KR200240418Y1 - device for ascent and descent of bed - Google Patents

Abstract

The present invention prevents wires from being damaged by winding the wires on the drum without overlapping each other, prevents flow by mounting the drum and motor horizontally and stably, and prevents the flow, and supports the wires firmly and elastically so that the wires are separated from the rollers. It can be rolled up smoothly without pressure, and it can withstand the friction of the wire and maximize the distribution of the force transmitted to the wire by spaced apart the support roller with the enlarged distance to the maximum distance. Lifting device of adjustable lift bed that minimizes the center deviation of the guide roller to prevent wear of the fitting hole of the door and simplify the structure of the fixing part.

Description

Device for ascent and descent of bed

The present invention relates to a lifting device of a variable elevator furniture that can effectively utilize the narrow interior space by installing to raise and lower the furniture, such as a bed on one side of the oppositely configured furniture.

Generally, furniture such as a desk, a bed, a display case, a dining table, and a storage cabinet, which are used for reading a book or writing in a chair, are made of wood or steel, and are installed to be horizontally positioned at a predetermined position on an indoor floor.

Such furniture is installed in the state occupying the interior space, and not only narrows the residential space, but especially in the housing for the common people who use the bedroom, study room, and rest space while sleeping, eating, resting, etc. There was a problem that caused interference in the living by interference with the installed furniture.

In order to solve the above problems, it has been filed in Korean Patent Application No. 94-7201 (elevated furniture).

As shown in FIG. 1, the elevating-variable furniture has a pair of rear elevating guide rails 12 installed on both sides of the rear wall guide rails 11 in the interior space facing each other and on both sides of the rear wall to which the two side walls are connected. ) Is installed side by side, and the vertical support plate 131 is vertically connected to the front of each of the rails (11) (12), the horizontal support plate 132 for supporting the bottom of the furniture 14 in the center of the front ) Is provided with a lifting member 13 is provided integrally.

Looking at the operation process of the adjustable elevator furniture configured as described above, in the process of raising the lowered furniture 14 to secure the indoor space, the lifting member (not shown) is the lifting member connected to the end of the wire is lowered (13) is raised to a position close to the ceiling of the room. At this time, the elevating member 13 is raised along the guide groove 121 formed vertically in the front center of the rails 11 and 12 in a state in which the rear surface of the vertical support plate 131 is close to the front surface of the rail, and thus the horizontal support plate 132. The interior space is secured by stopping the furniture 14 mounted on the cabinet at a position close to the ceiling.

Then, looking at the process of descending to use the furniture 14, which is raised through the above process, the wire of the lifting means is raised to lower the lifting member 13 connected to the end thereof to an appropriate height. At this time, the elevating member 13 is lowered horizontally along the guide groove 121 formed vertically in the front center of the rails 11 and 12 with the rear surface of the vertical support plate 131 approaching the front of the rail as in the case of ascending. The furniture 14 mounted on the support plate 132 is lowered to a position suitable for use and then stopped. Thus, the furniture 14 lowered to an appropriate position can be used.

By the way, the conventional elevating-variable furniture as described above, there is a problem that the horizontal support plate of the elevating member is inclined because the wire is rotated and fixed when the wire of the elevating means is tangled, the structure of the elevating means is complicated, the production cost There was a problem that the economical efficiency is low.

In order to solve the problems of the conventional elevating-variable furniture as described above, the present inventors are provided with two sets of rollers supporting the wires to prevent the wires from leaving the rollers, and to reduce the production cost by simplifying the structure of the lifting means. In order to improve the economics, and to design the lifting device of the elevating-variable furniture that can easily lift up and down the furniture fixed to the fixed part has been filed in Korea Patent Application No. 1999-30688.

The first application lifting device, as shown in Figures 2 and 3, in the lifting variable furniture used to transfer the bed (B) up and down, the bracket 151 for supporting and fixing the motor (M) is configured The drum 152 is provided with a plurality of fixing grooves 152a on the outer circumference to fix the wire W on one side of the motor M, and a round 152b formed at the inlet of the fixing groove 152a. The configured driving unit 15; In order to maintain the wire W connected to the drum 152 of the driving unit 15, two first rollers 162 having a fitting groove 162a through which the wire W penetrates are provided at an outer circumference thereof. A tension holding unit (16) comprising a tubular body and an outer body (161) surrounding the first roller (162); The wire (W) connected to the tension holding unit (16) is provided through the tension holding unit (16) so as to support the wire (W) by forming a supporting groove on the outer circumference and supporting the wire (W). A first support roller 172 having a first support groove for supporting the wire W is provided on the outer circumference and provided in a pair of two, and a wire is provided at a lower portion facing the first support roller 172. A second support roller 173 having a second support groove for supporting (W) is provided on the outer circumference thereof and constitutes a set of two, and a wire (2) is provided at the other center of the first and second support rollers 172 and 173. A third support roller 174 having a third support groove for supporting W) is provided on the outer circumference thereof and constitutes a set of two, and surrounds the first, second and third support rollers 172, 173 and 174. A support 17 attached to one side of the furniture, the support 17 being configured with a fourth support roller 175 at a position spaced apart from the support plate 171 by a predetermined distance; The lifting guide bar 181 is fixed to the transfer roller 183 and the lifting guide rod 181 is guided so as to rise and fall by the wire (W) to guide the rise and fall according to its operation. Is configured, the lifting hole 182 is provided with a fitting hole (182a) to the inside so that the lifting guide bar 181 is fitted, the one side of the lifting hole 182 is provided in the third support roller 174 A lifting guide unit 18 having a transfer roller 183 provided at an outer circumference of the transfer groove wrapped around the wire W; Attached to one side of the elevating guide portion 18, the inner side is formed through the fixing portion 19 is provided with a fixing piece 191 on both sides on one side.

However, in the above-described application raising and lowering device configured as described above, the bracket 151 on which the motor M is mounted is vertically installed, so that the motor M sags to one side due to its own weight. When the motor (M) is sagging in this manner, the wire (W) is wound and the load generated when the bed is not pulled and the bracket (151) fixed to the wood flows so that the power of the motor (M) is not transmitted smoothly. There is this.

In addition, since the wires W are wound on the drum 152 so that they overlap each other, a wire W formed by weaving a thin iron core by mutual frictional force may be broken, and when the wires W are broken, the bed may fall to the floor. There is a flaw.

And the tension holding unit 16 is configured to pass the wire (W) to the groove formed between the pair of rollers simply to guide the wire (W) drawn into the drum 152 side, the stretched wire (W) It is not possible to perform the function of maintaining the tension, so that the wire W, which has been stretched when driving the bed, is separated from the pulleys or the grooves of the rollers, thereby failing to wind the wire smoothly.

In addition, the tension holding unit 16 is configured to install a plurality of rollers facing up, down, left and right in a limited narrow space on one side, and configured to distribute the force transmitted to the wire by sequentially passing the wires (W) through the rollers. This is a defect that the gap between each roller is short and the diameter is small, the force distribution is insufficient, and the metal bearing used as the roller and the wire is continuously rubbed to break the wire.

And the transport roller 183 is provided on the outside spaced apart from the lifting guide bar 181 of the lifting guide 18 to guide the vertical lifting operation of the bed (B) while the wire (W) is wound around the transport roller (183) When lifting, the lifting hole 182 surrounding the lifting guide bar 181 is inclined toward the lifting guide bar 181, an eccentric phenomenon occurs. When the lifting hole 182 ascends in the state eccentrically to the lifting guide bar 181, the lifting guide bar 181 and the fitting hole 182a is rubbed and one side of the fitting hole 182a is worn out. Therefore, shaking and noise are generated severely during the lifting operation, there is a defect that requires a lot of power due to the load generated during friction.

The present invention has been made in view of the above-mentioned conventional defects, and its object is to prevent the wires from being damaged by winding the wires on the drum without overlapping each other, and to flow the drum and the motor in a stable sense horizontally. The wire is firmly and resiliently supported so that the wire can be wound smoothly without deviating from the roller, and the support roller which can withstand the friction of the wire and the diameter is enlarged and separated by the maximum distance It is a lifting type adjustable furniture that maximizes the distribution and minimizes the center deviation of the guide rollers of the lifting and lowering guides, which are raised and lowered around the lifting guide rods, to prevent wear of the fitting holes and simplify the structure of the fixing part. To provide a lift guide device.

The present invention for achieving the above object is a lifting device of the adjustable elevator furniture, the rotational force of the motor can be transmitted by the gear method and the first and second wires are wound on both sides of the drum in the horizontal direction, respectively, connected by gears A drive unit which horizontally mounts a motor and a drum inside the center part; A first pulley configured to connect the first wire connected to one side of the drum to one side of the bed by passing the rear outer edge and the rear inner edge at right angles in a horizontal direction; A second pulley configured to be connected to the other side of the bed by passing the second wire connected to the other side of the drum at right angles in the horizontal direction through the front outer edge and the front inner edge: horizontally in the center of one side of the first and the second pulley respectively; A first and second tension holding parts configured to be installed so that the spring is stretched when the wire is loosened and the wire is pulled inward, and the spring is tensioned by the force when the wire is unfolded; The first installation is installed on both sides of the bed and the lifting guide roller is built into the inside of the hatch that surrounds the lifting guide rod supporting the vertical rise and fall of the bed, and the side of the hatch in which the lifting guide roller is built is fixed with a bracket. , It is characterized by comprising two lifting guides.

1 is a block diagram of a conventional lifting adjustable furniture

Figure 2 is a plan view of a prior application lifting device

Figure 3 is an enlarged front view of the driving unit side of the prior application lifting device

4 is a plan view of the present invention

5 is a plan configuration diagram of the subject innovation drive unit

6 is a plan configuration diagram of the tension holding unit of the present invention

7 is a configuration diagram of the present invention lifting guide portion,

a is a perspective view,

b is a sectional view along the A-A line of a.

8 is a front view showing an operating state of the present invention,

a is the rising state of the bed,

b is the lowered state of the bed.

<Explanation of symbols for the main parts of the drawings>

20: drive unit 21: motor

22: drum 23: bracket

30: first pulley portion 40: second pulley portion

50: tension holding unit 60: lifting guide

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

4 is a plan configuration diagram of the present invention, Figure 5 is a plan configuration diagram of the drive unit of the present invention, Figure 6 is a plan configuration diagram of the tension holding unit of the present invention, Figure 7 is a configuration diagram of the lifting guide of the present invention.

Lifting device of the adjustable variable bed to which the present invention is applied, the storage cabinet (P1) (P2) having a storage space while supporting the lifting operation of the bed (B) on both sides of the bed (B) is provided.

In such a lift-type bed, the present invention can receive the rotational force of the motor 21 by the gear method, the wires are wound on both sides of the drum 22 in the horizontal direction, respectively, the motor 21 and the drum A driving unit 20 having horizontally mounted 22 inside the central portion of the first cabinet P1 is configured, and the first wire W1 connected to one side of the drum 22 is rearward of the first cabinet P1. A first pulley unit 30 configured to pass through the outer edge and the rear inner edge at right angles in the horizontal direction is connected to one side of the bed, and includes a second wire W2 connected to the other side of the drum 22 in the first cabinet ( A second pulley part 40 configured to pass through the front outer edge of P1 and the front inner edge of the second cabinet P2 at right angles in the horizontal direction is connected to the other side of the bed B, wherein the first and second Spring is installed in the center of one side of the pulleys 30, 40, respectively, when the wire is loose When the wire is stretched and pulled inwards, and the wire is unfolded, the first and second tension holding parts 50 and 50 'are configured to tension the spring by the force, and the bed B is installed on both sides of the bed B. The first and second elevating guides 60 and 60 'having an elevating guide roller 63 inside the elevating opening 62 surrounding the elevating guide rod 61 supporting vertical rising and falling of It is made up of, which will be described in more detail as follows.

The drive unit 20 is formed on the outer circumferential surface of the cylindrical body 221 through which the shaft hole 221a is formed in the center, respectively, and forms a guide groove 222 spirally outward from the center C, and the body 221. The drum gear 223 is fixed to the center of the drum, and both sides of the body 221 are configured with a drum 22 coupled with a support plate 224 having a diameter larger than the outer diameter of the body 221 so as to prevent separation of the wire.

In addition, the motor shaft 211 is coupled to the drum gear 223 is coupled to the motor gear 211 which transmits the rotational force. The motor 21 and the drum 22 are mounted on one bracket 23 such that the gears 211 223 are coupled to each other to maintain a horizontal state, and the bracket 23 is upper part of the first cabinet P1. Install in the center of one side.

The first pulley part 30 builds up the pulley 1 31 at a position corresponding to the rear side of the drum 22 and builds the pulley 2 32 at a corner corresponding to the rear of the pulley 1 31. And the pulley 3 (33) is laid in the inner edge corresponding to the pulley 2 (32) horizontally. Now, each pulley of the pulley unit 30 supports the first wire W1 wound on the rear side of the drum 22 in order to be connected to one side of the bed B.

The second pulley unit 40 builds up the pulley 1 41 at a position corresponding to the front side of the drum 22 and builds the pulley 2 42 at a corner corresponding to the front of the pulley 1 41. The pulley 3 (43) is laid at the inner edge of the second cabinet (P2) horizontally corresponding to the pulley 2 (42), and the pulley 4 (44) is laid at the rear of the pulley 3 (43). Each pulley of the second pulley portion 40 supports the second wire W2 wound on the front side of the drum 22 in order to be connected to the other side of the bed B.

The tension holding unit 50 is provided with a front end of the rectangular fixing plate 51 and guides 52 and 53 having a central hole through the inner side of the rectangular fixing plate 51, and a fixing table 54 at the rear end of the supporting plate 224. ). In addition, a moving member 55 having a roller 552 is provided at the front end of the rod 551 to pass the rear end of the rod 551 through the through holes of the guides 52 and 53 so that the rear end of the rod 551 is fixed. To the tension spring (56). These tension holding parts 50, 50 'are formed between the pulleys 1, 2 (31) and 32 of the first pulley part 30 and the pulleys 1, 2 (41) and 42 of the second pulley part 40. The front end roller 552 is mounted so as to face the outside, and the wires are passed through the roller 552, respectively.

The elevating guide portion 60 is mounted at a predetermined position on the side of the bed (B) and vertically elevates the elevating guide roller (63) to the inner side of the elevating opening (62) which is raised and lowered along the pair of elevating guide rods (61). To be installed. The lifting guides 60 and 60 'are respectively configured at the position biased forward from the center of one side of the bed B and the position biased rearward from the center of the other side of the bed B, respectively.

In addition, a pair of turning rollers 65 are rotatably installed so that the wires W passing through the last pulley of each pulley part at right angles to the lifting guide roller 63 are installed, and the lifting guide roller 63 is installed. Fixing the end of the wire (W) passing through it is provided with a fixing table 66 mounted on the upper portion perpendicular to the hatch (62).

Next will be described in detail the operation process of the subject innovation lifting device configured as described above.

Referring to the process of raising the bed installed as described above, as shown in Figure 8a, first, when the motor (M) to which the power is applied to the forward rotation, the rotational force is connected to the drum gear 223 connected to the motor gear 211 It is transmitted to rotate the drum 22 in one direction. At this time, the first wire (W1) and the second wire (W2) is wound in two divided states without overlapping each other along the guide grooves 222 formed spirally on both outer peripheral surfaces of the drum (22).

The first wire W1 and the second wire W2 wound in the nutrient state on both sides of the drum 22 are formed of the first pulley part 30 and the second pulley part 40 formed at each corner of each cabinet. Supported by each pulley to the lifting guide rod 61 while rotating the lifting guide roller (63) of the first lifting guide 60 and the second lifting guide (60 ') in the state that the maximum pulling force is doubled By raising the supported hatch 62 vertically, the bed B to which the hatch 62 is integrally fixed rises vertically. At this time, the hatch 62 is a distance between the center of the elevating guide bar 61 and the elevating guide roller 63 is short, so that the load due to the eccentricity does not occur and is smoothly guided.

In the process of raising the bed as described above, the first and second wires W1 and W2 pull the movable member 55 mounted on the spring 56 of the first and second tension holding units 50 and 50 '. It will be level.

When the limit switch L1 provided at the upper part of the lifting hole 62 contacts the upper end of the elevating guide bar 61 in the state where the bed B is raised, the power is cut off from the motor 21 to determine the rising operation. . In such a stopped state, a desk or a wardrobe attached to the furniture can be used, thereby securing an indoor space.

And the process of descending to use the bed (B) which is raised to the upper portion of the indoor space to use the bed, as shown in Figure 8b, first, when the motor (M) is powered up reversely , The rotational force is transmitted to the drum gear 223 connected to the motor gear 211 to rotate the drum 22 in the opposite direction at the time of raising. At this time, the first wire W1 and the second wire W2 wound on both sides of the drum 22 are supported by the pulleys of the first pulley part 30 and the second pulley part 40, and are released. By rotating the lifting guide rollers 63 of the first lifting guide 60 and the second lifting guide 60 'by lowering the lifting holes 62 supported on the lifting guide bars 61 vertically, the lifting holes 62. Is fixed to the bed (B) is vertically lowered.

In the process of lowering the bed as described above, the springs 56 of the first and second tension holding parts 50 and 50 ′ stretch the first and second wires W1 and W2 to pull the movable member 55 inward. It will maintain the tension of.

When the limit switch (L2) provided in the lower portion of the lifting hole 62 in contact with the lower end of the elevating guide bar 61 in the state in which the bed (B) is lowered, the power is cut off to the motor 21 to determine the lowering operation. .

As described above, the present invention allows the wires to be wound on the drum without overlapping each other to prevent the wires from being damaged, to prevent the flow by mounting the drum and the motor horizontally and stably to prevent the flow, and to support the wires firmly and elastically. It can be smoothly wound without deviating from the roller, and it can withstand the friction of the wire and maximize the distribution of the force transmitted to the wire by separating the support roller with the enlarged distance to the maximum distance, and raise and lower the center of the lifting guide rod. By minimizing the center deviation of the guide roller of the hatch to prevent the fitting hole of the hatch to wear and to have the advantage of simplifying the structure of the fixing portion.

Claims (3)

In the elevating device of the elevating variable bed having a storage cabinet (P1) (P2) having a storage space while supporting the lifting operation of the bed (B) on both sides of the bed (B), The rotational force of the motor 21 is transmitted by a gearing method, and wires are wound on both sides of the drum 22 in a horizontal direction without overlapping each other, and the motor 21 and the drum 22 are wound in the first cabinet P1. A driving unit 20 mounted horizontally inside the central portion of the vehicle; The first pulley unit 30 configured to be connected to one side of the bed by passing the first wire W1 connected to one side of the drum 22 at right angles in the horizontal direction through the rear outer edge and the rear inner edge of the first cabinet P1. )Wow; The second wire W2 connected to the other side of the drum 22 passes through the front outer edge of the first cabinet P1 and the front inner corner of the second cabinet P2 at right angles in the horizontal direction to the other side of the bed B. A second pulley unit 40 configured to be connected to the second pulley unit; Installed in the horizontal direction at the center of one side of the first and second pulleys 30 and 40, respectively, when the wire is stretched, the spring is stretched to maintain the tension by pulling the wire inward, and the spring is pulled out by the force. Tension holding portions 50 and 50 'configured to be tensioned; Elevation guide is installed on both sides of the bed (B) is built up and down the lifting guide roller (63) in the inside of the lifting hole (62) surrounding the lifting guide bar 61 for supporting the vertical rise and fall of the bed (B) Lifting device of the elevating variable bed, characterized in that consisting of (60) (60 '). The method of claim 1, The drive unit 20 is formed on the outer circumferential surface of the cylindrical body 221 through which the shaft hole 221a is formed in the center, respectively, and forms a guide groove 222 spirally outward from the center C, and the body 221. A drum 22 having a drum gear 223 fixed to the center thereof, and a support plate 224 having a diameter larger than an outer diameter of the body 221 on both sides of the body 221 so as to prevent the wire from being separated; The motor shaft 211 is coupled to the rotating shaft of the motor 21 to couple the motor gear 211 which transmits the rotational force, and the bracket 21 to maintain the horizontal state of the motor 21 and the drum 22. Lifting device of the lifting type adjustable bed, characterized in that attached to). The tension holding unit 50, 50 'of claim 1, The front end of the rectangular support plate 224, and guides 52 and 53 having a central through hole in the inner side spaced apart from the front end, the rear end of the support plate 224 is provided with a fixing table 54, rod 551 A moving member 55 having a roller 552 is provided at the front end of the moving member 55, and the rear end of the rod body 551 of the moving member 55 is passed through the through hole of the guides 52 and 53, and the rear end of the moving member 55 is fixed. 54 between the pulleys 1, 2 (31) and 32 of the first pulley portion 30 and between the pulleys 1 and 2 (41) and 42 of the second pulley portion 40. Elevation device of the elevating variable bed, characterized in that configured in.