JP3616848B2 - Self-propelled cart current collector - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a current collector for a self-propelled carriage used for, for example, an assembly work of an automobile or a home appliance.
[0002]
[Prior art]
This type of self-propelled cart current collector includes a power supply rail and a current collecting trolley that is moved along the power supply rail. The power supply rail includes a downward upper rail tread and an upward lower rail tread. An upward upper guide groove and an upward lower guide groove extending along the upper and lower current traveling trolleys, the upper traveling wheel rolling on the upper rail tread and the lower traveling wheel rolling on the lower rail tread. An upper guide wheel fitted in the upper guide groove and a lower guide wheel fitted in the lower guide groove, and a trolley body supporting the upper traveling wheel, the lower traveling wheel, the upper guide wheel and the lower guide wheel, respectively. What is equipped with is known.
[0003]
[Problems to be solved by the invention]
In the above conventional current collector, for example, there is a case where a failure occurs in the current collector trolley, the current collector trolley is removed from the power supply rail for repair, and after the repair, the current collector trolley may be attached to the power supply rail. In this case, it is necessary to remove the guide wheel from the guide groove. A work for detaching the guide wheel is provided at an appropriate position of the power supply rail, and the current collecting trolley to be attached to and detached from that position must be moved, which is inconvenient.
[0004]
An object of the present invention is to provide a convenient current collecting device for a self-propelled carriage in which a current collecting trolley can be attached to and detached from an electric power supply rail at an arbitrary place.
[0005]
[Means for Solving the Problems]
A current collector for a self-propelled carriage according to the present invention comprises a power supply rail and a current collecting trolley moved along the power supply rail, and the power supply rail has a downward upper rail tread and an upward lower rail tread. In the current collector for the self-propelled carriage, the current collecting trolley includes an upper wheel having an upper flange 51 sandwiching both side portions of the upper rail tread, a lower wheel having a lower flange sandwiching both side portions of the lower rail tread, an upper wheel, A support member that supports the lower wheel at a pitch equal to or greater than the distance obtained by subtracting the rotation radius of the upper wheel and the rotation radius of the lower wheel from the distance corresponding to the distance between the upper rail tread and the lower rail tread; and the lower wheel And a trolley body that supports the support member in a swingable manner about the rotational axis of the upper wheel, and a position where the upper wheel contacts the upper rail tread and the lower wheel contacts the lower rail tread The upper wheel from above the rail tread surface, have been made as capable of moving on wheels between a position to be spaced more than a distance obtained by adding the height and the lower flange height of the upper flange, provided on the trolley main body shaft hole The lower wheel axle is penetrated , the upper wheel has front and rear upper wheels, the lower wheel has front and rear lower wheels, and the support member is front side It has a front support member corresponding to the upper wheel and the front lower wheel, and a rear support member corresponding to the rear upper wheel and the rear lower wheel .
[0006]
[Action]
In the current collector for the self-propelled carriage according to the present invention, the current collecting trolley includes an upper wheel having an upper flange sandwiching both side portions of the upper rail tread surface, a lower wheel having a lower flange sandwiching both side portions of the lower rail tread surface, and an upper wheel and the lower wheel, and a support member that supports above the rail tread and the distance over pitch obtained by subtracting the respective radius of rotation of the rotational radius and lower wheels of the upper wheel from a distance corresponding to the spacing between the lower rail tread, under And a trolley body that supports a support member in a swingable manner about the rotation axis of the wheel. A position where the upper wheel contacts the upper rail tread and the lower wheel contacts the lower rail tread, and the upper wheel from the top rail tread surface, because they are made as can move on wheels between a position to be spaced more than a distance obtained by adding the heights of the lower flange of the upper flange, during running of the collector trolley, On wheels to the rail tread surface, is off wheels underneath the rail tread surface is brought into contact respectively, separation at the time of detachment of the current collector trolley, from above the wheel on the rail tread surface, the height and the lower flange height of the upper flange plus the distance over Thus, the upper wheel and the lower wheel are removed from between the upper rail tread and the lower rail tread.
[0007]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0008]
In the following description, the front and rear refer to the side (indicated by an arrow A in FIG. 1) on which the carriage advances, and the opposite side refers to the rear, and the left and right refer to the left and right sides as viewed from the front (FIG. 3). Left and right).
[0009]
Referring to FIG. 1, a cart traveling rail 12 extending in the front-rear direction is laid on the floor 11, and guided by the vehicle traveling rail 13 so as to travel forward. Under the floor 11 on the right side of the carriage traveling rail 12, a power supply rail 14 extending in parallel with the carriage traveling rail 12 is laid, and the current collecting trolley 15 travels along this.
[0010]
The carriage 13 includes a rectangular plate-like carriage main body 21 that is long in the front-rear direction, a motor-driven drive trolley 22 that is provided at the center of the front edge of the carriage main body 21 and has a drive roller that rolls on the traveling rail 12, and the carriage main body. 21, a driven trolley 23 having a guide roller that is provided at the center of the rear edge and sandwiching the traveling rail 12 from both sides, and is provided at the four corners of the carriage body 21 and arranged to roll on the floor 11. The caster 24 is provided.
[0011]
A current collecting trolley inspection opening 25 is provided in a portion of the carriage main body 21 near the right edge. Moreover, although not shown in figure, the trolley | bogie main body 21 is equipped with the loading platform and the lifter for raising / lowering this.
[0012]
The power supply rail 14 has a U-shaped cross section in the left-hand opening, and has a lower protruding upper rail 31 and an upper protruding lower rail 32 at the opening edge, and a bus bar 33 stretched on the left side. Yes. The upper rail 31 has a downward upper rail tread 34, and the lower rail 32 has an upward lower rail tread 35 (see FIG. 3). The upper and lower rail treads 34 and 35 face each other at a predetermined interval B.
[0013]
The current collecting trolley 15 includes a front upper wheel 41 and a lower wheel 42, a rear upper wheel 41 and a lower wheel 42, a front support member 43 that supports the front upper wheel 41 and the lower wheel 42, and a rear The rear support member 43 supporting the upper wheel 41 and the lower wheel 42 on the side, the trolley main body 44 supporting the front and rear support members 43, and the front and rear support members 43 of the trolley main body 44 on both sides of the front and rear A front / rear collecting current collector 45 and a connecting rod 46 for connecting the trolley body 44 to the edge of the opening 25 of the carriage body 21 are provided.
[0014]
The upper wheel 41 and the lower wheel 42 are both of the same structure and have the same diameter d. The upper wheel 41 has a pair of left and right upper flanges 51 sandwiching both sides of the upper rail tread surface 34 of the upper rail 31, and the lower wheel 42 is a pair of left and right lower flanges 52 sandwiching both sides of the lower rail tread surface 35 of the lower rail 32. have. The height h of the upper flange 51 and the lower flange 52 is the same. The axle 53 of the upper wheel 41 is fixed to the support member 43 so as to protrude rightward. The axle 54 of the lower wheel 42 includes a large-diameter portion 55 that supports the lower wheel 42 and a small-diameter portion 57 that continues to the large-diameter portion 55 via a flange 56. The pitch P between the center of the axle of the upper wheel 41 and the center of the axle of the lower wheel 42 is determined by changing the rotation radius d / 2 of the upper wheel 41 and the rotation radius d / 2 of the lower wheel 42 from the distance B between the upper and lower rail treads 34 and 35, respectively. Equal to the reduced distance. That is, P = B− (d / 2 + d / 2).
[0015]
The front and rear support members 43 have the same structure in the form of a vertical rectangular plate, although they are not front and rear. The front and rear support members 43 are provided with guide holes 58 through which the axle large diameter portion 55 and the flange 56 of the lower wheel 42 are loosely penetrated. A bolt hole 59 is provided in front of the upper axle 53 of the front support member 43, and a bolt hole 59 is provided in the rear of the upper axle 53 of the rear support member 43.
[0016]
The trolley body 44 has a U-shaped vertical cross section and has a vertical side wall 61. Front and rear shaft holes 62 are provided near the lower edge of the side wall 61. A level difference C between the lower rail tread surface 35 and the center of the shaft hole 62 is equal to the rotation radius d / 2 of the lower wheel 42. The shaft hole 62 has an axle small diameter portion 57 of the lower wheel 42 inserted therethrough. The small axle portion 57 is protruded to the left from the shaft hole 62, and a retaining ring 63 is attached to the protruding portion. An arc-shaped elongated hole 64 extending on the circumference of the radius r centering on the center of the front and rear shaft holes 62 and communicating with the bolt hole 59 is provided in the middle to upper part of the height of the side wall 61. It has been.
[0017]
The bolt 71 is passed through the bolt hole 59 and the long hole 64, and a nut 72 is fitted on the bolt 71, and the support member 43 and the trolley body side wall 61 are fixedly sandwiched between the head of the bolt 71 and the nut 72. .
[0018]
In FIG. 2, when the support member 43 is positioned so that the upper end of the long hole 64 is brought into contact with the bolt 71 as indicated by the previous support member 43, the axle centers of the upper and lower wheels 41 and 42 are aligned. The upper wheel 41 is in contact with the upper rail tread surface 34 and the lower wheel 42 is in contact with the lower rail tread surface 35 in this state. This is a state in which a normal trolley is allowed to travel.
[0019]
From this state, as shown by the rear support member 43 in FIG. 2, the bolts and nuts 71 and 72 are loosened, the support member 43 is inclined, and the lower end of the long hole 64 is brought into contact with the bolt 71. The lower wheel 42 remains in contact with the lower rail tread 35, but the upper wheel 41 is separated from the upper rail tread 34. This separated distance D is equal to or greater than the distance obtained by adding the height h of the upper flange and the height of the lower flange h. In this state, when the trolley body 44 is slightly lifted to the position where the lower flange 52 is detached from the lower rail 32 and moved to the right, the trolley body 44 is removed from the upper and lower rails 31 and 32.
[0020]
【The invention's effect】
According to this invention, when the current collecting trolley is running, the upper wheel is brought into contact with the upper rail tread and the lower wheel is brought into contact with the lower rail tread. When the current collecting trolley is attached or detached, the upper wheel is moved from the upper rail tread to the upper flange. Since the upper wheel and the lower wheel are disengaged between the upper rail tread surface and the lower rail tread surface, the current collector trolley can be attached to the power supply rail at any location. Detachable.
[Brief description of the drawings]
FIG. 1 is a perspective view including a fractured section of a self-propelled carriage equipped with a current collector according to the present invention.
FIG. 2 is a side view of a main part of the current collector.
FIG. 3 is a vertical cross-sectional view of the main part.
[Explanation of symbols]
14 Feeding rail 15 Current collecting trolley 34 Upper rail tread 35 Lower rail tread 41 Upper wheel 42 Lower wheel 43 Support member 44 Trolley body 51 Upper flange 52 Lower flange

Claims (1)

A self-propelled cart collection including a power supply rail 14 and a current collecting trolley 15 that is moved along the power supply rail 14, and the power supply rail 14 has a downward upper rail tread 34 and an upward lower rail tread 35. In electrical equipment,
Current collector trolley 15
An upper wheel 41 having an upper flange 51 sandwiching both side portions of the upper rail tread 34 and a lower wheel 42 having a lower flange 52 sandwiching both side portions of the lower rail tread 35;
The upper wheel 41 and the lower wheel 42 are subtracted from the distance corresponding to the distance B between the upper rail tread surface 34 and the lower rail tread surface 35 by the rotation radius d / 2 of the upper wheel 41 and the rotation radius d / 2 of the lower wheel 42, respectively. A support member 43 supporting at a pitch P equal to or greater than the distance,
A trolley main body 44 that swingably supports a support member 43 around the rotation axis of the lower wheel 42, and
The position at which the upper wheel 41 is brought into contact with the upper rail tread 34 and the lower wheel 42 is brought into contact with the lower rail tread 35, and the height h of the upper flange 51 and the height h of the lower flange 52 from the upper rail tread 34. the have been made so capable of moving on wheels 41 with the distance position which is separated or D was added,
An axle 54 of the lower wheel 42 is passed through a shaft hole 62 provided in the trolley body 44 ,
The upper wheel 41 has a front and rear upper wheel 41 , the lower wheel 42 has a front and rear lower wheel 42 , and the support member 43 has a front upper wheel 41 and a front lower wheel 42. current collector of autonomous guided vehicle, characterized in correspondence has a side support member 43 after which, it the front support member 43 and the rear side on the wheels 41 and the rear side lower wheel 42 corresponding to.

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