JPH028876B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a remote control pole. More specifically, it is a remote-controlled device that has an acting part such as a sprayer, pruning shears, or window wiper at its tip, and can operate the acting part from the hand via a pulling force transmission means such as a wire. It relates to the structure of poles used in equipment.

[Conventional technology]

Retrieving objects from high places that are harder to reach than before,
Various types of magic hands are used to pick up objects that have fallen on the tracks from the platform. Furthermore, pruning shears are known in which one blade has a long handle and the other blade handle can be remotely controlled via a wire or rod for cutting tree branches at high places.

[Problems to be Solved by the Invention] The poles used in the conventional remote-controlled instruments house internally control force transmitting means such as control cables and wires, so they all have a constant length. cannot be adjusted. There is also a retractable pantograph magic hand.
The clamp claw at the tip grips the object when it is extended and releases it when it is retracted, so the effective length cannot be adjusted.

An object of the present invention is to provide a structure of a remote control pole that is equipped with a mechanism for substantially adjusting the operating distance, which is not found in the conventional remote control instruments.

[Means for solving problems]

The present invention includes a telescopic cylindrical pole consisting of a first pole and a second pole that are fitted together so as to be slidable relative to each other in the axial direction, and the relative movement of the first pole and the second pole is locked. a locking means for transmitting the pulling operation force, which is inserted from the free end of the first pole to the free end of the second pole and is separated in the middle; A linear rigid member connected to the first pole side is connected to the second pole side of the transmission means, and grips the rigid member when the transmission means on the second pole side is pulled; It is characterized by a chuck mechanism that releases when the device returns to its original position.

[Effect]

When the transmission means on the second pole side is not pulled, the chuck mechanism is also in a fixed position and does not grip the linear rigid member.

Therefore, in this state, the locking means can be loosened to allow the first and second poles to slide freely, in which case the rigid member moves together with the first pole and the chuck mechanism moves together with the second pole.

After adjusting the entire length of the pole to a desired length, the locking means is locked to integrate the first pole and the second pole.

In that state, if you pull the transmission means on the second pole side,
A chuck mechanism grips the rigid member at that location.
In this state, the transmission means on the first pole side and the transmission means on the second pole side are coupled together via the rigid member and the chuck mechanism, so by further pulling the transmission means on the second pole side, the transmission means on the second pole side The transmission means on the 1st pole side can be operated.

Each time the transmission means on the second pole side is returned to its original position, the chuck mechanism releases the rigid member, but since the positional relationship between the first and second poles does not change due to the locking means, the transmission means on the second pole side is returned to its original position. When pulling the transmission means, the same portion of the rigid member is gripped. Therefore, unless the locking means is loosened, the respective transmission means on the first pole side and the second pole side perform the same function as if they were combined into one.

〔Example〕

Next, the structure of the present invention will be explained with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing an embodiment of the structure of the present invention, FIGS. 2 and 3 are an enlarged sectional view and a perspective view of the main part of the chuck shown in FIG. 1, respectively, and FIG. 4 is the same as that shown in FIG. 5 is a sectional view taken along the line -- in FIG. 4, FIG. 6 is a vertical sectional view showing other embodiments of the lock mechanism according to the present invention, and FIGS. 7 and 8- FIG. 10 is a partially cutaway front view and a perspective view, respectively, showing an example of a remote control device having the structure of the present invention.

The pole P shown in FIG. 1 is composed of a first pole 1 and a second pole 2 that are fitted telescopically, and the pole P as a whole is extendable and retractable.
Note that the first pawl 1 and the second pawl 2 may be able to rotate relatively freely, and for example, the guide groove and the protrusion must be arranged so that they do not rotate or rotate within a certain angle. It may be limited by fitting.

A locking means 3 is provided at the connecting portion between the first pole 1 and the second pole 2 to lock the relative movement of the two after adjusting the expansion and contraction (and further adjusting the rotation if necessary). .

As shown in detail in FIGS. 4 and 5, the locking means 3 includes a cylindrical base 4 fitted to the tip of the second pole 2 and a cylindrical base 4 extending axially from one end of the base 4.
It is composed of a main body 6 made of two tongues 5, and a nut-shaped ring member 7 fitted around the outer periphery of the tongues 5. As shown in FIG. 5, each tongue piece 5 is a cylindrical member separated by a slit 5a and has an arc-shaped cross section.The inner circumferential surface 5b is circular and concentric with the base 4, but the outer circumferential surface 8 is It changes gradually in the radial direction. A cam surface 9 that gradually changes in the radial direction is also formed on the inner surface of the ring member 7 in correspondence with the outer peripheral surface 8 of the tongue piece 5.

Therefore, the ring member 7 is moved in the direction of arrow A in FIG.
When the tongue piece 5 is rotated, the tongue piece 5 bends inward and firmly grips the first pole 1 inserted therein with its inner circumferential surface 5b. Also, in the direction of arrow B, the ring member 7
When the tongue piece 5 is rotated, the tongue piece 5 returns to its original state due to its own elasticity, so that the grip is released.

Therefore, with the ring member 7 turned in the direction of arrow B, adjust the first and second poles 1 and 2 to appropriate lengths, and in this state, turn the ring member 7 in the direction of arrow A to lock them. Accordingly, the length and relative angle of the pole P can be adjusted as desired.

Note that 7a in FIG. 4 is a stepped portion 7b at the tip of the tongue piece 5 to prevent the ring member 7 from coming off once set.
7c is a tapered surface provided on the ring member 7 to facilitate insertion of the locking portion 7a.

A wire is used inside the pole P in Figure 1 as a means of transmitting the pulling operation, but as the pole expands and contracts, the length of the wire becomes insufficient or too long, so the length of the wire must also be adjusted. There is a need.

In the structure shown in Figure 1, the wire is connected to the upper wire 1.
1 and a lower wire 12, between which a relatively rigid member such as a piano wire 13 and a chuck mechanism 14 capable of gripping the piano wire are interposed. Thereby, the upper wire 11 and the lower wire 12 are connected only when necessary, thus meeting the above-mentioned requirements. Note that the lower end of the lower wire 12 is connected to a grip lever 15 that is pivotally supported at the lower end of the second pole 2.

The chuck mechanism 14 includes a pipe 16 arranged concentrically inside the second pole 2, and a coil spring (hereinafter referred to as a spring) 18 held by a stepped portion 19 arranged inside the pipe. The chuck 20 is always urged upward by the chuck 20.

The chuck 20 is, for example, a case 2 which is biased upwardly by the spring 18 as shown in FIG.
1, a pair of collets 22 accommodated therein so as to be freely slidable in the axial direction, a wedge member 23 provided under the collet, and a coil spring that is an internal spring for constantly biasing the wedge member upward. (hereinafter referred to as an internal spring) 24. As shown in FIG. 3, the outer side of the collet 22 has a conical tapered surface 25, which fits into a tapered surface 26 on the inner circumference of the case 21. As shown in FIG. A stopper 27 is provided at the upper end of the pipe 16, facing the tip of the collet 22.

In FIG. 2, when the case 21 is pushed upward by the action of the spring 18, the tip of the collet 22 is pushed into the inside of the case 21 by the lower surface 28 of the stopper 27 at the upper end of the pipe 16. Therefore, since the taper surface 25 of the collet 22 and the taper surface 26 of the case 21 do not come into contact with each other, the collet 22
The force trying to close the collet 22 is relaxed, and the wedge member 23, which is pushed upward by the internal spring 24, acts to open the collet 22.

When the case 21 is pulled downward by the lower wire 12, the collet 22 separates from the stopper 27, so the tip of the collet 22 protrudes above the case 21, and the tapered surfaces 25 and 26 fit together. This closes the pair of collects 22.

Therefore, in a normal state, the collet 22 is open, so the piano wire 13 passing through the collet can freely slide inside the chuck 20, thereby allowing the first pole 1 and the second pole 2 to expand and contract. can.

Only when the grip lever 15 is pulled, the chuck 20 grabs the piano wire 13 and pulls it down while resisting the biasing force of the spring 18, making it possible to remotely control an operating part such as pruning shears via the upper wire 11. can. When the grip lever 15 is released, the chuck 20 returns upward by the urging force of the spring 18, and at that position the chuck 20 opens and releases the piano wire 13.

Note that the structure of the chuck 20 is not limited to that shown in FIG. 2, and any mechanism may be employed as long as it performs the above function.

For example, the chuck mechanism shown in FIG. 6 grips the piano wire 13 by about two to four collects 32 connected by hinges 31 near the lower end.

A ring-shaped spring 3 is installed near the upper end of the collet 32.
3 is fitted, so that the collet 32 is constantly trying to close.

The tip of the collet 32 has a V-shaped tapered surface 34.
is formed and is forcibly opened when the collet 32 comes into contact with a V-shaped protrusion 35 formed on the inner surface of the stopper 27 provided at the upper end of the pipe 16.

Furthermore, on the inner surface of the collet 32, there is a groove 3 for inserting the piano wire 13, similar to that shown in FIG.
6 is formed as one hole as a whole. The inner surface of the groove 36 has a threaded or annular uneven surface so as to firmly grip the piano wire 13.

In this case, when the operating side lower wire 12 fixed to the lower end of the collet 32 is pulled in the direction of arrow C, the collet 32 separates from the stopper 27 and is closed by the ring-shaped spring 33, holding the piano wire 13 firmly. grasp.

When the pulling force of the lower wire 12 is loosened, the collector 3
2 is raised in the direction of arrow D by the spring 37, and the grip is released by the stopper 27 again.

Paul's structure, constructed as described above, is
As shown in Figures 1 to 10, it can be used to remotely control various operating parts.

Figure 7 shows a spray can 42 at the top of the first pole 1.
A holder 43 is provided to hold the spray can 4 when the upper wire 11 is pulled in the direction of arrow S.
A lever 45 and the like are provided so as to push the second push button 44.

The second pole 2 and grip lever 15 in FIG.
Wires 11, 12, etc. are substantially the same as those shown in FIG.

This product is used for spraying insecticides on trees of various heights, spraying detergent on tall windows, and applying paint to high walls and ceilings. In addition to spraying in high places, it can also be used to spray objects that are generally difficult to reach, such as by projecting horizontally forward or spraying on the inner walls of deep holes.

In FIG. 7, 4b is a lower holder 46 that is movable in the height direction so as to hold spray cans 42 of various sizes. The same structure as the locking means 3 shown is employed.

FIG. 8 shows a high-altitude window cleaning wire utilizing the structure of the present invention. This device uses three poles, a tip pole 51, an intermediate pole 52, and a base pole 53, which are fitted in order in a telescopic manner, and the telescopic structure of the present invention is provided at two locations in series, so to speak. be.

A wiper (or scraper) 56, which has a rubber blade 55 inserted into a frame 54 made of synthetic resin or metal, is attached to the tip of the tip pole 51 so as to be rotatable around a pin 57. biased in the direction. One end of a wire 59 serving as a pulling operation means is attached to the frame 54, and the other end of the wire 59 is connected to a lever near the grip 60 of the proximal pole 53 via two chuck mechanisms (not shown) in sequence. It is connected to the handle 61.

This has the advantage that by operating the lever handle 61 in the direction of the arrow FG, the wiper 56 can be tilted in the same direction, allowing you to freely wipe narrow windows such as slit windows and the corners of windows. There is. Furthermore, since the length of the pole can be adjusted freely, it is particularly convenient for cleaning fixture windows on the second floor from the outside or from windows on the second floor that can be opened and closed.

Figure 9 shows an application of almost the same remote control mechanism as the instrument in Figure 8 to pruning shears;
By opening and closing 5 and the handle lever 66 with both hands, the fixed blade 67 and the movable blade 68 at the tip can be opened and closed, thereby making it possible to cut off tree branches and the like.

FIG. 10 shows an application of the structure of the present invention to a so-called magic hand, in which two systems of operating wires are provided in parallel inside a first pole 71 and a second pole 72 that are fitted in a telescopic manner. Each is inserted through a chuck mechanism.

The first system of wires 73 is connected to an arm 75 of a holder 74 rotatably provided at the upper end of the first pole 71.
and an operating lever 76 provided near the grip 75 of the second pawl 72.

Furthermore, a link 77 and a guide rod 78 are attached to the upper end of the holder 74 so that the left and right opening angles are the same.
a pair of claw members 7 whose movement is restricted by
9 is provided around the pin 80 so as to be freely openable and closable, and a second wire 82 whose one end is connected to the connecting portion 81 of the link 77 passes through the rotation support portion 83 of the holder 74 and connects to the first pole 71. The grip lever 84 is guided inward and connected to a grip lever 84 that is different from the operating lever 76 .

This device controls the inclination of the holder 74 in the direction of arrows L-M by operating the operating lever 76 in the direction of arrows J-K, and opens and closes the pair of claw members 79 by grasping and releasing the grip lever 84. be able to.

Note that the second system wire 82 is guided by a control cable conduit 85 that connects the vicinity of the upper end of the holder 74 and the rotation support part 83, so the rotation angle of the holder 74 is determined by the opening angle of the claw member 79. does not affect.

As mentioned above, the structure of the pole of the present invention is used for various purposes, and therefore, it is preferable to use appropriate components according to each purpose.

The first and second poles in the present invention are usually manufactured from aluminum pipes, but are not limited thereto; for example, steel pipes,
Various materials such as resin pipes can be used depending on the purpose.

Furthermore, in the locking mechanism shown in FIGS. 4 and 5, locking is performed by the frictional force between the surface of the first pawl 1 and the inner peripheral surface of the tongue piece 5, but the locking means in the present invention is limited to such a mechanism. However, various mechanisms can be adopted. For example, if the operating force applied to the pulling operating force transmission means is large (for example, 50 kg or more), a plurality of annular grooves may be formed on the surface of the first pole 1, or a plurality of through holes arranged in the axial direction may be formed on the surface of the first pole 1. A hole or a non-penetrating hole is formed, and a protrusion or protrusion that engages with the annular groove is formed on the inner surface of the tongue piece 5 to engage the two and sufficiently support the reaction force of the operating force. It is preferable to do so. In the case of engagement between the hole or the hole and the protrusion, it is preferable to connect the first pawl and the locking means through a rotation preventing means. The engagement between the ring member 7 and the tongue piece 5 shown in FIG. 5 may also be tightly tightened by screwing.

Furthermore, although piano wire is used as the linear rigid member in the embodiments shown in FIG. Any member can be used as long as it is a certain member. In the case of wire rods with smooth surfaces, such as piano wire, various patterns are engraved on the surface by knurling, etc.
The frictional force with the chuck or the like may be increased. In that case, it is preferable to form a corresponding pattern on the inner surface of the chuck.

Furthermore, the means for transmitting the operating force in the present invention may include wires made of ordinary twisted steel wires or single steel wires.
Synthetic resin strands, ropes made of various fibers,
Alternatively, various materials such as a metal rod may be used.

〔Effect of the invention〕

By utilizing the structure of the remote control pole of the present invention, various remote control instruments can be changed to types that can be expanded and contracted without changing their basic configurations. Also, using the structure of the present invention,
Furthermore, a remote control device with new uses can be realized.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the structure of the present invention, FIGS. 2 and 3 are an enlarged sectional view and a perspective view of the main part of the chuck shown in FIG. 1, respectively, and FIG. 4 is the same as that shown in FIG. 5 is a sectional view taken along the line -- in FIG. 4, FIG. 6 is a vertical sectional view showing other embodiments of the chuck structure according to the present invention, and FIGS. 7 and 8- FIG. 10 is a partially cutaway front view and a perspective view, respectively, showing an example of a remote control device having the structure of the present invention. (Main symbols on the drawing) P: Paul, 1,71:
1st pole, 2, 72: 2nd pole, 3: locking means, 11: upper wire, 12: lower wire, 1
3: piano wire, 14: chuck mechanism, 51: tip pole, 52: intermediate pole, 53: proximal pole,
59, 73, 82: Wire.

Claims (1)

[Scope of Claims] 1. A first member fitted so as to be relatively slidable in the axial direction.
A telescopic cylindrical pole consisting of a pole and a second pole, a locking means for locking the relative movement of the first pole and the second pole, and a free end of the second pole from the free end of the first pole. a pulling operation force transmission means that is inserted to the end and is separated in the middle; a linear rigid member that is connected to the first pole side of the divided transmission means; A structure of a remote control pole comprising a chuck mechanism connected to a second pole side, gripping the rigid member when the transmission means on the second pole side is pulled, and releasing it when the transmission means on the second pole side is returned. 2. The chuck mechanism includes: a stopper fixed within the second pole and having a hole through which the rigid member is inserted; a chuck arranged around the rigid member adjacent to the stopper; and a spring for biasing the chuck, and is configured such that the chuck does not grip the rigid member when it is in contact with the stopper, but grips it when it is separated from the stopper. Structure described in section. 3. A case in which the chuck has a tapered hole at its tip that gradually becomes narrower toward the outside;
a set of a plurality of collects housed in the case and having an outer circumferential surface that fits into the tapered hole; 3. A structure according to claim 2, comprising an internal spring contained therein.