JPH0510117B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an automatic mahjong table, and more specifically, the present invention relates to an automatic mahjong table. The present invention relates to a tile alignment device that aligns a push plate on a table by linking a push-out mechanism that moves a push plate forward and transfers the tiles, and an elevator lift mechanism that lifts transferred tiles stacked in two levels.

(Prior Art) Conventionally, this type of device has been provided with a support rod for supporting an elevator and a support shaft holder for loosely fitting the support rod on both sides. 2.
A push plate, which is assembled and arranged to control the elevator's elevating and lowering, and transfer the two-tier stacked tiles from the standby standby to the elevator, is installed on an extrusion guide plate disposed on the frame, and operates the elevator. The drive shaft of the motor, on which two sets of gears with which two sets of lifting levers were interlocked, and a cam for operating the push plate, was rotatably supported by a drive bearing attached to a frame.

However, in such a device, two sets of lifting levers are required to raise and lower the elevator, and there are problems in countermeasures against twisting of the support shaft holder into which the support rod supporting the elevator fits loosely, and also Since the extrusion guide plate on which the push plate to be transferred to the elevator is arranged and the alignment unit bearing are individually fixed to the frame, the guide rail fits into the slide bearing on which the push plate is arranged. This has disadvantages such as difficulty in position adjustment.

(Problems to be Solved by the Invention) In the above device, the elevator elevating mechanism has two sets of elevating levers that contact the elevator support plate and is supported at two points, so it is difficult to finely adjust the parallelism of the elevating levers. It is difficult and time-consuming to assemble, and if used for many years, the parallelism will shift and become distorted, resulting in failure of the elevator lifting mechanism of the tile alignment device. As a result, when it was time to repair it, it was troublesome because it had to be taken apart for maintenance.

Furthermore, the forward and backward movement of the tile push plate is possible because two guide rails that fit through the slide bearings to which the push plate and push piece are attached are arranged on the extrusion guide plate fixed to the frame. In addition, it is necessary to finely adjust the parallelism of the two guide rails to prevent the slide bearing from twisting.

The present invention has been made to solve the above problems, and the elevator is raised and lowered by a roller of a rotating operating disk that supports one point, and an extruded guide plate with a guide rail is integrally formed with a drive bearing. The purpose is to provide equipment.

(Means for Solving the Problems) In order to achieve the above object, the tile alignment device for an automatic mahjong table of the present invention has a bevel gear and a cam supported at intervals on a drive shaft of a motor, The drive bearing that pivotally supports the drive shaft is formed integrally with the extrusion guide plate, and the extrusion lever, which has the cam roller in contact with the periphery of the cam located in the middle, has its lower end rotatably supported by the frame, and its upper end. The slide bearing, which has an extrusion roller that comes into contact with the push piece, and which is fitted into the guide rail and moves back and forth, has the push piece projecting downward, and consists of a push plate with a height that pushes out the two-tiered tiles, and as the cam rotates. An extrusion mechanism that moves the slide bearing back and forth to push out the two-tier stack of tiles on the standby to the elevator, and an operation that pivots on an operating disc with a gear meshing with the bevel gear at one end and an operating roller arranged around the periphery at the other end. The elevator lever, which has an elevator lever roller at its tip that contacts the shaft and the actuating roller, moves up and down with the other end pivoted, and the elevator lever roller is loosely attached to an elevator support shaft holder fixed to both sides of the frame. The tile alignment device is comprised of an elevator lifting mechanism that raises and lowers the elevator support plate by abutting against the lower end of the elevator support plate of the elevator support rod to be fitted. The tile alignment device is configured such that the elevator support plate moves up and down in conjunction with the operation of transferring the stacked tiles to the elevator, and further moves up and down in accordance with the rotation of the operating disk to raise and align the tiles stacked in two stacks onto the tabletop. be.

(Example) An example of the present invention will be described based on FIGS. 1 to 7.

FIG. 1 is a perspective view of the tile alignment device.

FIG. 2 is a plan view, FIG. 3 is a front view, and FIG. 4 is a rear view showing the arrangement of the main parts.

First, the elevator lifting mechanism will be explained.

Reference numeral 30 denotes an elevator operating shaft, which passes through the center of the main body and has an operating disc 31 at its tip.One operating roller 32, which draws an arc as it rotates, comes into contact with a lift lever 33. A roller 34 is provided. elevator 1
1 is provided with an elevator support plate 12 at its center, and the elevator lever roller 34 of the elevator lever 33 abuts on a parallel line at the lower end of the elevator support plate 12 on its center line.

Elevator support rods 13 hang down on both sides of the elevator 11 in parallel to the elevator support plates 12, and loosely fit into the elevator support shaft holder 14 fixed to the frame 80. A gear 37 is provided at the end opposite to the operating disk 31. Reference numeral 41 denotes a drive shaft directly connected to a motor 42, which is pivotally supported by a drive bearing 40 placed in the center of a frame 80, on which a cam 29, a bevel gear 36, and a micro SW disk 71 having a recessed portion on its outer periphery are arranged. . 60 is a rail cover that holds the two-tier stack of tiles P lined up on the waiting stand 10;
The hinge 61 and the tension spring 62 apply tension when opening, and the one-touch structure is maintained so as to maintain the open state.

Next, the extrusion mechanism will be explained with reference to FIGS. 5 and 6, which show cross-sections taken along line AA in FIG. 2.

20 is an extruded guide plate that is integrally molded with the drive bearing 40. Reference numeral 23 denotes guide plate rails, and two guide plate rails are arranged in parallel within the extrusion guide plate 20. 22
is a slide bearing and is arranged so that the guide rail 23 is fitted therethrough, and a push plate 21 and a push piece 24 are provided above and below, respectively. Tension springs 25 are arranged on both sides of the extrusion guide plate 20 so that the push plate 21 is biased in the backward direction.

Reference numeral 26 designates an extrusion lever that has an extrusion roller 28 at its upper end that contacts the pressing piece 24, a cam roller 27 in the middle, and a lower end rotatably supported by a frame 80. 29 is arranged so that a cam abuts the cam roller 27 and the rotation of the drive shaft 41 moves the push plate 21 back and forth via the push lever 26. 83
In the chain passage, a chain rail 82 for conveying two-tiered tiles P is cut out below the conveyor 81. (See FIG. 1) Reference numeral 72 denotes a micro SW, and the position where it is locked in the concave portion of the micro SW disk 71 is stored in the computer as a fixed position, and each operation is controlled.

(Function) Next, the function of the tile alignment device of the present invention will be explained in detail based on the drawings.

The motor 42, which has an integrated reduction gear, is a synchronous motor and rotates once in a predetermined time (approximately 6 seconds), while the elevator 11, which is stopped at the raised position (fixed position) parallel to the desk, descends and moves to the second stage. It is adjacent to a waiting stand 10 on which stacked tiles P are waiting. Next, the push plate 21 in the retreated position advances to transfer the two-tiered tiles P to the elevator 11. The transferred elevator 11 ascends, arranges the two stacked tiles P on the tabletop, and stops, completing one cycle.

Since the push plate 21 is biased toward the retracted position by the tension spring 25, the cam roller 27 of the push lever 26 is always in contact with the outer periphery of the cam 29.

In FIGS. 5a, 5b, and 4, the elevator 11 is in the raised position, the push plate 21 is in the retracted position, and the two stacked tiles P are on standby on the standby stand 10.

The actuating roller 32 of the actuating disk 31 is in contact with the lift lever 33 at the top of the center line, and the lift lever roller 34 of the lift lever 33 is in contact with the elevator support plate 12 on the center line. Micro SW7 at this time
2 shows the normal position where the lever button is locked in the recess of the micro SW disc 71.

When the operating shaft 30 starts rotating in the direction of the arrow in FIG. 4, the operating roller 32 descends and the elevator 1
1 is urged downward by its weight and stops at a lowered position adjacent to the standby table 10.

Next, the cam roller 27 that is in contact along the outer periphery of the cam 29 rotating in the direction of the arrow in FIG.
The push plate 21 of the slide bearing 22 fitted into the slide bearing 22 moves the two-tiered tiles P forward against the biasing force of the tension spring 25.

6a and 6b show a state in which the cam 29 has rotated about half a turn and the push plate 21 has transferred the two-tier stack of tiles P onto the elevator 11. FIG. Micro SW at this time
72 is in contact with the micro SW disk 71 along its outer periphery.

Next, unless the interlock of the position detection sensor (not shown) of the two-tiered tiles P placed on the elevator 11 is released, the drive motor 42 continues to rotate, and the actuating roller 32 of the actuating disk 31 moves up and down. The lever 33 is raised, and the elevator lever roller 34 pushes up the elevator 11 in an almost linear arc movement on the center line of the lower flat part of the elevator support plate 12 to form two stacks of tiles P arranged on the table. At this time, the micro SW 72 is set in the recess of the micro SW disc 71, and one cycle operation of the tile alignment device is completed.

(Effects of the Invention) As is clear from the above explanation, the automatic mahjong table tile arrangement device of the present invention has the following effects.

By integrally molding the extrusion guide plate with the drive bearing, it is possible to assemble and adjust the components of the extrusion mechanism, such as the cam, extrusion lever, slide bearing with a push plate and push piece installed above and below, in advance. Because of the structure in which the pusher unit is attached to the frame, the positioning of the slide bearing that moves the pusher plate forward and backward by fitting into the guide rail installed in parallel inside the extrusion guide plate is simplified, and there is no twisting. assembly,
Adjustment and maintenance are also easy, and manufacturing costs can be significantly reduced.

In addition, the elevator lifting mechanism has a single operating axis,
The actuating roller of the actuating disc touches the lift lever at the top of its center line, and the lift lever roller of the lift lever touches the elevator support plate on the center line, so the circular movement of the actuating roller is transferred to the lift lever roller of the lift lever, which is connected to the elevator. The center of the support plate is moved up and down in a straight line, and the lifting mechanism has one operating shaft, one operating disk, and a lifting lever, so there is no need for fine adjustment of parallel positioning of the elevator support plate. Assembly, adjustment and maintenance are easy, and manufacturing and processing costs can be reduced.

Furthermore, it is possible to reduce the clearance of the support rod that supports the elevator by loosely fitting it into the elevator support holder arranged parallel to the frame, and the backlash can be eliminated, which has the effect of improving the performance of the equipment. is remarkable.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the tile alignment device of the present invention, Fig. 2 is a plan view, Fig. 3 is a front view, Fig. 4 is a rear view, and Figs. 5 and 6 (sectional view taken along line A-A in Fig. 2). FIG. 7 is an explanatory diagram of the operation of the tile alignment device, and FIG. 7 is an explanatory diagram of the operation showing the lowered position of the elevator. The main symbols in the drawings are as follows. 10...
Waiting stand, 11...Elevator, 12...Elevator support plate, 13...Elevator support rod, 14...
Elevator support shaft holder, 20... Extrusion guide plate, 21... Push plate, 22... Slide bearing, 2
3... Guide rail, 24... Push piece, 25... Tension spring, 26... Push lever, 27...
Cam roller, 28... push roller, 29... cam, 30... operating shaft, 31... operating disk, 32...
... Operating roller, 33... Elevating lever, 34... Elevating lever roller, 40... Drive bearing, 41... Drive shaft, 60... Rail cover, 80... Frame.

Claims (1)

[Scope of Claims] 1. A bevel gear and a cam are pivotally supported on a drive shaft of a motor at intervals, and a drive bearing that pivotally supports the drive shaft is formed integrally with an extruded guide plate, and is in contact with the periphery of the cam. The push lever, which is located between the contacting cam roller, has its lower end rotatably supported by the frame, and has a push roller at its upper end that comes into contact with the pusher piece, and a slide bearing that is fitted into the guide rail and moves back and forth moves the pusher piece. A push-out mechanism consists of a push plate protruding downward and high enough to push out the two-tier stack of tiles, and as the cam rotates, it moves a slide bearing back and forth to push the two-tier stack of tiles on the standby platform into the elevator, and meshes with the bevel gear. The operating shaft has a gear on one end and an operating disk with an operating roller arranged around its periphery, and an elevating lever that comes in contact with the operating roller. and an elevator lifting mechanism that moves up and down by touching the lower end of the elevator support plate of the elevator support rod that loosely fits into the elevator support shaft holder fixed to both sides of the frame body. In the device, the push lever moves back and forth as the cam rotates, and the push plate is linked to the operation of transferring the two-tier stack of tiles on the waiting stand to the elevator, and further, as the operating disk rotates, the push lever moves back and forth, and the push plate moves the elevator support as the operating disk rotates. A tile aligning device for an automatic mahjong table, characterized in that a board moves up and down to raise and align two stacked tiles on the tabletop.