JP2006045803A - Door closing device for sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door closing device for a sliding door, which is brought into the state of getting close to the vicinity of the door-closing-side end of the sliding door, so that the sliding door can be forcedly drawn to the door-closing-side end, which can make a door closing operation proper by appropriately reducing a speed of the sliding door just before the completion of the closing of the door, and which stabilizes the operation of the sliding operation at the start of opening/closing. <P>SOLUTION: A hook member 2 is rotatably mounted on a sliding member 1 sliding in a proper area in a casing A which is attached to an end place of the guide rail. The sliding member 1 is urged to the door closing side via an elastic member 3. The door closing device is equipped with a resistance means D which moves in the door closing direction in a sliding area of the sliding member 1 from the state of having a guide traveling body B traveling along the guide rail 17 locked to a hook member 2, and which reduces the speed of movement brought about by an elastic force of the elastic member 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is a sliding door in various storage furniture such as a cupboard, a book shelf, a display shelf, etc., and in particular closes the sliding door to the vicinity of the door closing side end, thereby forcibly pulling the sliding door to the door closing side end. The present invention relates to a door closing device for a sliding door that can appropriately reduce the speed of the sliding door immediately before the end of the door closing to achieve a favorable door closing operation and can stabilize the operation of the sliding door at the start of opening and closing.

  Conventionally, there is a sliding door device as seen in Patent Document 1 below. And, various storage furniture such as cupboards, bookshelves, display shelves, etc. are often equipped with sliding doors equipped with glass windows. If this sliding door is storage furniture with a small frontage, 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 rail. However, in high-quality furniture and high-quality cabinets, the sliding door opening and closing operations are required to be heavy and elegant. In particular, the sliding door becomes large in large furniture, and the weight of the sliding door itself becomes very large.

JP 2002-138739 A

  Since such a large sliding door is heavy, once the sliding door starts to move, there is a risk that it will have a large impact on the door closing end due to the momentum of the sliding door. Such a state deteriorates the quality of the furniture and cannot be said to be suitable for high-quality furniture and 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 operation is reduced as much as possible. It tends to be incomplete.

  This also reduces the quality of the furniture. Furthermore, in the case of a cushioning function in the door closing operation of the sliding door, the device is often increased in size, so that the door closing device is exposed to the outside of the sliding door device, and an extra space is required. Appearance will also be impaired. Further, 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 end by bringing it close to the door closing side end portion of the sliding door particularly in high-quality furniture and cabinets, and the speed of the sliding door immediately before the door closing ends. Properly decelerates to achieve good door closing operation, further reduces the size of the door closing device, reduces the space for assembly directly into the sliding door guide rail, and stabilizes the operation when opening and closing the sliding door. The purpose is to let you.

  In view of the above, the inventor has intensively studied to solve the above problems, and as a result, the present invention is applied to a sliding member that slides in an appropriate region in the casing attached to the end portion of the guide rail. A hook member is movably mounted, the sliding member is urged toward the door closing side via an elastic member, and the guide traveling body that travels along the guide rail is engaged with the hook member. A sliding door door closing device comprising a resistance means for moving the sliding region of the moving member in the door closing direction and reducing the moving speed due to the elastic force of the elastic member. It is.

  Next, from the sliding member, the rotating base pivotally connected to the sliding member, the locked piece, the abutted piece, and the engaging portion protruding upward by the rotating operation of the rotating base A hook member, an elastic member that elastically biases the sliding member in the door closing side direction, a resistance means that reduces a door closing force of the sliding member by the elastic member, the sliding member, and the hook A main guide part to which a member, an elastic member, a resistance means are attached and the sliding member is guided in a horizontal direction, and an engaged surface part is formed near the door opening of the main guide part and attached to the guide rail And a guide traveling body that travels along the guide rail, and is engaged with the to-be-engaged piece at the tip of an arm-like portion that extends in the moving direction. The hook member includes a guide member formed with a locking portion that contacts the sliding member. Only the position of the end portion is swung, the engaging portion is freely engageable with the engaged surface portion, and the resistance means appropriately presses the sliding member to reduce the moving speed by the elastic member. The above-described problems have been solved by using a sliding door closing device.

  Next, in the above-described configuration, the resistance means is a sliding door closing device that includes a pressing portion that elastically presses in a direction substantially orthogonal to the sliding member, or the pressing portion is provided with a pressing spring. The above problem is solved by providing a sliding door closing device provided with an adjusting portion for finely adjusting the longitudinal direction of the pressing spring.

  Next, in the above-described configuration, a sliding door closing device in which a friction material is attached to the pressing tip of the pressing portion, or the sliding member with respect to the pressing tip of the pressing portion of the resistance means The pressed surface is a sliding door door closing device having an inclination so as to gradually lower in the door closing direction, thereby solving the above-mentioned problems.

  Next, in the above-described configuration, the pressing portion of the resistance means is a roller member, the roller member is stopped in the door closing direction, or the resistance means is a substantially wheel-shaped rolling member. The member is configured such that the rotation center is flat, the sliding member moves in the door closing direction, and the rolling member gradually falls downward, or the pressing portion of the resistance means has a width of the sliding member. The above-mentioned problems are solved by adopting a configuration in which both sides in the direction are pressed, and the pressing portion of the resistance means is a sliding door closing device formed on the sliding member side.

  According to the first aspect of the present invention, 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 or cabinets, the sliding door operates extremely. Good and very quiet when the door is closed. In addition, the sliding door is forcibly drawn to the end of the door closing side, and the speed of the sliding door at the end of the door closing is appropriately reduced to achieve a good door closing operation. The space for incorporating directly into the sliding door device can be reduced.

  According to invention of Claim 2, reliable operation | movement can be performed with a very simple structure. According to invention of Claim 3, a structure can be simplified very much. According to invention of Claim 4, it can respond to deterioration of a press spring according to long-term use. According to invention of Claim 5, the speed of a door closing direction can be adjusted to various things with the friction coefficient of a friction material. According to the invention of claim 6, the resistance force by the pressing portion can be appropriately increased. According to the invention of claim 7, the operation of the sliding door can be lightened in the door opening direction. According to the inventions of claims 8 to 10, the configuration of the resistance means can be extremely simplified.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The door closing device component (door closing tool) mainly composed of the sliding member 1, the hook member 2, the elastic member 3, the resistance means D, the casing A and the like fixed to the upper and lower guide rails of the present invention, and the sliding door 18 side It is comprised from the guide traveling body B with which it mounts | wears, an upper and lower guide rail, a cabinet with which these are mounted | worn. First, in the door closing device component (door closing tool), the sliding member 1 has a substantially square shaft-like sliding body 1a as shown in FIG. 2, FIG. 4, FIG. . The sliding main body 1a is formed in a substantially rectangular shape in cross section, and its upper surface side is formed as a flat surface.

As shown in FIGS. 2 and 4A, a pivot connection 1c is formed on one end side in the longitudinal direction of the sliding body 1a. The該枢supporting coupling portion 1c, the connecting shaft piece 1c ₁ is formed, through the connecting shaft piece 1c _1, as shown in FIG. 4 (A), what is pivotally connected a hook member 2 to be described later It is. Further, a guided projection piece 1d is formed in the vicinity of the pivot connecting portion 1c on the end surface in the longitudinal direction of the sliding main body portion 1a. As shown in FIGS. 2 and 4B, the guided projection piece 1d is a portion projecting in the horizontal direction so as to be substantially orthogonal to the longitudinal direction of the sliding main body 1a, and its upper surface. Is formed in a flat surface.

  And it becomes a site | part which slides along the main guide part 6 of the casing A mentioned later. Further, an elastic member connecting portion 1e to which an end portion of an elastic member 3 described later is fixed is formed below the guided projection piece 1d. Further, a sliding member operation piece 1f is formed so as to protrude downward from the guided projection piece 1d. The sliding main body 1a is formed with a sliding restricting projection 1g that engages with a sliding restricting portion 11 formed on the casing A side to be described later. The sliding restricting protrusion 1g 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.

  Further, a projecting portion 1h projecting upward is formed at the door opening side end portion of the sliding member 1, and the tip of the projecting portion 1h abuts on a hook member 2 described later, so that the swinging range of the hook member 2 is increased. It may also serve to regulate Here, the door closing side and the door opening side will be described. The door closing side is a direction of movement when the sliding door 18 is closed, and is a direction from the left side to the right side in FIG. The door opening side is a direction from the right side to the left side in FIG. Further, in the casing A, as shown in FIG. 1B, the right side is the door closing side, and the left side is the door opening side.

Next, the hook member 2 includes a rotation base 2a, a hook 2b, and an engagement portion 2c that protrudes upward by the swinging operation of the rotation base 2a. Its hook 2b is configured as engagement piece 2b ₁ from the abutting piece 2b _2, it is set substantially parallel to the該被locking piece 2b ₁ and the abutment piece 2b _2. As shown in FIGS. 5A and 5B, the locked piece 2b ₁ is formed with a dimension in the height direction lower than that of the contacted piece 2b ₂ .

Further, the shape between the engagement piece 2b ₁ and the abutment piece 2b ₂ has a recessed portion 2b ₃ of substantially U-shaped guide member of the guide traveling body B to be described later to the recess 2b ₃ 15 can be inserted. Its rotation base 2a, the sliding pivot hole 2a ₁ of the connecting shaft piece 1c ₁ formed pivotally connected portion 1c is inserted into the member 1 is formed, the connecting shaft piece 1c ₁ is pivotally supported By being inserted into the hole 2a ₁ , the sliding member 1 and the hook member 2 are connected, and the hook member 2 is rotatable in the vertical direction with respect to the sliding member 1 [FIGS. See FIG. 7 (A), FIG. 8, etc.]. The engagement portion 2c is a portion which is formed in an arc shape around the pivot hole 2a ₁ of the rotation base 2a. 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, so as to be rotatable in an arc shape. As described above, the center when the connecting shaft piece 1c ₁ of the pivot connecting portion 1c between the hook member 2 and the sliding member 1 is swung by the pivot supporting hole 2a ₁ is the arc of the engaging portion 2c. Is the center of

  In addition, a guide protrusion 2 d may be formed on the hook portion 2 b 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 the hook member 2 also rotates. It is intended to make good and accurate.

  Furthermore, as shown in FIG. 4B, FIG. 5, etc., a hook operation piece 2e is formed on the rotating base 2a downward. The hook operation piece 2e serves to forcibly move the casing A to the outside of the casing A via the hook operation piece 2e when it is stored in the casing A due to a malfunction. And the hook operation piece 2e protrudes to the outside of the casing A together with the sliding member operation piece 1f, and can be operated to forcibly move the sliding member 1 and the hook member 2 from the outside of the casing A (FIG. 3). Further, a locking projection piece 2f is formed at the top portion of the rotation base portion 2a and at a right angle from the width direction of the hook portion 2b. When the hook member 2 moves along the main guide portion 6 described later together with the sliding member 1, the locking projection piece 2 f moves in contact with the main guide portion 6. Is.

Next, the casing A is divided into two parts and includes a first casing part A ₁ and a second casing part A ₂ . FIG. 6 is a view as seen from the inside of the first casing part A ₁ . Its inside side of the first first body 5 of the casing portion A _1, and main guide portion 6 is formed. The main guide portion 6 is a portion which is formed linearly along the first longitudinal direction of the casing portion A _1, and its lower side and is formed in a flat shape. Specifically, the main guide portion 6 has a shape that bulges inward from the surface of the first main body 5.

  The main guide portion 6 is formed in a substantially half region on the door opening side in the longitudinal direction of the first main body 5. As described above, the main guide portion 6 is formed with a flat bottom surface, the upper end surface of the guided projection piece 1d 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 the opening side end portion of the main guide portion 6. 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 radii of curvature of the engaging portion 2 c and the engaged surface portion 7 are substantially equal, and the engaging portion 2 c can smoothly rotate along the engaged surface portion 7.

  Then, when the hook member 2 moves along the main guide portion 6 and reaches the position of the engaged surface portion 7, the hook portion 2 moves so that the engaging portion 2 c slides along the engaged surface portion 7. 2 can be swung. Then, when the engaging portion 2 c of the hook member 2 is engaged with the engaged surface portion 7, the hook member 2 is temporarily stopped against the elastic force of the elastic member 3 at the seven engaged surface portions. The temporary stop state refers to a state in which the stop can be maintained to such an extent that it can move when the locking portion 15b of the guide traveling body B comes into contact with the guide travel body B, although it does not operate due to some vibration or the like.

At this time, the hook member 2 is in an inclined state so that the upper end of the locked piece 2b ₁ is lower than the upper end of the abutted piece 2b ₂ . In this state, the guide member 15 of the guide traveling body B is in a state in which it can freely enter and exit between the locked piece 2b ₁ and the contacted piece 2b ₂ . Furthermore the first casing portion A in _one resistance means D are mounted. A guided projection piece 1 d of the sliding member 1 is brought into contact with the lower side of the main guide portion 6. The condition is that the elastic force F of the elastic member 3 is larger than the resistance force T generated by the resistance means D, but the difference between the elastic force F and the resistance force T is appropriately set.

Next, the second casing portion A ₂ will be described. FIG. 1 (B) is a view of the inside of the second casing part A _{2, in} which the sliding member 1, the hook member 2, the elastic member 3 and the resistance means D are mounted. 3 (B) is a view of the second casing section A ₂ seen from the outside. FIG. 3A is a view in which the second casing portion A ₂ and the first casing portion A ₁ are combined, and is a view seen from the first casing portion A ₁ side.

  The second body 10 is formed with a sliding restricting portion 11 and an auxiliary guide portion 12. The sliding restricting portion 11 is linear, and the sliding restricting projection 1g of the sliding member 1 is inserted to restrict the range of movement of the sliding member 1 within the casing A. That is, the sliding member 1 can appropriately 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. 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. Say. The sliding restricting portion 11 is formed in a slit shape, and has a groove width that allows the sliding restricting projection 1g of the sliding member 1 to move smoothly.

  Next, the auxiliary guide portion 12 is a portion that guides the movement and swing operation of the casing A in the longitudinal direction while the guide protrusion 2d of the hook member 2 is inserted and the hook member 2 is stable. The auxiliary guide portion 12 includes 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 performs a swing operation.

This auxiliary guide portion 12 has a role of the operation of the sliding member 1 and the hook member 2 according to the first main guide portion 6 and the engaged surface portion 7 of the casing portion A ₁ to more securely. 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. Another guide part is required.

In the second casing portion A ₂ , mounting protrusions 13 for mounting on end portions of an upper guide rail 17 and a lower guide rail 20 described later are formed. The mounting protrusion 13 can maintain the casing A in a stable state 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 with a part of the hook member 2 protruding from the casing A. Can do. Note that the lower part of the second casing part A ₂ is for operation in which the sliding member operation piece 1 f and the hook operation piece 2 e are projected to the outside of the casing A at the joint portion with the first casing part A ₁ . A cut portion 10a is formed in which a slit can be formed.

Then, the elastic member 3, the connecting portion 3b, 3b are formed on both sides longitudinally of the elastic portions 3a, coupling portion 3b of the one of which is connected to the second elastic member connecting portion 14 of the casing section A _2, The other end connecting portion 3 b is connected to the elastic member connecting portion 1 e of the sliding member 1. The elastic part 3a is a coil spring. In the second casing part A ₂ , the elastic part 3 a is retractably accommodated to form a spring accommodating part 9. The elastic member 3 is accommodated in the spring accommodating portion 9 so as to be linear. Further, as shown in FIG. 13 (A), the elastic member 3 may be folded and stored so that the elastic portion 3a is curved and folded so as to have a substantially horizontal U shape. In particular, the curved portion of the elastic member 3 in the spring housing portion 9 is formed in an arc shape or a C shape.

Next, the resistance means D serves to reduce the speed in the door closing direction of the sliding member 1 due to the elastic force F of the elastic member 3. There are various types of resistance means D. As the first type, as shown in FIGS. 1 and 2, a pressing portion 22 is mounted. The pressing portion 22 reduces the moving speed of the sliding member 1 in the door closing direction by pressing from a direction substantially orthogonal to the longitudinal direction of the sliding member 1. The pressing portion 22 presses the pressed surface 1a ₁ of the sliding main body portion 1a of the sliding member 1 by the elastic force of the pressing spring 23 attached to the casing A. The pressing portion 22 includes a pressing plate 22a and a spring mounting portion 22b. The pressing plate 22a has a plate-like shape, and the spring mounting portion 22b is a portion that plays a role of mounting the pressing spring 23 on the pressing portion 22 in a stable state.

A pressing portion guide portion 24 is formed on the casing A side, and the pressing portion 22 and the pressing spring 23 are mounted in the pressing portion guide portion 24. Specifically, as shown in FIG. 1B, the pressing portion guide portion 24 is formed on the second casing portion A ₂ side, or the second casing portion A ₂ and the first casing portion A _1. Each side is divided and formed. One side in the longitudinal direction of the pressing spring 23 may be fixed to the pressing portion guide portion 24. The portion of the pressing plate 22a that contacts the sliding member ₁ is referred to as a pressing surface 22a ₁ . Pressing surfaces 22a ₁ is formed in a flat shape, it is possible to pressing surfaces 22a ₁ is by the elastic force of the pressing spring 23 abuts the sliding member 1 has an appropriate pressing force. The contact state between the pressing surface 22a ₁ and the sliding member 1 generates a resistance force T against the elastic member 3 by generating appropriate friction, and the door of the sliding member 1 by the elastic member 3 is generated. The moving speed in the closing direction can be reduced.

Depending on the friction coefficient of the pressing surface 22a ₁ and the elastic force of the pressing spring 23, the moving speed of the sliding member 1 in the door closing direction changes appropriately. A pressed surface 1a ₁ of the sliding member 1, to the site and the pressing surface 22a ₁ of the pressing portion 22 abuts is sometimes grease is applied. That is, when the friction between the pressing surface 22a ₁ and the sliding member 1 is too large, the presence of grease on both the contacting surfaces reduces the friction coefficient, and the sliding member 1 is closed in the door closing direction. This adjusts the moving speed at.

Furthermore, as a modification of the first type resistance means D, a friction material 25 is attached to the pressing surface 22a ₁ which is the pressing tip of the pressing portion 22 as shown in FIGS. 14 (A) and 14 (B). Sometimes it is done. The friction material 25 has a sheet shape and is fixed to the pressing surface 22a ₁ via an adhesive or the like. There are various types of the friction material 25, and those having a rough surface shape having a large friction coefficient and those having a smooth surface in which a surface having a very small friction coefficient is extremely smooth exist. When the elastic force F of the elastic member 3 and the moving speed of the sliding member 1 by the elastic member 3 in the door closing direction are adjusted to a desired speed, the friction material 25 having various friction coefficients is appropriately selected. By selecting one having a friction coefficient, an appropriate resistance force T is generated and used.

Next, as another modification of the first type resistance means D, as shown in FIG. 13, an adjustment portion 26 that can finely adjust the dimension in the longitudinal direction of the pressing spring 23 may be provided. The adjusting portion 26 is attached to the pressing portion guide portion 24 of the casing A. As shown in FIGS. 13B and 13C, the adjustment portion 26 includes an adjustment end portion 26a and an external screw portion 26b. Its adjusting end 26a, the protrusion 26a ₁ in order to fix the pressing spring 23 is formed, the pressing spring 23 is connected to the protrusion portion 26a _1. An inner screw portion 26c is formed in the pressing portion guide portion 24 of the casing A, and the outer screw portion 26b and the inner screw portion 26c are screwed together (see FIG. 13B). A driver groove 26d is formed in the outer screw portion 26b, and the length of the pressing spring 23 in the longitudinal direction is finely adjusted from the outside of the casing A to the groove 26d with a tool such as a screwdriver to adjust its elastic force. (See FIG. 13C).

Furthermore, as shown in FIG. 13A, the pressed surface 1a ₁ that is a contact surface with the pressing portion 22 of the sliding member 1 has an inclination angle θ so as to gradually decrease in the door closing direction. It may be an inclined surface. By making this pressed surface 1a ₁ into an inclined surface, when the sliding member 1 moves in the door closing direction, the pressing portion 22 moves relative to the inclined surface so as to climb upward. Become. And the resistance force T with respect to the movement of the sliding member 1 by the press part 22 can be enlarged further. This is employed particularly when the elastic force F of the elastic member 3 is too large.

Next, as the second type resistance means D, a roller member 27 is used, and the roller member 27 is in a stopped state in the door closing direction of the sliding member 1 and is configured to be rotatable in the door opening direction. [See FIGS. 15A and 15B]. Specifically, as shown in FIGS. 15B and 15C, the roller member 27 includes a pawl wheel mechanism portion 28. The roller member 27 is a roller 27a supported by a holder 27b. The holder 27 b is attached to the pressing portion guide portion 24 of the casing A. The pawl wheel mechanism portion 28 includes a pawl wheel 28a and a pawl wheel 28b, and the pawl wheel 28a is fixed to the roller 27a. The roller 27a is, when the sliding member 1 is moved in the door-closing direction, without rotation, friction is generated between the pressed surface 1a ₁ of the sliding body part 1a, the sliding body part 1a A resistance force T in the moving direction can be generated, and the speed of the sliding door 18 can be appropriately reduced (see FIG. 15D). Further, the roller 27a, when the sliding member 1 is moved in the door-opening direction is adapted to be able to rotate with respect to the pressed surface 1a ₁ of the sliding member 1, door open the sliding door 18 In the direction, it can be moved with a relatively small force (see FIG. 15E).

Next, as shown in FIG. 16A, the third type of resistance means D is a substantially wheel-shaped rolling member 29, and the rolling member 29 has a rotational center that is flattened. As a material of the rolling member 29, a rubber material is suitable. The sliding member 1 moves from the door opening side toward the door closing side, and the rolling member 29 that is in contact with the pressed surface 1a ₁ gradually lowers downward. A distance d between the diameter center p _{0 of the} rolling member 29 and the rotation center p ₁ is set. The amount of this distance d may be small. Further, the half circumference of the rolling member 29 and the moving distance of the sliding member 1 are made to substantially coincide. Then, when the sliding member 1 is in an initial state (a state in which the sliding member 1 is located on the door open side as shown in FIG. 16A), the sliding member 1 and the rolling member 29 are in contact with each other. The contact position is set at the door closing side end of the sliding member 1. As a result, the sliding member 1 moves in the door closing direction, the rolling member 29 rotates, and the pressing force of the rolling member 29 gradually increases against the sliding member 1, and finally the distance d The rolling member 29 presses the pressed surface 1a ₁ of the sliding member 1 by the amount of.

  Further, as shown in FIGS. 17A and 17B, there is a fourth type resistance means D that presses both side surfaces of the sliding member 1 in the width direction. This is to generate a resistance force T against the movement of the sliding member 1 by the elastic member 3 by sandwiching and pressing both sides of the sliding body 1a in the width direction of the sliding member 1. Furthermore, the fifth type resistance means D is mounted on the sliding member 1 side (see FIG. 18). The resistance means D includes a spherical body 30, a pressing spring 23, and a housing portion 31, and the housing portion 31 is attached to the sliding member 1, and the pressing spring 23 and the spherical body 30 are housed in the housing portion 31. The spherical body 30 is pressed against the upper surface of the casing A by the pressing spring 23.

  In the resistance means D, the sliding member 1 is generated by the door closing force P obtained by subtracting the resistance force T from the elastic force F by generating the resistance force T against the elastic force F that moves the sliding member 1 to the door closing side. And the hook member 2 is moved to the door closing side. That is, the guide traveling body B that supports the sliding door 18 is moved by the force of FT = P, and the initial speed Vn of the sliding door 18 is changed to the guide traveling body B as shown in FIG. It is possible to achieve a low speed Vm by the door closing force P from the state where the locking portion 15b is locked to the hook member 2 until the door closing is completed.

Next, the guide member 15 is attached to the guide traveling body B, and extends in the moving direction of the guide traveling body B, and an engaging portion formed at the tip of the arm-shaped section 15a. 15b, and the locking portion 15b is formed so as to protrude in the horizontal direction with respect to the longitudinal direction of the arm-like portion 15a. Then, in the door closing operation, the hooked member 2 is brought into contact with the contact piece 2b _{2 of the} hook member 2 which is temporarily stopped on the engaged surface portion 7 so that the hook member 2 is moved from the engaged surface portion 7 to the main guide portion 6. While being moved, the locking portion 15b is accommodated between the locked piece 2b ₁ and the contacted piece 2b ₂ and is engaged with the hook member 2.

The guide member 15 is connected to the guide travel body B, and is specifically attached to the travel unit 16 that is the main part of the guide travel body B. As shown in FIG. 9, the guide traveling body B serves to move the sliding door 18 along the guide rail 17. The guide rail 17 includes those that are located above the sliding door 18 and those that are located below the sliding door 18. Each guide rail 17 is formed with one or a plurality of rail portions 17a, 17a. Rail portions 17a, 17a of the guide rails 17 are all the guide opening 17a ₁ downward is formed, and the guide rail portion 17a ₂ on one side or on both sides of the opening 17a _1, 17a ₂ are formed.

  The guide traveling body B corresponds to the upper guide rail 17 and is of a hang roller type, and the traveling portion 16 is composed of a traveling main body portion 16a and roller portions 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 connection tool 19 for connecting to the sliding door 18 is provided below the support shaft portion 16c. It is installed. And the guide traveling body B and the sliding door 18 are connected via the connection tool 19. FIG.

  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 on the lower part of the guide traveling body B which is substantially equivalent to the guide traveling body B mounted on the upper guide rail 17. The guide traveling 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.

  In addition, when the door closing tool is mounted on the upper guide rail 17 and the guide member 15 is mounted on the guide traveling body B, the door closing tool may not be mounted on the lower guide rail 17 in particular. . 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. In addition, FIG. 14 shows the furniture which has the sliding door apparatus with which the door closing apparatus of this invention was mounted | worn.

Next, each operation | movement of the door closing of the sliding door 18 and the door opening by the door closing apparatus in this invention is demonstrated. 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 to each other. The two engaging portions 2c are in a temporarily stopped state in a state where they are engaged with the engaged surface portion 7 of the casing A (first casing portion A ₁ ). 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. 10A), the sliding door 18 gradually approaches the hook member 2, and the engagement of the guide member 15 as shown in FIG. 10B. stopping portion 15b tip comes into contact with the contact piece 2b ₂ of the hook member 2.

Further, when the guide traveling member B moves in the door-closing direction, the engaging portion 15b acts to press the contact piece 2b _2, the rotation of the rotation base 2a hook member 2 with respect to the sliding member 1 However, the engaging portion 2c is detached from the engaged surface portion 7 of the casing A, and the temporarily stopped state of the hook member 2 is released. Specifically, in FIGS. 7B and 8B, the engaging portion 2c is detached from the engaged surface portion 7 while the rotating base portion 2a rotates in the clockwise direction. At this time, the engaging portion 15b of the guide running body B is through the process as shown in FIG. 10 (C) and FIG. 11 (A), the while in contact with the contact piece 2b ₂ of the hook member 2 equivalents engaged It fits in a substantially U-shaped recess between the piece 2b ₁ and the abutted piece 2b ₂ .

  Then, together with the locking operation between the locking portion 15b and the hook member 2, the temporarily stopped state of the hook member 2 is released, and the guide protrusion 2d formed in the flat shape of the hook member 2 is substantially simultaneously with the main guide portion 6. The sliding surface portion 2d of the hook member 2 moves in the door closing direction by the elastic force F of the elastic member 3 together with the guided projection piece 1d of the sliding member 1. When the sliding member 1 and the hook member 2 are moved in the door closing direction by the elastic member 3, the resistance force T operates in the elastic biasing direction by the elastic force F of the elastic member 3. Accordingly, a force obtained by subtracting the resistance force T of the resistance means D from the elastic force F of the elastic member 3, that is, a force FT becomes a substantial door closing force P. The sliding door 18 is decelerated from the initial door closing speed Vn by the person's door closing operation by the door closing force P, and the door closing force P becomes a gentle speed Vm, and the door closing operation is performed. The door is forcibly moved to the door closing side, reaches the end in the door closing direction, and completes the door closing operation (see FIG. 11B).

Next, the door opening operation | movement of the sliding door 18 is demonstrated based on FIG. First, as shown in FIG. 12 (A), the hook member 2 is positioned close to the door closing side (right side in FIG. 12 (A)) in the initial state, and the guide mounted on the guide traveling body B. The member 15 is in a locked state with the locked piece 2 b ₁ of the hook member 2. Then, as shown in FIG. 12B, the guide member 15 mounted on the guide traveling body B is locked by moving the sliding door 18 in the door opening direction (from the right side to the left side in FIG. 12B). The hook member 2 and the sliding member 1 are forcibly moved to the door opening side along the main guide portion 6 so as to pull the locked piece 2b ₁ of the hook member 2 in the state.

Further, when the sliding door 18 is moved in the door opening direction and the hook member 2 reaches the seven engaged surface portions, the sliding restriction projection 1g comes into contact with the door opening side end of the sliding restriction portion, and the sliding member It serves as a stopper in the sliding operation 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 moves the rotating base 2 a so that the locked piece 2 b ₁ of the hook member 2 is pulled out by the locking portion 15 b of the guide traveling body B. Rotate through. Specifically, as shown in FIGS. 7B, 8B, and 12C, the hook member 2 rotates counterclockwise around the rotation base 2a, and the engagement portion 2c The engaged surface portion 7 is moved and engaged. The hook member 2 is in a state in which the engaging portion 2c and the engaged surface portion 7 are engaged with each other by an appropriate pressure by the elastic force of the sliding member 1 and the elastic member 3 connected to the sliding member 1. Thus, the hook member 2 is temporarily stopped at the seven engaged surface portions.

Its hook member 2, since in a state of being inclined at door open side, by the top portion of the locked piece 2b ₁ is lowered, the engaging portion 15b of the guide running body B is locked piece 2b ₁ is disengaged, the locking 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 ₁ side, the main guide portion 6 and the engaged surface portion 7 are I will describe it in imaginary lines.

The present invention is attached to the door closing side portions of the upper portion 30 and the bottom portion 32 of the opening 33 of the cabinet, respectively, and can be freely rotated by the sliding member 1 that slides in an appropriate region in the casing A. The hook member 2 is mounted, the sliding member 1 is urged to the door closing side via the elastic member 3, and the resistance force T by the resistance means D that reduces the elastic force F of the elastic member 3 is The sliding area of the sliding member 1 is closed from the state where the upper guide traveling body B ₁ and the lower guide traveling body B ₂ traveling along the guide rail 17 and the lower guide rail 20 are locked to the hook member 2. By moving in the direction, a gentle door closing operation of the sliding door 18 can be obtained, and the initial operation of the door closing and door opening can be made stable and free of backlash.

That is, the sliding member 1 and the hook member 2 are pivotally connected so that the hook member 2 can swing freely. Further, the force that the sliding member 1 moves in the casing A in the door closing direction depends on the elastic force F of the elastic member 3, but since the resistance means D that reduces the elastic force F is provided, the guide travels. The body B can be moved in the door closing direction by a force obtained by subtracting the resistance force T of the resistance means D from the elastic force F of the elastic member 3, and can perform a very good and stable door closing operation. . Both the upper guide rail 17 and the lower guide rail 20 are provided with door closing device components (door closing tool), and the upper guide traveling body B ₁ and the lower guide traveling body B ₂ are respectively connected by the guide members 15 and 15. The door can be stably closed and opened without play.

Then, the sliding member 1, upper and rotation base 2a and locked piece 2b ₁ to pivotally coupled to the sliding member 1 and the contact piece 2b ₂ at rotation of the rotation base 2a A hook member 2 composed of an engaging portion 2c projecting to the side, an elastic member 3 for elastically urging the sliding member 1 in the door closing direction, and a resistance force for reducing the elastic force F of the elastic member 3 A resistance means D for generating T, a main guide portion 6 to which the sliding member 1, the hook member 2, the elastic member 3 and the resistance means D are mounted and the sliding member 1 is guided along a horizontal direction; Casing A mounted on each of the upper guide rail 17 and the lower guide rail 20 formed with the engaged surface portion 7 at the door opening portion of the main guide portion 6 and mounted on the opening 33 of the cabinet, and the guide rail setting a guide running body B ₁ and the lower guide running body B ₂ on which travels along the 17 Is a guide member 15 the locking portion 15b is formed the at the tip of the arm portion 15a engaged with the engaging piece 2b ₁ and the abutted piece 2b ₂ abutting extending along the moving direction The hook member 2 is configured such that the sliding member 1 swings only at the position of the door opening side end portion, and the engaging portion 2c is freely engageable with the engaged surface portion 7. 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 speed of the sliding door 18 at the end of the door closing is moderately reduced to achieve a good door closing operation. Obtainable. Furthermore, the door closing device can be made small, and the space for assembling the sliding door device directly into the guide rail 17 of the sliding door 18 can be reduced. Further, the sliding door 18 can be made stable and free from tilting in the initial operation of the door closing and door opening.

That is, the hook member 2 formed with the latched piece 2b ₁ and the abutted piece 2b ₂ is swingable with respect to the sliding member 1, and the pivoting operation of the pivot base 2a is performed. Thus, the engaging portion 2c protrudes upward. 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 where the hook member 2 is stable on the door opening side in the initial state. In other words, the hook member 2 is less likely to swing in the left-right direction when performing a swinging motion, and therefore can be extremely troublesome.

  Further, when the locking portion 15b of the guide traveling body B is to be locked to the hook member 2, it is smoothly locked and the sliding member 1 and the hook member 2 are moved in the door closing direction by the elastic member 3. However, at this time, the resistance force T of the resistance means D acts on the elastic member 3 so as to reduce the elastic force F, and the sliding member 1 and the hook member 2 that move the guide traveling body B are moderately moderate in the casing A. It can be moved at a reasonable speed. 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 same as the moving direction of the guide traveling body B in the guide rail 17. Are the same.

Therefore, the casing A in the present invention can be mounted on the end portion of the guide traveling body B in the longitudinal direction, and therefore is substantially integrated with the guide rail 17 so that the apparatus of the present invention can be mounted easily and the mounting area can be saved. Can be realized. The upper guide rail 17 and the lower guide rail 20 are each provided with a door closing device component (door closing tool). When the sliding door 18 is closed and opened, the upper guide rail 17 and the lower guide rail 20 are provided. The door closing device component (door closing tool), the upper guide traveling body B ₁ and the lower guide traveling body B ₂ mounted on each of the doors can operate in a well-balanced manner via the guide members 15, 15. And, in the initial operation of the door opening, the sliding door 18 can be made stable without any backlash without tilting.

  In the above-described configuration, the casing A is installed in a substantially straight line at the longitudinal ends of the upper guide rail 17 and the lower guide rail 20, so that the entire configuration of the door closing device can be compactly integrated. Further, the casing A is installed on the top plate rear surface side and the bottom plate upper surface side of the cabinet and adjacent to the upper guide rail 17 and the lower guide rail 20 in a parallel state, so that the door closing device component (door closing tool) is installed. Since the casing A is attached to the upper part 30 and the bottom part 32 of the cabinet, a relatively strong attachment structure can be obtained.

  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 support portion as a rotation center, so that the hook member 2 is covered from the main guide portion 6. The movement of the hook member 2 can be made extremely smooth when moving to the seven engaging surface portions and engaging the engaging portion 2c and the engaged surface portion 7.

(A) is the principal part front view made into the partial cross section of the state with which the door closing apparatus of this invention was mounted | worn with the sliding door, (B) is the principal part longitudinal cross-sectional front view of the door closing apparatus provided with the 1st type resistance means. , (C) is an enlarged view of the resistance means. It is a disassembled perspective view of a sliding member, a hook member, and resistance means. (A) is the side view which looked at the principal part of the door closing apparatus from the 1st casing part side, (B) is the side view which looked at the principal part of the door closing apparatus from the 2nd casing part side. (A) is a side view of a sliding member and a hook member, (B) is a perspective view of a sliding member and a hook member. (A) is an enlarged side view of the sliding member and the hook member in an inclined state, and (B) is an enlarged side view of the sliding member and the hook member. It is a side view of a 1st casing part. (A) is an action figure in the state in which the hook member is located in the main guide part, (B) is an action figure in the state in which the hook member is located in the to-be-engaged surface part. (A) is an enlarged action figure in the state in which the hook member is located in the main guide part, (B) is an enlarged action figure in the state in which the hook member is located in the to-be-engaged surface part. (A) is a perspective view of a guide traveling body, (B) is a vertical side view of a sliding door device equipped with the door closing device of the present invention. (A) is an operation view of the state where the locking portion of the guide traveling body is close to the hook member of the casing, and (B) is a state where the locking portion of the guide traveling body is in contact with the contacted piece of the hook member of the casing. FIG. 4C is an operation diagram in a state where the locking portion of the guide traveling body is locked to the hook member of the casing. (A) is the action figure which the latching | locking part of the guide traveling body latched to the hook member of the casing, and canceled the temporary stop state of the hook member, (B) is the action figure of the state which the door closing was completed. (A) is an operation view of the door opening start when the locking portion of the guide traveling body is locked to the hook member in the casing, and (B) is a movement of the sliding door in the door opening direction to move the hook member to the door opening end. FIG. 4C is an operation diagram in a state in which the hook is moved, and (C) is an operation diagram in which the engaging portion of the guide traveling body is detached from the hook member of the casing and the hook member is temporarily stopped. (A) The principal part longitudinal cross-sectional front view of the door closing apparatus which comprised the modification of the 1st type resistance means, (B) is an expanded sectional view of a resistance means, (C) is an exploded perspective view of a resistance means. (A) The expanded sectional view which comprises another modification of the 1st type resistance means, (C) is an exploded perspective view of a resistance means. (A) Main part longitudinal front view of a door closing apparatus equipped with a second type resistance means, (B) is an enlarged front view of the resistance means, (C) is an enlarged side view of the resistance means, and (D) is resistance force (E) is an action diagram in a state where no resistance force is generated. (A) Main part longitudinal front view of a door closing device equipped with a third type resistance means, (B) is an action diagram in a state where resistance force is generated, (C) is an action diagram in a state where the resistance force is maximum. is there. (A) The principal part longitudinal cross-sectional front view of the door closing apparatus provided with the 4th type resistance means, (B) is an enlarged view of a resistance means. (A) The principal part longitudinal cross-sectional front view of the door closing apparatus which equipped the 5th type resistance means, (B) is an enlarged view of a resistance means. Action schematic diagram showing operation of sliding door in the present invention

Explanation of symbols

A ... casing, B ... guide running body, D ... resistance means, 1 ... sliding member, 2 ... hook member, 3 ... elastic member, 2a ... rotation base, 2b ₁ ... engagement piece, 2b ₂ ... the person Piece,
15 ... Guide member, 17 ... Guide rail, 23 ... Pressing spring, 25 ... Friction material,
29: Rolling member.

Claims (10)

  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 sliding member is biased to the door closing side through an elastic member. The guide traveling body that travels along the guide rail moves in the door closing direction from the state in which the guide traveling body is locked to the hook member, and the moving speed by the elastic force of the elastic member is increased. A sliding door closing device comprising a resistance means D for reducing the sliding door.   A hook member comprising a sliding member, a pivot base portion pivotally connected to the slide member, a latched piece, a contact piece, and an engagement portion projecting upward by the pivoting operation of the pivot base portion An elastic member that elastically biases the sliding member in the door closing direction, a resistance means that reduces a door closing force of the sliding member by the elastic member, the sliding member, the hook member, A main guide part in which members and resistance means are mounted and the sliding member is guided along a horizontal direction, and a casing in which an engaged surface part is formed near the door opening of the main guide part and mounted on the guide rail And a latch that is provided on a guide traveling body that travels along the guide rail and that is engaged with the latched piece and abuts against the abutted piece at the tip of an arm-like portion that extends along the moving direction. And the hook member is configured such that the sliding member is a door opening side end portion. Only the position is swung, the engaging portion is freely engageable with the engaged surface portion, and the resistance means appropriately presses the sliding member to reduce the moving speed by the elastic member. A sliding door closing device.   3. The sliding door closing device according to claim 1, wherein the resistance means includes a pressing portion that elastically presses the sliding member in a direction substantially orthogonal to the sliding member.   4. The sliding door closing device according to claim 3, wherein the pressing portion is provided with a pressing spring, and an adjusting portion for finely adjusting a longitudinal direction of the pressing spring is provided.   The sliding door closing device according to claim 3 or 4, wherein a friction material is attached to a pressing tip of the pressing portion.   6. The pressing surface of the pressing portion of the resistance means according to claim 3, wherein the pressed surface of the sliding member has an inclination so as to gradually lower toward the door closing direction. A sliding door closing device.   4. The sliding door closing device according to claim 3, wherein the pressing portion of the resistance means is a roller member, and the roller member is stopped in the door closing direction.   3. The rolling device according to claim 1, wherein the resistance means is a substantially wheel-shaped rolling member, and the rolling member has a center of rotation and the sliding member moves in the door closing direction and the rolling. A door closing device for a sliding door, characterized in that the member gradually falls downward.   The sliding door closing device according to claim 1 or 2, wherein the pressing portion of the resistance means is configured to press both sides in the width direction of the sliding member. The sliding door closing device according to claim 1 or 2, wherein the pressing portion of the resistance means is formed on the sliding member side.

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