JP4071729B2 - Buffer closing device for joinery - Google Patents

Description

  The present invention is used for a fitting that is manually opened and closed attached to a frame, and in a specific section before the closing of the joinery, the speed of the joinery is reduced, and in the direction in which the fitting is closed. This is a shock-absorbing device for joinery that can actively close and close the joinery. In other words, even if the joinery is tightly closed or weakly closed, if it reaches a certain position, then it will slow down if it is tightly closed and will increase if it is weakly closed, and will be slowly closed in the same way. It was made to do.

Conventionally, as shown in Japanese Patent Application No. 4-39409 (Japanese Utility Model Laid-Open No. 6-1676), a joinery having means for biasing from any position until the joinery fully opens toward the closed position is used as this biasing means. A self-closing fitting with a shock absorber provided with means for applying a braking force when moving toward the closed position has been proposed.
Japanese Utility Model Laid-Open No. 6-1676

The self-closing joinery as in the above-mentioned conventional example has the advantage that the joinery closes by the urging force in the closing direction regardless of the position of the joinery, but when the joinery is to be opened, the joinery is in any position. However, it does not move unless a force greater than the urging force is applied, and there is a problem that the opening operation always requires a large force against the urging force necessary to fully close from full open. Further, when it is desired to open the joinery, there is a problem that the open state cannot be maintained unless another device for stopping the joinery is equipped.
An object of the present invention is to solve the above-mentioned problems, and when the fitting is strongly closed, the impact can be reduced and the generation and rebounding of the impact sound can be suppressed. Even when it has a weak closing force, it can cushion and close in most positions except the position before closing even though it has the effect that the fitting can be completely closed without leaving any closure. Thus, the joinery can be opened and closed by a normal natural operation regardless of the force or action of the apparatus for the purpose, and the joinery can be stopped and opened.

In order to solve the above-described problems, the present invention provides a fitting for a fitting in which a piston unit having a piston, a shaft and an abutting body is provided in a cylinder fixed to the fitting so as to be capable of reciprocating. This is a buffer closing device, in which a piston provided on a shaft is accommodated in a cylinder so as to be able to reciprocate, and a contact body is provided on a shaft led out from the end of the cylinder on the side of closing the fitting , A holding body that is biased by a closing spring in the opening direction of the joinery and that can hold the piston unit so as not to move with respect to the fitting in a state where the piston unit is pulled out in the closing direction of the joinery against the closing spring. The frame body to which the joinery is attached is provided with a receiving body that is held by the abutting body of the piston unit held by the holding body before the joinery is closed. When the joinery moves in the closing direction, the abutting body comes into contact with the receiving body, the piston unit is detached from the holding body and held by the receiving body, and is buffered when the piston slides relatively in the cylinder. In addition, the present invention is a buffer closing device for a joinery which can move the closing tool in a closing direction by a restoring force of a closing spring, and can buffer and close the closing tool.

According to a second aspect of the present invention, there is provided a buffer closing device for joinery, wherein a piston unit having a piston, a shaft and an abutting body is provided in a cylinder fixed to a frame so as to be reciprocally movable. The piston provided in the housing is reciprocally accommodated, and a contact body is provided on the shaft led out from the end of the cylinder on the opening side of the joinery , and the piston unit is biased by the closing spring in the closing direction of the joinery. The piston unit is provided with a holding body capable of holding the piston unit so as not to move with respect to the frame body in a state where the piston unit is pulled out in the opening direction against the closing spring. Is provided with a receiving body that is held in contact with the abutting body of the piston unit held by the holding body before the fitting is closed, and when the fitting moves in the closing direction, the receiving body The piston unit comes out of the holding body and is held by the receiving body by contacting the contact body, and is buffered when the piston slides relatively in the cylinder, and the fitting is closed by the restoring force of the closing spring. This is a buffer closing device for joinery that can be moved in the direction and can buffer and close the joinery that has been closed.

According to a third aspect of the present invention, there is provided a buffer closing device for joinery comprising a piston unit having a piston, a shaft, and an abutment body provided on a cylinder fixed to the joinery so as to be capable of reciprocating. The piston provided is accommodated so as to be able to reciprocate, and a contact body is provided on the shaft derived from the end of the cylinder on the opening side of the joinery , and the piston unit is urged in the opening direction of the joinery by a closing spring. The piston unit is provided with a holding body capable of holding the piston unit so as not to move with respect to the joinery in a state where the piston unit is retracted against the closing spring, and the joinery is closed on the frame body to which the joinery is attached. Before, the contact body of the piston unit held by the holding body is provided with a receiving body that is held in contact with the holding body. When the fitting moves in the closing direction, the contact body contacts the receiving body. The piston unit is detached from the holding body and is held by the receiving body. When the piston slides relatively in the cylinder, the piston unit is buffered, and the restoring force of the closing spring can move the fitting in the closing direction. It is a buffer closing device for a joinery that can buffer and close the joinery that has been constructed and can be closed.

According to a fourth aspect of the present invention, there is provided a buffer closing device for joinery comprising a piston unit having a piston, a shaft, and an abutting body provided on a cylinder fixed to a frame so as to be reciprocally movable. The piston provided in the cylinder is accommodated so as to be able to reciprocate, and a contact body is provided on the shaft led out from the end of the cylinder in the closing direction of the joinery , and the piston unit is biased by the closing spring in the closing direction of the joinery. The piston unit is provided with a holding body capable of holding the piston unit so as not to move with respect to the frame body in a state where the piston unit is retracted against the closing spring. Prior to closing, a receiving body that is held in contact with the abutting body of the piston unit held by the holding body is provided, and when the fitting moves in the closing direction, the receiving body contacts the abutting body. Contact The piston unit is detached from the holding body and is held by the receiving body. When the piston slides relatively in the cylinder, the piston unit is buffered, and the restoring force of the closing spring can move the fitting in the closing direction. It is a buffer closing device for a joinery that can buffer and close the joinery that has been constructed and can be closed.

  As described above, according to the present invention, when the fitting is tightly closed, the impact can be reduced to suppress the generation and rebound of the impact sound, and in the unlikely event that the rebound is excessive or the closing force is weak. At times, there is an effect that the joiner can be completely closed without closing.

  In addition, despite the above effects, in most positions except the position before closing, the fittings are opened and closed with normal natural movements regardless of the force or action of the device for buffering or closing. In addition, it is possible to stop the joinery and keep it open.

The invention of claim 1 and claim 3 is a type in which the main part is attached to the joinery side, and the invention of claim 2 and claim 4 is a type in which the main part is attached to the frame side. In the specification, the closing direction of the fitting H is the front, and the opening direction is the rear.
An embodiment of the invention of claim 1 will be described with reference to FIGS.
The buffer closing device for joinery of this embodiment is attached to the upper end surface of the joinery H that is housed in the cover body 8 having a substantially inverted U-shaped cross section and is slidably attached to the frame body W. ing. In this way, in addition to indirectly attaching the parts to the fitting H, of course, they may be directly attached, but if they are accommodated in the cover body 8, the attachment and other handling becomes convenient.
In addition, in this invention, all the components attached to a fitting and a frame may be attached directly, and of course, you may attach indirectly.

In the cover body 8, the cylinder 1 is fixed to an intermediate portion by a lid body 12 and a lid body 13 fitted to both end portions, and an end cap 15 is provided at a rear end portion. The lid 13 at the rear end of the cylinder 1 and the end cap 15 are provided apart from each other by a predetermined distance, and the cover body 8 behind the lid 13 is cut according to the width dimension of the fitting H by the predetermined distance. It can be adjusted.
In the present embodiment, the cylinder 1 is indirectly attached to the joinery H via the cover body 8, but may be directly attached to the joinery H as described above.

The cylinder 1 is filled with air and accommodates a piston 2 fixed to the rear end of the shaft 3 so as to be able to reciprocate. The shaft 3 is led out from a lid 12 at the front end of the cylinder 1, and the piston 2 and the lid A compression spring closing spring 4 is disposed between the body 12 and the body 12.
A contact body 5 is provided at the front end of the shaft 3, and a magnet 9 is provided on the front surface of the contact body 5. The piston 2, the shaft 3, the contact body 5 and the magnet 9 constitute a piston unit U.
The mounting position of the piston 2 on the shaft 3 and the mounting position of the abutment body 5 on the shaft 3 are not limited. However, as in this embodiment, the piston 2 is mounted on the rear end of the shaft 3 and abuts. When the body 5 is attached to the front end portion of the shaft 3, there is an advantage that the whole apparatus becomes compact and a large attachment space is not required. This also applies to the invention of claim 2 described later, although there are differences between before and after.

In this embodiment, as described above, the closing spring 4 is a compression spring that is accommodated in the cylinder 1 and disposed between the piston 2 and the lid 12 so as to exert a force in the direction of separating the two. However, if the arrangement is changed, such as changing the arrangement location, a tension spring, a gas spring, or the like may be used, so long as the piston unit U is urged backward with respect to the cylinder 1 and the fitting H.
It should be noted that biasing the piston unit U backward with respect to the cylinder 1 and the joinery H means that when the piston unit U is held by the receiving body 7 described later and fixed to the frame W, the joinery H Is biased forward, that is, in the closing direction.

  In the damper device of this embodiment comprising the cylinder 1 and the piston 2, an air vent hole is provided in the lid 13 at the end of the cylinder 1, and the opening area of the air vent hole is adjusted with a screw to adjust the buffer strength. However, the present invention is not limited to this embodiment, and other damper devices can be applied.

A holding body 6 is fixed to the front end portion of the cover body 8. The holding body 6 is provided with a notch portion 14 cut out in the running direction (front-rear direction) of the fitting H on the upper surface, and an adsorption plate 10 on which the magnet 9 of the abutting body 5 is adsorbed on the rear surface. And when the lower part of the magnet 9 of the contact body 5 attracts | sucks to the adsorption | suction board 10 of the holding body 6, it becomes the structure which the upper part of the magnet 9 is exposed so that it can be seen from the front end side of the fitting H.
When the magnet 9 of the contact body 5 is attracted to the suction plate 10 of the holding body 6, the piston unit U drawn forward against the closing spring 4 is held by the holding body 6. This state is a state in which the closing spring 4 is charged.

  The receiving body 7 provided with the suction plate 11 at the rear end portion of the elongated substrate 16 is fixed to the upper and inner surfaces of the Kamoi groove of the frame W. The suction plate 11 is provided so as to protrude downward on the lower inner surface of the Kamoi groove, and is in contact with the suction plate 10 of the holding body 6 by passing through the notch 14 of the holding body 6. The upper part of the magnet 9 of the body 5 is configured so as to be able to contact the suction plate 11. The receiving body 7 may be provided with a simple metal flat suction plate on the door contact surface in the Kamoi groove. However, in this case, it is necessary to provide the contact body 5 at the front end portion of the shaft 3 so as to protrude forward from the front end of the fitting H.

Contrary to the present embodiment, the magnet 9 may be a suction plate and the suction plates 10 and 11 may be replaced by magnets. Any device can be used.
Moreover, as shown in FIG. 16 of the Example of invention of Claim 2 mentioned later, the structure of the holding body part holding piston unit U is good also as a structure which hold | maintains the shaft 3 with the holding body 17, In short, A holding body capable of holding the piston unit so as not to move with respect to the joinery in a state in which the piston unit is pulled forward against the closing spring may be provided on the joinery or a part such as a lid or the piston unit. .

  In order to attach the buffer closing device for joinery of the present invention to the joinery H, the end cap 15 is removed, the cover body 8 is cut and adjusted according to the width dimension of the joinery H to be attached, and the end cap 15 is fixed again. Then, screws are attached to the upper end surface of the fitting H. Then, the receiving body 7 is screwed and fixed with the front end portion of the substrate 16 in contact with the door contact surface M on the upper inner surface of the Kamoi groove of the frame W. The substrate 16 of the receiver 7 has such a length that the suction plate 11 is provided at an appropriate position.

Next, the opening and closing of the fitting H will be described.
In a state where the lower part of the magnet 9 of the abutting body 5 of the piston unit U is attracted to the suction plate 10 of the holding body 6 (a state where the joinery H is open) (the state of FIGS. 6 and 10), When moving in the closing direction, before the closing, the upper part of the magnet 9 of the contact body 5 is in contact with and attracted to the suction plate 11 of the receiving body 7 (the state of FIGS. 7 and 11), and the fitting H is further moved. Then, the adsorption plate 10 of the holding body 6 moves away from the magnet 9 and moves together with the fitting H, but the magnet 9 of the piston unit U stops in a state where it is adsorbed to the adsorption plate 11 of the receiving body 7. Accordingly, the piston 2 of the piston unit U also stops, but the cylinder 1 moves forward together with the joinery H. That is, since the piston 2 slides rearward relative to the cylinder 1, the air in the cylinder 1 is compressed by the piston 2 (states of FIGS. 8 and 12). At this time, if the joinery H is closed with a strong force, the impact is mitigated.

As described above, the closing spring 4 urges the piston unit U rearward, that is, a force acts in a direction to separate the piston 2 and the lid body 12. 5 is attracted to the attracting plate 11 of the receiving body 7 fixed to the frame W, the rear piston 2 does not move relative to the frame W, and the front lid 12 is closed. 4 is pushed forward, and the fitting H to which the cylinder 1 with the lid 12 fitted is indirectly attached moves forward, that is, in the closing direction, contacts the door stop surface M, and is completely closed. (State of FIGS. 9 and 13).
Even if the joinery H rebounds when it comes into contact with the door contact surface M, the force of the closing spring 4 works in the direction to close the joinery H, so that the joinery H is finally completely closed.

  When the closing spring 4 closes the joinery H, the damper device composed of the cylinder 1 and the piston 2 acts as a resistance, but naturally the closing spring 4 has a force capable of completely closing the joinery H. .

  Even when the fitting H is closed with such a weak force that it cannot be fully closed, the upper part of the magnet 9 of the abutment body 5 is abutted against the adsorption plate 11 of the receiving body 7 and is adsorbed. If the joinery H comes to a position where the plate 10 is disengaged from the magnet 9, the joinery H is completely closed by the force of the closing spring 4.

  When the closed joinery H is moved in the opening direction against the force of the closing spring 4, the piston unit U does not move with respect to the frame W, and the cylinder 1 fixed to the joinery H moves backward together with the joinery H. (State of FIGS. 8 and 12). When the cylinder 1 moves backward, the internal piston 2 is deformed so that air can flow therethrough, so that the resistance from the damper device is not large. When the fitting H further moves, the suction plate 10 of the holding body 6 comes into contact with and attracts the magnet 9 of the contact body 5 that is attracted to the suction plate 11 of the receiving body 7 (the state shown in FIGS. 7 and 11). When the fitting H is further moved, the magnet 9 is separated from the suction plate 11 of the receiving body 7 while being attracted to the suction plate 10 of the holding body 6 (states of FIGS. 6 and 10).

  In a state where the magnet 9 is separated from the suction plate 11 of the receiving body 7 and is attracted to the suction plate 10 of the holding body 6, the closing spring 4 is charged and stationary, and the fixture H is moved. The force of the closing spring 4 does not work, and in this state, the joinery H is free and can be stopped at any position. And if it moves further, the fitting H will be open | released and a person will come in and out.

  It should be noted that the distance from the position of the fitting H when the magnet 9 of the abutment body 5 abuts against the suction plate 11 of the receiving body 7 is sufficient to alleviate the impact when the fitting H is closed. However, if it is too long, the free section in which the joinery H can stop is shortened, so there is no free section that can be stopped at a sufficient distance to be buffered when the joinery H is strongly closed. A free distance is desirable, and a range of approximately 5-25 centimeters is reasonable.

An embodiment of the invention of claim 2 will be described with reference to FIGS.
In the embodiment of the invention of claim 1, the cover body 8 in which all components are accommodated is fixed to the upper end surface of the fitting H, and the receiving body 7 is fixed to the inner surface of the frame body W. On the other hand, in the previous embodiment of the invention of claim 2, conversely, the cylinder 1 with the piston unit U attached is directly fixed to the inner surface of the frame body W and the receiving body 7 is attached to the upper end surface of the fitting H. It has a fixed configuration. In this embodiment, there is no cover body, and the cylinder 1 is directly fixed to the frame body W by the lid bodies 12 and 13.

Since the embodiment of the invention of claim 1 and the embodiment of the invention of claim 2 are reversed in the front-rear direction, in the embodiment of the invention of claim 2, the piston unit U is moved backward by the closing spring 4. The piston unit U is biased forward, and the piston unit U can be held against the frame W instead of the joinery H in a state where the piston unit U is pulled backward rather than forward against the closing spring 4. The holding body 17 which can be formed is provided.
In addition, urging the piston unit U forward with respect to the cylinder 1 and the frame W means that when the piston unit U is held by the receiving body 7 and fixed to the fitting H, the fitting H is moved forward. That is, urging in the closing direction.

As shown in FIG. 16, the structure of the holding body 17 portion is provided with a hole penetrating inward and outward in the lid 13 at the rear end of the cylinder 1, and a spherical holding body 17 is attached to the inside by a spring 19. The shaft 3 is pressed by a screw 18 from the outside, and the shaft 3 is provided with a groove 21 at a predetermined position on the entire circumference, and a C-ring stopper 20 is fixed in front of the groove 21. When the piston unit U is pulled rearward against the closing spring 4, the stopper 20 comes into contact with the inner surface of the lid 13 and the holding body 17 is pushed into the groove 21 by the force of the spring 19 to fit. The unit U is held by the holding body 17.
Of course, the structure of the holder portion may be the structure of the embodiment of the invention of claim 1.
In addition, the thing of the same code | symbol represents the same thing as the said Example of invention of Claim 1.

Next, the opening and closing of the fitting H will be described.
In a state where the holding body 17 is fitted in the groove 21 (a state where the joinery H is open) (state shown in FIGS. 14 and 16), when the joinery H is moved in the closing direction, Contrary to the embodiment of the invention, the suction plate 11 of the receiving body 7 fixed to the upper end surface of the fitting H comes into contact with the magnet 9 of the contact body 5 of the piston unit U and is attracted and held (see FIG. 17). State), when the joinery H further moves, the magnet 9 of the piston unit U moves forward together with the joinery H while being attracted to the suction plate 11 of the receiving body 7, and the holding body 17 is detached from the groove 21. Since the piston 2 of the piston unit U slides forward relative to the cylinder 1, the air in the cylinder 1 is compressed by the piston 2 (state shown in FIG. 18). At this time, if the joinery H is closed with a strong force, the impact is mitigated.

As described above, the closing spring 4 urges the piston unit U forward by applying a force in a direction to separate the lid 13 fixed to the frame body W and the piston 2 of the piston unit U. Therefore, the fitting H adsorbed on the piston unit U moves forward, that is, in the closing direction, contacts the door stop surface M, and is completely closed (state of FIG. 19).
Even if the joinery H rebounds when it comes into contact with the door contact surface M, the force of the closing spring 4 works in the direction to close the joinery H, so that the joinery H is finally completely closed.

  When the closing spring 4 closes the joinery H, the damper device composed of the cylinder 1 and the piston 2 acts as a resistance, but naturally the closing spring 4 has a force capable of completely closing the joinery H. .

  Even when the fitting H is closed with such a weak force that it cannot be closed, the suction plate 11 of the receiving body 7 comes into contact with the magnet 9 of the contact body 5 and is attracted, so that the holding body 17 is removed from the groove 21. If the joinery H comes to the position, the joinery H is completely closed by the force of the closing spring 4.

  When the closed joinery H is moved in the opening direction against the force of the closing spring 4, the magnet 9 of the contact body 5 of the piston unit U is attracted to the suction plate 11 of the receiving body 7 fixed to the joinery H. Therefore, the piston 2 of the piston unit U moves backward together with the joinery H (state shown in FIG. 18). When the piston 2 moves backward, the piston 2 is deformed so that air can flow therethrough, so that the resistance from the damper device is not large. When the fitting H further moves, the stopper 20 comes into contact with the inner surface of the lid 13, the holding body 17 is pushed into the groove 21 by the force of the spring 19, and the shaft 3 of the piston unit U is held by the holding body 17. (The state of FIGS. 16 and 17). When the fitting H further moves, the suction plate 11 of the receiving body 7 is separated from the magnet 9 of the contact body 5 with the holding body 17 still fitted in the groove 21 (state of FIG. 14).

  When the attracting plate 11 of the receiving body 7 is separated from the magnet 9 of the contact body 5 and the holding body 17 is fitted in the groove 21, the closing spring 4 is charged and stationary. In this state, the joinery H is naturally free and can be stopped at any position. And if it moves further, the fitting H will be open | released and a person will come in and out.

An embodiment of the invention of claim 3 will be described with reference to FIGS.
The buffer closing device for joinery of this embodiment is attached to the upper end surface of the joinery H that is housed in a cover body 29 having a substantially inverted U-shaped cross section and is slidably attached to the frame body W. ing. In this way, in addition to indirectly attaching the parts to the fitting H, of course, they may be directly attached, but if they are accommodated in the cover body 29, attachment and other handling become convenient.

The cover body 29 is fixed with the cylinder 22 near the tip portion by a holding body 27 and a lid body 30 fitted to both ends, and end caps 31 and 32 are provided at both ends. The cover body 29 can be adjusted by cutting the rear end portion according to the width dimension of the fitting H. The holding body 27 also serves as a lid of the cylinder 22 and is provided with a magnet 35 on the rear surface. The lid 30 is provided with a hole 39 that communicates the inside and outside of the cylinder 22.
In the present embodiment, the cylinder 22 is indirectly attached to the joinery H via the cover body 29, but may be directly attached to the joinery H as described above.

The cylinder 22 is filled with air and accommodates a piston 23 fixed to the front end of the shaft 24 so as to be able to reciprocate. The shaft 24 is led backward from the holding body 27 at the rear end of the cylinder 22, and the piston 23 A closing spring 25 of a compression spring is disposed between the lid body 30 and the lid body 30.
A contact body 26 is provided at the rear end of the shaft 24. The abutting body 26 is attached to a sliding body 33 attached to the rear end portion of the shaft 24 so that a retractable body 34 urged upward by a spring 38 is movable.
The mounting position of the piston 23 on the shaft 24 and the mounting position of the contact body 26 on the shaft 24 are not limited, but the piston 23 is mounted on the front end portion of the shaft 24 as in the present embodiment. When 26 is attached to the rear end portion of the shaft 24, there is an advantage that the entire apparatus becomes compact and a large installation space is not required. This also applies to the invention of claim 4 described later, although there are differences between before and after.
The movable body 34 can be moved when the fitting H is lifted when it is attached to or detached from the frame body W, and the retractable body 34 comes into contact with the upper inner surface of the Kamoi groove of the frame body W and can be attached and detached without getting in the way. Therefore, it may be movable up and down as in this embodiment, or may be rotatable. Further, both the sliding body 33 and the projecting body 34 are made of a magnetic material. The piston 23, the shaft 24, and the contact body 26 constitute a piston unit U.

  When the sliding body 33 of the contact body 26 is attracted to the magnet 35 of the holding body 27, the piston unit U retracted forward against the closing spring 25 is held by the holding body 27. This state is a state in which the closing spring 25 is charged.

In this embodiment, as described above, the closing spring 25 is a compression spring that is accommodated in the cylinder 22 and disposed between the piston 23 and the lid body 30 and exerts a force in a direction to separate them. However, if the arrangement is changed, such as changing the arrangement location, a tension spring, a gas spring, or the like may be used, so long as the piston unit U is urged backward with respect to the cylinder 22 and the fitting H.
In addition, urging the piston unit U backward with respect to the cylinder 22 and the fitting H means that when the piston unit U is held by the receiving body 28 described later and fixed to the frame W, the fitting H Is biased forward, that is, in the closing direction.

  In the damper device of the present embodiment comprising the cylinder 22 and the piston 23, an air vent hole is provided in the holding body 27 at the end of the cylinder 22 and the opening area of the air vent hole is adjusted with a screw to adjust the buffering strength. However, the present invention is not limited to this embodiment, and other damper devices can be applied.

  The receiving body 28 provided with a magnet 37 at the rear end portion of the substrate 36 is fixed to the upper and inner surfaces of the Kamoi groove of the frame W. The magnet 37 is provided so as to protrude downward on the lower inner surface of the ditch groove, and is configured so as to be able to come into contact with the projecting body 34 of the contact body 26 adsorbed to the magnet 35 of the holding body 27. ing.

Contrary to the present embodiment, the magnet 35 and the magnet 37 may be used as suction plates, and the sliding body 33 and the retracting body 34 of the contact body 26 may be replaced with magnets. Any device that can be held and detached may be used, such as an automatic catch device.
Moreover, as shown in FIG. 16 of the embodiment of the invention of claim 2 described above, the structure of the holding body portion that holds the piston unit U may be configured to hold the shaft 3 with the holding body 17. A holding body capable of holding the piston unit so as not to move with respect to the joinery in a state in which the piston unit is retracted forward against the closing spring may be provided in the joinery or a part such as the lid or the piston unit. .

  In order to attach the buffer closing device for joinery of the present invention to the joinery H, the end cap 32 at the rear end is removed, the cover body 29 is cut and adjusted according to the width dimension of the joinery H to be attached, and the end cap again. After fixing 32, screws are attached to the upper end surface of the fitting H. Then, the receiving body 28 is fixed to the board 36 by screws at appropriate positions on the upper and inner surfaces of the Kamoi groove of the frame W.

Next, the opening and closing of the fitting H will be described.
The direction in which the fitting H is closed in a state where the sliding body 33 of the abutting body 26 of the piston unit U is attracted to the magnet 35 of the holding body 27 (the state where the fitting H is open) (the state shown in FIGS. 26 and 30). , The retractable body 34 of the contact body 26 is brought into contact with and attracted to the magnet 37 of the receiving body 28 (the state shown in FIGS. 27 and 31), and when the fitting H is further moved, the holding body is moved. 27 magnet 35 moves away from the contact body 26 and moves together with the fitting H, but the contact body 26 of the piston unit U stops in a state where it is attracted to the magnet 37 of the receiving body 28. Accordingly, the piston 23 of the piston unit U also stops, but the cylinder 22 moves forward together with the joinery H. That is, since the piston 23 slides rearward relative to the cylinder 22, the air in the cylinder 22 is compressed by the piston 23 (state shown in FIGS. 28 and 32). At this time, if the joinery H is closed with a strong force, the impact is mitigated. Further, at this time, the inside of the cylinder 22 between the piston 23 and the lid body 30 is prevented from becoming negative pressure due to outside air entering from the hole 39.

As described above, the closing spring 25 urges the piston unit U rearward, that is, a force is applied in a direction in which the piston 23 and the lid 30 are separated from each other. 26 is attracted to the magnet 37 of the receiving body 28 fixed to the frame W, the rear piston 23 does not move relative to the frame W, and the front lid 30 is closed. 25 is pushed forward, and the fitting H to which the cylinder 22 to which the lid 30 is fitted is indirectly attached moves forward, that is, in the closing direction, contacts the door stop surface M, and is completely closed. (State shown in FIGS. 29 and 33).
Even if the joinery H rebounds when it comes into contact with the door stop surface M, the force of the closing spring 25 works in a direction to close the joinery H, so that the joinery H is finally completely closed.

  When the closing spring 25 closes the joinery H, the damper device composed of the cylinder 22 and the piston 23 acts as a resistance, but naturally the closing spring 25 has a force capable of completely closing the joinery H. .

  Even when the fitting H is closed with such a weak force that it cannot be closed, the projecting / retracting body 34 of the contact body 26 contacts and is attracted to the magnet 37 of the receiving body 28, and the magnet 35 of the holding body 27 is attracted. If the joinery H comes to a position where it disengages from the sliding body 33, the joinery H is completely closed by the force of the closing spring 25.

  When the closed joinery H is moved in the opening direction against the force of the closing spring 25, the piston unit U does not move relative to the frame W, and the cylinder 22 fixed to the joinery H moves backward together with the joinery H. (The state of FIGS. 28 and 32). When the cylinder 22 moves backward, the internal piston 23 is deformed so that air can flow therethrough, so that the resistance from the damper device is not large. When the fitting H further moves, the magnet 35 of the holding body 27 comes into contact with the sliding body 33 of the abutting body 26 and is attracted (the state shown in FIGS. 27 and 31), and when the fitting H further moves, the abutting body 26. In the state where the sliding body 33 is still attracted to the magnet 35 of the holding body 27, the projecting / retracting body 34 of the contact body 26 is separated from the magnet 37 of the receiving body 28 (the state shown in FIGS. 26 and 30).

  In a state where the projecting body 34 of the contact body 26 is separated from the magnet 37 of the receiving body 28 and the sliding body 33 is attracted to the magnet 35 of the holding body 27, the closing spring 25 is charged and stationary. Then, the force of the closing spring 25 does not work to move the joinery H. In this state, the joinery H is free and can be stopped at any position. And if it moves further, the fitting H will be open | released and a person will come in and out.

  It should be noted that the distance from the position of the fitting H when the retracting body 34 of the abutting body 26 abuts against the magnet 37 of the receiving body 28 is sufficient to alleviate the impact when the fitting H is closed. However, if it is too long, the free section in which the joinery H can stop is shortened, so there is no free section that can be stopped at a sufficient distance to be buffered when the joinery H is strongly closed. A free distance is desirable, and a range of approximately 5-25 centimeters is reasonable.

An embodiment of the invention of claim 4 will be described with reference to FIGS.
In the embodiment of the invention of claim 3, the cover body 29 in which all components are accommodated is fixed to the upper end surface of the fitting H, and the receiving body 28 is fixed to the inner surface of the frame body W. On the other hand, in the previous embodiment of the invention of claim 4, on the contrary, the cylinder 22 with the piston unit U attached is directly fixed to the inner surface of the frame body W, and the receiving body is received on the front end surface of the upper end of the fitting H. 28 is fixed. In this embodiment, there is no cover body, and the cylinder 22 is directly fixed to the frame body W by the holding body 27 and the lid body 30.

Since the embodiment of the invention of claim 3 and the embodiment of the invention of claim 4 are reversed in the front-rear direction, in the embodiment of the invention of claim 4, the piston unit U is moved backward by the closing spring 25. The piston unit U is biased forward, and the piston unit U can be held against the closing spring 25 so as not to move with respect to the frame body W, not the joinery H, in a state where the piston unit U is retracted backward rather than forward. The holding body 27 that can be formed is provided.
In addition, urging the piston unit U forward with respect to the cylinder 22 and the frame W means that when the piston unit U is held by the receiving body 28 and fixed to the fitting H, the fitting H is moved forward. That is, urging in the closing direction.

The abutting body 26 of the piston unit U is a magnet, a magnetic body suction plate 40 is provided on the front end surface of the holding body 27, and the receiving body 28 is made of a magnetic body.
In addition, the thing of the same code | symbol represents the same thing as the said Example of invention of Claim 3.

Next, the opening and closing of the fitting H will be described.
If the contact body 26 is attracted to the suction plate 40 of the holding body 27 (the joinery H is open) (the state shown in FIG. 34), if the joinery H is moved in the closing direction, it will be billed before it is completely closed. Contrary to the above-described embodiment of the invention of item 3, the receiving body 28 fixed to the front end surface of the upper end of the fitting H comes into contact with the contact body 26 of the piston unit U and is adsorbed and held (state of FIG. 35). When the joinery H further moves, the abutting body 26 of the piston unit U moves forward together with the joinery H in a state where it is adsorbed to the receiving body 28, and comes off from the adsorption plate 40 of the holding body 27. Since the U piston 23 slides forward relative to the cylinder 22, the air in the cylinder 22 is compressed by the piston 23 (state shown in FIG. 36). At this time, if the joinery H is closed with a strong force, the impact is mitigated.

Then, as described above, the force of the closing spring 25 acts in the direction of separating the lid 30 fixed to the frame body W and the piston 23 of the piston unit U to urge the piston unit U forward. Therefore, the fitting H adsorbed to the piston unit U moves forward, that is, in the closing direction, contacts the door stop surface M, and is completely closed (state of FIG. 37).
Even if the joinery H rebounds when it comes into contact with the door stop surface M, the force of the closing spring 25 works in a direction to close the joinery H, so that the joinery H is finally completely closed.

  When the closing spring 25 closes the joinery H, the damper device composed of the cylinder 22 and the piston 23 acts as a resistance, but naturally the closing spring 25 has a force capable of completely closing the joinery H. .

  Even when the fitting H is closed with such a weak force that it cannot be closed, the receiving body 28 is in contact with the contact body 26 and is attracted, and the contact body 26 is removed from the suction plate 40 of the holding body 27. If the joinery H arrives, the joinery H is completely closed by the force of the closing spring 25.

  When the closed fitting H is moved in the opening direction against the force of the closing spring 25, the contact body 26 of the piston unit U is adsorbed to the receiving body 28 fixed to the fitting H, so that the piston unit The piston 23 of U retracts together with the joinery H (state shown in FIG. 36). When the piston 23 moves backward, the piston 23 is deformed so that air can flow. Therefore, the resistance from the damper device is not large. When the fitting H further moves, the abutting body 26 comes into contact with and sucks the suction plate 40 of the holding body 27 (the state shown in FIG. 35), and when the fitting H further moves, the contacting body 26 becomes the suction plate of the holding body 27. While being adsorbed by 40, the receiving body 28 is separated from the contact body 26 (state shown in FIG. 34).

  When the receiving body 28 is separated from the suction plate 40 of the contact body 26, the closing spring 25 is charged and is stationary. In this state, the joinery H is naturally free and can be stopped at any position. And if it moves further, the fitting H will be open | released and a person will come in and out.

It is a whole front view of the state which attached the invention of Claim 1 to the fitting and the frame. It is a front view of the state which notched the cover body of invention of Claim 1. FIG. 3 is an enlarged perspective view of a main part in a state in which a part of the cover body and the cylinder is cut out in the invention of claim 1. In order to make it easy to explain the names of the respective parts, the contact body and the holding body are separated from each other for convenience. It is a principal part expanded longitudinal sectional view which abbreviate | omitted a part of invention of Claim 1. In order to make it easy to explain the names of the respective parts, the contact body and the holding body are separated from each other for convenience. FIG. 5 is an enlarged end view taken along line AA in FIG. 4. It is a longitudinal cross-sectional view of invention of Claim 1, and has shown the state just before a contact body contact | abuts to this receiving body. It is a longitudinal cross-sectional view of invention of Claim 1, and has shown the state which the contact body contact | abutted to this receiving body. It is a longitudinal cross-sectional view of invention of Claim 1, and the contact body is separated from the holding body and the state currently hold | maintained at the receiving body is shown. It is a longitudinal cross-sectional view of invention of Claim 1, and has shown the state by which the fitting was completely closed. It is a principal part enlarged view of FIG. It is a principal part enlarged view of FIG. It is a principal part enlarged view of FIG. It is a principal part enlarged view of FIG. It is a longitudinal cross-sectional view of invention of Claim 2, and shows the state just before this receiving body contact | abuts to a contact body. It is an enlarged view of the B section of FIG. It is an enlarged view of the C section of FIG. It is a longitudinal cross-sectional view of invention of Claim 2, and has shown the state which this receiving body contact | abutted to the contact body. It is a longitudinal cross-sectional view of invention of Claim 2, and has shown the state which the holding body left | separated from the groove | channel. It is a longitudinal cross-sectional view of invention of Claim 2, and has shown the state by which the fitting was completely closed. It is a whole front view of the state which attached the invention of Claim 3 to the fitting and the frame. It is a front view of the state which notched the cover body of invention of Claim 3. It is a perspective view of the principal part of invention of Claim 3. In invention of Claim 3, it is a principal part expansion perspective view of the state which notched the cover body and a part of cylinder. In order to make it easy to explain the names of the respective parts, the contact body and the holding body are separated from each other for convenience. It is a principal part expanded longitudinal sectional view which abbreviate | omitted a part of invention of Claim 3. In order to make it easy to explain the names of the respective parts, the contact body and the holding body are separated from each other for convenience. It is the DD line enlarged end elevation of FIG. It is a longitudinal cross-sectional view of invention of Claim 3, and has shown the state just before a contact body contact | abuts to this receiving body. It is a longitudinal cross-sectional view of invention of Claim 3, and has shown the state which the contact body contact | abutted to this receiving body. It is a longitudinal cross-sectional view of invention of Claim 3, and has shown the state to which the contact body is separated from the holding body and is hold | maintained at the receiving body. It is a longitudinal cross-sectional view of invention of Claim 3, and has shown the state by which the fitting was completely closed. It is a principal part enlarged view of FIG. It is a principal part enlarged view of FIG. It is a principal part enlarged view of FIG. It is a principal part enlarged view of FIG. It is a longitudinal cross-sectional view of invention of Claim 4, and has shown the state just before this receiving body contact | abuts to a contact body. It is a longitudinal cross-sectional view of invention of Claim 4, and has shown the state which this receiving body contact | abutted to the contact body. It is a longitudinal cross-sectional view of invention of Claim 4, and has shown the state which the contact body separated from the holding body. It is a longitudinal cross-sectional view of invention of Claim 4, and has shown the state by which the fitting was completely closed.

Explanation of symbols

H Joinery W Frame U Piston unit 1 Cylinder 2 Piston 3 Shaft 4 Closing spring 5 Abutting body 6 Holding body 7 Receiving body 22 Cylinder 23 Piston 24 Shaft 25 Closing spring 26 Abutting body 27 Holding body 28 Receiving body

Claims (4)

This is a shock absorber closing device for joinery, in which a piston unit having a piston, a shaft, and an abutment body is provided in a cylinder fixed to the joinery so as to be able to reciprocate, and the piston provided on the shaft can be reciprocated in the cylinder. The shaft that is housed in the cylinder and led out from the end of the cylinder on the closing direction of the joiner is provided with an abutment body, and the piston unit is biased by the closing spring in the opening direction of the joinery. In the state where it is pulled out in the closing direction of the joinery, it is provided with a holding body that can be held so as not to move with respect to the joinery, and the frame to which the joinery is attached is held before the joinery is closed. The abutting body of the piston unit held by the body is provided with an abutting body that abuts and is held, and when the joinery moves in the closing direction, the abutting body abuts on the abutting body, The unit is detached from the holding body and held by the receiving body so that the piston can be buffered when sliding relatively in the cylinder, and the fitting can be moved in the closing direction by the restoring force of the closing spring. A buffer closing device for a joinery that can buffer and close a joinery that has been formed and closed. This is a buffer closing device for joinery in which a piston unit having a piston, a shaft and an abutting body is provided in a cylinder fixed to a frame so as to be able to reciprocate, and the piston provided on the shaft is reciprocated in the cylinder. An abutment is provided on the shaft that can be accommodated and is led out from the end of the cylinder on the opening side of the joinery , and the piston unit is urged by the closing spring in the closing direction of the joinery. A holding body that can be held so as not to move with respect to the frame body in a state of being pulled out in the opening direction of the joinery against the spring is provided, and the joinery attached to the frame body has a structure before the joinery is closed. A receiving body that is held in contact with the abutting body of the piston unit held by the holding body, and when the fitting moves in the closing direction, the receiving body abuts on the abutting body, The unit is detached from the holding body and held by the receiving body so that the piston can be buffered when sliding relatively in the cylinder, and the fitting can be moved in the closing direction by the restoring force of the closing spring. A buffer closing device for a joinery that can buffer and close a joinery that has been formed and closed. This is a shock absorber closing device for joinery, in which a piston unit having a piston, a shaft, and an abutment body is provided in a cylinder fixed to the joinery so as to be able to reciprocate, and the piston provided on the shaft can be reciprocated in the cylinder. And a contact body is provided on the shaft led out from the end of the cylinder on the side of opening the joinery , and the piston unit is biased by the closing spring in the opening direction of the joinery. In the state where it is retracted against the fitting, it is provided with a holding body that can hold it so that it does not move. The abutting body of the piston unit abutting is held and held, and when the fitting moves in the closing direction, the abutting body abuts on the receiving body and the piston unit is held. Detached from the body and held by the receiving body, and is cushioned when the piston slides relatively in the cylinder, and the fitting can be moved in the closing direction by the restoring force of the closing spring, A shock-absorbing device for joinery that can buffer and close a joiner that has been operated to be closed. This is a buffer closing device for joinery in which a piston unit having a piston, a shaft and an abutting body is provided in a cylinder fixed to a frame so as to be able to reciprocate. An abutment is provided on the shaft that can be accommodated and is led out from the end of the cylinder on the side of closing the joiner , and the piston unit is biased by the closing spring in the closing direction of the joiner. A holding body that can be held against the frame in a state of being retracted against the spring is provided, and the fitting attached to the frame is attached to the holding body before the fitting is closed. A receiving body that is held in contact with the abutting body of the held piston unit is provided. When the fitting moves in the closing direction, the receiving body abuts on the abutting body, and the piston unit is retained. Detached from the body and held by the receiving body, and is cushioned when the piston slides relatively in the cylinder, and the fitting can be moved in the closing direction by the restoring force of the closing spring, A shock-absorbing device for joinery that can cushion and close a join-operated fitting.

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