JPS592508B2 - Jidoudokohoshiyukikai - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-propelled automatic floor maintenance machine for bowling lanes.

Various self-propelled automatic floor maintenance machines for bowling lanes are known, for example of the type according to U.S. Pat.
It performs many different functions in succession, much in the same way as a person would perform with their hands.

Such machines can perform one function instead of another, and can perform two or more functions simultaneously.

In polling yards with a large number of lanes, these machines are effective in saving time and labor.

However, machines of the type according to the previously mentioned patent specifications are significantly more expensive and in some cases it is necessary to do without owning one or more of the expensive units, in which case the Personnel must perform the work manually or with less (or at least no fully automatic or semi-automatic units).

Self-propelled automatic floor maintenance machines, such as those mentioned above, have various features that make them expensive, and if these features could be removed or at least simplified, these features could be improved. The cost of manufacturing maintenance machines is reduced, and
The price can be reduced to a value that even small polling stations can use.

Part of what makes these machines so complex and expensive is their configuration, which allows the operator to choose between fully automatic, semi-automatic, or manual operation for all or part of the process. be.

Another complicating factor is the presence of multiple retractable rollers, each of which is withdrawn only when performing a related task and is housed within a housing for unrelated tasks. It is in.

In some machines, especially those with multiple functions, it is not possible to correct inappropriate programs during automatic operation.

The main disadvantage is the large number of switches required to start and end various fully automatic, semi-automatic and manual operations.
It has a complex electrical control system with switch actuation members, solenoids, relays and sensors.

The gist of the present invention, which eliminates the above-mentioned drawbacks, is to provide an automatic floor maintenance machine including: a drive mechanism for driving the automatic floor maintenance machine along a predetermined path; a roller for scrubbing the floor during movement of the buff roller, a liquid supply device, a first control member selectively actuated to supply liquid to the buff roller, and a second control member configured to control the buff roller at a set point. An adjustable first distance setting mechanism is provided on the first control member for moving the automatic floor maintenance machine along the path a related distance and then reversing the automatic floor maintenance machine to a starting position. and the second control member has a second adjustable distance setting mechanism that can always set a shorter distance than the first distance setting mechanism, the second distance setting mechanism comprising: The liquid supply device is configured to act on the liquid supply device to supply the liquid to the buff roller by a moving distance of the automatic floor maintenance machine related to the set distance of the first and second distance setting mechanisms.

Next, embodiments of the present invention will be specifically described with reference to the drawings.

1 to 4 show a maintenance machine 10 for a bowling loon according to one embodiment of the invention, which in FIG. 1 is arranged astride a wooden lane 12. In FIG.

Reference numeral 14 indicates the edges on both sides of the lane 12, and reference numeral 16 indicates the foul line at the front end of the lane 120.

A plurality of devices having various functions, which will be described later, are all housed in a housing generally designated 18 made of metal plate, which housing 18 has right and left side panels 20 and 22 and a front section. It has a panel 24, a rear panel 26, a bottom surface 28, and a hinged two-part top surface 30.

A rear door 32 in the top surface 30 covers a main drive mechanism, generally designated 34, and a rear compartment 36, which is separated from the main drive mechanism 34 by a laterally extending partition wall 38. Both a puff polishing device 40 and an oil supply device 42 are housed within the rear compartment 36.

A partition wall 44 extends laterally and separates a central compartment 46 accommodating the main drive mechanism 34 and a front compartment 48 accommodating the dust removal mechanism, indicated generally at 50. Separate.

The front compartment 48 is covered by a front door 52 in the top surface 30 and is attached to the rear door 32 by a conventional flat hinge 54.

The rear partition wall 38 has an upwardly and forwardly sloping extension 56 constituting a control panel, on which are mounted various switches, lamps, fuse retainers, and the like shown in FIG. A distance scale mechanism 58 as shown in FIG.

A substantially central portion of the rear door 32 has a stepped portion 6 that is inclined in substantially the same direction as the extension portion 56 and overlaps the control panel.
0, and this step 60 has openings 6 for receiving various knobs, valves, and the like.
2 is formed.

All of the above portions are incorporated herein by reference in U.S. Pat.
This is according to the format described in the No. 037 specification.

Similarly, the main 1 drive mechanism 34 is essentially of the type described in US Pat. No. 3,604,037.

A primary drive shaft 64 extends laterally within the central compartment 46 and is supported by two bearings 66 secured to the side panels 20 and 22, respectively.

Similarly, a plurality of bearings 68 support the main drive shaft 640 at a plurality of locations between the ends of the main drive shaft 640.

A low speed gear motor 70 is provided, the output shaft 72 of which is operatively connected to the main drive shaft 64 via a first transmission mechanism 74 having a timing belt and a pulley.

The main drive shaft 64 is located near both ends of the main drive shaft 64.
A main drive roller 76 is mounted which cooperates with the nozzle 4 and which engages the lane surface via an open lower 8 suitably formed in the bottom surface 28 of the nozzle 18.

These parts are shown in detail in FIGS. 11 and 12.

According to FIGS. 2 and 4, the main drive shaft 64 is used as a power source for rotating an intermediate shaft 80 located in the rear compartment 36, and a transmission comprising a belt and a pulley. A mechanism 82 operatively connects the main drive shaft 64 and this shaft 80.

The shaft 80 is supported in a pair of brackets 84 fixed to the rear partition wall 38, and a pair of brackets 84 are mounted on the outside of the bracket 84 at the end of the bracket 84 on which the shaft 80 is supported. Arms 88 are supported parallel to this bracket 84 and pivotable about a shaft 80, and a refueling shaft 86 is supported at the other end of these arms 88.

Therefore, both the intermediate shaft 80 and the oil supply shaft 86 are
It is supported on a pair of arms 88 for relative rotation.

On the other hand, the oil transmission roller 90 of the oil supply device 42 is fixedly mounted on the oil supply shaft 86 so as to be rotatable therewith.

Yet another transmission mechanism 9 having a belt and a gourd
2 operatively connects the shaft 80 and the oil supply shaft 86.

A main puff drum 92' is rotatably arranged below the oil transmission roller 90 in the rear compartment 36, and end shafts 94 protrude from both ends of the main puff drum 92'. It is housed in a pair of bearings 96 fixed to the side panels 20.degree. 22.

The main puff drum 92' is covered by a tubular puff member 98 (shown in FIG. 4).
2', the puff member 98, and the end shaft 94 constitute the puff polishing device 40.

The puff member 98 itself is of a known type.

Puff member 98 is exposed toward lane 12 through the lower opening of rear compartment 36, as shown in FIGS. 3 and 4.

Before showing the puff polishing device 40 and its control mechanism in detail, the oil supply device 42 will be described in detail with reference to FIGS. 2, 3, and 4.

An oil sump 102 is mounted to the interior surface of the rear panel 26 for pivotal movement about a lateral axis defined by an end shaft 100 located proximate the bottom of the rear compartment 36.

An upwardly opening elongated slot 104 is formed at the front of the oil sump 102 adjacent the upper edge.

One end of the felt cylinder 106 is the oil reservoir 10.
2 to the bottom of the oil sump 102, and the other end of this sump 106 extends through the slot 104 to the back of the oil transfer roller 90,
06 supplies oil via this oil transmission roller 90 to a puff member 98 that rotates while being in contact with the oil transmission roller 90.

Shine 106 draws up oil in a known manner by capillary action and supplies this oil to oil transfer roller 290, which then forms a substantially uniform oil film on oil transfer roller 90 by wiping action.

A compression spring 112 is mounted on the inner surface of the rear panel 26 and a substantially vertical bracket 11 attached to the top of the oil sump 102.
0 and the bracket 110
is pushed forward, and for this reason, Shin 10
6 is actively engaged with the oil transmission roller 90.

Furthermore, the spring action of this compression spring 112 is
Puff polishing device 40 to oil transmission roller 90 via 02
The initial spring force directed toward is applied.

The weight of the oil transfer roller 90, which is supported by a pair of pivotable arms 88, is generally sufficient to maintain intimate mutually rotatable contact between the oil transfer roller 90 and the main puff drum 92'. The spring force of the compression spring 112 also serves as a positive initial spring force effect to compensate for the gravitational effect of the oil transfer roller 90.

Furthermore, this compression spring 112 is connected to a solenoid 114 (second
When the solenoid 1 is not activated (shown in FIG.
It also helps push 14 back into the running position.

The push rod 116 of this solenoid 114 is connected to the bracket 1.
It engages the front part of 10.

The main function of the solenoid 114, described with reference to FIGS. 2 and 4, is to pivot the oil sump 102 rearward to a position as shown by the dash-dotted line.

When the oil sump 102 is pivoted rearward in this manner, the shaft 106 moves rearward and the oil transmission roller 90 is also disengaged, and as is clear, in this case, there is no longer any oil on the oil transmission roller 90. Not supplied 0 As already apparent, the main 1 drive shaft 64 and the intermediate shaft 80 as well as the oil transfer roller 90 are all rotated at a relatively slow speed by the low speed gear motor 70; This is not the case for the puff polishing device 40, which must be rotated at high speeds.

This is because this puff polishing device 40 is
This is because it is driven by a separate drive motor 118 which is mounted on the bottom wall of the central compartment 46 as shown.

The drive motor 118 and the puff polishing device 40 are simple.
It is operatively connected by a transmission mechanism 120 comprising a V-belt and a pulley.

A slot (not shown) is provided to allow this V-belt to be installed between the central compartment 46 and the rear compartment 36.
is formed on the partition wall 38.

Next, the front compartment 48 is shown in FIGS. 2, 3 and 4.
The dust removal mechanism 50 housed in will be briefly explained.

A supply roller 122 is rotatably arranged above the front compartment 48 and close to the front of the partition wall 44 .

A pair of inverted brackets 124 are provided on opposite sides within the front compartment 48 and support the feed rollers 122.

As shown in FIG. 4, a rubber-coated dust removal roller 126 is supported between the lower ends of each downwardly extending leg of the pair of brackets 124 at the bottom of the front compartment 48. ing.

Similarly, a take-up roller 128 is connected to a pair of brackets 12
4, in front of the supply roller 122 and above the dust removal roller 126, and is rotatably supported on the bracket 124.

A cleaning cloth 130 is wound around the supply roller 122, and the cloth 130 extends downward from the supply roller 122, passes below the cleaning roller 126, and then extends upward to cover the bracket l-124. 7 in front, Uzing 1
It extends in front of the idler roller 132, which is supported between the side panels 20.22 of 8, to the take-up roller 128.

A tension spring 134 connects the bracket 124 and the side panel 20.
．． 22, and this tension spring 134 pushes down the dust removal roller 126 so that the dust removal roller 126
An initial spring force is applied such that the surface of the lane 12 is brought into contact with the surface of the lane 12.

Because the supply roller 122, dust removal roller 126, and take-up roller 128 are substantially elastically attached to the bracket 124, these members cooperate with the idler roller 132 to maintain a substantially constant tension on the dust removal cloth 130. The dust removal mechanism 50 as a whole can overcome obstacles while maintaining the dust removal mechanism 50.

As is apparent from the drawings, a motor 136 is mounted on one of the brackets 124 for driving the take-up roller 128 via a suitable reduction gear 138, and this motor 136 also drives the remaining three rollers of the dust removal mechanism 50. drive

Next, according to FIGS. 2 and 4 to 10, the central compartment 46
The cam actuation control mechanism, generally designated 140, housed therein will now be described in detail.

The output shaft 72 of the low speed gear motor 70 has a second transmission mechanism 142 having a belt and pulley, which transmission mechanism 142 is secured to the underside of the control panel stage 60 by a suitable bracket. control box 14
Worm shaft 144 extending across the lower end of 6
to drive.

This worm shaft 144 has a worm gear 148 which itself is connected to another worm gear 1.
50, the hub of which is supported by an internal camshaft 152.

The internal camshaft 152 is rotatable relative to a distance scale 156 formed as a foot scale on the control panel;
It has an indicator member 154 to which is attached.

Control box 146 is positioned such that a pair of microswitches 160 and 162 are engaged and actuated by the flat surfaces of respective switch actuation cams 164 and 166.
is located inside.

Only one switch actuating cam 166 of the two switch actuating cams 164, 166 is arranged to rotate in cooperation with the internal camshaft 152.

As is clear from FIG. 10, the switch actuation cam 16
6 is not directly fixed to the internal camshaft 152, but is fixedly connected to a knob 168 which is itself fixed to the internal camshaft 152.

Furthermore, a clutch plate 170 is fixed to the internal camshaft 152 so that it can rotate together with the internal camshaft 152.

Therefore, when the internal camshaft 152 rotates, the clutch plate 170, the hub 168, the switch actuating cam 166 fixed to the hub 168, and the indicating member 154 are rotated.
and distance scale 156 and curved actuation slot 174
together relative to a stop pin 172 that is adjustable within.

The switch activation cam 168 is configured as a cam, also called a "distance cam", and determines how far the maintenance machine 10 travels along the lane 12, stops, and then travels in the opposite direction back to its starting position. Define the movement.

For example, the maintenance machine 10 reaches the bottom of the lane 12 approximately 13.
To move 5 meters (45 feet), stop, and return to the starting position α, first set the stop pin 1γ2 at approximately 13.5rrL (45 feet) on the distance scale 156. Bye.

Next, move the indicating member 154 to the distance scale zero point.
The switch actuation cam 166 is then adjusted and the microswitch 162 controlled by the switch actuation cam 166 is released to its open or inactive position.

When the maintenance machine 10 is activated and the indicator member 154 reaches a distance of 13.5 rrL (45 feet) on the distance scale 156, the rotating contact of the microswitch 162 rides on the protruding curved portion of the switch actuation cam 166. , this microswitch 162 is closed and operates the low speed gear motor γ0 in a direction such that the maintenance machine 10 travels forward along the lane 12 from the foul line 16 toward the bowling pin.

The internal camshaft 152 is operatively connected to the internal camshaft 152 by a friction disc 176 interposed between the worm gear 150 and the clutch plate 170 to create a transmission connection therebetween. Corresponding to the movement of the worm gear 150, it begins to rotate in a counterclockwise direction as shown in FIG.

If internal camshaft 152 rotates indicator member 154 to zero, this indicates that maintenance machine 10 has advanced 45 feet down lane 12 toward the pin. In this case, the rotating contact on the arm of the microswitch 162 falls off the curved portion of the switch actuating cam 166 (shown immediately before in FIG. 9), activating the drive motor reversing circuit as described below.

The maintenance machinery 10 is then retracted from the pin toward the foul line 16 and when the feeler switch 178 mounted on the side panel 22 reaches the end of the groove 14 at the starting position, the feeler switch 118 is activated. When activated, the operation of the maintenance machine 10 is stopped.

During retraction, the internal force shuffle l-152 rotates in a clockwise direction and the microswitch 162 is closed again when the microswitch 1620 rotating contact is located in the bend of the double actuated cam 166.

Once the stop pin 172 is adjusted along the distance scale 156, simply grasping the indicator member 154 and rotating it relative to the distance scale 156 will reset the switch actuating cam 166 for another different distance run. I can do it.

Because of the conductive friction coupling defined by friction disc 176 , switch actuation cam 166 can be moved relative to worm gear 150 without moving switch actuation cam 166 on internal camshaft 152 . can be reset (rotated).

In a similar fashion, switch actuation cam 164 is adjustable relative to worm gear 150.

To do this, a hollow external camshaft 180
are arranged telescopically outside the inner camshaft 152, and these camshafts can be pivoted coaxially and independently of one another.

The switch actuation cam 164 is connected to this external camshaft 180.
The indicator member 182 moves along the distance scale 156 in the same manner as the indicator member 154, but the indicator member 18
2 is attached inside the indicating member 154.

Arm 184 is similarly attached to external camshaft 180 and is pivotable relative to a limit stop 186 that is fixedly coupled to control box 146 .

Arm 184 is adjustable on external camshaft 180 simply by loosening and retightening the tightening screw.

The inner camshaft 152 and the outer camshaft 180 are electrically coupled by a friction disk 188 interposed between the opposing surfaces of the switch actuating cam 164 and the switch actuating cam 166. The switch actuating cam 164 and the switch actuating cam 166 themselves are arranged side by side and are initially loaded with a spring force by a compression spring 190 which is arranged between the control box 146 and the switch actuating cam 164. and for this reason,
As shown in FIGS. 5 and 10, switch actuating cam 164 is pushed toward switch actuating cam 166. As shown in FIGS.

In this way, the inner camshaft 152 and the outer camshaft 180 are operatively connected to each other by the friction disc 188 so that they rotate together.

Switch actuating cam 164 in substantially the same manner as switch actuating cam 166 controls maintenance machine 100 mileage.
controls the oil supply circuit.

First, when the indicating member 182 is located at the distance scale 156 that stops the refueling operation, the arm 1
The position of arm 184 is adjusted on external camshaft 180 such that arm 84 engages limit stop 186 .

Switch activation cam 164 must be set to cause microswitch 160 to close when indicator member 182 is returned to the zero position on distance scale 156.

For example, oil may be supplied to a range of approximately 4.5 m (15 feet) from the starting position out of a distance of approximately 13.5 rrL (45 feet) that the maintenance machine 10 is set to travel. The indicator member 182 is about 4.5 mm on the distance scale 156. (15 feet), the arm 184 may be set so that it engages the limiting stub 186.

When the maintenance machine 10 is set at the foul line 16, the worm gear 150 is connected to the internal camshaft 152.
Rotate counterclockwise as shown in Figure 6, and the friction disk 1
88 and compression spring 190 cooperate with each other to rotate outer camshaft 180 in the same direction and at the same speed as inner camshaft 152.

The indicating member 182 begins to move along the distance scale 156 toward zero, and at the same time the microswitch 160
The rotating contact of the arm falls onto the plane of the switch actuating cam 164, placing the microswitch 160 in its normal open position, contrary to the case of the microswitch 162.

This causes the compression spring 112 to pivot the sump 102 away from the rear panel 26 and
06 is in contact with the intermediate roller 80.
It means that it holds 02.

As already mentioned, in this case oil is conveyed to lane 12 and applied to the lane surface.

If the maintenance machine 10 were to advance approximately 15 feet along the lane 12, the indicator member 182 would return to zero on the scale, at which point the rotating contact on the arm of the microswitch 160 would be switched off. cam 164
the microswitch 160 is closed.

When the microphone o switch 160 is closed, the solenoid 114 pivots the sump 102 to its inactive position, in which case the supply of oil to the lane 12 is stopped.

As long as microswitch 160 is closed, no oil is supplied to lane 12.

Similarly, the switch actuation cam 166 is opened again by the microswitch 160 being moved out of the bend of the switch actuation cam 164, thereby shutting off the 7V/id 114 and restarting the oil supply. Connect the micro switch 162 again and connect the low speed gear motor 1o.
Activate the reversing circuit.

Therefore, when the maintenance machine 10 begins to retreat, the microswitch 160 remains closed and, as a result, the oil supply remains stopped.

This may cause the pointing member 182 to be erroneously inserted into the pointing member 154.
This becomes important when the scale is set to a distance longer than .

This is because when the maintenance machine 10 travels the distance indicated by the indicator member 154, the switch activation cam 166 actuates the microswitch 162 to reverse the polarity of the low speed gear motor 70, thereby moving the maintenance machine 10 to the foul line 16. At the same time, the oil supply device 42 may be stopped until the next work cycle is started again.

To change the oil supply distance, the arm 184 is loosened from the external camshaft 180 and the indicator member 18
The arm 184 is adjusted so that it engages the limit stop 186 when the external camshaft 1 is positioned at the desired distance on the distance scale 156.
Just fix it to 80.

Of course, this differs slightly from the type of adjustment of the stop pin 172 of the internal camshaft 152, but as can be seen, both types of adjustment are substantially similar.

At the start of maintenance work, the maintenance machine 1o is ready for work simply by grasping the pointing member 154 and the pointing member 182 and rotating them clockwise as seen in FIG. 6.

Even if for some reason one switch actuating cam were to move relative to the other actuating cam or worm gear 150, this relative positional shift due to the transmission friction disks 176, 188 would be The reset stroke instantly returns it to the predetermined position.

Similarly, even if a malfunction of the switch or the like were to occur, such as by causing the arm 184 to hit the brake stop 186 with significant force, operation would not be possible without damage to the switch actuation cam, camshaft, and the like. is retained.

Mochironkonoko has a fixed bonding mechanism,
This is not possible with known types of devices that do not have elastic coupling mechanisms.

Next, with reference to FIGS. 2, 11, 12, and 13, the braking mechanism, generally designated by the reference numeral 192, will be described.

A brake drum 194 is rotatably attached to the main drive shaft 64 together with the main drive @64.
4 has an annular groove 196 that tapers inwardly.

A solenoid 198 is attached to the bottom surface 28 of the housing 18, and the plunger 2 of the bracket solenoid 198
00 is movable in a direction perpendicular to the axis of the main drive shaft 64.

A tension spring 202 is provided between the front partition wall 44 and the plunger 200, and the tension of the tension spring 202 causes the plunger 200 to normally move to the solenoid 198.
When the solenoid 198 is actuated, the plunger 200 is retracted against the tension of the tension spring 202.

An L-shaped member 204 is attached to the end of the plunger 200 such that the generally horizontally extending leg 206 of the member 204 mates with an annular groove 196 in the brake drum 194. It is housed within a guide member 208 which is fixed to the bottom surface 28 and is reciprocally movable within a tunnel-shaped guide member 208 .

A relatively narrow neck 210 projects from the generally horizontal leg 206 and defines an extension;
(A wedge-shaped brake shoe 212 is attached.

The cross-sectional shape of this brake shoe 212 is an annular groove 196.
When the solenoid 198 is not activated, the brake shoe 212 is moved by the tension force of the tension spring 202 to the brake drum 1.
94 in tight frictional engagement.

Any wear on the brake shoes 212 will only cause the brake shoes 212 to be pushed further into the annular groove 196, so that the braking mechanism 192 is self-adjusting.

Next, the control circuit will be explained in detail with reference to FIG.

As soon as the maintenance machine 10 is connected to a power source, the pilot light 214 is illuminated to indicate the "on" condition of the maintenance machine 10.

Assuming that the stop pin 172 and limit stop 186 have been previously adjusted, simply rotating the indicator members 154 and 182 associated with these stops will cause the maintenance machine 10 to begin operating according to the predetermined program.

When the maintenance machine 10 starts operating, the main switch 216
and interlock switch 218 are simultaneously placed in the closed position.

This allows the main switch 21 to operate simultaneously.
6 and interlock switch 218 by means of a conventional switch actuating member (not shown).

When the main switch 216 is closed, this main switch 21
6 normally open contacts 216(1) and 2
16(2) will also be closed.

Power is then supplied to the drive motor 118 via the terminal board connector TBS and one contact 216(1).

The power passing through this terminal board connector TBS is transferred to the other contact 2.
16(2) to the terminal board connector TBS.

Similarly, power is supplied to motor 136 via contact 216(2) and terminal board connector TB9.

A special switch 220 is provided so that they are connected in parallel to each other via the terminal board connector TB9, the normally closed contact 220(1) of this switch 2200, and the instantaneous interlock switch 218. A current circuit is formed to the coils of relays 222 and 224.

When relay 224 is activated, this relay 2240
The normally open contact 224(1) closes to form a circuit to the normally closed microsinch 162;
The interlock switch 218 held by this microswitch 162 is reopened.

When the coil of relay 222 is activated, this relay 22
The two normally open contacts 222(1) are closed and the brake solenoid 198 is actuated to disengage the brake shoe 212 and release the main drive shaft 64.

Similarly, the current circuit to the starting winding of the low speed gear motor 70 includes normally open contacts 222(1),
222(2) and 222(3).

When the winding of starting is eliminated, low speed gear motor 1
The main winding of 0 is contact 2, which is normally open.
22(1) and the conductor rAJ of this low speed gear motor 70.

Therefore, when the brake is released and the low speed gear motor 70 is started to drive the maintenance machine 10 forward, the maintenance machine 10 moves away from the foul line 16 and heads toward the pin along the lane 12. and move.

Assuming that the automatic covering function of lane 12 is achieved,
3-pole 2-interlock switch 226 and 2-pole 2-interlock switch 2
28 is operated as shown.

Of course, the terminal board connector TBS has a high voltage at this point (, the center contact 226 of the 3-pole 2-interlock switch 226 (
0) is connected to the terminal board connector TBS (・ru).

If the relay 224 is activated, the terminal board connector TBS,
Contacts 226 (0) and 2 of the 3-pole 2-interlock switch 226
26(1), microswitch 160, normally open contact 224(2) of relay 224, which is closed at this point, and contact 228(1) of two-pole two-interlock switch 228 to pilot lamp 230. A circuit is formed.

The pilot lamp 230 is always lit when the maintenance machine 10 is supplying oil, which means that the oil supply device 42 is activated, that is, the microsinch 160 is on the contact 160(1) as shown. This shows a state in which the solenoid 114 is not operating because the

However, if switch actuation cam 164 moves microswitch 160 from normally open contact 160(1) to normally closed contact i 60(2), contacts 226(0) and 226(1) ) actuates the solenoid 114, which causes the oil sump 102 to pivot rearward and to stop supplying oil to the puff member 98.

In this case, the circuit to pilot lamp 230 is broken and pilot lamp 230 goes out.

At this point, maintenance machine 10 no longer pumps oil into lane 1.
Do not supply to 2.

However, it is still moving toward the pin, and motor 136 and drive motor 118 are operated together with low speed gear motor 70.

Once the maintenance machine 10 has moved a predetermined distance, the switch activation cam 166 disengages the microswitch 162, which closes the normally open contact 1.
Contact 162(2) normally closed from 62(1)
be returned to.

When this microsinch 162 is released, relay 2
Contact 224(1) of 24 is opened again, thus cutting off the coil and deactivating relay 224.

Even if the relay 224 stops operating, the terminal board connector TBS, contact 226 (0), contact 22 to the solenoid 114
6(1) and contact 160 of microswitch 160
The circuit through (2) is still formed, so this solenoid 114 holds the sump 102 in the inactive position.

Once the low speed gear motor 10 begins to reverse in the manner previously described, this low speed gear motor 70
4 and thus moves the microswitch 160 back to the normally open contact 160(2).

Furthermore, even in this case, the solenoid 114 that holds the oil sump 102 in the non-operating position is connected to the terminal board connector TB.
9, contact 226(0), contact 226(1), normally closed contact 224(3) of deactivated relay 224;
, and microswitch 1600 is still activated by the circuit through contact 160(2), which is normally closed.

When the operation of the oil supply device 42 is thus stopped, the pilot lamp 230 remains extinguished because the contact 224(2) in the only circuit to the pilot lamp 230 is open. .

If the microswitch 162 is opened, the relay 222
The coil 222 is similarly deactivated, returning the contacts of the relay 222 to their normal state.

In practice, a mechanical delay element (not shown) is built into the reversing unit, which delays the low speed gear motor 70 for a period of one or two seconds until the maintenance machine 10 comes to a complete stop. Delays polarity reversal.

The starting winding in the opposite direction then connects the terminal board connector TBS, normally closed contacts 222(3).

It is started again by the circuit consisting of 222(4) and 222(5).

When the starting winding disappears, the main winding is continuously actuated via contact 222(3) and lead rAJ.

This normally closed contact 222(3) actuates the brake solenoid 198, causing the brake shoe 212
is held in the inactive position.

As soon as the maintenance machine 10 begins retracting toward the foul line 16, the switch activation cam 166 causes the microswitch 162 to close its normally open contact 16 again.
2 (2), but in this case, this switch actuating cam 166 is connected to relay 224 or this relay 2
It does not reactivate relay 222, which is connected in parallel to 24.

This is because the normally open contact 222(1) remains open and the interlock switch 218 remains open.

When the maintenance machine 10 returns to the foul line 16, the filler switch 118 of the main switch 216, which is in contact with the bottom of the groove 14 on each side of the lane 12, is removed from the shoulder (not shown) at the front end of the lane 12. 9 and is lifted, causing the main switch 216 to be re-opened.

This ends the automatic working cycle.

If by chance the arm 184 is incorrectly set and the maintenance machine 10 is programmed to supply oil for a longer distance than the correctly set travel distance, the microswitch 162 will normally be open. By positioning the relay 224 at the stop position via the contacts 224(1), which are shown in FIG.

If these contacts are re-opened again, the oil sump 102
The circuit to the solenoid 114 that holds the motor in the running position is connected to the terminal board connector TB9, contact 226 (rotating contact 226 (1)
, is immediately formed through the normally closed contact 224(3) as well as the normally closed contact 160(2).

In some cases, only puffing and dusting operations are required, and no coating operations are required.

In this case, the oil supply device 42 is completely stopped (
In this case, the 3-pole 2-link switch 226 in the circuit can be actuated to its alternate position while the 2-pole 2-link switch 228 is left in place.

In this way, the circuit to the microswitch 160 is completely bypassed, and the solenoid 114 that holds the oil sump 102 in the inactive position is connected to the terminal board connector TB9.3.
Normally open and otherwise closed contacts 226(2) of the two-pole two-interlock switch 226, contact 228(2) of the two-pole two-interlock switch 228, and normally closed contact 160 of the microswitch 160. (2) directly.

The circuit to pilot lamp 320 is also open at this point.

Additionally, it may be necessary to supply oil in both forward and reverse directions of the maintenance machine 10, and over the entire distance traveled.

In this case, the 3 pole 2 gang switch 226 and the 2 pole 2 gang switch 228 are both moved from the automatic mode to the alternating position.

Next, the circuit to the pilot lamp 230 is connected to the terminal board connector TB9, contact 226 (3) and contact 228 (3).
formed through.

The two-pole, two-way switch 228 is open at the contact 228(2), and even if the microswitch 160 is located at the normally closed contact 160(2), the contact 226(
1) is open, the solenoid 114 that holds the oil sump 102 in the running position is not actuated. Therefore, as soon as the main switch 216 is closed, a circuit is formed at the terminal board connector TB9 and the oil supply is closed. device 42
is activated continuously until filler switch 178 reopens main switch 216.

Referring now to switch 220, switch 220 is a special function switch whose purpose is to precondition puff member 98 prior to positioning it into contact with lane 12. It's about doing.

When the maintenance machine 10 is idled for a short period of time, the oil remaining on the surface of the puff member 980 is moved toward the bottom and collected there.

Therefore, before the maintenance machine 10 is positioned in the lane 12-to, the oil supply device 42 and the puff member 9 are
8 is preferably started together.

To do this, after actuating switch 220, until puff member 98 is substantially completely supplied with oil,
The switch 220 may be operated continuously.

When normally open contact 220(2) is closed, both the coils of relay 222 and relay 224 are activated via terminal board connector TBS.

Main switch 216 is terminal board connector TB5, contact 216
(1) and is closed to operate the drive motor 118 of the puff polishing device 42 via the terminal board connector TBS.

The coil of the activated relay 224 is connected to the contact 224 (1
) will be closed.

The interlocking switch 218 is only momentarily closed;
And the coil of the relay 224 is normally the contact 220 (])
contact 220(1) is open at the moment, so contact 224(1)
A separate circuit must be formed to hold the

When the coil of relay 224 is actuated directly as previously described, the conductor B leading from this coil to contact 224(1) will remain in contact 224(1) even though interlock switch 218 is open. ) remains closed.

Therefore, the circuit to the low-speed gear motor γ0 includes the terminal board connector TB5, the coil of the relay 222, the coil of the relay 224, the conductor B, the contact 224(1), and the micro switch 1.
62 contacts 162 (1), contacts 222 (1), contacts 22
2(2) as well as contact 222(3) and start winding is initiated.

Once the start winding is complete, the main winding of the low speed gear motor 70 is initiated and continued by lead A through the same circuit via contact 222(1).

Of course, this is necessary in order for the low speed gear motor γ0 to drive the oil transmission roller 90.

. Then, when the microswitch 160 is positioned on the contact 160(1) and the 3-pole 2-interlock switch 226 and the 2-pole 2-interlock switch 228 are actuated to automatic mode, the solenoid 114 is deactivated and the oil is turned off. Feeding device 42 is activated.

Next, the terminal board connector TBS, contact 226 (0), contact 226 (1), contact 160 (1), contact 224 (2)
A circuit is formed through 228(1) and the pilot lamp 230 is lit, indicating that the oil supply device 42 is in operation.

The circuit to the winding of low speed gear motor 70 via contact 222(1) has a parallel circuit to solenoid 198 which actuates brake shoe 212.

Thus, if switch 220 is held in its normally open contact 220(2) position, maintenance machine 10 will operate in the forward mode.

Since the low speed gear motor 70 is activated, the microsinches 160 and 162 are also rotated simultaneously with the preconditioning of the puff polishing device 42.

As a result, each indicator member 154, 182 is reset by rotating the member cooperating therewith against the respective lubricant.

[Brief explanation of drawings]

FIG. 1 is a perspective view of one embodiment of the present invention, FIG. 2 is a plan view of FIG. 1 with the top surface removed, FIG. 3 is a bottom view of FIG. 5 is an enlarged sectional view taken along line 5-5 of FIG. 2, FIG. 6 is an enlarged view of the distance scale mechanism of FIG. 1, and FIG. 7 is an enlarged sectional view of the distance scale mechanism of FIG. 8 is a sectional view taken along line 8-8 of FIG. 5, FIG. 9 is a sectional view taken along line 9-9 of FIG.
The figure is an enlarged cross-sectional view taken along line 10-10 in Figure 5,
The figure is an enlarged sectional view taken along line 11-1'l in Figure 2.
Figure 2 is a plan view of Figure 11, and Figure 13 is a plan view of Figure 11.
14 is a sectional view taken along line 13, and FIG. 14 is an electrical circuit diagram of FIG. 1.

Claims (1)

[Claims] 1. In an automatic floor maintenance machine for bowling lanes having a reciprocating device, the drive shaft 6
A reversible drive mechanism 34 is housed within the reciprocating device having surface-engaging drive wheels for driving the reciprocating device in forward and reverse directions along a predetermined course. 76 is disposed on the drive shaft 64 and is rotatably supported in contact with the bowling lane about a substantially horizontal axis extending perpendicular to the running direction of the reciprocating device; a lane polishing device 40 having a drive mechanism 120 for a buff roller 98; a storage member 102 for storing liquid provided and covering the bowling lane; and in the running position of this storage member 102, from the storage member 102 to the buff roller 9;
A conveying member 106 capable of conveying the coating liquid to the surface of
A lane covering device 42 is releasably connected to the buff roller 98 and is coupled to the storage member 102 to move the storage member 102 between its extended and retracted positions. A cam control member 114 is provided which can be moved to the operative or inactive position, and a cam member 164 is connected to the cam control member 114 for controlling the cam control member 114 to its operative or inactive position. , a transmission member 150 is connected to the drive mechanism 34, and a manual distance adjustment member 172 for changing the forward and reverse distances of the automatic floor maintenance machine to cover the lane surface.
, 166 are provided, and the distance adjusting members 172, 166 are provided with an elastic friction clutch 176 for connecting the transmission member 150 and the cam member 164 to create an adjustable transmission connection. An automatic floor maintenance machine for bowling lanes, characterized by: 2. In automatic floor maintenance machines for bowling lanes that have a reciprocating device, the drive shaft 6
A reversible drive mechanism 34 is housed within the reciprocating device having surface-engaging drive wheels for driving the reciprocating device in forward and reverse directions along a predetermined course. 76 is disposed on the drive shaft 64 and is rotatably supported in contact with the bowling lane about a substantially horizontal axis extending perpendicular to the running direction of the reciprocating device; A lane polishing device 40 having a drive mechanism 120 for a buff roller 98 is provided, and is disposed close to the buff roller 98 so as to be movable between a running position and a running position relative to the buff roller 98. a storage member 102 for storing a liquid that is covered with a bowling lane; and in the running position of the storage member 102, the buff roller 98 is removed from the storage member 102;
A lane coating device 42 having a conveying member 106 capable of conveying the coating liquid on the surface thereof is releasably connected to the buff roller 98 and is coupled to the storage member 102 to transport the storage member 102. A cam control member 114 is provided which can be moved to an active position and a non-active position between its running position and its running position, and this cam control member 114 is capable of controlling the cam control member 114 to its working position or its non-working position. A cam member 164 is connected to the cam control member 114, and a transmission member 150 is connected to the drive mechanism 34 for manual distance variation of the automatic floor maintenance machine forward and reverse distances to cover the lane surface. adjustment member 172,
166 is provided, and a resilient friction clutch 176 is provided on the distance adjustment members 172, 166 for coupling the transmission member 150 and the cam member 164 to create an adjustable transmission connection. and the drive mechanism 3
A braking device 192 is provided for stopping the outer wall annular V-shaped groove 1, which is rotatably fixed to the drive shaft 64 together with the drive shaft 64.
96 and a brake drum 194 disposed within said V-shaped groove 196 and reciprocatable between an engaged position and a disengaged position, in which said V-shaped groove 19
The brake shoe 212 is provided with a spring member 202 that applies an initial spring force to the brake shoe 212 in one direction. A drive member 198 is provided that can move the brake shoe 212 against the initial spring force of the spring member 202, and connects the drive member 198 and the drive mechanism 34 and controls the drive mechanism 34. Automatic floor maintenance machine for polling scenes, characterized in that an actuating member 200 is provided for actuating a braking position 192 to stop the reciprocating device whenever it is not in operation.