JP2010133221A - Sliding door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding door device capable of braking a door when the door is about to be closed, wherein manual opening operation of the door can be done with a small force. <P>SOLUTION: A roller 8 traveling on a rail 7 attached on an upper frame 2 is provided on the top end of the sliding door 1, and a braking device 12 attached to a position near to a door-tip side vertical frame 4 of the upper frame 2 includes a door drawing means comprising a spring case 14 storing a spiral spring 13 and a rope-like body 15 reeled out from the spring case 14, a damper 16 braking for cushioning the door 1 when the door is about to be closed, and a door retaining member 18 connected with the leading end of a piston rod 16a of the damper 16 and connected with the other end of the rope-like body 15. A retained object member 38 fitted in the door retaining member 18 is provided on the door 1 side. When the door retaining member 18 comes to an end of a guide groove 35 in the inner face of the case 20 of the braking device 12, a state of waiting for the entry of the door retaining member 18 can be maintained. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sliding door device in which a brake is applied when the sliding door is closed (a state immediately before the sliding door is completely closed) or when the sliding door is opened (a state immediately before the sliding door is completely opened).

In this type of conventional sliding door, for example, a device disclosed in Patent Document 1 is known as a sliding door device in which a brake is applied when the sliding door is closed.
What is disclosed in Patent Document 1 is “a case in which an entrance guide groove of an engagement pin provided in a sliding door or a drawer is formed along an opening / closing direction, and the opening / closing direction of the sliding door or the drawer in the case. The slider has a rack gear formed along the sliding direction, and one end is locked to the slider, the other end is locked to the case, and the sliding door or drawer is pulled into the slider. A spring member that applies a biasing force in the direction, a rotary damper that includes a pinion gear that meshes with the rack gear, and an engagement that is swingably provided on the slider and that engages with a slide guide groove formed in the case It has a protrusion and has a relationship of engaging with and disengaging from an engaging pin that has entered the guide guide groove of the case when the sliding door or drawer is opened and closed. The sliding guide groove is formed with a temporary stop portion formed of a bent guide groove continuously from the slide guide groove, and is engaged with the opening operation of the sliding door or the drawer. The operating cam and the slider are moved to the opening side against the biasing force of the spring member via the pin, and the engagement protrusion is guided to the bending guide groove side at the opening side end of the slide guide groove. As a result, the operating cam swings and the engagement pin is disengaged, and the engaging protrusion of the operating cam is engaged with the bent guide groove to be temporarily stopped. As the drawer is closed, the engagement pin swings the operating cam to release the temporary stop state, and the slider receives the braking force from the rotary damper and is biased by the spring member. While moving to lock the door side, the actuating cam sliding door or drawer retraction device was set to pull up to the position tight sliding door or drawer via the engagement pin. "A.

  As is clear from the above configuration, the retracting device disclosed in Patent Document 1 uses a spring member as means for applying a biasing force in the retracting direction to the sliding door.

JP 2006-299578 A

  In the configuration of the retracting device described in Patent Document 1, a spring member is used to apply a biasing force in the retracting direction to the sliding door, and when the sliding door is manually opened, a force is applied in the direction of pulling and extending the spring member. As a result, there is a problem that the sliding door feels very heavy. Further, when the sliding door is manually closed strongly, there is a problem that depending on the force, the sliding door is turned forward, that is, the lower end of the sliding door is lifted.

  An object of the present invention is to solve such a problem, and is a sliding door device in which a brake is applied when the sliding door is closed or opened, and the sliding door is manually opened or closed with a small force. It is an object of the present invention to provide a sliding door device that can be lightly operated and that can prevent the sliding door from being turned forward in the moving direction when the sliding door is manually closed strongly or manually opened strongly.

  In the sliding door device according to claim 1 of the present invention, rollers that run on the rail mounted on the rail attached to the upper frame at the upper end of the sliding door are attached to the right and left two places via the bracket, A braking device is attached to the upper frame near the door-end side frame to apply a brake when the sliding door is closed, and the braking device is housed in the case, and a mainspring spring case that houses a mainspring spring and A sliding door pull-in means consisting of a wire or other cord-like body fed out of the mainspring spring case, a damper for braking and buffering when the sliding door is closed, and a rear end portion of the damper case receiving the shock absorption A compression spring for absorbing shock and a sliding door holder coupled to the tip of the piston rod of the damper and coupled to the other end of the cord-like body And a rod-like held member that fits into the sliding door holding member on the sliding door side, and the sliding door holding member is formed on the inner surface of the case of the braking device while holding the rod-like held member on the sliding door side It is possible to move in the sliding door moving direction along the guide groove, and when the sliding door holding member is located at the end of the guide groove, the sliding door holding member can be moved in and out of the sliding door holding member, and the sliding door holding member It is configured to maintain a state of waiting for the sliding door holding member to enter when positioned at the end of the guide groove.

  In the sliding door device according to claim 2, rollers that run on the rail mounted on the rail attached to the upper frame at the upper end of the sliding door are attached to the left and right locations via the bracket, A brake device is attached to apply a brake when the sliding door is closed at a position close to the door end side of the mainspring spring, and the brake device is housed in the case, and the mainspring spring case for storing the mainspring spring and the mainspring spring case The sliding door retracting means consisting of a wire and other cords that are fed out from the door, the damper for braking and buffering when the sliding door is closed, and the shock for absorbing the shock by receiving the rear end of the damper case A compression spring for absorption and a sliding door holder coupled to the tip of the piston rod of the damper and coupled to the other end of the cord-like body A rod-like held member that fits into the sliding door holding member on the rail or the upper frame side, and the sliding door holding member brakes in a state of holding the rod-like held member on the rail or the upper frame side. It is possible to move in the sliding door movement direction along the guide groove formed on the inner surface of the case of the device, and when the sliding door holding member is located at the end of the guide groove, the rail or the upper frame side held member enters and exits the sliding door holding member The sliding door holding member is configured to be able to maintain a state of waiting for the sliding door holding member to enter when the sliding door holding member is positioned at the end of the guide groove.

  In the sliding door device according to claim 3, rollers that run on the rail mounted on the rail attached to the upper frame at the upper end of the sliding door are attached to the left and right locations via the bracket, and at the upper end of the sliding door. A braking device is embedded in the position close to the door end to apply a brake when the sliding door is closed, and the braking device is housed in the case, and the mainspring spring case for storing the mainspring spring and the mainspring In order to absorb the shock by receiving the sliding door pulling means consisting of a wire or other cord-like body drawn out from the spring case, a damper for braking and buffering when the sliding door is closed, and the rear end of the case of this damper A compression spring for absorbing the shock of the piston, and a pull coupled to the tip of the piston rod of the damper and to the other end of the cord. A holding member that is inserted into the sliding door holding member on the rail or upper frame side, and the sliding door holding member holds the rod-like holding member on the rail or upper frame side. It is possible to move in the sliding door movement direction along the guide groove formed on the inner surface of the case of the braking device, and when the sliding door holding member is located at the end of the guide groove, the rail or the upper frame side held member of the sliding door holding member The sliding door holding member is configured to be able to enter and exit and to maintain a state of waiting for the sliding door holding member to enter when the sliding door holding member is positioned at the end of the guide groove.

  In the sliding door device according to claim 4, the upper end of the sliding door is slidably fitted in a groove formed in the lower surface of the upper frame, and the sliding door closes at a position close to the door tip side at the upper front end of the sliding door. A braking device is attached to apply a brake to the main body, and the braking device is housed in a case, and includes a mainspring spring case that houses a mainspring spring and a cord-like body such as a wire that is fed out of the mainspring spring case. Sliding door retracting means, a damper for braking and buffering when the sliding door is closed, a shock absorbing compression spring for receiving a shock at the rear end of the damper case, and a piston rod for the damper And a sliding door holding member coupled to the other end of the cord-like body, and a rod-shaped holding member fitted into the sliding door holding member on the upper frame side. The sliding door holding member is movable in the sliding door moving direction along the guide groove formed on the case inner surface of the braking device while holding the rod-shaped held member on the upper frame side. When the sliding door holding member is positioned at the end of the guide groove, the sliding door holding member is allowed to enter and exit from the upper frame side when the sliding door holding member is positioned at the end of the guide groove. It is configured so that it can be maintained.

  In the sliding door device according to claim 5, the upper end of the sliding door is slidably fitted in a groove formed on the lower surface of the upper frame, and when the sliding door is closed at a position close to the door end side at the upper end of the sliding door. A brake device is embedded in order to apply a brake, and the brake device is housed in a case, a mainspring spring case that houses a mainspring spring, and a cord-like body such as a wire that is fed out from the mainspring spring case. A sliding door retracting means, a damper for braking and buffering when the sliding door is closed, a shock absorbing compression spring for absorbing the shock by receiving the rear end of the damper case, A sliding door holding member coupled to the tip of the piston rod and the other end of the cord-like body, and a rod-shaped secured member fitted into the sliding door holding member in the groove of the upper frame The sliding door holding member is movable in the sliding door moving direction along a guide groove formed on the inner surface of the case of the braking device while holding the rod-like held member on the upper frame side. Allows the upper frame-side held member to enter and exit the sliding door holding member when positioned at the end of the guide groove and waits for the sliding door holding member to enter when the sliding door holding member is positioned at the end of the guide groove It is characterized in that it can be maintained in such a state.

  As described above, when the sliding door is manually closed, the sliding door device of the present invention enters the sliding door holding member provided in the braking device when the sliding door closes even when the sliding door is strongly closed manually. However, the cord-like body is wound in the mainspring spring case and a force is applied in the direction of closing the sliding door, and the sliding door tries to move in the closing direction, and at the same time, the winding-up force of the cord-like body by the mainspring spring causes the damper piston rod to move. Moving in the direction of being pushed into the case, the sliding door can be closed at a low speed while being braked. The sliding door device of the present invention uses a mainspring spring to move the sliding door in the closing direction from when it is closed, and when starting to open the sliding door, a force to pull out the cord-like body from the mainspring spring case is applied. Compared to the case where such a spring member is used, the sliding door can be moved very lightly. Furthermore, by providing a shock absorbing compression spring for receiving the rear end portion of the damper case and absorbing the shock, even if the sliding door is strongly closed manually, the shock of the held member against the sliding door holding member is reduced. Can be absorbed by the compression spring after the damper and the movement of the piston rod being pushed into the case, and preventing the sliding door from sliding forward (the lower end of the rear end lifts up in the direction of movement) it can.

It is a front view showing the whole sliding door device in the state where the sliding door in the 1st embodiment of the present invention was opened. It is a front view showing the whole sliding door device in the state where the same sliding door was closed. It is a perspective view which shows the state in which the braking device is attached to the position near the door tip of the same frame. It is an expanded sectional front view of a braking device in the state where the sliding door was opened. It is an expanded sectional front view of a braking device in the state where the sliding door was closed. It is a disassembled perspective view of the sliding door holding member provided in the brake device. It is an assembly perspective view of the sliding door holding member provided in the brake device. It is a disassembled perspective view of the brake device. FIG. 3 is an XX arrow view of FIG. 2. It is a front view which shows the whole sliding door apparatus in the state immediately before the sliding door in the 2nd Embodiment of this invention opens to the maximum. It is a front view showing the whole sliding door device in the state where the same sliding door was opened to the maximum. It is a front view which shows the whole sliding door apparatus in the state by which the sliding door in the 3rd Embodiment of this invention was opened. It is a front view showing the whole sliding door device in the state where the same sliding door was closed.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the first embodiment shown in FIGS. 1 to 9 will be described. Reference numeral 1 denotes a sliding door that is manually opened and closed, and at a predetermined indoor position, an upper frame 2, a door-end side frame 3, and a door-side frame An opening 6 serving as an entrance formed by the frame 4 and the lower frame 5 is provided so as to be freely opened and closed.

  Specifically, a rail 7 is attached to the upper frame 2 in the horizontal direction, and rollers 8 that run on the rail 7 and run along the rail 7 are attached to the upper end of the sliding door 1 at two locations on the left and right sides via the bracket 9. It has been. A groove 1a is formed at the lower end of the sliding door 1 over the entire length in the left and right width direction, and a support roller 10 protruding upward from the lower frame 5 is fitted in the groove 1a. As described above, the sliding door 1 is an opening that is an entrance / exit by the fact that the roller 8 is placed on the rail 7 on the upper end side of the sliding door 1 and the support roller 10 is fitted in the groove 1a on the lower end side of the sliding door 1. The part 6 can be freely opened and closed. Reference numeral 11 denotes a finger hook formed at a position closer to the door tip on the front and back surfaces of the sliding door 1.

A braking device 12 is provided to apply a brake when the sliding door 1 is closed at a position close to the door-end side frame 3 of the upper frame 2.
The braking device 12 applies a brake when the sliding door 1 is closed, and a sliding door retracting means including a mainspring spring case 14 that houses the mainspring spring 13, and a cord 15 such as a wire wound around the mainspring spring case 14. A damper 16 for buffering, and an upper end of one side portion are pivotally supported by a tip of a piston rod 16a of the damper 16 via a connecting member 17, and an upper end of the intermediate portion in the width direction is connected to one end of the cord-like body 15. The sliding door holding member 18 and a shock absorbing compression spring 19 provided so that one end thereof is in contact with the rear end portion of the case 16 b of the damper 16 are housed in the case 20.

  Specifically, the sliding door holding member 18 is substantially plate-shaped as a whole and includes a connecting portion 21 having a narrow neck portion 21a for hooking a ring portion 15a at one end of the cord-like body 15 at the upper end in the width direction, A holding leg 22, 23 that extends downward is projected from the two holding legs 22, 23. The holding leg 22 on one side is longer than the holding leg 23 on the other side, and Shaft portions 24 and 25 having a circular cross section are projected in the horizontal direction on the front and rear surfaces in the vicinity of the upper end shoulder portion on the other side portion side. Further, a round hole 26 and a recess 27 for coupling the coupling member 17 are formed adjacent to each other in the axial direction toward the front and rear in the vicinity of the upper end shoulder portion on one side.

  Next, the coupling member 17 includes a damper connecting portion 28 having a hole portion 28a for press-fitting the tip of the piston rod 16a of the damper 16 on one side, and the sliding door holding member 18 is integrated with the damper connecting portion 28. A shaft portion 29 having a circular cross section to be fitted and coupled to the round hole 26 and the concave portion 27 on one side is provided on the other side via a connecting portion 30, and the front and rear end faces of the shaft 29 are the shaft portion. 24 and 25 are formed so as to be aligned with the front and rear end faces. The shaft portion 29 is coupled to the round hole 26 and the concave portion 27. The coupling operation is performed by inserting the shaft portion 29 from the end portion side of the concave portion 27, and connecting both ends of the shaft portion 29 to the round hole 26 and the concave portion 27. What is necessary is just to make it protrude in the horizontal direction before and behind the recessed part 27. FIG. In addition, although the said round hole 26 is exhibiting the shape connected over the perimeter, the recessed part 27 is divided into one so that the said connection part 30 can be avoided, and is inserted in the recessed part 27 The shaft portion 29 is configured so as not to come off from one split portion of the recess 27. Further, shaft portions 31 and 32 having a circular cross section are provided in the horizontal direction so that the end surfaces are aligned with the front and rear end surfaces of the shaft portions 24 and 25 on the front and rear surfaces of the damper connecting portion 28.

  Next, the case 20 will be described. The case 20 is formed by combining a front side case part 33 and a rear side case part 34 with screws at both ends. A mainspring spring case 14 is disposed, and a compression spring 19 and a damper 16 are disposed toward the other end side of the case 20 adjacent to a portion where the mainspring spring case 14 is disposed. Guide grooves 35 and 35 for slidingly guiding the sliding door holding member 18 are formed by fitting the shaft portions 24 and 25 of the sliding door holding member 18 and the shaft portions 29, 31 and 32 of the coupling member 17 on the inner surface of the end side. The guide groove 35 is a horizontal portion 35a except for an end portion located on the other end side of the case 20, and the end portion is a rising portion 35c connected to the horizontal portion 35a via an upward inclined portion 35b. . The other end of the compression spring 19 abuts on a spring receiver 36 formed in the case 20. In addition, on the inner surface of the case portion 34 on the rear side of the case 20, a circular hole 14a in the center of the mainspring spring case 14 and a support shaft 37 having a circular cross section that fits so that the mainspring spring case 14 can rotate are directed forward. The support shaft 37 is formed with a groove 37a from the front end to the rear, and one end of the mainspring spring 13 protruding from the central circular hole 14a of the mainspring spring case 14 is engaged with the groove 37a. It has become. The front end portion of the support shaft 37 is fitted into a round hole 33 a formed in the front case portion 33. Then, in the state where the sliding door retracting means including the mainspring spring case 14 and the cable-like body 15 such as a wire, the damper 16, the compression spring 19, and the sliding door holding member 18 are incorporated in the case 20, the sliding door holding member 18 is the case 20. When it is located at the end of the guide groove 35 on the other end side, the shaft portions 24 and 25 of the sliding door holding member 18 are located at the rising portion 35c, and the sliding door holding member 18 is connected to the cord-like body 15 and the mainspring spring. 13, the shaft portions 24 and 25 of the sliding door holding member 18 are moved upward to fit into the rising portion 35c, the sliding door holding member 18 is tilted, and the holding leg 23 on the other side portion is attached to the case. When the sliding door holding member 18 is located in the horizontal portion 35a of the guide groove 35 on one end side of the case 20, the holding leg 2 of the sliding door holding member 18 is hidden. , 23 will be protruded from the case 20 downward.

  As combined with the braking device 12 described above, the bracket 9 on the door end side of the sliding door 1 is held in a rod shape made of a roller or the like that moves along the lower side of the case 20 of the braking device 12 when the sliding door 1 is opened or closed. The member 38 is attached horizontally in the front-rear direction on the back side of the bracket 9 via the mounting bracket 39, and the held member 38 is inclined at the end of the guide groove 35 on the other end side of the case 20 when the sliding door 1 is closed. The sliding door holding member 18 that is waiting in contact with the holding leg 22 on one side side of the sliding door holding member 18 is applied with a force in the closing direction of the sliding door 1 on the sliding door holding member 18 and the shaft portions 24 and 25 of the sliding door holding member 18. The mainspring spring case 14 with the holding member 38 positioned between the two holding legs 22 and 23 of the sliding door holding member 18 so that the sliding door holding member 18 is horizontally oriented so that the sliding door holding member 18 comes out of the rising portion 35c. Pulling force of the cord-like body 15 which is wound into the sliding door 1 is adapted to act.

  By the way, in the figure, reference numeral 40 denotes a shock absorber made of rubber or the like provided on the upper frame 2 so that the door bottom side end surface of the bracket 9 on the door bottom side of the sliding door 1 abuts when the sliding door 1 is fully opened. When the door-end side end surface of the door-side bracket 9 of the sliding door 1 comes into contact with the buffer body 40, the roller 8 is pressed in the opening direction of the sliding door 1 by contacting the upper portion of the roller 8 attached to the door-side bracket 9. A stopper made of a leaf spring.

  In the sliding door device provided with the braking device 12 as described above, when the sliding door 1 is open, the cord-like body 15 is drawn out from the mainspring spring case 14, and the piston rod 16a is almost fully extended from the case 16b of the damper 16. The sliding door holding member 18 is positioned at the end of the guide groove 35 on the other end side of the case 20 and the shaft portions 24 and 25 of the sliding door holding member 18 are fitted into the rising portion 35c. 18 is tilted and the holding leg 23 on the other side is held in a standby state hidden in the case 20. The sliding door 1 is closed manually. When the sliding door 1 is closed, the held member 38 comes into contact with the holding leg 22 on one side of the sliding door holding member 18 when the sliding door 1 is closed. The sliding door holding member 18 is horizontally oriented so that the shafts 24 and 25 of the sliding door holding member 18 come out of the rising portion 35c when a force in the closing direction is applied to the sliding door holding member 18, and the two holding of the sliding door holding member 18 are held. The legs 22 and 23 face downward, the held member 38 is positioned between the two holding legs 22 and 23, and the shaft portions 24 and 25 are located in the horizontal portion 35 a of the guide groove 35 as well as the shaft portions 29, 31 and 32. The pulling-in force to the sliding door 1 acts by the cord-like body 15 wound around the mainspring spring case 14 in the state of being located at the position. In the state where the member to be held 38 is held between the two holding legs 22 and 23 by the winding force of the cord-like body 15 by the mainspring spring 13, the held member 38 and the sliding member holding member 38 move the horizontal portion 35 a to the door end side wall. Move to the frame 3 side. At that time, the winding force of the cord-like body 15 by the mainspring spring 13 moves in a direction in which the piston rod 16a of the damper 16 is pushed into the case 16b, and the sliding door 1 is moved to the door end side frame 3 while being braked. Closes at low speed until it comes into contact.

  When the sliding door 1 is manually closed strongly, depending on the force, the retained member 38 on the sliding door 1 side strongly hits the holding leg 22 on one side of the sliding door holding member 18 and the sliding door 1 is turned forward, that is, the sliding door. 1 may be in a state where the lower end on the door bottom side is lifted, but the sliding door device of the present embodiment is provided between the rear end portion of the case 16b of the damper 16 and the mainspring spring case 14 as described above. Since the compression spring 19 for absorbing the shock is provided, the piston rod 16a of the damper 16 is pushed into the case 16b by the impact of the held member 38 against the sliding door holding member 18 even if the sliding door 1 is strongly closed manually. It can absorb by the compression spring 19 after the operation and the damper 16, and the sliding door 1 can be prevented from turning forward in the moving direction.

  When the closed sliding door 1 is opened, the sliding door 1 is manually operated. The sliding door holding member 18 and the sliding door holding member 18 are located in the guide groove 35 together with the held member 38 between the two holding legs 22 and 23 of the sliding door holding member 18. It moves toward the door bottom side frame 4 side along the horizontal part 35a. In the meantime, the cord-like body 15 is pulled out from the mainspring spring case 14 and the piston rod 16a of the damper 16 is also almost full length. At that time, the above-mentioned sliding door holding member 18 is placed on the rising portion 35c at the end of the guide groove 35. The shaft portions 24 and 25 are fitted, the sliding door holding member 18 is tilted, and the holding leg 23 on the other side portion is held in the standby state hidden in the case 20, and the sliding door 1 is held by the held member 38. It is opened until it comes out from between the legs 22 and 23 and hits the Tojiri side frame 4. When the sliding door 1 is opened, the extra force applied to the sliding door 1 is a force that pulls the cord-like body 15 out of the mainspring spring case 14 when the sliding door 1 starts to open, and a spring member is used. In comparison, the opening of the sliding door 1 becomes very light.

  Next, the second embodiment shown in FIGS. 10 and 11 will be described. In the first embodiment described above, the sliding door 1 is braked when the sliding door 1 is closed. In the second embodiment, the upper frame 2 is positioned at a position close to the door-end side frame 3 and the door-end side frame 4 so that the brake is applied both when the sliding door 1 is closed and when it is opened, that is, the upper frame 2. The brake devices 12 and 12A are provided on the upper frame 2 symmetrically so as to be distributed left and right as viewed from the front. The disposition state of the braking device 12 at the position near the door-end side frame 3 of the upper frame 2 is the same as that of the first embodiment, and the braking device 12A at the position near the door-end side frame 4 is the door tip. It is disposed facing the side opposite to the braking device 12 at a position close to the side rod frame 3. That is, the braking device 12A at a position close to the door-end side sill frame 4 is directed to the opposite side to the braking device 12 at a position close to the door-end side sill frame 3 in order to brake immediately before the sliding door 1 is completely opened. The braking device 12 </ b> A is attached to the upper frame 2, and the braking device 12 </ b> A also includes a mainspring spring case 14 that houses the mainspring spring 13, and a sliding door retractor that includes a cord-like body 15 such as a wire wound around the mainspring spring case 14. Means, a damper 16 for braking and buffering when the sliding door 1 is opened, and a top end of a piston rod 16a of the damper 16 is pivotally supported via a coupling member 17 at one end of the piston rod 16a. A sliding door holding member 18 whose upper end in the width direction is coupled to the other end of the damper, and an impact absorbing member provided so that one end is in contact with the rear end of the case 16b of the damper 16. And a contraction spring 19 are accommodated in case 20 comprising a pair of casing parts 33 and 34 back and forth.

  As combined with the braking device 12A described above, the bracket 9 on the door bottom side of the sliding door 1 has a roller-like member 38 that moves along the lower side of the case 20 of the braking device 12A when the sliding door 1 is opened and closed. Sliding door holding which is attached horizontally through the mounting bracket 39 and is waiting in a state where the held member 38 is inclined at the end of the guide groove 35 on the other end side of the case 20 when the sliding door 1 is opened. The sliding door comes into contact with the holding leg 22 on one side of the member 18 so that the force in the opening direction of the sliding door 1 is applied to the sliding door holding member 18 and the shaft portions 24 and 25 of the sliding door holding member 18 come out of the rising portion 35c. To the sliding door 1 by the cord-like body 15 wound around the mainspring spring case 14 with the holding member 18 oriented horizontally and the held member 38 positioned between the two holding legs 22 and 23 of the sliding door holding member 18. Drawing force is made to act.

  In addition, the braking device 12A at a position close to the door bottom side frame 4 also includes a shock absorbing compression spring 19 for receiving the rear end portion of the case 16b of the damper 16 and absorbing the shock. Moreover, the buffer 40 and the stopper 41 provided in the first embodiment are not provided in the second embodiment. Other configurations are the same as those of the first embodiment.

  By the way, although the rail 7 is attached to the upper frame 2 in the horizontal direction, when the sliding door 1 is closed by attaching the rail 7 so as to be slightly lowered toward the door end side frame 3 side. , Can be self-closing.

  Furthermore, in the second embodiment, the braking devices 12 and 12A are provided symmetrically on the upper frame 2 at positions close to the door-end side frame 3 and the door-end side frame 4 respectively. You may make it provide the braking device 12A only in the position close | similar to the bottom side collar frame 4. FIG.

  Next, the third embodiment shown in FIGS. 12 and 13 will be described. In the first and second embodiments described above, the sliding door 1 is suspended from the rail 7 at the upper end and the lower end is lowered. Although the opening 6 can be opened and closed in a state where the support roller 10 protruding upward from the frame 5 is fitted and supported in the groove 1a, the upper end of the sliding door 1 is the upper side in the third embodiment. The lower frame 5 has door wheels 42, 42 that are slidably inserted into grooves 2 a formed on the lower surface of the frame 2, and at the lower end of the sliding door 1 at positions close to the door tip and door butt. The sliding door 1 can be freely opened and closed by fitting in the groove 5a. Reference numeral 43 denotes a finger hook portion formed at a position closer to the door tip on the front and back surfaces of the sliding door 1. And in this 3rd Embodiment, the braking device 12 is provided in order to apply a brake when the sliding door 1 closes in the position near the door tip side in the front upper end of the sliding door 1. The braking device 12 is obtained by turning the braking device 12 in the first embodiment upside down, and has the same configuration as the braking device 12 in the first embodiment. The holding legs 22, 23 of the holding member 18 protrude upward from the case 20, and the held member 38 for operating the holding legs 22, 23 is on the lower surface of the upper frame 2 at a position close to the door-end side frame 3. It is attached downward.

  Although not shown in the drawings, even when the braking device 12 at the upper front end of the sliding door 1 is provided as described above, the position close to the door bottom side at the upper front end of the sliding door 1 as in the second embodiment. It is also possible to provide a braking device for applying a brake immediately before the sliding door 1 is fully opened. Also in this case, the member to be held that operates the holding leg of the braking device for applying the brake just before the sliding door 1 is completely opened is attached downward to the lower surface of the upper frame 2 at a position close to the door bottom side frame 4. It is. Moreover, you may make it provide the braking device for applying a brake just before the sliding door 1 opens completely only in the position near the door bottom side of the sliding door 1. FIG.

  Although not shown in the drawings, as in the third embodiment, the upper end of the sliding door 1 is slidably fitted into a groove 2a formed in the lower surface of the upper frame 2, and the sliding door 1 In the sliding door device in which the doors 42 and 42 provided at positions near the door tip and the door bottom at the lower end are fitted in grooves 5a formed in the lower frame 5 so that the sliding door 1 can be freely opened and closed. A braking device may be embedded in the upper end of 1. In this case, the member to be held for operating the holding leg protruding upward from the braking device is located in the groove 2a and attached downward from the upper bottom surface of the groove 2a. In this case, the braking device may be provided at a position close to the door end side of the sliding door 1 and / or a position close to the door bottom side.

  Further, although not shown in the drawings, in the first and second embodiments, even in the sliding door device in which the upper end of the sliding door is suspended from the rail, a braking device is provided at the upper front end of the sliding door 1, or the sliding door A braking device may be embedded in the upper end of 1. In this case, the member to be held for operating the holding leg that protrudes upward from the braking device is provided so as not to interfere with the opening and closing of the sliding door 1 by contacting the bracket 9 from the rail 7 or the upper frame 2. In this case, the braking device may be provided at a position close to the door end side of the sliding door 1 and / or a position close to the door bottom side.

  By the way, as the damper 16 used in the above-described embodiments, an air damper, an oil damper, or the like can be used. Further, the sliding door holding member 18 is not limited to the one shown in the drawing, and any other sliding door holding member can be used as long as the sliding door holding member 38 on the side of the sliding door 1 can stand by at the end of the guide groove 35. It may be a configuration.

  The sliding door device according to the present invention is a sliding door device that applies a brake when the sliding door is closed or opened. The sliding door can be manually opened or closed with a small force, and the sliding door is manually operated. This is a sliding door device that can prevent the sliding door from being turned forward in the moving direction when it is strongly closed by a manual operation or when it is strongly opened manually.

DESCRIPTION OF SYMBOLS 1 Sliding door 1a Groove 2 Upper frame 3 Door tip side eaves frame 4 Door bottom side eave frame 5 Lower frame 6 Opening part 7 Rail 8 Roller 9 Bracket 10 Support roller 12, 12A Braking device 13 Mainspring spring 14 Mainspring spring case 14a Round hole 15 Cord-shaped body 16 Damper 16a Piston rod 16b Case 17 Connecting member 18 Sliding door holding member 19 Compression spring 20 Case 21 Connecting portion 22, 23 Holding leg 24, 25 Shaft portion 28 Damper connecting portion 29 Shaft portion 30 Connecting portion 31, 32 Shaft portion 33, 34 Case part 35 Guide groove 35a Horizontal part 35b Inclined part 35c Rising part 36 Spring receiver 37 Support shaft 38 Holding member 39 Mounting bracket

Claims (5)

At the upper end of the sliding door, rollers that run on the rail attached to the upper frame and run along the rail are attached to the left and right through the bracket, and the sliding door is located at a position close to the door-end side frame of the upper frame. A braking device is attached to apply a brake when the door is closed, and the braking device is housed in the case, and a spring-like body that houses the mainspring spring and a wire-like body such as a wire that is fed out of the mainspring spring case A sliding door retracting means, a damper for braking and buffering when the sliding door is closed, a shock absorbing compression spring for absorbing a shock by receiving the rear end of the case of the damper, and the damper A sliding door holding member coupled to the tip of the piston rod and coupled to the other end of the cord-like body. The sliding door holding member moves in the sliding door moving direction along the guide groove formed on the inner surface of the case of the braking device while holding the sliding door holding member on the sliding door side. The sliding door holding member can be moved in and out of the sliding door holding member when the sliding door holding member is positioned at the end of the guide groove and the sliding door holding member is positioned at the end of the guide groove. A sliding door device configured to maintain a state of waiting for entry of a member. At the upper end of the sliding door, rollers that run on the rail attached to the upper frame and run along the rail are attached to the left and right via brackets, and the sliding door is located at a position close to the door tip side at the upper front end of the sliding door. A brake device is attached to apply a brake when the door is closed, and the brake device is housed in a case, a mainspring spring case that houses a mainspring spring, and a cord-like body such as a wire that is fed out of the mainspring spring case. A sliding door retracting means, a damper for braking and buffering when the sliding door is closed, a shock absorbing compression spring for absorbing the shock by receiving the rear end of the damper case, A sliding door holding member coupled to the tip of the piston rod and coupled to the other end of the cord-like body, The upper frame side is provided with a rod-like held member that fits into the sliding door holding member, and the sliding door holding member is formed on the inner surface of the case of the braking device while holding the rail or the upper frame side rod-like held member. It is possible to move in the sliding door moving direction along the guide groove, and when the sliding door holding member is located at the end of the guide groove, the rail or the upper frame side held member can be put in and out of the sliding door holding member and the sliding door holding A sliding door device configured to maintain a state of waiting for the sliding door holding member to enter when the member is positioned at an end of the guide groove. At the upper end of the sliding door, rollers that run on the rail mounted on the upper frame and run along the rail are attached to the left and right via brackets, and the sliding door closes at a position close to the door end side at the upper end of the sliding door. A brake device is embedded in order to apply a brake when the brake device is installed. The brake device is housed in a case, a mainspring spring case for housing a mainspring spring, and a wire-like shape such as a wire fed out of the mainspring spring case. A sliding door retracting means comprising a body, a damper for braking and buffering when the sliding door is closed, a shock absorbing compression spring for receiving a shock by receiving a rear end portion of the case of the damper, A sliding door holding member coupled to the tip of the piston rod of the damper and coupled to the other end of the cord-like body, and a rail In addition, the upper frame side is provided with a rod-shaped held member that fits into the sliding door holding member, and the sliding door holding member is provided on the inner surface of the case of the braking device while holding the rail or the upper frame side rod-shaped held member. It is possible to move in the sliding door moving direction along the formed guide groove, and when the sliding door holding member is positioned at the end of the guide groove, the rail or the upper frame side held member can be moved in and out of the sliding door holding member. A sliding door device configured to maintain a state of waiting for the sliding door holding member to enter when the sliding door holding member is positioned at an end of the guide groove. The upper end of the sliding door is slidably fitted in a groove formed on the lower surface of the upper frame, and a braking device is attached to apply a brake when the sliding door closes at a position close to the door end on the upper front end of the sliding door. The braking device is housed in a case, and includes a mainspring spring case that houses a mainspring spring and a sliding door retracting means that includes a cord-like body such as a wire that is fed out of the mainspring spring case, and when the sliding door is closed. A damper for braking and buffering, a compression spring for absorbing shock by receiving the rear end of the case of the damper, and a cord-like shape coupled to the tip of the piston rod of the damper A sliding door holding member coupled to the other end of the body, and an upper frame side having a rod-like held member that fits into the sliding door holding member, and the sliding door holding member When it is possible to move in the sliding door movement direction along the guide groove formed on the inner surface of the case of the braking device while holding the rod-shaped held member on the upper frame side, and the sliding door holding member is located at the end of the guide groove The structure is such that the member to be held on the upper frame side with respect to the sliding door holding member can be put in and out and the state in which the sliding door holding member waits for the entrance of the sliding door holding member when the sliding door holding member is positioned at the end of the guide groove is maintained. Characteristic sliding door device. The upper end of the sliding door is slidably fitted in a groove formed on the lower surface of the upper frame, and a braking device is embedded to apply a brake when the sliding door closes at a position close to the door end side at the upper end of the sliding door. The braking device is housed in a case, and a sliding door retracting means comprising a mainspring spring housing a mainspring spring and a cord-like body such as a wire fed out of the mainspring spring case, and closing of the sliding door A damper for braking and buffering at the time, a shock absorbing compression spring for absorbing the shock by receiving the rear end of the case of the damper, and a piston rod of the damper coupled to the tip of the damper A sliding door holding member coupled to the other end of the cord-like body, and a rod-like held member that fits into the sliding door holding member is provided in the groove of the upper frame. The holding member is movable in the sliding door moving direction along the guide groove formed on the inner surface of the case of the braking device while holding the rod-shaped held member on the upper frame side, and the sliding door holding member is positioned at the end of the guide groove. The upper frame side held member can be moved in and out of the sliding door holding member when the sliding door holding member is placed, and the state in which the sliding door holding member enters the standby state can be maintained when the sliding door holding member is located at the end of the guide groove. A sliding door device characterized by that.

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