JP2008024501A - Noncontact point type cord and hose reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for reducing cost, having a simple structure, having a long service life, easy in operation, and capable of being handled by anybody without being restricted by the length of a cord in a nonelectric contactor, since the cord on a drum and a power source side must be connected by an electric contactor, when using a cord reel while carrying an electric current. <P>SOLUTION: A power supply cord and an extension cord on the drum are directly connected, and the extension cord is wound on the drum by turning the drum up to an allowable range without impairing the electric-mechanical function of the power supply cord. After hooking its cord on a pipe on the drum and a groove so as not to return, the drum is wound by being reversely rotated up to the allowable range of the power supply cord. The winding length is not restricted by repetition. The cord is wound even if the drum is normally rotated and reversely rotated. When loosening the cord, when pulling the cord, operation is caused in the inverse order of winding, and the cord is automatically loosened. The power supply cord is laterally swung within each allowable range of the power supply cord. This device can be applied even to liquid and gas when replacing the cord with a fluid hose. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

   The present invention relates to an apparatus for extending an electric cord so that electricity can be used even in a place without a power source. It can also be used for a hose that flows liquid and gas instead of an electric cord, and also relates to a device that extends the hose so that liquid, water, gas, and air can be used even in places where there is no liquid source or gas source.

There are methods of extending a power cord while using electricity, such as unwinding and stretching a bundled cord, or stretching a cord wound around a drum.

However, bundling the code is cumbersome, and when it is solved, it can be entangled and the work time is prolonged. It will also twist. Winding and unwinding around the drum goes smoothly, but the stationary power supply, the power supply side and the rotating drum side must be connected by contact. The contact wears with use and causes poor contact. Can't be used in dangerous places such as gas because of sparks.

As an improvement measure, there is no contact by connecting the stationary power feeding side and the rotating drum side with a spiral flexible cord.
In this case, since the length of the spiral flexible cord is finite, the length of the cord wound on the drum is also finite.

The problem to be solved is that the length of the cord wound on the drum is limited and limited.

This device is provided with a cord return prevention pipe body at an intermediate position on the drum, and each time the drum is rotated forward or reverse, the cord and extension cord on the drum are hooked on that pipe. The drum can be sent out or stored in one direction even if the drum is rotated forward or backward. In addition, the power supply cord and power supply cord rotate forward and reverse in conjunction with the drum, but because they are ordinary winding methods, only winding, returning, twisting, and returning are repeated, so the cord is not pulled or twisted. .
In addition, this device installs a power supply cord so that it swings to the left and right around the side wall of the drum, and when the drum is rotated within the allowable range, the power supply cord is rotated halfway and moved to the opposite side, and the drum is further rotated in the same direction. Wind up the extension cord. In this case, unlike the above, the drum can be rotated in the same direction, and the extension cord can be sent and wound.
It can be repeated indefinitely until the fatigue breaks. Therefore, the chord on the drum can be wound or unwound indefinitely.

Since the apparatus of the present invention is simply provided with a cord return prevention pipe at an intermediate position of the drum or a power supply cord so as to swing left and right, the apparatus is very low cost, has a simple structure and has few failures. Since it is contactless, it has a long life, is easy to maintain, and does not spark, so it can be used in places where it is easy to catch fire. In addition, when one continuous cord or connection point is reinforced with insulation tape or the like, there is no leakage. There is no leakage in the case of a hose.

Inexpensive, general-purpose parts, minimum number of parts, simple structure and easy installation and operation.

This device includes a power source for supplying electricity to the device, a power supply cord 6, an extension cord 7 to the place of use, a drum 2 around which the extension cord is wound, a protrusion that prevents the extension cord 7 from unwinding, a cord return prevention body 1 or a case The side cord 4 is formed by guiding the extension cord and preventing collapse.
FIG. 1 is an external perspective view of the apparatus. Stabilized by the legs 8, the power source and the power supply cord 6 are inserted from the side surface of the drum 2 having a circular side surface, and the cord on the drum 2, the extension cord 7 and the electrical contact, no electrical contact point, and directly connected without contact . For example, crimping, soldering, screwing, and pinching. The drum 2 is rotated forward and reverse by the handle 5, the extension cord 7 is hooked on the pipe 7 for preventing the return of the extension cord 7, and the extension cord 7 is wound up. Use, put in and out the code. If the cord is not broken, the side plate 4 may be omitted. If the extension cord is used as a power feeding cord and the power feeding cord is used as an extension cord, the cord reel can be moved while using electricity. It is convenient to carry with the handle 9. In this figure, the drum is supported on one side, but it may be supported on both sides. Circle number 1 in the drawing
Further, the leg 8 and the handle 9 may be telescopically movable by making the side surface of the drum 2 of the circled number 1 in the drawing flattened, for example, oval so as to form a major axis and a minor axis. When using, the leg 8 and the handle 9 are extended so that the side plate 4 does not collide. In storing, it is convenient to make the drum 2 compact by placing the major surface of the drum 2 horizontally and shrinking the legs 8 and the handle 9. The cord 7 for preventing return of the cord 7 and the body 1 may be set anywhere on the drum surface, but a long diameter portion is desirable. Compact when stored. The side plate 4-1 can be slid according to the winding length of the cord 7. The side plate 4-2 is fixed to the drum 2. Round number 2 in the drawing
Further, the drum 2 indicated by the number 1 in the drawing may be a plate, and the leg 8 and the handle 9 may be rotatable. When used, the leg 8 and the handle 9 are set to a stable angle. When storing, if the leg 8 and the handle 9 are parallel to the major axis of the plate, it is compact and convenient. The cord 7 for preventing return of the cord 7 and the body 1 may be set anywhere on the drum surface, but a long diameter portion is desirable. Compact when stored. The side plate 4-3 is formed integrally with the drum 2. Easy to produce. The side plate 4-4 is set to the drum 2 later. The side plate may be slidable in accordance with the winding length of the cord 7 as indicated by a round numeral 2 in the drawing. The long diameter portion of the drum 2 to which the cord 7 hits is rounded so as not to be damaged. 3 in the drawing
The side surface of the drum 2 may have any shape such as a linear shape or a planar shape as long as the cord is wound. It may be eccentric.

FIG. 2 shows the principle of the connection operation between the stationary power supply cord of this apparatus and the extension cord on the drum side of the dynamic rotation.
One end of the power supply cord 6 is connected to the plug 10 and the other end is connected to the side surface of the drum 2 in a straight line. The power supply cord 6 is rotated within an allowable twisting range that does not damage the power supply cord and does not impair electrical or mechanical functions. For example, the plug receives a certain amount of rotational force and pulling force, but will not move if it is installed to withstand it. If the power supply cord 6 is fixed to another object such as a leg 8, a wall, a floor, or a pile driven into the ground and then connected to the plug 10, no force is applied to the plug 10. When pulled, the power supply cord may be slack. If you reverse it, it will return. Furthermore, if it is rotated (reversed) as it is, the double rotational speed at the time of the first forward rotation can be obtained. The power supply cord should be easy to twist, strong against pulling force, and hard to break fatigue.
Circle number 1 in the drawing
One end of the power supply cord 6 is spirally wound around the plug 10 and the other end is wound on the drum 2 or a surface having the same rotational axis as the drum 2, and the cord is not damaged and does not impair the electrical or mechanical function. If the plug is rotated within the winding length range, the plug receives a certain amount of pulling force, but if it is installed to withstand it, the plug will not move. If the power supply cord 6 is fixed to another object and then connected to the plug 10, no force is applied to the plug 10. The power supply cord should be easy to bend, strong against pulling force, and hard to break fatigue. Round number 2 in the drawing
One end of the power supply cord 6 is spirally connected to a drum 2-1 connected and fixed to an arm 1-1 that rotates with the drum 10 at the other end together with the drum 2. The drum 2 is rotated in one direction, and the power supply cord 6 Rotate the drum 2-1 together with the arm 1-1 about the fulcrum 11 on the pipe-like support 1-0 installed on the drum 2 within the range of the winding length of the left, right or left. If it is shaken, the forward rotation and reverse rotation of the drum 2-1 occur alternately, and the winding and returning are repeated. The length of the pipe-shaped support 1-0 is equal to or greater than the thickness when the cord is wound to the maximum extent on the drum. The pipe-shaped support 1-0 and the arm 1-1 may be integrated with a flexible material (for example, rubber). An arbitrary position becomes the fulcrum 11. Further, in FIG. 11 described later, the twist of the circled number 1 in FIG. 2 may be used. The plug 10 receives a certain amount of tension and rotational force within the allowable range, but if it is installed so as to be able to withstand it, the plug does not move even if the drum 2 is rotated in one direction. If the power supply cord 6 is fixed to another object and then connected to the plug 10, no force is applied to the plug 10. The power supply cord should be easy to bend, strong against pulling force, and hard to break fatigue. 3 in the drawing
The above can be applied to a hose for flowing a liquid such as water or a gas such as air instead of an electric cord. This device is a liquid, a gas supplying gas, a gas supply hose 6, an extension hose 7 to the place of use, a drum 2 around which the extension hose is wound, a hose return preventing the unwinding of the extension hose 7, a pipe body 1 or in some cases. It consists of a side plate 4 that guides the extension hose and prevents collapse. The operation and usage are the same as for the electric cord. Liquid and gas leaks because a static supply hose from a liquid and gas source and a rotating dynamic extension hose can be connected directly and without contact, without a rotating joint where the liquid and gas are sealed with a gland packing or seal. There is no. The hose should be easy to bend, not to leak the contents, strong to pull, and hard to collapse. Hose materials include rubber and synthetic resin. The following can also be applied to the hose.

FIG. 3 is a view for explaining how to wind the extension cord 7 around the drum 2. The extension cord should be easy to bend, strong against pulling force, and hard to break fatigue. In the drawing, from the upper side of the pipe 1, the extension cord 7 connected to the feeding cord 6 is wound while rotating the drum 2 by θ1 degree within the allowable twisting and winding range of the feeding cord in FIG. 2. Since it cannot be wound any more, it must be reversed, but if it is reversed as it is, the extension cord 7 will be unwound, so the cord 7 return prevention pipe located at the middle (any position including the middle on the surface) on the drum surface by hand 1 is moved to the opposite side and the lower side of the pipe 1 in the figure and returned to prevent unraveling. The drum surface is divided into a reverse rotation and a normal rotation with the pipe 1 as a boundary. Further, even if the extension cord 7 is moved to the opposite side of the pipe 1, if it is rotated in the same direction as the original, or if it is wound on the same surface during reverse rotation, reverse rotation and forward rotation are mixed. You may mix. Circle number 1 in the drawing
The drum 2 is wound around the feeding cord 6 within the allowable range of FIG. This is repeated until the extension cord 7 can be wound up to the length θn. When the number of pipes 1 is one, the values of θ1 to θn are the same, but when there are a plurality of pipes 1, they can be different and can be flexibly dealt with. When the extension cord 7 is pulled, the drum 2 is rotated by the force, and is automatically unwound through the pipe 1. An axle 3 may be used to rotatably support the drum. If the winding angle is constant for the second and subsequent drum rotation angles, the first and second drum rotation angles can be doubled. Round number 2 in the drawing
Further, the side plate 4 may also be used as the pipe body 1. A plurality of notch grooves protruding on the drum surface with a width that allows the cords 7 to enter radially are provided on one or both end surfaces on the drum surface and on the side plate 4 outward from the central shaft 3 to rotate the drum. Each time the direction is changed, the cord 7 is inserted into the groove, turned and hooked. Alternatively, the plurality of pipe bodies 1 are set radially on one side or both sides of the drum so as to protrude on the drum surface, and are also used as the side plates 4 to be hooked each time the rotation direction of the drum is changed. It may be hooked by turning it between the grooves on the side plates on both sides or between the pipes. The bending radius of the cord 7 can be increased, and the cord 7 is less damaged. When a handle other than a retractable handle or the like is hooked on the handle 5, the hook with the handle is not used. 3 in the drawing
The cord 6 is inserted into a hollow arm 1-0 having a fulcrum on a pipe-like object protruding from an intermediate position on the drum surface, and connected to the cord 7 via the drum. The cord 7 is wound around the surface without the arm 1-0, the right surface or the left surface by turning it to the permissible range of FIG. The arm 1-0 is rotated halfway, and the cord 7 is moved to the opposite side, the left side or the right side so that the cord 7 does not hit the arm 1-0, and the cord 7 is wound in the same direction to the allowable range of FIG. The drum can be rotated in one direction. Repeat above. Circle number 4 in the drawing
First, the drum 2 is wound around the allowable range of the power supply cord 6 while rotating forward by θ1 degree. Then, the arm 1-0 and the surface to be wound are moved, and next time, the drum 2 is wound while rotating forward by θ2 degrees. Repeat until the extension cord 7 can be wound up. θ2 can be twice as large as θ1. Circle number 5 in the drawing

FIG. 4 shows the connection 15 of the power supply cord 6 and the extension cord 7 so that they can be replaced using the numeral 1 in the drawing of FIG. The extension cord 7 is pulled out from the hollow axle 3 that can be freely rotated by a bearing or the like, connected to the cord 6, and sandwiched between a pair of press plates 13-1 or 13-2 that matches the outer shape of the cord 6. The cord 6 is fixed by screwing a bolt 14 into the through-hole 12-2 which is inserted and pushed back into the screw 3 and threaded. If the feeding cord 6 and the extension cord 7 are the same, the connection 15 is not necessary. In order to increase the allowable θ degree in FIG. 3, a cord having a large twist angle may be used. The flat cord (13-1 side) is easier to twist than the round cord (13-2 side). Further, the whole or part of the cord 6 may be curled like a telephone cord.
When the drum is supported on one side and is not supported, the hollow axle 3 is not necessary, and the cord 6 and the cord 7 can be connected at any position on the side plate.
In general, when the drum is used while being rotated forward or backward, the cord 6 may be pulled out from an arbitrary position on the side plate. This is because even if it is wound around the axle 3, it can be solved by reversing it. Further, the axle 3 may be covered with a freely rotating cylinder. The cord can move even if it is entangled in a tube where the cord turns freely.

FIG. 5 shows the case where the numeral 2 is used in the drawing of FIG. 2 and the case where the cord 6 is inserted from the inside (right in the figure) side and the outside (left in the figure) side of the leg 8 is shown. The cord 6 can be inserted from the drum surface. In the case of the inner side, if the surface of the drum 2 is the same, a part of the surface of the drum 2 can be used, which is convenient for production and operation. In the drawing, the circled number 1 represents an external perspective view, and in the drawing, the circled number 2 represents a side sectional view. The axle 3, the leg 8, and the handle 9 are connected via a bearing or the like, but the other parts are fixedly connected. In order to increase the allowable θ degree of FIG. 3 as much as possible, the size of the side plates 4-2 and 4-3 is increased to increase the length of the cord to be wound. Or use a thin cord. Thin and wide cords will not fall easily to the left or right when unwound.
The cord 6 is inserted into the drum of the side plate 4-2 and into the drum 2 and is taken out of the drum 2. Or connect with the cord 7 on the way.
The cord 6 is inserted into the drum of the side plate 4-3, into the hollow axle 3, and into the drum 2, and is taken out of the drum 2. Or connect with the cord 7 on the way.
Further, all or a part of the cord 6 is wired along the surface of the winding drum of the cord 6 or the cord 7 or the like, or the like, and the winding drum of the cord 6 or the cord 7 or the like You may connect with the cord 7 on the surface. When setting code 6, bind and fix with string, screws, fasteners, etc. so as not to leave the drum surface. Easy to install, replace and maintain the cord.
In general, the side cross-sectional shape of the drum may be circular, flat, or any shape. The center may be eccentric. This is because it is only necessary to wind the cord.

FIG. 6 is the same as that in FIG. 5 except that the movable pulley 16-1 and the fixed pulley 16-2 are used so as to prevent the cord 6 from being entangled or slackened in order to increase the allowable θ degree of FIG. 3 as much as possible. is there. The movable pulley is tensioned and suspended by an elastic body such as rubber or a tension spring 17. One end of the cord 6 is fixed to the leg 8, and the other end is connected to the hollow axle 3 through a moving pulley and a fixed pulley and wound. When the cord is wound and unwound, the moving pulley moves, and the tension spring 17 is tensioned and hung so that the cord does not loosen.
A weight may be used instead of the tension spring 17, and the tension may be caused by pulling with a weight. As shown in FIG. 6, when the moving pulley is above the fixed pulley, a constant pulley that changes the direction of the force is set. When the moving pulley is below the fixed pulley, a weight is directly applied to the moving pulley.

FIG. 7 shows that the drum 2 can be rotated forward and backward even if the handle 5-1 is rotated in one direction. Hook the extension cord 7 on the pipe 1 by hand. The forward and backward movements of the rack gear 19-1 are changed to the rotational movements of the pinion gear 19-2 attached to the axle 3, and are made to correspond to the forward and reverse movements of the drum. Instead of the disk 18 with the handle 5-1, a forward / reverse motor 20 may be used for rotation. The cord 7 can be wound and unwound using a drive source instead of a hand. The extension cord 7 is wound and sent out using the forward / reverse switch of the motor 20. When the extension cord 7 is sent out, the motor 20 may be switched on when the extension cord 7 is pulled. For example, a pressure switch having a strength that is entered when the cord is pulled is provided in the holder 23 described below.
Further, in order to wind the cord around the pipe 1, the belt 22-1 is hung so that the wheel 21-1 and the wheel 21-2 sharing the shaft of the wheel having the crank of the rack gear 19-1 are interlocked. -2 is set between the wheels 21-3 and 21-4 interlocking with the belt 22-2, and the ring-shaped cord 7 holder 23 is set on the upper or lower side of the belt. The cord 7 is inserted into the ring of the holder 23 and shaken to the left and right. It is desirable that the ring of the holder 23 can be divided so that the cord can be easily inserted. When the cord holder 23 moves as shown by the arrow in the figure at the allowable θ degree shown in FIG. 3 (deviates from the position of the pipe 1 when θ in FIG. 3 changes (rotation direction)), the rack gear 19-1 moves forward or backward. Each time the cord 7 holder 23 moves back and forth on one side of the drum divided by the pipe 1 and moves to the other side so that the cord 7 is hooked on the pipe 1, the drum 7 rotates in reverse. The diameters of the wheels 21-1, 21-2, 21-3, 21-4 are adjusted. In order to ensure synchronization, the wheels 21-1, 21-2, 21-3, 21-4 are preferably gears, and the belts 22-1, 22-2 are preferably chains.
Circle number 1 in the drawing
In order to control the rotation of the motor 20 with the switch at the end of the cord 7, the control cord is attached to the cord 6, 7 (for example, tied with a string, wound with tape, etc.) or a multi-core cord 7 including a control cord 6, the power source is taken from the female plug 20-3 and passed through the normal and reverse switches 20-1 and 20-2, and is inserted into the positive and reverse terminals of the motor 20. The forward and reverse switches 20-1 and 20-2 should not be turned on simultaneously. The motor 20 does not rotate unless both the forward and reverse switches 20-1 and 20-2 are pressed. Press either to rotate corresponding to the switch. If the voltage drop is large, the forward and reverse terminals are controlled via a relay.
In the case of a hose reel, three control cords are required. Arrange it along the hose. Strengthen the waterproof function to prevent electric shock.
Round number 2 in the drawing
Further, a radio transmitter of a signal corresponding to the forward / reverse switch may be installed at the end of the cord 7 and a receiver of the signal may be installed on the power source side of the cord 6 to select and control the forward / reverse terminal of the motor 20. .

FIG. 8 shows that to prevent the drum 2 from rotating more than the allowable θ degree of FIG. 3, the power supply cord 6 itself is made strong against the pulling force or the belt-like pulling force strong along the power supply cord 6 or twisted. The drum 6 may be braked by fixing the cord 6 firmly to one end of the cord 6 to the rotating portion and the middle point with the plug to the fixed portion of the cord reel, for example, the leg 8. May be fixed to something other than this cord reel, such as a stake, but it is exclusively used to prevent the drum 2 from rotating beyond the allowable θ degree shown in FIG. One end of the string-like or belt-like member 24 is attached to the axle 3 or the related one, and the other end is fixed. When the drum 2 rotates, the string-like or belt-like object 24 is wound around the axle 3 or the related object, but does not turn when the set length is reached. You can turn the drum 2 by rotating it in reverse. In addition, an elastic body such as rubber or a spring may be attached to the other end to soften the shock, or the number 1 (perspective view) in the drawing.
The disk 33-1 fixed to the shaft 3 is connected to or combined with the disk 33-2 having a larger diameter and the allowable angle θ of the power cord is reduced to 360 degrees and turned to set the disk 33-2. The single stopper 34-1 may contact the stopper 34-2 fixed to the leg 8 to brake the rotation of the drum 2. Further, another stopper 34-1 is added so that the allowable range angle θ is within 360 degrees, and the stoppers 34-2 are within the narrow angles where the two stoppers 34-1 are housed. -1 may be applied to brake the rotation of the drum 2, or widened so that both ends of the stopper 34-2 are in contact with the rotation angle range of the stopper 34-1. The rotation may be braked. Round number 2 in drawing (perspective view)
Further, the male screw set on the shaft 3 is inserted into the female screw set on the leg 8, the shaft 3 is rotated and moved to the left or right, and the stopper 34-3 set within the allowable range θ degrees of the power cord is attached to the shaft 3 on the leg 8 The rotation of the drum 2 may be braked against this. Since the drum 2 moves to the left and right, it is easy to wind the cord smoothly. 3 in the drawing (Cross section)

  FIG. 9 shows that the extension cord 7 is prevented from returning by one or a plurality of cuts 25 instead of the pipe 1. Any shape of cut or groove may be used as long as it is easy to insert when inserting the cord, difficult to pull out while holding, and easy to pull out when holding. Insert the cord into the notch 25 and hook it. In some places, through holes 25-1 may be provided to reduce the weight.

The pipe 1 may be of any shape as long as it is easy to insert when inserting a cord, is not easily pulled out while being held, and is easily pulled out when being pulled out. The plane cross-sectional shape of the pipe 1 may be circular, flat or flat, for example, an elliptical shape, and the side cross-sectional shape may be an inverted triangle, a triangle, or a quadrangle, for example, a cylinder. . The surface of the pipe 1 should be smooth.
FIG. 10 is a cross-sectional view showing inverted triangles and triangles on the side surfaces of the pipe 1 and the notch 25.
The top portion 26-1 is rounded so that it can be easily put in and taken out, and is bent inwardly from the vertical line so that it is difficult to come off (26-2). Bend into a smooth curve (26-3). Moreover, you may set the long pipe or rod-shaped thing of the same diameter by bending along the external shape of 26-2, 26-3. The side cross-sectional shape may be an inverted triangular shape, a triangular shape, or a quadrangular shape such as a size cylinder. Circle number 1 in the drawing
The top 27-1 is rounded so that it is easy to put in and out, and a notch (27-2) bent on a straight line outside the perpendicular so as not to come off easily. Bend into a smooth curve (27-3). The distance between the tops is larger than the diameter of the cord. The side cross-sectional cut shape may be a triangular shape, an inverted triangular shape, or a U-shaped shape. Round number 2 in the drawing
The length of the hook pipe 1 or the notch 25 may be larger than, equal to, or smaller than the side plate 4-1. Make it easy to put in and out. Also, round the cord so that it will not be damaged.

FIG. 11 uses the twisting of the numeral 3 in the drawing of FIG. 2, and there is a notch for receiving the arm 28 around the side plate 4-1. In the drawing of FIG. 2, the one-numbered code 6 is drawn into the hollow arm 28 and the support pipe 1-0 and connected to the cord 7. When winding, grip the arm 28, rotate the side plate 4-1 in one direction, and rotate the allowable θ degree of FIG. 3 to the opposite side around the fulcrum 11 having the arm 28 on the side surface of the support pipe 1-0 by hand. Move to, insert into the notch and stop. At the same time, the surface around which the cord 7 is wound on the drum is also moved by hand so that the arm 28 does not hit the cord 7. When the rotation is θ degrees, the arm 28 and the surface to be wound are moved, and the above is repeated. In order to solve it, the reverse rotation operation may be performed. For operation, one person may extend the cord 7 and the other person may rotate the drum and arm while speaking. To prevent the arm 28 from coming off, a cover plate 29 that can be opened and closed so as not to enter the idling wheel 30 provided so that the side plate 4-1 can rotate smoothly may be provided.
In order not to rotate the side plate 4-1 more than the allowable θ degree of FIG. 3, the wheel 30 is connected to a disk having a diameter larger than the wheel 30 or combined to reduce the allowable range angle θ of the power cord to 360 degrees, The rotation of the drum 2 may be braked by turning and rotating one stopper set on the disk against the stopper fixed to the support frame of the wheel 30. Move the arm 28 to the opposite side, slide the stopper toward the center to remove the stoppers, rotate the side plate 4-1 slightly, and when the positional relationship between the stoppers is reversed, return the stopper to its original position. Continue to turn -1. Alternatively, the cord 6 may be twisted to have a strong resistance against the pulling force, and the rotation of the drum 2 may be braked with the braking force.
Further, all or a part of the cord 6 is wired along the surface of the arm 28 or the support pipe 1-0 or the winding drum, and the cord 6 is corded on the surface of the winding drum of the arm 28 or the support pipe 1-0 or cord 7. 7 may be connected. When the cord 6 is wired and set, the cord 6 is tied and fixed with a string, a screw, a fastener or the like so as not to leave the arm 28, the support pipe 1-0, and the drum surface. Easy to install, replace and maintain the cord. Easy to install, replace and maintain the cord.

FIG. 12 uses the cord 6 in FIG. 11 and the round numeral 2 (winding) in the drawing of FIG. A retractable handle 31 may be provided for turning when the arm 28 is on the opposite side. Further, one end of the tension spring 17-1 may be connected to the arm 28 and the other end may be connected to the support pipe 1-0 so that the arm 28 does not come out of the groove. The arm 28 is pressed against the groove by the force of the tension spring 17-1. In order for the side plate to rotate smoothly, the arm 28 enters the groove so that the provided wheel 30 does not enter, and a plate 29-1 that is symmetrical in the vertical direction and has the same shape as the circumference of the side plate is fixed to the arm 28. It may be set. The groove is closed only by half-turning the arm 28 left and right.

In FIG. 13, the arm 28 is flipped up and moved by the cord 7 so that the cord 7 can be unraveled by one person.
When pulling out the cord 7 from the upper and lower surfaces of the drum, it is shifted by the thickness of the arm so that the arm and the side plate are perpendicular to the center of the part 4-4 of the side plate 4-1, which has been processed into a string shape. The insertion pipe 31 arranged at the above position is inserted and fixed in one of the two holes 32 arranged symmetrically with a gap for the arm 28 to enter. When the cord 7 is pulled out from the upper surface of the drum, it is the lower side in the figure. When the cord 7 is flipped up, the arm rotates and swings to the opposite side around the fulcrum 11 on the upper surface of the support pipe 1-0 and stops against the insertion pipe 31. The insertion pipe 31 is made of iron so that the arm can be detached only by the jumping force of the cord 7, and the place where the insertion pipe 31 of the arm 28 hits is a permanent magnet or a mechanical holding mechanism, for example, an elastic U-shape. Are set so that the arm can rotate. If the cord 7 is pulled, the side plate is rotated by the force, the arm 28 is also rotated, and hits the cord 7. If it exceeds a certain speed, the arm will jump up and move to the opposite side. When the cord 7 is pulled out from the lower surface of the drum, the side plate 4-4 is rotated halfway and replaced with the other of the holes 32.
Moreover, you may open the clearance gap for the upper surface and lower surface in which the arm 28 enters in the two side plate 4-1 in the same position mentioned above. There is no need to replace the side plate 4-4. The arm and the side plate need not be at right angles.
If the cord 7 is used exclusively for the upper surface or the lower surface of the drum, a single gap or notch hole may be formed in the side plate 4-1.

FIG. 14 shows how to change the height of the handle 9 and the leg 8 of the circled numbers 2 and 3 in FIG. The leg 8 and the handle 9 are connected and fixed to the block body 8-1 for fixing the leg 8 and the handle 9 at an angle that stabilizes the leg 8 and the handle 9. The leg 8 and the handle 9 are expanded and contracted and fixed so as not to move with the screw 14. The hollow shaft 3 is connected to the block body 8-1 so that the hollow shaft 3 can rotate, and the cord 6 is passed through the hollow shaft 3. If the leg 8 and the handle 9 are shortened, the occupied space can be reduced, which is convenient for storage. Circle number 1 in the drawing
Further, the handle 9 and the leg 8 may be bent near the block body 8-1. Bending can reduce the occupied space and is convenient for storage. Round number 2 in the drawing
The two legs 8 and the handle 9 are fixed to the block bodies 8-2, 8-3 and 8-4. A hollow pipe is inserted into the through hole of the block body 8-4, and the width of the block bodies 8-2 and 8-3 is taken out and fixed. The hollow pipe is inserted into the through holes of the block bodies 8-2 and 8-3 that are slightly larger than the outer diameter of the hollow pipe. The leg 8 and the handle 9 are set to rotate at an arbitrary angle, and the screw placed on the outer diameter of the hollow pipe is tightened with the nut 14-1, and the block bodies 8-2, 8-3, 8-4, leg 8. Fix the handle 9. If the leg 8 and the handle 9 are placed in parallel with the major axis of the drum 2, the occupied space can be reduced, which is convenient for storage. The side surfaces of the block bodies 8-2, 8-3, and 8-4 should have high sliding resistance. A hollow shaft 3 having an outer diameter slightly smaller than the inner diameter of the hollow pipe is inserted into the inner surface of the hollow pipe. The hollow pipe and the hollow shaft 3 may be connected by a bearing. If the outer ring of the bearing is fixed to the hollow pipe and the inner ring is fixed to the hollow shaft 3, the hollow shaft 3 cannot be pulled out even if it is pulled. The cord 6 is passed through the hollow shaft 3. The rotation of the legs 8 and the handle 9 may be expanded or bent by the round numbers 1 and 2 in the drawing to be provided side by side. 3 in the drawing
The leg 8 and the handle 9 may be used alone or in combination with expansion, contraction, and rotation of the leg 8 and the handle 9. It may be applied to the circled number 1 in FIG. The above can also be applied to the winding of the cord 6 in FIG. A cord 6 take-up drum may be set on the hollow shaft 3. The shape of the cord 6 take-up drum may be matched to the shape of the drum 2.

This device is capable of winding and sending out cords and hoses without any limit while using the equipment, and since there are no contacts, there is no contact wear, and in the case of electricity, sparks are not scattered, and the electrical insulation performance is high and moist. Safe to use in any place. Easy to install and use anywhere. There is no liquid or gas leak in the case of a hose.

It is an external appearance perspective view of this apparatus. The basic operation and mechanism of the power supply cord of this device This shows how to wind the extension cord. This shows how to connect and connect the power cord. This shows the installation of the power supply cord. This shows the installation of the power supply cord. The operation of this device An over-rotation prevention device A representation of a hooking device. A representation of a hooking device. A representation of the operation of this device. A representation of the operation of this device. A representation of the operation of this device. Represents changing the height of legs and handles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hook pipe 1-0, 1-2 support body 1-1 Arm 2, 2-1 Drum 3-3-1 Axle 4, 4-1-4-4 Side plate 5 Handle 6 Feeding cord, cable, or hose 7 Extension cord , Cable or hose 8 legs
8-1 to 8-4 Connection, fixed block body 9 Handle 10 Plug 11 Support point 12-1 Extraction through hole 13-1, 13-2 Holding plate 14 Bolt 14-1 Nut 15 Connection point 16-1 Dynamic pulley 16-2 Constant pulley 17 17-1 Spring 18 Disk 19-1 Pinion gear 19-2 Rack gear 20 Motor 20-1-2 Switch 20-3-4 Plug 21-1-21-21 Wheel 22-1-22-2 Belt 23 Holder 24 String or band 25 Clearance 26-1 to 26-3 Shape 27-1 to 27-3 Shape 28 Arm, pipe 29 Address plate 30 Wheel 31 Insertion pipe 32 Hole 33-1 to 2 Disc 34-1 3 Stopper

Claims (8)

It consists of a power supply cord 6 that supplies electricity, an extension cord 7 to the place of use, a drum 2 around which the extension cord is wound, and a cord return prevention body 1 that prevents the extension cord from being unwound. The cord return prevention body set on the drum surface by connecting the cable with a single cord or rotating the drum within the allowable range of the number of winding or twisting of the power supply cord and winding the extension cord on the drum side. A device that winds the extension cord on the drum side by hooking on the drum and rotating the drum in the reverse direction within the allowable range of the power supply cord. A power supply cord is installed on the support body installed on the drum 2 surface and an arm having a fulcrum on the support body, and is connected to the extension cord in a contactless manner, or is passed through, and the power supply cord is wound around the support fulcrum. A device that winds the extension cord on the drum side by swinging the arm to the left or right and the extension cord to the right or left of the drum surface every time within the allowable range of the number of times or the number of twists. 2. The apparatus according to claim 1, wherein the side surface of the drum 2 is flattened or plate-shaped, and the legs 8 or the handles 9 are expanded / contracted, bent, or parallel to be convenient for storage. 2. The apparatus according to claim 1, wherein the power supply cord is hung on a tensioned pulley and a fixed pulley so as not to be loosened. In order to prevent the drum 2 from rotating beyond the allowable range of the power supply cord 6, one end of a string or strip having a certain length is fixed and the other end is connected to the axle 3 of the drum 2. Alternatively, the shaft 3 may be attached to the related one or the allowable range angle of the power supply cord is reduced within 360 degrees and applied to the stopper, or a screw is set on the shaft 3 of the drum in claim 1 to A device that brakes the rotation of the drum shaft 3 by moving it to the left or right and hitting a stopper provided within an allowable range angle of the cord. 3. Each time the rack gear 19-1 moves forward or backward according to claim 1, the cord 7 holder 23 reciprocates on one side of the drum divided by the cord return prevention body, and the cord 7 is moved to the cord return prevention body. The drum is rotated reversely after being moved to the other side so as to be caught or the switch set at the end of the cord 7 is used to control the rotation of the drive source of the rack gear 19-1. 3. The apparatus according to claim 2, wherein the side plate is provided with a notch hole in which the arm enters in a string shape, and the arm is rotated and swung by a cord. 8. The hose reel device without a rotary joint according to claim 1, wherein the electric cord is replaced with a hose for flowing a fluid.

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