JP2006265914A - Door closure control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door closure control device which controls a door so as to quickly and smoothly carry out closing operation, and exhibits a good appearance. <P>SOLUTION: The door closure control device is formed of a hinge which mounts the door in an opening frame in a rotatably openable manner, a closer means operable when the door is opened away from the opening frame, for applying a force to the door in a door closing direction, and a damper means for generating a resistance to closing rotational operation applied to the door by the closer means. The damper means has a main body embedded in a door hanging-side end, and a rotary blade rotating about a vertical center shaft. Herein the rotary blade is engaged with the opening frame only when it is located in an area immediately before fitting of the door in the opening frame, out of the entire area in which the door carries out the closing rotational operation, to thereby restrain the closing rotational operation of the door. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a door closing control device capable of suitably controlling a closing operation of a door attached to an entrance / exit, a partition opening or the like.

  In order to prevent the door attached to the opening from being left open, a door closing device c that automatically closes the opened door b is attached between the upper frame a and the door b of the opening frame. . For example, as shown in FIG. 8, the door closing device c has a horizontally long box-shaped drive part d attached to the upper end part of the door b, and a biasing shaft e protruding above the drive part d. The door-side arm f is fixed, and the front-end portion of the door-side arm f and a frame-side arm h each having both ends pivotally attached to a bracket g provided on the upper frame a (for example, , See Patent Document 1).

  In the door closing device c configured as described above, when the door b is opened from the opening frame, a spring incorporated in the drive unit d acts to apply a rotational torque to the urging shaft e. The door-side arm f is rotated by this force, and the door b is closed by the linkage with the frame-side arm h. However, in this kind of door closing device c, the drive part d is exposed at the upper part of the door b and the door side arm f and the frame side arm h protrude from the upper part of the opening part, so that the appearance of the machine part is exposed. It becomes very annoying and looks bad. In particular, a luxury door with improved design has a problem that the decorativeness is remarkably lowered.

  In order to solve this type of problem, a spring hinge has been proposed that generates a torque for closing the opened door b by incorporating a spring (see, for example, Patent Document 2). This spring hinge rotates the door b in the closing direction by the twisting energy stored in the spring when the door b is opened from the opening frame. Therefore, when the door returns to the closed position in the opening frame, it is urged by the energy of the spring to increase the rotation speed and collide with the door. Sound is generated and the indoor environment is damaged, and there is a danger such as finger clogging.

  Therefore, by supporting any one of the upper and lower sides of the suspension base of the door b with the spring hinge and supporting the other with a damper hinge incorporating an oil damper mechanism, the rotational energy due to the spring hinge is reduced, As a result, it has been proposed to suppress an impact when the door b is closed (see, for example, Patent Document 3).

JP 2003-184417 A Japanese Patent Laid-Open No. 2004-300693 Japanese Patent Publication No. 7-18291

  However, the damper hinge suppresses the closing operation of the door b by resisting the spring force of the spring hinge in the entire range of the closing rotation operation from the opened state of the door b to the closing position in the opening frame. It is. Therefore, particularly in the start region where the opened door b starts the closing and turning operation, both forces compete and turn at an extremely slow speed, so that a considerable time is required for the closing operation. In addition, the damper hinge is operated by applying a load against the spring force of the spring hinge in the entire region of the closing and pivoting operation, so there is a lot of mechanical loss, causing mechanical troubles and frequent maintenance such as torque adjustment. Required.

  The present invention is based on the provision of damper means for suppressing the closing and turning operation only in the region immediately before closing in the opening frame in the entire region of the closing and turning operation of the door, and the door is quickly and smoothly closed. An object of the present invention is to provide a door closing control device that can operate and has an excellent appearance.

  In order to achieve the above object, the invention according to claim 1 includes a hinge for attaching the door to the opening frame so that the door can be opened and closed, and a closer for applying a closing force to the door when the door is opened from the opening frame. And a damper means for generating resistance against the closing and turning operation applied to the door by the closer means. The damper means includes a body portion embedded in a door suspension, and a body portion extending from the body portion. A rotating blade that rotates about a vertical central axis, and the rotating blade engages with the opening frame only in the region immediately before closing in the opening frame in the entire region of the door closing rotation operation. Thus, the closing rotation operation is suppressed.

  In the invention according to claim 2, the damper means is formed by using a damper hinge that couples a pair of hinge pieces so as to be pivotable to open and close around the central axis and generates a resistance force against the closing and pivoting operation. In addition, the damper hinge is inserted into a recess formed at the base of the door, and the rotating wing is formed by one hinge piece protruding rotatably from the recess, and the invention according to claim 3 The rotating blade has a supporting rod extending at right angles to the rotating blade and toward the opening frame, and the tip of the supporting rod is opened in the region immediately before closing in the opening frame. By contacting the frame, the rotating blade is engaged with the opening frame.

  According to the first aspect of the present invention, since the damper means is restrained only in the region immediately before the door is closed in the opening frame of the closing and turning operation of the door, the closing operation can be performed quickly and smoothly as a whole. It can be used very functionally because it can surely mitigate the impact when it collides. In addition, the main body portion is embedded in the door suspension, so that the appearance is excellent, and even when a high-end door is installed, the high-class feeling is not impaired.

  The damper means of the invention according to claim 2 is configured by diverting a conventionally used damper hinge, so that it is not necessary to design and produce the apparatus separately, and can be configured at low cost, and also easy to maintain. Parts can be procured and maintenance work becomes easy. Moreover, in the invention which concerns on Claim 3, since the rotational force of a rotary blade is propagated to an opening frame via a support rod, the closing rotation operation of the door immediately before closing in an opening frame can be suppressed reliably.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the door closing control device 1 includes a hinge 4 that attaches the door 2 to the opening frame 3 so as to be able to open and close, a closer means 5 that closes the door 2, and a damper means that buffers the closing operation. 6 is provided.

  The opening frame 3 is generally rectangular and includes an upper frame, left and right side frames, and a lower frame. And this opening frame 3 is attached to a frame shape along the peripheral part of the opening formed in the outer wall of a building, and a partition wall, in order to form the entrance, the entrance, the entrance to a living room, etc. In the barrier-free specification, a horizontal U-shaped opening frame 3 that does not include a lower frame is used. Moreover, the opening frame 3 can also be formed by the edge part of the wall which faces opening, without attaching a separate independent frame part body.

  The door 2 is attached to the opening frame 3 so as to be rotatable and can be opened and closed, and generally has a rectangular plate shape substantially the same size as the opening frame 3. The door 2 of this embodiment is formed by a flash panel in which a decorative plate is attached to both sides of a wooden panel frame formed by extending a reinforcing bar on the inside of an outer peripheral frame in which a vertical frame material and a horizontal frame material are framed in a rectangular shape. Is done. And this decorative board is a veneer obtained by slicing oak, cherry, teak, zelkova, etc. to about 0.2 to 0.6 mm on a substrate such as plywood, or an olefin type such as polyethylene, polypropylene, ethylene vinyl acetate resin (EVA), etc. A material to which a decorative sheet using resin, melamine resin, polyester resin or the like is attached is used. In addition to the flash panel, it is also possible to have a braided structure in which solid wood and modified wood are processed into a frame shape and assembled. Furthermore, it can be formed by bending a steel plate or by assembling an extrusion molding material of plastic or aluminum.

  The door 2 is attached to the opening frame 3 using a hinge 4. In this embodiment, as shown in FIG. 1, the upper part of the suspension is supported by using a normal hinge 4F in which a pair of hinge pieces 10 and 10 that freely rotate freely around the central axis 8 are formed. As shown in FIG. 4, the lower part of the suspension base is supported by a spring hinge 4 </ b> S that incorporates a coil spring 21 and urges the door 2 in the closing direction by the elastic force of the coil spring 21. That is, in this embodiment, two upper and lower portions of the door 2 suspending source are supported so as to be capable of rotating and opening via the hinge 4 composed of the normal hinge 4F and the spring hinge 4S.

  The spring hinge 4S is formed integrally with the upper and lower cylinders 22U and 22D that can be rotated independently around the central axis 8, and the upper and lower cylinders 22U and 22D, respectively. The hinge piece 10U, 10D and the upper cylindrical body 22U are slidably arranged in the upper cylindrical body 22U, and the engaging piece 41 engages with the vertical slit 47 of the upper cylindrical body 22U, whereby the upper cylindrical body 22U. A slide cam shaft 23 that rotates together with it, a fixed cam shaft 24 fixed in the lower cylindrical body 22D, and a coil spring 21 that is arranged in the upper cylindrical body 22U and urges the slide cam shaft 23 downward. The thing comprised including these is illustrated. On the lower end of the slide cam shaft 23 and the upper end of the fixed cam shaft 24 facing the slide cam shaft 23, inclined cam surfaces 23F and 24F which are mirror-finished and come into surface contact with each other are formed.

  When the spring hinge 4S configured as described above is opened from the opening frame 3 by rotating the door 2, the slide cam shaft 23 that rotates together with the upper cylindrical body 22U has an inclined cam surface as shown in FIG. It rises against the spring force of the coil spring 21 by the action of 23F and 24F. When the hand is released in this open state, the spring force of the coil spring 21 and the action of the inclined cam surfaces 23F and 24F generate a force for the slide cam shaft 23 to return to the lower original position while rotating. The door 2 returns to the closing position in the opening frame 3 and the opening is closed. Thus, the spring hinge 4S forms the closer means 5 that urges the door 2 opened from the opening frame 3 in the closing direction. In addition, the closer means 5 can also be comprised using a well-known door check other than the said spring hinge 4S.

  The damper means 6 prevents resistance from colliding with the opening frame by giving resistance to the closing and turning operation of the door 2 caused by the closer means 5. In this embodiment, the damper hinge 11 is used. Configured. As shown in FIG. 3, the damper hinge 11 is integrally formed with upper and lower cylindrical bodies 26U and 26D that are rotatably connected around a vertical central axis 8, and the upper and lower cylindrical bodies 26U and 26D. The upper and lower hinge pieces 10U and 10D are formed. The upper cylindrical body 26U is non-rotatably attached to the central axis 8 via the key 32, and the lower cylindrical body 26D is rotated relative to the central axis 8 via the bearing seat 33. Since the ball bearing 27 is sandwiched between the upper and lower cylindrical bodies 26U and 26D, the upper and lower cylindrical bodies 26U and 26D can smoothly rotate.

  Further, the lower cylindrical body 26D is provided with a hydraulic damper mechanism 28 therein. The hydraulic damper mechanism 28 includes a bottomed cylindrical piston 30 having a return hole 29 at the center of the bottom surface, and a tapered portion 38 whose upper portion is screwed into the center of the central shaft 8 and gradually expands downward toward the lower portion. And the tapered portion 38 includes a vertical round bar-like adjusting shaft 31 inserted into the return hole 29.

  The piston 30 can be moved up and down on the central shaft 8 and is non-rotatably fitted through a key 34, and is screwed into the inner peripheral surface of the lower cylindrical body 26D to thereby be fitted into the cylindrical body 26D. It is configured to move up and down in the cylindrical body 26D in conjunction with the rotation. In addition, a vertical feed hole 35 is formed on the bottom surface of the piston 30 along with the return hole 29. The feed hole 35 has a diameter-expanded portion 36 below, and the diameter-expanded portion 36 has A spherical check valve 37 is accommodated. A lower oil chamber 39 is formed below the piston 30 in the lower cylindrical body 26D, and an upper oil chamber 40 is formed 40A above the piston 30 and inside the piston 40B. The The upper part 40A of the piston 30 and the inner side 40B of the piston communicate with each other through a path not shown.

  The damper hinge 11 configured as described above is normally attached to the door 2 in a pair with the spring hinge 4S in the vertical direction. When the door 2 is opened against the elasticity of the spring hinge 4S, the damper hinge 11 interlocked with the door hinge 2U rotates relative to the upper and lower cylindrical bodies 26U and 26D, so that the piston 30 has a lower cylindrical shape. Ascends in the body 26D. At this time, the oil in the upper oil chamber 40 moves down into the lower oil chamber 39 by depressing the check valve 37, and the upper and lower hinge pieces 10U, 10D are opened as shown in FIG. To. On the contrary, when the door is closed by the biasing of the spring hinge 4S, the pressure of the oil in the lower oil chamber 39 is increased by the lowering of the piston 30, but the check valve 37 closes the feed hole 35, so Return to the upper oil chamber 40 is prevented. Accordingly, the oil whose pressure is increased returns to the upper oil chamber 40 through the narrow gap left around the adjustment shaft 31 of the return hole 29, but the flow resistance acts so that the lowering operation of the piston 30 is suppressed. In this way, the damper hinge 11 provides resistance to the door closing and turning operation, and suppresses the acceleration of the door biased by the spring hinge 4S.

  The clearance between the tapered portion 38 of the adjusting shaft 31 and the return hole 29 gradually decreases as the piston 30 descends, and increases the resistance in proportion to the return of the door. Can be suppressed. The magnitude of the resistance load can be adjusted by rotating the adjustment shaft 31 screwed to the central shaft 8 to move it up and down.

  In the present invention, the damper hinge 11 is inserted into a recess 12 formed on the upper end surface of the door 2 as shown in FIG. The recess 12 includes a round hole 12A for inserting the upper and lower cylindrical bodies 26U, 26D, a vertical slit 12B extending from the round hole 12A and inserting the lower hinge piece 10D, and one side of the upper part of the round hole 12A. And a cutout portion 12D cut out in a fan shape. As shown in FIG. 1, the damper hinge 11 inserted into the recess 12 can be freely rotated within the range of the opening angle of the notch 12D, with the hinge piece 10U thereon protruding from the recess 12 as shown in FIG. . Thus, in the damper hinge 11 of this embodiment, the main body portion 7 of the damper means 6 is formed by the upper and lower cylindrical bodies 26U, 26D and the lower hinge piece 10D embedded in the recess 12, and the upper hinge piece. The rotor blade 9 is formed by 10U.

  Further, as shown in FIGS. 2 and 5, the upper hinge piece 10 </ b> U is provided with a support rod 13 that is perpendicular to the upper hinge piece 10 </ b> U and extends toward the opening frame 3. The support rod 13 is fixed by a screw 43 inserted through the upper hinge piece 10U.

  The support rod 13 has a roller 42 pivotally supported at its tip, and when the door 2 is closed, the upper hinge piece 10U is engaged with the opening frame 3 via the roller 42 as shown in FIG. . On the opposite side of the upper hinge piece 10U, a small spring 45 is provided which is fixed by a screw 43 to which the support rod 13 is fixed and extends toward the oblique side surface 44 of the notch 12D.

  As shown in FIGS. 1 and 5, when the door 2 is opened from the opening frame 3, the tip of the support rod 13 of the damper hinge 11 is separated from the opening frame 3. 10U is urged and rotated toward the suspension side, the tip of the support rod 13 protrudes outside the side surface of the suspension source of the door 2, and the piston 30 rises in the lower cylindrical body 26D. To do. Then, when the hand is released, the door 2 is urged by the spring hinge 4S to rotate toward the inside of the opening frame 3. As shown in FIG. 6, when the door 2 rotates until just before closing in the opening frame 3, the roller 42 at the tip of the support rod 13 contacts the opening frame 3, so that the hinge piece 10 </ b> U on the damper hinge 11 is supported by the support rod 13. 13 is engaged with the opening frame 3 via 13, and further closing and turning operations are suppressed. That is, in the rotation area immediately before closing from the contact position shown in FIG. 6 to the position where the door 2 shown in FIG. 7 is closed in the opening frame 3, the spring force of the spring hinge 4S is the damper hinge. 11, the closing and turning operation of the door 2 is decelerated, and as a result, the impact when colliding with the opening frame 3 is reduced. Moreover, since the rotational speed is reduced only in the region where the door 2 is close to the opening frame 3, closing as a whole operates quickly.

  Further, the main body part other than the upper hinge piece 10U and the support rod 13 is embedded in the concave portion 12 of the hanging part of the door 2 so that the device part is not exposed and the appearance is good. Will not be damaged. Furthermore, in this embodiment, since the damper hinge 11 that has been used and is generally distributed is adopted, the apparatus can be used at low cost without separately designing and manufacturing the apparatus, and repair parts can be easily obtained for maintenance. Becomes easy.

  Furthermore, since the upper hinge piece 10U of the present embodiment is engaged with the opening frame 3 via the support rod 13, the rotation operation of the door 2 immediately before closing in the opening frame 3 can be reliably supported and suppressed. The small spring 45 is preferable in that a hemispherical cap 46 is attached to the tip of the small spring 45, so that the tip of the small spring 45 can operate smoothly without being caught by the oblique side surface 44 of the notch 12D.

  The above description is an example of the embodiment of the present invention. Therefore, the technical scope of the present invention is not limited to this, and various modifications are included in addition to the above-described embodiment.

It is a perspective view which illustrates one embodiment of the present invention. It is the principal part disassembled perspective view. It is a longitudinal cross-sectional view of a damper hinge. It is a longitudinal cross-sectional view of a spring hinge. It is a principal part top view which shows the state which the door opened from the opening frame. It is a principal part top view explaining the process of the closing operation | movement of a door. It is a principal part top view which shows the closed state of a door. It is a perspective view which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door closing control apparatus 2 Door 3 Opening frame 4 Hinge 5 Closer means 6 Damper means 7 Main body part 8 Center axis 9 Rotor blade 10 Hinge piece 11 Damper hinge 12 Recess 13 Support rod

Claims (3)

A hinge that attaches the door to the opening frame so that the door can be pivoted open / closed, a closer means that applies a force in the closing direction to the door when the door is opened from the opening frame, and a closing rotation operation that is applied to the door by the closer means. A damper means for generating resistance against the
The damper means has a main body portion embedded in a suspension base of the door, and a rotating blade extending from the main body portion and rotating around a vertical central axis. A door closing control device that engages with the opening frame only in an area immediately before closing within the opening frame and suppresses the closing rotation operation. The damper means is formed using a damper hinge that couples a pair of hinge pieces so as to be pivotable to open and close around a central axis, and generates a resistance force against a closing and pivoting operation.
2. The damper blade according to claim 1, wherein the damper hinge is inserted into a recess formed at a base of the door, and the rotating blade is formed by one hinge piece protruding from the recess so as to be rotatable. Door closing control device. The rotating blade has a support rod extending at right angles to the rotating blade and toward the opening frame,
3. The door of claim 1, wherein in a region immediately before closing in the opening frame, the tip of the support rod comes into contact with the opening frame so that the rotating blade engages with the opening frame. Closing control device.

Images