JP2016213592A - Rotary device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary device capable of ensuring a lifting passage of construction workers, in a rotary device using a rotary ring surrounding the whole circumference of a support.SOLUTION: A rotary device includes an arm 16 having one end coupled to a movable rotary section 15 in the center of rotation, located on the side of the body of a support 1 and extending sideways, and the other end provided with an attachment part of an antenna 17, or the like. The arm 16 is configured so that, at a position rotated to a predetermined angle, the other end is located on the opposite side of the one side across the peripheral part of the support 1, and does not occupy a part of the periphery of the body of the support 1.SELECTED DRAWING: Figure 1

Description

The present invention relates to a rotating device.

A rotation device that rotates a unidirectional device such as a short wave band Yagi antenna is known.

When one Yagi antenna is mounted on the top of the tower so that it can rotate horizontally, and the other Yagi antenna is installed on the same tower so that it can rotate in the horizontal direction at different heights, the antennas installed close to each other The original performance may not be exhibited due to interference.

If the long mast protrudes from the top of the tower and the antennas can be installed sufficiently apart from each other, the interference may be reduced, but a long and strong mast is required. There is a problem. The tower itself can be rotated, but the equipment is very big.

A rotating device is known that is installed at an intermediate height position of the tower. For example, in Patent Document 1, as shown in FIG. 22, an annular plate containing a tower is rotated around the tower.

JP-T 58-50093

However, in the above-described conventional apparatus, the annular plate always surrounds the tower and occupies the outside of the tower. Therefore, the passage of the construction worker is obstructed, the ladder cannot be installed continuously, and the elevating convenience is not good. Grease and the like adhering to the plate may contaminate work clothes. Also, the rotation may not be smooth due to the vertical installation during assembly or deformation distortion after installation.

It is an object of the present invention to provide a rotating device that can be installed at an intermediate position in the longitudinal direction of a support, can be smoothly rotated in a wide angle range, and can improve the convenience of passing people.

That is, the rotating device according to the invention of the present application is
1) Installed on the side of the support, on one side of the side, in a direction intersecting the longitudinal direction of the support, between one position and another position different from the one position. The center of rotation is provided so as to be movable.
2) The above 1), comprising an arm portion, one end of the arm portion being coupled to the rotation center, and the other end of the arm portion being connected to a directional device.
It is characterized by that.

ADVANTAGE OF THE INVENTION According to this invention, a directional apparatus can be smoothly rotated in a wide angle range. And since the member which always cross | intersects the side part of a support body can be eliminated, the continuous ladder can also be installed and the raising / lowering convenience of a person can be improved.

The movement locus of the center of rotation may be a straight line, a curved line including an arc, or a combination thereof. The support here may be selected from, but not limited to, vertical, steel freestanding or branch towers, crank-up towers, steel pipe columns (iron pipes, panza masts, etc.), concrete columns, wooden columns, chimneys, etc. . Moreover, a horizontal thing may be sufficient like the example of the horizontal stack boom of a stack Yagi antenna.

Examples of the directional device of the present invention include various unidirectional antennas such as the Yagi type, as well as devices used in one direction such as a video camera, a sound collecting microphone, a searchlight, and a windmill generator. However, the present invention is not limited to these, and any device that can be preferably used in a certain direction may be used, such as an advertising sign board displaying different messages on the front and back sides, and those having directivity characteristics in both the front and rear directions. Good.

It is a side view which shows an example of the tower which installed the rotating apparatus of Example 1 of this invention. FIG. 2A is a diagram for explaining the operation of the rotating device of FIG. 1, FIG. 2A shows a state in which the Yagi antenna is directed in one direction, and FIG. 2B shows a state in which the Yagi antenna faces in the opposite direction. It is the top view which showed Example 2 of this invention. It is the perspective view which showed Example 3 of this invention. FIG. 5A is a plan view and FIG. 5B is a side view showing a rotating device according to a fourth embodiment of the present invention. It is operation | movement explanatory drawing of the rotating apparatus of Example 5 of this invention. It is operation | movement explanatory drawing of the rotating apparatus of Example 6 of this invention. It is operation | movement explanatory drawing of the rotating apparatus of Example 7 of this invention.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The tower 1 in FIG. 1 is an example of a support, and shows a location that becomes an intermediate height position, and the top and bottom thereof are omitted. A so-called triangular tower that employs an angular lattice structure or the like is well-known, and is shown by a dashed line and detailed description thereof is omitted.

Two guides 10 and 11 are attached to one side surface of the tower 1 so as to be parallel to each other with a predetermined interval in the vertical direction in the horizontal direction which is a direction intersecting the height direction. ing. Each of the guides 10 and 11 is incorporated with a shaft having a spiral portion (not shown) inside, and is rotated by a motor (not shown) incorporated in the power boxes 10a and 11a to become a so-called linear guide, and the upper and lower portions 2 meshed with the shaft. The two blocks 12a and 12b move horizontally at the same speed in the same direction, that is, in the direction of the arrow L or R. A bearing 13 is attached to the upper block 12a, and a motor 14 as a rotation center is attached to the lower block 12b, and supports the mast 15 so that it can rotate one round (360 degrees). An arm 16 as an arm portion extends in one horizontal direction at an intermediate height position of the mast 15, and an antenna 17 (4-element Yagi) as a directional device is attached to the tip portion.

The motor 14 is also called a rotator, and the output shaft does not rotate due to the brake when not energized, and rotates at a low speed by generating a large shaft torque by the reduction gear when energizing the built-in prime mover. You can stop at any angle in the range. The time required for one rotation is about 90 seconds, a variable resistor that moves in conjunction with the rotation is provided inside, and the angular position is read at a remote location by a meter (not shown). One rotation of the output shaft of the motor 14 coincides with the movement from one end of the movable range of the guides 10 and 11 of the block 12 to the other end, that is, the one-way operation.

With reference to FIG. 2, operation | movement of the rotating apparatus of a present Example is demonstrated. In addition, the guide 10 and the bearing 13 were abbreviate | omitted for description. FIG. 2A shows a state in which the motor 14 is at a position (one position) corresponding to FIG. 1, and the antenna 17 faces in the 3 o'clock direction in the figure. The block 12b is substantially at the center of the movable range of the guide 11.

When the block 12b is at the right end of the figure (an example of another position with respect to one position) as shown in FIG. 2b, the output shaft of the motor 14 is rotated 180 degrees from the position of FIG. 2a. The end of the arm 16 is on the side opposite to the tower 1 and the antenna 17 is oriented in the direction of 9 o'clock in the figure. In this way, the antenna 17 rotates half a counterclockwise direction.

The case where the antenna 17 is located in the middle of the antenna direction of the solid line in FIGS. 2a and 2b is indicated by a broken line in FIG. 2b. The antenna rotates from right to top in the figure and from top to left without hitting the tower 1. By moving from the state of FIG. 2a in the opposite direction to the movement to FIG. 2b, it rotates 180 degrees in the reverse direction. As described above, the antenna 17 can be directed in any direction in all directions.

According to the present embodiment, the device is configured to be small as a whole, and the rotating device does not have a portion that is always occupied or traversed over the entire circumference of the side of the tower 1. It is easy to pass and ladders can be installed continuously on the side. Moreover, since there is no drive mechanism part on one side of the tower 1, it is not soiled by grease or the like.

Next, Example 2 will be described. The tower 1 is a panther mast having a substantially circular cross section. In the following description of the embodiments, the same reference numerals are given to substantially the same components as those in the first embodiment, and duplicate descriptions are omitted.

In the rotating device shown in FIG. 3, a pinion gear 27 is attached to the output shaft of the motor 14 and is assembled on a block 22 that can be moved smoothly and freely. In addition, the rack gear 28 and the pinion gear 27 mesh with each other, and the rotation of the output shaft of the motor 14 causes the antenna 17 to rotate. At the same time, the motor 14 self-travels on the guide 21 together with the block 22, so Move in the direction. This eliminates the need for a separate power source for horizontal movement and simplifies the configuration.

FIG. 4 shows a third embodiment. A fixed base 33 is installed on the side of the tower 1, and a pair of square cylindrical rails 34 arranged in parallel at a predetermined interval are provided on the fixed base 33. A pair of upper and lower L-shaped guides 36 that hold the rail 34 slidably hold the rail 34 in a U-shape from the upper and lower sides, and a movable base 35 to which the motor 14 is attached has a length of the rail 34. Mounted so that it can move smoothly in any direction.

A drum 37 and an arm 16 are attached to the output shaft 14 a of the motor 14. Both ends of a wire rope 39 spirally wound around the drum 37 are fixed to posts 38, 38 on each end side of the rail 34, respectively. The post 38, 38 is moved away from each other by a position adjusting mechanism (not shown) to apply tension to the wire rope 39, and the movable base 35 is stopped on the rail 34 together with the stopped motor 14.

When the output shaft 14a is rotated in one direction, the drum 37 winds up one side of the wire rope 39 and feeds out the other side, and the motor 14 moves by itself to one side. The output shaft 14a, which is the center of rotation, is rotated by one motor 14 and moves along the rail 34.

FIG. 5 shows a fourth embodiment of the present invention. Pulleys 41 and 42 are fixed to the output shaft of the motor 14 so as to be stacked.

The rotation of the pulley 41 is transmitted to the pulley 43 by the belt 51, and the rotation of the pulley 42 is transmitted to the pulley 44 by the belt 52. Around the common axis X, the pulleys 43 and 44 rotate separately. Only pulley 44 has a diameter twice that of the other pulleys. The two pulleys 43 and 45 rotate together.

A rod 54 that pivots around the axis X as the pulley 44 rotates is attached to the base 49 that supports the axis X, and a pulley 46 attached to the tip of the rod 54 rotates around the axis Y that is the center of rotation. The rotation of 45 is transmitted to the pulley 46 by the belt 53.

One end of the arm 16 is attached to the pulley 46, and the antenna 17 is attached to the other end, and the arm 16 is rotated by the rotation of the motor 14. At this time, the rod 54 turns at an angle that is half the rotation angle of the pulley 42. That is, when the motor 14 rotates 180 degrees in one direction, the pulley 44 and the rod 54 rotate 90 degrees, all other rotations 180 degrees, and the antenna 17 also rotates 180 degrees.

When the motor 14 rotates in the opposite direction, the pulley 44 and the rod 54 rotate 90 degrees, all other rotations 180 degrees, and the antenna 17 180 degrees, both rotating and turning in the opposite direction. That is, the antenna 17 can be directed in any direction in all directions while avoiding so as to go around the tower 1. A combination of a sprocket and a chain may be used instead of the combination of a pulley and a belt.

In the fourth embodiment, since all the movable parts are based on the shaft rotation structure, there is no guide as in the other embodiments, the structure is not derailed, and the catch is less likely to occur. By using an appropriate bearing, a sturdy and lightly rotatable structure can be constructed relatively easily.

In each of the above embodiments, an example of rotating 360 degrees has been described. However, if necessary, the horizontal movement distance is changed to select less than 360 degrees or more than 360 degrees, for example, 405 degrees (one rotation and 45 degrees). it can.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The boom of the antenna 17 indicated by an arrow for the purpose of explanation through the following embodiments is directly attached to the output shaft 14a of the motor 14 that is the rotation center, and therefore there is no member like the arm 16 described above. The motor 14 is moved linearly on the guide rail GR indicated by the alternate long and short dash line between one position A1 indicated by the alternate long and short dash line and the other position A2. At positions A1 and A2, the antenna 17 points to the 9 o'clock and 3 o'clock directions of the watch, respectively.

If the center of rotation shown by a broken line for comparison does not move from the position A0, it can only rotate in the direction of 2 o'clock from 10 o'clock to 12 o'clock, that is, the rotation angle θ0, so the position range from A1 to A2 , The angle at which the Yagi antenna 17 is directed increases by 2 o'clock. Furthermore, if it is moved in the range of A3 to A4, it becomes 8 o'clock at the position of A3 and 4 o'clock at the position of A4, so that the antenna 17 can be rotated to a wider angle.

FIG. 7 is a plan view for explaining the operation of the sixth embodiment of the present invention. As in the fifth embodiment, the boom of the antenna 17 is directly attached to the output shaft 14a, the base (not shown) changes the moving direction at the intersection B0 of the guide rails GR1 and GR2, and the plan view shown by the one-dot chain line is omitted. The center of rotation of the V-shaped guide rail GR is parallel to one surface TL on the side surface of the tower 1 (TL, TM, TN), from the position B0 to the positions B1, B3, B5, and parallel to the other surface TM. The center of rotation moves horizontally from position B0 to positions B2, B4, and B6.

As described above, the center of rotation moves while maintaining the proximity to the tower 1, so that the antenna 17 can be rotated at a wide angle. That is, the antenna 17 is at 6 o'clock, 9 o'clock, 11 o'clock, 12 o'clock, 2 o'clock, 4 o'clock of the clock at positions B5, B3, B1, B0, B2, and B4, respectively, and again points to 6 o'clock at position B6 ( 1 rotation).

FIG. 8 is a plan view for explaining the operation of the seventh embodiment of the present invention. A major feature in contrast to the sixth embodiment is that the monorail guide rail GR indicated by the alternate long and short dash line has a substantially semicircular arc shape in plan view drawn with a constant radius R0 from the virtual center C0. The motor 14 is installed on a base (not shown) combined so as to straddle, and the output shaft 14a, which is the center of rotation, moves along the guide rail GR smoothly in a circular arc around the tower 1. .

The antenna 17 points at 6 o'clock, 8 o'clock, 10 o'clock, 12 o'clock, 12 o'clock, 2 o'clock and 4 o'clock at positions C1, C2, C3, C4, C5 and C6, respectively, and again at 6 o'clock at position C7 ( 1 rotation). The direction of the antenna 17 can be read at a remote location by the sum of the turning angle of the base and the rotation angle of the output shaft 14a.

When power sources at the center of rotation are prepared for each of movement and rotation, a plurality of power sources may be linked as in the first embodiment, or a predetermined angle of rotation and a predetermined amount of power may be linked. The movement may be individual. In addition, a control circuit constituted by a timer and a relay may be incorporated to automatically switch between rotation, movement, and rotation again, or individual operations may be performed sequentially by manual operation (manual operation). The power source is not limited to electric, and a chain block, a manual winding winch or the like can also be used.

Further, if the antenna 17 rotated by the motor 14 and other antennas such as the top of the tower 1 are a set of a plurality of beam antennas of the same specification arranged at a predetermined interval, they always have the same direction. By rotating at the same speed and always operating in parallel, high front gain and sharp horizontal and vertical directivity characteristics can be obtained without interruption in all directions.

It can be used as a unidirectional antenna device installed on the side of the support or as a rotating device that changes the orientation of a surveillance camera or the like.

DESCRIPTION OF SYMBOLS 1 Support body 14,14a, Y Rotation center 16 Arm part 17 Directional apparatus

Claims (2)

It is installed on the side of the support and can be moved on one side of the side between one position and another position different from the one position in a direction intersecting the longitudinal direction of the support. Provided with a center of rotation,
A rotating device characterized by that. The rotating device includes an arm portion, one end of the arm portion is coupled to the rotation center, and the other end of the arm portion is connected to a directional device.
The rotating device according to claim 1.

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