KR102624654B1 - Buffer system of sliding door - Google Patents

Abstract

A sliding door buffering system according to an embodiment of the present invention is installed on a sliding door and a door frame to alleviate acceleration of the sliding door due to an external force, comprising: a rail mounting portion installed on the upper side of the door frame; the rail; An upper rack rail portion that is mounted on the upper end of the mounting portion and forms a rack toward the lower side, and a lower rack that is mounted on the rail mounting portion and is formed at a lower position than the upper rack rail portion and forms a rack toward the upper side. It may include a rail portion, a front roller portion mounted on the upper edge of the sliding door, a rear roller portion mounted on the upper rear portion of the sliding door, and a viscous damper portion mounted on the upper edge of the sliding door and disposed adjacent to the front roller portion. You can.

Description

Buffer system of sliding door}

The present invention relates to a sliding door buffering system, and more specifically, to a sliding door buffering system installed on a sliding door and a door frame to alleviate acceleration of the sliding door due to external force.

In general, a sliding door refers to a structure that can be opened and closed by moving the door left or right. In other words, it is called a sliding door.

There are two types of sliding doors: a manual type that opens and closes with human force, and a semi-automatic type that opens with human force but closes automatically.

The manual sliding door is widely installed in large buildings such as hospitals and government offices, elementary schools, middle and high schools, and universities. The conventional sliding door is equipped with a roller that rolls along a rail fixed to the upper part of the upper door frame. It is composed of a structure in which a roller is provided that rolls along a rail groove formed on the upper surface of the lower door frame.

The semi-automatic sliding door is configured to automatically close the sliding door after opening it using an automatic traction device that pulls the towing line with the elastic restoring force of a spring wound around the upper door frame on one side.

However, the manual sliding door of the prior art as described above is opened and closed by the strength of the force that the person who wants to open or close the door holds the handle and pushes the door toward the opening or closing direction. At this time, if the door is pushed hard, the door opens and closes. As the door opens or closes quickly and hits the left and right door frames, impact noise and vibration are generated, and there is concern that a safety accident may occur due to a person's fingers or hands becoming caught between the door and the door frame. This has been pointed out as a disadvantage, and on the contrary, if the door is pushed slightly, the door moves slowly, and as a result, it has been pointed out as a problem that the door does not open completely or the door does not close completely.

In particular, the biggest problem is that in elementary schools and universities, students frequently push manual sliding doors to open or close them, resulting in a high incidence of safety accidents.

In addition, in the semi-automatic sliding door of the prior art, when a person opens the door, the opening speed of the door is controlled by the tow line elastically drawn out from the automatic traction device, so the person opening the door is more powerful than the elastic force of the tow line pulled out from the automatic traction device. A disadvantage is that it requires strong force to open.

In addition, the semi-automatic sliding door of the prior art has upper and lower racks fixed to the upper door frame at positions offset from each other in order to cushion and control the opening and closing operation of the door when opening and closing the door. It is equipped with a gear and an oil damper, which is mounted on the top of the sliding door and has a protruding pinion that moves left and right in the opening and closing directions and engages alternately with the upper rack gear and lower rack gear, so that when the sliding door opens, Currently in use are those that allow the door to stop momentarily during the closing operation and then slowly and smoothly open and close.

Korean Patent No. 10-1430754

The purpose of the present invention is to provide a sliding door buffering system installed on a sliding door and a door frame to alleviate acceleration of the sliding door due to external force.

A sliding door buffering system according to an embodiment of the present invention is installed on a sliding door and a door frame to alleviate acceleration of the sliding door due to an external force, comprising: a rail mounting portion installed on the upper side of the door frame; the rail; An upper rack rail portion that is mounted on the upper end of the mounting portion and forms a rack toward the lower side, and a lower rack that is mounted on the rail mounting portion and is formed at a lower position than the upper rack rail portion and forms a rack toward the upper side. It includes a rail portion, a front roller portion mounted on the upper edge of the sliding door, a rear roller portion mounted on the upper rear portion of the sliding door, and a viscous damper portion mounted on the upper edge of the sliding door and disposed adjacent to the front roller portion. , the viscous damper part has a damper gear part that engages with and rotates the upper rack rail part and the lower rack rail part, and the damper gear part is in contact with the upper rack rail part or the lower rack rail part, and the sliding door When the door speed exceeds a certain speed, the speed of the sliding door can be reduced.

The viscous damper part of the sliding door buffering system according to an embodiment of the present invention is formed in a cylindrical shape, has an oil receiving part that provides a receiving space for receiving oil therein, and is formed on one side of the oil receiving part, and one side is formed in the oil receiving part. A rotating shaft portion disposed in the receiving space, the other side of which is exposed to the outside of the oil receiving portion and connected to the damper gear unit, and a space partition portion disposed in the receiving space and having a first cylinder composed of multiple stages concentric with the oil receiving portion. and a viscous friction part connected to the rotating shaft and including a second cylinder composed of multiple stages concentric with the rotating shaft, wherein at least a portion of the second cylinder is disposed to overlap the first cylinder, and the rotating shaft When the unit rotates, it is interlocked, but the rotational force can be reduced due to viscous friction with the oil located between the first cylinder and the first cylinder.

The viscous damper part of the sliding door buffering system according to an embodiment of the present invention is formed on the other side of the oil receiving part and further includes a damper control part that moves the position of the space partition by an applied external force, and the damper control part , rotated by a rotational force applied in the first rotation direction, the space partition portion moves toward the damper gear portion, thereby increasing the overlap area with the first cylinder, and a second rotation direction opposite to the first rotation direction. rotated by the applied rotational force, the space partition moves in a direction away from the damper gear unit, thereby reducing the overlap area with the first cylinder, and the second cylinder has an overlap area with the first cylinder. As it increases, the amount of rotational force reduction due to viscous friction with the oil increases, and as the overlap area with the first cylinder decreases, the amount of rotational force reduction due to viscous friction with the oil may decrease.

The damper control unit of the sliding door shock absorbing system according to an embodiment of the present invention is connected to the bolt portion formed through the other side of the oil receiving portion and the bolt portion exposed to the outside of the oil receiving portion, and is connected to the rotational force by the user. It is provided with a rotational force application part for applying the rotational force, wherein the space partition portion is fastened to the bolt portion located in the receiving space and is moved in position along the bolt portion by rotation of the rotational force application portion, and the oil accommodating portion is recessed from the inner peripheral surface. However, it has a guide portion formed continuously along the height direction, and the space partition portion has a seating portion that protrudes from the outer peripheral surface and is seated on the guide portion, and the seating portion has a space partition portion based on the oil receiving portion. It may be dependent on the guide unit during position movement, so that the rotation of the space partition unit may be restricted.

The space partition portion of the sliding door buffering system according to an embodiment of the present invention includes a fastening portion threaded to the bolt portion and a support portion disposed radially from the fastening portion and connected to the first cylinder, Each support piece constituting the support portion forms a plurality of penetrating portions formed by penetrating to provide a movement path for oil during positional movement within the receiving space, and the viscous friction portion provides a space into which the rotating shaft portion is inserted. It is composed of a space providing part, a communication part arranged radially with respect to the space providing part and having a plurality of communication holes formed by penetrating, and the second cylinder connected to the lower side of the communication part, the communication hole being, It may be a passage through which bubbles generated between the first cylinder and the second cylinder move.

The upper rack rail portion of the sliding door buffering system according to an embodiment of the present invention is connected to a first upper rack piece formed at a first height from the front of the rail mounting portion toward the rear and a rear end of the first upper rack piece, , and is provided with a second upper rack piece formed at a second height lower than the first height, wherein the second upper rack piece avoids collision with the damper gear portion when the damper gear portion enters the first height. The damper gear part is allowed to flow into the rack groove formed with the upper rack piece, and the lower rack rail part includes a first lower rack piece formed at a first height from the rear of the rail mounting portion toward the front, and the first lower rack piece. It is connected to the end of the ship and has a second lower rack piece formed at a second height lower than the first height, wherein the second lower rack piece avoids collision with the damper gear portion when entering the damper gear portion. Meanwhile, it is possible to allow the damper gear part to flow into the rack groove formed with the first lower rack piece.

The sliding door shock absorbing system according to an embodiment of the present invention includes a front roller mounting portion installed on the upper front portion of the sliding door to form a mounting space in which the front roller portion is mounted, and installed at the upper rear portion of the sliding door, where the rear roller A rear roller mounting portion forming a mounting space in which the unit is mounted, a damper mounting portion connected to the front roller mounting portion and forming a mounting space in which the viscous damper portion is mounted, installed at the rear of the rail mounting portion, and on the path of the rear roller portion. It is disposed, and can be mounted between a limit setting part for setting a position movement limit of the rear roller part, between the front roller mounting part and the sliding door, or between the rear roller mounting part and the sliding door, and at the front roller mounting part or the rear. A height adjusting part that determines the height of the roller mounting part relative to the sliding door, a rear locking part mounted on the rear roller mounting part, and a rear part of the rail mounting part, and are formed at a height corresponding to the rear locking part, It may further include a rear stopper portion that provides a space for the rear locking portion to span.

The sliding door shock absorbing system according to an embodiment of the present invention is connected to one end of the front of the rail mounting portion and further includes an external force storage portion that is elastically deformed as the sliding door moves, and the front roller mounting portion protrudes. It further includes a wire catch portion formed, wherein the external force storage portion includes an external force main portion forming an interior space, a torsion spring portion accommodated in the interior space and storing elastic force according to rotation or providing a restoring force of the stored elastic force, and the torsion. It is wound around a spring unit, with one side connected to the torsion spring unit and the other side connected to the wire catch unit, and an elasticity adjustment unit that sets the initial position of the torsion spring unit and adjusts the elastic force of the torsion spring unit. The torsion spring unit is elastically deformed as the wire portion is unwound while the sliding door is opened by an external force, and when the external force is released, the sliding door is closed while winding the unwound wire portion by a restoring force due to the elastic deformation. can do.

According to the present invention, by preventing a collision with a door frame that occurs while a sliding door is opening or a collision with a door frame that occurs while a sliding door is closing, it is possible to prevent breakage or damage to members and reduce noise caused by collisions between members. .

In addition, noise during the opening/closing process of the sliding door can be dramatically reduced by reducing noise when the gear of the damper part collides with the rack.

Additionally, the sliding door can be automatically closed through the external force accumulated in the process of opening the sliding door.

Figure 1 is a front view showing a door and a door frame on which a sliding door shock absorbing system according to an embodiment of the present invention is installed.
Figure 2 is a schematic exploded perspective view illustrating a sliding door shock absorbing system according to an embodiment of the present invention.
Figure 3 is a schematic diagram illustrating the viscous damper portion of the sliding door shock absorbing system according to an embodiment of the present invention.
Figure 4 is a schematic exploded perspective view illustrating the viscous damper portion of the sliding door shock absorbing system according to an embodiment of the present invention.
Figure 5 is a schematic diagram illustrating the space partition portion of the sliding door buffering system according to an embodiment of the present invention.
Figure 6 is a schematic diagram illustrating the viscous friction portion of the sliding door shock absorbing system according to an embodiment of the present invention.
Figure 7 is a schematic diagram illustrating the combination of the space partition portion and the viscous friction portion of the sliding door buffering system according to an embodiment of the present invention.
Figure 8 is a schematic diagram illustrating the positional movement of the oil receiving portion of the space partition portion of the sliding door buffering system according to an embodiment of the present invention.
Figure 9 is a schematic diagram illustrating the oil receiving portion and the rotational force applying portion of the sliding door shock absorbing system according to an embodiment of the present invention.
Figure 10 is a schematic diagram illustrating the upper rack rail portion and the lower rack rail portion of the sliding door shock absorbing system according to an embodiment of the present invention.
Figure 11 is a schematic diagram illustrating the external force storage part of the sliding door buffering system according to another embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention may add, change, or delete other components within the scope of the same spirit, or create other degenerative inventions or this invention. Other embodiments that are included within the scope of the invention can be easily proposed, but this will also be said to be included within the scope of the invention of the present application.

In addition, components having the same function within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.

Figure 1 is a front view showing a door and a door frame on which a sliding door buffering system according to an embodiment of the present invention is installed, and Figure 2 is a schematic exploded perspective view to explain the sliding door buffering system according to an embodiment of the present invention.

Referring to Figures 1 and 2, the sliding door buffering system (hereinafter referred to as buffering system) according to an embodiment of the present invention is installed on the sliding door (D, sliding door) and the door frame (F), and the sliding door by external force This is a system to alleviate the acceleration of (D).

The shock absorbing system (1) of the present invention is designed to separate the sliding door (D) and the door frame (F) by an external force applied when the user opens the sliding door (D) or when the user closes the sliding door (D). It is an invention to prevent breakage/damage between members due to impact and to reduce noise.

The shock absorbing system (1) of the present invention includes a rail mounting portion (10), an upper rack rail portion (20), a lower rack rail portion (30), a front roller portion (40), a rear roller portion (50), and a viscous damper portion (60). ), front roller mounting part (71), rear roller mounting part (72), damper mounting part (77), limit setting part (73), height adjustment part (74), rear locking part (75), and rear stopper part (76). It can be included.

The rail mounting portion 10 may be installed on the upper side of the door frame (F) and is placed on a path through which the sliding door (D) opens and closes.

The upper rack rail portion 20 is mounted on the upper end of the rail mounting portion 10 and can form a rack toward the lower side.

The lower rack rail part 30 is mounted on the rail mounting part 10 and is formed at a lower position than the upper rack rail part 20, and can form a rack toward the upper side.

The front roller portion 40 is mounted on the upper front portion of the sliding door D. Specifically, it can be moved along the roller insertion groove while being inserted into the roller insertion groove provided in the rail mounting portion 10.

The rear roller portion 50 is mounted on the upper rear portion of the sliding door (D). Specifically, it can be moved along the roller insertion groove while being inserted into the roller insertion groove provided in the rail mounting portion 10.

The viscous damper part 60 may be mounted on the top edge of the sliding door D and arranged adjacent to the stem roller part 40.

The viscous damper unit 60 may be moved while being in contact with the upper rack rail unit 20 or the lower rack rail unit 30 while the sliding door D is opening and closing. In this process, the buffering action of the sliding door D can be implemented by the interaction between the viscous damper part 60 and the upper rack rail part 20 or the lower rack rail part 30.

The viscous damper unit 60 may include a damper gear unit 61 that engages and rotates the upper rack rail unit 20 and the lower rack rail unit 30.

The damper gear unit 61 is in contact with the upper rack rail unit 20 or the lower rack rail unit 30, and when the sliding door D exceeds a certain speed, the sliding door D ) can reduce the speed.

The front roller mounting portion 71 may be installed on the upper front portion of the sliding door (D) to form a mounting space in which the front roller portion 40 is mounted.

The rear roller mounting portion 72 may be installed at the upper rear portion of the sliding door D to form a mounting space in which the rear roller portion 50 is mounted.

The damper mounting portion 77 may be connected to the front roller mounting portion 71 and form a mounting space in which the viscous damper portion 60 is mounted.

The limit setting unit 73 is installed at the rear of the rail mounting unit 10 and is disposed on the path of the rear roller unit 50, so that it can set a positional movement limit of the rear roller unit 50. .

The height adjustment part 74 can be mounted between the front roller mounting part 71 and the sliding door (D) or between the rear roller mounting part 72 and the sliding door (D), The height of the front roller mounting part 71 or the rear roller mounting part 72 with respect to the sliding door (D) can be determined.

The rear locking portion 75 may be mounted on the rear roller mounting portion 72.

The rear stopper portion 76 is installed at the rear of the rail mounting portion 10 and is formed at a height corresponding to the rear locking portion 75, to provide a space over which the rear locking portion 75 hangs. You can. With the rear locking portion 75 draped over the rear stopper portion 76, the sliding door D may be maintained in an open state.

The user applies an external force so that the rear locking portion 75 exceeds the rear stopper portion 76 and pulls out the rear locking portion 75 subordinate to the rear stopper portion 76, thereby removing the sliding door ( D) can be closed.

In addition, the shock absorbing system (1) of the present invention is connected to one side of the line of the rail mounting portion (10), and includes an external force storage portion (80) and a door frame (F) that are elastically deformed according to the positional movement of the sliding door (D). ) It may further include a guide roller portion 90 formed at the lower portion.

Additionally, the sliding door D may be recessed from the lower end to form a receiving groove in which the guide roller portion 90 is accommodated.

The guide roller unit 90 slides along the receiving groove while the sliding door D is sliding, so that the sliding door D can be implemented smoothly.

Figure 3 is a schematic diagram for explaining the viscous damper part of the sliding door buffering system according to an embodiment of the present invention, and Figure 4 is a schematic exploded perspective view for explaining the viscous damper part of the sliding door buffering system according to an embodiment of the present invention. am.

In addition, Figure 5 is a schematic diagram for explaining the space partition part of the sliding door buffering system according to an embodiment of the present invention, and Figure 6 is a schematic diagram for explaining the viscous friction part of the sliding door buffering system according to an embodiment of the present invention. 7 is a schematic diagram illustrating the combination of the space partition portion and the viscous friction portion of the sliding door buffering system according to an embodiment of the present invention.

And, Figure 8 is a schematic diagram for explaining the positional movement of the oil receiving part of the space partition part of the sliding door buffering system according to an embodiment of the present invention, and Figure 9 is a sliding door buffering system according to an embodiment of the present invention. This is a schematic diagram to explain the oil receiving part and the rotational force application part.

Referring to FIGS. 3 to 9, the viscous damper portion 60 of the shock absorber system 1 according to an embodiment of the present invention includes an oil receiving portion 63, a rotating shaft portion 64, and a space partition portion 65. , it may be provided with a viscous friction part (66) and a damper control part (67).

The oil receiving portion 63 is formed in a cylindrical shape and can provide a receiving space in which oil is accommodated. A fastening part 655 into which a fastening bolt is inserted may be formed on both sides of the oil receiving part 63, and the oil receiving part 63 can be mounted on the damper mounting part 77 by the fastening bolt. .

The rotating shaft portion 64 is formed on one side of the oil receiving portion 63, with one side disposed in the receiving space and the other side exposed to the outside of the oil receiving portion 63 to form the damper gear portion 61. can be connected.

The rotating shaft portion 64 may be formed through a cap forming portion that covers the open upper surface of the oil receiving portion 63, and the cap forming portion may be formed integrally with the oil receiving portion 63, or the cap forming portion may be formed integrally with the oil receiving portion 63. It may be formed to be mounted on the upper part of the receiving portion 63.

Here, when the cap forming part is formed to be attachable to the upper part of the oil receiving part 63, a rubber ring part 68 may be formed in order to maintain airtightness between the cap forming part and the oil receiving part 63. there is.

When the damper gear unit 61 is rotated while engaged with the upper rack rail unit 20 or the lower rack rail unit 30, the rotation shaft unit 64 may also be rotated in conjunction with it.

The space dividing portion 65 is disposed in the receiving space and may include a first cylinder 651 composed of multiple stages concentric with the oil receiving portion 63.

In the first cylinder 651, a plurality of ring-shaped cylinders of different sizes are arranged in concentric multi-stages, and are spaced apart from each other so that oil is disposed in the space.

The viscous friction portion 66 is connected to the rotation shaft portion 64 and may include a second cylinder 661 composed of multiple stages concentric with the rotation shaft portion 64.

In the second cylinder 661, a plurality of ring-shaped cylinders of different sizes are arranged in concentric multi-stages, and are spaced apart from each other so that oil is disposed in the space.

The second cylinder 661 is arranged to overlap at least a portion of the first cylinder 651, and is interlocked when the rotation axis portion 64 is rotated, and is located between the first cylinder 651 and the second cylinder 661. Rotational force can be reduced due to viscous friction with oil.

Specifically, the multi-stage members of the second cylinder 661 are located in the space between the multi-stage members of the first cylinder 651, and the first cylinder 651 Oil is located in the overlapped area of the second cylinder 661.

When the viscous friction part 66 rotates according to the rotation of the rotation shaft part 64, the first cylinder 651 is also rotated, and at this time, the viscosity is generated by the oil located between the second cylinder 661. Friction occurs. Viscous friction increases as the area in contact with the viscous oil increases. The first cylinder 651 and the second cylinder 661 of the present invention can maximize this effect by positioning the oil between a plurality of cylinders. there is.

The viscous damper part 60 is formed on the other side of the oil receiving part 63 and may further include a damper adjusting part 67 that moves the space partition 65 by an applied external force. .

The damper control unit 67 is rotated by a rotational force applied in the first rotation direction, so that the space partition unit 65 moves toward the damper gear unit 61 and overlaps with the first cylinder 651. The area can be increased.

In addition, the damper control unit 67 is rotated by a rotational force applied in a second rotation direction opposite to the first rotation direction, so that the space partition unit 65 moves away from the damper gear unit 61. By moving in this direction, the overlapping area with the first cylinder 651 may be reduced.

As the overlap area of the second cylinder 661 with the first cylinder 651 increases, the amount of rotational force reduction due to viscous friction with oil may increase. Specifically, as the overlapping area with the first cylinder 651 increases, the area for increasing viscous friction increases, thereby hindering the rotational force and increasing the speed reduction effect.

Additionally, as the overlap area of the second cylinder 661 with the first cylinder 651 decreases, the amount of rotational force reduction due to viscous friction with oil may decrease. Specifically, as the overlap area with the first cylinder 651 decreases, the area that increases viscous friction becomes smaller, so the speed reduction effect due to rotational force interference can be reduced.

The user can adjust the effect of the damper or the speed of automatic closing according to the weight of the sliding door (D) by controlling the effect of reducing the rotational force by the damper control unit 67.

The damper control unit 67 may include a bolt unit 671 and a rotational force application unit 673.

The bolt portion 671 may be formed to penetrate the other side of the oil receiving portion 63.

The rotational force application unit 673 may be connected to the bolt portion 671 exposed to the outside of the oil receiving portion 63, and a rotational force may be applied by the user. The rotational force application part 673 has a concavo-convex shape along its outer circumferential surface, so that when the user rotates it, a wrinkle part 673a may be formed that increases friction and facilitates the application of external force.

The space partition portion 65 may be moved along the bolt portion 671 by rotation of the rotational force application portion 673 while being fastened to the bolt portion 671 located in the receiving space.

The oil receiving portion 63 may be recessed from the inner peripheral surface and may be provided with a guide portion 631 formed continuously along the height direction.

The space partition portion 65 may include a seating portion 653 that protrudes from the outer peripheral surface and is seated on the guide portion 631.

The seating portion 653 is dependent on the guide portion 631 while the space dividing portion 65 moves relative to the oil receiving portion 63, thereby limiting the rotation of the space dividing portion 65. It can be done as much as possible.

Accordingly, while the viscous damper part 60 is rotating, the viscous friction of the oil between it and the space partition part 65 can be maximized.

The seating portion 653 may include a first seating piece 653a having a first width and a second seating piece 653b having a second width wider than the first width.

In addition, the guide portion 631 includes a first guide piece 631a formed in a shape corresponding to the first seating piece 653a and a second guide piece formed in a shape corresponding to the second seating piece 653b. A guide piece 631b may be provided.

A plurality of first seating pieces 653a may be formed along the outer peripheral surface of the space partition 65, and a single second seating piece 653b may be formed.

Accordingly, the first guide piece 631a may be formed in plural and the second guide piece 631b may be formed in a single number. In order to interconnect the seating portion 653 and the guide portion 631, This is implemented by inserting the second seating piece 653b into the second guide piece 631b.

This defines the initial position of the space partition part 65, so that the lifting position by the bolt part 671 is a preset position.

The space partition portion 65 may include a fastening portion 655 and a support portion 656.

The fastening part 655 may be threadedly fastened to the bolt part 671, and the support part 656 is disposed radially from the fastening part 655 and connected to the first cylinder 651. A support portion 656 may be provided.

The space dividing portion 65 is threadedly moved along the fastening portion 655 according to the rotation of the rotational force applying portion 673 and can be raised and lowered.

Each support piece constituting the support portion 656 may form a plurality of penetrating portions 656a, which may provide a path for oil to move during positional movement within the receiving space.

The viscous friction part 66 may be composed of a space providing part 663, a communication part 665, and a second cylinder 661.

The space providing portion 663 is formed in a shape corresponding to the rotation shaft portion 64 and can provide a space into which the rotation shaft portion 64 is inserted, and is interlocked with the rotation of the rotation shaft portion 64. An oval or an angle may be formed.

The communication part 665 is arranged radially with respect to the space providing part 663 and may include a plurality of communication holes 665a formed through the space providing part 663.

The second cylinder 661 may be connected to the lower side of the communication part 665 (based on drawing (b) of FIG. 6).

The communication hole 665a may be a passage through which air bubbles generated between the first cylinder 651 and the second cylinder 661 move. This causes the air bubbles that can stay between the first cylinder 651 and the second cylinder 661 to move, thereby creating a viscous friction effect between the first cylinder 651 and the second cylinder 661. Prevent it from decreasing.

Meanwhile, referring to FIG. 9, a fitting response portion 634 may be formed on the bottom of the bolt portion 671 by being recessed.

The rotational force application portion 673 protrudes from an opposing surface facing the bottom of the oil receiving portion 63, and a fitting portion 673b having a shape corresponding to the fitting corresponding portion 634 may be formed.

The fitting portion 673b may allow the bolt portion 671 to rotate in conjunction with the rotation of the rotational force application portion 673 while being inserted into the fitting corresponding portion 634, and includes an angle. It can be formed in a shape to transmit rotational force.

Additionally, the rotational force application part 673 may have a locking part 673c that protrudes from the inner peripheral surface of the edge forming the wrinkle part 673a.

A protruding engaging portion 635 may be formed on the bottom of the oil receiving portion 63.

The locking portion 673c may be in contact with the locking response portion 635 while the turning force applying portion 673 is rotating, thereby restricting the rotation of the turning force applying portion 673.

Specifically, while the user rotates the rotational force application unit 673 in the first rotation direction, if the locking portion 673c comes into contact with one side of the locking response portion 635, the rotational force application portion 673 If the rotation in the first rotation direction is restricted and the locking portion 673c comes into contact with the other side of the locking response portion 635 while rotating the rotational force application part 673 in the second rotation direction, , rotation of the rotational force applying unit 673 in the second rotation direction may be restricted.

Accordingly, by defining the lifting and lowering position of the space partition 65, it is possible to implement the lifting and lowering of the space partition 65 to an optimized position within the accommodating space of the oil receiving part 63.

Figure 10 is a schematic diagram illustrating the upper rack rail portion and the lower rack rail portion of the sliding door buffering system according to an embodiment of the present invention.

Referring to FIG. 10, the upper rack rail portion 20 of the shock absorber system 1 according to an embodiment of the present invention may be provided with a first upper rack piece 21 and a second upper rack piece 22.

The first upper rack piece 21 may be formed at a first height from the front of the rail mounting portion 10 toward the rear.

The second upper rack piece 22 is connected to the rear end of the first upper rack piece 21 and may be formed to have a second height lower than the first height.

When the second upper rack piece 22 enters the damper gear portion 61, collision with the damper gear portion 61 is avoided and the second upper rack piece 22 moves into the rack groove formed with the first upper rack piece 21. It is possible to allow the damper gear unit 61 to flow in.

If the upper rack rail part 20 is composed only of racks of the same height, when the upper rack rail part 20 and the damper gear part 61 meet, the rack at the rear end of the upper rack rail part 20 As the damper gear unit 61 collides, breakage/damage and noise generation due to collision between members cannot be avoided.

The lower rack rail portion 30 may include a first lower rack piece 31 and a second lower rack piece 32.

The first lower rack piece 31 may be formed at a first height from the rear of the rail mounting portion 10 toward the front portion.

The second lower rack piece 32 is connected to the end of the first lower rack piece 31 and may be formed to have a second height lower than the first height.

When the second lower rack piece 32 enters the damper gear portion 61, collision with the damper gear portion 61 is avoided and the second lower rack piece 32 moves into the rack groove formed with the first lower rack piece 31. The damper gear unit 61 may be allowed to flow in.

If the lower rack rail part 30 is composed only of racks of the same height, when the lower rack rail part 30 and the damper gear part 61 meet, the rack at the end of the lower rack rail part 30 As the damper gear unit 61 collides, breakage/damage and noise generation due to collision between members cannot be avoided.

Figure 11 is a schematic diagram illustrating the external force storage part of the sliding door buffering system according to another embodiment of the present invention.

Referring to FIG. 11, the external force storage unit 80' according to another embodiment of the present invention is connected to one end of the line of the rail mounting unit 10, and elastically moves according to the positional movement of the sliding door D. It can be transformed.

The front roller mounting portion 71 may further include a protruding wire catching portion 711.

The external force storage unit 80 may include an external force main body 81, a torsion spring unit (not shown), a wire unit 85, and an elastic adjustment unit 87.

The external force main body 81 may form an internal space.

The torsion spring unit is accommodated in the internal space, and can store elastic force or provide restoration force of the stored elastic force as it rotates.

The wire portion 85 may be wound around the torsion spring portion, with one side connected to the torsion spring portion and the other side connected to the wire catch portion 711.

The elasticity adjusting unit may adjust the elastic force of the torsion spring unit by setting the initial position of the torsion spring unit.

The torsion spring part is elastically deformed as the wire part 85 is unwound while the sliding door D is opened by an external force, and when the external force is released, the wire part 85 is unwound by a restoring force caused by the elastic deformation. The sliding door (D) can be closed while winding.

In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and various changes or modifications may be made within the spirit and scope of the present invention. It is obvious to those skilled in the art, and therefore, it is stated that such changes or modifications fall within the scope of the appended patent claims.

1: Sliding door buffer system D: Sliding door
F: Door frame 10: Rail mounting part
20: Upper rack rail section 21: First upper rack section
22: Second upper rack piece 30: Lower rack rail section
31: 1st lower rack 32: 2nd lower rack
40: front roller part 50: rear roller part
60: Viscous damper part 61: Damper gear part
63: Oil receiving part 64: Rotating shaft part
65: space partitioning part 66: viscous friction part
67: Damper adjustment part 68: Rubber ring part
71: Front roller mounting part 72: Rear roller mounting part
73: Limit setting unit 74: Height adjustment unit
75: rear locking portion 76: rear stopper portion
77: Damper mounting part 80: External force storage part
81: External force main body 85: Wire portion
87: elastic adjustment part 90: guide roller part

Claims (8)

In the sliding door buffer system installed on the sliding door and the door frame to alleviate acceleration of the sliding door due to external force,
A rail mounting portion installed on the upper side of the door frame;
an upper rack rail portion mounted on the upper end of the rail mounting portion and forming a rack toward the lower side;
a lower rack rail portion mounted on the rail mounting portion, formed at a lower position than the upper rack rail portion, and forming a rack toward the upper side;
A front roller unit mounted on the upper front portion of the sliding door;
A rear roller unit mounted on the rear top of the sliding door; and
It includes a viscous damper part mounted on the upper edge of the sliding door and disposed adjacent to the edge roller part,
The viscous damper part,
It has a damper gear part that rotates in engagement with the upper rack rail part and the lower rack rail part,
The damper gear part,
When the sliding door exceeds a certain speed while in contact with the upper rack rail or the lower rack rail, the speed of the sliding door is reduced,
The viscous damper part,
An oil receiving portion that is formed in a cylindrical shape and provides a receiving space for receiving oil therein,
A rotating shaft portion formed on one side of the oil receiving portion, one side of which is disposed in the receiving space and the other side exposed to the outside of the oil receiving portion to which the damper gear portion is connected,
A space partitioning portion disposed in the receiving space and including a first cylinder composed of multiple stages concentric with the oil receiving portion, and
A viscous friction portion connected to the rotating shaft portion and having a second cylinder composed of multiple stages concentric with the rotating shaft portion,
The second cylinder is,
At least a portion is disposed to overlap the first cylinder, and is interlocked when the rotation axis rotates, so that the rotational force is reduced by viscous friction with the oil located between the first cylinder,
The viscous damper part,
It is formed on the other side of the oil receiving part and further includes a damper control part that moves the position of the space partition by an applied external force,
The damper control unit,
Rotated by a rotational force applied in the first rotation direction, the space partition unit moves toward the damper gear unit, thereby increasing the overlap area with the first cylinder,
Rotated by a rotational force applied in a second rotation direction opposite to the first rotation direction, the space partition portion moves in a direction away from the damper gear portion to reduce the overlap area with the first cylinder,
The second cylinder is,
As the overlapping area with the first cylinder increases, the amount of rotational force reduction due to viscous friction with the oil increases, and as the overlapping area with the first cylinder decreases, the amount of rotational force reduction due to viscous friction with the oil decreases,
The damper control unit,
A bolt portion formed through the other side of the oil receiving portion and
It is connected to the bolt part exposed to the outside of the oil receiving part and has a turning force application part to which a turning force by a user is applied,
The space division unit,
While fastened to the bolt part located in the receiving space, the position is moved along the bolt part by rotation of the rotational force application part,
The oil receiving part,
It is indented from the inner peripheral surface and has a guide portion formed continuously along the height direction,
The space division unit,
It has a seating portion that protrudes from the outer peripheral surface and is seated on the guide portion,
The seating part,
The space partition unit is dependent on the guide part while the position is moving relative to the oil receiving part, so that the rotation of the space partition unit is restricted,
The space division unit,
A fastening part threaded to the bolt part and
It is disposed radially from the fastening part and has a support part connected to the first cylinder,
Each support piece constituting the support portion forms a plurality of penetrating portions, and provides a movement path for oil during positional movement within the receiving space,
The viscous friction part,
A space providing part that provides a space into which the rotating shaft part is inserted,
A communication part disposed radially with respect to the space providing part and having a plurality of communication holes formed through the space providing part, and
Consisting of the second cylinder connected to the lower side of the communication part,
The communication hole is,
A sliding door shock absorbing system, characterized in that it is a passage through which air bubbles generated between the first cylinder and the second cylinder move.
delete delete delete delete According to paragraph 1,
The upper rack rail part,
A first upper rack piece formed at a first height from the front of the rail mounting portion toward the rear, and
A second upper rack piece is connected to the rear end of the first upper rack piece and has a second height lower than the first height,
The second upper rack piece allows the damper gear portion to enter the rack groove formed with the first upper rack piece while avoiding collision with the damper gear portion when the damper gear portion enters,
The lower rack rail part,
A first lower rack piece formed at a first height from the rear of the rail mounting portion toward the front portion, and
A second lower rack piece is connected to the end of the first lower rack piece and has a second height lower than the first height,
The second lower rack piece is characterized in that it allows the damper gear portion to enter the rack groove formed with the first lower rack piece while avoiding collision with the damper gear portion when entering the damper gear portion. Sliding door shock absorbing system.
According to paragraph 1,
A front roller mounting portion installed on the upper front portion of the sliding door and forming a mounting space in which the front roller portion is mounted;
A rear roller mounting portion installed at the upper rear of the sliding door to form a mounting space in which the rear roller portion is mounted;
A damper mounting portion connected to the front roller mounting portion and forming a mounting space in which the viscous damper portion is mounted;
A limit setting unit installed at the rear of the rail mounting unit and disposed on a path of the rear roller unit to set a position movement limit of the rear roller unit;
A height adjustment unit that can be mounted between the front roller mounting unit and the sliding door or between the rear roller mounting unit and the sliding door, and which determines the height of the front roller mounting unit or the rear roller mounting unit with respect to the sliding door;
a rear locking portion mounted on the rear roller mounting portion; and
A sliding door shock absorbing system further comprising a rear stopper portion installed at the rear of the rail mounting portion, formed at a height corresponding to the rear locking portion, and providing a space over which the rear locking portion spans.
In clause 7,
It further includes an external force storage unit connected to one end of the line of the rail mounting unit and elastically deformed as the sliding door moves,
The front roller mounting portion further includes a wire hook portion formed to protrude,
The external force storage unit,
The external force main body forming the internal space,
A torsion spring unit accommodated in the internal space and storing elastic force according to rotation or providing restoration force of the stored elastic force,
A wire portion wound around the torsion spring portion, one side connected to the torsion spring portion, and the other side connected to the wire catch portion;
An elasticity control unit is provided to set the initial position of the torsion spring unit and adjust the elastic force of the torsion spring unit,
The torsion spring part,
A sliding door characterized in that, while the sliding door is opened by an external force, the wire portion is unwound and elastically deformed, and when the external force is released, the sliding door is closed while winding the unwound wire portion by a restoring force caused by the elastic deformation. Shock absorbing system.

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