rotated, the main scale of the reference numeral 1 necessarily follows at the same time.

  Next, I would like to explain FIG. This image is an image when the display unit is rotated 90 degrees clockwise. The display will read from the direction of the arrow Z. For example, the setting example of this jou is effective when and is conscious of the measurement when the workpiece is mounted on the lathe spindle axis during lathe machining.

A specific series of operations when setting this state will be described with reference to FIG. Even when the display angle is changed, in most measurement cases, the left and right jaws denoted by reference numerals 2 and 4 are usually used on the same plane as shown in FIG. There are things to be careful about when setting. When the set bolts 7 and 8 are released and locked, it is preferable that the members 2 and 4 are in contact with each other. And the angle of only the display of the code | symbol 2 is rotated with the state maintained. In this case, as described above, the main scale portion also follows the angle. In this state, the lock bolts 7 and 8 are respectively locked. At this time, the left and right jaws of reference numerals 3 and 4 can be slid while maintaining this state in a plane. Although a description will be added here, it is necessary to make the inner diameter of the intermediate mechanism inner collar of the rotating mechanism 5 have a dimension specification that does not interfere with the main scale when sliding. However, it is preferable that the fitting is as severe as possible.

  The reason why the reference numerals 3 and 4 are brought into contact with each other is that the same plane confirmation setting block of reference numeral 10 fixed to the reference numeral 3 can be used. The plane confirmation setting block 10 is assumed to be present at the position of the drawing on the back side of the left jaw 3. If it is visually confirmed at a position apart from the reference numerals 2 and 4, and the respective lock bolts are tightened at that position, when the reference numerals 2 and 4 are widened (the display reading dimension becomes zero). )) Is problematic because there may be mutual interference with the measuring elements called beaks 9-1 and 9-2. There is a concern that it sometimes causes damage. In this respect, if the reference numeral 10 is used, this concern can be solved.

  However, there are cases where it is meaningful to use both of the reference numerals 3 and 4 without being identical in plan. As a known special caliper model, there is one in which a swivel mechanism is incorporated in the right jaw 4 portion. However, this publicly known specification is a specification of only the right side jaw portion of reference numeral 4 and has no relation to the beak portion, but is a specification advantageous when performing external measurement of a stepped portion. The present invention is also effective for this purpose. In this case, in the state where the reference numerals 3 and 4 are offset, the angle is set only in the clockwise direction because the reference numeral 10 exists. In the case of setting the angle in the reverse direction, it is performed at a position where the symbols 3 and 4 are separated. The specification of the present invention can be applied to both the jaw and the beak part, and the point becomes the appeal point.

  Although not shown in the drawing, unlike FIG. 3, if the display unit is set to be rotated by 90 degrees counterclockwise, in this case, both the beak measurement of reference numerals 3 and 4 are performed. When a hole is used to measure the hole pitch or groove width dimension on a horizontal plane, the effect of being able to read directly is produced. In this case, the beak portion is set on the same plane, and only the display portion is rotated angularly.

  The image shown in FIG. 1 is applied to a known M-type caliper. However, there are other examples of uses and applications of the present invention. For example, the hole pitch calipers are the same. In the case of most commercially available hole pitch calipers, when measuring the pitch between holes in a flat plate placed on a horizontal surface, the probe and display reading surface are set in the vertical direction (back jaw type hole pitch calipers are used. Except), that is, it is generally difficult to read directly from above. When the method of the present invention is applied, it can be determined that the measurement numerical indicator angle can be arbitrarily set, so that it is very useful.

  This can be said for both normal pitch vernier calipers and normal M-type calipers. However, if the device is not designed, the measurement is performed by changing the wrist of the hand holding the vernier caliper. Exist for a while. In that case, the measured value cannot be read directly in a state where the contact is kept in contact with the measurement object. It becomes possible to read directly only when the wrist is returned. At that time, you can understand that there are concerns that the measured values will change slightly. In such a case, the present invention is in a direction to solve the problem.

  The effectiveness of the present invention has been described with respect to known general-purpose M-type calipers and hole pitch calipers, but in addition to this, the present invention is utilized and it is classified as a caliper, but depending on the shape of the measuring element. Various types of vernier calipers with different names (generally classified as M-type vernier calipers), blade calipers, inside calipers, neck calipers, point nigis, etc. The present invention can also be applied to a length measuring instrument called a tracking gauge as a length measuring tool frequently used in the field.

  However, it is assumed that it is natural that the constituent members of the functional member have to be adapted to the specifications to some extent depending on the device to which the present invention is applied. However, the basic concept of incorporating the rotation mechanism of each element part with the center line part of the functional member as the main scale as a base line is utilized.

  Known vernier calipers, both analog and digital, are thought to have a refined current image as a result of a long history. And it is considered that the reality is that both users and usability are recognized and accepted as such. However, if you witness a product that embodies the functions of the present invention, it is expected to renew the recognition of convenience and effectiveness. Unless the cost is significantly increased, marketability is considered to exist.

  The measuring device according to the present invention is applicable to measuring devices such as calipers.

Code 1 Main scale code 2 Measured value display section / slider code 3 Left jaw code 4 Right jaw code 5 Rotating function intermediate color code 6 Main scale combined rod bar code 7 Right jaw rotation lock bolt 8 Left jaw rotation lock bolt Reference numeral 9-1 Internal measuring beak (synchronous interlocking unit on display)
9-2 Internal measurement beak (main scale fixing part)
Reference numeral 10: Coplanar confirmation block

Claims (1)

The main scale,
An internal measuring probe or an external measuring probe provided on the main scale and provided so as to be rotatable or rotatable around the main scale;
Including a display unit provided on the main scale and indicating a measurement length;
The measuring instrument that can change the relative positional relationship relative to the display unit by rotating or rotating around the main scale.

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