JP2003344036A - Rail wear inspection vehicle for trolley conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To introduce a rail wear inspection vehicle into a rail at an arbitrary location without selecting the location. <P>SOLUTION: Trolley driving rails 11 and 12 comprise a pair of left and right rail members 21 and 22 whose cross section is in a U shape where openings are allowed to face each other. Each of the rail members 21 and 22 has central webs 21a and 22a, and upper/lower flanges 21b, 22b, 21c, and 22c. Trolleys drive on the upper surface of the lower flanges 21c and 22c in both the rail members 31 and 32 while straddling over the upper surface. Left and right wheels 54 and 55 are supported by a body 51 in the rail wear inspection vehicle so that they approach or are separated in left/right directions. Both the wheels 54, and 55 in approach can pass the area between the upper flanges 21b and 22b on both the rail members 21 and 22, and at the same time both the rail members 21 and 22 in separation can be placed on the lower flanges 21c and 22c in the rail members 21 and 22 at the same sides of left/right. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail wear inspection vehicle for inspecting the wear of a rail on which a trolley travels in a trolley conveyor used in a production line of a factory, for example.

[0002]

2. Description of the Related Art As a rail wear inspection vehicle of this type, a trolley traveling rail is composed of a pair of left and right U-shaped rail members having a lateral cross section facing each other, and each rail member includes a central web and an upper and lower rail. In a trolley conveyor that has a flange and the trolley runs over the lower flange upper surface of both rail members, the left and right wheels on the vehicle body are on the lower flange of the rail member on the same side. It is known that the vehicle is mounted so that it can be mounted and the vehicle body is equipped with an inspection unit.

[0003]

In the wear inspection by the rail wear inspection vehicle, the rail wear inspection vehicle is put into the rail, and the left and right wheels are placed on the lower flanges of both rail members. The surface to be inspected by the rail is inspected by the inspection unit while pulling.

The rail wear inspection vehicle can be put into the rail only at a specific place. The specific location is, for example, a location where a part of the rail member can be separated for maintenance of the rail. Regardless of inspecting the rail over the entire length, it is inconvenient to inspect only a limited area of the rail because such a place where the rail can be inserted is limited.

An object of the present invention is to provide a rail wear inspection vehicle capable of inserting the rail wear inspection vehicle into the rail at any place without choosing a place.

[0006]

In the rail wear inspection vehicle according to the present invention, the trolley traveling rail is composed of a pair of left and right U-shaped cross-section rail members facing each other, and each rail member has a central portion. It has a web and upper and lower flanges.
In a trolley conveyor in which the trolley runs across these, the left and right wheels are supported by the vehicle body so that they can approach and separate in the left-right direction, and both wheels when approaching are the upper flanges of both rail members. Both wheels can pass through the space and can be placed on the lower flanges of the rail members on the same side when the wheels are separated.

In the rail wear inspection vehicle according to the present invention, when the rail wear inspection vehicle is put into the rail, both wheels are passed between the upper flanges of the left and right rail members while the left and right wheels are brought close to each other. Then, the wheels may be separated from each other and placed on the lower flanges of the rail members. Therefore, the rail wear inspection vehicle can be put into the rail at any place without choosing the place.

Further, it is preferable that the vehicle body is equipped with an inspection unit, and the width of the inspection unit in the left-right direction is set so that the inspection unit can pass between the upper flanges of both rail members.

Further, the inspection unit may be positioned between both rail members in a state where both wheels at the time of separation are placed on the lower flanges of the rail members on the same left and right sides.

Another rail wear inspection vehicle according to the present invention is
The upper and lower trolley travel rails extend parallel to each other,
The upper trolley traveling rail is composed of a pair of left and right upper rail members having a U-shaped cross-section facing each other,
Each upper rail member has a central web and upper and lower flanges, the lower trolley traveling rail is composed of a pair of left and right U-shaped cross-section lower rail members facing each other, and each lower rail member is , The central web and the upper and lower flanges, so that the upper trolley runs over the lower flange upper surfaces of both upper rail members and the lower flange upper surfaces of both lower rail members. In a trolley conveyor in which the lower trolley runs, the left and right wheels are supported by the vehicle body so that they can approach and separate in the left-right direction. It is designed so that both wheels can be placed on the lower flange of the upper rail member on the same side on the left and right while
The inspection unit is hung from the car body, and the inspection unit can pass between the upper and lower flanges of both upper rail members, and the width of the inspection unit in the left-right direction is set so that it can pass between the upper flanges of both lower rail members. The inspection unit is designed to be positioned between the lower rail members when both wheels are placed on the lower flange of the upper rail member on the same side on the left and right sides when separated. is there.

In another rail wear inspection vehicle according to the present invention, when the rail wear inspection vehicle is put into the rail, both wheels are placed between the upper flanges of the left and right upper rail members while the left and right wheels are brought close to each other. After that, both wheels are separated from each other and placed on the lower flanges of both upper rail members, and at the same time, the inspection unit is passed between the upper and lower flanges of both upper rail members, It suffices to pass between the upper flanges of the left and right lower rail members. Therefore, according to the other rail wear inspection vehicle of the present invention, the rail wear inspection vehicle can be put into the rail at any place without choosing a location, and moreover, while the vehicle body is traveling along the upper rail. The lower rail can be inspected.

Further, an oscillating body is interposed between the vehicle body and both wheels, and the oscillating body has a vertical oscillating axis line and an offset portion for the vertical oscillating axis line. If both wheels are mounted on both sides of the clip so as to be swingable about a vertical axis, both wheels can be easily and reliably approached and separated from each other.

Further, it is preferable that the inspection unit has a projector for projecting a light band on the surface to be inspected and a camera for receiving the projected light band.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

In the following description, the front and rear sides are referred to as the front side (arrow A in FIG. 1) and the opposite side to the rear side with reference to FIG. 1, and the left and right sides are the right and left sides when viewed from the rear side. The side is left and right.

Referring to FIG. 1, a power rail 11 extending forward, a free rail 12 extending above the power rail 11 in parallel with the power rail 11, and a drive chain 13 extending below the power rail 11 are shown. Has been done.

A front power trolley 14 and a rear power trolley 15 are mounted on the power rail 11. An upward pulling pawl 16 is attached to the front power trolley 14 so that it can be raised and lowered.
Although a free trolley (not shown) is mounted on the free rail 12, a rail wear inspection vehicle 17 is shown here instead of the free trolley. The drive chain 13 is connected to the front power trolley 14 and the rear power trolley 15, respectively.

As shown in detail in FIG. 9, the power rail 11 is composed of a pair of left and right lower rail members 21 having a U-shaped cross section and facing each other. Each lower rail member 21
Consists of a central web 21a and upper and lower flanges 21b, 21c.

Referring to FIG. 4, the free rail 12 has substantially the same structure as the power rail 11, and is composed of a pair of left and right upper rail members 22 having a U-shaped cross-section facing each other. Each upper rail member 22 includes a central web 22a and upper and lower flanges 22b and 22c.

Upper and lower flanges 21b and 21c of both lower rail members 21
The gap between the tips is W1, and the upper and lower flanges 22 of both upper rail members 22.
When the gap between the tips of b and 22c is W2, W1> W2.

The rail wear inspection vehicle 17 is mounted on the front inspection vehicle 31 and the rear inspection vehicle 32, the horizontal load plate 33 passed to both of these inspection vehicles 31, 32, and the load plate 33. It has a control panel 34. Although not shown, the control panel 34 includes a personal computer, a battery, an amplifier and the like. Both inspection vehicles 31, 32 and the control panel 34 are electrically connected.

The front inspection vehicle 31 includes a front vehicle body 41, a front oscillating body 42 and a rear oscillating body 43 which are respectively supported by front and rear portions of the front vehicle body 41, and a pair of left and right front oscillating bodies 42 and a rear oscillating body 43. Front wheels 44 and rear wheels 45 attached, and left and right front wheels
The horizontal front guide roller 46 and the rear guide roller 47 are respectively attached to the front oscillating body 42 and the rear oscillating body 43 so as to be respectively positioned above the front wheel 44 and the rear wheel 45. A dog 48 with which the tow claw 16 is engaged is attached to the bottom of the front vehicle body 41.

The rear inspection vehicle 32 has a rear vehicle body 51. The rear vehicle body 51 includes an upper vehicle body 51A and a lower vehicle body 51B, and a hanging suspension rod 51C connecting the upper vehicle body 51A and the lower vehicle body 51B. The upper vehicle body 51A has substantially the same structure as the front vehicle body 41. No dog is attached to the upper vehicle body 51A, but instead of this, the upper end portion of the hanging rod 51C is attached.

A front rocking body 52 and a rear rocking body 53 are respectively supported on the upper vehicle body 51A similarly to the front vehicle body 41.
Left and right front wheels 54 and rear wheels 55, front guide rollers 56, and rear guide rollers 57 are attached, respectively. The lower vehicle body 51B is equipped with an inspection unit 58.

As a representative of the front vehicle body 41 and the upper vehicle body 51A, FIG.
The upper vehicle body 51A and its related members, the detailed structure of which is shown in FIG. 5, will be described.

The upper vehicle body 51A has an elongated horizontal top plate extending in the front-rear direction and having a width slightly smaller than the outer diameters of the guide rollers 56 and 57.
61 and a prismatic body 62 provided in a hanging shape at the center of the lower surface of the top plate 61.

Vertically opposed plate-like brackets 63 are provided at the centers of the left and right edges of the top plate 61, and the rear end of the load plate 33 is connected to the brackets 63 via connecting members 64. The connecting member 64 includes an upward vertical pin 65 rotatably and slidably pierced at the center of the rear edge of the load plate 33, and a bracket 63.
And a pair of horizontal pins 66 that are rotatably and slidably passed through.

[0028] A front-facing front semicircular portion is provided at both front and rear ends of the top plate 61.
71 and the rear half circular portion 72 are provided respectively. A circular front mounting hole 73 is vertically penetrated concentrically with the center of the circle formed by the front half circular portion 71, and the rear half circular portion is formed.
A circular rear mounting hole 74 is formed in a vertically penetrating manner concentrically with the center of the circle formed by 72. Referring to FIG. 5, one front first pin hole 75a is formed on the side surface of the front semi-circular portion 71 so as to face straight forward, and the front first pin hole 75a is formed.
Two front second pin holes 75b are formed at an angle of about 70 degrees on both sides of the pin. Also on the side surface of the second half circular portion 72, one rear first portion is formed according to the side surface of the front half circular portion 71.
A pin hole 76a and two rear second pin holes 76b are opened.

A notch 81 is formed in the lower portion of the body 62.
A horizontal pin 82 in the front-rear direction is provided on both side walls of the notch 81, and an upper end portion of the suspension rod 51C is swingably attached to the horizontal pin 82. A horizontal front support arm 83 is provided at the center of the lower edge of the front side of the body 62 so as to project forward, and a horizontal rear support arm 84 is provided at the center of the lower edge of the rear side of the body 62 so as to project backward. .

The front oscillating body 52 is rotatably slidably passed through the front mounting hole 73, and the front vertical shaft portion 101 on which the front guide roller 56 is mounted in the middle of the height, and the front mounting hole 73 top opening edge. A front flange portion 102 provided at the upper end of the outer surface of the front vertical shaft portion 101 so as to be brought into contact with the front vertical shaft portion 101, and a blade-shaped front offset portion 103 provided at the lower end portion of the outer surface of the front vertical shaft portion 101. ing.

An inverted L-shaped front bracket 104 is provided on the front end portion of the outer surface of the front flange portion 102. A front lock member 105 is attached to the vertical portion of the front bracket 104. The front lock member 105 includes a front lock pin 105a that is engaged with the front pin holes 75a and 75b, a spring (not shown) that biases the front lock pin 105a in a direction that always projects the front lock pin 105a, and pulls the front lock pin 105a. It is provided with a front pick 105b to be withdrawn.

Both ends of the front offset portion 103 are located at equal distances across the axis of the front vertical shaft portion 101 and sandwiching a coaxial line, on which the left and right front wheels 54 respectively supporting the left and right front wheels 54 are supported. A pair of vertical plate-shaped front bearing blocks 106 are mounted so as to be swingable around a vertical axis. Double front bearing block 10
A front connecting rod 107 is provided at the rear end portion of the bottom surface of 6. The front connecting rod 107 is horizontally swingably supported at the front end of the front support arm 83 at the center of its length.

The rear oscillating body 53 is different from the front oscillating body 52 in the front-rear direction, but has substantially the same structure and has a rear mounting hole 74.
The rear vertical shaft 111, which is rotatably slidably passed through and has the rear guide roller 57 mounted in the middle of the height, and the rear vertical shaft 111 so as to be brought into contact with the opening edge of the upper surface of the rear mounting hole 74. The rear flange portion 112 provided on the upper end of the outer surface and the rear vertical shaft portion 1
11 Blade-shaped rear offset part provided at the lower end of the outer surface
It has 113 and.

An inverted L-shaped rear bracket 114 is provided at the rear end of the outer surface of the rear flange 112. A rear lock member 115 is attached to the vertical portion of the rear bracket 114. The rear locking member 115 is similar to the front locking member 105 in that the rear locking pin 115
115a and the rear knob 115b.

A pair of left and right vertical plate-shaped rear bearing blocks 116, which respectively support the left and right rear wheels 55, are attached to both ends of the rear offset portion 113 so as to be swingable around a vertical axis. A rear connecting rod 117 is provided on the rear end of the bottom surface of both rear bearing blocks 116. The rear connecting rod 117 is horizontally swingably supported by the front end of the rear support arm 84 at the center of its length.

In FIG. 6A, the front lock pin 105a is fitted into the front first lock hole 75a, and the rear lock pin 115 is shown.
The state a is fitted in the rear first lock hole 76a. In this state, the straight line connecting the left and right wheels 54, 55 is made orthogonal to the rail length direction, and the left and right wheels 54, 55 are held in a state of being separated by the maximum distance. In this separated posture, as shown in FIG. 4, the left and right wheels 54, 55 are
It can be placed on the lower flange 22c of both upper rail members 22. From this state, both lock pins 105a and 115a are pulled out from both lock holes 75a and 76a, and the front and rear oscillating bodies 52 and 53 are rotated clockwise. This time, both lock pins 105a and 115a are moved to both second lock holes 75b. , 76b. Then, as shown in FIG. 6 (b), the straight line connecting the left and right wheels 54, 55 intersects the rail length direction at an angle, and the left and right wheels 54, 55 are kept parallel to each other, They are held close to each other in the left-right direction and offset in the front-rear direction. In this approaching posture, the distance between the outer surfaces of the left and right wheels 54, 55 is smaller than the distance between the tips of the upper flanges 22b of both lower rail members 22, and the left and right wheels 54, 55 can pass between the tips of the same flange 22b. Is.

When the rear inspection vehicle 32 is put into the free rail 12, the left and right wheels 54 and 55 are made to approach each other, and passed between the front flanges 22b of the lower rail members 22 and then left and right. The wheels 54, 55 may be placed in the separated posture.

Although the rear inspection vehicle 32 has been described in detail above, the front inspection vehicle 31 can be placed in the free rail 12 in the same procedure as the rear inspection vehicle 32.

The lower vehicle body 51B and the inspection unit 58 are shown in detail in FIGS. The lower car body 51B has a top plate 61
An elongated horizontal bottom plate 12 that extends in the front-rear direction and has the same width as
1, a crank plate-shaped front bracket 122, a vertical rod-shaped middle bracket 123, and a vertical plate-shaped rear bracket 124, which are provided on the lower surface of the bottom plate 121 so as to hang down sequentially from the front to the back.

The horizontal blade-shaped aligning body 125 is sandwiched between the front bracket 122 and the middle bracket 123 from the bottom plate 121 to the support shaft 12.
Suspended by 6. Aligning rollers 127 are attached to both ends of the aligning body 125.

The support shaft 126 has a protruding end portion that rotatably penetrates through the bottom plate 121 and projects upward. A horizontal driven arm 131 is fixed to the projecting end. On the other hand, a horizontal operation arm 132 is horizontally swingably attached to the rear end of the upper surface of the bottom plate 121. A connecting rod 133 is passed to the tip ends of the driven arm 131 and the operating arm 132. A front end of a tension coil spring 134 is hooked near the front end of the connecting rod 133. The rear end of the spring 134 is the connecting rod 1
It is hooked to the upper surface of the bottom plate 121 near the rear end of 33.

The operating arm 132 is provided with a lock mechanism 135. The lock mechanism 135 includes a vertical lock cylinder 141 that is vertically fixed in the middle of the length of the upper surface of the operating arm 132, and a hook member 142 that is fixed to the upper surface of the bottom plate 121 so as to be located to the left of the lock cylinder 141. And the lock tube 141 to the hook member 14
And a tool 143 for releasably engaging with 2.

A pair of vertical elongated holes 151 are formed in the peripheral wall of the lock cylinder 141 so as to face each other so that they can be generally viewed from the left and right. A lock rod 152 is passed through the both long holes 151. A compression coil spring 153 is housed in the lock tube 141 so as to push up the lock rod 152. A downward engaging recess 154 is formed at the upper end of the hook member 142.

The tool 143 includes a straight shaft 161, a handle 162 provided at one end of the shaft 161, and an engagement cylinder 163 provided at the other end of the shaft 161 and having a size capable of being fitted on the lock cylinder 141. Consists of. A pair of U-shaped notches 164 are formed in the lower edge of the engagement cylinder 163 so as to face each other.

In FIG. 11 (a), the lock bar 152 has the hook member 14
2 is shown disengaged. Spring 134
The connecting rod 133 is biased rearward by the aligning body 125.
Is urged to swing clockwise. As a result, a part of both alignment rollers 127 is laterally projected from the bottom plate 121. In this state, as shown in FIG. 9, when the two aligning rollers 127 are positioned between the tips of the upper flanges 21b of the lower rail members 21, both aligning rollers 127 are positioned.
Pushes the tip of the flange 21b with the force of the spring 134. Due to this reaction force, the aligning body 125 urges the lower vehicle body 51B so that it is positioned at the center of the power rail 11 in the width direction.

From the state shown in FIG. 11 (a), the connecting rod 133 is advanced against the force of the spring 134 to swing both arms 131 and 132 counterclockwise, and the lock rod 152 hooks 142. 11B, the state shown in FIG. 11B is obtained. In this state, both alignment rollers 127 are retracted into the bottom plate 121. In this state, the upper car body 51A is free rail 1
At the same time when the lower body 51B is put into the power rail 11, it can be put into the power rail 11 together with the inspection unit 58.

After the lower vehicle body 51B is inserted into the power rail 11, the tool 143 is used to change the state shown in FIG. 11 (b) to the state shown in FIG. 11 (a). The engagement cylinder 163 of the tool 143 is fitted on the lock cylinder 141, and the notch 164 is fitted on the lock rod 152. The tool 143 may be pushed down so that the lock rod 152 is pushed down against the spring 153 to come out of the engaging recess 154 of the hook member 142, and then the tool 143 is rotated clockwise.

The inspection unit 58 includes a horizontal rear facing left projector 171L and a right projector 171R, which are mounted on the front bracket 122 in parallel with each other with a space left and right, and the middle bracket 12
Vertical front diagonal left right first mirror 181L and vertical front diagonal left right first mirror 181R that are mounted side by side at the front of 3 and vertical rear that is mounted side by side at the rear of the middle bracket 123 Diagonal left facing second mirror 182L and vertical rear diagonal right facing right second mirror 182R, and rear bracket 124
Horizontally front left first camera 191L and left second camera 192L, which are mounted parallel to each other on the left side of the
And a horizontal front facing right first camera 191R and a right second camera 192R, which are attached to the right portion of the rear bracket 124 in parallel with each other at intervals in the vertical direction.

From the left projector 171L and the right projector 171R,
When viewed from a plane, it forms a straight line, but when viewed from the side, a laser light beam that spreads at a predetermined angle α is projected. The first left mirror 181L is arranged so as to have an angle of 45 degrees with respect to the luminous flux of the left projector 171L when seen in a plan view. The light beam projected rearward from the left projector 171L is the left first mirror.
It is reflected by 181L and turned to the left, illuminates the inner surface of each of the web 21a and the upper and lower flanges 21b, 21c of the lower rail member 21 on the left side, and a transverse light band is imaged on the inner surface. . The right first mirror 181R is
The left-right direction is opposite to that of the left first mirror 181L, but the left first mirror 181L is arranged so as to have an angle of 45 degrees with respect to the light flux of the right projector 171R when seen from a plane. The light beam projected rearward from the right light projector 171R is reflected by the right first mirror 181R and changed its direction to the right, and the right lower rail member
The inner surfaces of the web 21a and the upper and lower flanges 21b and 21c of 21 are irradiated, and transverse light bands are imaged on the inner surfaces.

The light band on the lower rail member 21 on the left side is the second on the left side.
Left first and second cameras reflected by mirror 182L
It is received by 191L and 192L. Therefore, the incident angle from the left lower rail member 21 and the left first and second cameras 19 are
Left second mirror 182 so that the reflection angles for 1L and 192L are equal
L is located. The left first camera 191L is responsible for the upper half of the light band on the left lower rail member 21, and the left first camera 191L is responsible for the lower half of the same light band.
The image receiving angles β of the cameras 191L and 192L are set. Similarly to the light band on the left rail member 21, the light band on the right rail member 21 has its upper half received by the right first camera 191R and its lower half received by the right second camera 192R. .

As the power trolleys 14 and 15 travel on the power rail 11, the lower rail member 21 of the power rail 11 is moved.
Abrasion occurs on the inner surfaces of the web 21a and the upper and lower flanges 21b and 21c. By running the inspection vehicle 17 on the free rail 12, the wear of the power rail 11 can be prevented by the left first camera 191L.
The left second camera 192L and the right first camera 191R and the right second camera 192R receive images in real time. Same camera
The images received by the 191L, 192L, 191R, and 192R are input to a personal computer and subjected to various image processing. The left and right lower rail members 21 of the power rail 11 can be individually displayed in cross section, or can be combined and displayed in cross section.

FIG. 12 shows a modification of the rear inspection vehicle 201. The post-inspection vehicle 201 according to this modified example is not for measuring the wear of the power rail 11 but for the free rail 12
It is for measuring the wear of.

The rear inspection vehicle 201 includes a rear body 211 and a rear body 211.
Front oscillating body 52 and rear oscillating body 53, which are respectively supported on the front and rear parts of the vehicle, front and rear wheels 54 and rear wheels 55 attached to the front oscillating body 52 and the left and right oscillating body 53, respectively, and the left and right front wheels. The horizontal front guide roller 56 and the rear guide roller are attached to the front oscillating body 52 and the rear oscillating body 53 so as to be respectively positioned above the rear wheel 55 and the rear wheel 55.
57 and.

The rear vehicle body 211 lacks a structure corresponding to the lower vehicle body 51B and is configured as a single structure corresponding to the upper vehicle body 51A. That is, the rear vehicle body 211 has a top plate 221 which is slightly longer than the top plate 61, but lacks a configuration corresponding to the body 62. The individual configurations of the front oscillating body 52 and the rear oscillating body 53 are the same as those described above, but the intervals between them are widened. Instead of the body 62, three brackets corresponding to the front bracket 122, the middle bracket 123, and the rear bracket 124 of the lower vehicle body 51B are provided, and the inspection unit 58 is equipped with this. As described above, in FIG. 12, parts corresponding to those in the above configuration are designated by the same reference numerals and will be described instead.

Although the embodiments in which the present invention is applied to a floor conveyor have been described above, the present invention can also be applied to a ceiling conveyor. In that case, the power rail and the free rail are turned upside down.

[0056]

According to the present invention, the rail wear inspection vehicle can be inserted into the rail at any place without choosing a place.

[Brief description of drawings]

FIG. 1 is a side view of a rail wear inspection vehicle according to the present invention.

FIG. 2 is a perspective view of the vicinity of the upper vehicle body of the rear inspection vehicle of the same inspection vehicle.

FIG. 3 is a side view of the vicinity of the vehicle body of the same as above.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a horizontal sectional view taken along line VV of FIG.

FIG. 6 is an explanatory view of a wheel approaching / separating operation of the rear inspection vehicle.

FIG. 7 is a perspective view near a lower vehicle body of the rear inspection vehicle.

FIG. 8 is a side view of the vicinity of the lower vehicle body.

9 is a sectional view taken along line IX-IX in FIG.

10 is a horizontal sectional view taken along line XX of FIG.

FIG. 11 is an explanatory diagram of an alignment operation of the lower vehicle body.

FIG. 12 is a side view corresponding to FIG. 1 showing a modified example of the rear inspection vehicle.

[Explanation of symbols]

11 power rail 12 free rail 21 Lower rail member 22 Upper rail member 51 car body 52 Front swing body 53 Rear swing body 54 front wheels 55 rear wheel

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2F065 AA49 AA51 BB11 BB15 CC35                       FF04 HH05 HH12 HH14 JJ03                       JJ05 JJ26 LL12 MM07 PP02                       QQ31                 2F069 AA24 BB25 DD25 GG04 GG07                       GG12 GG65 HH30 JJ06 JJ25                       MM04 MM15 MM26 NN00 PP01                 3F025 CA24 CA34 CB09

Claims (6)

[Claims] 1. The trolley traveling rails 11 and 12 are composed of a pair of left and right rail members 21 and 22 having a U-shaped cross section and facing each other. The respective rail members 21 and 22 are provided with central webs 21a and 22a. In the trolley conveyor having upper and lower flanges 21b, 22b, 21c, 22c, the lower flanges 21c, 22c of both rail members 21, 22 are arranged so that the trolleys 14, 15 run across them. The left and right wheels 54 and 55 are supported by the vehicle body 51 so as to be able to approach and separate in the left and right direction, and both wheels 54 and 55 when approaching pass between the upper flanges 21b and 22b of both rail members 21 and 22. In addition, both wheels 54 and 55 at the time of separation are on the left and right on the same side rail member 2
A rail wear inspection vehicle that can be placed on the lower flanges 21c, 22c of 1, 22. 2. The vehicle body 51 is equipped with an inspection unit 58, and the inspection unit 58 is installed on the upper flange 2 of both rail members 21 and 22.
The rail wear inspection vehicle according to claim 1, wherein the width of the inspection unit 58 in the left-right direction is set so that the inspection unit 58 can pass between 1b and 22b. 3. The inspection unit 58 is arranged between the rail members 21, 22 in a state in which the wheels 54, 55 at the time of separation are placed on the lower flanges 21c, 22c of the rail members 21, 22 on the same left and right sides. The rail wear inspection vehicle according to claim 1 or 2, wherein the rail wear inspection vehicle is located at the position. 4. The upper and lower trolley traveling rails 12, 11 extend in parallel with each other, and the upper trolley traveling rail 12 has a pair of left and right upper rail members 22 having a U-shaped cross section facing each other.
Each of the upper rail members 22 has a central web 22a and upper and lower flanges 22b and 22c, and the lower trolley traveling rail 11 includes a pair of left and right U-shaped cross-section lower rails facing each other. Each of the lower rail members 21 includes a central web 21a and upper and lower flanges 21b and 21c, and the upper trolley runs across the upper surfaces of the lower flanges 22c of both upper rail members 22. In addition, the lower trolleys 14 and 15 straddle the upper surfaces of the lower flanges 21c of both lower rail members 21.
In a trolley conveyor configured to run, the left and right wheels 54, 55 are supported by the vehicle body 51A so that they can approach and separate in the left and right directions. The upper rail member 2 that can pass between the upper flanges 22b of the upper rail 22 and the wheels 54 and 55 when separated are on the same side on the left and right.
2 is adapted to be placed on the lower flange 22c, the inspection unit 58 is hung from the vehicle body 51A, and the inspection unit 58 is mounted on the upper and lower flanges 22b, 22 of the upper and lower rail members 22.
The width in the left-right direction of the inspection unit 58 is set so that it can pass between the upper flanges 21b of both the lower rail members 21 while passing between c, and both wheels 54 and 55 at the time of separation are on the same side. A rail wear inspection vehicle in which an inspection unit 58 is placed between the lower rail members 21 while being placed on the lower flange 22c of the upper rail member 22. 5. An oscillating body 52, 53 between the vehicle body 51 and both wheels 54, 55.
The rocking bodies 52 and 53 have a vertical rocking axis and offset portions 103 and 113 corresponding thereto, and the rocking bodies 52 and 53 are provided on both sides of the rocking axis of the offset portions 103 and 113. The rail wear inspection vehicle according to any one of claims 1 to 4, wherein both wheels 54, 55 are mounted so as to be swingable about a vertical axis. 6. The inspection unit 58 has projectors 171L, 171R for projecting a light band on the surface to be inspected and cameras 191L, 191R, 192R, 192L for receiving the projected light band.
The rail wear inspection vehicle according to any one of 5 above.