JP3429533B2 - Reel device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reel device in which a linear member such as a power cord is pulled out by a desired length, held in this state, and rewound by releasing the holding. is there.

[0002]

2. Description of the Related Art Conventionally, most power cords used in automobile maintenance factories are mounted on reel devices. In such a reel device, however, the cord is pulled out to a desired length, and the pulled-out position can be held even if the hand is released from this state, for example, Japanese Patent Publication No. 50-6596. As disclosed in, a ratchet having a recess formed in a part of its peripheral edge is integrally attached to a winding drum, and the cord is pulled out by a desired length by the action of a pawl rod locked to the ratchet. While holding the cord in place, when winding the cord, pull the cord further in the direction to pull it out and rotate the ratchet, and position the recessed portion in correspondence with the pawl rod, so that the action of the pawl rod on the ratchet is achieved. There is a configuration in which the cord is rewound by releasing the drum and ratcheting the drum and ratchet at once by the action of a spring.

[0003]

However, in the reel device configured as described above, when the cord is pulled out, if the cord 1 is pulled out to the end as shown in FIG. Due to the inertia of the rotation of the winding drum 2 at this time, the end portion of the cord 1 may cross the outlet port 3 and enter the rotating direction of the drum.

When the cord 1 is released in this state, the pulled-out state may be maintained by the action of the pawl rod which is locked to the ratchet as described above.
From this state, when the cord 1 is pulled further in order to wind up the cord, the pulling-out force at this time causes the winding drum 2 to rotate in the direction opposite to the direction for releasing the action of the pawl rod on the ratchet. As a result, the ratchet cannot be unlocked by the pawl rod, and the cord 1 remains in the pulled-out state.

Therefore, when such a state is encountered,
A worker manually rotates the winding drum 2 in a direction in which the action of the pawl rod on the ratchet is released and the cord 1 is rotated.
It makes it possible to wind up.

[0006] However, generally, in a car garage or the like, a reel device of this type is often used by being suspended from the ceiling. Therefore, when the cord 1 is left pulled out as described above, a worker is required. Has to go up to a high place and perform work to release this state, which not only poses a danger to the work, but also hinders the progress of the original work, resulting in extremely poor usability. There was a point.

The present invention has been made in view of the above circumstances, and it is possible to prevent the linear member such as the power cord from being left in the pulled-out state, and to smoothly pull it out and rewind it.
Moreover, it is an object of the present invention to provide a reel device that can be reliably performed.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a reel device main body, and a winding drum rotatably provided in the reel main body device main body against a biasing force applied in a predetermined rotation direction. By winding the winding drum, one end of which is fixed to the winding drum and the other end of which is led out of the reel device main body, the winding drum is rotated against the biasing force. A first linear member that can be pulled out to a desired length, and a position where one end is fixed to the first linear member and the other end is fixed to one end of the first linear member of the winding drum. From the first linear member , which is fixed at a predetermined distance from the winding drum in the circumferential direction of the winding drum.
Is stretched in a straight line with the
The winding is performed at two points separated by a predetermined distance together with the first linear member.
A second linear member for pulling the winding drum, and the rotation of the winding drum against the biasing force due to the pulling out of the first linear member provided on the winding drum, When the first linear member is pulled out, the rotation of the winding drum is prevented according to the biasing force, and the rotation blocking of the winding drum is released by the rotation against the biasing force to release the biasing force. And a ratchet that allows the first linear member to be unwound by the rotation of the rotary drum in accordance with the above.

Also, one end of the second linear member is fixed to a portion of the first linear member led out from the reel device main body, and the other end is fixed to the first line of the winding drum. The one end of the strip-shaped member is fixed at a position separated by a predetermined distance in the circumferential direction of the winding drum from the fixed position.

[0010]

As a result, according to the present invention, when the first linear portion is pulled out to the terminal end from the winding drum, the second linear member is stretched linearly, and the first and second linear members are extended. By pulling the take-up drum at two points separated by a predetermined distance by the member, the rotation of the take-up drum is forcibly prevented, and the end portion of the first linear member is wound beyond the lead-out portion from the reel device main body. It prevents the drum from entering the rotational direction of the drum, so that the tension of the second linear member is loosened even if this state is held by the ratchet in the pulled-out state up to the terminal end of the first linear member. By pulling the first linear member in the direction and rotating the winding drum further, the locking by the ratchet can be released, and the first linear member can be reliably wound around the winding drum. Can be returned.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example in which the present invention is applied to a reel device for winding a cord. In the figure, 11 is a case main body, and this case main body 11 is a case 111 having a bottomed short cylindrical shape.
And the cylindrical case 112 having the partition 112a are combined to form the drum accommodating chamber 12 and the transformer accommodating chamber 13. The opening of the cylindrical case 112 having the partition 112a is closed by the lid 113.

The central portion of the case body 11, that is, the case 1
The reel shaft 14 is provided in the central part of the lids 113 and 112 and the lid 113.
Is fixed. In this case, the reel shaft 14 is made of a cylindrical insulating material, one end of which is fitted into a boss 113a formed in the center of the lid 113, and the other end of which is fixed to the case 111 by a nut 15.

A take-up drum 16 is rotatably provided on the reel shaft 14. The winding drum 16 includes a half drum 163 in which disc-shaped side plates 162, 162 are integrally formed on short cylindrical drum portions 161, 161.
It is configured by combining a pair of 163.

Then, in one half drum 163,
The spiral leaf spring 17 is loaded. This spiral leaf spring 1
7 is a spirally wound metal band. The outermost peripheral end of the metal band is fixed to the winding drum 16, and the innermost peripheral end of the metal band is fixed to the reel shaft 14 via the brake coil 18. A spring force is accumulated by the rotation of 16 and a rewinding force acts on the winding drum 16. Here, the brake coil 18 is wound around the reel shaft 14 and is maintained in a free state against the spring force of the spiral leaf spring 17 applied in the reverse rotation direction, so that the spiral leaf spring 17 moves in the reverse rotation direction. I try to prevent it from being tightened.

The cord 19 is wound around the winding drum 16 as described above. This cord 19 has a transformer accommodating chamber 13 at one end through a slip ring (not shown).
In addition to being connected to the transformer 20 housed in, the power supply unit is connected to a power source (not shown), and the other end is led out from the cord outlet 100 of the case body 11 to connect a load such as an illumination lamp.

Thus, by pulling the side of the cord 19 to which the load is connected, the winding drum 16 rotates while the spiral leaf spring 17 is being tightened, and the cord 19 can be pulled out to a desired length.

Further, the code 19 is, as shown in FIG.
The one end on the terminal side is fixed to the winding drum 16, and one end of the short rope 21 as a linear member is fixed to a portion of the case body 11 which is slightly led out from the cord drawing port 100. The other end of the rope 21 is fixed at a position separated from the position where the cord 19 of the winding drum 16 is fixed by a predetermined distance in the circumferential direction of the winding drum 16. The rope 21 is wound around the winding drum 16 together with the cord 19, and is stretched linearly as shown in the figure with the cord 19 pulled out to the end. By pulling the take-up drum 16 at the point, the rotation of the take-up drum 16 is forcibly prevented, and the end portion of the cord 19 is prevented from passing over the outlet 100 and entering the take-up drum 16 in the rotational direction. ing.

On the other hand, as shown in FIG. 3, a ratchet 22 is provided inside the case 111 of the case body 11.
The ratchet 22 has a ratchet wheel 23 and a ratchet lever 24. The ratchet wheel 23 is integrally attached to the winding drum 16 around which the above-described cord 19 is wound, and rotates together with the winding drum 16.

In this case, the ratchet wheel 23 has a disc shape, and a plurality of claw portions 231 are formed on a half of the peripheral edge thereof.
A plurality of U-shaped groove portions 232 are formed in the other half, the pawl portion 231 is locked by the pawl lever 24 described later, and the groove portion 232 releases the locking by the pawl lever 24. In addition, the pawl lever 24 is a spring 24.
1 are connected, and a biasing force in the upward direction in the drawing is given.

Next, the operation of the embodiment configured as described above will be described. Now, when nothing is done to the cord 19 drawn out from the cord pull-out port 100 of the case body 11, the ratchet 22 has the claw lever 24 and the ratchet wheel 23.
Into the U-shaped groove portion 232. FIG. 3 shows this state.

When the cord 19 is pulled from this state,
While winding the spiral leaf spring 17 tightly, the winding drum 16 rotates around the reel shaft 14 and the cord 19 is pulled out. Then, as the take-up drum 16 rotates, the ratchet 22 causes the ratchet wheel 23 integrally provided on the take-up drum 16 to start rotating in the direction of the solid line arrow shown in FIG.

In this case, when the ratchet wheel 23 rotates in the direction of the solid line arrow, the claw lever 24 is pushed from the back portion of the claw portion 231 of the ratchet wheel 23 and rides over the claw portion 231. It will not be locked. After that, the cord 19 is continuously pulled out until the cord 19 reaches a predetermined length, and when the ratchet wheel 23 continues to rotate together with the winding drum 16, the pawl lever 2
4 repeats the operation of climbing over each claw portion 231
The cord 19 can be pulled out without any problem.

Next, when the pulling out of the cord 19 is stopped,
The winding drum 16 tries to reversely rotate in the winding direction of the cord 19 by the unwinding force accumulated in the spiral leaf spring 17, and the ratchet wheel 2 provided integrally with the winding drum 16 is provided.
3 also tries to rotate in the reverse direction in the direction of the broken line arrow shown in FIG.

At this time, when the pawl lever 24 is positioned opposite to the pawl portion 231 with respect to the reverse rotation of the pawl wheel 23 in the direction of the broken line arrow, the spiral leaf spring 17 added to the pawl wheel 23 winds the coil. The pawl lever 24 is locked to the pawl portion 231 by the returning force, and the rotation of the pawl wheel 23 is blocked. As a result, the rotation of the winding drum 16 is locked by the ratchet 21, and the cord 19 can be used while being pulled out to a desired length.

Thereafter, in order to release the lock by the ratchet 22 and rewind the cord 19, the cord 19 is pulled out against the biasing force of the spiral leaf spring 17. When the claw lever 24 comes to a position facing the groove 231 of the ratchet wheel 23 by this operation, the claw lever 24 falls into the groove 231 and the claw lever 24 releases the locking of the claw 231. As a result, from this state, code 1
When the hand is released from 9, the take-up drum 16 is rotated by the rewinding force accumulated in the spiral leaf spring 17, and the cord 19 is finally taken up by the take-up drum 16.

However, in such a series of operations, when the cord 19 is pulled out, the cord 19 may be pulled out to the end vigorously. In this case, when the cord 19 is pulled out to the terminal end, the rope 21 wound around the winding drum 16 together with the cord 19 is rewound, and the cord 19 is linearly drawn out to the terminal end as shown in FIG. The winding drum 16 is stretched, and the winding drum 16 is pulled from two points separated by a predetermined distance together with the cord 19.

As a result, the rotation of the winding drum 16 is
It is forcibly blocked, and the end of the cord 19 is pulled out 1
It is prevented that the winding drum 16 is rotated in the rotational direction of the winding drum 16 beyond 00, and the winding drum 16 is stopped in the illustrated state.

Then, in this state, the rotation of the winding drum 16 is temporarily locked by the action of the pawl lever 24 which is engaged with the pawl portion 231 of the pawl wheel 23, and the cord 19 is pulled out to the end portion. Rope 21 even if held
Direction to loosen the tension, that is, in the case of Fig. 2, cord 1
By tilting 9 to the left and pulling it, the take-up drum 16 can be further rotated. If this operation causes the pawl lever 24 to come to a position facing the groove 231 of the ratchet wheel 23 of the ratchet wheel 22, The lever 24 has a groove 231.
Then, the locking of the claw portion 231 by the claw lever 24 is released. Then, when the cord 19 is released from this state, the winding drum 16 is rotated by the rewinding force accumulated in the spiral leaf spring 17, and finally the cord 19 is rotated.
Will be wound up on the winding drum 16.

Therefore, in this way, code 1
One end of the end of 9 is fixed to the winding drum 16, one end of the rope 21 is fixed to a portion of the case main body 11 slightly protruding from the cord pull-out port 100, and the other end of the rope 21 is fixed to the winding drum 16. 16 is fixed at a position separated by a predetermined distance in the circumferential direction of the winding drum 16 from the position where the cord 19 is fixed, and the cord 19 is stretched linearly in a state of being pulled out to the end, By pulling the take-up drum 16 from two points separated by a predetermined distance with the rope 21, the rotation of the take-up drum 16 is forcibly prevented, and the terminal end of the cord 19 passes over the outlet 100 and the take-up drum 16 rotates. Therefore, even if the pulled-out state of the cord 19 up to the terminal end is maintained, the cord 21 is stretched in a direction that loosens the tension. Pulling Tilt the 19, ratchet by further rotating the winding drum 16 22
Since it is possible to release the locking by the, the end of the cord as in the conventional case goes over the outlet and enters the rotation direction of the winding drum, and in this state the locking of the ratchet cannot be released, It is possible to avoid the inconvenience that the code is left pulled out.

The present invention is not limited to the above-mentioned embodiments, but can be carried out by appropriately modifying it without departing from the scope of the invention.
For example, in the above-described embodiment, the example applied to the reel device for winding the cord is described, but the present invention can be applied to the reel device for other linear members such as the reel device for winding the air hose. Further, in the above description, the short rope 21 is used as the linear member, but as the linear member here,
Weaving ropes, steel ropes, chains, etc. are considered. Also, in the above,
Although one end of the rope 21 is fixed to a portion of the cord 19 that is slightly led out from the cord outlet 100 of the case body 11, it may be fixed to a predetermined portion of the cord 19 inside the case body 11. .

[0031]

According to the present invention, the winding drum first
The second linear member is stretched in a straight line when the linear portion of the coil is pulled out to the terminal end, and the winding drum is pulled by pulling the winding drum at two points separated by a predetermined distance by the first and second linear members. The rotation of the drum is forcibly prevented, and the end portion of the first linear member is prevented from entering the rotation direction of the winding drum beyond the pulling portion from the reel device main body.
Even if this state is held by the ratchet in the pulled-out state up to the terminal end of the first linear member, the first linear member is pulled in the direction in which the tension of the second linear member is loosened, and the winding drum is further extended. By rotating, the locking by the ratchet can be released, and the first linear member can be reliably rewound on the winding drum.

As a result, even when a reel device of this kind is used by being suspended from the ceiling, such as in an automobile garage, the cord remains pulled out as in the conventional case, and the worker is placed in a high place. It is possible to eliminate dangerous work such as going up and releasing this state, and even when used in busy places, pulling out the cord to the desired length and rewinding it smoothly and securely. Therefore, it is possible to eliminate the obstacles in the progress of the work and to greatly improve the usability.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is an enlarged view showing a main part of one embodiment.

FIG. 3 is a view showing a mounted state of a ratchet.

FIG. 4 is a diagram showing an example of a conventional reel device.

[Explanation of symbols]

11 ... Case body, 12 ... Drum chamber, 13 ... Transformer accommodation room, 14 ... reel shaft, 16 ... winding drum, 17 ... spiral leaf spring, 18 ... Brake coil, 19 ... Code, 20 ... trance 21 ... rope, 22 ... Ratchet, 23 ... Claw wheel, 24 ... Claw lever

Claims (2)

(57) [Claims] 1. A reel device body, a winding drum rotatably provided in the reel body device body against a biasing force acting in a predetermined rotation direction, and a winding drum wound around the winding drum. , One end of which is fixed to the winding drum, the other end of which is led out of the reel device main body, and the winding drum is rotated against the biasing force so that it can be pulled out to a desired length. 1
From the position where one end is fixed to the first linear member and the other end is fixed to one end of the first linear member of the take-up drum in the circumferential direction of the take-up drum. Is fixed at a position separated by a predetermined distance, and the first linear member is pulled out to the end.
In the state, it is stretched linearly, and together with the first linear member,
Pull the take-up drum at two points separated by a predetermined distance
The second and the linear member, to permit rotation against the biasing force of the winding drum with the withdrawal of the first linear member provided in the winding drum of the first linear member in The rotation drum of the winding drum in the pulled-out state according to the biasing force, and the rotation blocking of the winding drum is released by the rotation against the biasing force to release the rotation drum according to the biasing force. And a ratchet that allows the unwinding of the first linear member by the rotation of the reel device. 2. The second linear member has one end at which the first
Is fixed to a portion of the linear member that is led out from the reel body, and the other end is predetermined in the circumferential direction of the winding drum from a position where one end of the first linear member of the winding drum is fixed. The reel device according to claim 1, wherein the reel device is fixed at a position separated by a distance.