JPH09263237A - Carriage control mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide automatic reciprocating and stopping movement for a carriage by energizing the carriage for running the carriage, interrupting energizing the carriage, and connecting a control panel for stopping the carriage to a motor and a proximity sensor. SOLUTION: A proximity sensor 44 for detecting the presence of a protrusion 43 provided in a case 11 is disposed at a trolley 12, and the proximity sensor 44 and a motor are removably-connected to a control panel through a cord 23. The control panel energizes a carriage 6 to run the carriage 6, and shuts down energizing of the carriage according to the detection of the protrusion 43 with the proximity sensor 44 to stop the carriage 6. As a result, the program of the control panel is set in advance, by which it is possible to provide automatic reciprocating and stopping movement for the carriage 6, and mount and remove the control mechanism of the carriage 6 easily.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention has a built-in motor,
The present invention relates to a mechanism for controlling the traveling of a trolley when it is used for cleaning filth or the like by arranging a trolley that is driven by electricity from the outside, for example, in a multiple breeding breeding apparatus that stores experimental animals and the like.

[0002]

2. Description of the Related Art As a multiple breeding apparatus in which a large number of cages for laboratory animals and the like are arranged, there is a conventional breeding apparatus shown in FIG. 5, for example. In the figure, reference numeral 1 is a mount, and this mount 1
In addition, breeding cages 2 for accommodating experimental animals and the like are respectively suspended, and are stacked on a plurality of floors (third floor in the case of the figure) in a state where they are horizontally connected in the longitudinal direction of the gantry 1. Further, reference numeral 3 is a tray which is disposed below the bottom slats of the two rows of breeding cages on each floor, and receives the dirt and the like that has fallen through the gaps between the slats. It is in communication.

On the other hand, a pair of front and rear traveling rails 5 are arranged on the tray 3 along the longitudinal direction thereof. The carriage 6 having a scraper for cleaning horizontally travels on the traveling rail 5, so that the scraper is accumulated on the drop chute 4 by the scraper and drops from the drop chute 4.

FIG. 6 shows a drive mechanism of such a dolly 6. Above the rail on the back side of the pair of traveling rails 5, a current collecting rail 7 having a conducting wire (not shown) therein is arranged in parallel with the traveling rail 5.
In addition, a trolley 8 which is electrically connected to a conducting wire via a conducting contact (not shown) is slidably fitted to a lower portion of the current collecting rail 7, and the conducting contact is provided by a carriage via a cord 8a. 6 is connected to a motor (not shown). Furthermore,
A pair of bars 9 extend upward from the rear surface of the carriage 6 so as to sandwich the trolley 8, and chains 9a connected to the trolley 8 with slack from the left and right are provided at the respective tips.

Then, the electricity supplied to the conducting wire in the collector rail 7 is applied to the motor in the truck 6 through the conductive contact of the trolley 8 and the cord 8a, so that the truck 6 reciprocates on the traveling rail 5. To run. The trolley 8 is pulled by the carriage 6 via the chain 9a as the carriage 6 moves,
Following the dolly 6, it reciprocates along the current collecting rail 7.

[0006]

By the way, in such a multiple breeding breeding apparatus, collision between the carriage 6 and the end portion of the gantry 1 (the portion indicated by the symbol C in FIG. 5) is prevented, and the carriage 6 ends. The dolly 6 should be stopped so that it will stop in front of the section C or run in the opposite direction after stopping.
Alternatively, a contact type limit switch (not shown) is provided on one of the gantry 1, and when the trolley 6 reaches a predetermined position in front of the end C, the limit switch is operated to move the trolley 6 to the end C. I had stopped before.

However, when the limit switch is installed, it is necessary to wire the limit switch again after the completion of the construction of the multiple breeding apparatus according to the scale of the apparatus, and this wiring is housed in the gantry 1. Therefore, there is a problem that the wiring is troublesome and it is difficult to remove the wiring once housed. In addition, since an opening is provided in the gantry 1 for wiring, harmful insects and the like can be passed through this opening.
There was also a fear of breaking into it.

The present invention has been made in view of the above circumstances, and is, for example, a mechanism for controlling the travel of the carriage 6 in a multiple breeding apparatus or the like, and particularly, without impairing the hermeticity of the gantry 1. Moreover, it aims at providing the trolley | bogie control mechanism which can be installed and removed easily.

[0009]

SUMMARY OF THE INVENTION The present invention is a mechanism for controlling the travel of a trolley which has a built-in motor and is movably arranged along the travel rail, the guide being parallel to the travel rail. A trolley supported by rails and driven by the carriage along the guide rails, a cord housed in a case covering the guide rails, connected to the motor via the trolleys, and provided on the trolleys. A sensor for detecting the presence of a detected portion provided in the case, and the motor and the sensor connected via the cord to energize the truck to drive the truck while the sensor detects It is characterized in that it has a control panel for interrupting the energization of the dolly and stopping the dolly according to the detection of the detected part.

In this case, the cord is inverted by the rotary driven in the case along the guide rail and extends toward one end of the guide rail, and one end of the pair of guide wires is engaged with the trolley. And one guide wire is inverted by the rotary and extends to one end side of the guide rail, and the other guide wire extends in the opposite direction to the one guide wire and is provided at both ends of the guide rail. The guide member and the rotary member are inverted to extend to the other end side of the guide rail, and tension is applied to these guide wires by a tension applying member attached to the other end of these guide wires. Is desirable.

The rotary includes a main wheel on which the cord is suspended, a first sub-wheel and a second sub-wheel which are coaxial with the main wheel and on which the pair of guide wires are respectively suspended. It is desirable to have it.

Further, for example, a protrusion provided at a predetermined position in the case is used for the detected portion, and a proximity sensor for detecting the presence of the protrusion is used for the sensor.

On the other hand, the trolley is arranged, for example, on a tray located below each breeding cage of a multiple breeding breeding apparatus in which animal breeding cages are arranged in a row. It is used to clean the dirt that has fallen on top. In this case, it is desirable that the case and the control panel are detachably supported by the multiple breeding apparatus.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Specific embodiments of the present invention will be described below in more detail with reference to the drawings. It should be noted that the same reference numerals are used for the portions having the same configurations as those of the above-mentioned conventional technique, and the description thereof will be omitted.

FIGS. 1 to 3 show a carriage control mechanism used in a multiple breeding apparatus as shown in FIG. 5, for example. Reference numeral 11 in the figure indicates the rear side of the breeding cage 2.
A case attached to the gantry 1 in parallel with the traveling rail 5 in a detachable manner, and in the space below the case 11 formed between the lower surface of each breeding cage 2 and the tray 3, a trolley 6 having a scraper for cleaning is installed. (The case 11 and the carriage 6 are partially illustrated in FIG. 1).

Reference numeral 12 is a trolley.
Is housed in a case, and a pair of front and rear wheels 13 are supported on the left and right sides of the case. In addition, side surfaces 11a of the case 11 facing both side surfaces of the trolley 12,
A pair of guide rails 14 are fitted to the wheel 11b so as to sandwich the upper and lower sides of the wheel 13 from the front and rear and guide the traveling thereof.
Are respectively provided (only one is shown in FIG. 1).

Reference numeral 11c is an opening formed in the lower side of the case 11 along the longitudinal direction thereof, and the trolley 1 is provided.
A connecting plate 12a extending from the opening 11c to the outside is formed in the lower part of 2. In addition, the connecting plate 12a,
Chains 9a extending with slack from the bars 9, 9 of the dolly 6,
9a are connected from the left and right, and as a result, also in the present invention, the trolley 12 is adapted to follow the traveling of the carriage 6.

Reference numeral 15 is a rotary slidably supported by the guide rails 14. In the rotary 15, a main wheel 16 on which a cord, which will be described later, is suspended and which guides the cord.
Also, a first sub wheel 17 and a second sub wheel 18 on which a pair of guide cords, which will be described later, are respectively suspended, are rotatably supported by the same shaft 19. The wheels 16, 17, 18 are sandwiched from the front and the back by bearing plates 21 that support a pair of front and rear bearings 20 slidably fitted on the shaft 19 and the guide rails 14, respectively.

Reference numeral 23 is a cord for energizing the motor in the truck 6, and one end of the cord 23 is fixed to the trolley 12 and then electrically connected to the motor in the truck 6 via the connecting plate 12a. It is connected to the. On the other hand, the other end of the cord 23 extends to the rotary 15 side, is wound around the main wheel 16 for about half a round, and then extends in the opposite direction, passes through the lower portion of the trolley 12 (between the connecting plate 12a), and the case 11 After being fixed to the end surface of the case (not shown), it extends outward from the case 11. Further, the other end of the cord 23 is detachably connected to a control panel (not shown) that controls traveling of the carriage 6 via a connector 42 that can be closed by a cap 41.

Reference numeral 43 is a protrusion (detected portion) provided so as to protrude inward at the end of the side surfaces 11a and 11b of the case 11 facing both side surfaces of the trolley 12 (FIG. 1).
So, only one is shown). Also, trolley 12
Proximity sensors 44 that detect the presence of the protrusions 43 when the trolley 12 has passed the sides of the protrusions 43 are provided above the protrusions 43 of the side surfaces 11a and 11b.

Further, when the proximity sensor 44 does not detect the presence of the protrusion 43, the protrusion 43 exists on the trolley 12 behind the proximity sensor 44 when viewed from the protrusion 43 side. Limit switches 45 for backup, which detect the In the case of FIG. 1, since the projections 43 are formed on the right end portion of the side surface 11a and the left end portion of the side surface 11b (not shown), the left side and the side surface 11b of the proximity sensor 44 facing the side surface 11a side. Limit switches 45 are provided on the right side of the proximity sensors 44 facing the respective sides.

Reference numerals 46 and 47 respectively indicate the proximity sensor 4
4 and the limit switch 45, the cords 46 and 47 are both introduced into the cord 23. As a result, the proximity sensor 44 and the limit switch 45 are detachably connected to the control panel via the cords 46, 47, 23 and the connector 42.

Reference numeral 24 is a first guide code (guide line)
Then, this first guide cord 24 is attached to the trolley 1 at one end.
2 and the other end extends to the side opposite to the rotary 15 and the side surface 1 is formed at the end of the case 11 on the trolley 12 side.
First roller (guide member) 25 supported by 1a and 11b
The second roller (guide member) 26 which is inverted and extended to the rotary 15 side through the lower part of the trolley 12 and passes through the lower part of the trolley 12 and is supported by the side surfaces 11a and 11b at the end of the case 11 on the rotary 15 side. Via the first auxiliary wheel 17 of the rotary 15 via the
It hangs outward from the case 11 via a round bar 27 disposed between the side surfaces 11a and 11b at the end on the fifth side. A weight (tensioning member) 28 is attached to the other end of the first guide cord 24, and the weight of the weight 28 causes
The entire first guide cord 24 is held in tension.

On the other hand, reference numeral 30 is a second guide cord (guide wire). One end of this second guide cord 30 is fixed to the trolley 12 and the other end thereof is the rotary 1
After extending to the 5 side and being wound around the second auxiliary wheel 18 for about half a turn, the round bar 31 disposed between the side surfaces 11a and 11b is extended to the trolley 12 side at the end of the case 11 on the trolley 12 side. It hangs outward from the case 11 via the. In addition, a weight (tensioning member) 32 is also attached to the other end of the second guide cord 30.
Is attached, and the weight of the weight 32 holds the entire second guide cord 30 in a tensioned state.

As a result, the trolley 12 is shown in FIG.
As shown in (b), the first and second guide cords 24,
It is stationary in a balanced state by equal tension by weights 28 and 32 attached to 30 respectively. The reference numerals 33 and 34 denote the round bars 27 and 31 and the weight 28,
It is a one-way clutch that is attached to the first and second guide cords 24 and 30 between 32 and 32 and allows only the respective cords 24 and 30 to move in the hanging direction.

Next, the operation of the trolley control mechanism having the above structure will be described by taking the case of controlling the traveling of the trolley 6 for cleaning filth of the multiple breeding apparatus as an example.

When cleaning the dirt, first, the motor in the carriage 6 is energized from the control panel via the cord 23. In this case, for example, the position farthest from the fall chute 4 (see FIG.
When the middle left end position) is the initial position of the trolley 12, the cart 6 travels on the travel rail 5 in the right direction in FIG. In addition, the trolley 12 has one chain 9
It slides in the right direction in the figure, that is, in the direction of the drop chute 4 from a stationary state in which it is pulled by a and balanced by the tensions of the first and second guide cords 24 and 30 that act in opposite directions (see FIG. 4 (b)). .

Then, since the second guide cord 30 is pulled by the trolley 12, the second auxiliary wheel 18 on which the second guide cord 30 is suspended, that is, the rotary 15, has a half distance of the trolley 12 in the same direction as the trolley 12. Just move. In this case, the cord 23 is also pulled in the same direction, but since the rotary 15 is driven to travel, the cord 23
In addition, no excessive tension that hinders the movement of the trolley 12 is generated.

Further, although the first guide cord 24 can be bent by the movement of the trolley 12 toward the first roller 25, the first auxiliary wheel 17 moves integrally with the other wheels of the rotary 15, so that Before the bending occurs, the bending is absorbed between the second roller 26 and the first auxiliary wheel 17, and the tension is maintained.
If the bending which cannot be completely absorbed by the movement of the rotary 15 occurs, it is absorbed by the one-way clutch 33 and the weight 28. As a result, the powered cart 6 smoothly moves to the drop chute 4 while accumulating dirt on the tray 3 with a scraper (not shown), and causes the accumulated dirt to drop from the drop chute 4.

When the carriage 6 reaches the end position in the moving direction (the right end in FIG. 4 (b)), the trolley 12 is located on the side of the projection 43 provided on the end of the side surface 11a of the case 11 on the end side in the moving direction. And the proximity sensor 44 detects the presence of the protrusion 43. The detection signal from the proximity sensor 44 is transmitted to the control panel via the cords 46 and 23, and as a result, the power supply from the control panel to the motor is cut off and the carriage 6 stops.
Also, as the carriage 6 stops, the trolley 12 moves to the other chain 9
It is pulled by a and forced to stop against inertia.

Then, the motor is energized from the control panel via the cord 23 so as to rotate in the reverse direction. As a result, the carriage 6 travels in the opposite direction and is pulled by the other chain 9a.
Will follow this. In this case, the first guide cord 24 is pulled as the trolley 12 moves to the rotary 15 side, and as a result, the first auxiliary wheel 17 or the rotary 15 also moves in the same direction by a distance of half the trolley 12. The bending of the cord 23 due to the movement of the trolley 12 is absorbed by the movement of the rotary 15 in the same direction. At the same time, the tension of the second guide cord 30 also increases the tension of the second auxiliary wheel 18.
Is maintained by the movement (see FIG. 4 (a)).

When the carriage 6 reaches the initial position (the left end in FIG. 4A), the trolley 12 is provided with a protrusion 43 provided on the end of the side surface 11b of the case 11 on the side of the initial position.
Then, the proximity sensor 44 detects the presence of the protrusion 43. The detection signal from the proximity sensor 44 is the code 46,
It is transmitted to the control panel via 23, the power supply from the control panel to the motor is cut off, and the carriage 6 is stopped. As a result, the trolley 12 is balanced and stationary.

As described above, in the carriage control mechanism of the present invention, the program of the control panel is set in advance so that the motor stops or reverses from the stop in response to the signal from the proximity sensor 43. It is possible to automatically run back and forth and stop.

Moreover, including the proximity sensor 43,
Since all the main components except the control panel are attached to the case 11, the case 11 and the control panel are used when controlling the traveling of the cart 6 in the multiple breeding apparatus by the cart control mechanism of the present invention. The trolley 6 can be automatically controlled only by attaching it to the multiple breeding apparatus and connecting the trolley 6 and the trolley 12 and the case 11 and the control panel with the cord 23, respectively.

Therefore, according to the carriage control mechanism of the present invention,
After completing the construction of the multiple breeding equipment, wiring the limit switch for stopping the truck again according to the scale of the equipment,
Moreover, it is not necessary to store this wiring in the gantry 1 again.
Moreover, since it is not necessary to provide an opening for wiring in the gantry 1,
There is no possibility that harmful insects or the like will enter the gantry 1 through the opening. That is, according to the trolley control mechanism of the present invention, the trolley control mechanism can be easily installed and removed, and the gantry 1
It does not impair the airtightness.

Further, a cord 2 is provided for connection between the carriage 6 and the control panel.
Since the wired system of 3, 46, 47 is used, the traveling of the dolly 6 can be reliably controlled without any contact failure due to rust or corrosion at the electrical connection portion during disinfection or cleaning. In particular, the cord 23 has a connector 42 that can be closed by a cap 41.
Since it is detachably connected to the control panel via the connector, the control panel must be removed and the connector 4
By closing 2 with the cap 41, it is possible to prevent the failure of the control panel and the occurrence of rust or corrosion in the connector 42.

Moreover, since the trolley 12 and the rotary 15 interlocked with the trolley 12 do not change the load applied to the motor due to bending or pulling of the cord 23 to generate excessive tension, the trolley 6 is smoothly moved. Movement is not hindered. Moreover, since the load is small, the driving force of the motor can be relatively small.

In the above example, the case where the carriage control mechanism of the present invention controls the traveling of the carriage 6 for cleaning the waste of the multiple breeding apparatus is explained, but the use of the mechanism is limited to this. However, it is also possible to apply it to, for example, feeding an experimental animal or the like. In this case, the feeding case located on the lower front of the breeding cage 2 may be continuously or intermittently fed from the feeding case held on the carriage 6 by another control means according to the traveling of the carriage 6. You can do this. Further, it is needless to say that the carriage control mechanism of the present invention is not limited to the multiple breeding apparatus, but can be appropriately applied to other applications, that is, other apparatuses for running a wired carriage having an internal drive source.

In the above example, the trolley 12 is provided with the backup limit switch 45 in addition to the proximity sensor 44. However, if the trolley 12 merely functions as a sensor, the proximity sensor 44 and It is not necessary to provide both of the limit switches 45, but at least one of them may be provided.

[0040]

As described above, in the truck control mechanism of the present invention, by setting the program of the control panel in advance so that the motor stops or reverses from the stop in response to the signal from the sensor, It is possible to automatically carry out a round trip and stop.

Moreover, since all the main components except the control panel including the sensor are attached to the case, for example, when controlling the traveling of the carriage in the multiple breeding apparatus, the case and the control panel are The trolley can be automatically controlled by simply attaching it to the multiple breeding device and connecting the trolley and the control panel with a cord. That is, by applying the trolley control mechanism of the present invention to the multiple breeding device, it becomes possible to easily install and remove the trolley control mechanism for the multiple breeding device, and the sealing property of the gantry is not impaired. .

[Brief description of drawings]

FIG. 1 is a configuration diagram of a main part of a carriage control mechanism according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of the carriage control mechanism of FIG.

3 is a cross-sectional view of the bogie control mechanism of FIG. 1 taken along the line BB.

4A is a configuration diagram showing a relationship between a trolley, a rotary, a first guide cord and a power cord, and FIG. 4B is a configuration diagram showing a relation between a trolley, a rotary, a second guide cord and a power cord. is there.

FIG. 5 is a front view of a main part of the multiple breeding device.

FIG. 6 is a partial perspective view of a conventional truck drive mechanism.

[Explanation of symbols]

 3 Tray 5 Traveling rail 6 Truck 11 Case 11a, 11b Side of case 12 Trolley 14 Guide rail 15 Rotary 16 Main wheel 17 First auxiliary wheel 18 Second auxiliary wheel 23, 46, 47 Code 24 First guide code (guide line) 25 First Roller (Guide Member) 26 Second Roller (Guide Member) 28, 32 Weight (Tensioning Member) 30 Second Guide Cord (Guide Line) 43 Protrusion (Detected Part) 44 Proximity Sensor (Sensor)

Claims (6)

[Claims] 1. A mechanism for controlling traveling of a trolley, which has a built-in motor and is movably arranged along a traveling rail, and is supported by a guide rail parallel to the traveling rail. A trolley that follows the truck along the rail,
A cord that is housed in a case that covers the guide rail and that is connected to the motor through the trolley, and a sensor that is provided in the trolley and that detects the presence of a detected portion provided in the case, Connected to the motor and the sensor via the cord, energize the dolly to drive the dolly, while interrupting energization to the dolly in response to detection of the detected portion by the sensor, the dolly And a control panel for stopping the vehicle. 2. The cord is inverted by a rotary driven in the case along the guide rail to extend toward one end side of the guide rail, and one ends of a pair of guide wires are locked to the trolley, respectively. One guide wire is inverted by the rotary and extends to one end side of the guide rail, and the other guide wire extends in a direction opposite to the one guide wire and is provided at both ends of the guide rail. The guide member and the rotary respectively reverse and extend to the other end side of the guide rail, and tension is applied to these guide wires by a tension applying member attached to the other end of these guide wires. The trolley control mechanism according to claim 1, wherein: 3. The main wheel on which the cord is suspended, the first sub-wheel and the second sub-wheel on which the pair of guide wires are respectively suspended, and which are coaxial with the main wheel. The cart control mechanism according to claim 1 or 2, further comprising: 4. The detection part is a protrusion provided at a predetermined position in the case, and the sensor is a proximity sensor for detecting the presence of the protrusion. 3. The bogie control mechanism according to any one of 3 above. 5. The trolley is disposed on a tray located below each breeding cage of a multiple breeding breeding apparatus in which breeding cages for animals are arranged, and falls onto the tray according to the traveling of the trolley. The trolley control mechanism according to any one of claims 1 to 4, wherein the filth is cleaned. 6. The trolley control mechanism according to claim 5, wherein the case and the control panel are detachably supported by the multiple breeding apparatus.