KR100404957B1 - Pulley type up-down polygon telescoping masts - Google Patents

Abstract

The third or more tubes t3, t4, t5 of the present invention are attached to the bottom of the tube tn and to the bottom of the fleece 13 and tn-2 tube which attach the tube tn-1 to the top of the tube tn-1. By attaching and attaching as an interlocking wire rope 15 via a fleece 14, the tube tn-1 can be raised by the distance of the tube tn-1 relative to the tube tn-1 during the tube tn-1 lifting operation. The first stage tube divides the laminated tube accommodating chamber 21 and the transmission chamber 22 into which the second stage tube is accommodated by the support plate 23, and the rotational longitudinal axis 32 is formed in the number 31 of the support plate 23. The horizontal drive shafts 36 are respectively provided in the number of shafts of the transmission chamber, and the lifting nut 34 attached to the bottom support plate 33 of the second stage tube t2 is bitten by the lifting screw 35 of the longitudinal shaft 32. And the driven bevel gear 37 at the lower end of the vertical shaft is bitten by the driving bevel gear 38 on the drive shaft 36, and the drive shaft 36 is driven in conjunction with the drive motor 40 or the handle 50.Linear expression polygon is a telescoping mast.

Description

Pulley type polygon telescoping mast {PULLEY TYPE UP-DOWN POLYGON TELESCOPING MASTS}

The present invention relates to a pulley polygonal telescoping mast.

Conventional telescoping masts (main masts) are mainly mobile equipment mounted on a vehicle, so-called lifters or antenna poles, and are mainly equipped with applications such as transmitting / receiving antennas of broadcast relay vehicles, photographing cameras or observation equipment, etc., usually on the top tube. Used to float 5 to 20m high.

Conventional telescoping masts are assembled with 5-9 layers of tubes with a maximum diameter of 70 ~ 200mm and a length of 2m, and are assembled to expand and contract.The elasticity of pneumatic cylinders, hydraulic cylinders, rack gears or coil springs inside The built-in drive device is used to allow the multi-overlapping tube to be deployed in a stretched state or to be retracted to drive an application device mounted on the top so as to rise above ground level.

Conventional pneumatic or hydraulic cylinder drive type telescope mast has a high manufacturing cost, heavy load of the product, frequent problems in the seal packing of the mast drive, and coil spring drive type telescope. Mast was difficult to manufacture due to the complicated structure of the gear and the spring assembly, at the same time, frequent maintenance, and had a short life problem. In addition, the conventional telescope mast device is a structure in which the tube at each end of the mast can be freely rotated by forming a stretchable mast body by overlapping the circular tube, the longitudinal guide jaw and the longitudinal direction of the mast tube to prevent free rotation of the mast end The coupling of the guide jaws and the guide grooves caused severe wear and breakdown, and the improvement was urgently needed. In the Japanese Laid-Open Security Publication No. 64-4007, a two-stage tube was raised and lowered by a lifter in the base tube. The wires fixed at both ends are fixed to the pulleys attached to the upper and lower stages of the two-stage tubes to be moved by the lifter, and the three-stage tubes are fixed to the moving wires to fix the three-stage tubes. It is linked to, but this is not applicable to four or more overlapping tubes, Japanese Not mounting the Hei-replicon on the top of the nested tubes and in No. 1-109118; Securing both ends of the first wire to the winch split in the first tube and the bottom of the second tube; The second wire attaches both ends to the bottom ends of the first tube and the third tube; The third wire provided a mast with both ends attached to the lower ends of the second tube and the fourth tube, which was inconvenient to use.

The present invention is an invention for improving the above problems, overlapping polygonal tube to prevent free rotation, construct a stretchable mast by a combination of fleece and wire, the upper tube is installed on the first end of the be mast tube Driving a second stage tube up or down as a screw lifter, the tubes of the second stage or more providing a new combination of a fleece and a drive wire rope in a mast interlocked with the operation of the tube of the second stage; It is an object to provide a pulley type polygonal telescoping mast with a control unit for detecting the moving distance of the mast to stabilize the stretching operation of the mast, less occurrence of failure, and easy to use.

1 is a perspective view of the contracted state of the mast of the present invention

2 is a conceptual diagram of the operation state of the mast of the present invention

Figure 3 is a conceptual diagram of the contracted state operation of the mast of the present invention

Figure 4 is a cross-sectional view illustrating the mounting state of the fleece and wire of the present invention mast

5 is a cross-sectional configuration of the lifter of the present invention mast

6 is a control circuit diagram of the present invention;

<Description of Drawing Major Symbols>

11, 12: slider support 13, 14: fleece 15: wire rope 23: support plate 30: lifter 32: longitudinal axis 34: nut 35: screw 36: drive shaft 69: remote control

The present invention will be described in detail with reference to the accompanying drawings.

The telescope mast includes: a base tube t1 attached to the vehicle or the floor as a flange; Assembling the tubes installed in the base tube such as the second stage, the third stage, the fourth stage and the top tubes t2, t3, t4, t5; Mounting an application device (A) on top of the top tube (t5); Attaching a lubricity slider support 11 such as Teflon resin to the outer edges of the tubes t2 to t5; Attaching the lubricating slider support 12 to the upper inner edge of the tubes t1 to t4 to assemble the telescope tubes t1 to t5 so as to be telescopically movable; In the base tube t1, a drive device is installed in the base tube t1 to extend and move the tubes t2 to t5 up and down on the base tube t1.

The base tube (t1) and the flexible tube (t2, t3, t4, t5) is composed of a polygonal tube (t), such as square, pentagon or hexagon.

The polygonal tube t of the telescope mast prevents free rotation of the tube ends.

In the embodiment, the present invention is installed in the inner space of the base tube (t1) and the lifter 30 for raising or lowering the second stage tube (t2);

Third or more tubes t3, t4, t5, ...; Flies 13 mounted to the top of the tn tube and the bottom of the tn-1 tube in the second or more tubes;

A wire rope that binds both ends to the bottom of the tn tube and the bottom of the tn + 1 tube in the second or more tube, and simultaneously connects the upper pleat of the tn tube and the bottom of the tn-1 tube to deliver the lift amount of the tn tube to the tn + 1 tube. Construct a stretch mast with 15; The tube tn could be raised by the lifting distance of the tube tn-1 with respect to the tube tn-1 during the raising operation of the tube tn-1.

In order to install the wire rope 15 and the pleats 13 for interlocking the tubes, gap spaces a, b, and c are formed as slider supports 11 and 12 between the tubes. In the embodiment telescope mast with a maximum diameter of 150 mm, the thickness of the pleats installed in the clearance spaces a, b, and c according to the weight of the load applied to the pleats and the wire ropes at each end is 7 mm and 5 mm, respectively. The diameter of the wire rope was 5.5 mm, 3.5 mm, and 1.5 mm.

In order to install the wire rope 15, the support plate 23 and the like, the rope guide hole 19 is installed.

The plies 13 installed in the gap spaces a, b, and c were attached in close contact with the inner wall plane of the polygonal tube.

The lifter is installed between the first end tube and the second end tube to raise or lower the second end tube within the lifter drive distance h.

The lifter may be variously configured as a hydraulic cylinder for driving a second stage tube, a rack gear type lifter, a winch lifter using a wire, and the like.

The lifter of the embodiment of the present invention is a screw type lifter which interlocks the longitudinal axis by the rotational force of the drive shaft and raises or lowers the second stage tube as the screw on the longitudinal axis and the nut bitten by the screw. Screw-type lifter is a safety lifter because operation is prevented from being reversed by the load of telescopic tubes.

As a configuration of the above-described lifter, the first end tube divides the laminated tube accommodating chamber 21 and the transmission chamber 22 into which the second end tube is accommodated by the support plate 23, and the number of axes of the support plate 23 is reduced. The vertical axis 32 is provided with the lifting vertical shaft 32 attached to the rotary vertical shaft 32 at the number of shafts of the transmission chamber, and the lifting nut 34 attached to the support plate 33 at the bottom of the second stage tube t2. ), And the driven bevel gear 37 at the lower end of the longitudinal axis is bitten by the driving bevel gear 38 on the drive shaft 36, and the drive shaft 36 is driven by the drive motor 40 or It is configured to drive in conjunction with the handle (50).

Therefore, when the drive shaft 36 is driven by the handle or the reduction motor, the driving force is transmitted to the longitudinal shaft 32 through the bevel gears 38 and 37 to be driven, and the screw 35 on the longitudinal shaft 32 moves upward of the nut 34. Alternatively, the second stage tube t2 may be raised or lowered by moving downward, and the screw structure between the screw 35 and the nut 34 may be removed even if the driving shaft 36 stops driving at any position. The positional stabilization of the two-stage tube t2 is achieved.

In order to set the lifter driving distance h, switches 16 and 17 such as a micro switch for detecting the tentacle 18 of the second stage tube t2 at both ends of the driving distance h and inverting the state are provided. By installing in the first stage tube t1, the motor control unit 60 monitors the switches 16 and 17 states to drive the motor so that the operator can execute the expansion operation or the contraction operation of the mast in one-touch operation.

That is, when the control unit 60 of the microcomputer 61 detects the signal of the mast operation switch 62, the control unit 60 provides the ON switching signal to the switching unit 63 to drive the motor 40 in the deployment direction of the mast through the driver driver 68. ) And stops driving of the motor by transmitting a driving stop signal of the motor to the switching unit 63 when the micro switch 16 signal at the upper end is detected. Similarly, when the control unit micom 61 detects the contraction operation switch 66 signal of the mast, it supplies an ON switching signal to the switching unit 67 to drive the motor 40 in the contraction direction of the mast, and the micro switch 17 at the bottom thereof. When a signal is detected, the driving stop signal of the motor is transmitted to the switching unit 67 to stop the driving of the motor.

In the control operation of the mast, the switches 62 and 66 may be installed in the remote controller 69 to expand or contract the mast by operating the remote controller.

The reduction motor 40 and the drive handle 50 are used as a drive mechanism of the drive shaft.

The drive motor 40 drives the electric gear 45 on the transmission shaft 44 through the reduction gear 43, and the electric gear 45 operates the handle 41 on the slide shaft 46 extending from the driving shaft. The drive shaft 36 is driven by being connected to the clutch gear 47 which is moved left and right.

Therefore, when the clutch gear 47 is moved to one side on the slide shaft 46 by the operation of the handle 41 and separated from the electric gear 45, the motor 40 is separated from the longitudinal shaft 32 so that the driving handle can be used. When the two gears 45 and 46 are connected, the driving force of the motor 40 is connected to the longitudinal axis 32, and the vertical axis 32 is driven by the forward and reverse driving force of the motor to form the second tube ( t2) can be driven in the up and down directions.

The drive handle 50 used when the clutch gear 47 is disconnected is connected to the input shaft 51 so as to drive the gear 53 attached to the drive gear 52 and the extension of the drive shaft 36. In this configuration, the motor 40 can be conveniently used when there is no driving power or when contracting the deployed telesk mast with less driving load.

Referring to the driving operation of the present invention configured as described above is as follows.

The first stage tube is fixed to the floor to install the mast, power is applied to the motor and the controller, and when the operator presses the floating switch 62, the microcomputer detects this and switches the motor through the switching unit 63 and the driving driver 68. Drive.

The driving force of the motor rotates the drive shaft 36 through the reduction gear 43, the electric gear 45, and the clutch gear 47. The drive shaft 36 rotates the screw 35 on the longitudinal axis 32 via the bevel gears 38 and 37, which in turn causes the second end tube t2 to rise with the nut 34. When the switch 16 detects the tentacles 18 and causes a state change by the floating motion of the second stage tube, the microcomputer 61 detects this and stops the driving of the motor.

As described above, when the second stage tube t2 floats the driving distance h, the tubes t3, t4 and t5 are interlocked with the second stage tube, respectively, so that the mast floats the application device A high above the ground.

In the stretching operation of the mast, the tubes at each end are supported by the lubricious slider supports 11 and 12 and stretched correctly.

In the floating operation of the third stage expansion tube t3, when the floating operation of the second stage tube t2 pulls up one end of the wire rope, the other end of the wire rope supported by the pleats 14 and 13 is the upper portion of the second stage tube t2. In the third stage tube is to be pulled up, and the fourth and fifth stage tube t4, t5 is also linked to this operation.

Now when the operator presses the down switch 66, the control unit drives the motor 40 in the opposite direction from the above until the tentacle 18 reverses the state of the switch 17, thereby contracting the mast to safely lower the application. will be.

In the contracting operation, the clutch gear 47 may be detached from the electric gear 45 and the driving shaft 36 may be rotated by operating the handle 50 to lower the application device on the top of the mast.

The steering wheel operation rotates the drive shaft 36 through the input shaft 51, the drive gear 52, and the gear 53.

As described above, the present invention prevents free rotation of each end of the telescope mast by overlapping polygonal tubes such as hexagons or squares to form a telescopic mast, and lifts the second stage tube as a screw lifter installed at the first end of the mast tube. Or it is driven downward, and the tubes of the second or more stages are connected to the operation of the tube of the second stage by connecting the pulley and the driving wire rope concealed at each end of the mast to simplify the driving mechanism of each end of the mast tube. The new combination of the fleece and drive wire rope and the control unit to detect the moving distance of the mast are installed to simplify and stabilize the expansion and contraction of the mast, thereby providing a trouble-free polygonal telescoping mast with less trouble.

Claims (3)

Assembling the expansion tube in multiple stages superimposed on the base tube, and equipped with a lifter in the base tube, driving up or down the second stage tube as a lifter, driving up or down by interlocking three or more stage tubes to the second stage tube, In the combination of the tube consisting of a combination of fleece and wire, A fleece mounted to the upper part of the tn tube and the bottom of the tn-1 tube, respectively, for the tube tn having the second or more stages; a wire rope that binds both ends to the bottom of the tn tube and the bottom of the tn + 1 tube, and at the same time is recommended to the top of the tn tube fleece and the bottom of the tn-1 tube fleece to transfer the lift amount of the tn tube to the tn + 1 tube; Tentacles installed in a second-stage tube for setting the lifter driving distance; A switch provided in the first stage tube to detect the tentacles at both ends of the driving distance; A pulley-type polygonal telescoping mast composed of a motor control unit for driving a telescopic driving motor with reference to a state of the switch. 2. The apparatus of claim 1, further comprising: partitioning the second stage accommodation chamber and the transmission chamber in the first stage tube with a support plate; Installing a rotating longitudinal axis comprising a lifting screw on the bearing on the support plate; The drive shaft is rolled up to the shaft of the transmission chamber, the lifting nut is installed on the bottom support plate of the second stage tube, the lifting nut is coupled to the lifting screw, the bevel gear at the lower end of the longitudinal shaft is interlocked with the bevel gear on the driving shaft, and the driving shaft is driven. The drive motor is driven in conjunction with a motor or a handle, the drive motor to drive the electric gear on the transmission shaft through the reduction gear, the electric gear is connected to the clutch gear moved left and right according to the handle operation on the slide shaft extending from the drive shaft Pulley polygonal telescoping mast configured to drive a drive shaft. 3. The pulley polygonal telescoping mast according to claim 2, wherein the handle used when the clutch gear is disconnected is configured to connect to the input shaft to drive the drive gear and the reduction gear attached to the drive shaft extension.