KR101856176B1

KR101856176B1 - A folding device of collapsible bed operate cranktype

Info

Publication number: KR101856176B1
Application number: KR1020150181887A
Authority: KR
Inventors: 윤창한
Original assignee: 윤창한
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2018-05-10
Also published as: KR20170073802A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a retractable bed folding device operated by a crank method, and more particularly, to a foldable bed folding device which is folded and folded by a folding device operated by a cranking method to efficiently utilize a narrow- The first and second crank arms located on both sides of the guide rod are spaced apart from each other by a predetermined distance without being closely attached to both ends of the guide rod, , The two crank arms can be folded and folded in such a manner that they always return after the crank arm is operated in the forward or reverse direction.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a collapsible bed operated crank type,

In order to efficiently utilize a narrow space, a crank plate of the folding device is provided with a guide rod so as to be able to automatically and manually perform an operation of folding and unfolding a bed accommodated in a cabinet by a folding device operated by a crank system The first and second crank arms, which are located on both sides of the guide rod, are moved from a position spaced apart by a predetermined distance without being closely attached to both ends of the guide rod, and then the first and second crank arms are operated in the forward or reverse direction. The present invention relates to a retractable bed folding device which is folded and folded and operated by a crank method.

Generally, according to the recent urbanization, a lot of houses and buildings are being built in a narrow area, and the inside of the building is formed with a narrow area structure as land prices rise.

In other words, since a room of a student room or a worker 's boarding house, a one-room room, an office room, etc. is formed with a narrow area, it is very difficult to provide a furniture such as a bed or a desk or a closet in a narrow area.

In order to improve such deterioration, a built-in bed or a folding bed, a bed, a storage room with a bookcase and a wardrobe, and a space for a bed in a part of the storage space are formed. By folding, the bed is folded during the day when the bed is not used, so that the space occupied by the bed is accommodated more efficiently.

Therefore, the retractable bed is effective for efficiently arranging the space in a domestic apartment or a room. In order for the foldable bed to be folded or folded to be accommodated in the opening, the user lifts or falls the bed.

However, there is a problem that the user needs to fold the bed directly in the storage space by accommodating the bed having a large load in the storage space.

In addition, there is a problem that the user quickly spreads by the load during the process of directly opening the bed, and collides with the floor to generate an impact.

In addition, some of the beds use tension means made of springs so that they can be slowly spread in the process of folding, but the elasticity of the springs is lowered in the repeated folding process.

In addition, the bed is made up of single or double folded beds in the cabinet. If the tension is not properly adjusted according to the load of the bed during the spreading process, the bed is not folded unfolded or the folded bed is arbitrarily folded. There is a problem to discard.

Therefore, in order to solve the above problems, Patent Registration No. 1424169 entitled "Retractable Bed Folding Device"

In the above-mentioned patent, the suspensions are fastened in one direction of the rotation shaft inserted into the rotary holes formed in the housing to operate the folding operation.

However, since the above-mentioned patent has a suspension only in one direction of the rotating shaft, when the rotating shaft inserted in the rotating hole of the housing rotates, only one side is worn and the rotating shaft and the rotating shaft are loosened to fold the bed. There arises a problem in that it is not smoothly performed.

That is, the suspension is installed only on one side of the rotary shaft, and the rotary groove of the rotary shaft or the rotary shaft is worn by the opening or closing operation of being pulled or in place.

In addition, since the suspension is installed on only one side of the rotary shaft, the force is not balanced on both sides of the rotary shaft, and the direction of one side is biased, so that the tension of the suspension is easily lowered during the rebounding operation. The problem of unfolding or not folding may occur.

In the conventional retractable bed, the folding device is used by attaching the automatic or manual type. In the case of the automatic type, the driving shaft of the motor and the rotating shaft for rotating the bed are coupled by a method in which the gears are engaged with each other. Since the gears are engaged, there is a problem that the user can not manually fold or unfold the motor until the motor is repaired.

That is, there is a problem that conventional automatic and foldable retractable beds can not be used both automatically and manually.

Korean Patent Registration No. 1424169 "Retractable Bed Folding Device"

In order to solve the above problems, the retractable bed folding device of the present invention is intended to be able to fold or fold a bed in a cabinet, and to automatically or manually use the folding bed in accordance with the user's selection.

In addition, a suspension, a shock absorber, and a spring are mounted to prevent the bed load from being unfolded or folded quickly during the opening and closing operation of folding the bed at the cabinet, .

Means for Solving the Problems In the retractable bed folding device of the present invention,

A crankshaft fixed to the storage case by being inserted into the housing and inserted into the housing so as to be inserted into the housing so as to be inserted into the housing in a crossed manner, A crank plate having a coupling hole formed therein and having a guide rod formed by a predetermined length along a circumference at an inner side from an edge thereof, first and second motors disposed opposite to both sides of the crank plate, and a first crank arm A first crank arm provided on one side of a guide rod formed on the crank plate and rotating in a forward direction and a second crank arm provided on the second motor so as to be inserted into the other side of the guide rod formed on the crank plate and rotated in the reverse direction And a crank-type retractable bed folding device composed of a second crank arm The.

As described above, according to the present invention, since the first and second crank arms are prepared and started in a state of being separated from both ends of the guide rod formed on the crank plate, the first and second motors In case of failure, it can be used automatically and manually, thus providing convenience to the user.

Further, when the bed stored in the cabinet is folded or unfolded, the retractable bed folding apparatus is pushed and fixed by a shock absorber and a suspension, and conversely, when the interference is canceled, the restoration bed apparatus is stably used by returning to the original state, thereby improving durability.

Further, in the present invention, when the suspension is clamped to both sides of the crankshaft, when the force is not balanced during the opening and closing operation, the auxiliary spring is tightened to maintain the balance of force.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a storage type bed folding apparatus according to the present invention. FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a front view showing the crank plate of the present invention.
4 is a perspective view showing a state where first and second crank arms are coupled to a crank plate of the present invention.
5 is a perspective view showing a state where first and second crank arms and a crankshaft are coupled to a crank plate of the present invention.
FIG. 6 is a perspective view showing a housing partially cut away in the retractable bed folding device of the present invention. FIG.
7 is a perspective view showing a state in which a shovel is joined in the storage type bed folding apparatus of the present invention.
8 is a perspective view showing the first and second crank arms and the crankshaft separated from each other in the crank plate of the present invention.
9 is a perspective view showing a state where a suspension is coupled to the storage type bed folding device of the present invention.
10 is a plan view showing the storage type bed folding apparatus of the present invention.
11 is a plan view showing a state where a suspension is engaged in the storage type bed folding apparatus of the present invention.
12 is a plan view showing a state in which a suspension and a spring are engaged in the retractable bed folding device of the present invention.
13 is a front view showing a state in which the first and second crank arms and the crankshaft are coupled to the crank plate of the present invention.
FIG. 14 is a front view showing an operating state of the storage type bed folding apparatus of the present invention. FIG.
15 is a perspective view showing a state in which a bed is folded on a cabinet with the storage type bed folding device of the present invention installed.
16 is a perspective view showing a state in which a bed is opened on a cabinet with the storage type bed folding device of the present invention installed.

In order to achieve the above objects and effects, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a retractable bed folding apparatus according to the present invention, and FIG. 2 is a perspective view showing a folding type bed folding apparatus according to the present invention.

A retractable bed folding device (1) is installed between a bed (18) and a storage box (17) so that the bed (18) stored in the storage box (17) is opened and folded for storage.

The retractable bed folding apparatus 1 can be used automatically or manually and the productivity can be improved by shortening the manufacturing process by assembling the adjusting piece 6 and the fixing piece 7 into the housing 2 in a fitting manner .

In addition, the retractable bed folding device 1 has a crankshaft coupling hole 4 so that the crankshaft 3 can be inserted in a crossed manner on the front and back surfaces in a state that the housing 2 is formed in a box- .

In addition, the adjusting piece 6 is disposed on the left side of the housing 2, and the fixing piece 7 is disposed on the right side thereof.

The adjusting bolt 12 is fitted to the adjusting piece 6 so that tension can be adjusted by tightening and tightening one side of a first suspension 13 coupled to the crankshaft 3.

The crankshaft 3 is coupled to the crankshaft coupling hole 4 so as to intersect with the housing 2 and the left and right ends of the crankshaft 3 are fitted and fixed to the storage box 17.

A crankshaft (5) is fitted to the crankshaft (3) located inside the housing (2).

A coupling hole 4 is formed at the center of the crankshaft 5 so as to be fitted into the crankshaft 3 and a guide rod 21 is formed at an inner side of the rim .

First and second motors (8, 8 ') are installed inside the housing (2) so as to be located on both sides of the crank plate (5).

The first motor 8 is provided with a first crank arm 9 and is inserted into one side of the guide rod 21 formed on the crank plate 5 to rotate in the forward direction and the second motor 8 ' The crank arm 9 'is inserted into the other side of the guide rod 21 formed on the crank plate 5 and rotated in the reverse direction.

The first and second crank arms 9 and 9 'have a structure in which a cylinder rod is inserted and drawn out from a cylinder connected to the first and second motors 8 and 8' The crank plate 5 is rotated in the square or reverse direction by being pushed or pulled by the first and second crank arms 9 and 9 '.

The crank shaft 3 drawn out of the housing 2 is fitted with a fixing block 19, and the fixing block 19 is attached to a cabinet.
Accordingly, the second crank arm 9 'having the second crank arm 9' is inserted into the other side of the guide rod 21 formed on the crank plate 5 and rotated in the reverse direction by the second crank arm 9 ' Both ends of the crankshaft are fixed to the storage space. When the housing is attached to the bottom of the bed, the housing is rotated in the forward or reverse direction by the operation of the first and second crank arms, and the bed is folded or unfolded.

FIG. 6 is a perspective view of a housing folding bed apparatus according to the present invention in which a part of a housing is cut. A rotation hole 22 is formed in a straight line on a bottom surface of a housing 2 located at a lower portion where a crank plate 5 rotates And is prevented from interfering with the bottom of the housing (2) when the crank plate (5) is rotated.

4 is a perspective view showing a state where first and second crank arms are coupled to a crank plate according to the present invention, FIG. 5 is a perspective view showing a state where first and second crank arms are coupled to a crank plate of the present invention, Fig. 10 is a plan view showing a retractable bed folding device according to the present invention. Fig. 13 is a plan view showing the first and second crank arms and the crankshaft, And FIG. 14 is a front view showing an operating state of the storage type bed folding apparatus of the present invention.

(1) A crankshaft (5) is fitted to a crankshaft (3) installed crosswise to the inside of a housing (2), and a guide rod 21, the first and second motors 8, 8 'are positioned so as to face each other in the left-right direction.

The first and second motors 8 and 8 'are located at the left and right ends of the guide rod 21 in a state where the first and second crank arms 9 and 9' are connected to each other.

The first and second crank arms 9 and 9 'located on the guide rod 21 are not located at both ends of the guide rod 21 but are spaced apart from the both ends of the guide rod 21 at regular intervals, The crank arms 9, 8 'are located.

The first and second start and return points 10 and 10 'are designated at positions where the first and second crank arms 9 and 9' are spaced apart from each other in the guide rod 21, The crankshaft 3 and the crankshaft 5 are manually rotated by the user since the crankshaft 9 and the crankshaft 9 do not interfere with each other at the end of the guide rod 21 after the operation of the crankshaft 9 and 9 ' So that it can be used both automatically and manually.

The first and second crank arms 9 and 9 'are pushed and pulled by the bolts and nuts on the guide rod 21.

Therefore, in order to rotate the crankshaft 3 in the forward direction, the cylinder rod of the first crank arm 9 is pulled out by the operation of the first motor 8, When the end of the guide rod is pushed in the positive (right) direction and rotated in the forward direction, the second crank arm 9 'located at the second start and return points spaced apart from the right end of the guide rod interferes with rotation.

The cylinder rod of the first crank arm 9 is restored to the first starting point and the returning point 10 so as not to interfere with the left end of the guide rod 21 and the second crank arm 9 ' (21).

Therefore, when the first motor 8 fails, the first crank arm 9 does not interfere with the left side of the crankshaft 3, so that the user can rotate to the left.

In order to rotate the crankshaft 3 to the left, the second crank arm 9 'is rotated to rotate in the reverse (left) direction from the second start and return point 10' The cylinder rod is pulled in and pulled to rotate the crank plate 5 together with the crankshaft 3 and then rotate to the second start and return point 10 '

Further, the first crank arm 9 rotates and returns to the first start and return points 10 so as not to come into contact with the left end of the guide rod 21 after the crankshaft 3 rotates.

The first and second start and return points 10 and 10 'maintain a distance from both ends of the guide rod 21 and the first and second start and return points 10 and 10' The crank arms 9 and 9 'are positioned and spaced from both ends of the guide rod 21 so that the user can manually rotate the crank plate 5 and the crank shaft 3 in the forward and reverse directions.

7 is a perspective view showing a state in which a shovel is joined in the storage type bed folding apparatus of the present invention.

An absorber 14 is connected to one end of the crankshaft 3 of the present invention to guide the folding and unfolding of the bed 18 in the cabinet 17 smoothly.

The shock absorber 14 interlocks with the rotational direction of the crankshaft 3 rotating in the forward and reverse directions to load the cylinder rod into and out of the cylinder of the shock absorber 14, When the bed 18 is folded and housed in the cabinet 17, the shock absorber 14 is prevented from colliding with the bottom of the cabinet 14 when the bed 18 is folded and stored, The cylinder rod is drawn out from the cylinder of the cylinder head 18 and is drawn along the cylinder rod to be drawn out, so that the bed 18 is folded by the rotation and housed in the cabinet.

FIG. 8 is a perspective view showing the first and second crank arms and the crankshaft separated from each other in the crank plate of the present invention, FIG. 9 is a perspective view showing a state where the suspension is coupled to the storage- FIG. 12 is a plan view showing a state in which a suspension and a spring are engaged in the retractable bed folding device of the present invention. FIG. 12 is a plan view showing a state in which a suspension is coupled to an inventive retractable bed folding device.

The first and second suspensions (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 13 'are respectively inserted and then the bracket is inserted into the crankshaft 3 and then one side of the first and second suspensions 13 and 13' is fastened to the bracket and then the first suspension 13, And the other end of the second suspension 13 'is fixed to the adjustment bolt 12 located at the center of the adjustment piece 6 coupled to the left end of the housing 2 to adjust the tension, And the other end is fastened to the crankshaft 20 to disperse and support the load of the bed 18 during operation of the crankshaft 3 so that the bed 18 can be stably folded and unfolded.

15 is a perspective view showing a state in which the bed 18 is folded on the cabinet 17 with the storage type bed folding apparatus 1 of the present invention installed and the first suspension 13 is fastened to the left side of the crankshaft 3 A spring 15 is coupled to the right side of the crankshaft 3 to disperse and support the load of the bed 18 so that the bed 18 can be stably folded and unfolded.

16 is a perspective view showing a state in which the bed 18 is opened in the cabinet 17 with the storage type bed folding apparatus 1 according to the present invention installed thereon. The retractable bed folding apparatus 1 operates in a crank mode, The bed 18 unfolded in the cabinet 17 is folded into the cabinet 17 when the cabinet 5 rotates in the normal direction and conversely the bed 18 is unfolded in the cabinet 17 when the crank plate 5 is rotated in the opposite direction.

The first and second start and return points 10 and 10 'are formed on the guide rod 21 of the crank plate 5 so as to be separated from each other at both ends of the guide rod 21. The first and second start and return points 10, 9 ' and 9 ' move back and forth in the first and second crank arms 9 and 9 'when the user manually rotates the crank plate 5 in the forward and reverse directions due to the manner in which the first and second crank arms 9 and 9' The bed 18 can be folded and unfolded in the storage space 17 automatically and manually.

1: retractable bed folding device 2: housing
3: Crankshaft 4: Crankshaft coupling ball
5: crank plate 6: regulating piece
7: Fixing pieces 8, 8 ': First and second motors
9, 9 ': first and second crank arms 10, 10': first and second start and return points
12: Adjusting bolts 13, 13 ': first and second suspensions
14: absorber 15: spring
17: cabinet 18: bed
19: fixed block 20: fixed pin
21: Lecture 22: Lecture

Claims

In the retractable bed folding device (1) in which the bed (18) is folded and unfolded in the cabinet (17)
A housing (2) formed in a box shape with an open top and attached to the bottom of the bed (18); and
A crankshaft 3 fixed to the storage 17 by being inserted into the housing 2 and inserted into the storage 17 at both ends thereof; and
A crankshaft coupling hole (4) is formed at the center of the crankshaft (3) so as to be fitted into the crankshaft (3), and a crankshaft (5) having a guide rod (21) and
First and second motors (8, 8 ') located opposite each other on both left and right sides of the crank plate (5); Wow
The first motor 8 is provided with a first crank arm 9 and a first crank arm 9 inserted into one side of the guide rod 21 formed on the crank plate 5 to rotate in the forward direction. and
The second motor 8 'is provided with a second crank arm 9' and a second crank arm 9 'inserted into the other side of the guide rod 21 formed on the crank plate 5 and rotating in the opposite direction Both ends of the crankshaft 3 are fixed to the storage 17 and the housing 2 is attached to the bottom of the bed 18 by the operation of the first and second crank arms 9 and 9 ' Wherein the bed (2) rotates in the forward or reverse direction so that the bed (18) is folded or unfolded.

The method according to claim 1,
The first and second start and return points 10 and 10 'are separated from each other by a predetermined length at both ends of the guide rod 21 formed on the crank plate 5 and then the first and second return points 10 and 10' Characterized in that a first crank arm (9) is located at the first start and return point (10 ') and a second crank arm (9') is located at the second start and return point (10 ').

3. The method of claim 2,
The first and second crank arms 9 and 9 'start at the first start and return points 10 or the second start and return points 10' when the crank plate 5 is rotated in the forward or reverse direction, The crankshaft 5 is pushed or pulled along the rod 21 to rotate the crankshaft 5 and the crankshaft 3 and then the first and second start and return points 10 , 10 ') of the crankshaft.

The method according to claim 1,
Characterized in that one end of a shock absorber (14) is coupled to the crankshaft (3) and the other end of the shock absorber (14) is coupled to the housing (2) .

The method according to claim 1,
And the other side of the first and second suspensions 13 and 13 'is coupled to the left and right sides of the crankshaft 3 while the first and second suspensions 13 and 13' ) Is fixed to both sides of the crankshaft.

6. The method of claim 5,
Characterized in that a first suspension 13 is located at one side of the crankshaft 3 and a spring 15 is located at the other side of the crankshaft 3. [

The method according to claim 1,
One end of the shock absorber 14 is coupled to the crankshaft 3 and the other end of the shock absorber 14 is coupled to the housing 2. The other end of the shock absorber 14 is connected to the left and right sides of the crankshaft 3, Characterized in that the suspensions (13,13 ') are engaged in opposed positions and the other side of the first and second suspensions (13,13') is fixed on both sides of the housing (2) Retractable bed folding device.