JP3663002B2 - Advancing and retracting device for operating member - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of an advancing / retreating operation device for an operation member that restricts refraction in the advancing / retreating direction of a belt and advancing / retreating it, and an application device thereof.
[0002]
[Prior art]
Conventionally, when changing prizes at pachinko parlors, the boxes containing pachinko balls are stacked in multi-stages on hand-drawn trolleys, traveled to the measuring instrument, and the boxes are lifted from the trolley by hand and inserted into the measuring instrument. Is being lifted and transported.
Therefore, in view of the need to perform these operations easily and efficiently, a lift carriage using a hydraulic cylinder having a known configuration is manufactured, and a box is placed on the lifting platform to lift the box for each measurement. I tried to do it by the differential of the hydraulic cylinder.
[0003]
[Problems to be solved by the invention]
However, in the lift truck constructed as described above, the linear reciprocating motion generator composed of a cylinder and a piston provided between the elevator base and the machine base is installed with a cylinder length equal to or greater than the reciprocating distance of the piston. As a result, the size of the airframe increases, and a driving means comprising a large number of parts such as a hydraulic pump, a switching operation valve, a hydraulic tank and piping is required, and there are drawbacks such as installation space restrictions and an increase in the weight of the airframe. Therefore, it is difficult to adapt as a lift cart that requires quick and simple handling in a narrow passage space in crowds.
Further, the hydraulic cylinder device has problems such as noise generation, complicated configuration and high cost, and complicated maintenance work such as oil leakage prevention management.
[0004]
[Means for Solving the Problems]
The present invention uses the following means to solve the conventional problems.
First, in the advancing / retreating operation device in which the belt body 5 having the refraction-preventing restricting member 3 is provided on the machine base 2 side so as to be able to advance and retreat, and the operation member 7 is formed on the head of the belt body 5, The operation member 7 is guided and supported by a support column 2a erected on one side of the machine base 2, and is extended to one side along the machine base 2 so as to secure a space above, and the end side is the side. the band member 5 so as to erected I along the posts 2a direction capable storing and feeding, the other the strip 5 forming a pair to band member 5 housed along the struts 2a and oppositely arranged, said other The belt member 5 is detoured between the machine base 2 and the actuating member 7, and is an actuating member feeding device for accommodating the belt member 5 so as to be able to be fed out .
[0006]
Secondly , the operating member 7 is formed as a lifting platform that covers the upper side of the machine base 2, and the lift carriage 1 is configured by providing traveling wheels 2 k on the machine base 2 side.
[0007]
Third, it is characterized in that the concatenation of the outer periphery of the lifting platform 7 and the outer periphery of the base 2 in a stretchable cover member 7c.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. 1 to 3 is a lift carriage (hereinafter referred to as a machine body) shown as an example of an advance / retreat operation device for an operation member, and has traveling wheels (casters) 2k at four corners and a handle (handle) 2a for an operation handle. A feeding device 6 as a linear motion generating device is provided on the left and right sides of the machine base 2 that is provided with a regulating member 3 so that the operating portion 5a can be moved forward and backward by a pair of chains (band bodies) 5 and 5 having a regulating member 3. A box in which a pachinko ball is accommodated on the lifting platform 7 by forming a plate-shaped lifting platform (operating member) 7 on the head of the chain 5 of the feeding device 6 so as to cover the upper side of the machine base 2. It is configured to be able to run while placing W or the like so that it can be raised and lowered.
[0009]
The column 2a has a base formed in a gate shape and is supported upright on a support arm 2b projecting from the rear of the machine base 2, and the column 2a has a mounting cover suspended from the rear of the elevator 7 A support guide member that guides and supports the column 2a on one side of the lifting platform 7 when the lifting platform 7 is moved up and down by inserting the guide cylinder (guide member) 7b at the lower end of 7a so as to be slidable. In addition, it is possible to move up and down stably and smoothly.
Reference numeral 7c denotes an expansion / contraction cover made of a bellows film body that surrounds the outer periphery of the machine base 2 and the lifting / lowering base 7 so as to be extendable / contracted. is there.
[0010]
The feeding device 6 includes a pair of front and rear chains 1 each having a regulating member 3 housed in a later-described feeding case (feeding guide) 8, and both sides of a drive shaft 9 a that is pivotally supported on a machine base 2 by a metal 2M. A driving sprocket (driving wheel) 9 that is attached to the shaft and a driven sprocket (idling wheel) 10 that is supported by the metal 2M and 2M so as to face the driving wheel 9 and is wound around the shaft 9a. A transmission chain 9c is stretched between the attached input sprocket 9b and the motor sprocket M1 of the motor M installed in front of the drive shaft 9a.
[0011]
The feeding case 8 is formed into a quadrangular tubular section, and is divided into feeding cases 80 and 80 for storing the driving-side chain 5 and feeding cases 81 and 81 for storing the driven-side chain 5. The length is the same as the length of the operating portion 5a formed when the chain 5 is drawn out, and the chain 5 is drawn out and stored satisfactorily.
The right-hand feeding case 80 is detoured upward from the feeding portion of the drive wheel 9 through the lower side of the motor M so that the end portion is close to the chain 5 in the standing posture. Further, the left-side delivery case 81 extends rearward from the delivery side of the idler wheel 10 along the machine base 2, and the end side is erected upward along the support column 2a. The feeding case 8 is not limited to a cylindrical shape, and may be configured as a guide rail.
[0012]
Reference numeral 11 denotes a battery for the power source of the motor M installed in the space formed between the feeding cases 81 and 81 at the rear of the drive shaft 9a. Since it extends toward the side, the space allowing the battery 11 to be installed can be effectively used to provide a compact space, and the upper space can be widely formed. Maintenance work can be facilitated, and the lifting platform 7 can be brought as close to the battery 11 as possible so that the ground height can be lowered.
[0013]
The upper ends of the left and right feeding cases 81, 81 are connected and reinforced by a U-shaped cover 12 in a side view that also serves as an operation panel. The upper surface of the cover (operation panel) 12 includes a battery main switch and An operation switch 13 such as an elevating switch, a remaining amount display lamp 15 of the battery 11 and the like are installed and are arranged close to the column 2a.
Further, the motor M employs a commercially available position stop transmission mechanism (brake speed reducer) type capable of maintaining a drive and stop position, thereby accurately maintaining an arbitrary stop position of the operating portion 5a. I can do it. The above function may be achieved by a mechanical position stop transmission mechanism such as a mesh transmission between the worm and the worm wheel. Further, the motor is not limited to the battery, and may be operated by being connected to a power source such as a house or a car. Further, the motor may be manually operated without using a motor.
[0014]
Further, as shown in FIG. 2, the restricting member 3 is formed so as to protrude from the link plate 50 of the pair of chains 5 for each link, and has a wedge shape with a thick end portion in a side view and a plan view. Thus, the chain 5 is formed wider than the width of the chain 5 and is made to wrinkle at the time of feeding while facing each other.
Thereby, when the drive wheel 9 is rotated forward (in the direction of the solid line arrow), the chain 1 that meshes with the drive wheel 9 and the idle wheel 10 can be simultaneously extended upward from the supply cases 80 and 81 and extended. .
[0015]
At this time, the chain 5 on the side of the idler wheel 10 connected to the chain 5 wound around the drive wheel 9 via the lifting platform (operating member) 7 is smoothly moved from the feeding case 81 while the idler wheel 10 is driven to rotate. It will be paid out.
The chains 1 and 1 are both retracted by the reverse drive of the drive wheel 9 to move the elevator 7 down and freely move up and down and stop operating.
A guide member 8 a is provided below the feeding portion of both the chains 5 and 5 and is provided along the feeding rotation locus of the regulating member 3.
[0016]
As described above, the lift carriage 1 that is compactly configured with a simple mechanism can lower the ground height of the lifting platform 7 as much as possible. Therefore, the lifting platform 7 is lowered to the lowest level as shown in FIG. In the mounting posture, for example, two rows of boxes W containing pachinko balls as actuated objects are juxtaposed on the lifting platform 7 and stacked in multiple stages to the height of the handle (post) 2. By manually pushing 2, a large number of boxes W can be traveled and transported stably and easily.
[0017]
Next, when the operation switch 13 is raised, the motor M rotates in the forward direction and the driving wheel 9 is rotated in the direction of the arrow. Therefore, the chain 5 meshing with the other is provided from the feeding cases 80 and 81 together with the other chain 5 provided. Thus, the actuating portion 5a can be elongated while joining the regulating members 3 in a bowl shape, and the lifting platform 7 provided on the head can be raised as shown by the dotted line in FIG.
[0018]
At this time, the actuating portion 5a becomes a columnar member having rigidity and extends and operates, the heads of the chains 5 and 5 are connected to each other by the lifting platform 7, and the paired chains 5 are on opposite sides. By restricting the refraction by the restricting member 3, refraction in the inward and outward directions (opposing directions) is prevented, and the refraction in the lateral direction is prevented by the link joining of the chain 5 and the wide width of the restricting member 3. Since it is prevented by joining, the chain rigidity at the time of expansion | extension can be created favorably, and the leg body of the lifting platform 7 can be comprised firmly.
[0019]
Further, when the lifting platform 7 is moved up and down by the feeding device 6, the column 2 a erected at a portion separated from the feeding device 6 is slidably supported by the lifting guide guide member, so that the horizontal posture is maintained. Thus, it is possible to provide a lift carriage (advance / retreat operation device) 1 having a simple and compact configuration, which can perform the ascending / descending operation stably and smoothly and satisfactorily achieving the initial purpose.
[0020]
Further, as shown in FIG. 5, the feeding device 6 is not limited to the above-described embodiment, but is rigid by connecting the regulating members 3 that are paired within the interval between the chains 5 and 5 face-to-face when the chains 5 and 5 are fed. You may make it form the column-shaped action | operation part 5a which has. Further, both the chains 5 and 5 may be wound and driven using drive wheels 9 and 9.
Furthermore, as shown by the dotted line in FIG. 4, a single feeding device 6 may be provided in the center of the machine base 2, and in this case, the regulating member 3 may be formed wide.
[0021]
The operating force of the operating part 5a described above can be increased to the same level as the allowable load of the chain used as the feeding part, and it has sufficient durability and can suppress the occurrence of troubles and the like. It is possible to reduce the size of the lift truck and other various working devices used.
Furthermore, the operation of the feeding device 6 can be performed as desired with only simple electrical wiring, and the speed control can be easily performed, so that the construction can be made inexpensive and easy to operate.
[0022]
Therefore, the lifting platform 7 configured as described above can be moved up and down satisfactorily, and in the lowered state, there is no need to leave a column portion such as a hydraulic cylinder like a conventional hydraulic lifting device, and it is simple. With such a configuration, it is possible to manufacture a working machine such as a lifting device with high convenience.
Further, as the elevating platform 7 moves up and down, the telescopic cover 7c smoothly moves in the vertical direction while covering the periphery, so that it is possible to satisfactorily prevent intruders from entering the outside without exposing the inside.
[0023]
The chain 5 and the regulating member 3 may be made of iron as shown in the embodiment, or may be made of plastic or ceramic material according to the application. As a linear reciprocating motion generator used in an atmosphere and a polluted environment such as sludge, durability and reliability can be improved.
Further, in the case of using a plastic material, there is an advantage that the installation on a working device, equipment, etc. that requires a reduction in size and weight can be optimized, and a plurality of regulating members 3 can be integrally formed on the belt 5. The cross-sectional shape of the band 5 may be a flat belt shape or a curved V-shaped belt.
[0024]
In the said embodiment, although the feeding apparatus 6 which forms the action | operation part 5a by providing the chain | strands 5 and 5 which each have the regulating member 3 was shown, it is not restricted to this but the regulating member 3 is combined with the feeding guide 8. The operating portion 5a may be formed only by the one-side chain 5 having a belt, and a belt body (not shown) that is driven in a different direction can be extended to support the operating portion 5a of the chain 5. It may be provided.
In this case, as a lifting mechanism that lifts and lowers the door window of the car so that it can be opened and closed, it can be compactly integrated in the door and can be optimized.
[0025]
Next, with reference to FIGS. 6 and 7, an embodiment relating to another example of use of the advance / retreat operation apparatus according to the present invention will be described.
In the embodiment shown in FIG. 6, the machine base 2 having the feeding device 6 is supported upward by the support column 2 a via the receiving base 20, and the operation member 7 suspended on the operation unit 5 a is slidably supported by the support column 2 a. And the application example of the advancing / retreating operation apparatus which comprised the press machine 1 so that it might become a press member with this operation member 7 is shown.
Note that the above-described usage mode is not limited to a press machine, and may be applied to a conventional machine tool or processing apparatus by installing the machine body sideways and reciprocating the operation member 7 left and right.
[0026]
In the embodiment shown in FIG. 7, the operating member 7 is slidably guided to the column 2 a erected between the floor surface F and the ceiling surface C on the side of the machine base 2 having the feeding device 6 so as to be an elevator stand. An application example of the advancing / retreating device configured as shown in FIG. 1 is shown, and the actuating member (elevator stand) 7 can be smoothly moved up and down with respect to the floor F1 on the floor with a simple and compact configuration according to the storage amount of the chain 5. Therefore, it can be optimized as a simple elevator in a general house or factory or work place.
[0027]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained. According to the first aspect of the present invention, the operating member can be stably advanced and retracted while being supported by the support column and the belt body of the feeding device, and the belt body can be extended along the standing direction of the support column. Thus, it is possible to provide an advance / retreat operation device for an operation member that can be configured in a compact manner without increasing the size of the airframe. In addition, it is possible to provide a simple and inexpensive forward / backward operating device in which both are close to each other without leaving a column portion such as a hydraulic cylinder, unlike a conventional hydraulic lifting device between a machine base and an operating member. . In addition, by placing one of the pair of belts along the support and detouring and storing the other belt between the machine base and the operating member, a space can be widely formed above the belt on one side, The size can be reduced without extending the longitudinal length of the airframe, and the forward / backward operation can be smoothly performed without greatly exposing the belt body to the outside of the airframe.
[0029]
According to the second aspect of the present invention, the lifting platform formed with a wide mounting surface can satisfactorily cover equipment such as a lower feeding device, so that a highly convenient lift cart that is compactly packed with a simple configuration can be provided. Can be provided. Accordingly, the present invention has a feature that it can be miniaturized and optimized as a lift cart for placing and transporting boxes and the like containing pachinko balls in a pachinko parlor.
[0030]
According to the invention of claim 3 , the cover body can always satisfactorily cover the outer periphery of the elevator base and the machine base according to the advance / retreat operation of the elevator base.
[Brief description of the drawings]
FIG. 1 is a perspective view in which a feeding device according to the present invention is configured as a lift truck.
FIG. 2 is a side sectional view of FIG.
FIG. 3 is a plan sectional view of FIG. 1;
FIG. 4 is a front sectional view of FIG.
FIG. 5 is a side view showing another embodiment of the feeding device.
FIG. 6 is a side view showing another embodiment of the advance / retreat operation device.
FIG. 7 is a side view showing another embodiment of the advance / retreat operation device.
[Explanation of symbols]
1 Advance and retreat operation device (lift truck)
2 Machine stand 2a Prop 2k Running wheel (caster)
3 Restriction member 5 Chain (band)
5a Actuator 6 Feeding device 7 Lift platform (actuating member)
7b Guide tube (support guide member)
7c Telescopic cover (cover body)
8 Feeding case 9 Drive sprocket (drive wheel)
10 Driven sprocket (idling wheel)
11 Battery 80, 81 Feeding case M Motor

Claims (3)

A belt body (5) having a refraction-preventing regulating member (3) is provided on the machine base (2) side so as to be able to advance and retreat, and an operating member (7) is formed on the head of the belt body (5). In the forward / backward movement device, the machine base (2) is configured to guide and support the operation member (7) on a column (2a) standing on one side of the machine base (2) and to secure a space above. ) to extend to one side along the band member (5) so that the end portion side is erected I along the strut (2a) direction capable storing and feeding, is housed along the posts (2a) The other belt body (5) to be paired with the belt body (5) is provided, and the other belt body (5) is detoured between the machine base (2) and the actuating member (7). An advancing / retreating operation device for an operating member that can be accommodated . The actuating member (7) is formed as a lifting platform that covers the upper side of the machine base (2), and a traveling wheel (2k) is provided on the machine base (2) side to constitute the lift carriage (1). The advance / retreat operation device for an operation member according to Item 1. The advancing / retreating operation device for an operating member according to claim 1 or 2, wherein the outer periphery of the machine base (2) and the outer periphery of the lifting base (7) are connected by a cover body (7c) that can be expanded and contracted .

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