JP2009203651A - Softly closing mechanism of swing door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a softly closing mechanism of a swing door capable of closing the door softly, slowly, and silently when closing and leaving the door while closed, achieving safety and silence, improving design of the appearance of the door, and opening or closing the door freely at the predetermined angle for opening or closing the door or more. <P>SOLUTION: This softly closing mechanism 4 of the swing door is constituted by installing a guide rail 5 on an upper end face of the door 2, providing a running roller 3c to be inserted into the guide rail 5 in an edge part 6b of a turning connection member 6 having a terminal part 6a supported on a door frame 3 turnably, providing a trigger shaft 6d in the edge part 6b of the turning connection member 6 in addition, and providing a pulling-in mechanism part 7 having a buffering function 8 for pulling the trigger shaft 6d into a door frame 3 side toward the direction F for closing the door 2 at the predetermined angle for opening or closing the door or less to let the trigger shaft 6d leave the pulling-in mechanism part 7 to open or close the door 2 freely when the door 2 is opened at an angle beyond the predetermined angle θ for opening or closing the door. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a soft closing mechanism for reducing the speed when closing a door of a hinged door.

  2. Description of the Related Art Conventionally, there is known a hinged door having a specification in which a door closer that urges the door in the closing direction is attached and automatically closed when the door opening / closing angle is about 80 degrees or less (see, for example, Patent Document 1). However, this type of door with door closer has the problem that the door must be opened against the urging force of the door closer, which increases the operating force of the door, and the mechanical parts that constitute the door closer However, there is a problem that the design is deteriorated by being exposed to the outside, and further, it is difficult to cope with use when the door is opened for the entrance and exit of the pet and the ventilation.

  As another conventional example, a retracting mechanism portion having a buffering function is provided on the door frame of the hinged door, a guide rail is attached to the upper end surface of the door, and the retracting mechanism portion and the guide rail are connected via a rotation connecting member such as a link. Software that automatically closes the door by inserting the traveling roller provided on this rotating connecting member slidably into the guide rail and pulling the traveling roller along the guide rail toward the door closing direction. A closing mechanism is known (see, for example, Patent Document 2).

However, in the conventional example shown in Patent Document 2, the pull-in mechanism part closes the door by pulling the traveling roller from the suspension side end of the guide rail to the door end side end with a spring. Due to the difference between the direction of pulling the roller and the closing direction of the door, the load on the spring is increased. As a result, it is necessary to increase the spring force of the spring, resulting in an increase in the size of the retracting mechanism.
Utility Model Registration No. 2606465 JP 2005-336983 A

  The present invention was invented in view of the above-mentioned conventional problems, and when the door is closed, the door can be softly and gently closed, and the door can have a simple structure and light weight. In addition to improving the safety and quietness of the door when closed, the design of the door can be improved and the door can be used for opening and closing of pets and for ventilation when the door is open and closed at a specified angle. It is an object of the present invention to provide a soft door closing mechanism that can be opened and closed freely, and to provide an open door soft closing mechanism in which the retracting mechanism can be easily downsized.

  In order to solve the above-mentioned problem, the present invention is a soft-close mechanism of a hinged door that reduces the speed when the door 2 is closed, and a guide rail 5 is installed on the upper end surface of the door 2 and the base end portion 6a is a door. A traveling roller 3c to be inserted into the guide rail 5 of the door 2 is provided at the distal end portion 6b of the rotational coupling member 6 rotatably supported by the frame 3, and the distal end portion 6b of the rotational coupling member 6 has the above-described configuration. A pulling mechanism having a trigger shaft 6d separately from the traveling roller 3c and having a buffer function 8 for pulling the trigger shaft 6d toward the closing direction F of the door 2 below the predetermined opening / closing angle of the door 2 on the door frame 3 side. A portion 7 is provided, and when the door 2 is opened more than a predetermined opening / closing angle θ, the trigger shaft 6d is separated from the retracting mechanism portion 7 so as to be freely opened and closed.

  By adopting such a configuration, when the trigger shaft 6d provided separately from the traveling roller 3c at the distal end portion 6b of the rotation connecting member 6 that always connects the door frame 3 and the door 2 closes the door 2 apart. In addition, the door 2 can be gently and quietly closed by being retracted by the retracting mechanism 7 having the buffer function 8 provided on the door frame 3 side. In addition, since most of the mechanical parts of the soft closing mechanism 4 are installed on the door frame 3 side and only the guide rails 5 need be installed on the door 2, the door 2 can be simplified in structure and reduced in weight. The impact prevention and safety at the time of closing can be achieved, and a stable opening / closing performance can be obtained. At the same time, the guide rail 5 is difficult to see from the user, so the appearance of the door 2 is improved. Furthermore, when the door 2 is opened more than the predetermined opening / closing angle θ, the door 2 is switched from the soft closed state to the open / closed free state, so that the door 2 can be used by opening the door 2 for entry / exit of the pet and ventilation. It will be a thing.

  The pull-in mechanism section 7 is rotatably supported by the door frame 3 and includes a rotating arm 21 for converting the reciprocating linear motion of the trigger shaft 6d into a rotational motion. A catch member 20, which is reciprocally movable in the front-rear directions B and C of the door frame 3 and detachably engages with a trigger shaft 6 d provided on the rotary connecting member 6, is connected to 21 b, and the other piece of the rotary arm 21 is connected. An urging means 22 for urging the rotating arm 21 toward the rear rotation position P2 corresponding to the door fully closed position is connected to 21d, and the trigger shaft of the rotation connecting member 6 is below a predetermined opening / closing angle of the door 2. 6 d engages with the catch member 20 and the rotation of the rotation arm 21 urged by the urging means 22 causes the rotation coupling member 6 to be pulled into the door fully closed position via the catch member 20. Like to do In this case, the direction of the pull-in force of the rotating connecting member 6 can be converted from the reciprocating linear motion of the catch member 20 (reciprocating linear motion of the trigger shaft 6d) to the rotating motion of the rotating arm 21, and the rotating arm The urging means 22 for urging 21 is not burdened, it is not necessary to enlarge the urging means 22, and it is easy to reduce the size of the retracting mechanism section 7.

  The soft close mechanism according to the present invention slowly and quietly closes the door when the door is closed by pulling the trigger shaft provided at the tip of the rotating connecting member that always connects the door and the door frame. The door can be soft-closed, and the guide rail provided on the door is difficult to see from the outside. As a result, it is possible to secure the safety and quietness when closing the door while improving the appearance design of the door. In addition, since the door can be opened and closed freely above a predetermined opening / closing angle of the door, it can be used even when the door is opened for the entry / exit of the pet and the ventilation.

  Further, the present invention can convert the direction of the retraction force of the rotation connecting member from the reciprocating linear motion of the catch member (reciprocal linear motion of the trigger shaft) to the rotational motion of the revolving arm. Can be planned.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  FIG. 1 is a plan view showing a soft close mechanism 4 for explaining an embodiment of the present invention.

  The soft closing mechanism 4 of the present invention reduces the speed when the door 2 is closed, and the main body is composed of a guide rail 5, a rotation connecting member 6, and a retracting mechanism portion 7 having a buffer function 8. ing.

  A guide rail 5 is installed on the upper end surface of the door 2. The guide rail 5 is formed in a U-shaped cross section that opens upward, and has a groove 9 that is recessed from the door bottom side end 5a of the upper end surface of the door 2 to the center side (see FIG. 6) Buried inside.

  The door 2 and the door frame 3 are always connected via a rotation connecting member 6. The rotary connecting member 6 has a quadrangular shape in plan view, and the base end portion 6a of the rotary connecting member 6 is located near the door bottom side (hinge 30 side) of the lower surface of the upper frame portion of the door frame 3. A central portion is rotatably supported via a rotation shaft 6e. A traveling roller 6c protrudes from the lower surface of the distal end portion 6b of the rotating connecting member 6 near the front C, and the traveling roller 6c is inserted into the guide rail 5 of the door 2 so as to be able to reciprocate. The rotation connecting member 6 rotates in the front-rear directions B and C of the door frame 3 around the rotation shaft 6e as the door 2 is opened and closed. At this time, the traveling roller 6c is connected to the guide rail 5 The door can be reciprocated between the door end side end portion 5a corresponding to the door fully open position and the door end side end portion 5b corresponding to the door fully closed position. Further, a trigger shaft 6d that is detachably fitted to a catch surface 20a of a catch member 20 to be described later protrudes from the lower surface near the rear B of the distal end portion 6b of the rotation connecting member 6.

  On the other hand, a retracting mechanism portion 7 having a buffer function 8 is installed on the door frame 3 side. In this example, the retracting mechanism portion 7 is installed near the door bottom side (hinge 30 side) of the lower surface of the upper frame portion of the door frame 3 (hereinafter referred to as the door frame surface 3a). The retracting mechanism 7 is for retracting the door 2 in the closing direction F, and includes a guide plate 15, a catch member 20, a V-shaped rotating arm 21, a spring 22 a that is a biasing means 22, and a buffer function. 8 dampers 23 and the like.

  The guide plate 15 is attached to the center portion side of the door frame surface 3a, and as shown in FIGS. 1 and 2, the first guide groove 16 and the second guide toward the front and rear directions B and C of the door frame 3. The grooves 18 are formed in parallel with each other. The front end portion of the first guide groove 16 protrudes forward C from the front end portion of the second guide groove 18, and the protruding portion is a lock groove 17 bent in an L shape.

  A catch member 20 is slidably guided along the first guide groove 16 of the guide plate 15. A catch surface 20a that is opened in a U-shape is formed at the tip of the catch member 20, and a trigger shaft 6d that protrudes from the tip portion 6b side of the rotary connecting member 6 can be attached to and detached from the catch surface 20a. Is done. A pair of front and rear guide shafts 20b, 20c are slidably provided along the first guide groove 16 of the guide plate 15 on the center side of the catch member 20, and only the front guide shaft 20b is the lock groove. 17 is allowed to enter. Further, a connecting shaft 20 d protrudes from the rear end side of the catch member 20, and this connecting shaft 20 d passes through the second guide groove 18 of the guide plate 15 and is connected to a piece 21 b of the rotating arm 21.

  The rotating arm 21 is bent in a V shape, and a bent portion 21 a is rotatably supported on the door frame surface 3 a on one side of the guide plate 15. Here, “one side of the guide plate 15” refers to the direction of the hinge 30 side of the door frame 3 when viewed from the guide plate 15. In this example, a long hole 21c is formed in one piece 21b of the rotating arm 21, and the connecting shaft 20d of the catch member 20 is slidably fitted in the long hole 21c. The reciprocating linear motion (the reciprocating linear motion of the trigger shaft 6 d) is converted into the rotational motion of the rotating arm 21.

  The rotating arm 21 is always urged toward the rear B by the spring 22a as the urging means 22 with the bent portion 21a as a fulcrum. In this example, as shown in FIG. 2, one end 22 b of the spring 22 a is connected to the other piece 21 d of the rotating arm 21, and the other end 22 c of the spring 22 a is provided on the door frame surface 3 a on one side of the guide plate 15. The other part 21d of the rotating arm 21 is always urged in the direction of pulling. That is, the rotating arm 21 is always urged from the front rotation position P2 (FIGS. 1 and 2) corresponding to the door fully open position toward the rear rotation position P1 (FIGS. 3 and 4) corresponding to the door fully closed position. ing.

  Further, a damper 23 which is a buffer function 8 for reducing the pull-in speed of the catch member 20 is connected to the other piece 21d of the rotating arm 21. As shown in FIG. 2, the cylinder portion 23 b of the damper 23 is fixed to a shaft portion 23 c provided on the door frame surface 3 a on one side of the guide plate 15 so as to freely swing, and from the cylinder portion 23 b of the damper 23. The protruding piston rod 23a is pivotally attached to the other piece 21d of the rotating arm 21, and constantly urges the other piece 21d of the rotating arm 21 in a direction opposite to the urging direction of the spring 22a. . In the cylinder portion 23b of the damper 23, a fluid (not shown) that generates a resistance force to the movement of the piston rod 23a and a spring (not shown) that constantly biases the piston rod 23a in the protruding direction. The force of the spring is set to be smaller than the urging force of the spring 22a, so that resistance is given to the pulling operation of the catch member 20.

  Next, the opening / closing operation | movement of the door 2 is demonstrated.

  As shown in FIGS. 5 and 6, when the door 2 is opened more than a predetermined opening / closing angle (for example, about 10 degrees), the trigger shaft 6 d of the rotation connecting member 6 is detached from the retracting mechanism portion 7. On the other hand, the front guide shaft 20b of the catch member 20 enters the lock groove 17 of the guide plate 15 (the state shown in FIGS. 7 and 8), so that the catch member 20 moves forward against the biasing force of the spring 22a. C Locked at the slide position. Further, in this locked state, the catch surface 20 a of the catch member 20 is held in a forward posture that can receive the trigger shaft 6 d of the rotation connecting member 6.

  When the opened door 2 is closed, as shown in FIGS. 9 and 10, the rotation connecting member 6 rotates about the rotation shaft 6 e, and the traveling roller 6 c is moved from the door edge side end portion 5 a of the guide rail 5. It moves toward the door end side end 5b. When the door 2 is closed to a predetermined opening / closing angle (about 10 degrees), as shown in FIG. 1, the trigger shaft 6 d of the rotation connecting member 6 collides with the catch surface 20 a of the catch member 20, thereby the catch member 20. When the front guide shaft 20b of the first guide groove 16 is moved from the lock groove 17 to the first guide groove 16, the catch member 20 is unlocked and the catch member 20 is rotated simultaneously with the trigger shaft 6d of the rotary connecting member 6. The catch member 20 is engaged with each other, and in this engaged state, as shown in FIGS. 3 and 4, the V-shaped rotation arm 21 pulled by the spring 22 a is The catch member 20 is integrated with the first guide groove 16 and pulled back B (state of FIG. 3). In addition, when the piston rod 23a of the damper 23 is contracted at the time of the retraction, the retraction speed of the rotary connecting member 6 and the catch member 20 is braked, and the door 2 is closed slowly and quietly (the state shown in FIGS. 10 and 11). ). That is, the specification is such that the door 2 is automatically soft-closed even when the door 2 is quickly closed by hand.

  On the other hand, when the closed door 2 is opened, the traveling roller 6c of the rotation connecting member 6 is changed from the door end side end portion 5b of the guide rail 5 of the door 2 to the door end side end portion 5a as shown in FIG. The catch member 20 is pulled toward the front C along the first guide groove 16 while moving toward the front. When the door 2 is further opened, the front guide shaft 20b of the catch member 20 is locked by being engaged with the lock groove 17 from the first guide groove 16, and the trigger shaft 6d of the rotation connecting member 6 is caught by the catch surface 20a. By leaving the door, the door 2 enters a state where the door 2 is not opened / closed and is free of opening / closing, that is, a state of waiting for a soft closing of the next closing operation.

  Thus, according to the above configuration, the retracting mechanism portion having the buffer function 8 provided in the door frame 3 by the trigger shaft 6d provided separately from the traveling roller 6c at the distal end portion 6b of the rotation connecting member 6 when the door 2 is opened and closed. By pulling in by 7, the door 2 can be closed gently and quietly. In addition, since most of the mechanical parts of the soft-close mechanism 4 are installed on the door frame 3 side, and only the guide rail 5 needs to be installed on the door 2, the door 2 can be simplified in structure and reduced in weight. In addition, it is possible to prevent impact when closing and to ensure safety, and at the same time, it is difficult for the user to see the guide rail 5, so that the appearance of the door 2 can be improved. As a result, while improving the appearance design of the door 2, in addition to the ease of operation by reducing the weight of the door 2, safety and silence can be ensured. Further, when the door 2 is opened to some extent, it can be opened and closed, so that it can be used even when the door 2 is opened for the entry and exit of the pet and the ventilation.

  In addition, by converting the linear motion in the front-rear direction B, C of the trigger shaft 6 d provided separately from the traveling roller 6 c (reciprocating linear motion of the catch member 20) into rotational motion by the V-shaped rotary arm 21, Compared to the example (Patent Document 2), the spring 22a for urging the rotating arm 21 is not burdened, and it is not necessary to increase the spring force of the spring 22a, and the retracting mechanism unit 7 can be downsized. There is also an advantage that can be.

  The soft closing mechanism 4 of the present invention is not limited to the hinged doors that can be freely opened and closed at entrances and exits of buildings such as apartments and detached houses, and can be widely implemented in the field of hinged doors of system kitchens, for example.

It is a top view explaining the soft closing mechanism of one Embodiment of this invention. It is a perspective view of the drawing-in mechanism part of the state which opened the door same as the above. It is a top view of the soft close mechanism of the state which closed the door same as the above. It is a perspective view of the drawing-in mechanism part of the state which closed the door same as the above. It is the perspective view which looked at the state which opened the door same as the above from the back. It is the perspective view which looked at the state which opened the door same as the above from the front. It is the partially broken top view explaining the state of the drawing-in mechanism part when a door same as the above is fully opened. It is a top view when the door same as the above is fully opened. It is the perspective view which looked at the state which opened the door same as the above from the back. It is the perspective view which looked at the state which opened the door same as the above half from the front. It is the perspective view which looked at the fully closed state of the door same as the above from the back. It is the perspective view which looked at the fully closed state of the door same as the above from the front.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening door 2 Door 3 Door frame 4 Soft closing mechanism 5 Guide rail 6 Rotating connection member 6a Base end part 6b Front end part 6c Traveling roller 6d Trigger shaft 7 Retraction mechanism part 8 Buffering function 20 Catch member 21 Rotating arm 21b One piece 21d Other Fragment 22 Energizing means A Door length direction B Front C Rear F Door closing direction P2 Front rotation position P1 Back rotation position

Claims (2)

  A soft-close mechanism for a hinged door that reduces the speed when the door is closed, with a guide rail installed on the upper end surface of the door, and a distal end of a rotating connecting member whose base end is rotatably supported by the door frame A travel roller to be inserted into the guide rail of the door is provided at a part, and a trigger shaft is provided at the tip of the rotation connecting member separately from the travel roller, and the trigger is provided on the door frame side at a predetermined opening / closing angle of the door or less. A retracting mechanism having a buffer function for retracting the shaft in the closing direction of the door is provided, and when the door is opened more than a predetermined opening / closing angle, the trigger shaft is detached from the retracting mechanism so that the opening / closing is free. A soft-close mechanism for hinged doors. The retracting mechanism is rotatably supported by the door frame and includes a rotating arm for converting the reciprocating linear motion of the trigger shaft into a rotational motion. A catch member that is reciprocally movable and detachably engages with a trigger shaft provided on the rotation connecting member is connected, and the rotation arm is connected to the other piece of the rotation arm at the rear rotation position corresponding to the door fully closed position. The urging means for urging toward the urging means is connected, and the trigger shaft of the rotation connecting member engages with the catch member and is urged by the urging means below the predetermined opening / closing angle of the door. 2. The soft-close mechanism for a hinged door according to claim 1, wherein the rotation connecting member is pulled into the door fully closed position through the catch member by rotation.

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