JPH067282Y2 - Tape measure digital measurement display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention converts the movement of a long member for winding and withdrawing into a rotary movement of an encoder plate, and the rotary movement of the encoder plate is converted into a digital pulse signal A. The present invention relates to a tape measure type digital measurement display device which measures and displays the movement amount of the elongated member by performing D conversion.

[Prior art]

A display portion is fixedly installed in the casing of this type of tape measuring type digital measuring display. Since it is necessary to connect the display section and the electronic circuit section in the casing with an electric wire cord, a hole for wiring is transparently provided in the display section mounting section of the casing,
A screw hole for mounting the display unit is drilled. In this kind of tape measuring type digital measuring display, a casing is usually attached to a stationary part or a moving part of a machine tool, and a tip of an elongated member is attached to the moving part or the stationary part. In this case, it is desirable that the extending portion of the elongated member from the casing move linearly in a predetermined angle direction with respect to the casing. With respect to the side surface of the casing from which the elongated member is extended, the linear moving direction of the extending portion of the elongated member is usually
It is set to be vertical. In this way, unless the angle of the extending direction of the elongated member with respect to the casing is specified as a predetermined angle, that is, the vertical direction, when the elongated member is paid out of the casing or rolled into the casing, the guide provided on the casing and the length A frictional force is generated between the long member and the long member, and the long member cannot move smoothly.

[Problems to be solved by the invention]

As described above, as a result of the movement direction of the elongated member relative to the casing being regulated, the mounting angle of the casing with respect to the machine tool is also regulated, and when the casing is attached to the machine tool, the display section is viewed from the operator side. The angle may be difficult. For example, it is often the case that the operator wants the display unit to face the operator horizontally, but the display unit is oriented vertically, and the display unit is positioned at an angle that is difficult for the operator to see. In order to deal with such a situation, conventionally, the manufacturer has prepared a plurality of types of casings having different mounting angles of the display unit with respect to the casing surface. However, in order to prepare multiple types of casings with different display mounting angles, it is necessary to prepare multiple types of casing manufacturing molds for each different display mounting angle, which increases the cost of this mold. There was a defect.

The present invention aims to eliminate the above defects.

[Means for solving problems]

The present invention is directed to a long member 20 wound in a casing 2.
The end of the elongated member 2 is placed outside the casing 2, and
In the tape measure type digital measuring display, which converts the amount of movement of 0 in the linear direction into the amount of rotation of the rotating body 4 built in the casing 2 and digitally displays the amount of rotation of the rotating body 4 on the display unit 38. , At least two mounting recesses 36, 46 for fitting the cover 38a of the display unit 38 on the same side wall of the casing 2 at right angles to each other, and the mounting recesses 36, 46 respectively. Through holes 42 and 47 for wiring, and the cover 38a of the display unit 38 is attached to one of the mounting recesses 36 and 46.
The hole 3 is formed in the other of the mounting recesses 36, 46.
It is characterized in that a cover 48 for closing 6, 6 is attached.

〔Example〕

Hereinafter, the structure of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

2 is a casing composed of a box portion 2a and a lid portion 2b,
The lid portion 2b is detachably fixed to the box portion 2a with a screw. A rotating body 4 is rotatably supported by a shaft 6 in the box portion 2a, and a reel 8 and an encoder plate 10 composed of a known slit plate are fixed to the rotating body 4. Reference numeral 12 is a pair of light emitting elements, and 14 is a pair of light receiving elements, which constitute an optical photodetector. It is fixed to 2a. The rotating body 4 is biased in a constant rotation return direction by a helical spring built in a spring holder 16. A plurality of elongate members 20 made of a flexible wire rope are wound around the reel 8 and the rear end thereof is fixed to the reel 8. 22
Is a substrate fixed to the box portion 2a, on which an electronic circuit is mounted. 26 is the reel 8 on the side wall of the box portion 2a.
Is a guide disposed tangentially to the outer periphery of the elongated member 20, into which the elongated member 20 is slidably inserted, and the tip of the elongated member 20 is guided to the outside of the casing 2. . A fitting 3 is attached to the tip of the elongated member 20.
4 is fixed. The guide 26 is positioned perpendicular to the right side surface of the casing 2. Reference numeral 36 denotes the front wall of the casing 2, that is, the cover plate 2b, and the cover 3 of the display unit 38.
8a is a mounting recess formed laterally corresponding to 8a,
The lower portion of the cover 38a is fitted in the recess 36. The screw rod inserted into the screw insertion hole of the cover 38a is screwed into two screw holes 40 formed in the recess 36 on the front wall of the casing 2, whereby the display portion 3 is formed.
8 is detachably fixed to the front surface of the casing 2.
A hole 42 for wiring is provided through the front wall of the casing 2, and the display unit 36 is connected to the electronic circuit of the substrate 22 and a connector in the casing 2 via a cord passing through the hole 42. A mounting recess 46 having the same size as the recess 36 is formed in the front wall 2b of the casing 2 at a right angle to the mounting recess 36, and a wiring hole 47 is located in the recess 46 of the casing 2. It is transparently installed on the front wall. A cover 48 is fitted into the recess 46, and holes are formed at four corners of the cover 48 with the same arrangement size as the arrangement size of the screw insertion holes of the display cover 38a, and the holes are inserted into the holes. The screw 50 is located in the recess 46 and is screwed into a screw hole formed in the cover plate 2b, whereby the cover 48 is detachably fixed to the cover plate 2b. The cover 48
Is fitted into the mounting recess 46 or 36, the upper surface of the cover 48 and the wall surface of the casing 2 are set to be flush with each other.

[Action]

Next, the operation of this embodiment will be described. As shown in FIG. 3, the front surface of the casing 2 is fixed to the side surface of the stationary portion 52 of a machine tool such as a drilling machine so as to face the operator, and the mounting bracket 34 is connected to the moving portion 54 via the bracket 56. In this case, the linear movement direction of the long member 20 must be set to be perpendicular to the long member feeding side surface of the casing 2, that is, the right side surface in FIG. When the casing 2 is oriented vertically as shown in FIG. 3, and the display portion 38 is attached to the attachment recess 36 as shown in FIG. 1,
The display unit 38 is vertically oriented, and for the operator,
The numbers on the display are sideways, making it difficult to see. Therefore, as shown in FIG. 3, when the casing 2 is arranged vertically, the display portion 38 is provided with the mounting recess 4 of the casing 2.
It is desirable to attach to 6. In order to assemble the measurement indicator in which the display section 36 is provided in the mounting recess 46 of the casing 2, after wiring the display section 36 and the inside of the casing 2 through the hole 47, the display is displayed in the mounting recess 46 on the front wall of the casing 2. The cover 38a is fitted and the cover 3 is screwed.
8a is fixed to the front wall.

On the other hand, the cover 48 is fitted in the recess 36 of the front wall of the casing 2, and the cover 48 is fixed to the front wall by screws. In this way, by using a casing made of one mold, a display unit is provided sideways on the wall of the casing,
It is possible to assemble and manufacture a display having a display unit in the vertical direction. The operator rotates the handle 58 to position the moving unit 54 at a desired origin, and operates the reset switch here to reset the counter in the electronic circuit in the casing 2 to zero, and the display unit 38 displays. Reset the display to zero. Next, when the handle 58 is rotated to move the moving portion 54 in the vertical direction in FIG. 3, the elongated member 20 is pulled out from the reel 8 in the casing 2 or is moved to the reel 8. The reel 8 is caught and rotates with the movement of the moving unit 54. The rotation of the reel 8 causes the rotating body 4 to rotate. The rotary motion of the rotating body 4 is converted into a directional pulse signal by the encoder plate 10 and the optical detector. This pulse signal is processed by an electronic circuit in the casing 2, and the moving amount of the moving portion 54, that is, the moving amount of the elongated member 20 in the linear direction is digitally displayed on the display unit 36. The casing 36 may be attached to the moving part of the machine and the elongated member 20 may be connected to the stationary part of the machine, or the machine for measuring the moving amount using the present invention is not limited to the drilling machine. However, it can be used for digital measurement display of moving parts of other machine tools and other machines.

〔effect〕

As described above, according to the present invention, it is possible to manufacture the casing having the display portions in the vertical direction and the horizontal direction from the casing made of one mold, so that the cost for manufacturing the casing mold can be reduced and the manufacturing cost can be reduced. There are effects that can be done.

[Brief description of drawings]

FIG. 1 shows a preferred embodiment of the present invention, FIG. 1 is an external view, FIG. 2 is a sectional view, and FIG. 3 is a front view showing a usage state. 2 ... Casing, 4 ... Rotating body, 6 ... Shaft, 8 ... Reel, 10 ... Encoder, 12 ... Light emitting element, 14 ...
… Light receiving element, 16 …… Spring holder, 18 …… Spiral spring, 20 …… Long member, 22 …… Board, 24 …… Tube part, 26 …… Guide, 34 …… Mounting bracket, 36 …… Mounting recess, 38 ... Display unit, 38a ... Cover, 40 ... Screw hole, 42 ... Hole, 44 ... Connector, 46 ... Mounting recess, 47 ... Hole, 48 cover, 50 ... Screw.

Claims (1)

[Scope of utility model registration request] 1. A long member 2 wound in a casing 2.
The front end of 0 is arranged outside the casing 2, the linear movement amount of the elongated member 20 is converted into the rotation amount of the rotating body 4 built in the casing 2, and the rotation amount of the rotating body 4 is displayed. In a tape measure type digital measuring display adapted to display digitally on the section 38, at least two mounting recesses 36, 46 for fitting the cover 38a of the display section 38 on the same plane of the casing 2 wall. Are formed at right angles to each other, and wiring holes 4 are formed in the mounting recesses 36 and 46, respectively.
2, 47 are transparently provided, the cover 38a of the display unit 38 is attached to one of the mounting recesses 36, 46, and the hole 36, 46 is closed in the other of the mounting recesses 36, 46. A tape-measurement type digital measuring and display device having a cover 48 attached.