JP2006063767A - Sliding door closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stabilize the operation of a sliding door for various kinds of storage furnitures including a china cabinet, a bookshelf, and a display cabinet when starting opening/closing by particularly locating the sliding door closer to a door closing side end so as to forcibly pull the sliding door near the door closing side end and properly reducing the speed of the sliding door just before finishing closing for good door closing operation. <P>SOLUTION: A hook member 2 is turnably mounted on a sliding member 1 which slides in a proper region of a casing A mounted at the end of a guide rail. The sliding member 1 is energized via a coil spring 3 to the door closing side. In the state of being locked to the hook member 2, a guide travelling body B which travels along the guide rail is moved in the sliding region of the sliding member 1 in the door closing direction. A reciprocating hydraulic damper 4 consists of a cylinder casing portion 4a, a piston rod 4b and liquid for reducing the moving speed of the coil spring 3 with elastic force. <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 object 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 a good door closing operation, further reduces the size of the door closing device, attaches it directly to the guide rail of the sliding door, requires little space for installation in the sliding door device, and further operates when opening and closing the sliding door. The purpose is to stabilize.

  In view of the above, the inventor has intensively studied to solve the above problems, and as a result, the invention of claim 1 is slid to slide in an appropriate region within the casing attached to the end portion of the guide rail. A hook member is rotatably mounted on the member, the sliding member is biased to the door closing side via a coil spring, and a guide traveling body that travels along the guide rail is locked to the hook member And a reciprocating hydraulic damper that moves in the sliding area of the sliding member in the door closing direction and that is composed of a cylinder housing, a piston rod, and a liquid, and that reduces the moving speed due to the elastic force of the coil spring. The above-described problems are solved by using a sliding door closing device.

  Next, the invention of claim 2 is directed upward by a sliding member, a pivoting base portion pivotally connected to the sliding member, a latched piece, a contacted piece, and a pivoting operation of the pivoting base portion. A hook member composed of a protruding engaging portion, a coil spring that elastically biases the sliding member in the door closing side direction, a cylinder housing portion, and a piston rod that can reciprocate within the cylinder housing portion; A reciprocating hydraulic damper comprising a liquid that seals the cylinder housing and provides resistance to the piston rod, a sliding member, a hook member, a coil spring, and a reciprocating hydraulic damper are mounted. A main guide part in which the sliding member is guided along the horizontal direction, a casing in which an engaged surface part is formed near the door opening of the main guide part and attached to the guide rail, and along the guide rail Provided on the traveling guide body , And a guide member formed with a locking portion that is locked to the locked piece and is in contact with the contacted piece at the tip of an arm-like portion that extends along the moving direction. The sliding member swings only at the position of the door opening side end, the engaging part is engageable with the engaged surface part, and the piston rod of the reciprocating hydraulic damper moves the sliding member. The above-described problem is solved by providing a sliding door closing device that has the same direction as the direction and reduces the moving speed of the sliding member by the coil spring.

  Furthermore, the invention according to claim 3 is the above-described configuration, wherein the reciprocating hydraulic damper is arranged substantially in parallel with the coil spring, or the invention according to claim 4 is arranged on the inner side of the coil spring. The above problem is solved by arranging the piston rod of the hydraulic damper.

  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 direct assembly and incorporation into the sliding door device can be reduced.

  In addition, a reciprocating hydraulic damper composed of a cylinder housing part, a piston rod, and a liquid is used to reduce the moving speed due to the elastic force of the coil spring, and the moving speed of the sliding door is satisfactorily reduced. It is what Furthermore, in order to decelerate the moving speed of the sliding door, a reciprocating hydraulic pressure damper is used, so that a very simple configuration can be obtained and its operation can be ensured.

  According to invention of Claim 2, the said piston rod is the same direction as the moving direction of the said sliding member, and can act the resistance force with respect to a door closing direction movement of this sliding member almost without waste. is there. According to the invention of claim 3, the coil spring and the reciprocating hydraulic damper are arranged in parallel, so that 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 fourth aspect of the present invention, the storage space for the reciprocating hydraulic damper and the coil spring in the casing can be reduced, and the door closing device can be made even more compact.

  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 and a casing A, which are mainly fixed to the upper and lower guide rails of the present invention; It is comprised from the guide traveling body B with which the sliding door 18 side is mounted | worn, the upper and lower guide rail, the 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 (A) and 4 (A), a pivot connecting portion 1c is formed on one end side in the longitudinal direction of the sliding main 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, a sliding member operation piece 1f is formed so as to protrude downward from the guided protrusion piece 1d. Further, the sliding member operation piece 1f is formed with a coil spring connecting portion 1e on which an end portion of a coil spring 3 described later is hooked. 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 described later (see FIG. 4A). 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 projection 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 coil spring 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 reciprocating hydraulic damper 4 is 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 coil spring 3 is larger than the resistance force T generated by the reciprocating hydraulic damper 4, but the difference between the elastic force F and the resistance force T is set appropriately.

Next, the second casing portion A ₂ will be described. FIG. 1 (B) is a view of the inside of the second casing portion A _{2, in} which the sliding member 1, the hook member 2, the coil spring 3, and the reciprocating hydraulic damper 4 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, as shown in FIG. 3B, the auxiliary guide portion 12 is moved and swung 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 for guiding the operation. 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.

The second casing portion A ₂ is formed with a mounting protrusion 13 for mounting on an end portion of a guide rail 17 described later. 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.

Next, as shown in FIG. 2B, the coil spring 3 is formed with connecting portions 3b and 3b on both sides in the longitudinal direction of the elastic portion 3a, and one of the connecting portions 3b is the second casing portion A _2. The other connecting portion 3 b is connected to the coil spring connecting portion 1 e of the sliding member 1. The second casing unit A _2, the elastic portions 3a are telescopically accommodated.

  Next, as shown in FIGS. 2, 4 and the like, the reciprocating hydraulic damper 4 is mainly composed of a cylinder housing portion 4a and a piston rod 4b. The cylinder housing portion 4a is filled with a liquid, and a viscous liquid is particularly preferable. The liquid is specifically 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.

  Further, a return spring is mounted in the cylinder housing portion 4a, and is elastically biased so that the piston rod 4b is constantly protruded from the cylinder housing portion 4a. And even if the piston rod 4b is once pulled into the cylinder housing 4a, it can be immediately returned to the original protruding state via the return spring. In the reciprocating hydraulic damper 4, the piston rod 4b is normally in a protruding state as shown in FIG. 1B, and when the piston rod 4b is pulled into the cylinder housing portion 4a, The liquid filled in the inside, the return spring, or the like becomes a resistance force, and the elastic force F of the coil spring 3 can be attenuated.

As described above, the reciprocating hydraulic pressure 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 damper 4 are arranged in parallel in the casing A. First, a damper storage chamber 9 for storing the reciprocating hydraulic damper 4 is formed in at least one of the first casing A _{1 and} the second casing A ₂ . In the damper storage chamber 9, the reciprocating hydraulic damper 4 is fixed in a non-moving state. 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. It is attached to the casing A so as to be surrounded by.

  The reciprocating hydraulic 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, in the casing A, the coil spring 3 and the reciprocating hydraulic damper 4 are separately arranged. As a result, when deterioration occurs in the coil spring 3 or the reciprocating hydraulic 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 on the partition wall 9 a of the damper storage chamber 9 of the reciprocating hydraulic damper 4.

  The piston rod 4b of the reciprocating hydraulic damper 4 enters the cylinder housing 4a while resisting the elastic force of the coil spring 3. Further, as a second type mounting configuration of the coil spring 3 and the reciprocating hydraulic damper 4, as shown in FIGS. 13A and 13B, a reciprocating hydraulic damper is provided on the inner peripheral side of the coil spring 3. 4 is stored. In this case, the axial rear end 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 portion 4a of the reciprocating hydraulic damper 4 in the inner peripheral portion. As described above, the configuration in which the reciprocating hydraulic 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 damper 4. It can be made compact.

  The reciprocating hydraulic damper 4 serves to reduce the speed in the door closing direction of the sliding member 1 due to the elastic force F of the coil spring 3. In the reciprocating hydraulic damper 4, as shown in FIGS. 1, 2B, 4B, 5B, etc., an elastic force that moves the sliding member 1 to the door closing side. The sliding member 1 and the hook member 2 are moved to the door closing side by the door closing force P generated by generating the resistance force T against F and subtracting the resistance force T from the elastic force F. That is, the guide traveling body B that supports the sliding door 18 moves with a force of FT = P, and the initial speed Vn of the sliding door 18 is locked to the guide traveling body B as shown in FIG. The low speed Vm by the door closing force P from the state in which the portion 15b is engaged with the hook member 2 until the door closing is completed can be achieved.

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 is moved in the door closing direction by the elastic force F of the coil spring 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 coil spring 3, the resistance force T operates in the elastic biasing direction by the elastic force F of the coil spring 3. As a result, a force obtained by subtracting the resistance force T of the reciprocating hydraulic damper 4 from the elastic force F of the coil spring 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. It is forcibly moved to the door closing side, reaches the door closing direction end, and completes the door closing operation (see FIG. 11B, FIG. 14 etc.).

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 coil spring 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 mounted on a door closing side location in a cabinet or the like, and a hook member 2 is rotatably mounted on a sliding member 1 that slides in an appropriate area within a casing A, The moving member 1 is urged to the door closing side via the coil spring 3 and is moved along the upper and lower guide rails 17 by the resistance force T by the reciprocating hydraulic damper 4 that reduces the elastic force F of the coil spring 3. By moving the sliding travel region of the sliding member 1 in the door closing direction from the state in which the guide traveling body B that travels is locked to the hook member 2, a gentle door closing operation of the sliding door 18 can be obtained. In addition, the initial operation of door closing and door opening can be made stable with no play.

  That is, the sliding member 1 and the hook member 2 are pivotally connected so that the hook member 2 can swing freely. The sliding member 1 moves in the casing A in the door closing direction due to the elastic force F of the coil spring 3, but the reciprocating hydraulic damper 4 that reduces the elastic force F is provided. Therefore, the guide traveling body B can be moved in the door closing direction by a force obtained by subtracting the resistance force T of the reciprocating hydraulic pressure damper 4 from the elastic force F of the coil spring 3, which is extremely gentle and stable and extremely good. A door closing operation can be performed. The guide rail 17 is equipped 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 and 15. It is something that can be done.

  Next, in the present invention, by bringing the sliding door 18 close to the door closing side end, the sliding door 18 is forcibly pulled toward the door closing side end, and the speed of the sliding door 18 immediately before the door closing is finished. The vehicle is slowly decelerated and a good door closing operation can be obtained. Furthermore, the door closing device can be made small, and the space for mounting the sliding door device directly on 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 coil spring 3. However, at this time, the resistance force T of the reciprocating hydraulic damper 4 acts on the coil spring 3 so as to reduce the elastic force F, and the sliding member 1 and the hook member 2 for moving the guide traveling body B are within the casing A. It can be moved at an appropriately moderate 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. Further, the guide rail 17 is provided with a door closing device constituent part (door closing tool). When the sliding door 18 is closed and opened, the door closing device constituent part (door closing tool) attached to the guide rail 17 and The guide traveling body B can operate in a balanced manner via the guide member 15, and can be made stable and free of backlash without tilting the sliding door 18 in the initial operation of door closing and door opening.

  In addition, the casing A is installed in a substantially straight line at the longitudinal end of the guide rail 17, so that the entire configuration of the door closing device can be compactly integrated. The casing A is installed on the top plate rear surface side and bottom plate upper surface side of the cabinet and adjacent to the upper and lower guide rails 17 in a parallel state, and the casing A of the door closing device component (door closing tool) is installed on the cabinet side. By mounting on, a relatively strong mounting 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 an enlarged view of a door closing apparatus, (C) is a hook member of a door closing apparatus. It is an enlarged view of the state drawn in in the casing. (A) is an exploded perspective view of a sliding member, a hook member, and a cylinder, and (B) is an enlarged view showing a partial cross section of the hook member portion. (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, a hook member, and a reciprocating hydraulic damper, and (B) is a perspective view of the sliding member, a hook member, and a reciprocating hydraulic damper. (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 enlarged view which shows the mounting structure of the 2nd type of a reciprocating type hydraulic damper, (B) is an enlarged view of the state which the hook member of (A) pulled in in the casing. It is an effect | action figure which shows operation | movement of a sliding door.

Explanation of symbols

A ... casing, B ... guide traveling body 1 ... sliding member, 2 ... hook member, 2c ... engaging portion,
3 ... coil spring, 4 ... reciprocating hydraulic damper, 4a ... cylinder housing,
4b ... piston rod, 7 ... engaged surface portion.

Claims (4)

  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 via a coil spring. The guide traveling body that travels along the guide rail moves from the state in which the guide traveling body is locked to the hook member to the door closing direction, and includes a cylinder housing portion, a piston rod, and a liquid. And a reciprocating hydraulic damper for reducing a moving speed by the elastic force of the coil spring.   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 And a coil spring that elastically urges the sliding member in the door closing direction, a cylinder housing, a piston rod that can reciprocate within the cylinder housing, and the cylinder housing are hermetically filled. A reciprocating hydraulic damper made of a liquid that gives resistance to the piston rod, the sliding member, a hook member, a coil spring, and a reciprocating hydraulic damper are mounted, and the sliding member extends along the horizontal direction. A main guide part to be guided, a casing in which 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 runs along the guide rail are provided and moved. Extend along the direction And a guide member having a locking portion that is locked to the locked piece and is in contact with the pressed piece at the tip of the arm-shaped portion, and the sliding member is a door opening side end. Only the position of the part is swung, the engaging part is freely engageable with the engaged surface part, and the piston rod of the reciprocating hydraulic damper is in the same direction as the moving direction of the sliding member, A sliding door closing device characterized in that a moving speed of a sliding member by a coil spring is reduced.   3. The sliding door closing apparatus according to claim 2, wherein the reciprocating hydraulic damper is disposed substantially in parallel with the coil spring.   3. The sliding door closing device according to claim 2, wherein a piston rod of the reciprocating hydraulic damper is disposed on the inner side of the coil spring.

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