KR200468161Y1

KR200468161Y1 - Safe device using tension of laundering hanger driven by motor

Info

Publication number: KR200468161Y1
Application number: KR2020120005028U
Authority: KR
Inventors: 정연곤
Original assignee: (주)웰테크
Priority date: 2012-06-14
Filing date: 2012-06-14
Publication date: 2013-07-26

Abstract

The present invention relates to a wire safety device of an electric clothes dryer, the wire safety device is formed in each of the left and right walls of the guide hole and the roller body having a hollow portion in the inside, and the hollow portion of the roller body is installed in the guide hole A roller which is fixed to the roller shaft to be inserted and is capable of guiding the wire, a separation prevention shaft which is installed on the roller body in a horizontal position with the roller shaft to prevent the wire from passing through the roller; An elastic spring installed perpendicularly to both ends of the roller shaft and the separation prevention shaft to impart elasticity to the roller, and a guide bracket fixed to the roller in a form of wrapping the roller inside the roller body, and the guide bracket Limit installed inside the roller body with the ground piece connected to the lower portion of the It is configured to include the position.
Therefore, the structure of the wire safety device can be improved to guide the wire in a stable state and at the same time to prevent the wires from being pulled out and entangled. Stability and durability can be improved.

Description

SAFE DEVICE USING TENSION OF LAUNDERING HANGER DRIVEN BY MOTOR}

The present invention relates to a safety device for preventing wire detachment of an electric clothes dryer, and in particular, to prevent the detachment by guiding the wire in a stable state and to improve the durability by installing a limit switch to control the motor inside the device. It relates to a wire safety device of an electric clothes dryer.

In general, the electric laundry dryer has a configuration in which the laundry hanger rod is lifted and lowered by a lift method, for example, a driving device, in order to effectively utilize an indoor space.

Referring to the conventional electric laundry dryer with reference to Figure 1, the electric clothes drying rack 100 is a body housing 200 fixed to the ceiling, and is installed inside the body housing 200, the wire winding machine 220 And a set of guide rollers 300 installed at both ends of the wire winding machine 220 to guide the wire 230 wound on the wire winding machine 220, and the wire ( The bracket 400 is installed at the end of the 230, and a plurality of clothes hanger rod 500 and the link body 600 connected between the bracket 400.

Accordingly, in the conventional electric laundry dryer 100, when the wire winding machine 220 is rotated forward and reverse by the driving device 210, the wire 230 is guided by the guide roller 300 to hang the clothes hanger. Adjusting the height of the bracket 400 is connected to the rod 500, the link body 600 is operated in such a way as to expand and contract.

At this time, the conventional electric clothes drying rack 100, when the clothes hanger rod 500, which goes up and down is caught by an obstacle, the wire 230 is prevented from being overloaded with the driving device 210, and the guide roller 300 To prevent tangling by loosening

Sea safety device 700 is installed. Such a conventional wire safety device 700 is typically a limit switch is applied, this limit switch performs a function to momentarily cut off the power applied to the drive unit 210 through the ground / short operation.

However, in the limit switch applied to the existing wire safety device 700, the load of the wire 230 is transmitted when the wire 230 is released while the ground piece is always pressed in contact with the contact by the load of the wire 230. Pressure is released

When the ground piece in contact with the wire 230 is short-circuited to cut off the power applied to the driving device. Thus, when the pressing force of the wire 230 is continuously transmitted to the ground piece of the limit switch, if the long-term use When the wire 230 is released, the elastic force of the ground piece is deteriorated, so that the ground piece is not properly operated so that the wire is entangled because the power applied to the driving device 210 cannot be cut off immediately.

On the other hand, in order to solve the above problems, in the 'electric laundry drying rack' registered in the Republic of Korea Utility Model Registration No. 397022, the auxiliary roller and the roller shaft of the auxiliary roller, the wire is located on the upper outer periphery, and the roller shaft of the auxiliary roller is built in both sides A guide body of a long hole protruding from the roller body having a hook portion which is formed on both sides and is bent outwardly on both sides, a shaft guide formed on the roller shaft protruding outward of one side of the roller body, and the shaft guide A limit switch having a ground piece that is in close contact with an upper end side, and two elastic springs, one side of which is hooked to a hook portion formed on both sides of the roller body, and the other side of which is hooked to a roller shaft protruding to both sides of the roller body. Wire safety devices are disclosed.

Such a wire safety device of Utility Model Registration No. 397022 has a wire hooked to the upper outer periphery of the auxiliary roller built up inside the roller body when the clothes hanger rod is normally lifted and lowered, and guided by the auxiliary roller. Since the load is pressed by the wire to be transmitted, the shaft guide arranged on the roller shaft of the auxiliary roller is lowered to the lower side of the roller body. In addition, the elastic spring, which is stretched on one side of the roller shaft, is extended to be opened, and the ground piece in contact with the upper portion of the shaft guide is placed in a state of being separated from the limit switch.

In this state, when the clothes hanger rod is caught by an obstacle and does not operate, the load of the clothes hanger rod is not transmitted to the wire, so that the auxiliary roller pressed by the wire has an elastic spring of which one side is hung on the roller shaft. The auxiliary roller is also moved upward from the inside of the roller body by moving the roller shaft upward by a fast restoring force. In addition, since the shaft guides arranged on the roller shaft are also moved upwards, the ground piece of the limit switch that is in contact with the upper portion of the shaft guide is grounded to cut off the power applied to the motor. Accordingly, in the wire safety device of Utility Model Registration No. 397022, the grounding piece is always kept away from the limit switch, so that the elastic force of the grounding piece can be prevented.

However, the wire safety device of the Utility Model Registration No. 397022 is that the hanger rod is caught by an obstacle, so that the load of the hanger rod is not transmitted to the wire, and thus the load is released in the process of moving the auxiliary roller to the upper side by the elastic spring. There is a problem that the wire is entangled in the auxiliary roller and the roller body. In other words, there is a problem that the wire hanger is entangled with the auxiliary roller and the roller body until the wire hanger is caught by an obstacle and the ground piece of the limit switch is grounded at the same time as the wire is released and the driving of the motor is stopped. If such a problem occurs, there is a hassle of restoring the tangled wires, and when the motor is operated without recognizing the tangled state of the wires, a problem occurs due to abnormal operation.

In addition, since the limit switch is installed outside the roller body surrounding the roller, the conventional wire safety device may cause a malfunction due to external force or impact during operation, and thus the limit switch may be damaged. There was also a problem of durability.

Therefore, the present invention is proposed to solve the problems of the conventional wire safety device of the electric clothes dryer, and improves the structure of the device to guide the wire in a stable state and at the same time install a limit switch to control the motor inside the device. It is an object of the present invention to provide a wire safety device of the electric clothes dryer to improve the structural stability and durability of the device.

The present invention for achieving the object of the bar, the guide hole is formed on the left and right walls, respectively, the roller body having a hollow portion in the inside, and is installed in the hollow portion of the roller body is fixed to the roller shaft inserted into the guide hole And a roller configured to guide the wire, a separation prevention shaft installed horizontally with the roller shaft on the upper portion of the roller body to prevent the separation of the wire passing through the roller, and the roller shaft and the separation prevention. Elastic springs installed at both ends of the shaft to be perpendicular to each other to impart elasticity to the rollers, guide brackets fixed to the rollers in such a manner as to surround the rollers inside the roller body, and a grounding piece connected to a lower portion of the guide brackets. Electric laundry dryer including a limit switch installed inside the roller body in the installed state Following constitutes a safety device.

In one embodiment, the wire guide portion formed with a wire withdrawal hole is installed on one side of the roller body to guide the wire passing through the roller.

In one embodiment, the fixing bracket is extended from one side of the roller body is the limit switch is installed on the inner side.

In one embodiment, the guide bracket is a sliding protrusion formed at each of the lower end, the sliding protrusion is inserted into the guide groove formed in the lower end of the roller body is to be elevated together with the roller.

In one embodiment, the guide bracket is to lower the ground piece connected to the limit switch while descending with the roller.

As described above, according to the wire safety device of the electric laundry dryer according to the present invention, the structure of the wire safety device can be improved to guide the wire in a stable state and at the same time prevent the wires from being entangled and entangled. The limit switch for controlling the motor of the safety device can be installed inside the safety device to improve the structural stability and durability of the device, and the function of the wire safety device can be improved to provide more convenience to the user.

1 is a state diagram showing an electric laundry dryer according to the prior art,
Figure 2 is a perspective view showing a wire safety device of the electric clothes dryer according to the present invention,
3 is a perspective view showing an operating state of the wire safety device according to the present invention,
4 is a front view showing a wire safety device according to the present invention,
Figure 5 is a side view showing a wire safety device according to the present invention,
6 is a side view showing the operating state of FIG.
Figure 7 is a state diagram showing a state in which the wire safety device of the electric clothes dryer according to the present invention is operated,
8 is a perspective view showing a state in which the wire safety device of the electric clothes dryer according to the present invention is installed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used herein, the singular forms “a,” “an,” and “the” include plural forms as well, unless the phrases clearly indicate the opposite. As used herein, the term "comprising" embodies a particular characteristic, region, integer, step, operation, element, and / or component, and other specific characteristics, region, integer, step, operation, element, component, and / or group. It does not exclude the presence or addition of.

Although not defined differently, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

The embodiment of the present invention described with reference to the perspective view specifically shows an ideal embodiment of the present invention. As a result, various variations of the illustration, for example variations in the manufacturing method and / or specification, are expected. Thus, the embodiment is not limited to any particular form of the depicted area, but includes modifications of the form, for example, by manufacture. For example, the regions shown or described as being flat may have characteristics that are generally coarse / rough and nonlinear. Also, the portion shown as having a sharp angle may be rounded. Therefore, the regions shown in the drawings are only approximate in nature, and their shapes are not intended to show the exact shapes of the regions, and are not intended to narrow the scope of the present invention.

Referring to the wire safety device of the electric clothes dryer according to the present invention with reference to Figures 2 to 4, the wire safety device 1 is largely the roller body 10 and the roller 20 and the separation prevention shaft 30 and It is made of an elastic spring 40 and the guide bracket 50 and the limit switch 60 to prevent the wire of the electric clothes dryer from being separated or tangled.

That is, the roller body 10 of the wire safety device 1 has a hollow portion inside the guide hole 11 is formed in each of the left and right walls, the roller 20 is the hollow portion of the roller body 10 It is installed on the roller shaft 21 is inserted into the guide hole 11 and is to be able to guide the wire, the separation prevention shaft 30 is the roller shaft on the top of the roller body 10 It is installed to be horizontal to 21 to prevent the separation of the wire passing through the roller 20.

In addition, the elastic spring 40 is installed perpendicular to both ends of the roller shaft 21 and the separation prevention shaft 30 to impart elasticity to the roller 20, the guide bracket 50 is The roller body 10 is fixed to the roller 20 in the form of wrapping the roller 20 inside the roller body 10, and the limit switch 60 has a ground piece 61 at the lower portion of the guide bracket 50. It is installed inside the roller body 10 in a connected state.

Here, in the case of the roller shaft 21 for installing the roller 20, the shaft guide 22 is installed on the roller shaft 21 portion protruding to the outside through the guide hole 11, the shaft guide Reference numeral 22 is a cylindrical body larger in diameter than the roller shaft 21.

In addition, the roller 20 of the wire safety device 1 is installed in a form in which the guide bracket 50 forming a U-shape surrounds the lower portion of the roller 20 assembled with the guide bracket 50. The roller body 10 forming a U-shape on the outside is to be assembled.

On the other hand, the limit switch 60 constituting the wire safety device 1 is installed inside the roller body 10, according to the ground or short circuit of the ground piece 61 connected to the limit switch 60 By controlling the driving of the motor, which is the driving device of the electric clothes dryer, the ground piece 61 of the limit switch 60 is in close contact with the lower end of the guide bracket 50.

Therefore, the ground piece 61 of the limit switch 60 is to be grounded or short-circuited while moving with the guide bracket 50 as the roller 20 rises or falls to control the operation of the motor.

In addition, a wire guide part 70 having a wire withdrawing hole 71 is installed at an upper side of the roller body 10 to guide the wire passing through the roller 20.

Here, when the structure of the wire safety device (1) of the electric clothes dryer is operated with reference to Figures 5 and 6, the fixing bracket 80 is extended from one side of the roller body 10 to the inner surface The limit switch 60 is installed, and the limit switch 60 installed inside the roller body 10 as described above is fixed to the ground piece 61 in contact with the lower end of the guide bracket 50.

In addition, the guide bracket 50 assembled to the roller 20 has sliding protrusions 51 formed at its lower end, and the sliding protrusion 51 has guide grooves formed at the lower end of the roller body 10. 12 is inserted into and lifted with the roller 20, and the guide bracket 50 is lowered with the roller 20 while lowering the ground piece 61 connected with the limit switch 60. will be.

Therefore, as the guide bracket 50 is lowered or raised together with the roller 20, the grounding piece 61 connected to the limit switch 60 is lowered or raised to ground the ground piece installed at the limit switch 60. The 61 is to be contacted or not to send a signal to the motor.

On the other hand, when the operation state of the wire safety device 1 will be described in more detail with reference to Figure 7, the wire safety device (1) is the laundry hanger rod is normally when winding the forward / reverse rotation of the wire (2) by the drive device The wire 20 is guided by the roller 20 so as to move up and down. In this case, the load of the clothes hanger rod transmitted to the wire 2 as the wire 2 is guided by the roller 20 is performed. The roller shaft 21 is lowered to the lower side by the guide hole 11 by the. At the same time, the elastic spring 40 fixed to the release preventing shaft 30 and the roller shaft 3, respectively, is developed, and the grounding piece of the limit switch 60 in contact with the guide bracket 50 is also lowered. 61 is placed in a short circuit state.

When the hanger rod is caught by an obstacle in the above state, as the load of the hanger rod acting on the wire 2 is released, the roller shaft 21 is moved by the restoring force of the elastic spring 40. The upper end of the roller 20 is provided with an anti-separation shaft 30 in the upper portion of the roller 20 so that the wire 2 accommodated in the groove of the roller 20 is fixed by the anti-separation shaft 30. ) Is prevented from moving.

That is, the wire safety device 1 may block the movement of the wire 2 as the wire 2 is fixed by the departure prevention shaft 30, so that the wire 2 is the roller 20 and the roller body ( 10) can prevent tangling phenomenon.

Here, the wire safety device (1) of the electric clothes dryer, as shown in Figure 8, the wire safety device (1) is installed inside the electric clothes dryer body (3) installed on the ceiling of the veranda, the wire safety A wire 2 is installed to pass the device 1, and a bellows 4 which is lifted and lowered by the operation of the wire 2 is installed in the vertical direction.

Therefore, when the wire 2 is entangled during the lowering of the bellows 4, the roller 20 of the wire safety device 1 is prevented from being detached from the roller 20. At the same time as fixing the wire (2) the ground piece (1) of the limit switch 60 is grounded as it moves upward with the guide bracket (50) to cut off the power applied to the motor.

Therefore, as described above, the wire safety device 1 of the electric clothes dryer has structural stability, and thus, the separation and entanglement of the wire safety device 1 can be prevented in advance.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, but can be variously modified and embodied within the scope of the claims for utility model registration, the detailed description of the design, and the accompanying drawings. It is of course within the scope of the present invention.

1: wire safety device 2: wire
3: electric clothes dryer body 4: bellows
10: roller body 11: guide ball
12: guide groove 20: roller
21: roller shaft 22: shaft guide
30: departure prevention shaft 40: elastic spring
50: guide bracket 51: sliding projection
60: limit switch 61: grounding piece
70: wire guide portion 71: wire lead-out hole
80: fixing bracket

Claims

The roller body having a hollow portion inside the guide hole is formed in each of the left and right walls,
A roller installed in the hollow part of the roller body and fixed to a roller shaft inserted into the guide hole to guide the wire;
An anti-separation shaft installed horizontally with the roller shaft on an upper portion of the roller body to prevent the detachment of the wire passing through the roller;
An elastic spring installed perpendicularly to both ends of the roller shaft and the separation prevention shaft to impart elasticity to the roller;
A guide bracket fixed to the roller in a form of surrounding the roller in the roller body;
The wire safety device of the electric clothes dryer comprising a limit switch installed inside the roller body in a state where the ground piece is connected to the lower portion of the guide bracket.

The method of claim 1,
Wire safety device of the electric clothes dryer, characterized in that the wire guide portion formed with a wire withdrawal hole is installed on one side of the roller body to guide the wire passing through the roller.

The method of claim 1,
A fixed bracket extends from one side of the roller body so that the limit switch is installed on the inner surface of the electric clothes dryer wire safety device.

The method of claim 1,
The guide bracket has a sliding protrusion formed at each lower end of the guide bracket, the sliding protrusion is inserted into the guide groove formed in the lower end of the roller body is lifted with the roller, characterized in that the wire safety device of the electric clothes dryer.

The method of claim 1,
The guide bracket is lowered with the roller while the wire safety device of the electric clothes dryer, characterized in that to lower the ground piece connected to the limit switch.