JP4004504B2 - Gap measuring instrument - Google Patents

Description

  The present invention relates to a gap measuring device for measuring a gap distance between a side surface of a basic rail of a branching device and a facing surface of a fastener fixed to a Tongrel facing the side surface.

In order to ensure safety when a train passes through a turnout, the function check of the turnout is regularly performed. The functional inspection of the branching device is performed by measuring the gap between the side surface of the basic rail of the branching device and the facing surface of the fastener fixed to the opposite Tongrel. Conventionally, as a method for measuring the gap interval, for example, the thickness is 0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm, 0.7 mm, 0.8 mm, 1.0 mm step by step. Some have a plurality of gauges with different thicknesses, and various gauges are combined and inserted into a gap while changing the thickness (for example, see Patent Document 1) . For example, when the gauges of 0.5 mm, 0.3 mm, and 0.1 mm are combined and inserted exactly into the gap, the gap can be measured to be 0.9 mm.
Japanese Utility Model Publication No. 4-59403

  However, in the case of measuring with a plurality of conventional gauges, the measurement is performed by inserting the gap into the gap many times with various combinations of gauges and changing the thickness. There was a problem that errors were likely to occur.

  The present invention has been made paying attention to such a problem, and an object of the present invention is to provide a gap measuring device capable of shortening measurement time and improving measurement accuracy.

The gap measuring instrument according to the present invention measures the gap distance between the side surface of the basic rail of the branching device and the opposing surface of the fastener fixed to the Tongrel facing the side surface of the basic rail in parallel. And a reference member, an insertion member, and a measuring instrument, and the reference member has a reference surface for positioning in accordance with an end surface of the fastener that is perpendicular to the opposing surface. The insertion member integrally includes an insertion piece for insertion into the gap and a measurement piece extending in the same direction as the insertion piece, and the insertion piece can be reciprocated in a direction perpendicular to the reference plane. The insertion piece has a vertical surface with respect to the reference surface extending from the distal end to the proximal end side, and an inclined surface inclined with respect to the vertical surface so as to increase linearly from the distal end to the proximal end side, The measurement piece extends from the tip to the base end. Have the same inclined surface inclined at the inclined surface and the same angle of the insert relative to the longitudinal to be linearly increased, the measuring instrument dial gauge for displaying the length depending on the amount of extension of the projections The protrusion has a tip abutting against the same inclined surface so as to expand and contract by a length corresponding to the thickness of the position of the reference surface of the insertion member, and the thickness of the position of the reference surface of the insertion piece It is characterized by having a configuration for displaying the height.

  The gap measuring device according to the present invention is used as follows in order to measure the gap distance between the side surface of the basic rail of the branching device and the opposite surface of the fastener fixed to the opposite Tongler. First, the reference surface of the reference member is positioned according to the end surface of the fastener. At this time, since the end surface of the stopper metal is perpendicular to the opposing surface, the reference surface is perpendicular to the opposing surface and the side surface of the basic rail.

  The insertion piece of the insertion member is positioned in a direction perpendicular to the reference surface, and is inserted from the tip into the gap between the side surface of the basic rail and the opposing surface of the fastener. When the vertical and inclined surfaces of the insertion piece contact the side surface of the basic rail and the opposing surface of the fastener, and the insertion piece cannot be inserted any more, the thickness of the insertion piece at the reference surface position is the side of the basic rail and the fastener. It becomes equal to the space | interval of the clearance gap between these. The display of the measuring instrument read at this time is the gap between the side surface of the basic rail and the opposing surface of the fastener.

Since the measurement piece is integrated with the insertion piece and extends in the same direction, when the insertion piece is moved relative to the reference member and inserted from the tip into the gap between the side of the basic rail and the opposing surface of the fastener, the measurement piece also Move in the direction of the tip by the same distance as the insert. When the measurement piece moves, the tip of the projection of the measuring instrument that is in contact with the same inclined surface moves along the inclination on the same inclined surface. Since the same inclined surface of the measurement piece is inclined at the same angle as the inclined surface of the insertion piece, the amount of expansion / contraction of the projection of the measuring instrument along the same inclined surface matches the thickness of the position of the reference surface of the insertion member. Therefore, the gap interval can be easily obtained by simply reading the display of the measuring instrument. Further, since the gap interval can be measured by only inserting the insertion piece into the gap once, the measurement time can be shortened compared to the conventional method in which the gauge is inserted and measured many times. Moreover, since individual differences are unlikely to occur in the measurement values, the measurement accuracy can be improved.

  In the gap measuring instrument according to the present invention, the measuring instrument may be large digitally displayed or may have a light for illuminating the display so that the display can be easily read even at night. Further, the measuring instrument may be configured to obtain and display the thickness of the position of the reference surface of the inserted piece from the length of the inserted piece inserted into the gap. Any configuration may be used as long as the configuration is displayed.

  ADVANTAGE OF THE INVENTION According to this invention, the clearance gap measuring device which can aim at shortening of measurement time and improvement of a measurement precision can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a gap measuring device according to an embodiment of the present invention.
As shown in FIGS. 1 to 3, the gap measuring device 10 is configured to determine the gap 4 between the side face 1 a of the basic rail 1 of the branching device and the facing surface 3 a of the stopper 3 fixed to the opposing Tongler 2. Used to measure.

  As shown in FIGS. 1 to 3, the stopper 3 is provided at a position where the basic rail 1 and the tongrel 2 of the branching device are arranged substantially in parallel. The fastener 3 is fixed to the side surface 2 a of the Tongrel 2 with a bolt 5, and has a facing surface 3 a that protrudes toward the side surface 1 a of the basic rail 1. The opposing surface 3 a of the stopper 3 is substantially rectangular and is parallel to the side surface 1 a of the basic rail 1. The stopper 3 has two end faces 3b and 3c which are perpendicular to the facing surface 3a and perpendicular to the length direction of the tongrel 2.

As shown in FIGS. 1 to 6, the gap measuring device 10 includes a reference member 11, an insertion member 12, and a measuring instrument 13.
As shown in FIGS. 1 and 2, the reference member 11 includes a mounting material 14, a pair of side members 15, a beam member 16, and a reference member 17. The mounting material 14 is an elongated plate shape and has a flat mounting surface 14a. Moreover, the mounting material 14 has the rail 18 extended along the length direction from the center part 14b to the one end 14c on the surface on the opposite side with respect to the mounting surface 14a. Each side member 15 is fixed to both ends 14c and 14d of the mounting member 14 so as to extend in the vertical direction on the opposite side to the mounting surface 14a. The beam members 16 connect the side members 15 so as to form a rectangular frame together with the placing member 14 and the side members 15.

  As shown in FIG. 4, the reference material 17 is an elongated and slightly thick plate, and is provided at one end and projecting perpendicularly to the surface, and on one side surface from the center to the other end. And a flat reference surface 17b. As shown in FIG. 1 and FIG. 2, the reference member 17 has a fixed portion 17 a so that the reference surface 17 b faces the other end 14 d of the placement member 14 and is perpendicular to the length direction of the placement member 14. Is fixed to the side surface of the central portion 14 b of the mounting material 14. The reference material 17 is configured to be positioned in accordance with one end surface 3b of the fastener 3 when the placement material 14 is placed on the top surface 1b of the basic rail 1 with the placement surface 14a.

  As shown in FIGS. 1 and 2, the insertion member 12 integrally includes an arm 19, an insertion piece 20, and a measurement piece 21. The arm 19 is elongated and has an insertion side wall 19a and a measurement side wall 19b at both ends. The insertion side wall 19 a and the measurement side wall 19 b are provided so as to extend perpendicularly to the same side with respect to the length direction of the arm 19. The measurement side wall 19b has a moving means 22 that can move by being fitted to the rail 18 of the mounting material 14 on the inner wall surface. The arm 19 is configured such that the moving means 22 of the measurement side wall 19b is fitted to the rail 18 of the mounting material 14 so that the length direction is perpendicular to the mounting surface 14a, and the arm 19 can reciprocate along the rail 18. Has been.

  As shown in FIG. 5, the insertion piece 20 has a rectangular plate shape, a flat vertical surface 20c from the distal end 20a to the proximal end 20b side, and a vertical surface 20c to become linearly thick from the distal end 20a to the proximal end 20b side. And an inclined surface 20d inclined at a predetermined angle α. As shown in FIGS. 1 to 3, the insertion piece 20 has a base end 20 b such that the length direction is parallel to the length direction of the placement material 14 and the distal end 20 a faces the other end 14 d side of the placement material 14. Is fixed to the tip of the insertion side wall 19a. Further, the insertion piece 20 is fixed so that the vertical surface 20c is perpendicular to the reference surface 17b and the mounting surface 14a with the inclined surface 20d facing the arm 19 side. As shown in FIG. 1, the insertion piece 20 is parallel to the upper surface 1b of the basic rail 1 and to the reference surface 17b when the mounting material 14 is placed with the mounting surface 14a aligned with the upper surface 1b of the basic rail 1. It is configured to reciprocate in the vertical direction so that it can be inserted into the gap 4 between the side surface 1 a of the basic rail 1 and the opposing surface 3 a of the stopper 3.

  As shown in FIG. 6, the measurement piece 21 is a rectangular plate slightly thicker than the insertion piece 20, and is linearly flat from the distal end 21 a to the proximal end 21 b side and linearly from the distal end 21 a to the proximal end 21 b side. The same inclined surface 21d inclined at the same angle α as the inclined surface 20d of the insertion piece 20 with respect to the length direction so as to increase in thickness, and a parallel surface 21e provided in parallel to the flat surface 21c on the tip 21a side from the same inclined surface 21d. And have. As shown in FIGS. 1 and 2, the measurement piece 21 is disposed between the beam member 16 and the mounting member 14, and the base end 21 b is fixed to the outer wall surface of the measurement-side side wall 19 b to insert the insertion piece 20. And extend in the same direction. Further, the measurement piece 21 has the same inclined surface 21d facing the beam member 16 and the flat surface 21c facing the mounting member 14, and the flat surface 21c is inclined opposite to the arm 19 with respect to the mounting surface 14a. It is fixed like so.

  As shown in FIGS. 1 and 2, the measuring instrument 13 is composed of a dial gauge that displays the length according to the amount of expansion and contraction of the protrusion 13a. The measuring instrument 13 is designed to display the measured value largely digitally. The measuring instrument 13 is fixed to the beam 16 so that the extending and contracting direction of the protrusion 13a is perpendicular to the flat surface 21c of the measuring piece 21. In the measuring instrument 13, when the tip 13b of the projection 13a abuts on the same inclined surface 21d of the measurement piece 21, and the tip 20a of the insertion piece 20 is at the position of the reference surface 17b, the tip 20a of the projection 13a is the same as the same inclined surface 21d. It is being fixed so that it may be located in the boundary with the parallel surface 21e. The measuring instrument 13 is fixed so that the display becomes zero when the projection 13a contacts the parallel surface 21e of the measuring piece 21. As a result, the measuring instrument 13 expands and contracts the projection 13a by a length corresponding to the thickness of the position of the reference surface 17b of the insertion piece 20, and displays the thickness.

Next, the operation will be described.
The gap measuring device 10 is used as follows. First, the mounting surface 14 a is placed on the upper surface 1 b of the basic rail 1, and the reference surface 17 b of the reference member 11 is positioned so as to be aligned with one end surface 3 b of the fastener 3. At this time, since one end surface 3b of the fastener 3 is perpendicular to the opposing surface 3a, the reference surface 17b is perpendicular to the opposing surface 3a and the side surface 1a of the basic rail 1. In addition, since it is positioned on the two surfaces of the mounting surface 14a and the reference surface 17b, stable measurement can be performed without wobbling, and the measurement accuracy can be improved.

  The insertion member 12 is moved along the rail 18 with respect to the reference member 11, and the insertion piece 20 is inserted from the tip 20 a into the gap 4 between the side surface 1 a of the basic rail 1 and the facing surface 3 a of the stopper 3. At this time, since the measurement piece 21 is integral with the insertion piece 20 and extends in the same direction, the measurement piece 21 also moves in the direction of the tip 21 a by the same distance as the insertion piece 20. When the measurement piece 21 moves, the tip 13b of the projection 13a of the measuring instrument 13 that is in contact with the same inclined surface 21d moves along the inclination on the same inclined surface 21d. Since the same inclined surface 21 d of the measurement piece 21 is inclined at the same angle α as the inclined surface 20 d of the insertion piece 20, the amount of expansion and contraction of the protrusion 13 a of the measuring instrument 13 along the same inclined surface 21 d is the reference plane of the insertion piece 20. It corresponds to the thickness at the position 17b.

  When the vertical surface 20c and the inclined surface 20d of the insertion piece 20 come into contact with the side surface 1a of the basic rail 1 and the opposing surface 3a of the stopper 3 and can no longer be inserted, the thickness of the insertion piece 20 at the position of the reference surface 17b. Is equal to the gap 4 between the side surface 1a of the basic rail 1 and the opposing surface 3a of the stopper 3. The display of the measuring instrument 13 read at this time is the gap 4 between the side surface 1 a of the basic rail 1 and the facing surface 3 a of the fastener 3.

  Therefore, the interval of the gap 4 can be easily obtained simply by reading the display of the measuring instrument 13. Moreover, since the space | interval of the clearance gap 4 can be measured only by inserting the insertion piece 20 in the clearance gap 4 once, measurement time can be shortened compared with the conventional method of measuring by inserting a gauge many times. For this reason, it is possible to increase the safety of the branching device by increasing the time for visual inspection of other parts of the branching device such as a fastening device. Further, compared to the conventional method in which a gauge is inserted and measured many times, the work gloves to be worn during work are less contaminated, so the cost of purchasing work gloves can be reduced. Since it is difficult for individual differences to occur in measurement values, it is possible to improve measurement accuracy.

  The function check of the branching device that measures the distance between the gap 3 and the facing surface 3a of the stopper 3 fixed to the side wall 1a of the basic rail 1 of the branching device that faces the side of the Tongler 2 is mainly at night when there are few train operations To be done. Since the measuring instrument 13 is large and digitally displayed, the gap measuring device 10 is easy to read the display even at night and hardly causes a reading error.

It is a front view which shows the clearance gap measuring device of embodiment of this invention. It is AA sectional view taken on the line which shows the use condition of the clearance gap measuring device shown in FIG. It is a BB sectional view showing the use condition of the crevice measuring instrument shown in FIG. It is the (a) left view and (b) front view which show the reference | standard material of the clearance gap measuring device shown in FIG. It is the (a) left view and (b) front view which show the insertion piece of the clearance gap measuring device shown in FIG. It is the (a) left view and (b) front view which show the measurement piece of the clearance gap measuring device shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Basic rail 2 Tongue rail 3 Fastening bracket 4 Gap 5 Bolt 10 Gap measuring device 11 Reference member 12 Insertion member 13 Measuring instrument 14 Mounting material 15 Side material 16 Beam material 17 Reference material 18 Rail 19 Arm 20 Insertion piece 21 Measurement piece 22 Moving means

Claims (1)

A gap measuring device for measuring a gap interval between a side surface of a basic rail of a branching device and a facing surface of a fastener fixed to a tongrail facing in parallel with the side surface of the basic rail ,
A reference member, an insertion member, and a measuring instrument;
The reference member has a reference surface for positioning in accordance with an end surface of the fastener perpendicular to the facing surface ;
The insertion member integrally includes an insertion piece for insertion into the gap and a measurement piece extending in the same direction as the insertion piece, and the insertion piece is provided so as to be capable of reciprocating in a direction perpendicular to the reference plane. is, the insertion piece has a plane perpendicular to the reference surface extending proximally from the distal end, and an inclined surface inclined with respect to the vertical plane to be linearly increasing toward the proximal side from the distal end, the measuring The piece has the same inclined surface that is inclined at the same angle as the inclined surface of the insertion piece with respect to the length direction so as to be linearly thick from the distal end to the proximal end side,
The measuring instrument comprises a dial gauge that displays the length of the projection according to the amount of expansion / contraction of the projection, and the tip of the projection is the same as that of the insertion member so as to expand / contract by a length corresponding to the thickness of the reference surface. Abutting on an inclined surface, and having a configuration for displaying the thickness of the position of the reference surface of the insertion piece
Characteristic gap measuring instrument.

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