KR101607555B1 - Damper system for sliding door - Google Patents

Abstract

The present invention relates to a damper system for a sliding door, which relieves a shock by appropriately reducing a speed of a sliding door when opening and closing the sliding door. To achieve this, according to the present invention, a damper system for a sliding door comprises: a bracket installed in one side or both sides of a rail unit; a first linker installed to be transversely moved along an accommodating unit when opening and closing the sliding door; a second linker transversely moved along the accommodating unit along with the first linker; a spring provided in the other side of the bracket; and a speed reduction means reducing a transverse movement speed of the first and the second linker.

Description

[0001] DAMPER SYSTEM FOR SLIDING DOOR [0002]

According to the present invention, when the sliding door is opened or closed, the speed of the sliding door is appropriately reduced immediately before the end of the opening (opening) or just before the closing (closing), and the shock is relieved, and the sliding door is opened A bracket installed in the frame so that the opening and closing of the sliding door can be completed automatically when the door is closed; a linker selectively received in the link of the sliding door received in the bracket; And a deceleration means for decelerating a speed of movement of the linker due to the elastic force of the spring-loaded spring.

In many storage rooms such as bookshelves, cupboards, cans, and display cases, sliding doors are often installed.

The roller supporting the sliding door slides along the rail portion provided in the frame of the storage space to open or close the storage space. When the user consciously does not pay attention, There are many cases where an impact is applied to a part of the end portion, and when the impact is excessive, the sliding door moves backward by a repulsive force and is often opened or closed.

In order to alleviate the speed (shock) applied when opening and closing the sliding door in a cabinet having such a sliding door, a high-quality storage box is equipped with a damper system.

Prior art related to the damper system of such a sliding door is disclosed in Korean Patent No. 10-0803818 entitled "Sliding door closing device ", Korean Patent Laid-open No. 10-2010-0008206 entitled " Sliding retractable safety glass door & 10-10-2010-0097372 "Sliding door closing device" and the like are disclosed.

First, a storage room having a sliding door normally includes a pair of sliding doors, an upper roller and a lower roller connected to the upper and lower portions of the sliding door, and upper and lower rails on which the upper and lower rollers are seated and slide .

Figs. 1A and 1B are diagrams showing a conventional sliding door closing device (hereinafter referred to as " sliding door closing device ") of the prior art mentioned above, 2 to 5 showing the present invention are independent of each other), a rail gear 20 having a flat gear portion 21 formed in the longitudinal direction on the sliding door frame 1 (upper rail) And a movable case 30 which is coupled to the sliding door 2 and meshed with the flat gear portion and has a spiral spring 31 on one side thereof and into which a spiral spring portion is wound or unwound by rotation is inserted .

The aforementioned patent discloses a damper system of a sliding door which can relieve an impact by limiting the opening and closing speed of the sliding door by the elastic force of the spring spring as the sliding door is opened and closed by utilizing the elasticity of the spring spring It is kind.

However, since the rail gear having the flat gear unit is required to be provided over the entire upper rail, the structure of the rail gear is unnecessary and the flat gear unit and the spur gear unit are engaged at all times. Which is inconvenient to use.

In particular, in the above-mentioned patent, the deceleration is normally performed immediately before the opening or closing of the sliding door is completed, the sliding door is always decelerated while opening and closing the sliding door, There is a problem.

In order to solve the above-mentioned problems, there is a "door sliding door closing device" of Registration No. 10-0803818. FIG. 1C is a view showing the above patent, And a reciprocating hydraulic damper 20 for reducing the moving speed by the elastic force of the cylinder 21, the piston rod 22 and the coil spring (not shown), which is an example in which a shock absorber is installed.

In this patent, when the shock absorber 20 is installed at one end of the mounting brackets 14 and 15, shocks are relieved through the buffering action of the piston rod when the sliding doors 11 and 12 are opened and closed. The damper system of the sliding door may not be fully functional because the sliding door is pushed in the opposite direction due to the repulsive force of the hydraulic damper when the sliding door is opened or closed. have.

Accordingly, the present invention has been made to solve the above-mentioned problems,

A bracket provided on one side of a frame provided with a rail portion so as to prevent a safety accident such as an impact being applied to the sliding door or a deviation from the rail portion due to an appropriate deceleration when the sliding door is opened or closed, A first linker having a guide protrusion inserted into a guide groove formed by a straight line portion and a bent portion provided on the sliding door and a latching groove for selectively engaging with a link of the sliding door, a second linker hinged to the first linker, And a deceleration means for decelerating a moving speed of the linkers due to the elastic force of the spring-loaded springs.

Particularly, according to the present invention, by providing a guide groove composed of a straight portion and a bent portion so that the deceleration is performed only immediately before the opening or closing of the sliding door is completed and the deceleration does not occur in other sections, The linker rotates the hinge axis of the second linker about the axis, so that the link of the sliding door is caught or released by the engaging groove,

Furthermore, after the speed reduction of the sliding door by the decelerating means, the sliding door using the elastic force of the spring-loaded spring so that the opening or closing can be automatically completed in a state in which the speed of the sliding door is reduced without requiring the user to continuously push the sliding door And a damper system.

The present invention is also directed to a method of reducing the speed of winding a spiral spring to increase the deceleration effect of a sliding door, comprising: a fixed shaft fixedly coupled to a bracket as a deceleration means; And a first rotary damper that decelerates the rotational speed of the sliding door.

In addition, the present invention is a reduction gear means for preventing the sliding door from being pushed in the opposite direction due to the repulsive force caused by the stable lateral movement and deceleration of the second linker upon deceleration of the sliding door, A pinion of the second linker, and a second rotary damper which decelerates the rotational speed of the rotary shaft provided with the pinion.

In order to achieve the above object, a damper system of a sliding door according to the present invention comprises:

A damper system for a sliding door which alleviates an opening or closing speed of a sliding door sliding along a rail portion,

A bracket provided on one side or both sides of the rail and having a receiving portion having an opened upper surface and a guide groove formed of a straight portion and a bent portion bent downward from one end of the straight portion;

A pair of latching protrusions which are received in the receiving portion and exposed to the upper portion of the bracket to form latching grooves to which links of the sliding door are caught and guide protrusions inserted into the guide grooves and slidingly moved, A first linker installed to transversely move along the accommodating portion when opening / closing the first linker;

A second linker hinged to the other side of the first linker and transversely moving along the accommodating part together with the first linker;

A spring disposed on the other side of the bracket and having one end connected to the second linker to exert an elastic force in the other direction of the bracket; And

And a deceleration means for decelerating a lateral movement speed of the first and second linkers due to the elastic force of the spring springs.

In the damper system of the sliding door according to the present invention,

A fixed shaft fixedly coupled to the other side of the bracket,

And a first rotary damper that rotates the fixed shaft about the outer periphery so that the spiral spring is rolled, and decelerates the rotation speed.

Further, in the damper system of the sliding door according to the present invention,

A rack gear accommodated in the bracket,

And a pinion provided on the second linker and engaged with the rack gear.

Further, in the damper system of the sliding door according to the present invention,

And a second rotary damper that decelerates the rotation speed of the rotary shaft provided with the pinion.

Since the damper system of the sliding door according to the present invention is installed at one side or both sides of the rail portion, the deceleration is performed only immediately before opening or closing of the sliding door. Especially, after deceleration by the deceleration means, Since the opening or closing is completed by automatically continuing to move in the original direction of travel, there is an advantage that the use of the sliding door is very convenient.

In the damper system of the sliding door according to the present invention, the sliding door is decelerated by decelerating the rotational speed of the first rotary damper to which the spring-loaded spring is rolled, or the engagement between the rack gear and the pinion and the second rotary damper The deceleration of the pinion rotation speed is reduced so that the deceleration effect immediately before the opening or closing of the sliding door is increased and the sliding door is prevented from being pushed in the direction opposite to the original direction due to the repelling force caused by the deceleration can do.

1A, 1B and 1C are views for explaining a damper system of a conventional sliding door.
FIG. 2A and FIG. 2B are views for explaining an installation example of a damper system of a sliding door according to the present invention. FIG.
3 and 4 are an exploded perspective view and an assembled perspective view of a damper system of a sliding door according to the present invention;
5 is a front view for explaining an operating state of a damper system of a sliding door according to the present invention;

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

 In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the damper system of the sliding door according to the present invention, when an unambiguous approximate direction reference is specified with reference to Figs. 2A and 3 for the sake of convenience, the direction in which the gravity acts is defined as a front direction, The front and rear, and the top and bottom, left and right are determined as they are in the direction of the view, and are referred to as front and rear relative to the moving direction of the sliding door, and unless otherwise specified in the description and claims of the invention relating to other drawings, To specify the direction.

Hereinafter, a damper system of a sliding door according to the present invention will be described with reference to the accompanying drawings.

2A and 2B, the damper system 100 of the sliding door according to the present invention is installed in the storage space 10 or the like where the sliding doors 11 and 12 are employed, (Not shown) in which the lower portion roller (not shown) of the sliding door is slidably opened and closed, and a rail portion 17 in which the slide door 13 is slidably opened and / So that shock reduction and complete opening and closing can be achieved.

The damper system of the sliding door according to the present invention is installed at one side (left end or right end) or both sides of the rail portion 17 of the upper frame 10A depending on the type, purpose, etc. of the object to which the sliding door is applied, 2a shows a cabinet 10 in which an outer sliding door 11 and an inner sliding door 12 are employed and in which both the inner and outer sliding doors 11 and 12 are decelerated to open and close, It can be seen that two damper systems are installed at both side ends of the part 17 and two damper systems are provided at the center. Although not shown in the drawings, the damper system of the present invention is also applied to the rail of the lower frame Of course.

Briefly describing the deceleration of the sliding door through this,

When the user pushes and opens the outer sliding door 11 to the left in the state in which the outer sliding door 11 is closed, the link is connected to the right upper roller 13a of the outer sliding door 11 in the rightmost damper system 100a, (See Fig. 2B and Fig. 5), the link is decelerated while entering the center right damper system 100b just before the opening of the outer sliding door 11 is completed,

When the user further pushes the outer sliding door 11 to the right and then closes the link 15, immediately after the link 15 is disengaged from the central right damper system 100b, immediately before the closing of the outer sliding door 11 is completed, Deceleration occurs when entering the rightmost damper system,

In the case of the inner sliding door 12, the above operation is reversed.

Hereinafter, a damper system 1001, particularly a damper system 100a provided on the upper frame 10A, which operates when the outer sliding door 11 is closed will be described for the sake of convenience of explanation, but a lower frame (not shown) The damper system of the present invention can also be applied to a vehicle.

3 to 5, the damper system 100 of the sliding door includes a bracket 110 installed on a frame 10A having a rail 17, A first linker 120 and a second linker 130 which transversely move together with the sliding doors 130 and 130 and the first and second linkers 120 and 130 move in the closing direction of the sliding door, And a deceleration means 150 for decelerating the lateral movement speed of the linkers due to the elastic force of the spring 140 and the spring 140.

First, the bracket 110 is provided with a receiving portion 111 having a predetermined length along the lateral movement direction of the sliding door, and the upper portion of the receiving portion 111 is opened.

A guide groove 112 is formed in one or both of the front and rear side walls of the bracket 110 by drilling along the lateral movement direction of the sliding door. The guide groove 112 includes a straight portion 112a, And a bent portion 112b bent downward from one end of the straight portion 112a.

At this time, in order to ensure stable guidance and movement of the guide projections of the first linker 120, which will be described later (collectively referred to as the first guide projections 124 for the sake of convenience, hereinafter), the straight portion 112a and the bent portions It is preferable to further include an inclined portion 112c inclined at a predetermined angle.

A spring loaded mounting portion 113 for mounting a spring 140 to be described later is formed on the other side of the bracket 110. Vertical directions are formed in the side walls between the spring loaded mounting portion 113 and the accommodation portion 111, The slit groove 114 is formed so that one end of the spring 140 can be wound or unwound on the receiving portion 111 through the slit groove 114. [

A shaft hole 113a for pivoting the fixed shaft 151 of the spring 140 is pierced on the upper and lower surfaces of the spring loaded mounting portion 113. The shaft hole 113a is used as a deceleration means 150, And is perforated in a circular or polygonal shape depending on the shape of the shaft 151.

Next, the first linker 120 is a member received in the receiving portion 111 and is fastened to the link 15 connected to the sliding door (here, the fastening means not a complete physical connection but a simple engagement and disengagement. To move transversely along the accommodating portion 111. [0031] As shown in Fig.

To this end, the first linker 120 is provided with first and second stopping protrusions 121 and 122 protruded upward, and a locking groove 123 is formed therebetween, and the left front (and / or rear) The first guide protrusion 124 protruding from the guide groove 112 is inserted into the guide groove 112.

The second linker 130 is hinged to the right rear surface of the first linker 120 so that the first and second linkers 120 and 130 are transversely moved together along the receiving portion 111.

Therefore, when the first guide protrusion 124 transversely moves on the linear portion 112a of the guide groove 112, the first and second stopping protrusions 121 and 122 are positioned on the upper side of the receiving portion 111 So that the first and second linkers transversely move together with the left and right movement of the link 15 caught in the engagement groove 123,

When the first guide protrusion 124 is moved longitudinally on the bent portion 112b of the guide groove 112, the first linker 120 is rotated about the hinge shaft 131 of the second linker 130 So that the first latching jaw 121 is pulled out on the receiving portion 111 and downward.

Therefore, when the outer sliding door 11 (see FIG. 2A) is pushed to the left side in the closed state, the link 15 is caught by the first latching jaw 121 and the first and second linkers 120 and 130 are accompanied When the first guide protrusion 124 moves along the linear portion 112a and then enters the bent portion 112b and the first linker 120 rotates downward, the first hooking jaw The link 15 is pulled out of the latching groove 123 and the sliding door is pushed to the left side continuously as the link 15 is pulled into the receiving portion 111 and the front of the latching groove 123 is opened, The first and second linkers 120 and 130 are urged to the right by the elastic force of the later-described spring 140. At this time, the first guide protrusion 124 is bent 112b, so that the state in which the first locking protrusion 121 is retracted is maintained.

When the outer sliding door 11 is further pushed to the right side in the open state, the link 15 is inserted into the opened locking groove 123 to be caught by the second locking protrusion 122 and the first guide protrusion 124 When the first linker 120 is rotated upward while being separated from the bent portion 112b, the link 15 is hooked on the second hook 122 in a state of being inserted into the hooking groove 123, The linkers 120 and 130 move together to the right.

The first deceleration of the sliding door is reduced by the force that the link 15 is caught by the second locking protrusion 122 and the first guide protrusion 124 is released from the bent portion 112b to the straight portion 112a When the first guide protrusion 124 enters the straight portion 112a (or the slope portion 112c), the first guide protrusion 124 is restricted by the elastic force of the spring 140, The second linkers 120 and 130 are pushed to the right side at a constant speed to close the sliding door.

As described above, an inclined portion 112c is provided between the straight portion 112a and the bent portion 112b of the guide groove 112 to assist the rotation of the first guide protrusion 124.

Therefore, the guide groove 112 composed of the first guide projection 124, the straight portion 112a and the bent portion 112b assists the function of the deceleration means 150 described later.

In addition to the first guide protrusion 124, the first linker 120 further includes a second guide protrusion 125 which transversely moves only along the linear portion 112a, and protrudes from the second guide protrusion 125 The protruding portion 125a is provided in the direction of the bent portion 112b so that the protruded portion is supported by the inclined portion 112c while assisting the return operation of the first linker 120 when the sliding door is closed.

The second linker 130 is accommodated in the accommodating portion 111 and moves in parallel with the first linker 120. The hinge shaft 131 protrudes from the left front surface of the second linker 130, And a third guide protrusion 133 protrudes from the right side of the hinge hole 126 and is inserted into the guide groove 112.

The third guide protrusion 133 is positioned on the right side of the second guide protrusion 125 so that it naturally transversely moves only along the straight portion 112a of the guide groove 112, .

The second linker 130 has a coupling protrusion 132 protruding from one side of the right front side and the rear side so as to be inserted into the coupling hole 140a provided at one end of the spring 140, When the first guide protrusion 124 enters the linear portion 112a (or the inclined portion 112c), the elastic force of the second linker 130 restricts or reduces the speed of the second linker 130, The door 130 is pushed to the right to close the sliding door.

The spring 140 is coupled to the spring attachment portion 113 of the bracket 110. The spring 140 is wound around the shaft 151 and exerts an elastic force in a direction .

One end of the spring 140 having the coupling hole 140a passes through the slit groove 114 and is coupled to the second linker 130 so that the spring 140 is released when the sliding door is opened When the first guide protrusion 124 reaches the bent portion 112b and the first guide protrusion 124 is released from the bent portion 112b while closing the sliding door, The closing speed of the sliding door is limited by the elastic force of the spring 140, and the closing of the sliding door is completed by the elastic force in the state where the deceleration is performed.

The first linker 120 and the second linker 130 are connected to each other by the spring force of the spring 140. The first linker 120 and the second linker 130 are connected to each other by the elastic force of the spring 140, And a deceleration means 150 for decelerating the lateral movement speed of the vehicle.

The decelerating means 150 may be provided in various ways such as a breaking means (not shown) using a frictional force between the bracket 110 and the first and second linkers 120 and 130,

The first and second rotary dampers 152 and 155 and the rack gear 153 and the pinion gear 153 are provided so as to ensure a stable lateral movement and a deceleration effect of the first and second linkers 120 and 130, (154) were used.

First, as a first embodiment of the deceleration means 150, the present invention includes a fixed shaft 151 fixedly coupled to the other side of the bracket 110,

And a first rotary damper 152 that rotates the fixed shaft 151 to decelerate the rotation speed of the fixed spring 151 so that the coil spring 140 is rolled (that is, wound or unwound) to the outer periphery.

That is, the first fixed shaft 151 and the first rotary damper 152 are not integrally formed, but the first fixed shaft 151 is fixed to the first rotary damper 151 152 are rotated in a decelerated state, thereby restricting the elastic force generated when the spring 140 is wound and causing the sliding door to decelerate.

The first fixing shaft 151 is fixedly connected to the first fixing shaft 151 by bolts or the like. The upper and lower ends of the first fixing shaft 151 are polygonal, and the shaft hole 113a is polygonal And a method in which the first fixed shaft 151 is fixed.

The first rotary damper 152 is coupled to rotate about the fixed shaft 151 and the other end (not shown) of the spring 140 is fixed to the outer periphery of the first rotary damper 152, The first rotary damper 152 rotates when the spring 140 is wound or unwound.

At this time, the first rotary damper 152 is provided therein with a breaking means (not shown) using a frictional force with the fixed shaft 151 to restrict the rotational speed of the first rotary damper 152. In this case, It is preferable that the rotational speed of the first rotary damper 152 is not decelerated and the rotational speed of the first rotary damper 152 is decelerated when the spring 140 is wound.

The rotary deceleration system and the structure of the first rotary damper 152 can be variously used in various known rotary dampers. Therefore, a description thereof will be omitted, and the second rotary damper 155 will be described later.

Therefore, the first rotary damper 152 functions as the deceleration means 150 together with the first guide protrusion 124, the bent portion 112b, and the like, so that the speed is appropriately decelerated immediately before the closing of the sliding door is completed After the deceleration is completed, the closing of the sliding door can also be automatically completed while winding of the spring 140 is completed, even if the user does not exert any extra force on the sliding door.

Next, as a second embodiment of the deceleration means 150, the present invention includes a rack gear 153 accommodated in a receiving portion 111 of the bracket 110,

And a pinion 154 provided in the second linker 130 and engaged with the rack gear 153.

The rack gear 153 is provided with teeth 153a along the longitudinal direction on the upper surface thereof and a corresponding tooth portion 154a corresponding to the teeth 153a on the outer circumference of the pinion 154, The pinion 154 rotates in accordance with the lateral movement of the second linker 130 so that the first and second linkers 120 and 130 are decelerated.

The rack gear 153 has a length corresponding to the rectilinear section 112a (or inclined section 112c) so that the pinion 154 is connected to the first and second linkers 120 and 130, The rack gear 153 is maintained in a state of being engaged with the rack gear 153 at all times.

When the first guide protrusion 124 is engaged with the bent portion 112b and the first and second linkers 120 and 130 are pushed to the right when the link 15 of the sliding door is caught by the latch groove 123 The primary deceleration is performed while the first guide protrusion 124 is released from the bent portion 112b and then the secondary deceleration is performed in accordance with the restriction of the elastic force of the spring 140. At the same time, And the third deceleration due to the engagement of the corresponding tooth portion 154a. Therefore, regardless of the initial pushing force of the sliding door, the link 15 decelerates momentarily when the damper system of the present invention enters, It is possible to mitigate the impact of the impact.

Next, as a second embodiment of the deceleration means 150, the present invention further includes a second rotary damper 155 that decelerates the rotation speed of the rotation shaft 155a provided with the pinion 154. [

The second rotary damper 155 is a member that is bolted to the front engaging portion 134 of the second linker 130 and is a member for decelerating the rotation speed of other components like the first rotary damper 152 In the same way,

However, the first rotary damper 152 decelerates the rotational speed of the first rotary damper 152 itself while the first rotary damper 152 rotates in a state where the fixed shaft 151 is fixed,

The second rotary damper 155 is different in decelerating the rotation speed of the rotary shaft 155a provided with the pinion 154 in a state where the second rotary damper 155 itself is fixed to the second linker 130 .

Accordingly, the deceleration effect of the sliding door is increased through deceleration by the engagement of the rack gear 153 and the pinion 154 and the reduction of the rotation speed of the pinion 154 itself. In particular, the link 15 is connected to the damper system The moving direction of the rack gear 153 is constrained by the engagement of the rack gear 153 and the pinion 154 so that even if the sliding door is pushed hardly and closed, the moving direction of the sliding door is reversed It can be prevented from being pushed in the direction.

In addition to the elastic force of the spring 140 and the deceleration of the first and second rotary dampers 152 and 155, the first and second rotary dampers 152 and 155 are operated in a complex manner, .

In the present invention, when adopting the first embodiment, the rack gear 153, the pinion 154, and the second rotary damper 155 of the second embodiment can be omitted, and conversely, the second embodiment can be adopted In the first embodiment, it is also possible to use only the normal spring 140 in a state in which the first rotary damper 152 is omitted.

In addition, the present invention adopts both the first and second embodiments to realize a complex decelerating function and an impact damping function, so that it is possible to provide a cabinet provided with a sliding door, that is, And it is more preferable that the application of the first and second embodiments is selectively applied according to the installation purpose and specification of the sliding door.

As described above, the damper system of the sliding door according to the present invention has been described as an example in which the damper system is applied to a cabinet having a general sliding door. However, the present invention is not limited thereto and the present invention can be applied to various kinds of sliding doors And modifications, alterations, permutations, and the like according to such an installation example can be sufficiently predicted and reproduced by those skilled in the art, and the interpretation of rights of the present invention should not be limited.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the following claims. Substitutions should be construed as falling within the scope of protection of the present invention.

10: cabinet 10A: frame
11, 12: sliding door 13: upper roller
15: Link 17: Le Mans
100: damper system of sliding door 110: bracket
111: receiving portion 112: guide groove
112a: straight line portion 112b:
113: a spring loaded portion 114: a slit groove
120: first linker 121, 122:
123: engaging groove 124: first guide projection
125: second guide projection 126: hinge ball
130: second linker 132: engaging projection
133: third guide projection 134: engaging portion
140: spring 150: deceleration means
151: fixed shaft 152: first rotary damper
153: Rack gear 154: Pinion
155: second rotary damper 155a:

Claims (4)

A damper system for a sliding door which alleviates an opening or closing speed of a sliding door sliding along a rail portion (17)
And a bending portion 112b which is bent downward from one end of the straight portion 112a and which is bent downwardly at one side end of the straight portion 112a, A bracket 110 having a guide groove 112 formed by an inclined portion 112c inclined at a predetermined angle between the straight portion 112a and the bent portion 112b;
A pair of latching protrusions 121 and 122 which are received in the receiving portion 111 and are exposed to the upper portion of the bracket 110 to form a latching groove 123 for latching the link 15 of the sliding door, The sliding door includes a first guide protrusion 124 and a second guide protrusion 125 which are inserted into the guide groove 112 to slide and move along the receiving portion 111 when the sliding door is opened and closed, A first linker 120 installed to be rotated with respect to the second linker 130 by the bent portion 112b and the inclined portion 112c;
And a third guide protrusion 133 hinged to the other end of the first linker 120 and inserted in the guide groove 112 and sliding only along the linear portion 112a, A second linker 130 which transversely moves along the receiving portion 111 together with the second linker 120;
A spring 140 disposed on the other side of the bracket 110 and having one end connected to the second linker 130 to exert an elastic force in the other direction of the bracket 110; And
And a deceleration means 150 for decelerating a lateral movement speed of the first and second linkers 120 and 130 by an elastic force of the spring 140,
The deceleration means (150)
The fixing shaft 151 fixedly coupled to the other side of the bracket 110,
The other end of the winding spring 140 is fixed so that the winding spring 140 is rolled on the outer circumference and the winding spring 140 is rotated about the fixing axis 151 when the winding spring 140 is wound or unwound, A first rotary damper 152 whose rotation speed is reduced when the first rotary damper 140 is wound,
A rack gear 153 housed in the receiving portion 111 under the first and second linkers 120 and 130,
A pinion 154 provided on the second linker 130 and engaging with the rack gear 153 and rotating in accordance with lateral movement of the second linker 130,
A second rotary damper (not shown) fixedly coupled to the second linker 130 and configured to decelerate the rotation speed of the rotation shaft 155a of the pinion 154 when the pinion 154 rotates to the other side of the rack gear 153 155,
The first guide protrusion 124 is formed on one side of the first linker 120 and moves along both the straight portion 112a and the bent portion 112b,
The second guide protrusion 125 is formed on the other side of the second linker 120 and moves only along the straight line portion 112a,
The second guide protrusion 125 has a protrusion 125a protruding in the direction of the bent portion 112b so that the first guide protrusion 124 moves longitudinally on the bent portion 112b, When the linker 120 rotates, the projecting portion 125a is supported while being entered into the inclined portion 112c, thereby assisting the first linker 120 to rotate and return to the linear portion 112a The damper system of the sliding door.
The method according to claim 1,
The bracket 110 includes a winding attachment portion 113 having a shaft hole 113a in which the first rotary damper 162 wound with the winding spring 140 is received and the fixing shaft 151 is fixedly coupled And the damper system of the sliding door.
3. The method of claim 2,
A slit groove 114 provided in a vertical direction is formed in a side wall between the spring loaded mounting portion 113 and the receiving portion 111 so that one end of the spring 150 is inserted into the receiving groove 111 through the slit groove 114, Is rolled or loosened on the sliding door (111).
4. The method according to any one of claims 1 to 3,
Wherein the first rotary damper (152) and the second rotary damper (155) are provided with braking means using frictional force between the shaft and the shaft.

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