JP2012018059A - Rail surface measuring device and measuring set - Google Patents

Abstract

To improve the transportability of a rail surface measuring device.
A rail surface measuring apparatus X includes a guide bar 1 having a predetermined length, and a measuring instrument 70 that measures the unevenness of the top surface 8 of the rail R by sliding the guide bar 1. In the guide bar 1, the first guide bar portion 10 and the second guide bar portion 20, the longitudinal end surface 16a of the first guide bar portion 10 and the longitudinal end surface 26a of the second guide bar portion 20 contact each other. The contact of the measuring instrument 70 between the usable state in which the guide bar portions 10 and 20 are arranged in a straight line and the transportable state in which the guide bar portions 10 and 20 overlap in the rail width direction Wr. A hinge 30 that pivotally connects the second guide bar portion 20 to the first guide bar portion 10 about a rotation axis that faces the displacement direction H of the child is provided.
[Selection] Figure 1

Description

  The present invention relates to a rail surface measuring device that measures unevenness of at least the top surface of a rail, and a measurement set including the rail surface measuring device.

  The unevenness of the rail top surface that comes into contact with the wheel of the railway vehicle causes noise when the wheel passes on the rail. Therefore, conventionally, in order to grasp the unevenness of the rail top surface, this unevenness is measured by a rail surface measuring device.

  As a conventional rail surface measuring apparatus, there exists a thing described in patent document 1, for example. This rail surface measuring device has a guide bar having a length of about 2 m, a bar holder for holding the guide bar in parallel with the rail top surface, and a measurement slidably attached to the guide bar. And a vessel. The measuring instrument has a roller that is in rolling contact with the rail top surface, and a recording pen that swings in accordance with the vertical movement of the roller.

Japanese Patent Laid-Open No. 11-153424

  However, the rail surface measuring apparatus described in Patent Document 1 has a problem that the guide bar has a length of about 2 m and is extremely difficult for the operator to carry. In particular, when measuring the unevenness of the rail top surface of an elevated part, it is necessary for the operator to climb up and down a narrow staircase with a rail surface measuring device. May come in contact with handrails of stairs, which is not only difficult to carry but also deforms the guide bar.

  Then, this invention pays attention to the said problem of a prior art, and aims at providing the rail surface measuring apparatus which can improve a transportability, and a measurement set.

The rail surface measuring device according to the invention for solving the above problems is
A guide bar having a predetermined length, a bar holder for holding the guide bar in parallel with the rail, and a measuring instrument which is slidably attached to the guide bar and measures unevenness of at least the top surface of the rail. In the provided rail surface measuring device,
The measuring device has a contactor that is in contact with the top surface and displaced in a direction perpendicular to the top surface when the guide bar is held in parallel with the rail by the bar holder,
The guide bar includes a first guide bar portion and a second guide bar portion, and a longitudinal end surface of the first guide bar portion and a longitudinal end surface of the second guide bar portion that are in contact with each other. In a usable state in which the longitudinal directions of the portions are the same direction and the guide bar portions are aligned, and when the guide bar is held in parallel with the rail top surface by the bar holder. With respect to the first guide bar portion around the rotation axis that faces the displacement direction of the contact between the guide bar portion and the transportable state in which the guide bar portions overlap each other in the rail width direction with respect to one guide bar portion. And a hinge for connecting the second guide bar portion so as to be swingable.

  In the rail surface measuring device, when the length of the guide bar in the longitudinal direction is in the transportable state, the first guide bar portion and the second guide bar portion overlap each other, and the length of the guide bar becomes short. Can be increased.

  Further, in the rail surface measuring apparatus, when the guide bar portions constituting the guide bar are in a usable state, the end surfaces of the guide bar portions are in contact with each other, so that the linearity of the guide bar can be ensured. In addition, since the rotating shaft faces the displacement direction of the contact, the longitudinal direction of each guide bar part can be transported, usable, or transitioned from the transportable state to the usable state. Will face each direction in a plane perpendicular to the displacement direction of the contact, and the longitudinal direction of each guide bar portion will not be inclined with respect to the displacement direction of the contact. For this reason, according to the rail surface measuring apparatus, the position of the measuring instrument in the displacement direction of the contact does not change regardless of the position of the measuring instrument on the guide bar in the usable state. Surface irregularities can be measured accurately.

  Here, in the rail surface measuring apparatus, the guide bar includes a state maintaining tool that maintains the usable state, and the state maintaining tool includes a connection screw having a screw portion, and a first guide bar portion. A first block fixed to a side portion on the end surface side and formed with a block end surface flush with the end surface; and a side portion of the end surface of the second guide bar portion in the usable state. The second block is fixed at a position facing the first block, and the end surface of the second guide bar portion is flush with the end surface of the second guide bar portion. A screw hole that penetrates in the longitudinal direction of the first guide bar portion and can be screwed with the screw portion of the connecting screw is formed, and the second block has the first block and the When the second block is facing, The threaded portion of the connecting screw is screwed into the screw hole of the first block may be formed further screwing can screw hole.

  According to the rail surface measuring device, when the guide bar is in a usable state, the screw portion of the connecting screw is screwed into the screw hole of the first block and the screw hole of the second block. The usable state can be maintained.

  Further, in the rail surface measuring apparatus, the first block has a block end surface flush with the end surface of the first guide bar portion, and the second block has a block flush with the end surface of the second guide bar portion. Since the end face is formed, the end face of the first guide bar portion and the end face of the second guide bar come into contact with each other when the guide bar is ready for use, and the block end face of the first block and the block end face of the second block And contact. Therefore, in the rail surface measuring apparatus, the linearity of the guide bar in the usable state can be more reliably ensured.

  Further, in the rail surface measuring apparatus, the hinge is fixed to the rotation shaft and the first guide bar portion, and is attached to the rotation shaft so as to be relatively rotatable. A second leaf member fixed to the second guide bar portion and attached so as to be relatively rotatable with respect to the rotation shaft, and the first leaf member and the second leaf member include: Each may be formed with a slidable contact surface that comes into contact with each other in the usable state and in sliding contact with each other in the process of changing from the usable state to the transportable state.

  In the rail surface measuring device, the end surface of the first guide bar portion and the second guide bar portion are in contact with each other in a usable state, and the sliding surface of the first leaf member in a different direction from these end surfaces Since the sliding contact surface of the second leaf member comes into contact, the linearity of the guide bar in the usable state can be more reliably ensured.

  Further, in the rail surface measuring apparatus, the bar holder includes a first bar holder attached to the first guide bar portion and the second bar holder attached to the second guide bar portion. And the first bar holder is fixed to an end of the first guide bar portion opposite to the end surface, and the second bar holder is fixed to the end surface of the second guide bar portion. When the first guide bar portion and the second guide bar portion overlap each other in the rail width direction in the transportable state, the first guide bar portion is fixed to the opposite end portion. The length of the first guide bar portion in the longitudinal direction so that the fixed first bar holder and the second bar holder fixed to the second guide bar portion do not interfere with each other. And the length of the second guide bar portion in the longitudinal direction It may be a different.

  In the rail surface measuring apparatus, the first guide bar portion and the second guide bar portion are provided in a state in which a bar holder is provided at each of the end portion of the first guide bar portion and the end portion of the second guide bar portion, and is transportable. Even when they overlap each other, interference between the bar holders can be avoided.

  In the rail surface measuring apparatus, the first guide bar portion is fixed to the first guide bar main body extending in the longitudinal direction of the first guide bar portion, and the first guide bar main body. A second guide bar main body extending in a longitudinal direction of the second guide bar portion, and the second guide bar main body. And an end face forming plate on which the end face of the second guide bar portion is formed, and the end face forming plate of the first guide bar portion is harder than the first guide bar main body. The end face forming plate of the second guide bar portion may be formed of a member harder than the second guide bar main body.

  In the rail surface measuring device, in order to reduce the weight of the first guide bar portion and the second guide bar portion, even if the main body of each guide bar portion is formed of a lightweight material, the end surface of each guide bar portion is made of a hard material. Can be formed. For this reason, according to the rail surface measuring apparatus, it is possible to reduce the weight of the guide bar and to suppress the deformation of the end surface of each guide bar portion due to repeated use.

The rail surface measurement set according to the invention for solving the above problems is
The rail surface measuring device and a case for housing the rail surface measuring device, wherein the case closes an opening of the housing recessed portion and a case main body in which a housing concave portion in which the rail surface measuring device is accommodated is formed. A lid, and an outer surface of the lid, which is attached to an upper surface of the lid facing the bottom surface of the storage recess, and on which the rail surface measuring device can be placed, and the device base is used for the use Of the both ends in the longitudinal direction of the guide bar in a possible state, a first device base that can contact one end side, a second device base that can contact the other end side, the first device base, When arranged between the second device table and one end of the guide bar in the longitudinal direction in the transportable state is in contact with the first device table or the second device table And a third device base that can contact the other end side. The features.

  In the rail surface measurement set, since the rail surface measurement device in the usable state and the rail surface measurement device in the transportable state can be placed on the lid of the case, the rail surface measurement device is placed on the case. It can be changed from the transportable state to the usable state, and from the usable state to the transportable state.

  Here, in the rail surface measurement set, the first device base and the second device base are fixed with a contact surface that is in contact with a lower surface of the guide bar in the usable state on the end side in the longitudinal direction. A block and a direction in which the upper surface of the lid spreads out, and is arranged at both ends of the fixed block in the lid longitudinal width direction perpendicular to the lid lateral width direction from the first device base to the second device base. A dimension of the fixed block in the longitudinal direction of the lid is larger than a dimension of the first guide bar part and the second guide bar part in the rail width direction, The pair of oscillating blocks includes an upright state in which the longitudinal direction of each oscillating block faces the lid lateral width direction, and an upright state in which the longitudinal direction of each oscillating block faces a direction perpendicular to the top surface of the lid. Can swing between states A first contact surface that is attached to the both ends of the fixed block, and in which the pair of swing blocks are flush with the contact surface of the fixed block in the sideways state, and the upright state A second contact surface facing the side surface of the guide bar when the lower surface of the guide bar is in contact with the contact surface of the fixed block. Also good.

  In the rail surface measurement set, the usable guide bar is sandwiched between the pair of swing blocks of the first device base and between the pair of swing blocks of the second device base. For this reason, according to the rail surface measurement set, even if an external force acts on the rail surface measurement device in a usable state placed on the lid of the case, such as when an operator contacts the rail surface measurement device, It can prevent falling from the top of the case.

  In the present invention, in the transportable state, the first guide bar portion and the second guide bar portion overlap each other, and the length of the guide bar becomes shorter than that in the usable state. Can be increased.

  Further, in the present invention, in order to improve the transportability of the rail surface measuring device, the guide bar is configured by two guide bar portions so as to overlap each other, but each guide bar portion is in a usable state. Since the end faces of the guide bar portions are in contact with each other, the linearity of the guide bar can be ensured. In addition, since the rotating shaft faces the displacement direction of the contact, the longitudinal direction of each guide bar part can be transported, usable, or transitioned from the transportable state to the usable state. Will face each direction in a plane perpendicular to the displacement direction of the contact, and the longitudinal direction of each guide bar portion will not be inclined with respect to the displacement direction of the contact. Therefore, according to the present invention, the position of the measuring instrument in the displacement direction of the contact does not change regardless of the position of the measuring instrument on the guide bar in the usable state. Can be measured accurately.

It is a perspective view of the rail surface measuring apparatus of the usable state in one Embodiment concerning this invention. It is a side view of the rail surface measuring apparatus of the transportable state in one Embodiment which concerns on this invention. FIG. 3 is a view taken in the direction of arrow III in FIG. 2. It is the IV-IV sectional view taken on the line in FIG. However, in the figure, the second guide bar portion and the second bar holder are omitted. FIG. However, in the same figure, the measuring instrument and each bar holder are omitted. It is a principal part top view of each guide bar part of the state which can be conveyed in one Embodiment which concerns on this invention. It is a principal part top view of each guide bar part of the usable state in one Embodiment which concerns on this invention. It is a perspective view of each guide bar part in one embodiment concerning the present invention. It is explanatory drawing which shows the structure of the measuring device in one Embodiment which concerns on this invention. It is a perspective view of the case in one embodiment concerning the present invention. 1 is a perspective view of a case and a rail surface measuring device in a transportable state according to an embodiment of the present invention. It is a perspective view of a rail surface measuring device of a case and a usable state in one embodiment concerning the present invention.

  Hereinafter, an embodiment of a rail surface measurement device according to the present invention and a measurement set including the same will be described with reference to the drawings.

  As shown in FIG. 10, the rail surface measurement set of the present embodiment includes a rail surface measurement device X and a case Y that houses the rail surface measurement device X.

  As shown in FIG. 1, the rail surface measuring device X includes a guide bar 1 having a predetermined length, bar holders 50 a and 50 b that hold the guide bar 1 parallel to the rail R, and slides on the guide bar 1. And a measuring instrument 70 that measures the unevenness of the rail head top surface 8 and the rail head side surface 9. The predetermined length here is, for example, about 2 m.

  When the lengths of the guide bars 1 in the longitudinal direction are matched, the first guide bar portion 10 and the second guide bar portion 20 having the predetermined length described above and the second length with respect to the first guide bar portion 10 are second. A hinge 30 that connects the guide bar portion 20 so as to be swingable, and a state maintaining tool 40 for maintaining a usable state in which the second guide bar portion 20 is aligned with the first guide bar portion 10. ,have.

  As shown in FIG. 8, the first guide bar portion 10 and the second guide bar portion 20 include guide bar main bodies 11 and 21 formed of an aluminum steel material having a substantially rectangular cross section, and guide bar main bodies 11 and 21. Of the both end faces, end face forming plates 17 and 27 fixed to one end face and end cover 19 and 29 fixed to the other end face are formed in a quadrangular prism shape. Of the both end faces of the first guide bar part 10 and the second guide bar part 20, the first end faces 16a, 26a that are one end face are formed by the end face forming plates 17, 27, and the second end face that is the other end face. Is formed by end covers 19 and 29. The end surface forming plates 17 and 27 are made of, for example, stainless steel that is harder than the aluminum forming the guide bar main bodies 11 and 21. Each square bar-shaped guide bar portion 10, 20 has first side surfaces 12, 22 and second side surfaces 13, 23 facing each other, and upper surface 14, 24 and lower surface 15, 25 facing each other. Yes.

  In the following description, for the sake of convenience, the direction between the upper surfaces 14 and 24 and the lower surfaces 15 and 25 of the guide bar portions 10 and 20 will be referred to as the height direction H, and the guide bar portions 10 and 20 will be referred to. , 20 between the first side surfaces 12 and 22 and the second side surfaces 13 and 23 is defined as a rail width direction Wr.

  As shown in FIG. 7, the hinge 30 is in contact with the first end surface 16 a of the first guide bar portion 10 and the first end surface 26 a of the second guide bar portion 20. As shown in FIG. 6, the second side surface 13 of the first guide bar portion 10 and the second side surface 23 of the second guide bar portion 20 are in contact with each other, as shown in FIG. The second guide bar portion 20 is swung with respect to the first guide bar portion 10 between the first guide bar portion 10 and the transportable state in which the second guide bar portion 20 is aligned in the rail width direction Wr. Connect movably.

  As shown in FIGS. 5 to 7, the hinge 30 is fixed to the rotation shaft 35 and the first end portion 16 including the first end surface 16 a of the first guide bar portion 10, and to the rotation shaft 35. The first leaf member 31 attached to be rotatable relative to the first end member 26 including the first end surface 26a of the second guide bar portion 20 and fixed to the rotary shaft 35. And a second leaf member 32 attached thereto.

  In the rotation shaft 35, the direction in which the rotation shaft 35 extends is directed to the height direction H of each guide bar portion 10, 20. The first leaf member 31 is fixed to the lower surface 15 side of the first end portion 16 of the first guide bar portion 10 and is attached to the lower portion in the direction in which the rotation shaft 35 extends so as to be relatively rotatable. ing. The second leaf member 32 is fixed to the upper surface 24 side of the first end portion 26 of the second guide bar portion 20 and is attached to an upper portion in the direction in which the rotation shaft 35 extends so as to be relatively rotatable. Yes.

  On the first leaf member 31, a sliding contact surface 31 a perpendicular to the rotation shaft 35 is formed on the second leaf member side in the height direction H. The second leaf member 32 is formed with a slidable contact surface 32a which is a surface perpendicular to the rotation shaft 35 and comes into contact with the slidable contact surface 31a of the first leaf member 31 in the usable state. .

  As shown in FIGS. 5 to 7, the state maintaining tool 40 is fixed to a connection screw 45 having a screw portion and a screw head, and the first side surface 12 on the first end portion 16 side of the first guide bar portion 10. And a second block 42 fixed to the first side surface 22 on the first end portion 26 side of the second guide bar portion 20.

  The first block 41 is formed with a block end surface 41 a flush with the first end surface 16 a of the first guide bar portion 10 and a screw hole 41 b penetrating in the longitudinal direction of the first guide bar portion 10. Further, the second block 42 is formed with a block end surface 42 a flush with the first end surface 26 a of the second guide bar portion 20, and a screw hole 42 b penetrating in the longitudinal direction of the second guide bar portion 20. .

  As shown in FIG. 7, in the usable state where the first end surface 16a of the first guide bar portion 10 and the first end surface 26a of the second guide bar portion 20 are in contact with each other, the block end surface 41a of the first block 41 and the first end surface 26a The block end surface 42a of the two block 42 is in contact with the screw hole 41b of the first block 41 and the screw hole 42b of the second block 42 to form a series of screw holes 41b and 42b. The thread portion of the connecting screw 45 can be screwed into the series of screw holes 41b and 42b. Furthermore, in the usable state, the sliding contact surface 31a of the first leaf member 31 and the sliding contact surface 32a of the second leaf member 32 shown in FIG.

  As shown in FIGS. 2 and 3, the bar holders 50 a and 50 b are a first bar holder 50 a attached to the first guide bar part 10 and a second part attached to the second guide bar part 20. And a bar holder 50b. The first and second bar holders 50a and 50b are both lower surfaces 15 and 25 of the guide bar portions 10 and 20, and are opposite to the first end portions 16 and 26 of the guide bar portions 10 and 20, respectively. The gate-type holding frame 51 fixed to the second end portions 18 and 28, and the operation lever 55 and the rail crimping plate 56 attached to the holding frame 51 are provided.

  The gate-shaped holding frame 51 connects the pair of side plates 52, 52 facing each other in parallel in the rail width direction Wr of the guide bar portions 10, 20, and the end portions of the pair of side plates 52, 52. And an upper plate 53. The distance between the pair of side plates 52 and 52 is set to be slightly larger than the width of the rail head portion 7. The upper plate 53 of the holding frame 51 is fixed to the lower surfaces 15 and 25 of the second end portions 18 and 28 of the guide bar portions 10 and 20 via a connecting plate 59.

  The operation lever 55 is swingably attached to the outer surface of one side plate 52 of the holding frame 51. The rail crimping plate 56 is attached to the inside of one side plate 52 of the holding frame 51 so as to be able to swing as the operation lever 55 swings. When the rail head 7 exists between the pair of side plates 52, 52 of the holding frame 51, the rail crimping plate 56 is in contact with the head side surface 9 and the holding state in which the rail head 7 is crimped to the head side surface 9. It swings between the disengageable state.

  As shown in FIGS. 2 and 11, the length of the second guide bar portion 20 in the longitudinal direction is the first length attached to the second end portion 18 of the first guide bar portion 10 in the transportable state. The length of the first guide bar 10 in the longitudinal direction so that the bar holder 50a and the second bar holder 50b attached to the second end 28 of the second guide bar 20 do not interfere with each other. Shorter than that.

  As shown in FIGS. 2, 4, and 9, the measuring device 70 includes a first roller 71a that is in rolling contact with the rail top surface 8, and a first recording pen 74a that writes the vertical movement of the first roller 71a on the recording paper S. A first arm 73a having a first recording pen 74a fixed to one end thereof, a first interlocking mechanism 72a that swings the first arm 73a in accordance with the vertical movement of the first roller 71a, a rail head A second roller 71b that rolls into contact with the side surface 9, a second recording pen 74b that writes the left-right movement of the second roller 71b on the recording paper S, and a second arm that has the second recording pen 74b fixed to one end. 73b, a second interlocking mechanism 72b that swings the second arm 73b according to the left-right movement of the second roller 71b, a driving roller 76 and a driven roller 77 around which the recording paper S is wound, and measurement on the guide bar 1 Vessel 7 It includes a paper feed mechanism 78 for the rotation of the drive roller 76 in response to the slide, the mechanism 72a, the meter frame 79 for accommodating a 72b, 78, the.

  The measuring instrument frame 79 houses the mechanisms 72a, 72b, and 78 described above, and a mechanism housing portion 79a that rotatably supports the driving roller 76 and the driven roller 77, and a guide bar engaging portion through which the guide bar 1 passes. 79b.

  As shown in FIG. 10, the case Y has a case main body 80 in which a storage concave portion in which the rail surface measuring device X is accommodated, a lid 81 that closes the opening of the storage concave portion, and the lid 81 can swing on the case main body 80. Hinges (not shown) connected to the lid, a lock 83 for maintaining the closed state of the lid 81 closing the opening of the housing recess, a handle 84 and device bases 90a, 90b attached to the upper surface 82 of the lid 81 , 95.

  The case Y is sized so that the rail surface measuring device X in the transportable state can be accommodated inside, and the rail surface measuring device X in the usable state does not fit inside. For this reason, the width dimension of the lateral width direction Wc of the case Y is the longitudinal dimension of the rail surface measuring device X in the transportable state, that is, the longitudinal dimension of the first guide bar portion 10 (= the guide bar 1 in the transportable state). The dimension in the longitudinal direction of the rail surface measuring device X in a usable state, that is, the dimension in the longitudinal direction of the second guide bar part 20 to the dimension in the longitudinal direction of the first guide bar part 10. Is shorter than the combined dimension (= dimension in the longitudinal direction of the guide bar 1 in a usable state).

  As shown in FIGS. 10 to 12, the device bases 90 a, 90 b, and 95 include a first device base 90 a and a second device base 90 b that are attached to both ends of the lid 81 in the lateral width direction Wc, There is a square columnar third device table 95 fixed between the device table 90a and the second device table 90b. The distance between the first device table 90a and the second device table 90b in the width direction Wc of the lid 81 is smaller than the length in the longitudinal direction of the guide bar 1 in the usable state as shown in FIG. 11, the length of the guide bar 1 in the transportable state is larger than the length in the longitudinal direction. In addition, the distance between the first device table 90a and the third device table 95 and the distance between the second device table 90b and the third device table 95 in the width direction Wc of the lid 81 are both in a transportable state. It is smaller than the longitudinal dimension of the guide bar 1.

  The first device base 90 a and the second device base 90 b have a prismatic fixing block 91 fixed to the upper surface 82 of the lid 81 with the longitudinal direction thereof facing the longitudinal width direction Wb of the lid 81, and And a prismatic swing block 92 that is swingably attached to both ends in the longitudinal direction.

  Of the side surfaces of the square columnar third device base 95, the surface facing the surface in contact with the upper surface 82 of the lid 81 forms a contact surface 95 a that can contact the guide bar 1.

  The fixed blocks 91, 91 of the first device base 90 a and the second device base 90 b are longer than the width dimension in which the longitudinal dimension is the distance between the first side surface 12 and the second side surface 13 of the guide bar 1. Although slightly larger, it is almost the same as this width dimension.

  The swing blocks 92, 92 of the first device base 90a and the second device base 90b are in a laid-down state in which the longitudinal direction faces the lateral width direction Wc of the lid 81, and the longitudinal direction is relative to the upper surface 82 of the lid 81. It is attached to the fixed block 91 so as to be able to swing between the upright state facing the vertical direction. As shown in FIG. 11, one of the pair of first side surfaces facing each other on the side surface of the prism-shaped rocking block 92 is in contact with the upper surface 82 of the lid 81 in the lying state, The other first side surface is flush with the contact surface 91a of the fixed block 91 when in a sideways state, and forms a first contact surface 92a that can contact the guide bar 1 together with the contact surface 91a of the fixed block 91. Further, as shown in FIG. 12, one of the pair of second side surfaces facing each other on the side surface of the prismatic swing block 92 is such that the swing block 92 is in an upright state, and When the lower surfaces 15 and 25 of the guide bar 1 in the usable state are in contact with the contact surface 91a of the fixed block 91, a second contact surface 92b that can contact the side surface of the guide bar 1 is formed. The distance between the second contact surfaces 92 a and 92 a of the two swing blocks 92 and 92 matches the dimension in the longitudinal direction of the fixed block 91. Therefore, when the two swing blocks 92 and 92 are in an upright state and the lower surfaces 15 and 25 of the guide bar 1 are in contact with the contact surface 91 a of the fixed block 91, the two swing blocks 92 are positioned between the two swing blocks 92. The guide bar portions 10 and 20 are sandwiched.

  Next, how to handle the rail surface measurement set described above will be described.

  When the rail surface measuring device X is transported, as shown in FIG. 10, the rail surface measuring device X is brought into a transportable state and is housed in the housing recess of the case body 80, and the lid 81 of the case Y is closed. . Then, with the handle 84 of the case Y, the rail surface measuring device X housed in the case Y is carried together with the case Y to the vicinity of the place where the rail R to be measured is laid.

  In addition, you may provide the state maintenance tool which maintains the transportable state of the rail surface measuring apparatus X. Like the state maintaining tool 40 that maintains the usable state, this state maintaining tool may be composed of two blocks and a connecting screw, or an engaging portion attached to the second guide bar portion. And an engaged portion that is attached to the first guide bar portion or the measuring instrument and that can engage the engaging portion.

  When using the rail surface measuring device X, first, the lid 81 of the case Y is opened, then the rail surface measuring device X in a transportable state is taken out from the case body 80 and the lid 81 is closed. Next, as shown in FIG. 11, the rail surface measuring device X in a transportable state is placed on the first device table 90 a and the third device table 95 provided on the upper surface 82 of the lid 81. At this time, both the swing blocks 92 of the first device base 90a and the second device base 90b are in the sideways state. In the rail surface measuring device X in the transportable state, the first side surface 12 of the first guide bar portion 10 faces downward, and the first side surface 22 of the second guide bar portion 20 faces upward. For this reason, in the rail surface measuring device X in the transportable state, the first side surface 12 of the first guide bar portion 10 has the contact surface 91a of the fixed block 91 and the first contact surface of the swing block 92 of the first device base 90a. It is placed on the first device table 90 a and the third device table 95 in a state of contacting the contact surface 95 a of the third device table 95.

  Next, the second end portion 28 of the second guide bar portion 20 located on the upper side with respect to the first guide bar portion 10 is lifted, and the second guide bar portion 20 is centered on the rotation shaft 35 of the hinge 30. And the second guide bar portion 20 is aligned with the first guide bar portion 10, that is, is in a usable state. At this time, the first side surface 22 of the second guide bar portion 20 contacts the contact surface 91a of the fixed block 91 and the first contact surface 92a of the swing block 92 of the second device base 90b. That is, in the usable rail surface measuring device X, the first side surface 12 of the first guide bar portion 10 has the contact surface 91a of the fixed block 91 and the first contact surface 92a of the swing block 92 of the first device base 90a. The first side surface 22 of the second guide bar portion 20 is in contact with the contact surface 95a of the third device base 95, and the first contact surface of the fixed block 91 and the first contact surface of the swing block 92 of the second device base 90b. It is placed on the first device table 90a, the second device table 90b, and the third device table 95 in contact with the 92a.

  Next, as shown in FIG. 12, the orientation of the rail surface measuring device X in the usable state is changed so that the lower surface 15 of the first guide bar portion 10 and the lower surface 25 of the second guide bar portion 20 face downward. The rail surface measuring device X in a usable state is placed on the first device table 90a, the second device table 90b, and the third device table 95. At this time, the lower surface 15 of the first guide bar portion 10 contacts the contact surface 91a of the fixed block 91 of the first device base 90a and the contact surface 95a of the third device base 95, and the lower surface 25 of the second guide bar portion 20. Contacts the contact surface 91a of the fixed block 91 of the second device base 90b.

  Next, the pair of swing blocks 92, 92 of the first device base 90a and the pair of swing blocks 92, 92 of the second device base 90b are brought into an upright state. As a result, the first side surface 12 and the second side surface 13 of the first guide bar portion 10 face the second contact surfaces 92b and 92b of the pair of swing blocks 92 and 92 of the first device base 90a, and the second guide The first side surface 22 and the second side surface 23 of the bar portion 20 are opposed to the second contact surfaces 92b and 92b of the pair of swing blocks 92 and 92 of the second device base 90b. That is, the usable guide bar 1 is sandwiched between the pair of swing blocks 92 and 92 of the first device base 90a and between the pair of swing blocks 92 and 92 of the second device base 90b.

  For this reason, even if a slight external force acts on the rail surface measuring device X in this state due to an operator's contact or the like, the angle of the second guide bar portion 20 with respect to the first guide bar portion 10 hardly changes. The possibility that the rail surface measuring device X falls from the lid 81 of the case Y can be extremely reduced.

  Next, as shown in FIG. 7, the connection screw 45 of the state maintaining tool 40 is screwed into the screw hole 41 b of the first block 41 and the screw hole 42 b of the second block 42 of the state maintaining tool 40. The second block 42 is connected. As a result, the contact between the first end surface 16a of the first guide bar portion 10 and the first end surface 26a of the second guide bar portion 20, and the contact between the block end surface 41a of the first block 41 and the block end surface 42a of the second block 42. Will be maintained. That is, the usable state of the guide bar 1 is maintained.

  Next, as shown in FIG. 1, the rail surface measuring device X in which the usable state is maintained is placed on the rail R to be measured. Specifically, the upper plate 53 of the holding frame 51 fixed to the second end 18 of the first guide bar 10 and the holding fixed to the second end 28 of the second guide bar 20. The rail surface measuring device X is placed so that the top surface 8 of the rail R contacts the upper plate 53 of the frame 51.

  Then, as shown in FIGS. 1 and 3, the operation levers 55 and 55 of the respective bar holders 50a and 50b are swung to hold the rail crimping plates 56 of the respective bar holders 50a and 50b from the detachable state. Displace to. As a result, the rail crimping plates 56 and 56 of the bar holders 50a and 50b are crimped to the rail head side surface 9, and the guide bar 1 in a usable state is fixed to the rail R. Thus, the setting of the rail surface measuring device X with respect to the rail R is completed.

  When the setting of the rail surface measuring device X is completed, as shown in FIG. 1, the measuring device 70 is slid with respect to the guide bar 1 in the usable state. When the measuring device 70 is slid, as shown in FIG. 9, the drive roller 76 and the driven roller 77 around which the recording paper S is wound are rotated by the paper feeding mechanism 78 and the recording paper S is fed. Further, the first roller 71a of the measuring instrument 70 moves up and down in the rail height direction H while rolling on the top surface 8 of the rail R. Further, the second roller 71b of the measuring instrument 70 moves left and right in the rail width direction Wr while rolling on the head side surface 9 of the rail R. The vertical movement of the first roller 71a is converted into the swing of the first arm 73a by the first interlocking mechanism 72a. Further, the left-right movement of the second roller 71b is converted into the swing of the second arm 73b by the second interlocking mechanism 72b. As a result, the first recording pen 74a fixed to the end of the first arm 73a swings, and the first recording pen 74a writes the unevenness amount of the top surface 8 on the recording paper S, and the second recording pen 74a. The second recording pen 74b fixed to the end of the arm 73b swings, and the unevenness amount of the head side surface 9 is written on the recording paper S by the second recording pen 74b.

  As described above, when the measuring instrument 70 is slid with respect to the guide bar 1 fixed to the rail R, the amount of unevenness on the top surface 8 and the amount of unevenness on the head side surface 9 of the rail R are recorded on the recording paper S. Is done.

  By the way, when the measuring instrument 70 is slid with respect to the guide bar 1 and the unevenness amount of the top surface 8 and the unevenness surface of the head side surface 9 of the rail R are measured, When the portion 20 is inclined and the first guide bar portion 10 and the second guide bar portion 20 are not aligned, the amount of unevenness on the top surface 8 of the rail R and the amount of unevenness on the head side surface 9 are accurately measured. I can't. This is because when the measurement frame 79 moves from the first guide bar part 10 to the second guide bar part 20 in a state where the first guide bar part 10 and the second guide bar part 20 are not aligned on a straight line, Since the position of the measuring instrument frame 79 in a plane perpendicular to the longitudinal direction of the first guide bar 1 changes, this measuring instrument can be used even if the top surface 8 and the side surface 9 of the rail R are not uneven. This is because the relative positions of the first roller 71a and the second roller 71b with respect to the frame 79 change.

  Therefore, when measuring the amount of unevenness on the top surface 8 of the rail R and the amount of unevenness on the head side surface 9, the first guide bar portion 10 and the second guide bar portion 20 are aligned in a straight line. Important for measuring quantity.

  In this embodiment, when each guide bar part 10 and 20 which comprises the guide bar 1 is usable state, it fixes to each guide bar part 10 and 20 between the 1st end surfaces 16a and 26a of each guide bar part 10 and 20, and each guide bar part 10 and 20. The block end surfaces 41a and 42a of the respective blocks of the state maintaining tool 40, and the sliding contact surfaces 31a and 32a of the hinge leaf members 31 and 32 fixed to the guide bar portions 10 and 20 contact each other. And since the angle of the 2nd guide bar part 20 with respect to the 1st guide bar part 10 is controlled by 0 degree, the linearity of the guide bar 1 in the usable state is securable. In particular, in this embodiment, as shown in FIGS. 5 and 6, each hinge leaf fixed to each guide bar portion 10, 20 with respect to the first end surfaces 16 a, 26 a of each guide bar portion 10, 20. The sliding contact surfaces 31a and 32a of the members 31 and 32 are vertical, and the angle of the second guide bar portion 20 with respect to the first guide bar portion 10 is restricted to 0 ° by two kinds of surfaces having different angles. The linearity of the guide bar 1 in the usable state can be ensured more reliably.

  As described above, in the present embodiment, in order to improve the transportability of the rail surface measuring device X, the guide bar 1 is configured by the two guide bar portions 10 and 20 and can be folded. In this case, since the linearity of the guide bar 1 is ensured, the unevenness amount of the top surface 8 of the rail R and the unevenness amount of the head side surface 9 can be accurately measured.

  Here, the noise when the wheel passes on the rail R is larger in the amount of unevenness of the rail top surface 8 that receives the load of the railway vehicle via the wheels than in the amount of unevenness of the rail head side surface 9. It is greatly affected. For this reason, accurate measurement of the unevenness of the rail top surface 8 is extremely important in predicting noise.

  In this embodiment, since the rotating shaft 35 faces the displacement direction (height direction H) of the first roller 71a which is a contact for measuring the unevenness of the rail top surface 8, it can be used in a transportable state. The longitudinal direction of each guide bar portion 10 and 20 is perpendicular to the displacement direction (height direction H) of the first roller 71a at any time during the transition from the transportable state to the usable state. It will face each direction in the surface, and the longitudinal direction of each guide bar part 10 and 20 will not incline with respect to the displacement direction of a contactor. For this reason, in this embodiment, in combination with the fact that the linearity of the guide bar 1 is ensured in the usable state, the measuring instrument 70 can be located at any position on the guide bar 1. The position of the measuring instrument frame 79 in the displacement direction (height direction H) of the one roller 71a does not change, and the unevenness of the rail top surface 8 can be measured more accurately.

  1: guide bar, 7: head, 8: top surface, 9: head side surface, 10: first guide bar portion, 11, 21: guide bar body, 12, 22: first side surface, 13, 14: second Side surface, 14, 24: upper surface, 15, 25: lower surface, 16, 26: first end portion, 16a, 26a: first end surface, 17, 27: end surface forming plate, 18, 28: second end portion, 20: 2nd guide bar part, 30: Hinge, 31: 1st leaf member, 31a, 32a: Sliding contact surface, 32: 2nd leaf member, 35: Rotating shaft, 40: State maintenance tool, 41: 1st block, 41a 42a: block end face, 41b, 42b: screw hole, 42: second block, 45: connecting screw, 50a, 50b: bar holder, 51: holding frame, 55: operation lever, 56: rail crimping plate, 70: Measuring instrument, 71a: first roller, 71b: second roller, 79: measurement Frame: 80: Case main body, 81: Lid, 82: Upper surface (of lid), 90a: First device stand, 90b: Second device stand, 90c: Third device stand, 91: Fixed block, 92: Swing block 91a, 95a: contact surface, 92a: first contact surface, 92b: second contact surface

Claims (7)

A guide bar having a predetermined length, a bar holder for holding the guide bar in parallel with the rail, and a measuring instrument which is slidably attached to the guide bar and measures unevenness of at least the top surface of the rail. In the provided rail surface measuring device,
The measuring device has a contactor that is in contact with the top surface and displaced in a direction perpendicular to the top surface when the guide bar is held in parallel with the rail by the bar holder,
The guide bar is
A first guide bar portion and a second guide bar portion;
The longitudinal end surface of the first guide bar portion and the longitudinal end surface of the second guide bar portion are in contact with each other, the longitudinal direction of each guide bar portion is the same direction, and each guide bar portion is in a straight line. The guide bar portions overlap each other in a rail width direction with respect to the first guide bar portion when the guide bars are held in parallel with the rail head top surface by the bar holder. A hinge that pivotably connects the second guide bar part to the first guide bar part around a rotation axis that faces the displacement direction of the contact between the transportable state, and
A rail surface measuring device characterized by comprising: In the rail surface measuring apparatus according to claim 1,
The guide bar has a state maintaining tool for maintaining the usable state,
The state maintaining tool is:
A connecting screw having a threaded portion;
A first block that is fixed to a side portion of the first guide bar portion on the end face side, and has a block end face that is flush with the end face;
A side portion of the end surface of the second guide bar portion, which is fixed at a position facing the first block in the usable state, and is a block end surface flush with the end surface of the second guide bar portion. A second block formed with,
Have
The first block is formed with a screw hole that penetrates in the longitudinal direction of the first guide bar portion and can be screwed with the screw portion of the connecting screw. The second block has the usable state. Then, when the first block and the second block are opposed to each other, there is a screw hole into which the screw portion of the connecting screw screwed into the screw hole of the first block can be further screwed. Formed,
A rail surface measuring device. In the rail surface measuring apparatus according to claim 1 or 2,
The hinge is fixed to the rotating shaft, a first leaf member fixed to the first guide bar portion and relatively rotatable with respect to the rotating shaft, and the second guide bar portion. And a second leaf member attached so as to be rotatable relative to the rotation shaft,
The first leaf member and the second leaf member are formed with slidable contact surfaces that come into contact with each other in the usable state and slidably contact with each other in the process from the usable state to the transportable state. ,
A rail surface measuring device. In the rail surface measuring device according to any one of claims 1 to 3,
The bar holder has a first bar holder attached to the first guide bar part, and the second bar holder attached to the second guide bar part,
The first bar holder is fixed to an end opposite to the end face of the first guide bar portion, and the second bar holder is opposite to the end face of the second guide bar portion. Fixed to the end,
The first bar holding tool fixed to the first guide bar portion when the first guide bar portion and the second guide bar portion overlap in the rail width direction in the transportable state. The length in the longitudinal direction of the first guide bar portion and the longitudinal direction of the second guide bar portion so that the second bar holder fixed to the second guide bar portion do not interfere with each other. The length is different,
A rail surface measuring device. In the rail surface measuring device according to any one of claims 1 to 4,
The first guide bar portion is fixed to the first guide bar main body extending in the longitudinal direction of the first guide bar portion and the first guide bar main body, and the end surface of the first guide bar portion is formed. An end face forming plate,
The second guide bar part is fixed to the second guide bar body extending in the longitudinal direction of the second guide bar part, and the end surface of the second guide bar part is formed. An end face forming plate,
The end surface forming plate of the first guide bar portion is formed of a member harder than the first guide bar main body, and the end surface forming plate of the second guide bar portion is a member harder than the second guide bar main body. Formed by,
A rail surface measuring device. A rail surface measuring device according to any one of claims 1 to 5, and a case for housing the rail surface measuring device,
The case includes a case main body in which a storage recess in which the rail surface measuring device is accommodated, a lid that closes the opening of the storage recess, an outer surface of the lid, and an upper surface of the lid that faces the bottom surface of the storage recess And a device table on which the rail surface measuring device can be placed, and
The device table is a first device table that can be contacted at one end side among both ends in the longitudinal direction of the guide bar in the usable state, and a second device table that can be contacted at the other end side; Of the both ends in the longitudinal direction of the guide bar which is arranged between the first device base and the second device base and is transportable, one end side is the first device base or the second device A third device stand that can contact the other end side when contacting the stand,
Rail surface measurement set characterized by that. In the rail surface measurement set according to claim 6,
The first device base and the second device base have a fixed block on which a lower surface on the end side in the longitudinal direction of the guide bar in the usable state is formed, and an upper surface of the lid is widened. A pair of oscillating blocks disposed at both ends of the fixed block in the longitudinal direction of the lid perpendicular to the lateral width direction of the lid from the first device base to the second device base. Have
The size of the fixed block in the lid vertical width direction is larger than the size of the first guide bar portion and the second guide bar portion in the rail width direction,
The pair of oscillating blocks includes an upright state in which the longitudinal direction of each oscillating block faces the lid lateral width direction, and an upright state in which the longitudinal direction of each oscillating block faces a direction perpendicular to the top surface of the lid. Attached to both ends of the fixed block so as to be able to swing between states,
Each of the pair of swing blocks includes a first contact surface that is flush with the contact surface of the fixed block in the sideways state, and the upright state, the A second contact surface facing the side surface of the guide bar is formed when the lower surface of the end portion side of the guide bar is in contact with the contact surface;
Rail surface measurement set characterized by that.

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