KR101087705B1 - The interlock for the double sliding type door - Google Patents

Abstract

The present invention relates to an interlock device used for a double sliding door, and more particularly to a double sliding door interlock device that can be opened and closed smoothly without requiring a large force in the process of opening and closing each door in the double sliding door. It is about.

To this end, the present invention is the first and second guide rails are formed side by side to form a through groove, the first and second transfer plate sliding on each of the first and second guide rails, and the first and second guide rails are installed in front and rear 1st and 3rd pulleys, 2nd and 4th pulleys provided in front and behind of the 2nd guide rail, and 2nd and 4th pulley which are inward of the 1st and 2nd pulleys, and are provided in the 2nd guide rail, and are installed. It is inward, is pulled from the front end of the rear pulley and the first conveying plate which is installed to be biased to the second guide rail, and is wound on the rear end of the second conveying plate through the first, the third and the fourth pulley in turn, and then the rear pulley and the front It is wound on the front end of the second conveying plate through the pulleys in turn, and then pulled back to the rear portion of the first conveying plate through the second, 1, and 3 pulleys, and both ends are fixed to the first conveying plate, It is characterized in that the wire for interlocking the transfer plate is included.

Interlock, door, sliding

Description

Interlocking device for double sliding doors {The interlock for the double sliding type door}

The present invention relates to an interlock device used for a double sliding door, and more particularly to a double sliding door interlock device that can be opened and closed smoothly without requiring a large force in the process of opening and closing each door in the double sliding door. It is about.

The opening and closing of the door can be divided into sliding type and sliding type, and the sliding type has a sliding door type consisting of a single door, a double sliding type consisting of a pair of doors, and a multiple sliding type having three doors.

When sliding the door provided on the outside in a sliding door consisting of a pair of doors or more, a linked door has been developed in which the door is opened and closed as the remaining doors slide together.

As an example of an interlocking device for operating such interlocking doors, there is a patent application for "sliding door interlocking device" (Korean Patent Application No. 10-2008-0046706, filing date 2008.05.20).

The pre- filed technology is a linkage device for interlocking the first and second transfer plates 110 and 120 sliding on guide rails 101 and 102 installed side by side, wherein the second transfer plate 110 moves in accordance with the movement of the first transfer plate 110. 120 is fixed to the first transfer plate 110, and interlocked with the pulling force of the wire (W) wound freely movable on both ends of the second transfer plate 120, wherein the wire (W) is One end is fixed to the front end 111 of the first transfer plate 110 and then wound around the rear end 122 of the second transfer plate 120, after which the wire (W) is the second transfer plate After winding to the front end portion 121 of the 120 is to be fixed to the rear end 112 of the first transfer plate (110). Such an application is to reduce the sliding of the wire to open and close the sliding door while the door fixed to the transfer plate is interlocked or differential interlocked at the correct distance. Specifically, when the first and second feed plates are interlocked together, the movement of the wire wound thereon is suppressed by the auxiliary pulley which increases the frictional force, and when the first and second feed plates are differentially interlocked, the wires that overcome the frictional force of the auxiliary pulley and span the auxiliary pulley Is moved and the first and second transfer plates are the same ratio (differential linkage).

However, the interlocking device according to the prior application is equipped with a pair of auxiliary pulleys 150 before and after each, opening and closing the door because the first and second transfer plate must overcome the frictional force of the reinforced auxiliary pulley in order to have the same transfer ratio. It has the disadvantage of requiring some power. That is, the auxiliary pulley is formed smaller than the outer pulley has a disadvantage in that the resistance is greatly increased on the wire to be caught on the auxiliary pulley, and because a pair of auxiliary pulleys must be installed in a narrow section, the structure has a complex disadvantage.

In addition, the outer pulley and the auxiliary pulley are installed in the housing according to the corresponding position after installing the rail in the housing.If any pulley breaks down during use, the pulley hanging upside down on the ceiling is released and the new pulley is assembled again. It has to be very troublesome.

On the other hand, when the user closes the door with excessive force, there is a fear that the wire slips due to the inertia of the door fixed to the second transfer plate. In particular, a user who does not understand the operation of the door may forcibly slide the door away from the pulley by sliding each door in the opposite direction with excessive force in order to change the position of both doors. There are drawbacks to this.

The present invention has been made to solve the above-described problems, the embodiment of the present invention further improves the applicant's prior application "sliding door interlock device" (Korean Patent Application No. 10-2008-0046706), It has the purpose of enabling opening and closing of the door even by force.

Specifically, it has an object of minimizing the friction element so that the sliding of the interlocking door is smooth.

It also has the purpose of further reducing friction-causing components, smooth operation with a simple structure, and the purpose of more smooth rotation of each pulley.

It also has the purpose of simplifying the replacement and repair of the pulley to assist the movement of the wire.

It also has the purpose of further reducing friction by the wires at the front and rear ends of the conveying plate over which the wires run.

It also has the purpose of not conveying the conveying plate beyond the set operating period.

In addition, it has the purpose of reducing the impact noise generated when the door is closed.

In order to solve the above problems, the present invention is the first and second guide rails are installed side by side to form a through groove in an embodiment, and the first and second transfer plate sliding on each of the first and second guide rails, First and third pulleys provided in front and rear of the first guide rail, second and fourth pulleys installed in front and rear of the second guide rail, and inward of the first and second pulleys and are biased to the second guide rail. A front pulley installed at the lower side, a rear pulley installed at an inner side of the third and fourth pulleys, and drawn out from a front end of the first transfer plate and the first pulley of the first transfer plate. Winding to the rear end of the second conveying plate in turn, and then winding again to the front end of the second conveying plate through the rear pulley and the front pulley, and then to the rear part of the first conveying plate through the second, 1,3 pulley Both ends are fixed to the first transfer plate, and the first and second transfer plates The key proposes a linkage for a sliding door, characterized in that a wire is included.

In addition, the wire across the rear pulley proposes an interlock device for a sliding door, characterized in that the passage through the through groove to the front pulley.

In addition, the through groove provides a sliding door interlock device, characterized in that the cover is coupled to prevent foreign matter from entering.

The first and second pulleys and the front pulleys are provided on the front base plate, and the third and fourth pulleys and the rear pulleys are provided on the rear base plate, and the front and rear base plates are provided before and after the first and second guide rails. The present invention provides a sliding device for a sliding door, characterized in that the screw hole is formed to be coupled to.

In addition, the first to fourth pulleys and the front and rear pulleys have a cylindrical pulley main body having a groove wound around the outer surface, a cylindrical bearing forcibly fitted inside the pulley main body, and a bottom surface of the pulley main body. Interlocking for the sliding door, characterized in that the bottom bushing facing the lower surface of the bearing and the bolt passing through the center of the pulley body, the bearing and the bottom bush so as to be spaced apart from the front base plate or the rear base plate. Present the device.

In addition, the front and rear ends of the first and second conveying plate is fixed to the wire hole through which the wire passes, and the conveying block is formed in the guide groove which is slidingly coupled to the guider protruding from the inside of the guide rail facing each other, The inner side of the first and second conveying plate proposes a linkage device for a double sliding door, characterized in that the conveying pulley to which the wire passing through the wire hole extends is rotatably coupled.

The first and second guide rails further include a stopper block fixed to both ends of a section in which the first and second transfer plates are moved.

In addition, the stopper block proposes an interlock device for a double sliding door, characterized in that the buffer member for reducing the impact sound due to the contact with the transport block is further provided.

According to the two sliding door interlock device according to an embodiment of the present invention as described above, by using three pulleys in front and rear of the interlock device using the front and rear pulleys, the configuration is simplified, the friction resistance element Reduce the effect of opening and closing the door smoothly by a small force.

In addition, the friction force is further reduced when sliding the front and rear of the second transfer plate by the wire passing through the through groove has an effect that can be opened and closed smoothly.

In addition, the pulleys provided at the front and rear are integrally coupled and united on the front base plate or the rear base plate, thereby making it easy to install the linkage device, and in case of failure of any one pulley after installation on the ceiling surface. The front base plate or the rear base plate to which the pulley is mounted is exchanged integrally, thereby making it easy to replace and repair.

In addition, it is possible to further lower the rotational resistance of each pulley through the bottom bush separating the pulley body from the base plate, it has the effect that the opening and closing of the door more smoothly.

In addition, the wire is more smoothly operated in the second conveyance plate is changed by 180 degrees by the feed pulley, the ratio of the moving distance of the first and second conveyance plate is more accurately maintained and has the effect of interlocking.

In addition, when the stopper block is provided, the door is not out of the conveying range even if the user pulls the malfunction by excessive force, thereby increasing the reliability of the operation.

In addition, when the buffer member is further provided, the impact noise generated when the door is opened and closed has an effect of making the door more advanced.

Hereinafter, through the preferred embodiment of the accompanying drawings, it will be described in detail the function, configuration and operation of the present invention for the sliding door interlock device.

However, in the following drawings, the accumulation of the length of the guide rail and each conveying plate is somewhat exaggerated in the longitudinal direction. In addition, the reference numerals for the same components are used uniformly.

1 is a perspective view schematically showing a linkage device for a sliding door according to an embodiment of the present invention, Figure 2 is a perspective view schematically showing a wire connection of the linkage device for a sliding door shown in Figure 1, Figure 3 Is a perspective view schematically showing a state of use of the interlock device for the sliding door shown in FIG.

First and second sliding door interlock device 1 according to a preferred embodiment of the present invention is coupled to the first and second transfer plates 110 and 120, respectively, sliding on the first and second guide rails 101 and 102 installed side by side. In the interlocking device for interlocking the doors 10 and 20, the second conveying plate 120 is fixed to the first conveying plate 110 according to the movement of the first conveying plate 110, and the second conveying plate ( Both ends of the 120 are interlocked with the pulling force of the wire W wound freely.

That is, parallel first and second guide rails 101 and 102 are installed on the ceiling of the space where the double sliding doors in which the first and second doors 10 and 20 are provided are installed, and the first and second guide rails 101 and 102 are provided. The first and second transfer plates 110 and 120 to which the first and second doors 10 and 20 are coupled are slidably coupled to the lower portions, respectively. In this case, the first and second guide rails may not be directly installed on the ceiling, but may include a housing H fixed to the ceiling.

In addition, the first and second guide rails 101 and 102 are provided at regular intervals, thereby forming a through groove 162a in the center thereof. The through grooves 162a are recessed in the housing H, or are formed by outer surfaces of the first and second guide rails protruding from the bottom of the housing.

At this time, the first transfer plate 110 and the second transfer plate 120 through the wire (W) so that the second door 20 is linked with the movement of the first door 10 to open and close the sliding door. Connected. At this time, the wire is fixed to the first conveyance plate 110, is freely moved across both ends of the second conveyance plate 120, the second conveyance by the pulling force generated in the wire in accordance with the movement of the first conveyance plate As the wire stretched on either side of the plate is pulled, the second transfer plate moves in association with the first transfer plate. That is, a pulling force is generated on the wire by the movement of the first transfer plate, and the wire is changed in direction and spans both ends of the second transfer plate, so that the wires on either end of the second transfer plate are stretched. By pulling the second transfer plate is interlocked.

Hereinafter, in order to make the description easier, the front F and the rear R of the linkage device 1 will be described separately as shown in FIG. 1.

In order for the movement direction of the first conveyance plate and the interlocked movement direction of the second conveyance plate to be the same, the pulling force of the wire generated by the forward and backward sliding movement of the first conveyance plate is pulled in the same traveling direction to the second conveyance plate. It should work by force. To this end, the wire W extends from the front end 111 of the first transfer plate 110 to be wound around the rear end 122 of the second transfer plate 120, and then passes through the second groove to pass through the second transfer plate 120. After winding to the front end portion 121 of the) is fixed to the rear end 112 of the first transfer plate (110).

Specifically, the first pulley P1 is provided at the front of the first guide rail 101, and the third pulley P3 is provided at the rear of the first guide rail 101. 3 and 4 pulleys P3 and P4 are provided. In addition, a front pulley Pf is provided between the first and second pulleys P1 and P2, and the front pulley Pf is biased toward the second guide rail 102 and interferes with the second pulley P2. In order not to be coupled to the center, that is, the inner side of the linkage device (1). In addition, a rear pulley Pr is provided between the third and fourth pulleys P3 and P4, and the rear pulley Pr is also biased to the second guide rail 102 and interferes with the fourth pulley P4. It is coupled to be inwardly biased. At this time, the first to fourth pulleys (P1, P2, P3, P4), the front and rear pulleys (Pf, Pr) preferably all have the same diameter in order to increase the convenience of parts management.

The wire W traveling forward from the front end of the first conveying plate 110 is changed in the traveling direction by the first pulley P1 to cross the front and rear of the first guide rail 101 to form a third pulley P3. ), And the traveling direction is changed by the third and fourth pulleys P3 and P4 to proceed to the rear end of the second transfer plate 120. Thereafter, the winding direction is wound around the rear end of the second transfer plate 120 (preferably, the transfer pulley which will be described later), and the driving direction is changed by 180 degrees. In addition, the wire W is wound on the rear pulley Pr, and the traveling direction is changed again to reach the front pulley Pf. The wire W is wound on the front pulley Pf, and the traveling direction is switched, this time the front end of the second transfer plate 120. It is wound on the part, and the traveling direction is changed again by 180 degrees, and then proceeds to the front of the second transfer plate 120. Since the wire passes through the second pulley (P2), the first pulley (P1) and the third pulley (P3) in turn, the direction of travel is switched to proceed to the rear end of the first transfer plate 110, the first transfer plate 110 Is fixed to.

Thus, when the first transfer plate 110 is moved to the rear end portion of the first guide rail 101, the pulling force of the wire (W) which is advanced at the front end of the first transfer plate 110 is the second transfer plate ( 120) pull the guide rail backwards.

At this time, the wire W in which the traveling direction is changed in the rear pulley Pr is moved to the front pulley Pf through the passage groove 162a. As a result, a portion of the wire may not pass through the inside of the second guide rail, thereby reducing the resistance element during sliding of the second transfer plate. In other words, unlike the previous application, the wires extending across the front and rear pulleys do not pass through the inside of the second guide rail, thereby pulling out the wire acting as a frictional resistance during the sliding of the second transfer plate to the outside of the second guide rail.

In addition, it is preferable that the cover 104 is further coupled to the through groove 162a to prevent foreign substances from entering, so that the operation of the wire is not disturbed by the interference of the foreign substances.

On the other hand, when the first transfer plate 110 moves forward or backward, the wire W4 in the section from the rear pulley Pr to the front pulley Pf is the pulling force of the wire generated by the movement of the first transfer plate. This becomes a weakly reflected section, so that the first and second transfer plates 110 and 120 are interlocked at a ratio of 2: 1. That is, the wire W4 from the rear pulley Pr to the front pulley Pf is the farthest part of the entire wire fixed at both ends to the first transfer plate, and the rotational resistance of each pulley is sequentially passed through the plurality of pulleys. The reason why the pulling force gradually decreases due to the direction change of the wire several times, and the wire W4 wound on the front pulley Pf or the rear pulley Pr are wound on half of the outer circumferential surface of each pulley and the direction of travel is Since the rapid change of 180 degrees, the resistance of the wire W4 passing through the front and rear pulleys Pf and Pr passes through the first to fourth pulleys P1, P2, P3, and P4, and the wires W1 to W3 and W5 to W7. For reasons larger than the resistance of the first and second transfer plates, there is no movement when interlocking at a ratio of 2: 1.

That is, the wires W3, W4 and W4, W5 spanning both ends of the second transfer plate 120 are freely rotatable at the front and rear ends of the second transfer plate 120 and are coupled to the free ends. One of the wires parallel to the front and rear ends of the second transfer plate (W4) is not moved over the front pulley (Pf) or the rear pulley (Pr) and the other (W3 or W5) is the second pulley (P2) Alternatively, since the second conveying plate 120 is pulled by a wire that spans the fourth pulley P4, the second conveying plate 120 has a length that is pulled by the wire W3 or W5 passing through the second pulley P2 or the fourth pulley P4. It is moved forward by 1/2.

At this time, the rear pulley Pr and the front pulley Pf have the first to fourth pulleys P1, P2, P3, and P4 so that the forward movement of the 1/2 length of the second transfer plate is more reliably performed. It is preferable that the rotational resistance is formed larger than that. That is, the wire W4 spanning the rear pulley Pr and the front pulley Pf is not moved, thereby being pulled by the wire W3 or W5 passing through the second pulley P2 or the fourth pulley P4. The second conveying plate 120 is to be conveyed by an exact length of half the length. At this time, the length of the wire (W3 or W5) is pulled across the second pulley (P2) or fourth pulley (P4) is due to the sliding movement of the first transfer plate 110, and eventually the first transfer plate 110 ) And the moving distance of the second transfer plate 120 is 2: 1.

In order to make the rotational resistance of the rear pulley and the front pulley relatively larger than the rotational resistances of the first to fourth pulleys, the bearings constituting the first to fourth pulleys are used with lower rotational resistance than the bearings constituting the front and rear pulleys. Can be.

In addition, the first transfer plate 110 may be provided with a tension adjusting unit 140 to adjust the tension by tightening both ends of the wire. The tension adjusting unit 140 is made of a hook 141, one end of the wire and a fastening body 142 for fixing the hook firmly to the first transfer plate, or other fastening means such as a turnbuckle. Can be.

Meanwhile, the front and rear ends of the first and second transfer plates 110 and 120 may include a wire hole 131 through which the wire passes, and a transfer groove 132 slidingly coupled to the guiders 101a protruding to face each other from the inside of the guide rail. The transfer block 130 is formed is fixed.

As shown in FIG. 4, the conveying groove 132 of the conveying block 130 restrains the guider 101a up and down so that each conveying plate is not separated from the guide rail, while each door has a pin 13 at the bottom thereof. It is combined through) to withstand the dynamic and side loads of the door.

In addition, a wire hole 131 is formed in the transfer block 130 to become a passage through which the wire passes. In this case, since the wire passing through the wire hole 131 is prevented from being separated from the outside of the transfer block 130, the wire that is loosened during installation may be prevented from being caught in the transfer groove.

On the other hand, the transfer pulley 150 is to allow the wire passing through the wire hole inside the first, second transfer plate (110, 120) to smoothly proceed, it may be made of a pulley provided with a bearing on the rotating shaft as is known. In particular, the wire W wound before and after the second transfer plate 120 is changed by 180 degrees, so that the transfer pulley 150 is installed in this portion, thereby preventing wear due to friction of the wire, The smoother the wire, the lower the frictional resistance.

5 and 6 are exploded perspective views and cross-sectional views of a part of the sliding door interlock device shown in FIG. 1.

In order to facilitate replacement of each pulley, the first and second pulleys P1 and P2 and the front pulley Pf are provided in the front base plate 160 to form one unit. Four pulleys (P3, P4) and the rear pulley (Pr) is preferably provided in the rear base plate 170 and unitized.

That is, the front and rear base plate (160, 170) is fixed to the ceiling by installing each pulley in advance and replacing only the front base plate 160 or the rear base plate (170) containing the pulley that is broken during replacement repair of the interlocking device. It is easy to repair the interlock. At this time, the front and rear base plate may be formed with a screw hole 161 for fixing by a screw for ease of replacement.

In addition, the first to fourth pulleys (P1, P2, P3, P4) and the front and rear pulleys (Pf, Pr), the bearing is interposed to reduce the resistance to the wire, each pulley is the front base plate 160 or rear It is preferable not to rub with the base plate 170. Specifically, each pulley has a cylindrical pulley main body 162 in which a groove is wound around the outer circumferential surface, a cylindrical bearing 163 coupled to the inside of the pulley main body, and a bottom surface of the pulley main body 162 is a front base plate. The bottom bush 164 facing the lower surface of the bearing 163 and the pulley body 162, the bearing 163 and the bottom bush 164 so as to be spaced apart from the 160 or the rear base plate 170. It consists of a bolt 165 for fixing.

In this case, the bottom bush 164 contacts the inner diameter of the cylindrical bearing 163 and supports the bearing 163, and the pulley body 162 is fitted to the outer diameter of the bearing so that the rotation of the pulley body 162 is smoothly made. However, because the bottom bush 164 does not touch the front and rear base plate is to be able to significantly lower the rotational friction.

On the other hand, Figure 7 is a perspective view schematically showing the state of use of the locking beads of the interlock device for the sliding door shown in FIG.

The first and second guide rails 101 and 102 may further include a stopper block 180 fixed to both ends of a section in which the first and second transfer plates 110 and 120 are moved.

In this case, the stopper block 180 defines a movable section of the first and second transfer plates 110 and 120, and the door may be moved to a certain section even when the user operates the door by applying excessive force or when the weight of the door is large. By not departing, it is to prevent the failure of the interlock. The stopper block 180 has the same configuration as the above-described transfer block, and a wire hole and a transfer groove are formed.

Meanwhile, referring back to FIG. 2, the stopper block 180 may further include a buffer member 181 for reducing the impact sound due to the contact with the transport block. The shock absorbing member 181 is made of rubber, synthetic resin, or the like, and is fixed to the stopper block 180. In this case, even when the user opens and closes the door hardly, the noise due to the collision between the stopper block and the transfer block can be reduced. The interlock is more advanced.

Referring to FIG. 7 again, the wire W is coupled with a locking bead 190 for determining an interlocking section in which the first and second transfer plates move at a 2: 1 ratio and a linking section moving at a 1: 1 ratio. The locking ball 190 is coupled to the wire is caught in the wire hole of the transfer block in accordance with the transfer of the first and second transfer plate. The operation of the 2: 1 linkage section and the 1: 1 linkage section will be described in detail in the following operation.

Hereinafter, an operation relationship of the interlock device of the sliding door according to the embodiment of the present invention will be described with reference to the accompanying drawings.

First, the locking ball does not contact the transport block, so that the ratio of the moving distance of the first and second transport plates is maintained at a ratio of 2: 1. It will be described that the moving distance ratio is 1: 1 and the same ratio is linked.

FIG. 8 is a plan view of the interlock device for the sliding door shown in FIG. 1, and FIG. 9 is an exaggerated view of the wire connection of the interlock device for the sliding door shown in FIG.

In order to easily explain the direction, the portion where the first and second doors 10.20 overlap is defined as the rear side R of the linkage device and the other end front side F so that the double sliding door is opened.

As shown in FIG. 11, one side of the door frame in which the sliding doors are installed may be provided with a pocket 40 recessed in a wall to accommodate each door. Thus, when the sliding door is closed, the door frame 11 at the rear end of the first door 10 and the door frame at the front end of the second door 20 overlap (Fig. 11 (c)), and when the sliding door is opened, In the state where the first and second doors 10.20 are overlapped, they are completely accommodated in the pocket 40 so that a passage space can be secured to the maximum (FIG. 11A).

10A to 10C are schematic views illustrating a process of opening a sliding door using a sliding door interlock device according to an embodiment of the present invention.

Assume that the first transfer plate 110 is moved forward by two lengths in a state in which the sliding door is closed. At this time, the wire (W1) fixed to the rear end of the first transfer plate 110 is pulled by two lengths, thereby the wire (W2 in the section extending over the third, first, second pulley (P3, P1, P2) in turn) ) Is also pulled by two lengths. At this time, since the wire W4 caught on the front pulley Pf is not moved, the wire W3 spanning the second pulley P2 drawn in two lengths is free at the front end of the second transfer plate 120. Coiled to move the second transfer plate 120 forward by one length.

In another aspect, the wire W7 fixed to the front end portion of the first transfer plate 110 is pushed forward by two lengths by the first transfer plate moved forward by two lengths, and the first and the third The wire W6 in the section passing through the four pulleys P1, P3, and P4 is also moved by two lengths. Since the wire W spanned from the rear pulley Pr to the front pulley Pf is not moved, the wire W5 wound around the rear end of the second transfer plate 120 through the fourth pulley P4. By the two lengths provided by the second conveying plate 120, the wire extending from the rear end to the free end is advanced by one length. That is, the wire W6 having two lengths provided with the first conveying plate 110 being forwarded forward is formed of the wire W5 and the section extending from the fourth pulley P4 to the rear end of the second conveying plate 120. It is required to increase the length by one length in each of the wires W4 in the section spanned from the rear end of the two transfer plates 120 to the rear pulley Pr. As a result, when the two lengths of the first transfer plate 110 are moved forward, the second transfer plate 120 is moved in the forward direction by one length, and the movement ratio is maintained constant over the linkage section. That is, the 2: 1 interlocking of the first and second transfer plates 110 and 120 is made by a wire that is freely coupled to the front and rear ends of the second transfer plate 120.

On the other hand, as the second transfer plate 120 is moved forward, the locking bead 190 provided in the front portion approaches. After the locking ball 190 contacts the wire hole of the transfer block 130 coupled to the front end of the second transfer plate 120, the first and second transfer plates may be used to move forward of the first transfer plate 110. 110 and 120 are associated with a moving distance ratio of 1: 1 (see FIG. 10B).

As such, when the locking beads 190 are caught by the transfer block 130 of the front end of the second transfer plate 120, the first door fixed to the first transfer plate 110 is illustrated in FIG. 11B. (10) At this point, the door frame 11 at the rear side and the door frame 11 in front of the second door 20 fixed to the second transfer plate 120 overlap. That is, the sliding doors are interlocked at a 2: 1 and sliding, and the locking beads 190 are installed on the wire by the user so as to be caught by the transfer block 130 at the point where the front and rear door frames of the first and second doors overlap each other.

In order to explain the 1: 1 dynamic interlocking operation relationship, the first transfer plate 110 is moved forward in a state in which the engaging beads 190 are in contact with the transfer block 130 provided at the front end of the second transfer plate 120. Assume that 1 has been moved by 1 length.

The wire W1 coupled to the rear end of the first transfer plate 110 is pulled by one length, and the length of the wire W1 is pulled through the third, first and second pulleys P3, P1 and P2. The second transfer plate 120 is delivered. At this time, since the latching ball 190 is caught by the transfer block 130, the front end of the second transfer plate 120 is no longer a free end, and the second transfer plate 120 is a fixed end to which the wire is fixed. The wire W3 is moved forward by one length for pulling. In addition, the wire W4 in the section from the rear pulley (Pr) to the front pulley (Pf), because the front end of the second transfer plate 120 becomes a fixed end, the pulling force by the wire caught on the front and rear pulley (Pf, As the frictional force of Pr is won, it is rotated and forcedly moved by one length as the second transfer plate 120 moves forward. That is, the 1: 1 moving ratio linkage of the first and second transfer plates 110 and 120 is a front and rear pulleys (Pf, Pr) as the locking beads 190 are locked to the transfer block 130 of the second transfer plate 120. ) Is forcibly rotated.

Such 1: 1 dynamic interlocking is performed while moving forward by the length corresponding to the door frame of the first and second doors, until the double sliding door is completely closed as shown in FIG.

On the other hand, the opening of the door, as shown in Figure 12a to 12c, the first and second transfer plate (110, 120) is interlocked in a 2: 1 ratio and open, first, second door (10, 20) When overlapping with each other, the locking beads 190 are applied to the transfer block 130 at the rear end of the second transfer plate 120, and then the first and second transfer plates 110 and 120 are interlocked at a 1: 1 ratio so that the first and second doors are interlocked. The pocket 40 is completely received.

1 is a perspective view schematically showing an interlock device for a sliding door according to an embodiment of the present invention.

Figure 2 is a perspective view schematically showing the wire connection of the sliding device for the sliding door shown in FIG.

3 is a perspective view schematically showing a state of use of the interlock device for the sliding door shown in FIG.

4 is a cross-sectional view of a state of use of the interlock device for the sliding door shown in FIG.

Figure 5 is an exploded perspective view of a part of the sliding device for a sliding door shown in FIG.

FIG. 6 is a cross-sectional view of a portion shown in FIG. 5. FIG.

7 is a perspective view schematically showing a state of use of the locking beads of the interlock device for the sliding door shown in FIG.

8 is a plan view of the sliding device for a sliding door shown in FIG.

9 is an exaggerated view of the wire connection of the sliding door interlock device shown in FIG.

10a to 10c schematically show a process of opening a sliding door using a sliding door interlock device according to an embodiment of the present invention.

11A to 11C are schematic plan views of the sliding door corresponding to FIGS. 10A to 10C.

12A to 12C are schematic views illustrating a process of closing a sliding door using a sliding door interlock device according to an embodiment of the present invention.

13A and 13B show a pre- filed invention.

Explanation of symbols on the main parts of the drawings

1: interlock

101,102: guide rail 101a: guider 103: passing groove

104: cover F: front end R: rear end H: housing

110: first transfer plate 111: front end 112: rear end

120: second transfer plate 121: front end 122: rear end

130: transfer block 131: wire hole 132: transfer groove

W, W1 to W7: wire

140: tension control unit 141: hook 142: fastener

150: feed pulley

160: front base plate 161: screw hole 170: rear base plate

162: pulley body 162a: groove 163: bearing

164: bottom bush 165: bolt

P1: First pulley P2: Second pulley P3: Third pulley P4: Fourth pulley

Pf: Front pulley Pr: Rear pulley

180: stopper block 181: buffer member 190: locking beads

10: first door 20: second door 11: door frame 13: pin

40: pocket part

Claims (8)

First and second guide rails 101 and 102 installed side by side to form a through groove 162a; First and second transfer plates 110 and 120 sliding on the first and second guide rails 101 and 102, respectively; First and third pulleys P1 and P3 installed in front and rear of the first guide rail 101; Second and fourth pulleys P2 and P4 installed in front and rear of the second guide rail 102; A front pulley (Pf) which is inward of the first and second pulleys (P1, P2) and is installed to be biased to the second guide rail (102); A rear pulley (Pr) that is inward of the third and fourth pulleys (P3, P4) and is installed to be biased to the second guide rail (102); And It is withdrawn from the front end of the first transfer plate 110 and is wound around the first end of the second transfer plate 120 through the first, 3, 4 pulleys (P1, P3, P4) in turn, and back pulley (Pr) ), And is wound around the front end of the second conveying plate 120 through the front pulley Pf, and again through the second, 1, and 3 pulleys P2, P1, and P3 in order to the rear of the first conveying plate 110. Interlocking device for a sliding door, characterized in that it comprises a wire that is inserted into the negative, both ends are fixed to the first conveying plate 110 and the first, second conveying plate (110, 120) to interlock. In claim 1, The wire spanning the rear pulley (Pr) is passed through the through groove (162a), characterized in that over the front pulley (Pf) interlock device for a sliding door. 3. The method of claim 2, The through groove (162a) interlocking device for a sliding door, characterized in that the cover 104 is coupled to prevent foreign matter from entering. 3. The method of claim 2, The first and second pulleys (P1, P2) and the front pulley (Pf) is coupled to the front base plate 160, The third and fourth pulleys P3 and P4 and the rear pulley Pr are coupled to the rear base plate 170, The front and rear base plate (160, 170) interlocking device for a double sliding door, characterized in that a screw hole (161) is formed to be coupled before and after the first and second guide rails (101, 102). In claim 4, The first to fourth pulleys (P1, P2, P3, P4) and the front and rear pulleys (Pf, Pr) A cylindrical pulley body 162 having a groove 162a wound around an outer circumferential surface thereof; Cylindrical bearing 163 forcibly fitted inside the pulley body 162; A bottom bush 164 facing the bottom surface of the bearing 163 such that the bottom surface of the pulley body 162 is spaced apart from the front base plate 160 or the rear base plate 170; And And a bolt 165 penetrating the center of the pulley body 162, the bearing 163 and the bottom bush 164; interlocking device for a sliding door. 3. The method of claim 2, The front and rear ends of the first and second transfer plates 110 and 120 have a wire hole 131 through which the wire passes, and a transfer groove slidingly coupled to the guiders 101a protruding from each other inside the guide rail. 132, the transfer block 130 is formed is fixed, Interlocking device for a double sliding door, characterized in that the inner side of the first and second conveying plate (110, 120) is freely rotatably coupled to the conveying pulley (150) through which the wire passed through the wire hole (131). In claim 6, The first and second guide rails (101,102) interlocking device for a double sliding door further comprises a stopper block (180) fixed to both ends of a section in which the first and second transfer plates (110,120) are moved. 8. The method of claim 7, The stopper block 180 is interlocking device for a sliding door, characterized in that the buffer member 181 for reducing the impact sound due to the contact with the transfer block 130 is further provided.

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