KR102191373B1 - Semiautomatic swing door using gas spring and running block - Google Patents

Abstract

The present invention relates to a semi-automatic swing door using a gas spring and a movable pulley, which can open and close a swing door with small force without using separate power, prevents a jamming accident when a door is opened and closed, and reduces manufacturing costs and maintenance costs. To this end, the semi-automatic swing door including a first door (D1) provided at one side of a door frame (F) to perform a swing operation by a first hinge (H1) and a second door (D2) for performing a swing operation by the first door (D1) and a second hinge (H2), comprises: a door driving unit (10) accommodated in an upper frame (40); and a sliding member (20) connected to the door driving unit (10) by a wire (W), slid inside the upper frame (40), and having a lower part assembled to an upper part of a door (D). The door driving unit (10) includes: a plate-shaped fixed plate (11) having a plurality of fixed pulleys to be vertically arranged; a plate-shaped moving plate (12) having a plurality of movable pulleys, spaced apart from the fixed plate (11) at a predetermined distance to slide the inside of the upper frame (40); and a gas spring (13) for connecting the fixed plate (11) and the movable plate (12) to each other.

Description

Semiautomatic swing door using gas spring and moving pulley {SEMIAUTOMATIC SWING DOOR USING GAS SPRING AND RUNNING BLOCK}

The present invention relates to a semi-automatic swing door using a gas spring and a moving pulley, and more specifically, the door is automatically closed after the door is opened manually, and the door can be opened with little force. The present invention relates to a semi-automatic swing door using a gas spring and a moving pulley that prevents jamming during opening and closing and closes stably without shaking when the door is automatically closed.

In general, a swing door means a door consisting of two doors and rotating at a certain angle around a hinge provided in a frame.

1 shows an example of such a swing door.

The conventional swing door includes a first door D1 provided inside a rectangular door frame F, and a second door D2 connected to the first door D1 to perform a swing motion.

Here, the width of the second door D2 is approximately twice the width of the first door D1.

In addition, a first hinge H1 is provided at the upper and lower portions of one side of the first door D1 to allow the first door D1 to swing with respect to the door frame F.

In addition, a second hinge H2 is provided at a connection portion between the first door D2 and the second door D2 so that the second door D2 can swing.

Further, on one side of the second door D2, a handle E for pushing the door is provided on the front and rear sides, respectively.

In addition, a roller R for moving along a rail provided in the upper door frame F is provided at an upper central portion of the second door D2.

The roller R is formed in a structure in which the second door D2 can rotate while sliding in a horizontal direction along a rail (not shown) provided inside the door frame F. Accordingly, the second door D2 is rotated 90 degrees so that it can be folded.

In the above-described conventional swing door, when the user pushes the handle of the second door D2 forward (or pulls it from the inside) from the outside, as shown in FIG. 1, the upper portion of the second door D2 is provided. The roller (R) moves to the left.

At this time, since the second door D2 is rotatably connected to the roller R within a certain range, the right part of the second door D2 enters the inside of the door frame F to open the door. .

In addition, when the user pushes the second door D2 from the inside, the connection portion between the first door D1 and the second door D2 moves inward and the door opens.

In addition, the first door D1 connected by the second door D2 and the second hinge H2 is outwardly centered on the first hinge H1 provided at the upper and lower sides of one side of the door frame F. It protrudes and begins to rotate.

If the handle E of the second door D2 is continuously pushed in this state, the first door D1 and the second door D2 are completely overlapped with each other as shown in the enlarged view of FIG. 1. The door will open completely.

In the case of closing the open door, if the handle E of the second door D2 is grabbed and pulled to the right, the roller R moves to the right while riding the rail to close the door.

The above-described swing door has an advantage in that it does not require a frame and space for accommodating an open door.

However, since the swing door having the above structure is a method of manually opening and closing the door, there is a problem that it is difficult for the elderly to open and close the door for children.

In addition, there is a problem that an accident in which a hand is caught in the door frame may occur in the process of manually opening and closing the door.

And in the conventional swing door, since the second door D2 must rotate within a certain range with the roller R as the center point, only the upper center of the second door D2 is connected to the roller R. have. That is, the right end of the second door D2 is in a state in which movement is free.

Accordingly, it is inevitable that shaking occurs when the door is opened or closed, and this shaking phenomenon becomes more severe when the door is closed.

That is, when the door is closed, there is a problem that the right end of the second door D2 is shaken and the door is not properly closed in the correct position.

In order to solve this problem, a magnet is installed on the right door frame in contact with the second door D2, but there is no fundamental solution to preventing the door from shaking.

In addition, the conventional swing door has a disadvantage in that it is difficult to assemble the upper part of the roller R and the second door D2, so that it takes a lot of time to install.

On the other hand, a method of automatically opening and closing the swing door by a reduction motor can be considered, but there is a problem in that power is required and the structure of the door driving device becomes large and complicated.

In addition, when the door is configured automatically, there is a disadvantage in that the possibility of failure is high and maintenance cost is increased.

In addition, in the case of installing a detection sensor and a shock absorbing damper on an automatic door to prevent safety accidents, the price increases significantly.

KR 10-1878190 B1 KR 10-2016-0069646 A KR -10-2015-0137315 A

The present invention is to solve the above-described problems of the prior art, and it is an object of the present invention to easily open and close a swing door with little force without using separate power, so that the elderly and children can easily use it.

Another object of the present invention is to improve the convenience of use by automatically closing the door after the door is manually opened.

Another object of the present invention is to ensure that the door is closed stably without shaking when the door is automatically closed.

Another object of the present invention is to prevent a jamming accident from occurring without using a separate damper when the door is automatically closed.

Another object of the present invention is to easily assemble a sliding member for moving a door and an upper portion of the door.

Another object of the present invention is to reduce the size of the semi-automatic door driving unit as much as possible so that it can be easily installed.

Another object of the present invention is to reduce the manufacturing cost and maintenance cost of the semi-automatic door drive unit.

Another object of the present invention is to allow universal application even if the width of the door changes.

In order to achieve the above object, the present invention includes a first door provided on one side of a door frame to swing by a first hinge, and a second door to swing by the first door and the second hinge. In the swing door made by doing so, comprising a door driving unit accommodated in the interior of the upper frame, and a sliding member that is connected to the door driving unit by a wire to slide in the interior of the upper frame, and the lower part is assembled to the upper part of the door, , The door driving unit is provided with a plurality of fixed pulleys, a flat plate-shaped fixed plate arranged vertically, and a plurality of moving pulleys and provided to be spaced apart from the fixed plate by a predetermined distance, so as to slide the inside of the frame. It characterized in that it comprises a plate and a gas spring connecting the fixed plate and the moving plate to each other.

In addition, the upper frame includes a movable plate upper guide rail and a movable plate lower guide rail provided at an upper portion, a sliding member upper guide rail and a sliding member lower guide rail provided at a lower portion, and a lower central portion of the frame It is characterized in that the door connecting member assembled with the upper part is open to move.

In addition, a first fixed pulley, a second fixed pulley, and a third fixed pulley are provided on one surface of the fixed plate, and a first moving pulley, a second moving pulley, and a third moving pulley are provided on one surface of the moving plate, A first conveying wheel, a second conveying wheel, a third conveying wheel, and a fourth conveying wheel are provided on the other surface of the moving plate.

In addition, among the transfer wheels provided on the other surface of the transfer plate, the second transfer wheel and the fourth transfer wheel slide along the guide rail on the upper part of the transfer plate provided in the frame, and the first transfer wheel and the third transfer wheel are attached to the frame. It is characterized in that it slides along the guide rail under the moving plate provided.

In addition, the wire is fixed at one end by a wire fixing unit provided on the fixed plate, and the first moving pulley of the moving plate, the first fixed pulley of the fixed plate, the third moving pulley and the second moving pulley of the moving plate, It is characterized in that the other end is fixed to the upper portion of the sliding member after winding the 2 fixed pulley and the third fixed pulley in turn.

In addition, the gas spring is characterized in that one end is fixed to the fixed plate and the other end is fixed to the moving plate, and is contracted by the movement of the sliding member assembled with the upper part of the door, and is elongated back to its original state when external force is removed. To do.

In addition, the sliding member includes a plurality of sliding rollers that slide along the lower inner surface of the frame, a roller fixing part fixing the sliding roller, and a plate-shaped rotation assembled to enable horizontal rotation under the roller fixing part. It is configured to include a member, characterized in that it is assembled with a door connecting member that is assembled on the upper portion of the door.

In addition, the roller fixing part is characterized in that it further comprises a ball plunger for limiting the rotation of the rotating member assembled at the lower part with a constant force.

In addition, the ball plunger includes support bolts assembled on both sides with a wire fixing bolt as a center, springs respectively provided at the lower part of the support bolts, and balls respectively provided at the lower part of the spring, and In the upper portion, it is characterized in that a pair of ball seats are formed so that some outer surfaces of the balls are seated.

In addition, at both ends of the rotating member, each bolt receiving groove for receiving the fixing bolt of the door connecting member is provided, the bolt receiving groove is characterized in that formed to open one side in a U shape.

In addition, bolt receiving grooves provided at both ends of the rotating member are formed toward opposite directions to each other.

In addition, the first door and the second door further comprises a door holding member for temporarily fixing the doors when they are completely open and folded to each other, the door holding member, a bracket for fixing the elastic member, and of the bracket It is characterized in that it comprises an arc-shaped elastic member provided on one side and a pair of rollers provided perpendicularly to both ends of the elastic member.

In addition, a round bar is vertically protruded from an upper portion of the sliding member assembled on the second door, so that the round bar enters the elastic member to temporarily fix the folded first door and the second door.

According to the present invention, since the door is driven by applying the principle of a gas spring and a moving pulley without using a separate power, there is an effect that the door is automatically closed after opening the door manually.

In addition, since the force of opening the door can be greatly reduced by a plurality of moving pulleys, there is an effect that the elderly and children can easily use it.

In addition, there is an effect of stably closing the door by preventing vibration from occurring when the door is automatically closed.

In addition, since the door is gradually closed by the force of the gas spring, it is possible to prevent a jamming accident without using a separate damper.

In addition, the sliding member and the upper portion of the door can be easily assembled by the rotating member and the door connecting member.

In addition, since the door driving unit is completely accommodated in the frame, the size of the door driving unit is reduced and the structure is simplified.

In addition, since a reduction motor or a sensor is not required, there is an effect of reducing manufacturing cost.

In addition, since a gas spring with a simple structure is used, there is an effect of reducing the occurrence of failure and reducing maintenance costs.

In addition, even if the width of the door changes, there is an effect that can be applied universally.

1 is a perspective view showing an example of a swing door according to the prior art.
Figure 2 is a front view schematically showing a door closed state in the swing door according to the present invention.
Figure 3 is a front view schematically showing a door open state in the swing door according to the present invention.
Figure 4 is a perspective view showing one side of the door driving unit in the swing door according to the present invention.
5 is a perspective view showing the other side of the door driving unit in the swing door according to the present invention.
6 is a perspective view showing a coupling relationship between an upper frame and a door in a swing door according to the present invention.
7 is a perspective view showing a sliding member according to the present invention.
8 is a cross-sectional view of a sliding member according to the present invention.
9 is a perspective view showing a coupled state of the door holding member and the round bar according to the present invention.

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

The semi-automatic swing door using a gas spring and a moving pulley according to the present invention is provided on one side of the door frame (F) and performs a swing operation by a first hinge (H1), as shown in FIGS. 2 to 4. In the swing door comprising a door (D1) and a second door (D2) swinging by the first door (D1) and the second hinge (H2), the inside of the upper frame (40) A sliding member that is connected to the door driving unit 10 by the door driving unit 10 to be accommodated and the door driving unit 10 by a wire W to slide in the interior of the upper frame 40, and the lower part is assembled to the upper part of the door D It is composed of (20).

Here, as shown in FIG. 4, the door driving unit 10 includes a fixing plate 11 in a flat plate shape disposed vertically with a plurality of fixing pulleys, a plurality of moving pulleys, and the fixing plate 11 A flat plate-shaped moving plate 12 that is provided spaced apart from the frame 40 and slides inside the frame 40, and a gas spring 13 connecting the fixed plate 11 and the moving plate 12 to each other. do.

The gas spring 13 has a feature of slowly returning to its original position when external force is removed after the rod is contracted.

Accordingly, when the external force is removed after manually opening the door and contracting the gas spring 13, the door is automatically closed by the restoring force of the gas spring 13.

Further, since the gas spring 13 has a small force and a slow restoration speed, the door stops when a hand or body is caught when the door is closed. Accordingly, there is no risk of injuries to the user when opening and closing the door.

Further, since the gas spring 13 has a small size, the size of the door driving unit can be reduced, and the size of the upper frame 40 in which the door driving unit is accommodated can be reduced.

In addition, compared to the automatic swing door operated by power, the possibility of failure is lower and maintenance is simplified.

And the upper frame 40 according to the present invention, as shown in Figure 6, the moving plate upper guide rail 41 and the moving plate lower guide rail 42 provided at the top, and the upper sliding member provided at the bottom A guide rail 43 and a sliding member lower guide rail 44 are provided.

In addition, the lower central portion of the upper frame 40 is formed in an open shape so that the door connecting member 24 assembled with the upper portion of the door D can move.

That is, in the upper part of the upper frame 40, the fixing plate 11 and the moving plate 12, and a gas spring 13 connecting the fixed plate 11 and the moving plate 12 are accommodated.

At one end of the fixing plate 11, as shown in FIG. 6, a fixing plate 11b is provided and fixed to the end of the upper frame 40.

Accordingly, the fixing plate 11 does not move in the horizontal direction when the door is opened or closed, and remains fixed.

In addition, the moving plate 12 performs a sliding motion within the upper portion of the upper frame 40 due to the expansion and contraction of the gas spring 13.

Further, at the lower part of the upper frame 40, the sliding member 20 is connected to the upper part of the second door D to perform a sliding motion.

As shown in FIG. 4, the sliding member 20 is provided in the upper center of the second door D2 and is connected to the door driving unit 10 by a wire W.

That is, the sliding member 20 is not provided in the first door D1.

In addition, as shown in Figure 4, on one surface of the fixing plate 11, a first fixed pulley (R1), a second fixed pulley (R2), and a third fixed pulley (R3) is provided, and the moving plate 12 ), a first moving pulley R4, a second moving pulley R5, and a third moving pulley R6 are provided.

And on the other surface of the moving plate 12, as shown in Fig. 5, a first transfer wheel (R7), a second transfer wheel (R8), a third transfer wheel (R9), and a fourth transfer wheel (R10). Is equipped.

The fixing plate 11 is provided with a plurality of fixing pulleys R1, R2, R3 only on one side, because the fixing plate 11 is maintained in a fixed state inside the frame 40.

On the other hand, on one side of the moving plate 11, as shown in FIG. 4, a plurality of moving pulleys R4, R5, and R6 connected by a wire W and the fixed pulley of the fixed plate 11 are provided. 5, a plurality of transfer wheels R7, R8, R9, and R10 are provided on the other surface.

The plurality of conveying wheels R7, R8, R9, and R10 provided on the other surface of the moving plate 11 guide the moving plate 11 when moving inside the upper frame 40 without the wire being wound.

Here, among the transfer wheels provided on the other surface of the moving plate 12, the second transfer wheel R8 and the fourth transfer wheel R10 are provided in the upper frame 40 as shown in FIG. 5. It is provided slightly upward to slide along the upper guide rail 41 of the plate, and the first transfer wheel R7 and the third transfer wheel R9 support the lower guide rail 42 of the moving plate provided on the upper frame 40. It is provided a little below the ride to slide.

This is to ensure that the moving plate 12 moves stably and smoothly within the upper frame 40.

In addition, the wire (W) connecting the door drive unit 10 and the sliding member 20, as shown in Figure 4, one end is fixed by the wire fixing portion (11a) provided on the fixing plate (11), and The first moving pulley (R4) of the plate 12, the first fixed pulley (R1) of the fixed plate 11, the third moving pulley (R6) and the second moving pulley (R5) of the moving plate 12, and the fixed plate ( After winding the second fixed pulley R2 and the third fixed pulley R3 of 11) in order, the other end is fixed to the upper portion of the sliding member 20.

According to the wiring method using the moving pulley described above, since the force for contracting the gas spring 13 is shared by the four wires, the force required to contract the gas spring 13 can be reduced to 1/4.

In the drawing, two moving pulleys that share a force for contracting the gas spring 13 are shown, but the present invention is not limited thereto. The number of moving pulleys may be further increased according to the size of the door.

For example, if three fixed pulleys are arranged on the fixed plate and three moving pulleys are arranged on the moving plate, the force required to contract the gas spring 6 can be reduced to 1/6.

Further, the wire W is preferably made of a stainless steel material, but is not limited thereto.

In addition, a timing belt and a pulley may be used instead of the wire W to connect the door driving unit 10 and the sliding member 20.

And the sliding member 20 according to the present invention, as shown in Figure 7, a plurality of sliding rollers 21 sliding along the lower inner surface of the frame 40, and a roller fixing the sliding roller 21 It is configured to include a fixing portion 22 and a plate-shaped rotating member 23 assembled to enable horizontal rotation under the roller fixing portion 22.

As shown in FIG. 6, the sliding member 20 has an upper portion connected to the door driving unit 10 by a wire W, and a lower portion connected to the upper portion of the door D, so that the upper frame 40 ) In the lower part of the sliding motion.

In addition, the roller fixing part 22 further includes a ball plunger for limiting the rotation of the rotating member 23 assembled at the lower part with a constant force.

The ball plunger, as shown in Figure 8, the support bolts (22d) that are assembled on both sides of the wire fixing bolt (22a), and the spring (22c) provided respectively under the support bolt (22d) and , It is configured to include a ball (22b) each provided in the lower portion of the spring (22c).

In addition, a pair of ball seating portions 23b are formed on the upper portion of the body of the rotating member 23 so that a partial outer surface of the ball 22b is seated.

According to the above structure, when the second door D2 is almost closed, the balls 22b, which have maintained elasticity, are seated on the ball seating portion 23b.

Accordingly, when the door is closed, the right side portion of the second door D2 can be stably closed without shaking.

In addition, bolt receiving grooves 23a for accommodating the fixing bolts 24a of the door connecting member 24 are provided at both ends of the rotating member 23 assembled under the sliding member 20.

The bolt receiving groove (23a) is formed to open one side in a U-shape, and the bolt receiving groove (23a) provided at both ends of the rotating member (23) is preferably formed toward each other in opposite directions.

With the above-described structure, the second door D2 and the sliding member 20 can be easily assembled, and the second door D2 can be reliably and smoothly slided.

In addition, the present invention, as shown in Figure 4, further includes a door holding member 30 for temporarily fixing the doors when the first door (D1) and the second door (D2) are completely open and folded to each other do.

The door holding member 30, as shown in Figure 9, a bracket 31 for fixing the elastic member, an arc-shaped elastic member 32 provided on one side of the bracket 31, and the It is configured to include a pair of rollers 33 provided vertically at both ends of the elastic member 32.

In addition, a round bar 22e is vertically protruded on an upper portion of the sliding member 20 assembled on the second door D2.

With the above structure, the round bar 22e may enter the elastic member 32 to temporarily fix the folded first door D1 and the second door D2.

That is, when the door is pushed so that the round bar 22 overcomes the elastic force of the elastic member 32 and enters the interior, the round bar 22 is accommodated in the space inside the elastic member 32 to maintain a stable state. .

Accordingly, the completely folded first door D1 and the second door D2 may be kept in a closed state.

Here, the distance between the pair of rollers 33 is determined in consideration of the diameter of the round bar 22e and the restoring force of the gas spring 13.

That is, the gap between the rollers 33 is set so that the round bar 22e passes between the rollers 33 without applying a large force, and once the round bar 22e enters the elastic member 32, the gas The door is prevented from being closed by the restoring force of the spring 13.

Hereinafter, the operation of the swing door according to the present invention will be described with reference to FIGS. 2 and 3. For convenience, a case where the user pushes the door from the outside will be described as an example.

When the user grabs and pushes the handle E of the second door D2, the sliding member 20 connected to the upper portion of the second door D2 starts to slide to the left, as shown in FIG. 2.

Accordingly, as shown in FIG. 3, the moving plate 12 located on the left moves to the right while contracting the gas spring 13.

At this time, since the force for contracting the gas spring 13 is reduced to 1/4 by the two moving pulleys, the gas spring 13 can be contracted with a small force.

When the door is opened to a certain width and passed through the door, the gas spring 13 begins to expand to its original state due to the restoring force of the contracted gas spring.

Accordingly, the gas spring 13 pushes the moving plate 12 to the left, and the door is automatically closed slowly while moving to the right.

If it is necessary to open the door for a certain period of time, the first door D1 and the second door D2 are completely folded by pushing the second door D2 all the way.

Then, as shown in FIG. 3, the round bar 22e protruding from the upper portion of the sliding member 20 is fitted into the door holding member 30 to keep the door open.

That is, the door holding member 30 blocks the restoring force of the gas spring 13 to prevent the door from automatically closing.

When the door is closed in this state, the second door D2 is pushed to the right so that the round bar 22e is separated from the door holding member 30.

Then, the door is automatically closed by the restoring force of the gas spring 13.

The manual swing door has a disadvantage in that it is difficult for the elderly or children to use it because the force is relatively high when pushing the door.

In addition, when the swing door is automatically configured, the structure is complicated, installation is difficult, and the price is increased.

In addition, when the door is automatically configured, since the door is forcibly opened and closed by the force of the motor, there is a problem that a jamming accident may occur when the door is opened or closed.

In order to solve this problem, a shock absorber or a sensor may be provided, and in this case, the price is greatly increased.

In contrast, the present invention uses a gas spring having a low price and a small size, so that manufacturing cost can be reduced and the size of the door driving unit can be reduced.

In particular, in the present invention, since the gas spring and the moving pulley are used together, the gas spring can be contracted with a small force by dispersing the force for contracting the gas spring. Accordingly, the elderly and children can easily use the swing door.

In addition, since the present invention has a structure in which all the door driving units 10 are built into the upper frame 40, the installation work of the door is very simple.

In addition, since the gas spring does not have a large resilience, there is no risk of injury even if your hand or body gets caught in the door frame when the door is closed.

In addition, a general swing door is provided with a roller R only on the upper portion of the second door D2 so that the first door D1, which is a small door, and the second door D2, which is a large door, can be smoothly overlapped with each other. .

If two rollers are provided on the top of the second door D2, the second door D2 cannot rotate around the rollers.

Accordingly, in the swing door, it is inevitable that shaking occurs when the door is opened and closed. In particular, when the door is closed, the shaking phenomenon becomes more severe because the right part of the second door D2 is in a free state. .

In contrast, according to the present invention, by providing a ball plunger in the sliding member 20 that drives the second door D2, it is possible to minimize the shaking phenomenon when the door is opened or closed.

That is, when the door is closed to some extent, a pair of balls 22b provided in the lower portion of the sliding member 20 are seated on the ball seating portion 23b of the rotating member 23, and the second door D2 is shaken. Will hold you.

In this way, when the door is automatically closed by the force of the gas spring, it can be stably closed without shaking.

Although the technical idea of the present invention has been exemplarily described and illustrated above, the present invention is not limited to the configuration and operation as described above. Those of ordinary skill in the art will appreciate that a number of changes and modifications can be made to the present invention without departing from the scope of the technical idea described in the claims. Accordingly, all such appropriate changes and modifications and equivalents should be considered to be within the scope of the present invention.

10: door driving part 11: fixing plate
12: moving plate 13: gas spring
20: sliding (Sliding) member 21: sliding roller (Sliding Roller)
22: roller fixing part 22a: wire fixing bolt
22b: Ball 22c: Spring
22d: support bolt 22e: round bar
23: rotating member 23a: bolt receiving groove
23b: ball seat 24: door connecting member
24a: fixing bolt 30: door holding member
31: bracket 32: elastic member
33: Roller 40: upper frame
41: upper guide rail of the moving plate
42: moving plate lower guide rail
43: sliding member upper guide rail
44: sliding member lower guide rail
D1: first door D2: second door
E: handle F: door frame
H1: first hinge H2: second hinge
R1: first fixed pulley R2: second fixed pulley
R3: 3rd fixed pulley R4: 1st moving pulley
R5: second moving pulley R6: third moving pulley
R7: 1st conveying wheel R8: 2nd conveying wheel
R9: 3rd conveying wheel R10: 4th conveying wheel
W: Wire

Claims (13)

The first door D1 provided on one side of the door frame F and swinging by the first hinge H1, and the first door D1 and the second hinge H2 swinging by the first door D1 and the second hinge H2. In the swing door comprising the 2 door (D2),
A door driving unit 10 accommodated in the upper frame 40,
It is connected to the door driving unit 10 by a wire (W) and slides inside the upper frame 40, and the lower part includes a sliding member 20 that is assembled on the upper part of the door (D),
The door driving unit 10,
A flat plate-shaped fixing plate 11 disposed vertically with a plurality of fixed pulleys,
A flat plate-shaped moving plate 12 provided with a plurality of moving pulleys and spaced apart from the fixed plate 11 by a predetermined distance, and sliding inside the frame 40,
And a gas spring 13 connecting the fixed plate 11 and the moving plate 12 to each other,
The sliding member 20,
A plurality of sliding rollers 21 sliding along the lower inner surface of the upper frame 40,
A roller fixing part 22 for fixing the sliding roller 21,
Consisting of including a plate-shaped rotating member 23 assembled to enable horizontal rotation under the roller fixing part 22,
It is assembled with the door connecting member 24 assembled on the upper part of the door (D),
The roller fixing part 22 is a semi-automatic type using a gas spring and a moving pulley, characterized in that it further comprises a ball plunger for limiting the rotation of the rotating member 23 assembled at the bottom to a constant force. Swing door. The method of claim 1,
The upper frame 40,
The moving plate upper guide rail 41 and the moving plate lower guide rail 42 provided at the upper part,
It includes a sliding member upper guide rail 43 and a sliding member lower guide rail 44 provided at the bottom,
A semi-automatic swing door using a gas spring and a moving pulley, characterized in that the lower central part of the frame is opened so that the door connecting member 24 assembled with the upper part of the door D can move. The method of claim 1,
A first fixed pulley (R1), a second fixed pulley (R2), and a third fixed pulley (R3) are provided on one surface of the fixed plate 11,
On one surface of the moving plate 12, a first moving pulley R4, a second moving pulley R5, and a third moving pulley R6 are provided,
A gas spring, characterized in that a first conveying wheel (R7), a second conveying wheel (R8), a third conveying wheel (R9), and a fourth conveying wheel (R10) are provided on the other surface of the moving plate 12. Semi-automatic swing door using pulley and moving pulley. The method of claim 3,
Among the transfer wheels provided on the other surface of the transfer plate 12, the second transfer wheel R8 and the fourth transfer wheel R10 include the guide rail 41 provided on the upper part of the frame 40. Ride and slide,
The first conveying wheel (R7) and the third conveying wheel (R9) are semi-automatic using a gas spring and a moving pulley, characterized in that they slide on the guide rail 42 under the moving plate provided on the upper part of the frame 40. Swing door. The method of claim 1,
The wire (W),
One end is fixed by a wire fixing portion (11a) provided on the fixing plate (11),
The first moving pulley (R4) of the moving plate (12), the first fixed pulley (R1) of the fixed plate (11), the third moving pulley (R6) and the second moving pulley (R5) of the moving plate (12), fixed plate After winding the second fixed pulley (R2) and the third fixed pulley (R3) of (11) in order,
Semi-automatic swing door using a gas spring and a moving pulley, characterized in that the other end is fixed to the upper portion of the sliding member (20). The method of claim 1,
The gas spring 13,
One end is fixed to the fixing plate 11 and the other end is fixed to the moving plate 12, and contracted by the movement of the sliding member 20 assembled with the upper part of the door D,
A semi-automatic swing door using a gas spring and a moving pulley, characterized in that when the external force is removed, the moving plate 12 is pushed back while being expanded to its original state. delete delete The method of claim 1,
The ball plunger,
Support bolts (22d) assembled on both sides around the wire fixing bolts (22a),
Springs (22c) provided respectively under the support bolt (22d),
Including balls (22b) provided respectively under the spring (22c),
A semi-automatic swing door using a gas spring and a moving pulley, characterized in that a pair of ball seating portions 23b are formed on the upper part of the body of the rotating member 23 to allow a partial outer surface of the ball 22b to be seated. . The method of claim 1,
At both ends of the rotating member 23, bolt receiving grooves 23a for accommodating the fixing bolts 24a of the door connecting member 24 are provided, respectively,
The bolt receiving groove (23a) is a semi-automatic swing door using a gas spring and a moving pulley, characterized in that formed to open one side in a U-shape. The method of claim 10,
A semi-automatic swing door using a gas spring and a moving pulley, characterized in that the bolt receiving grooves 23a provided at both ends of the rotating member 23 are formed toward opposite directions. The method of claim 1,
Further comprising a door holding member 30 for temporarily fixing the doors when the first door D1 and the second door D2 are completely opened and folded to each other,
The door holding member 30,
Bracket 31 for fixing the elastic member,
An arc-shaped elastic member 32 provided on one side of the bracket 31,
A semi-automatic swing door using a gas spring and a moving pulley, characterized in that it comprises a pair of rollers (33) provided vertically at both ends of the elastic member (32). The method of claim 12,
A round bar 22e protrudes vertically above the sliding member 20 assembled on the second door D2,
Semi-automatic swing using a gas spring and a moving pulley, characterized in that the round bar (22e) enters the elastic member (32) and temporarily fixes the folded first door (D1) and the second door (D2) door.

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