WO2006025149A1

WO2006025149A1 - Door closing device for sliding door

Info

Publication number: WO2006025149A1
Application number: PCT/JP2005/012078
Authority: WO
Inventors: Masahiro Nagata
Original assignee: Shimodaira Hardware Co., Ltd.
Priority date: 2004-08-30
Filing date: 2005-06-30
Publication date: 2006-03-09
Also published as: KR100803818B1; JP2006063767A; CN101018923A; KR20070042557A

Abstract

A door closing device capable of performing excellent door closing operation by forcibly pulling, at a door closing side end section, a sliding door of storage furniture etc. and appropriately reducing the speed of the sliding door immediately before the end of the closure of the door, and also capable of stabilizing the operation of the sliding door at the time of starting the closure and opening of the door. In a casing A fixed to the end part of a guide rail, a hook member (2) is pivotally fixed to a member (1) sliding in an appropriate region. The sliding member (1) is urged to the door closure side through a coil spring (3), a guide travel body B, traveling along the guide rail, moves in the sliding region of the sliding member (1) in a door closing direction from a state where the traveling body (B) engages with the hook member (2). A reciprocating liquid pressure damper (4) consisting of a cylinder housing section (4a), a piston rod (4b), and liquid reduces the moving speed caused by elastic force of the coil spring (3).

Description

Specification

Sliding door closing device

Technical field

[0001] The present invention relates to sliding doors in various storage furniture such as cupboards, book shelves, display shelves, etc., particularly in the vicinity of the door closing side end of the sliding door, thereby forcing the sliding door to the door closing side end. The sliding door can be closed at the same time as the sliding door speed is properly reduced and the sliding door speed can be properly reduced to stabilize the sliding door operation at the start of opening and closing. About.

Background art

Conventionally, there is a sliding door device as seen in Patent Document 1 below. Sliding doors with glass windows are often installed in various storage furniture such as cupboards, bookshelves, and display shelves. If this sliding door is a small frontage storage furniture, it may have a very simple structure in which guide rails are formed above and below the frontage and the upper and lower ends of the glass plate are inserted into the guide rails. However, in high-quality furniture and high-end cabinets, the sliding door opening and closing operations are required to be heavy and elegant. Especially for large furniture, the sliding doors become large, and the weight of the sliding doors themselves becomes very large.

Patent Document 1: JP 2002-138739

Disclosure of the invention

Problems to be solved by the invention

[0003] Since such a large sliding door is heavy, if the sliding door begins to move and starts to move, there is a risk that the door will have a large impact on the door closing end due to its momentum. This condition reduces the quality of furniture and is not suitable for high-end furniture or cabinets. In addition, when trying to prevent the door-closing collision state at the door closing side end of the sliding door as described above, the momentum of the sliding door closing action will be reduced to a certain extent. The closed state tends to be incomplete.

[0004] This also causes the quality of furniture to deteriorate. In addition, if the door has a buffering function in the door closing operation, the size of the device is often increased. The device is exposed to the outside of the sliding door device, requiring extra space and detracting from its appearance. Also, when opening the sliding door, depending on the position of the handle, a moment is applied to the sliding door in the moving direction, and the sliding door may be inclined with respect to the guide rail, and the opening / closing operation may be difficult to stabilize. The purpose of the present invention is to bring the sliding door to the door closing side edge by bringing it close to the door closing side edge, particularly in luxury furniture and cabinets, and the speed of the sliding door just before the door closing ends. The door is properly decelerated and the door closes properly, and the door closing device is made compact, and it is mounted directly on the guide rail of the sliding door, so that there is little space for installation in the sliding door device. The purpose is to stabilize.

Means for solving the problem

[0005] In view of this, the inventor has intensively studied to solve the above problems, and as a result, the invention of claim 1 is slid in an appropriate region within the casing attached to the end portion of the guide rail. A hook member is rotatably attached to the sliding member, and the sliding member is urged toward the door closing side via the coil spring, and a guide traveling body that travels along the guide rail is engaged with the hook member. The sliding area of the sliding member is moved in the door closing direction from the stopped state, and the moving speed due to the elastic force of the coil spring is reduced. The above-mentioned problems are solved by using a sliding door closing device provided with a reciprocating hydraulic pressure damper.

[0006] Next, the invention of claim 2 is applied to the sliding operation of the sliding member, the rotating base portion pivotally connected to the sliding member, the locked piece, the contacted piece, and the rotating base portion. A hook member comprising an engaging portion projecting upward, a coil spring for biasing the sliding member in the door closing direction, a cylinder housing portion, and a reciprocating motion within the cylinder housing portion. A reciprocating hydraulic damper comprising: a piston rod that is sealed, and a cylinder housing that is hermetically filled with a liquid that provides resistance to the piston rod; and the sliding member, hook member, coil spring, and reciprocating A main guide portion where a hydraulic die damper is mounted and the sliding member is guided along the horizontal direction, and an engaged surface portion is formed near the door opening inside the main plan and is mounted on the guide rail Casing and guide traveling body that travels along the guide rail Engagement provided, abutting the the front end of the arm portion extending along the moving direction engaging seals and the contact piece in the locking piece The hook member is configured such that the sliding member swings only at the position of the door opening side end portion, and the engaging portion is engageable with the engaged surface portion. By making the piston rod of the reciprocating hydraulic pressure damper the same direction as the moving direction of the sliding member and reducing the moving speed by the coil spring of the sliding member, It solves the above problems.

[0007] Further, the invention of claim 3 may be arranged in parallel with the coil spring, or the invention of claim 4 may be arranged on the inner side of the coil spring. The above-mentioned problem is solved by disposing the piston rod of the reciprocating hydraulic pressure damper at the top.

The invention's effect

[0008] According to the invention of claim 1, when the sliding door is opened and closed, it can be opened and closed smoothly without rattling or vibration in the initial operation, and particularly when used as a sliding door device for high-quality furniture, cabinets, etc. The operation is very good and it is very quiet when the door is closed. In addition, the sliding door is forcibly drawn to the end of the door closing side, the speed of the sliding door at the end of the door closing is appropriately reduced to achieve a good door closing operation, and the door closing device is downsized, and the sliding door guide rail It is possible to reduce the space for assembling directly into the sliding door device.

[0009] The moving speed of the coil spring is reduced by using a reciprocating hydraulic pressure damper composed of a cylinder housing, a piston rod, and a liquid cover, and the sliding door moves. The speed is reduced well. Furthermore, by using a reciprocating hydraulic pressure damper to reduce the moving speed of the sliding door, a very simple configuration can be achieved and its operation can be ensured.

[0010] According to the invention of claim 2, the piston rod is in the same direction as the moving direction of the sliding member, and the resistance force against the movement of the sliding member in the door closing direction can be applied almost without waste. It is something that can be done. According to the invention of claim 3, by arranging the coil spring and the reciprocating hydraulic damper in parallel, the coil spring or the reciprocating hydraulic damper can be easily replaced or replaced. Furthermore, the structure can be greatly simplified by arranging the coil spring and the reciprocating hydraulic damper in parallel. According to the invention of claim 4, The storage space for the reciprocating hydraulic damper and coil spring in one single can be reduced, and as a result, the door closing device can be made more compact. Brief Description of Drawings

圆 1 (A)] is a front view of a principal part in a partial cross section in a state where the door closing device of the present invention is mounted on a sliding door.

圆 1 (B)] is an enlarged view of the door closing device.

圆 1 (C)] is an enlarged view of a state in which the hook member of the door closing device is pulled into the casing.圆 2 (A)] is an exploded perspective view of the sliding member, the hook member, and the cylinder.

FIG. 2 (B) is an enlarged view showing a part of a section of a hook member.

圆 3 (A)] is a side view of the main part of the door-closing device, in which the first casing portion side force is also viewed.

圆 3 (B)] is a side view of the main part of the door-closing device, in which the second casing portion side force is also viewed.

FIG. 4 (A) is a side view of a sliding member, a hook member, and a reciprocating hydraulic pressure damper.

FIG. 4 (B) is a perspective view of a sliding member, a hook member, and a reciprocating hydraulic pressure damper.

圆 5 (A)] is an enlarged side view of the sliding member and the hook member in an inclined state.

[5B] is an enlarged side view of the sliding member and the hook member.

FIG. 6 is a side view of the first casing part.

FIG. 7 (A) is an operational view showing a state where the hook member is located at the main guide portion.

FIG. 7 (B) is an operational view showing a state where the hook member is positioned on the engaged surface portion.

FIG. 8 (A) is an enlarged action diagram showing a state where the hook member is located at the main guide portion.

FIG. 8 (B) is an enlarged action view of the hook member positioned on the engaged surface portion.

FIG. 9 (A) is a perspective view of a guide traveling body.

圆 9 (B)] is a vertical side view of a sliding door device equipped with the door closing device of the present invention.

FIG. 10 (A) is an operational view showing a state in which the engaging portion of the guide traveling body is close to the hook member of the casing.

FIG. 10 (B) is an operational view showing a state in which the engaging portion of the guide traveling body is in contact with the contact piece of the hook member of the casing.

FIG. 10 (C) is an operational view showing a state where the locking portion of the guide traveling body is locked to the hook member of the casing. FIG. 11 (A) is an operational view in which the locking portion of the guide traveling body is locked to the hook member of the casing to release the temporarily stopped state of the hook member.

[FIG. 11 (B)] It is an action diagram in a state where the door closing is completed.

FIG. 12 (A) is an operational view of the door opening start when the locking portion of the guide traveling body is locked to the hook member in the casing.

FIG. 12 (B) is an operation diagram in a state where the sliding door is moved in the door opening direction and the hook member is moved to the door opening end.

[FIG. 12 (C)] FIG. 12 (C) is an operational diagram in which the hook portion of the casing is detached from the hook member force of the casing and the hook member is temporarily stopped.

FIG. 13 (A) is an enlarged view showing a second type mounting configuration of the reciprocating hydraulic pressure damper.

FIG. 13 (B) is an enlarged view showing a state where the hook member of FIG. 13 (A) is bowed into the casing.

FIG. 14 is an action diagram showing the operation of the sliding door.

Explanation of symbols

[0012] A ... Casing, Β ... Guide traveling body, 1 ... Sliding member, 2 ... Hook member, 2c ... Engagement part, 3 ... Coil spring, 4 ... Reciprocating hydraulic damper, 4a ... Cylinder housing Part,

4b ... piston rod, 7 ... engaged surface.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. A door closing device component (door closing tool) mainly composed of a sliding member 1, a hook member 2, a coil spring 3, a reciprocating hydraulic damper 4, a casing A, etc. The guide traveling body B mounted on the sliding door 18 side, the upper and lower guide rails, and the cabinet mounted with these are configured. First, in the door closing device component (door closing tool), the sliding member 1 has a substantially square shaft-like sliding body la as shown in FIG. 2, FIG. 4, FIG. . The sliding main body la is formed in a substantially rectangular shape in cross section, and its upper surface side is formed as a flat surface.

[0014] As shown in Fig. 2 (A) and Fig. 4 (A), a pivot connection portion lc is formed on one end side in the longitudinal direction of the sliding main body la. The pivot connecting portion lc is formed with a connecting shaft piece lc.

1

As shown in FIG. 4 (A), a hook member 2 to be described later is pivotally connected via a connecting piece lc.

1

It is. Further, in the longitudinal end surface of the sliding main body la, in the vicinity of the pivot connecting portion lc Are formed with guided protrusions Id. As shown in FIG. 2 and FIG. 4 (B), the guided protrusion piece Id is a portion protruding in the horizontal direction so as to be substantially orthogonal to the longitudinal direction of the sliding main body la, and its upper surface. Is formed in a flat surface.

[0015] Then, it becomes a portion that slides along a main guide portion 6 of the casing A described later. Further, a sliding member operation piece If is formed so as to protrude downward at the guided projection piece Id portion force. Further, the sliding member operation piece If is provided with a coil spring connecting portion le in which an end portion of a coil spring 3 to be described later is hooked by a bow I. Further, the sliding main body la is formed with a sliding restricting projection lg that engages with a sliding restricting portion 11 formed on the casing A side to be described later (see FIG. 4 (A)). The sliding restricting projection lg is formed at the end close to the door closing side in the longitudinal direction of the sliding member 1 and is formed to project in a direction perpendicular to the longitudinal direction of the sliding member 1.

[0016] Further, a protruding portion lh protruding upward is formed at the door opening side end portion of the sliding member 1, and the tip of the protruding portion lh comes into contact with a hook member 2 to be described later. It may also serve to regulate the rocking range. Here, the door closing side and the door opening side will be described. The door closing side is the direction of movement when the sliding door 18 is closed, and the left side force in FIG. 1 is also the right direction. The door open side is the direction from the right to the left in Fig. 1 (A). Further, in casing A, as shown in FIG. 1 (B), the right side is the door closing side, and the left side is the door opening side.

[0017] Next, the hook member 2 includes a rotation base 2a, a hook 2b, and an engagement portion 2c that protrudes upward by the swinging motion of the rotation base 2a. The hook portion 2b is a locked piece 2b.

1 and the abutted piece 2b.The locked piece 2b and the abutted piece 2b are in a substantially parallel state.

2 1 2 The locked piece 2b has a height higher than that of the abutted piece 2b as shown in FIGS.

1 2

The vertical dimension is low.

[0018] The shape between the locked piece 2b and the abutted piece 2b is a substantially U-shaped recess 2b.

1 2 3 and the guide member 15 of the guide traveling body B described later can be inserted into the recess 2b.

Three

It has become so. The pivot base 2a is formed with a pivot hole 2a into which the connecting shaft piece lc formed at the pivot connecting portion lc is inserted into the sliding member 1, and the connecting shaft piece lc is pivoted.

1 1 1

2a, the sliding member 1 and the hook member 2 are connected, and the hook member 2 is slid. The movable member 1 can be rotated up and down with respect to the moving member 1 (see FIGS. 4, 5, 7A, 8). The engaging portion 2c is a portion formed in an arc shape around the pivot hole 2a of the rotating base portion 2a.

1

It is rank. Specifically, the engaging portion 2c is a portion formed as the outer peripheral side surface of the rotation base portion 2a. The engaging portion 2c is a portion that is close to or in contact with an engaged surface portion 7 formed in a casing A, which will be described later, in an arcuate manner. As described above, when the connecting shaft piece lc of the pivot connecting portion lc between the hook member 2 and the sliding member 1 is swung by the pivot supporting hole 2a.

1 1

Is the center of the arc of the engaging portion 2c.

In addition, a guide protrusion 2d may be formed on the hook portion 2b of the hook member 2. The guide protrusion 2d is inserted into an auxiliary guide portion 12 formed on the casing A, which will be described later, to move the hook member 2 well along the longitudinal direction of the casing A, and to rotate the hook member 2. Is intended to be performed well and accurately.

Furthermore, as shown in FIG. 4B, FIG. 5, etc., a hook operation piece 2e is formed on the rotating base 2a by applying a downward force. The hook operating piece 2e serves to forcibly move the casing A to the outside of the casing A via the hook operating piece 2e when the hook operating piece 2e is housed in the casing A due to a malfunction. Then, the hook operation piece 2e protrudes to the outside of the casing A together with the sliding member operation piece If so that the sliding member 1 and the hook member 2 can be forcibly moved from the outside of the casing A ( (See Figure 3). Further, a locking projection piece 2f is formed so as to be perpendicular to the top portion of the rotation base portion 2a and the width direction of the hook portion 2b. When the hook member 2 moves along with the sliding member 1 along a main guide portion 6 (to be described later), the locking projection piece 2f comes into contact with the main guide portion 6 and moves. To do.

[0021] Next, the casing A is divided into two parts, the first casing part A and the second casing A.

1 Consists of casing part A. Figure 6 is a view from the inside of the first casing part A.

twenty one

It is. A main guide portion 6 is formed inside the first main body 5 of the first casing portion A.

1

ing. The main guide portion 6 is formed in a straight line along the longitudinal direction of the first casing portion A.

1

The lower surface side is formed in a flat shape. Specifically, the main guide portion 6 has a shape bulging inward from the surface of the first main body 5.

[0022] Further, the main guide portion 6 is provided in a substantially half region on the door opening side in the longitudinal direction of the first main body 5. It is formed. As described above, the main guide portion 6 is formed with a flat bottom surface, the upper end surface of the guided projection piece Id of the sliding member 1 abuts, and the locking projection piece 2f of the hook member 2 Also contacts the main guide 6. An engaged surface portion 7 is formed at an end portion of the main guide portion 6 in the opening side direction. The engaged surface portion 7 is formed in an arc shape as shown in FIGS. Specifically, the hook member 2 is a convex arcuate surface, that is, an arcuate convex surface portion, and the engaged surface portion 7 is a concave arcuate surface, that is, an arcuate concave surface portion. The engaging portions 2c have a substantially equal radius of curvature between the engaging portion 2c and the engaged surface portion 7. The engaging portion 2c can smoothly rotate along the engaged surface portion 7.

[0023] Then, the hook member 2 moves along the main guide portion 6 so that when it reaches the position of the engaged surface portion 7, the engaging portion 2c slides along the engaged surface portion 7. The hook member 2 can move and swing. Then, when the engaging portion 2c of the hook member 2 is engaged with the engaged surface portion 7, the hook member 2 is piled up by the elastic force of the coil spring 3 at the engaged surface portion 7 and is temporarily stopped. . This temporary stop state means a state in which it cannot be operated by a slight vibration or the like, but can be maintained so that it can move when the locking portion 15b of the guide traveling body B comes into contact.

[0024] At this time, the hook member 2 is such that the upper end of the locked piece 2b is lower than the upper end of the abutted piece 2b.

1 2

It is in a tilted state. In this state, the guide member 15 of the guide traveling body B is engaged with the locked piece 2b.

1 It is in a state where it can enter and exit between the contact pieces 2b. Furthermore, it reciprocates in the first casing part A.

twenty one

Mold hydraulic pressure damper 4 is installed. The guided projection piece Id of the sliding member 1 is brought into contact with the lower side of the main guide portion 6. A force that requires that the elastic force F of the coil spring 3 is larger than the resistance force T generated by the reciprocating hydraulic pressure damper 4 is set appropriately for the difference between the elastic force F and the resistance force T.

Next, the second casing part A will be described. Figure 1 (B) shows the inside of the second casing part A.

In the view of 2 2, the sliding member 1, the hook member 2, the coil spring 3 and the reciprocating hydraulic pressure damper 4 are mounted. FIG. 3 (B) is a view of the second casing portion A as seen from the outside.

2

Note that FIG. 3 (A) is a diagram in which the second casing part A and the first casing part A are combined.

twenty one

FIG. 6 is a view as seen from the first casing part A side.

1

The second main body 10 is formed with a sliding restricting portion 11 and an auxiliary guide portion 12. That slide The movement restricting portion 11 is linear, and the sliding restricting projection lg of the sliding member 1 is inserted to restrict the movement range of the sliding member 1 within the casing A. That is, the sliding member 1 can properly move in the casing A, and the sliding member 1 and the hook member 2 serve to prevent the sliding member 1 and the hook member 2 from dropping out of the casing A. In addition, the proper movement of the sliding member 1 means movement within a range in which the hook member 2 pulled out in the door opening direction by the locking portion 15b of the guide traveling body B can be temporarily stopped at the seven engaged surface portions. Let's go. The sliding restricting portion 11 is formed in a slit shape, and has a groove width that allows the sliding restricting projection lg of the sliding member 1 to move smoothly.

Next, as shown in FIG. 3 (B), the auxiliary guide portion 12 moves in the longitudinal direction of the casing A while the guide protrusion 2d of the hook member 2 is inserted and the hook member 2 is stable. It is a part that guides the swinging motion. The auxiliary guide portion 12 is composed of a linear sliding guide portion 12a formed in a linear slit shape and a swing guide portion 12b on which the hook member 2 swings. The linear sliding guide portion 12a serves to support the movement of the hook member 2 when the hook member 2 moves in the longitudinal direction in the casing A together with the sliding member 1. The swing guide portion 12b can move in a stable state when the hook member 2 swings.

[0028] The auxiliary guide portion 12 is connected to the main guide portion 6 and the engaged surface portion 7 of the first casing portion A.

1

Thus, the sliding member 1 and the hook member 2 serve to further ensure the operation. Therefore, the auxiliary guide portion 12 may not be formed. Further, it is possible to form only the auxiliary guide portion 12 without forming the main guide portion 6 and the engaged surface portion 7, but in this case, the sliding member 1 is slid. For this purpose, another guide part is required.

[0029] The second casing part A is mounted for mounting on an end of a guide rail 17 to be described later.

2

A projecting portion 13 is formed. The mounting protrusion 13 can be maintained in a state in which the casing A is stabilized on the guide rail 17 by being inserted along the longitudinal direction from the longitudinal end of the guide rail 17. Further, the swing guide portion 12b of the auxiliary guide portion 12 is formed on the mounting projection portion 13, so that a stable swing operation can be performed in a state where a part of the hook member 2 also projects the casing A force. Can do. The second casing part A

2 In the lower part, at the joint with the first casing part A A cut-out portion 10a is formed in which an operation slit in which the piece If and the hook operation piece 2e protrude outside the casing A can be formed.

Next, as shown in FIG. 2 (B), the coil spring 3 is formed with connecting portions 3b, 3b on both sides in the longitudinal direction of the elastic portion 3a, and one of the connecting portions 3b is the second one. Casing part A

2 is connected to the spring spring connecting portion 14, and the other connecting portion 3 b is connected to the coil spring connecting portion le of the sliding member 1. In the _second casing part A, the elastic part 3a extends.

2

Stored freely.

Next, as shown in FIGS. 2, 4 and the like, the reciprocating hydraulic pressure damper 4 is mainly composed of a cylinder housing portion 4a and a piston rod 4b. The cylinder housing 4a is filled with a liquid, and a viscous liquid is particularly preferable. Specifically, the liquid is oil or grease. Further, the material and the substance are not limited as long as the liquid is viscous. The cylinder housing 4a has a sealing property so that these liquids do not leak.

[0032] Further, a return spring is mounted in the cylinder housing 4a, and is elastically biased so that the piston rod 4b is constantly protruded from the cylinder housing 4a. . Even if the piston rod 4b is pulled into the cylinder housing 4a, the piston rod 4b can be immediately returned to the original protruding state via the return spring. In this reciprocating hydraulic pressure damper 4, the piston rod 4b is normally protruded as shown in Fig. 1 (B), and when this piston rod 4b is pulled into the cylinder housing 4a, The liquid filled in the inside, the return spring, etc. become resistance, and the elastic force F of the coil spring 3 can be attenuated.

[0033] As described above, the reciprocating hydraulic damper 4 is mounted in the casing A, and there are two types of mounting configurations. In the first type mounting configuration, the coil spring 3 and the reciprocating hydraulic danno 4 are arranged in the casing A in parallel. First, the case of at least one of the first casing A and the second casing A

1 2

A damper storage chamber 9 for storing the reciprocating hydraulic pressure damper 4 is formed in the groove A. The reciprocating hydraulic pressure damper 4 is fixed in a stationary state in the damper storage chamber 9. Specifically, as shown in FIGS. 1A to 1C, the damper storage chamber 9 is constituted by a partition wall 9a, and the reciprocating hydraulic damper 4 includes the partition wall 9a. Surrounded by 9a In this way, it is attached to the casing A.

[0034] The reciprocating hydraulic pressure damper 4 is arranged in parallel so that its piston rod 4b is substantially parallel to the coil spring 3 in the casing A. That is, the coil spring 3 and the reciprocating hydraulic damper 4 are separately arranged in the casing A. As a result, when deterioration occurs in the coil spring 3 or the reciprocating hydraulic pressure damper 4, they can be replaced and replaced relatively easily. Specifically, the coupling portion on the other side of the coil spring 3 is hooked on a coil spring coupling portion 14 formed in the partition wall 9a of the damper storage chamber 9 of the reciprocating hydraulic damper 4.

Then, the piston rod 4b of the reciprocating hydraulic pressure damper 4 enters the cylinder housing 4a while resisting the elastic force of the coil spring 3. Furthermore, as a second type mounting configuration of the coil spring 3 and the reciprocating hydraulic damper 4, as shown in FIGS. 13 (A) and 13 (B), a reciprocating hydraulic damper is provided on the inner peripheral side of the coil spring 3. 4 is now in the stowed state. In this case, the axial rear end portion of the reciprocating hydraulic damper 4 is fixed in the casing A. The coil spring 3 is configured to house the piston rod 4b and the cylinder housing part 4a of the reciprocating hydraulic pressure damper 4 in the inner peripheral part. As described above, the configuration in which the reciprocating hydraulic pressure damper 4 is accommodated in the coil spring 3 makes it possible to reduce the storage space for the coil spring 3 and the reciprocating hydraulic pressure damper 4, and thus the door closing device. Can be compact.

The reciprocating hydraulic pressure damper 4 serves to reduce the speed of the sliding member 1 in the door closing direction due to the elastic force F of the coil spring 3. In the reciprocating hydraulic pressure damper 4, the sliding member 1 is moved to the door closing side as shown in FIG. 1, FIG. 2 (B), FIG. 4 (B), FIG. The sliding member 1 and the hook member 2 are moved to the door closing side by the door closing force P which generates the resistance force T against the elastic force F and subtracts the resistance force T from the elastic force F. That is, the guide traveling body B that supports the sliding door 18 is moved by the force of F—T = P, and the initial speed Vn of the sliding door 18 is changed to that of the guide traveling body B as shown in FIG. Locking portion 15b Force S State force locked with hook member 2 Low speed Vm due to door closing force P until door closing is completed. [0037] Next, the guide member 15 is attached to the guide traveling body B, and is formed on the arm-shaped portion 15a extending along the moving direction of the guide traveling body B, and on the tip of the arm-shaped portion 15a. The locking portion 15b is formed so as to project in a hook shape in the horizontal direction with respect to the longitudinal direction of the arm-shaped portion 15a. Then, in the door closing operation, the engaged surface portion 7 is brought into contact with the contacted piece 2b of the hook member 2 that is temporarily stopped, and the hook member 2 is engaged with the engaged surface portion 7.

2

The force is also moved to the main guide portion 6, and the locking portion 15b is moved between the locked piece 2b and the contacted piece 2b.

1 2 and is engaged with the hook member 2.

[0038] The guide member 15 is connected to the guide traveling body B, and is specifically attached to the traveling portion 16 which is the main part of the guide traveling body B. The guide traveling body B serves to move the sliding door 18 along the guide rail 17 as shown in FIG. There are a guide rail 17 located above the sliding door 18 and a guide rail 17 located below the sliding door 18. Each guide rail 17 has one or a plurality of rail portions 17a, 17a. Each of the rail portions 17a and 17a of the guide rail 17 has a guide opening 17a formed below, and the rail portions 17a and 17a are formed on one side or both sides of the guide opening 17a.

1 1 2 2

[0039] The guide traveling body B corresponds to the upper guide rail 17 and is of a hang roller type, and the traveling section 16 is composed of a traveling main body section 16a and roller sections 16b and 16b. The traveling main body 16a is provided with a support shaft portion 16c that serves to adjust the position in the vertical direction with respect to the sliding door 18, and a connecting tool 19 for connecting the sliding door 18 to the lower portion of the support shaft portion 16c. Is installed. Then, the guide traveling body B and the sliding door 18 are connected via the connection tool 19.

[0040] A guide traveling body B is also mounted on the lower side of the sliding door 18. The lower guide traveling body B is mounted on the lower guide rail 17 and is mounted with an approximately equivalent guide traveling body B mounted on the upper guide rail 17. The lower guide running body B is configured to slide in the guide rail 17. A door closing tool is also attached to the lower guide rail 17, and a guide member 15 is provided on the lower guide traveling body B. The structure in which the guide member 15 is mounted on the lower guide traveling body B is substantially the same as the structure in which the guide member 15 is mounted on the upper guide traveling body B. [0041] When the upper guide rail 17 is fitted with a door closing tool and the guide traveling body B is fitted with a guide member 15, the lower guide rail 17 is not particularly fitted with a door closing tool. Sometimes. Further, the door closing device of the present invention may be mounted on the lower guide rail 17 without mounting the door closing device of the present invention on the upper guide rail 17. FIG. 14 shows furniture having a sliding door device to which the door closing device of the present invention is attached.

[0042] Next, the operation of the door closing and door opening of the sliding door 18 by the door closing device of the present invention will be described. First, the door closing operation of the sliding door will be described with reference to FIGS. 10 and 11. As shown in FIG. 10 (A), the sliding member 1 and the hook member 2 are pivotally connected, and in the initial state, the hook is hooked. The engaging portion 2c of the member 2 is engaged with the engaged surface portion 7 of the casing A (first casing portion A).

1

In a temporarily stopped state. When the sliding door 18 in the open state moves in the door closing direction (from the left side to the right side in FIG. 10 (A)), the sliding door 18 gradually approaches the hook member 2, and as shown in FIG. 10 (B), the guide member 15 Locking part 15b Tip force Hook member 2 Contacted part 2b

2

[0043] Further, when the guide traveling body B moves in the door closing direction, the locking portion 15b pushes the contact piece 2b.

2 Acting as a clasp, the engaging portion 2c is detached from the engaged surface portion 7 of the casing A while the rotating base portion 2a of the hook member 2 rotates with respect to the sliding member 1, and the hook member 2 The temporary stop state is released. Specifically, in FIG. 7B and FIG. 8B, the engaging portion 2c is detached from the engaged surface portion 7 while the rotating base portion 2a rotates clockwise. At this time, the locking portion 15b of the guide traveling body B is engaged with the contact piece 2b of the hook member 2 through the process shown in FIGS. 10 (C) and 11 (A). U-shaped dent between 2b and contacted piece 2b

2 1 2

Fits within.

[0044] Then, along with the locking operation of the locking portion 15b and the hook member 2, the temporarily stopped state of the hook member 2 is released, and the guide projection 2d formed in the flat shape of the hook member 2 substantially simultaneously. Transition to the state of contact with the interior 6 and the sliding surface portion 2d of the hook member 2 moves in the door closing direction by the elastic force F of the coil spring 3 together with the guided projection piece Id of the sliding member 1. It is. When the sliding member 1 and the hook member 2 are moved in the door closing direction by the coil spring 3, the coil spring 3 operates in the elastic biasing direction due to the elastic force F of the resistance force T force coil spring 3. As a result, the elastic force F force of the coil spring 3 reciprocating liquid The force obtained by subtracting the resistance force T of the pressure damper 4, that is, the force F – 実質 is the actual door closure Ρ. Then, the door 18 is decelerated from the initial door closing speed Vn by the person's door closing operation by this door closing door, and the door closing force P becomes a gentle speed Vm, and the door closing operation is performed. It is forcibly moved to the door closing side and reaches the end in the door closing direction to complete the door closing operation (see FIG. 11 (B), FIG. 14 etc.).

Next, the door opening operation of the sliding door 18 will be described with reference to FIG. First, as shown in FIG. 12 (A), the hook member 2 is positioned near the door closing side (right side in FIG. 12 (A)) in the initial state, and is attached to the guide traveling body B. Guide member 15 is hooked piece 2b of hook member 2.

1 and locked. Then, as shown in FIG. 12 (B), by moving the sliding door 18 in the door opening direction (from the right side to the left side in FIG. 12 (B)), the guide member 15 attached to the guide traveling body B is engaged. Main guide by pulling the locked piece 2b of the hook member 2 in the stopped state

1

The hook member 2 and the sliding member 1 are forcibly moved along the portion 6 toward the door opening side.

[0046] Further, when the sliding door 18 is moved in the door opening direction and the hook member 2 reaches the engaged surface portion 7 locations, the sliding restriction projection lg contacts the door opening side end portion of the sliding restriction portion, It serves as a stagger in the sliding operation of the sliding member 1 and the sliding of the sliding member 1 is stopped. At this time, the engaging portion 2c of the hook member 2 has reached the seven engaged surface portions. Further, by continuing the door opening operation of the sliding door 18, the hook member 2 is pulled through the rotating base 2a so that the locked piece 2b of the hook member 2 is pulled out by the locking portion 15b of the guide traveling body B. Rotate

1

The Specifically, as shown in FIGS. 7 (B), 8 (B), and 12 (C), the hook member 2 rotates counterclockwise around the rotation base 2a, and the engaging portion 2c It moves to the engaged surface portion 7 and is engaged. The hook member 2 engages and abuts the engaging portion 2c and the engaged surface portion 7 with an appropriate pressure by the inertial force of the sliding member 1 and the coil spring 3 connected to the sliding member 1. The state is maintained, whereby the hook member 2 is temporarily stopped at the seven engaged surface portions.

[0047] Since the hook member 2 is inclined at the door opening side, the top of the locked piece 2b is

The locking part 15b of the guide traveling body B is detached from the locked piece 2b due to the lower part.

Then, the locked state between the locking portion 15b and the hook member 2 is released, and the sliding door 18 is further moved to the opening side to complete the opening operation. 10 to 12, since the main guide portion 6 and the engaged surface portion 7 are formed on the first casing portion A side, the main guide portion 6 and The engaged surface portion 7 is described by an imaginary line.

[0048] The present invention is mounted at each position on the door closing side of a cabinet or the like, and a hook member 2 is rotatably mounted on a sliding member 1 that slides in an appropriate region in the casing A. The sliding member 1 is urged toward the door closing side via the coil spring 3, and the upper and lower sides of the sliding member 1 are lifted by the resistance force of the reciprocating hydraulic damper 4 that reduces the elastic force F of the coil spring 3. A state force in which the guide traveling body B that travels along the guide rail 17 is locked to the hook member 2 moves the sliding region of the sliding member 1 in the door closing direction, thereby moving the sliding sliding door 18 door. The closing operation can be obtained, and the initial operation of the door closing and opening can be made stable with no backlash.

That is, the sliding member 1 and the hook member 2 are pivotally connected so that the hook member 2 can swing. The sliding member 1 is provided with the reciprocating hydraulic pressure danno 4 for reducing the inertial force F due to the elastic force F of the coil spring 3 to move the casing A in the door closing direction. Therefore, the guide traveling body B can be moved in the door closing direction by subtracting the resistance force T of the reciprocating hydraulic damper 4 from the elastic force F of the coil spring 3, and is extremely gentle and stable. Thus, a very good door closing operation can be performed. The guide rail 17 is provided with a door closing device component (door closing tool), and the guide traveling body B performs stable door closing and opening operation without backlash by the respective guide members 15, 15. It is something that can be done.

[0050] Next, in the present invention, the sliding door 18 is forcibly drawn close to the door closing side end by bringing the sliding door 18 close to the door closing side end, and the sliding door 1 just before the door closing ends. The speed of 8 is moderately reduced, and a good door closing operation can be obtained. Furthermore, the door closing device can be made compact, and can be directly assembled to the guide rail 17 of the sliding door 18 so that the space for incorporation into the sliding door device can be reduced. In addition, the initial operation of the door closing and door opening can be made stable without V and the sliding door 18 without tilting or sliding.

That is, the hook member 2 formed with the latched piece 2b and the abutted piece 2b is composed of the sliding member 1

1 2

The engaging portion 2c protrudes upward by the turning operation of the turning base portion 2a. In the hook member 2, the sliding member 1 swings only at the position of the door opening side end portion, and the engaging portion 2 c is engageable with the engaged surface portion 7. Therefore In the case of the door closing operation, the hook member 2 can be temporarily stopped in a state in which the hook member 2 is stable on the door opening side in the initial state. In other words, the hook member 2 can be reduced in the number of failures because the swinging in the left-right direction is small when the swinging operation is performed.

[0052] Further, when the locking portion 15b of the guide traveling body B is to be locked to the hook member 2, it is locked to the sliding member and the sliding member 1 and the hook member 2 are connected to each other by the coil spring 3. The force that moves in the closing direction At this time, the sliding force 1 and the hook member 2 that move the guide traveling body B are applied by the resistance force T of the reciprocating hydraulic pressure damper 4 acting on the coil spring 3 so as to reduce the elastic force F. It can be moved in the casing A at an appropriately moderate speed. Further, in the present invention, the sliding member 1 and the hook member 2 in the casing A move along the longitudinal direction of the casing A, and the moving direction thereof is the movement of the guide traveling body B in the guide rail 17. The direction is the same.

[0053] Therefore, the casing A in the present invention can be attached to the end portion of the guide traveling body B in the longitudinal direction. Therefore, the casing A is substantially integrated with the guide rail 17 and can be easily attached to the apparatus of the present invention. In addition, it is possible to realize space saving at the mounting location. In addition, the guide rail 17 is provided with a door closing device component (door closing device), and the door closing and door opening of the sliding door 18 is connected to the door closing device component (door closing device) attached to the guide rail 17. Guide traveling body B can operate in a well-balanced manner through guide member 15, and in the initial operation of door closing and door opening, sliding door 18 does not tilt and can be stable without backlash. .

[0054] Further, since the casing A is installed in a substantially straight line at the longitudinal end portion of the guide rail 17, the entire configuration of the door closing device can be compactly assembled. The casing A is installed on the back side of the top plate and the top side of the bottom plate of the cabinet and adjacent to the upper and lower guide rails 17 in parallel, and the casing A of the door closing device component (door closing tool) is By mounting on the cabinet side, a relatively strong mounting structure can be obtained.

[0055] Next, the engaging portion 2c and the engaged surface portion 7 are formed in an arc-shaped convex surface portion and an arc-shaped concave surface portion having the pivot connection portion as the center of rotation, so that the hook member 2 is moved to the main guide portion. The movement of the hook member 2 can be made extremely smooth when moving from 6 to 7 engaged surface portions and engaging with the engaging portion 2c and the engaged surface portion 7.

Claims

The scope of the claims

[1] A hook member is rotatably attached to a sliding member that slides in an appropriate region in a casing attached to an end portion of the guide rail, and the door is connected via the sliding member cap S coil spring. A state where the guide traveling body that is urged toward the closing side and travels along the guide rail is locked to the hook member moves in the sliding region of the sliding member in the door closing direction, and A sliding door closing device comprising a piston rod and a liquid force, and comprising a reciprocating hydraulic pressure damper that reduces a moving speed due to an inertial force of the coil spring.

[2] From a sliding member, a rotating base that is pivotally connected to the sliding member, a locked piece, a contacted piece, and an engaging portion that protrudes upward by the rotating operation of the rotating base A hook member, a coil spring that elastically urges the sliding member in the door closing direction, a cylinder housing, a piston rod reciprocating in the cylinder housing, and the cylinder housing A reciprocating hydraulic pressure damper made of a liquid that fills the body in a hermetically sealed manner and provides resistance to the piston rod, the sliding member, a hook member, a coil spring, and a reciprocating hydraulic pressure damper are mounted and A main guide portion in which the sliding member is guided along the horizontal direction, a casing in which an engaged surface portion is formed near the door opening of the main guide portion and mounted on the guide rail, and travel along the guide rail Along the moving direction And a guide member having a locking portion that is locked to the locked piece and is in contact with the abutted piece at the leading end of the extending arm-shaped portion, and the hook member is the sliding member Oscillates only at the position of the door opening side end, the engaging portion can be engaged with the engaged surface portion, and the piston rod of the reciprocating hydraulic damper is the same as the moving direction of the sliding member. The sliding door closing device is characterized in that the sliding speed of the sliding member is reduced by the coil spring.

[3] The sliding door closing apparatus according to claim 2, wherein the reciprocating hydraulic pressure damper is disposed substantially in parallel with the coil spring.

4. The sliding door closing device according to claim 2, wherein a piston rod of the reciprocating hydraulic pressure damper is disposed inside the coil spring.