JP2005336983A - Door closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door closing device capable of improving operation property of the door closing device, reducing the number of parts projecting from and exposed to doors as much as possible, improving design property, avoiding danger when closing a door, and providing ease of use for an aged person and a child and having recycle property by taking environment into account. <P>SOLUTION: When opening the door 5, a roller 14 provided on a stay 12 is locked at a position of substantially 90° for a main body 1 and is removed from a channel 31 having a substantially J shape of a receiving member 3 so that the door 5 can move freely in the direction of door opening. When closing the door, the roller 14 is inserted and fitted into the channel 31 having substantially J shape of the receiving member 3, and the stay 12 and a link 13 start to turn by door closing force of the door 5 to move and compress a piston rod 2b of a damper 2 in the parallel direction. Then, the piston rod 2b of the damper 2 starts to elongate, turns the stay 12 to a frame 4 side through the link 13, moves the roller 14 along an inner side face of the channel 31 having substantially J shape of the receiving member 3 so as to bring it in, and brings the door 5 close to the frame 4 side slowly to close the door. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door closing device for slowly closing a door even if the hinged door closes rapidly.

  In a conventional closing device, for example, as in Japanese Utility Model Publication No. 57-41333, one end of a short side of an L lever is pivotally attached to a U-shaped mounting frame, and a piston shaft of a dashpot is connected to a bending point of the L lever. In addition, the cylinder is pivotally attached to the mounting frame, and the piston is pressed to one side by the spring, and when opening the door, the L lever is rotated counter to the spring by the hook plate attached to the wall frame. When the door is closed, it is locked. When the door is closed, the L lever is turned counterclockwise by the hook plate just before the door is closed. In such an automatic closing device, the mounting piece protrudes to the left and right on the same plane as the central piece of the U-shaped mounting frame, and the upper end is provided with a locking piece bent to the opposite side of the left and right pieces , Clerk There was mounting frame of the automatic closing device of the mounting frame and be fixed to the door by holes provided in the mounting piece while hooking pieces to the upper end of the door.

  In Japanese Utility Model Publication No. 57-34295, in a dug-type door closer with a hydraulic cylinder installed vertically, a continuous circular hole is drilled in parallel to the long side on the center line of the rectangular steady-state plate, and the steady-state plate Are screwed onto the bottom surface of the bottom plate of the frame, and on the side plate of the roller receiving box that should be dug into the entrance / exit area, a plurality of projecting pieces are cut and raised from the side plate in a position that does not follow the vertical direction. A protruding door closer is disclosed.

  In the conventional closing device, the mounting piece projects left and right on the same plane as the central piece of the U-shaped mounting case, and the upper end is provided with a locking piece bent to the opposite side of the left and right pieces. Because it is a case that is fixed to the door with a screw hole provided in the mounting piece while hooking the stopper on the upper end of the door, it is exposed at the upper part of the opening door and is arranged at the approximate center of the door Therefore, it was unsightly and had a design problem.

  In addition, it is attached in the opening direction of the door by the method described above, and the receiving member is attached to the upper opening of the door opening so that it may not be attached depending on the shape of the hook. was there.

  In addition, most of the closing devices have a structure in which the door and the heel side are connected, and loads are always applied in the direction of closing the door, which makes the door to open and close heavy for the elderly and children, and burdens the opening and closing of the door. It took.

At the same time, most of the closing devices are constructed with a damper using hydraulic pressure, etc., so they are made rugged to prevent oil leakage, etc., and it is difficult to disassemble and dismantle. There was a problem that it was difficult to separate and discard each part.
[Means for solving the problems]

  One end of the case attached to the upper end of the door opening, a damper built in the case via a shaft, and the other end of the case are formed in a substantially U-shape, one is a short support The other has an elongated arm part, and a roller is rotatably locked to the tip of the arm part via a shaft. And a state in which a shaft hole for locking the piston rod of the damper via a shaft and a shaft hole for locking the shaft by a shaft is provided. And a receiving member attached to the upper surface of the door and provided with a substantially J-shaped groove on the inner surface. When the door is opened, the roller provided on the stay is moved from the substantially J-shaped groove of the receiving member. By the force of the damper at a position of about 90 ° to the main body The door is free to move in the opening direction, and when the door is closed, the roller is inserted and fitted into the substantially J-shaped groove of the receiving member, and at the same time, the stay and the link start to rotate, and the shaft is attached to the case. The piston hole of the damper is moved and compressed in the parallel direction until the shaft hole for locking via the shaft and the shaft hole for locking the link by the shaft are aligned in parallel, and after the two shaft holes are aligned in parallel, The damper's piston rod begins to expand, the stay is rotated to the heel side via the link, the roller is moved so that the substantially J-shaped groove of the receiving member is pulled along the inner surface, and the door is slowly moved to the heel side. I closed the door to pull it in.

  Furthermore, at one end of the case attached to the upper end of the door, a damper is installed inside the case via a shaft, and at the other end of the case is formed in a substantially U-shape, one is a short support part The other has an elongated arm part, and a roller is rotatably locked via a shaft at the end of the arm part, while a support part accommodated in the case is provided within the case. It comprises a state in which a shaft hole for pivotally locking the case via a shaft and a shaft hole for locking the link for allowing the piston rod of the damper to move in parallel by the shaft is provided. It consists of a main body and a receiving member that is attached to the upper arm of the door opening and has a substantially J-shaped groove on the inner surface. When the door is opened, the roller provided on the stay is a substantially J-shaped receiving member. Of the damper at a position approximately 90 ° to the main body. The door is free to move in the door opening direction, and when the door is closed, the roller is inserted and fitted into the substantially J-shaped groove of the receiving member, and at the same time, the stay and the link start to rotate. The shaft hole for locking via the shaft and the shaft hole for locking the link by the shaft are moved and compressed in parallel until the shaft hole for locking the link by the shaft is aligned in parallel, and the two shaft holes are aligned in parallel. Thereafter, the piston rod of the damper begins to extend, the stay is rotated to the door side via the link, the roller is moved so that the substantially J-shaped groove of the receiving member is called along the inner surface, and the door is slowly turned. It was drawn to the side (not shown).

  In addition, the shaft that secures the components that make up the main body is provided with a groove on the center side of the shaft, and a retaining ring is attached to the groove, eliminating mechanical locking methods such as caulking. Therefore, the door was closed so that it could be easily dismantled.

  And even if the arm portion of the stay is on the inner side surface or the outer side surface of the case, the door is operated so as to close slowly in conjunction with the expansion / contraction speed of the damper.

    According to the present invention, since the door is closed slowly by slowing the expansion / contraction speed of the damper, there is a risk of finger jamming in a sudden door closing state in which a gust of wind or excessive force is applied to the door. And the damper piston rod can be moved in parallel via the link, so the whole can be reduced in size, the main body is embedded in the upper edge of the door opening, and the receiving member is embedded in the upper edge of the door In addition, a receiving member is attached to the upper edge of the door opening, and the main body can be embedded in the upper edge of the door, so that it is not noticeable in terms of design, and it is easy to fit and easy to work.

  Furthermore, the shaft for fixing each part constituting the main body is provided with a groove near the middle of the shaft, and a retaining ring is attached to the groove, thereby eliminating mechanical locking methods such as caulking. Therefore, it can be easily disassembled, and by making the recycling work easy, there are effects such as being friendly to the environment.

  An embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a main body 1 of a closing device according to the present invention as viewed obliquely from above. 11 is a case, 12 is a stay, 2 is a damper, 3 is a receiving member, and 31 is an inner surface of the receiving member 3. Is a substantially J-shaped groove.

  FIG. 2 shows an assembly perspective view of the main body 1, and the damper 2 is internally fixed to the case 11 via the shaft 20, but the shaft 20 is removably locked to the inner wall of the case 11 by a retaining ring 23.

  The piston rod 2b of the damper 2 is inserted into the groove of the holding member 15 so as to be extendable and retractable, and is stably mounted in the case 11 by the rivet 21, so that the damper 2 itself does not rotate and only the piston rod 2b is in the case 11. In parallel, the elastic member moves in the casing 2a.

  The tip of the piston rod 2 b is locked to a shaft hole provided at one end of the link 13 via a shaft 18. The shaft 18 is locked to the outer wall of the link 13 by a retaining ring 23 so as to be disassembled.

  In addition, the multi-end shaft hole of the link 13 is releasably locked to the shaft hole of the support portion 12b of the stay 12 by the retaining ring 23 via the shaft 19 to the inner wall of the support portion 12b. The parallel expansion / contraction motion of the part 2b is converted into a rotational motion.

  In the other shaft hole of the stay 12, the stay 12 and the washer 22 are releasably locked to the inner wall surface of the stay 12 via a retaining ring 23 via a shaft 17. The roller 14 is rotatably locked by the rivet 16, and constitutes the main body 1 of the door closing device of the present invention.

  Since the main body 1 is configured as described above, the roller 14 provided on the stay 12 when the door 5 is opened is locked to the main body 1 by the force of the damper 2 at a position of approximately 90 °. The door 5 comes out of the substantially J-shaped groove 31 of the receiving member 3, and the door 5 is free to move in the door opening direction.

  Further, when the door is closed, the roller 14 is inserted and fitted into the substantially J-shaped groove 31 of the receiving member 3, and at the same time, the stay 12 and the link 13 begin to rotate due to the closing force of the door 6, and the stay 12 is in the case. The piston rod 2b of the damper 2 is moved and compressed in a parallel direction to a fulcrum where the shaft hole locked to the shaft 11 by the shaft 17 and the shaft hole locked by the shaft 19 are aligned in parallel. Fits in.

  At this time, since the piston rod 2b is fitted into the groove of the holding member 15 and is stably mounted in the case 11 by the rivet 21, it is provided so that the rotational movement of the link 13 can be converted into a smooth parallel movement. 11 is set to a dimension that allows the casing 2a of the damper 2 to be installed inside, so that it can be molded into a shape that fits well in the bag 4 or the door 5.

  Then, after the shaft hole in which the stay 12 is locked to the case 11 via the shaft 17 and the two shaft holes in which the link 13 is locked by the shaft 19 are arranged in parallel, the piston rod 2b of the damper 2 is slowly The stay 12 is rotated via the link 13, the roller 14 is moved so as to be called along the inner surface of the substantially J-shaped groove 31 of the receiving member 3, and the door 5 is slowly moved to the side of the flange 4. Pull the door closed.

  Further, the damper 2 is set to have a feeling of resistance when the piston rod 2b is compressed by the resistance medium in the casing 2a and to operate slowly when the piston rod 2b is extended. Thus, even in a sudden closing state in which the door 5 is closed slowly and a gust of wind or excessive force is applied to the door 5, it is possible to avoid danger such as finger jamming.

  FIG. 3 is a perspective view for explaining the mounting state of the present embodiment. 3 is a receiving member, 4 is a hook, 5 is a door, 6 is a hinge, 12 is a stay, and the stay 12 is relative to the main body 1. It is locked by the force of the damper 2 at a position of about 90 °, is detached from the substantially J-shaped groove 31 of the receiving member 3, and the door 5 is about to open. From this point, the door 5 is free to open. It becomes.

  FIG. 4 is a perspective view illustrating a state in which the mounting state of the present embodiment is viewed from the lower rear side, and the case 11 can be set to a dimension that allows the casing 2a of the damper 2 to be installed. It is arranged so as to be embedded in and is set so as not to stand out in terms of design.

  FIG. 5 shows a plan sectional view of the closing device when closed, in which the piston rod 2b of the damper 2 extends, the stay 12 is rotated to the side of the flange 4 via the link 13, and the substantially J-shaped receiving member 3 is formed. The state is described in which the roller 14 is moved along the inner surface of the groove 31 and the door 5 is slowly pulled to the side of the flange 4 and stopped. The door 5 is closed by pressing the door 5 into the door stop 41 by the force of the damper 2.

  FIG. 6 is a plan sectional view of the door closing device when opened. When the door is opened, the roller 14 disposed at the distal end of the arm portion 12a of the stay 12 passes through the substantially J-shaped groove 31 of the receiving member 3. It is described that the door 5 is locked and fixed by the force of the damper 2 at a position of approximately 90 ° with respect to the main body 1 and the door 5 can move freely in the door opening direction.

  FIG. 7 is a perspective view showing an example of the specification in which the stay 12 is exposed on the outer wall surface of the case 11. The stay 12 is not substantially U-shaped but is formed on a flat plate, and the case 11 is supported by the shaft 17. However, it is preferable that the engagement portion between the shaft 17 and the stay 12 is not a circular shape but a quadrangular shape or the like so that the force of the damper 2 is reliably transmitted to the stay 12. .

  FIG. 8 is a perspective view for explaining the mounting state of the embodiment in which the stay 12 is exposed on the outer wall surface of the case 11, and the door 5 is omitted.

  FIG. 9 shows a substantially U-shape, one of which is provided with a short support portion 12b and the other of which is provided with a long arm portion 12a, and a roller 14 via a rivet 16 at the tip of the arm portion 12a. The support portion 12b accommodated in the case 11 is pivotally engaged with the case 11 via the shaft 17 so as to be rotatable within the case 11, and the damper 2 It is a perspective view of the state 12 provided with the shaft hole which locks the link 13 for enabling parallel movement of the piston rod 2b with the shaft 19.

  FIG. 10 is a perspective view for explaining an embodiment of the specification exposed on the outer wall surface of the stay 12 and shows a state in which the shaft 17 and the stay 12 are integrally formed.

Perspective view of the main body Assembly perspective view Perspective view showing the mounting state A perspective view of the mounting state from the back Plan sectional view when the door is closed Plan sectional view when the door is opened Perspective view showing another embodiment The perspective view which shows the attachment state of another Example. Perspective view of stay The perspective view of the stay of another Example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Damper 2b Piston rod 3 Receiving member 4 框 5 Door 11 Case 12 Stay 13 Link 14 Roller 15 Holding material 16 Rivet 17, 18, 19, 20 Shaft 21 Rivet 23 Retaining ring 41 Door stop part 6 Hinge

Claims (4)

One end of the case attached to the upper end of the door opening, a damper built in the case via a shaft, and the other end of the case are formed in a substantially U-shape, one is a short support The other has an elongated arm part, and a roller is rotatably locked to the tip of the arm part via a shaft. And a state in which a shaft hole for locking the piston rod of the damper via a shaft and a shaft hole for locking the shaft by a shaft is provided. And a receiving member attached to the upper surface of the door and provided with a substantially J-shaped groove on the inner surface. When the door is opened, the roller provided on the stay is moved from the substantially J-shaped groove of the receiving member. By the force of the damper at a position of about 90 ° to the main body The door is free to move in the opening direction, and when the door is closed, the roller is inserted and fitted into the substantially J-shaped groove of the receiving member, and at the same time, the stay and the link start to rotate, and the shaft is attached to the case. The piston hole of the damper is moved and compressed in the parallel direction until the shaft hole for locking via the shaft and the shaft hole for locking the link by the shaft are aligned in parallel, and after the two shaft holes are aligned in parallel, The damper's piston rod begins to expand, the stay is rotated to the heel side via the link, the roller is moved so that the substantially J-shaped groove of the receiving member is pulled along the inner surface, and the door is slowly moved to the heel side. A closing device characterized in that the door is closed by being pulled in. One end of the case attached to the upper end of the door is provided with a damper installed inside the case via a shaft, and the other end of the case is formed in a substantially U shape, and one is provided with a short support. The other has an elongated arm part, and a roller is rotatably locked to the tip of the arm part via a shaft, while the support part accommodated in the case rotates within the case. A main body comprising a shaft hole for locking the case to the case via a shaft, and a state provided with a shaft hole for locking the piston rod of the damper so that the piston rod can be moved in parallel; And a receiving member that is attached to the upper edge of the door opening and has a substantially J-shaped groove on the inner surface. When the door is opened, a roller provided on the stay is a substantially J-shaped groove on the receiving member. By the force of the damper at a position approximately 90 ° to the body. The door is free to move in the opening direction.When the door is closed, the roller is inserted and fitted into the substantially J-shaped groove of the receiving member, and at the same time, the stay and the link start to rotate. After the shaft hole for locking through the shaft and the shaft hole for locking the link with the shaft are aligned in parallel, the piston rod of the damper is moved and compressed in parallel, and after the two shaft holes are aligned in parallel, The piston rod of the damper begins to extend, the stay is rotated to the door side via the link, the roller is moved so that the substantially J-shaped groove of the receiving member is called along the inner surface, and the door is slowly moved to the side. A closing device characterized in that the door is closed by being pulled toward the door. Because the shaft that fixes each component that constitutes the main body is provided with a groove on the center side of the shaft, and a retaining ring is attached to the groove, the mechanical locking method such as caulking is eliminated and the shaft is assembled. The door closing device according to claim 1 or 2, wherein the door can be easily disassembled. 2. The door closing device according to claim 1, wherein the door is operated so as to close the door slowly in conjunction with the expansion / contraction speed of the damper even if the arm portion of the stay is on the inner side surface or the outer side surface of the case. .

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