JP2005336983A5 - - Google Patents

Description

Closing device

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

Japanese Utility Model Publication No. 57-41333 Japanese Utility Model Publication No.57-34295

  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 together with screwed to the bottom plate lower surface of the frame, the side plate of the roller受函should Komu drilling the doorway stiles, the never aligned in vertical position, by cutting and raising from the side plate toward a plurality of projecting pieces downwardly 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. There was a problem that it was difficult to separate and discard each part.

The invention according to claim 1 of the present application is provided at one end of the case attached to the upper arm of the opening of the door , at the other end of the case, with a damper installed in the case via a shaft. A short supporting portion that is configured by a main body having a stay provided and a receiving member that is attached to the upper surface of the door and that has a substantially J-shaped groove on the inner surface, and is housed in the case on one of the stays. And the other has an elongated arm part, and a roller is pivotally locked to the tip of the arm part via a shaft, and the support part is pivoted to the case. be one that is rotatable inside the case by being engaging through, is connected to the piston rod of the damper, at the time of door opening, the stay is in the direction of extension of said body the Dan at a position where the direction is substantially 90 ° of extension of the arm portion against It stopped by force, disengaged from the groove of substantially J-shaped roller the receiving member provided in the stay, door becomes free movement in the opening direction, at the time of closing, substantially J of the roller the receiving member At the same time as being inserted into and fitted into a letter-shaped groove, the stay is rotated by the closing force of the door to compress the piston rod of the damper .

The invention according to claim 2 of the present application includes: a damper mounted in the case via a shaft at one end of the case attached to the upper end of the door ; and a stay provided at the other end of the case. And a support member that is attached to the upper arm of the opening of the door and has a substantially J-shaped groove on the inner surface thereof, and one of the stays has a short support portion that is housed in the case. And the other has an elongated arm part, and a roller is pivotally locked to the tip of the arm part via a shaft, and the support part is pivoted to the case. be one that is rotatable inside the case by being engaging through, is connected to the piston rod of the damper, at the time of door opening, the stay is in the direction of extension of said body the Dan at a position where the direction is substantially 90 ° of extension of the arm portion against It stopped by force, disengaged from the groove of substantially J-shaped roller the receiving member provided in the stay, door becomes free movement in the opening direction, at the time of closing, substantially J of the roller the receiving member At the same time as being inserted into and fitted into a letter-shaped groove, the stay is rotated by the closing force of the door to compress the piston rod of the damper .

The invention according to claim 3 of the present application, when the door is closed, the stay is rotated by door closing force of the door, after the piston rod of the damper is compressed, the start elongation piston rod of the damper, the stay times is moving, the rollers to draw the receiving member moved along the inner surface of the groove of the substantially J-shaped, so as to draw the door stiles side, characterized in that the closing claim 1 or A door closing device according to 2 is provided.

In the invention according to claim 4 of the present application, the support portion is provided with a shaft hole for locking to the case via a shaft and a shaft hole for connecting to the piston rod of the damper. The piston rod of the damper starts to extend with respect to a line connecting a shaft for installing the damper inside the case and a shaft for locking the support portion to the case. The door closing device according to claim 3 is provided after the two shaft holes are arranged in parallel.

The invention according to claim 5 of the present application, the axis of Jikutome each part constituting the main body, which has a groove, characterized in that it is assembled by mounting the retaining ring in the groove claims Item 5. A door closing device according to any one of Items 1 to 4 .

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 overall size can be reduced. and attaching a receiving member to the stile on a door opening, etc. embed body the upper edge of the door, no longer stand out in terms of design, good freely fit became construction if easily.

  Furthermore, the shaft that fixes each component that constitutes 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 a mechanical locking method 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.

Further, the shaft 13 is removably locked to the shaft hole of the support portion 12 b of the stay 12 by the retaining ring 23 via the shaft 19 through the shaft hole at the other end of the link 13. The parallel expansion / contraction motion of the piston portion 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 start to rotate due to the closing force of the door 5 , 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. The engagement portion between the shaft 17 and the stay 12 is not a circular shape but a quadrilateral shape, etc., so that the force of the damper 2 can be 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 stay 12 provided with the shaft hole which locks the link 13 for enabling parallel movement of the piston rod 2b by 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 (5)

At one end of the case to be attached to the stile on the opening of the door, the body having a damper which is furnished to the case through a shaft, and a stay which is provided on the other end portion of the case,
It is attached to the upper surface of the door , and is composed of a receiving member provided with a substantially J-shaped groove on the inner surface,
One of the stays has a short support portion that is housed in the case, and the other has an elongated arm portion.
A roller is rotatably locked to the tip of the arm portion via a shaft,
The supporting part is a one that is rotatable inside the case by being engaging through a shaft to said casing, is connected to the piston rod of the damper,
During door opening, the stay is stopped by the force of the damper at a position where the direction is substantially 90 ° of extension of the arm part with respect to the direction of extension of said body, said the roller provided on the stay receiving member And the door is free to move in the opening direction.
During closing, characterized in that at the same time the roller is fitted into the groove of a substantially J-shaped of the receiving member, wherein the stay is rotated by door closing force of the door, it compresses the piston rod of the damper A closing device. A body provided with a damper installed in the case through a shaft at one end of the case attached to the upper end of the door, and a stay provided at the other end of the case;
It is attached to the upper arm of the opening of the door , and is composed of a receiving member provided with a substantially J-shaped groove on the inner surface,
One of the stays has a short support portion that is housed in the case, and the other has an elongated arm portion.
A roller is rotatably locked to the tip of the arm portion via a shaft,
The supporting part is a one that is rotatable inside the case by being engaging through a shaft to said casing, is connected to the piston rod of the damper,
During door opening, the stay is stopped by the force of the damper at a position where the direction is substantially 90 ° of extension of the arm part with respect to the direction of extension of said body, said the roller provided on the stay receiving member And the door is free to move in the opening direction.
During closing, characterized in that at the same time the roller is fitted into the groove of a substantially J-shaped of the receiving member, wherein the stay is rotated by door closing force of the door, it compresses the piston rod of the damper A closing device. When the door is closed, the stay is rotated by the closing force of the door, and after the piston rod of the damper is compressed, the piston rod of the damper starts to extend, the stay is rotated, and the receiving member is retracted. The door closing device according to claim 1 or 2, wherein the roller is closed by moving the roller along an inner surface of the substantially J-shaped groove and pulling the door toward the heel side. The support portion is provided with a shaft hole for locking to the case via a shaft, and a shaft hole for connecting to the piston rod of the damper,
The piston rod of the damper starts to extend, provided on the support portion with respect to a line connecting a shaft for interior of the damper in the case and a shaft for locking the support portion to the case. The door closing device according to claim 3, which is after two shaft holes are arranged in parallel. 5. The shaft according to claim 1 , wherein a shaft for securing each component constituting the main body is provided with a groove, and the shaft is assembled by attaching a retaining ring to the groove. Closing device.