KR101174852B1 - sliding door assembly - Google Patents

Abstract

Sliding door assembly according to the present invention comprises a sliding door assembly coupled to the door frame, a pair of side chassis coupled to the side door frame; A lower chassis coupled to the lower frame and having a guide rail formed thereon; An upper chassis coupled to the upper chassis and having a guide rail formed thereon; A door defining an opening and slidingly coupled to the guide rails of the lower chassis and the upper chassis, respectively, the door having a locking protrusion formed thereon; And an elastic closure part provided in at least one of the pair of side chassis to elastically press the door in a closing direction of the door, and coupled to the locking protrusion to close the door to the side chassis of the door. It includes an automatic closing member having a shock absorbing portion for absorbing the operating shock of.

Sliding door assembly according to the present invention simplifies the configuration of the door buffer portion, significantly reduces the volume occupied by the associated parts, and can reduce the cost cost and production cost because the configuration of the buffer portion of a simpler structure than the conventional configuration is used It works.

Shock Absorber, Sliding Door, Time Belt, One-Way Rotation Damper

Description

Sliding door assembly

The present invention relates to a sliding door assembly, and more particularly to a sliding door assembly that provides a simplified configuration in the semi-automatic door assembly to provide a buffer for relieving the movement force of the door during the closing movement of the door.

In general, the door assembly is installed in the partitioned space. The door assembly is divided into a sliding door assembly and a sliding door assembly according to the opening and closing method. The sliding door assembly slides the door to open and close the opening, and the sliding door assembly rotates the door to open and close the opening.

      Generally, sliding door assemblies are mounted between the front door and the living room and between the living room and the balcony. The conventional sliding door assembly includes a door chassis that forms an opening, and partial doors that open and close the opening by dividing the opening into a plurality of areas, and there are automatic, semi-automatic, and manual methods according to the operation method.

Among the conventional sliding door assemblies, the semi-automatic sliding door assembly is opened by the user by grasping and opening a partial door, and when the user releases the door, the partial door is automatically closed. The hydraulic door is connected to the upper part of the partial door. Or it is configured to close the partial door smoothly by canceling the force to move the door in the closing direction by the pressure.

However, in the conventional semi-automatic sliding door assembly, compared to its function, a shock absorber such as a cylinder device occupies a large volume in the entire door assembly, thereby increasing the cost, and inefficient problem of high repair cost in case of failure. There is this.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a sliding door assembly having a small-sized shock absorbing portion that smoothly attenuates the closing movement force of the door and stably induces the door to be closed. have.

Sliding door assembly according to the present invention comprises a sliding door assembly coupled to the door frame, a pair of side chassis coupled to the side door frame; A lower chassis coupled to the lower frame and having a guide rail formed thereon; An upper chassis coupled to the upper chassis and having a guide rail formed thereon; A door defining an opening and slidingly coupled to the guide rails of the lower chassis and the upper chassis, respectively, the door having a locking protrusion formed thereon; And an elastic closure part provided in at least one of the pair of side chassis to elastically press the door in a closing direction of the door, and coupled to the locking protrusion to close the door to the side chassis of the door. It includes an automatic closing member having a shock absorbing portion for absorbing the operating shock of.

The elastic closure portion, and a power transmission member coupled to the locking projection; A spring that provides an elastic force to the power transmission member in the closing direction of the door; It is preferable to include a spring support wheel for supporting the spring.

The elastic closure part may further include an elastic force control unit for adjusting the elastic force of the spring.

The elastic force control unit, the head portion having a non-circular shape and rotates with the spring support wheel; It is preferable to include a stopper which presses and supports the outer peripheral surface of the head part to prevent rotation.

The shock absorbing portion is coupled to the locking projection and one end of the power transmission member is provided to be fixed and wound on the mainspring support wheel, and the gear connected to the shaft is engaged with the power transmission member to open the door at no load. It is preferable to include a one-way rotary damper configured to rotate freely and rotated under a certain load when the door is closed, thereby reducing the closing movement force of the door.

Preferably, the power transmission member is a time belt in which an uneven gear is formed at a side of meshing with the gear of the one-way rotation damper.

The uneven gear is generated at an arbitrary starting point to attenuate the closed moving force of the door so that the closed moving force of the door can be sequentially reduced, and the number of the uneven gears intermittently toward the one end coupled to the locking projection Can increase.

The uneven gear may be generated at an arbitrary starting point for reducing the closing movement force of the door, and the number of the uneven gear may be constant toward the one end coupled to the engaging protrusion.

The door includes at least a first door, a second door, and a third door that are sequentially overlapped in the opening direction to divide and open the opening; A pair of pulleys spaced apart along the opening and closing direction of the second door, a belt coupled to the pair of pulleys, and a transfer force of the belt is transmitted to the first door and the third door. It may further comprise an interlocking portion having a coupling member.

The automatic closing member may be provided in the pair of side chassis, respectively.

The sliding door assembly according to the present invention simplifies the configuration of the door shock absorber through a power transmission member such as a one-way rotary damper and a time belt without a complicated device such as an air cylinder, and dramatically reduces the volume occupied by related parts, There is an effect of improving the reliability.

In addition, since the structure of the shock absorber having a simpler structure than that of the conventional structure is used, there is an effect of reducing the cost cost and manufacturing cost.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 is a perspective view showing a configuration of a sliding door assembly according to the present invention, Figure 2 is a schematic view showing a side configuration of a sliding door assembly according to the present invention, Figures 3a and 3b is a sliding door assembly according to the present invention 4A is a perspective view of an automatic closing member of a sliding door assembly according to a preferred embodiment of the present invention, and FIG. 4B is an automatic closing member of a sliding door assembly according to a preferred embodiment of the present invention. 5A and 5B are side views illustrating embodiments of a power transmission member according to the present invention.

As shown, the sliding door assembly 100 according to the present invention is a pair of side chassis 110 coupled to the side of the door frame to form an opening of the place to be installed, and the lower chassis coupled to the lower frame 300 ( 120 and a plurality of doors coupled between the upper chassis 200 and the lower chassis 120 coupled to the upper door frame (not shown) to open or close the openings, and provided with locking protrusions 432 and 432 'on the upper sides of the plurality of doors. 130,140,150).

An upper cutout groove (not shown) corresponding to a moving path of the doors 130 and 150 is formed on the upper chassis 200 so that the locking protrusions 432 and 432 'passing through the cutting grooves as the doors 130 and 150 move. It moves along the upper chassis 200 along.

At this time, although not shown, a separate upper chassis may serve as a cover to protect the power transmission members 421 and 421 'and the automatic closing members 400 and 400' on the upper chassis 200.

The side chassis 110 is coupled to the side of the door frame forming an opening in which the sliding door assembly 100 is to be installed. The side chassis 110 contacts the first door 130 and the third door 150 when the plurality of doors 130, 140, and 150 are closed.

The lower chassis 120 and the upper chassis 200 are coupled to the lower section frame 300 and the upper door frame (not shown), respectively, and a guide rail 121 having a rail groove is formed. The lower chassis 120 according to the present invention may be provided to be cut to fit the size of the lower frame 300 during construction, it may be manufactured and combined by a separate extrusion material. That is, it is not manufactured and supplied according to the specification of the place to be installed, and can be directly cut and used according to the installation place. The lower chassis 120 is formed with a guide rail 121 for guiding the wheel (135b) of the car door unit (135). The guide rails 121 are formed at the same interval when three doors 130, 140, 150 are provided as in the preferred embodiment of the present invention.

The side chassis 110, the lower chassis 120, and the upper chassis 200 may be provided by extruding or molding various materials such as wood, aluminum, and steel.

The doors 130, 140, and 150 are movably coupled between the lower chassis 120 and the upper chassis 200.

To this end, the upper chassis 200 is formed with a rail groove for receiving the roller unit 133 of the doors (130, 140, 150). The rail groove is formed to a certain length deeper than the height of the roller unit 133. This is to give a predetermined gap play to facilitate the engagement of the doors (130, 140, 150).

Sliding door assembly 100 according to a preferred embodiment of the present invention is provided with three doors (130, 140, 150). The first door 130 may include a door body for dividing and opening an opening area, a roller unit 133 provided on an upper end surface of the door body and movably accommodated in a rail groove of the upper chassis 200, and a door body. It is provided on the bottom surface includes a door car unit 135 is movably coupled to the guide rail 121 of the lower chassis (120). The door body is provided in a plate shape and moves left and right along the lower chassis 120 and the upper chassis 200. The door body may be provided with various materials such as wood, steel, aluminum. A door panel made of glass or the like is provided in the central area of the door body.

The roller unit 133 is coupled to the top surface of the door body as shown in enlarged in FIG. The roller unit 133 is coupled to the door body 133a, the rotating shaft 133b coupled to the coupling portion 133a perpendicularly, and the roller 133c coupled to the outer circumference of the rotating shaft 133b and freely rotated. ). The roller 133c moves transversely to the moving direction of the doors 130, 140 and 150 along the rotation shaft 133b. The diameter of the roller 133c is provided to correspond to the width of the rail groove of the upper chassis 200. When the user presses the door body, the roller 133c rotates in contact with the inner wall surface of the rail groove so that the door body moves linearly.

Here, the roller unit 133 may be provided in various ways according to the diameter of the roller, the operator can be attached to the door by selecting a diameter suitable for the width of the upper chassis and the door at the work site.

 The coupling part 133a fixes the roller 133c to the top surface of the first door 130. Coupling portion 133a is mounted to the top surface of the first door 130 by a coupling means such as screws or rivets.

 The door-to-door unit 135 is coupled to the lower end of the first door 130 to allow the first door 130 to move along the lower chassis 120. The door car unit 135 is a door car body 135a accommodated in the lower region of the first door 130, and a wheel 135b rotatably coupled in the car door body 135a and moving along the guide rail 121. It includes.

Since the second door 140 and the third door 150 have the same configuration as the first door 130, detailed description thereof will be omitted. The first door 130, the second door 140, and the third door 150 are closed by dividing the openings, and open the openings according to the pressure of the user.

As shown in Figures 4a and 4b, the automatic closing member (400,400 ') is composed of an elastic closing portion and a buffer portion, the elastic closing portion of the first door 130 and the third door 150 side in this embodiment The pair of side chassis 110 is provided, but is provided in at least one side chassis 110, such as provided in any one side chassis 110 of the first door 130 and the third door (150) The first door 130 and the third door 150 are elastically pressed in the closing direction, and the shock absorbing portion is coupled to the locking protrusions 432 and 432 'so that the door hits the side chassis 110 when the door is closed. It functions to absorb the operation (closed) impact of the door against the side chassis 110 when healed.

The elastic closure portion is housed in the casing 410. The casing 410 is provided in a box shape and mounted on an inner side surface of the side chassis 110, but may be installed at an edge side of the upper chassis 200. The first accommodating part accommodating the elastic closure part is formed inside the casing 410.

The elastic closure part includes a power transmission member 421 engaged with the locking protrusion 432 and the locking hole 421a provided in the first door 130, and the first receiving part is accommodated in the door to the power transmission member 421. A spring spring 422 providing elastic force in the closing direction of the 130, 140, and 150, and a spring spring 422 wound thereon, and a spring support wheel 423 supporting the spring spring 422 with respect to the first receiving portion.

One end of the power transmission member 421 is provided in a ring shape, and the other end of the power transmission member 421 is wound around the outer circumferential surface of the spring support 423.

The spring spring 422 is wound around the spring support wheel 423, and the elastic force is overcome or recovered depending on whether the doors 130, 140, and 150 are opened or closed.

The self-supporting wheel 423 is rotatably coupled to the casing 410, and is supported by an elastic force adjusting unit 424 described below so as not to rotate arbitrarily.

The elastic closure part may further include an elastic force adjusting part 424 for adjusting the elastic force of the spring spring 422. The elastic force adjusting unit 424 has a non-circular shape and has a head portion 425 that rotates together with the spring support wheel 423 and a stopper 426 that presses and supports the outer circumferential surface of the head portion 425 to prevent rotation. Include.

The head portion 425 is disposed to be exposed to the outside of the casing 410. The head portion 425 is preferably provided in a regular polygonal shape so as to adjust the elastic force of the spring spring 422 step by step, it is preferable that grooves are formed on each side to improve the bearing capacity of the stopper 426. .

A coupling groove 425a having a predetermined shape is formed in the plate surface of the head portion 425. Thus, the user can rotate the head portion 425 by using a tool such as a screwdriver that is fit-fitted to the coupling groove 425a.

One end of the stopper 426 is fixed to the casing 410, and the other end contacts and supports the side or edge area of the head 425. Thus, it is possible to maintain the elastic force of the spring spring 422 adjusted by the user.

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The shock absorbing portion is the power transmission member 421, one end of which is coupled to the locking projection 432 and the other end is fixed to the main support wheel 423 and wound, and in one direction in which the door is closed according to a setting. That is, one-way rotation damper 480 that provides resistance to rotation of the shaft to provide resistance in the opposite direction of the door closing movement.

The rotary damper 480 is a one-way rotary damper that is freely rotated in the present embodiment at no load when rotated in the clockwise direction but generates resistance when rotated in the counterclockwise direction.

That is, the rotation damper 480 is a component that attenuates the closing movement force so that the door is closed and does not impact the contact with the side chassis 110 when the door is closed. The connected gear 480a meshes with the uneven gear of the power transmission member 421 to freely rotate at no load when the first door 130 is opened and rotate with a certain load when the first door 130 is closed. It is composed.

The power transmission member 421 is a time belt having an unevenness formed on the side engaging with the gear 480a of the one-way rotation damper, and may be made of a hard rubber or metal material capable of withstanding tension in the longitudinal direction.

As shown in Fig. 5A, the uneven gear is generated at an arbitrary starting point P1 for attenuating the closing movement force of the door and toward one end (locking hole 421a, 421a ') coupled to the locking projection 432. Increasingly, the number of uneven gears may be constant.

As shown in FIG. 5B, the uneven gear is generated at an arbitrary starting point P2 that attenuates the closing movement force of the door so as to sequentially reduce the closing movement force of the door, and is coupled to the locking projection 432. The number of the uneven gears may increase intermittently toward the one end (locking hole 421a, 421a ').

The length from the start points P1 and P2 to the locking holes 421a and 421a 'varies depending on the size of the door, but is usually 300 to 500 mm, preferably about 400 mm.

Here, the uneven gear is not formed on the entire length of the time belt, which is the power transmission member 421, and the reason why it is formed at an arbitrary starting point (P1, P2) is that after the door is opened, the hand holding the door is released. The door starts to move quickly in the closing direction, and before the door is closed, the uneven gears of the random starting points P1 and P2 are engaged with the gears 480a of the one-way rotary damper 480, so that the rotational resistance of the rotary damper 480 is transmitted to the door. Will push in the direction opposite to the direction of closing. Accordingly, the door smoothly contacts and closes the side chassis 110 while overcoming the movement resistance through the power transmission members 421 and 421 'connected to the one-way rotation damper 480.

In addition, to facilitate this operation, and the power transmission member (421,421 ') is smoothly wound on the spring support wheel 423 is engaged with the uneven gear of the power transmission member (421,421') to switch and guide the direction of movement. An auxiliary gear 490 is provided.

The automatic closing member may be provided on the side chassis 110 on the side of the first door 130 as well as on the side chassis 110 on the side of the third door 150, the configuration of which is as described above.

 On the other hand, the present invention is a pair of pulleys (161,163) provided in the present embodiment spaced apart along the opening and closing direction on the upper portion of the second door 140, the belt 165 coupled to the pair of pulleys, It may further include an interlocking portion 160 having a coupling member for transmitting the movement force of the belt to the first door 130 and the third door 150.

The interlocking part 160 is provided in the second door 140 to allow the remaining doors 130, 140, and 150 to move in association with the opening and closing movement of the first door 130 or the third door 150. The interlocking part 160 includes a pair of belt pulleys 161 and 163 spaced apart from each other on the upper portion of the second door 140, a belt 165 coupled to the pair of belt pulleys 161 and 163, and a belt 165. And a pair of transmission members 167 and 169 for transmitting the moving force to the first door 130 and the third door 150, respectively.

  The pair of belt pulleys 161 and 163 are disposed between the pair of roller units 133 disposed on the upper side of the second door 140. The belt 165 is coupled to the outer circumference of the belt pulleys 161 and 163 so that the pair of belt pulleys 161 and 163 rotates with each other. Belt 165 according to the present invention is provided with a wire can be used by adjusting the length according to the width of the second door (140).

One end of the first transfer member 167 is coupled to the belt pulleys (161, 163) and the other end is coupled to the third door (150). One end of the second transfer member 169 is coupled to the belt pulleys 161 and 163 and the other end is coupled to the first door 130. The transmission members 167 and 169 are provided as a clip-shaped coupling piece having an approximately 'I' shape to transfer the moving force of the belt 165 to the first door 130 or the third door 150.

6 is a plan view showing another embodiment of the transfer member in the linkage according to the invention, Figures 7a and 7b is an operating state diagram showing the operation of the sliding door assembly to which the transfer member of Figure 6 is applied.

The transmission members 167 and 169 may have a shape of “I” on a plane as in FIG. 1, but for coupling between the linkage unit 160, the first door 130, and the third door 150 in the field. For ease of construction, it is preferably made of "U" shaped synthetic resin material 340, 350 as shown in Figure 6 on the first door 130 and the third door 150 as shown in Figure 7a and 7b, respectively The interlocking portion 160 of another preferred embodiment may be configured by being directly inserted into the installed roller units 133 and 153 and connected to the opposite side to be fitted with the roller units 133 and 153 and the belt 165 by a separate fastening means.

Hereinafter, an operation process of the sliding door assembly 100 according to the preferred embodiment of the present invention will be described with reference to FIGS. 7A and 7B.

7A and 7B illustrate the first door 130, the second door 140, and the third door 150 of the third door 150 in a fixed state. When the user presses the first door 130, the first door 130 is moved by the roller unit 133 and the door car unit 135. That is, the roller 133c of the roller unit 133 moves along the rail groove of the upper chassis 200, and the wheel 135b of the door car unit 135 moves along the guide rail 121 to move the first door ( 130 moves. At this time, when the first door 130 moves, the second transfer member 169 moves, and the belt pulleys 161 and 163 rotate according to the movement of the second transfer member 169. Since the third door 150 is fixed, the second door 140 also moves in association with the distance that the first door 130 moves.

Subsequently, when the user releases the first door 130, the door closing restoring force of the automatic closing member 400 acts to pull the locking protrusion 432 connected thereto through the power transmission member 421 toward the side chassis 110. When the first door 130 is automatically moved in the closing direction, and close to the side chassis 110, the one-way rotary damper in the automatic closing member 400 is operated to generate a resistance, thereby the first door 130 The movement force of is gradually reduced and closes smoothly.

On the other hand, if the third door 150 is not fixed likewise and the first door 130 is fixed, the first door 130 is interlocked and opened in accordance with the movement of the third door 150 in the same manner as above. It will close automatically semi-automatically.

In addition, even if the first door 130 and the third door 150 is not fixed, the other door is interlocked with each other according to the movement of the door, and then semi-automatically closes after opening.

As described above, the present invention is a simplified configuration of the power transmission member (421,421 ') and the automatic closing member (400,400') has the effect of reducing the cost and manufacturing cost compared to the conventional configuration.

Here, although the sliding door assembly according to the preferred embodiment of the present invention has been described as having three doors, four or more doors may be included in some cases. In this case, the linkage part may be provided in each of the plurality of doors.

Although the embodiment of the sliding door assembly of the present invention described above has been described by taking a three-linked door as an example, it is merely exemplary, and the power transmission members 421 and 421 'and the automatic closing member 400 and 400' are also used in the two or one door. It will be appreciated that those skilled in the art to which the present invention pertains may have various modifications and equivalent other embodiments. Accordingly, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1 is a perspective view showing the configuration of a sliding door assembly according to the present invention.

Figure 2 is a schematic diagram showing a side configuration of the sliding door assembly according to the present invention.

3a and 3b are a plan view and a side view showing the configuration of a sliding door assembly according to the present invention.

4A is a perspective view of an automatic closing member of a sliding door assembly according to a preferred embodiment of the present invention.

Figure 4b is an exploded perspective view of the automatic closing member of the sliding door assembly according to a preferred embodiment of the present invention.

5a and 5b are side views showing embodiments of the power transmission member according to the present invention.

Figure 6 is a plan view showing another embodiment of the transfer member in the linkage according to the present invention.

7A and 7B are views illustrating an operation of the sliding door assembly to which the transfer member of FIG. 6 is applied.

Claims (10)

A sliding door assembly coupled to a door frame, A pair of side chassis coupled to the side door frame; A lower chassis coupled to the lower frame and having a guide rail formed thereon; An upper chassis coupled to the upper door frame and having a guide rail formed thereon;       A door defining an opening and slidingly coupled to the guide rails of the lower chassis and the upper chassis, respectively, the door having a locking protrusion formed thereon; And An elastic closure part provided in at least one of the pair of side chassis to elastically press the door in the closing direction of the door, and coupled to the locking protrusion to close the door to the side chassis of the door when the door is closed. Including an automatic closing member having a shock absorbing portion for absorbing an operation shock. Sliding door assembly. The method of claim 1, The elastic closure portion, A power transmission member coupled to the locking protrusion; A spring that provides an elastic force to the power transmission member in the closing direction of the door; Sliding door assembly comprising a spring support wheel for supporting the spring. 3. The method of claim 2, The elastic closing portion sliding door assembly further comprises an elastic force adjusting unit for adjusting the elastic force of the spring. The method of claim 3, The elastic force adjusting unit, A head portion having a non-circular shape and rotating together with the spring support wheel; Sliding door assembly including a stopper for pressing the outer peripheral surface of the head portion to stop the rotation. 3. The method of claim 2, The buffer part, One end is coupled to the locking projection and the other end is the power transmission member is provided to be fixed to the winding spring wheel; A one-way rotary damper configured to rotate freely with no load when the door is opened in engagement with the power transmission member and to be rotated with a predetermined load when the door is closed, thereby reducing the closing movement force of the door. Sliding door assembly. The method of claim 5, The power transmission member is a sliding door assembly, characterized in that the time belt is formed with a concave-convex gear on the side of the gear in the one-way rotation damper. delete delete The method according to any one of claims 1 to 6, The door includes at least a first door, a second door, and a third door that are sequentially overlapped in the opening direction to divide and open the opening; A pair of pulleys spaced apart in the opening and closing direction on the upper part of the second door, a belt coupled to the pair of pulleys, and transferring the moving force of the belt to the first door and the third door. Sliding door assembly further comprises an interlock having an engaging member. delete

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