KR100407178B1 - Winding device of wire / hose using casing - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cord reel device used in a wire and hose winding device and a structure thereof. The present invention relates to a size of a force drawn out when a power supply line is drawn out while reducing the cost of a reel spring used in a cord reel device. Can be kept constant, and when the stopper of the drawn power line is released, the power line is rolled up again and the inside is pulled back inside. To prevent the impact of excessive force on.

The reel shaft is rotated by the rotational force when the power cable is pulled out, the reel shaft gear located at the end of the reel shaft is rotated, and the reel spring gear equipped with the reel spring attached to one side of the reel shaft gear is installed. It is a device that transmits to the reel spring and releases the binding device and at the same time the reel shaft is pulled out by rotating the reel shaft with the resilient force of the reel spring to retract the inside of the machine.

Description

Winding device of wire / hose using casing {.}

The present invention relates to a structure of a cord reel winding device used for a wire and a hose winding device, wherein the structure is required when drawing the power line while reducing the cost of the reel spring used in the device of the cord reel. It keeps the size of the force constant and releases the stopper of the drawn power line. When the power line is drawn into the inside, the amount of winding force is constant so that the wire or hose can be rolled in smoothly. The present invention relates to a device for winding an electric wire or a hose to prevent an excessive impact on a machine.

Such a conventional winding device has a body 10 having a circular outer circumferential surface inside the body, a flange portion 20 located at both sides of the body, and a reel spring 30 for introducing a power line with elastic force, the body of Reel shaft 40 which passes through the center and the center of the reel spring (30) to transfer the rotational force of the body to the reel spring, the end of the reel shaft 41 of the reel shaft (311, see Figure 2a) It consists of a cord reel device consisting of a unidirectional locking mechanism (50) for transmitting the rotational force to the reel spring and a cover (60) to prevent the separation of the above devices. As the power cable is drawn out, when the button for releasing the binding device (210, see Fig. 3) for controlling the rotation of the flange part is operated, the reel shaft 40 is in a rotatable state. It removes the power line drawn out to the inside of the main body by the elasticity of the main body, and thus, when the main body is moved or stored, it is easy to move and convenient to store, thus promoting user convenience.

In the conventional winding device, the reel spring 30 having an elastic force for retracting the power line 11 drawn out to one side of the flange portion 20 is used, and a reel spring having a size similar to the size of the outer flange portion is used. In the prior art, when the user pulls out the power line 11, the output increases continuously as the power line becomes longer, and the input of the reel spring 30 is strong even when the user pulls in the power supply. The user's safety and device problems occur. In addition, the size of the reel spring (30) is almost the same size as the flange portion 20 of the body 10, the weight is heavy, the cost of the reel spring takes a lot, and the elastic force of the reel spring is difficult to assemble. In addition, since the reel spring rotates by the number of rotations of the flange portion, there is a problem in that the life of the reel spring is shortened.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to reduce the size of the reel spring in a cord reel having a built-in power line inside the main body, so that the power line is drawn out even when a constant force is applied during drawing. In addition, it maintains a constant pulling speed even at the time of entry, to promote convenience and safety on the user side.

In addition, the present invention is to reduce the cost of manufacturing the cord reel by miniaturizing the reel spring, and to extend the life of the reel spring by reducing the rotation proportion of the reel spring.

In order to achieve the object of the present invention, a reel shaft gear is installed at the end of the reel shaft penetrating the central axis of the cord reel, and a reel spring gear having an internal reel spring attached to one side of the reel shaft gear is rotatable. Attach. In the above process, since the rotational force for the reel shaft gear is converted to the reel spring gear, the main rotational force is transmitted to the longitudinal rotational force, thereby reducing the rotational force of the reel spring relative to the rotational force of the body. The reel spring installed inside the reel spring gear hypothesized on one side is hypothesized to rotate the reel spring as the reel spring gear rotates, and the reel spring has a force to pull the power line into the elastic force. Guide lines are installed on the outer circumferences of the two gears to prevent the gears from being separated. The method of controlling the rotational speed of the flange portion and the reel spring of the cord reel can perform the object of the present invention by adjusting the size of the two gears and in the present invention the gear wheel installed at the end of the reel shaft Since the cog wheels are made small and the reel springs are constructed relatively large, the two rotation speeds, that is, the rotation speed of the reel springs proportional to the rotation speed of the body, can be achieved to achieve the object of the present invention.

1 is an exploded perspective view of a conventional cord reel structure

2 is an exploded perspective view of a cord reel according to the present invention;

Figure 2a is a perspective view of the reel spring and the bidirectional locking mechanism used in the present invention

Fig. 2B is a plan view showing the clockwise direction of the reel spring of Fig. 2A.

FIG. 2C is a plan view showing the counterclockwise direction of FIG. 2A

3 is an assembled perspective view of the cord reel according to the present invention;

4 is a cross-sectional view of a cord reel according to the present invention.

Figure 5 is a plan view of an embodiment of removing the cover in the present invention produced a guideline and the flange unit integrally

5A is a cross-sectional view taken along the line A-A 'of FIG.

6 is a graph comparing torque of a conventional winding device and a winding device of the present invention.

* Explanation of symbols for main parts of drawings

100 ... body 110 ... power line 120 ... power cord 200 ... flange

220 ... Guidelines 300 ... Reel spring 310 ... Reel spring gear

311 ... Internal jamming projection 400 ... Reel shaft 410 ... Reel shaft gear

500 ... bidirectional locking mechanism

The power line and the hose reel winding device of the present invention is to install a reel shaft gear at the end of the reel shaft penetrating the central axis of the cord reel and rotate the reel spring gear in which the reel spring is installed inside one side of the reel shaft gear. Attach as much as possible. The reel spring installed inside the reel spring gear hypothesized on one side is installed to rotate the reel spring as the reel spring gear rotates, and the power line is drawn in by the elastic force of the reel spring. Guide lines are installed on the outer circumferences of the reel shaft gear and the reel spring gear to prevent separation of the gear wheels.

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

Figures 2 and 2a and 2b, 2c is an exploded perspective view of the cord reel according to the present invention and a perspective view and a plan view of a method of assembling the reel spring and the bidirectional locking mechanism, Figure 3 is an assembled perspective view of the cord reel of the present invention It is shown.

The body 100 has a flange portion 200 to prevent the separation of the power line 110 and the reel shaft 400 is assembled to the center of the body (100). A reel shaft gear 410 is installed on the chamfer 41 of the reel shaft 400 (see FIG. 1) on one surface of the flange portion. The reel spring gear 310 is assembled to one surface of the reel shaft gear 410 so as to be engaged with the reel shaft gear 410 and rotated, and the reel spring 300 is fixedly assembled inside the reel spring gear 310. In this case, the inner circumferential surface of the reel spring gear and the outer circumferential surface of the reel spring are assembled to be fixed, and the reel spring is assembled to have elasticity by rotational force inside the reel spring gear. The internal engaging protrusion 311 (refer to FIG. 2a) of the reel spring is placed on the projection of the outer circumferential surface of the bidirectional locking mechanism 500, and the bidirectional locking mechanism 500 is fixed to the fixed shaft 320. The bidirectional locking mechanism 500 and the fixed shaft 320 may be manufactured in one piece in order to reduce the number of parts and to be firmly fixed. In order to prevent the reel spring gear 310 and the reel shaft gear 410 from being separated, a guide line 220 is installed and a cover 600 for protecting the outer circumference of the flange portion is assembled.

The other side of the body flange portion is fixed to the rotating fixing piece 800 is attached to the body and the support 900 is rotatably assembled to the rotating fixing piece 800, it is prevented and fixed by the fixing screw 700. Outside the cover of the reel shaft 400, the support for supporting the reel shaft 420 is hypothesized to be rotatable reel shaft.

In the above description, the reel spring 300 is fixed to the reel spring gear 310 and the rotation fixing piece 800 is rotated to allow the device to use the power supplied from the power cord 120 while rotating as the body. Description of the method to be drawn out through the variable piece 910 is easily carried out at the level of those skilled in the art will not be described in detail.

The operation sequence will be described below.

The support base 900 of the cord reel assembled as described above is fixed inside the apparatus (not shown in the drawing), and when the user pulls the power cord 120 (Fig. 3) by hand, the flange part 200 and the reel shaft ( 400 rotates and the reel shaft gear 410 rotates by the rotation of the reel shaft. Rotation of the reel shaft gear rotates the reel spring gear 310 and the outer circumference of the reel spring 300 is fixed to the inside of the reel spring gear 310, and the center of the reel spring 300 is connected to the bidirectional locking mechanism 500. It is fixed to have an elastic force by the rotation of the reel spring (300).

Rotation of the reel shaft gear 410 rotates the reel spring gear 310, which converts the rotational force on the body 100 into the reel spring gear 310 through the reel shaft gear 410 to subordinate the main rotational force. As a result, the reel spring can be miniaturized and the rotational force of the reel spring with respect to the rotation of the body 100 can be reduced. In the present invention, a reel spring gear that rotates the reel shaft in response to a main rotational force and a reel shaft in response to the rotation of the reel shaft is defined as a slave rotational force.

Cord reel having elastic force by the reel spring 300 as described above is not restored by the binding device (210, Figure 3) installed on the outer peripheral surface of the flange portion 200 to release the binding device 210 When the button (not shown in the drawing) is operated, the power supply device 210 is detached from the flange portion 200 and the power line 110 protruding to the outside is restored again as opposed to the drawing time by the restoring force of the reel spring 300. .

The method and technical aspects of the operation of the attachment device 210 are also easily carried out at the level of skill of those skilled in the art and thus will not be described in detail.

2B and 2C show a case in which the user reverses the rotation of the cord reel according to the shape of the device when the user pulls out the power line. Referring to the drawings, first, in the clockwise direction (FIG. 2B), the reel spring gear 310 2) When the reel spring 300 is assembled, the internal catching jaw 311 at the center of the reel spring is caught by the catching protrusion 510 of the bidirectional catching mechanism 500, and rotates in a counterclockwise direction. In the case of rotation, if the reel spring 300 is assembled by reversing the attachment, the reel spring 300 is caught by the interlocking projection 510 which is hypothesized by the inner locking jaw 311 and the bidirectional locking mechanism 500 at the inner center of the reel spring 300. The reel spring is rotatable. This technique is possible by installing the engaging projection 510 which is the bidirectional locking mechanism 500 in both directions.

Figure 4 shows a cross-sectional view of the cord reel of the present invention.

The reel shaft 400 rotates in the same direction according to the rotation of the body 100 on the central axis of the body 100, and the reel shaft 400 rotates the reel shaft gear 410 and reel shaft gear 410. Rotates the reel spring gear 310. The bidirectional locking mechanism 500 attached to the fixed shaft is hung at the center of the reel spring 300, and a portion of the outer circumference of the reel spring 300 is fixed inside the reel spring gear 310.

FIG. 5 is a plan view of an embodiment in which the cover 600 is removed and the guide line 220 and the flange part 200 are integrally manufactured in order to reduce the number of parts and simplify assembly of the present invention. The guide line 220 and the flange part 200 are manufactured in one unit, and the anti-separation jaw 230 is disposed on the upper part of the guide line 220 to prevent the reel spring gear 310 and the reel shaft gear 410 from being separated. ) Is hypothesized. When the reel spring gear 300 and the reel shaft gear 410 are assembled, the guide line 220 removes a portion of the circumference in order to be slightly pushed outward of the circumference by the release preventing jaw 23.

FIG. 5A is a cross-sectional view of a portion A-A 'of FIG. 5. When the reel spring gear 310 is assembled, the guide line 220 is pushed outward by the release preventing jaw 230 and then returned to its original position. The reel spring gear 310 is prevented from coming off. As the guide line 220 and the flange part manufactured as described above are integrally manufactured, the cover 600 can be removed, thereby reducing the number of assembly parts and simplifying assembly.

6 is a graph comparing the attraction between a conventional reel spring and a reel spring according to the present invention, in which the horizontal axis represents the number of rotations of the reel spring and the vertical axis represents the magnitude of the force with respect to the rotations. The dotted line 6a shows the magnitude of the force of the cord reel using the conventional reel spring as the rotational speed increases, and the solid line 6b shows the magnitude of the force of the cord reel using the reel spring in the present invention to the rotational speed. It is shown accordingly. The exact number of rotations of the two reel springs used in the above experiments was determined by the length of the power line being drawn out of different sizes, and this is related to the method used in practice, so it may be judged as the length of the power line being drawn out.

Initially, the reel spring is rolled up three times, and the starting point is similar, three times on the horizontal axis and 300g on the vertical axis. However, as the length of the power cord being drawn out becomes longer, the difference is gradually increasing, and when it is wound about 15 times, the magnitude of the force is showing a difference of 275g. In other words, the conventional cord reel 6a has a force range of 300 to 750 g and a deviation of 350 g, whereas the cord reel 6b of the present invention can calculate an experimental value with a force deviation of 175 g to 300 to 475 g. As a result of this experiment, the code reel according to the present invention means that there is almost no difference between the time of drawing out the first power line and the following output from the user's point of view.

The cord reel made according to the present invention can be easily drawn out of the power line even when the power line is drawn out, and can be drawn at a constant speed even when the power line is drawn out, so that the user's convenience and safety can be promoted. In addition, by reducing the size of the reel spring, the cost of the cord reel is reduced, and the weight of the cord reel itself is reduced, thereby reducing the weight of the whole. Also, the assembly of the cord reel is easy. By adjusting the size of the gear, the rotation ratio of the reel spring and the rotation of the flange can be adjusted, and the reel spring can be reduced in speed, thereby extending the life of the entire cord reel by extending the life of the reel spring.

Claims (3)

In the power line lead-in / pull-out device consisting of a circular body (100) winding the reel and a flange portion 200 is installed on one side of the body and provided with a spring temporary portion having a restoring force to facilitate the reel in / out of the reel, The spring temporary portion is composed of a reel shaft 400, a reel spring gear 310, a reel spring 300, a bidirectional locking mechanism 500, a fixed shaft 320, one end of the reel shaft 400 is a flange portion Passing through the center of the circular body 100 through the center of the assembly screw 700 is assembled, the other end is provided with a reel shaft gear 410, the reel spring 300 is assembled on one side of the flange portion 200 While the fixed shaft 320 may be installed, the bidirectional locking mechanism 500, the reel spring 300 and the reel spring gear 310 are sequentially assembled to the fixed shaft 320, and the reel spring gear 310 is installed. ) Is meshed with the reel shaft gear 410, and the inner circumferential surface of the reel spring gear 310 and the outer circumferential surface of the reel spring 300 are fixed to each other so that the reel spring 300 is rotated in the reel spring gear 310. Assembled to have elasticity, the other end 311 is characterized in that it is configured to be caught by the locking projections 510 of the bidirectional locking mechanism 500. Take-up device of the wire / hose according to. The method of claim 1 The reel shaft gear 410 and the reel spring gear 310, the outer circumferential surface of the wire / hose winding device, characterized in that the guide line 220 is provided with a release prevention jaw 230 so as not to escape. The method of claim 1 While the bidirectional locking mechanism 500 is completely fixed to the fixed shaft 320, the bidirectional locking mechanism 500 includes two or more locking protrusions 510, and the bidirectional locking mechanism 500 includes a locking protrusion 510. 510 is a winding device of the wire / hose, characterized in that the locking phenomenon is operated even when the spring is rotated in the opposite direction to the opposite direction relative to the rotation direction of the reel spring (300).