JP4071728B2 - 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-mentioned problems, the present invention provides a cylinder unit in which a piston is provided and a shaft fixed to a fitting is provided on a cylinder that accommodates the piston. A shock absorber closing device provided so as to be able to reciprocate, wherein the cylinder unit is biased in a door opening direction by a closing spring, and the cylinder unit is moved in the door closing direction against the closing spring. In this state, a holding body that can be held so as not to move with respect to the joinery is provided, and the frame body to which the joinery is attached has a contact with the cylinder unit held by the holding body before the joinery is closed. The contact body is provided with an abutting body that is held in contact. When the fitting moves in the closing direction, the abutting body abuts on the receiving body, and the cylinder unit is detached from the holding body and received. The piston is buffered when the piston slides relatively in the cylinder, and can be moved in the closing direction by the restoring force of the closing spring. Moreover, it is a buffer closing device for joinery that can be closed.

In order to solve the above-described problems, the present invention provides a cylinder unit in which a piston is provided and a shaft fixed to the frame body is provided with a contact body on a cylinder accommodating the piston. A shock absorber closing device for reciprocation, wherein the cylinder unit is biased by a closing spring in the closing direction of the joinery , and this cylinder unit is moved in the opening direction of the fitting against the closing spring. In such a state, a holding body that can be held so as not to move with respect to the frame body is provided, and the joinery attached to the frame body includes a cylinder unit that is held by the holding body before the joinery is closed. When the fitting moves in the closing direction, the receiving body abuts on the abutting body, and the cylinder unit is detached from the holding body and receives the receiving body. The piston is buffered when the piston slides relatively in the cylinder, and can be moved in the closing direction by the restoring force of the closing spring. Moreover, it is a buffer closing device for joinery that 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.

Invention of Claim 1 is a type which attaches a principal part to the joinery side of a joinery apparatus, and invention of Claim 2 is a type which attaches a principal part to the frame side of a joinery apparatus. In the specification, the direction in which the fitting is closed is the front, and the direction in which the fitting is opened is the rear.
A first 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 10 having a substantially inverted U-shaped cross section and is slidably attached to the frame body W. ing. As described above, the components may be directly attached to the joinery H, or may be directly attached to each other. However, when the components are accommodated in the cover body 10, the attachment and other handling become 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.

An end cap 16 is fixed to the rear end of the cover body 10, and the shaft attachment body 9 is fixed at a position a predetermined distance forward from the rear end of the cover body 10, and the rear end portion of the shaft 3 is fixed thereto. It is attached via a buffer 17.
The shaft attachment body 9 has a generally L-shaped overall shape, and a lower piece is fixed to the cover body 10, and a circular hole is formed in the center of the upper piece standing at a right angle from the lower piece, and an elastic material such as rubber is provided there. A ring-shaped buffer body 17 made of a material is fitted, a ring 19 made of metal or the like is inserted into the hole of the buffer body 17, and the rear end portion of the shaft 3 is fixed with a screw 18.
In the present embodiment, the shaft 3 is indirectly fixed to the joinery H via the cover body 10, but may be directly fixed to the joinery H as described above.

  The shaft mounting body 9 is fixed at a position away from the rear end of the cover body 10 by a predetermined distance by adjusting the cover body 10 behind the fixed shaft mounting body 9 according to the width dimension of the fitting H. This is for cutting. However, such a configuration has a merit that it can be adjusted, but also has a demerit such as an increase in the number of parts, and is not necessarily required. The shaft mounting body 9 is provided at the end and the end cap 16 is also used. May be.

  A spring attachment body 8 is attached to the shaft 3 at a front position of the shaft attachment body 9 so that the front-rear position can be adjusted, and the rear end portion of the closing spring 4 of the tension spring is fixed to the spring attachment body 8. The spring attachment body 8 may be attached to the cover body 10 so that the front-rear position can be adjusted. The spring mounting body 8 is mounted in such a manner that the position of the spring mounting body 8 can be adjusted in order to adjust the strength of the closing spring 4. However, this is not always necessary. The closing spring 4 may be fixed to the shaft mounting body 9 by using the mounting body 9 also.

  Furthermore, the spring attachment body 8, the shaft attachment body 9, and the end cap 16 can be combined into a single component, and the adjustment function corresponding to the width dimension of the fitting H can be obtained. Although the function of adjusting the strength of the closing spring 4 is sacrificed, there is an advantage that the number of parts is reduced.

A piston 2 is attached to the front end portion of the shaft 3, and the piston 2 is accommodated in the cylinder 1. The cylinder 1 has air therein, and a contact body 5 is fitted on the front end portion and a lid body 14 is fitted on the rear end portion.
The mounting position of the piston 2 on the shaft 3 and the mounting position of the contact body 5 on the cylinder 1 are not limited. However, as in this embodiment, the piston 2 is mounted on the front end of the shaft 3 and the contact body. When 5 is attached to the front end portion of the cylinder 1, there is an advantage that the entire apparatus becomes compact and a large attachment space is not required. This also applies to the first embodiment of the invention of claim 2 described later, although there are differences between before and after.
The lid body 14 has a front end portion of the closing spring 4 fixed thereto, the shaft 3 is slidably supported through the lid body 14, and a magnet 11 is provided on the front surface of the contact body 5. A cylinder unit U is constituted by the cylinder 1, the contact body 5, the magnet 11 and the lid body 14.

The abutting body 5 is slidably supported on the inner surface of the cover body 10, and the cylinder 1 is movable with respect to the joinery H. Therefore, since the piston 2 inside the cylinder 1 is fixed to the shaft 3 fixed to the joinery H, it does not move with respect to the joinery H, but when the cylinder 1 moves, the piston 2 moves relative to the inside of the cylinder 1. It is the structure which moves reciprocally.
In the present embodiment, the cylinder 1 is attached to the joinery H so as to be indirectly movable via the cover body 10, but it is also possible to attach the cylinder 1 directly by providing a concave groove in the joinery H or the like. .

As described above, the closing spring 4 is a tension spring in which a front end is fixed to the lid body 14 and a rear end is fixed to the spring mounting body 8, and a force is applied in a direction in which both approach each other. The closing spring 4 may be a compression spring that is accommodated inside the cylinder 1 and provided between the piston 2 and the lid body 14. In short, the closing spring 4 only needs to urge the cylinder unit U backward with respect to the shaft 3 and the fitting H.
The fact that the cylinder unit U is urged rearward with respect to the shaft 3 and the joinery H means that the joinery H is moved forward when the cylinder unit U is held by the receiving body 7 described later and fixed to the frame body W. That is, urging in the closing direction.

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

A holding body 6 is fixed to the front end portion of the cover body 10. The holding body 6 is provided with a notch 15 cut out in the running direction (front-rear direction) of the fitting H on the upper surface, and an adsorption plate 12 on which the magnet 11 of the abutting body 5 is adsorbed on the rear surface. And when the lower part of the magnet 11 of the contact body 5 adsorb | sucks to the adsorption | suction board 12 of the holding body 6, it becomes the structure which the upper part of the magnet 11 is exposed so that it can be seen from the front end side of the fitting H.
When the magnet 11 of the contact body 5 is attracted to the suction plate 12 of the holding body 6, the cylinder unit U moved 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. In the present embodiment, the holding body 6 is provided at the front end portion of the cover body 10 and also serves as an end cap. However, of course, the holding body 6 and the end cap may be provided separately.

  The receiving body 7 provided with the suction plate 13 at the rear end portion of the elongated substrate 20 is fixed to the upper inner surface of the duck groove of the frame W. The suction plate 13 is provided so as to protrude downward on the lower inner surface of the Kamoi groove, and is in contact with the suction plate 12 of the holding body 6 by passing through the notch 15 of the holding body 6. The upper part of the magnet 11 of the body 5 is configured to be able to abut on the suction plate 13. 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 cylinder 1 so as to protrude forward from the front end of the fitting H.

Contrary to the present embodiment, the magnet 11 may be a suction plate, and the suction plates 12 and 13 may be magnets. Any device can be used.
Further, as shown in FIG. 8, a hole is provided in the lid 14 at the rear end portion of the cylinder 1 so as to penetrate inward and outward, and a spherical holding body 21 is urged inward by a spring 23 to externally apply it. The shaft 22 may be pressed and provided with a groove 25 in a predetermined position on the shaft 1 around the entire circumference, and a C-ring stopper 24 may be fixed in front of the groove 25. When the cylinder unit U is moved forward against the closing spring 4, the inner surface of the lid body 14 comes into contact with the stopper 24, and the holding body 21 is pushed into the groove 25 by the force of the spring 23, The cylinder unit U is held by the holding body 21. In this case, the contact body 5 and the receiving body 7 at the front end of the cylinder 1 may have the same configuration as in the above-described embodiment.
In short, it is only necessary to provide a holding body or the cylinder unit or the like that can hold the cylinder unit so as not to move with respect to the joinery while moving the cylinder unit forward against the closing spring.

  In order to attach the buffer closing device for joinery of the present embodiment to the joinery H, the end cap 16 is removed, the cover body 10 is cut and adjusted according to the width dimension of the joinery H to be attached, and the end cap 16 is again attached. After fixing, 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 20 in contact with the door contact surface M on the upper inner surface of the Kamoi groove of the frame W. The substrate 20 of the receiver 7 has such a length that the suction plate 13 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 11 of the contact body 5 is attracted to the suction plate 12 of the holding body 6 (a state where the fitting H is open) (a state of [A] in FIG. 6 and [A] in FIG. 7). When the joinery H is moved in the closing direction, the upper portion of the magnet 11 is brought into contact with and attracted to the suction plate 13 of the receiving body 7 before the closing (H of FIG. 6B and FIG. 7B). State), when the joinery H further moves, the suction plate 12 of the holding body 6 moves away from the magnet 11 and moves together with the joinery H, but the magnet 11 of the cylinder unit U remains attracted to the suction plate 13 of the receiving body 7. Stop in the state of. Therefore, the cylinder 1 of the cylinder unit U also stops, but the piston 2 moves forward together with the fitting H and slides forward relative to the cylinder 1, so that the air in the cylinder 1 is compressed by the piston 2 ( [C] in FIG. 6 and [C] in FIG. 7). 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 cylinder unit U rearward, that is, a force is applied in a direction in which the lid body 14 and the spring mounting body 8 approach each other. Since the magnet 11 of the contact body 5 is attracted to the suction plate 13 of the receiving body 7 fixed to the frame W, the closing spring 4 fixed to the lid 14 at the rear end of the cylinder 1 is the spring mounting body 8. The fitting H to which the spring mounting body 8 is indirectly attached moves forward, that is, in the closing direction, abuts against the door contact surface M, and is completely closed (FIG. 6D and FIG. 7 [D] state).
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. . It should be noted that when the fitting H to which the present invention is attached is heavy, it is difficult to move, and when it is light, there is a disadvantage that it closes vigorously and generates a large impact sound. Therefore, as described above, the spring attachment body 8 attached to the shaft 3. The force of the closing spring 4 can be adjusted by changing the front / rear position.

  Further, even when the fitting H is closed with a weak force that does not fully close, the upper portion of the magnet 11 of the abutment body 5 is abutted and attracted to the adsorption plate 13 of the receiving body 7 to attract the holding body 6. If the joinery H comes to a position where the plate 12 is disengaged from the magnet 11, the joinery H is completely closed by the force of the closing spring 4.

  When moving in the direction to open the joinery H against the force of the closing spring 4, the cylinder 1 does not move, and the piston 2 at the tip of the shaft 3 fixed to the joinery H moves backward together with the joinery H ([[ C] and [C] in FIG. Since the piston 2 is deformed when it moves backward, air can flow therethrough, so the resistance from the damper device is not large. When the fitting H further moves, the suction plate 12 of the holding body 6 comes into contact with and attracts the magnet 11 of the contact body 5 attracted to the suction plate 13 of the receiving body 7 (see [B] in FIG. 6). When the joinery H is further moved, the magnet 11 is separated from the suction plate 13 of the receiving body 7 while being attracted to the suction plate 12 of the holding body 6 (FIG. 6B). [A] and [A] in FIG. 7).

  In a state where the magnet 11 is separated from the suction plate 13 of the receiving body 7 and is attracted to the suction plate 12 of the holding body 6, the closing spring 4 is charged and stationary, and is used to move the fitting H. 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 11 abuts against the suction plate 13 of the receiving body 7 to the closing needs to be a sufficient distance to alleviate the impact when the fitting H is closed. If the length is too long, the free section where the joinery H can stop is shortened. Therefore, it is desirable that the free section where the joinery H can be stopped is a sufficient distance to be buffered when the joinery H is strongly closed. A range of approximately 5-25 centimeters is reasonable.

A first embodiment of the invention of claim 2 will be described with reference to FIGS.
In the first embodiment of the invention of claim 1, the cover body 10 in which all parts 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 this embodiment , conversely, the cover body 10 in which all components are accommodated is fixed to the inner surface of the frame body W and the receiving body 7 is fixed to the upper end surface of the fitting H. It has become.

Since the first embodiment and the present embodiment of the invention of claim 1 are reversed in the front-rear direction, in this embodiment , the cylinder unit U is urged forward by the closing spring 4 instead of backward. A holding body 6 is provided which can hold the cylinder unit U against the closing spring 4 so as not to move with respect to the frame body W, not the joinery H, in a state where the cylinder unit U is moved backward rather than forward. It is made up of. In addition, the thing of the same code | symbol represents the same thing as said 1st Example of invention of Claim 1.
As for the movement, when the fitting H is moved in the closing direction, the receiving body 7 fixed to the upper end surface of the fitting H comes into contact with the contact body 5 contrary to the first embodiment of the invention of claim 1. The subsequent buffering and closing action is the same as in the first embodiment of the invention of claim 1.

A second 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 a cover body 33 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 respectively. However, if they are accommodated in the cover body 33, attachment and other handling become convenient.

An end cap 38 and an end cap 39 are fixed to the front end and the rear end of the cover body 33. Further, the holding body 31 is fixed slightly inside the end end cap 38, and the front end portion of the shaft 28 is attached thereto. It is. The holding body 31 has a function of holding a contact body 30 described later and a function of attaching a shaft (function as a shaft mounting body).
In the present embodiment, the shaft 28 is indirectly fixed to the joinery H via the cover body 33, but may be directly fixed to the joinery H as described above.

A piston 27 is attached to the rear end portion of the shaft 28, and the piston 27 is accommodated in the cylinder 26. The cylinder 26 has air therein, and a contact body 30 is fitted on the front end portion and a lid 37 is fitted on the rear end portion.
Although the mounting position of the piston 27 on the shaft 28 and the mounting position of the contact body 30 on the cylinder 26 are not limited, the piston 27 is mounted on the rear end portion of the shaft 28 as in this embodiment. When the body 30 is attached to the front end portion of the cylinder 26, there is an advantage that the entire apparatus becomes compact and a large attachment space is not required. This also applies to the second embodiment of the invention of claim 2 described later, although there are differences between before and after.
In the cylinder 26, a compression spring closing spring 29 is accommodated between the piston 27 and the lid 37.
The contact body 30 slidably supports the shaft 28, and a magnet 34 is provided on the front surface of the contact body 30. The shaft 28 led forward from the contact body 30 is attached to the holding body 31 as described above.
The cylinder 26, the contact body 30, the magnet 34 and the lid body 37 constitute a cylinder unit U.

The contact body 30 and the lid body 37 at both ends of the cylinder 26 are slidably supported on the inner surface of the cover body 33 so that the cylinder 26 can move with respect to the fitting H. Accordingly, since the piston 27 inside the cylinder 26 is fixed to the shaft 28 fixed to the joinery H, the piston 27 does not move with respect to the joinery H. However, when the cylinder 26 moves, the piston 27 moves relative to the inside of the cylinder 26. It is the structure which moves reciprocally.
In the present embodiment, the cylinder 26 is indirectly movably attached to the joinery H via the cover body 33. However, the cylinder 26 may be directly attached by providing a concave groove in the joinery H. .

As described above, the closing spring 29 is a compression spring accommodated between the piston 27 and the lid 37 in the cylinder 26, and urges the cylinder unit U rearward with respect to the shaft 28 and the fitting H. Anything is acceptable.
The fact that the cylinder unit U is urged backward with respect to the shaft 28 and the joinery H means that the joinery H is moved forward when the cylinder unit U is held by the receiving body 32 described later and fixed to the frame W. That is, urging in the closing direction.

The end cap 38 at the front end of the cover body 33 is provided with a notch 40 cut out in the running direction (front-rear direction) of the fitting H on the upper surface, and the rear surface of the holding body 31 is provided with the abutment body 30. An adsorption plate 35 on which the magnet 34 is adsorbed is provided. When the lower part of the magnet 34 of the contact body 30 is attracted to the suction plate 35 of the holding body 31, the upper part of the magnet 34 is exposed from the front end side of the fitting H so that it can be seen through the end cap 38 and the holding body 31. It has become the composition which is.
When the magnet 34 of the contact body 30 is attracted to the suction plate 35 of the holding body 31, the cylinder unit U moved forward against the closing spring 29 is held by the holding body 31. This state is a state in which the closing spring 29 is charged. In the present embodiment, the holding body 31 and the end cap 38 are provided separately. Of course, the holding body 31 may be provided at the front end portion of the cover body 33 to also serve as the end cap.

  A receiving body 32 provided with a suction plate 36 at the rear end portion of the elongated substrate 41 is fixed to the upper and inner surfaces of the Kamoi groove of the frame W. The suction plate 36 is provided so as to protrude downward on the lower inner surface of the Kamoi groove, passes through the cutout portion 40 of the end cap 38 and the upper side of the holding body 31, and then the suction plate 35 of the holding body 31. The upper part of the magnet 34 of the abutment body 30 adsorbed on the abutting member 30 is configured to be able to abut on the adsorption plate 36.

Contrary to this embodiment, the magnet 34 may be a suction plate, and the suction plates 35 and 36 may be magnets. Any device can be used. Moreover, it is good also as a structure like the Example shown in FIG. 8 of invention of Claim 1. FIG.
In short, it is only necessary to provide a holding body or the cylinder unit or the like that can hold the cylinder unit so as not to move with respect to the joinery while moving the cylinder unit forward against the closing spring.

  In order to attach the buffer closing device for joinery of the present embodiment to the joinery H, the end cap 39 is removed, the cover body 33 is cut and adjusted according to the width dimension of the joinery H to be attached, and the end cap 39 is again attached. After fixing, screws are attached to the upper end surface of the fitting H. Then, the receiving body 32 is screwed and fixed in a state where the front end portion of the substrate 41 is in contact with the door contact surface M on the upper inner surface of the Kamoi groove of the frame body W. The substrate 41 of the receiver 32 has such a length that the suction plate 36 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 34 of the contact body 30 is attracted to the suction plate 35 of the holding body 31 (a state where the fitting H is open) (a state [A] in FIG. 16 and a state [A] in FIG. 17). When the joinery H is moved in the closing direction, the upper portion of the magnet 34 comes into contact with the suction plate 36 of the receiving body 32 and is attracted (FIG. 16 [B] and FIG. 17 [B]). State), when the joinery H further moves, the suction plate 35 of the holding body 31 moves away from the magnet 34 and moves together with the joinery H, but the magnet 34 of the cylinder unit U remains attracted to the suction plate 36 of the receiving body 32. Stop in the state of. Accordingly, the cylinder 26 of the cylinder unit U also stops, but the piston 27 moves forward together with the fitting H and slides forward relative to the cylinder 26, so that the air in the cylinder 26 is compressed by the piston 27 ( [C] in FIG. 16 and [C] in FIG. 17). At this time, if the joinery H is closed with a strong force, the impact is mitigated.

As described above, the closing spring 29 urges the cylinder unit U rearward, that is, a force acts in a direction to separate the piston 27 and the lid 37 at the rear end of the cylinder unit U. Since the magnet 34 of the abutting body 30 of the unit U is attracted to the attracting plate 36 of the receiving body 32 fixed to the frame W, the closing spring 29 pushes the piston 27 forward, and the piston 27 The indirectly attached fitting H moves forward, that is, in the closing direction, contacts the door stop surface M, and is completely closed (states [D] in FIG. 16 and [D] in FIG. 17).
Even if the joinery H rebounds when it comes into contact with the door contact surface M, since the force of the closing spring 29 works in the direction to close the joinery H, the joinery H is finally completely closed.

  Even when the closing spring 29 closes the joinery H, the damper device composed of the cylinder 26 and the piston 27 acts as a resistance, but naturally the closing spring 29 has a force capable of completely closing the joinery H. .

  In addition, even when the fitting H is closed with a force that is not weak enough to close, the upper part of the magnet 34 of the contact body 30 is attracted to the suction plate 36 of the receiving body 32 and is attracted. If the joinery H comes to a position where the plate 35 is disengaged from the magnet 34, the joinery H is completely closed by the force of the closing spring 29.

  When moving in the direction to open the joinery H against the force of the closing spring 29, the cylinder 26 does not move, and the piston 27 at the tip of the shaft 28 fixed to the joinery H moves backward together with the joinery H ([[ C] and [C] in FIG. Since the piston 27 is deformed when it moves backward, air can flow therethrough, so that the resistance from the damper device is not large. When the fitting H further moves, the suction plate 35 of the holding body 31 comes into contact with and attracts the magnet 34 of the contact body 30 that is attracted to the suction plate 36 of the receiving body 32 (see [B] in FIG. 16). When the joinery H is further moved, the magnet 34 is separated from the suction plate 36 of the receiving body 32 while being attracted to the suction plate 35 of the holding body 31 (FIG. 16B). [A] and [A] in FIG. 17).

  In a state where the magnet 34 is separated from the suction plate 36 of the receiving body 32 and is attracted to the suction plate 35 of the holding body 31, the closing spring 29 is charged and stationary, and is used to move the fitting H. The force of the closing spring 29 stops working, 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 34 abuts against the suction plate 36 of the receiving body 32 until the fitting H is closed needs a sufficient distance to alleviate the impact when the fitting H is closed. If the length is too long, the free section where the joinery H can stop is shortened. Therefore, it is desirable that the free section where the joinery H can be stopped is a sufficient distance to be buffered when the joinery H is strongly closed. A range of approximately 5-25 centimeters is reasonable.

A second embodiment of the invention of claim 2 will be described with reference to FIGS.
In the second embodiment of the invention of claim 1, the cover body 33 in which all parts are accommodated is fixed to the upper end surface of the fitting H, and the receiving body 32 is fixed to the inner surface of the frame body W. On the other hand, in the present embodiment , conversely, the cover body 33 in which all components are accommodated is fixed to the inner surface of the frame body W and the receiving body 32 is fixed to the upper end surface of the fitting H. It has become.

Since the second embodiment of the invention of claim 1 and the present embodiment are reversed in the front-rear direction, in this embodiment , the cylinder unit U is urged forward by the closing spring 29 instead of backward. A holding body 31 is provided which can hold the cylinder unit U against the closing spring 29 so as not to move with respect to the frame W rather than the fitting H in a state where the cylinder unit U is moved backward rather than forward. It is made up of. Other, it is of the same sign as, represents the same as the second embodiment of the invention of claim 1.
As for the movement, when the fitting H is moved in the closing direction, the receiving body 32 fixed to the upper end surface of the fitting H comes into contact with the contact body 30 contrary to the second embodiment of the invention of claim 1 . The subsequent buffering and closing action is the same as in the second embodiment of the invention of claim 1 .

It is a whole front view of the state which attached the 1st Example of invention of Claim 1 to the fitting and the frame. It is a perspective view of the principal part of 1st Example of invention of Claim 1. FIG. 3 is an enlarged end view taken along line XX in FIG. 2. 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 first embodiment of the invention of claim 1 (a state where the contact body is separated from the holding body). It is a principal part expanded longitudinal cross-sectional view which abbreviate | omitted a part of 1st Example of invention of Claim 1 (state which contact | abutted body was separated from the holding body). FIG. 3 is a front view of the first embodiment of the first aspect of the present invention with the cover body cut away, and is divided into stages [A] to [D] in order to explain the movement. It is an expanded sectional view of the principal part of 1st Example of invention of Claim 1, and in order to demonstrate a motion, it is divided into the stage of [A]-[D] like FIG. It is a principal part expanded sectional view which shows the Example which changed the one part structure of 1st Example of invention of Claim 1. FIG. It is a whole front view of the state which attached the 1st Example of invention of Claim 2 to the fitting and the frame. It is an enlarged view of the Y section of FIG. FIG. 10 is an enlarged view of a Z part in FIG. 9. 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 perspective view of the principal part of 2nd Example of invention of Claim 1 . FIG. 5 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 second embodiment of the invention of claim 1 ( a state where the contact body is separated from the holding body). It is a principal part expanded longitudinal cross-sectional view which abbreviate | omitted a part of 2nd Example of invention of Claim 1 (state which separated the contact body from the holding body). It is a front view of the state which notched the cover body of 2nd Example of invention of Claim 1, and in order to demonstrate a motion, it has divided into the stage of [A]-[D]. FIG. 9 is an enlarged cross-sectional view of the main part of the second embodiment of the invention of claim 1, and is divided into stages [A] to [D] similarly to FIG. 16 in order to explain the movement. It is a whole front view of the state which attached the 2nd Example of invention of Claim 2 to the fitting and the frame. It is a principal part expanded longitudinal cross-sectional view which abbreviate | omitted a part of 2nd Example of invention of Claim 2 .

Explanation of symbols

H Joinery W Frame U Cylinder unit 1 Cylinder 2 Piston 3 Shaft 4 Closing spring 5 Abutting body 6 Holding body 7 Receiving body 21 Holding body 26 Cylinder 27 Piston 28 Shaft 29 Closing spring 30 Abutting body 31 Holding body 32 Receiving body

Claims (2)

A shock absorber closing device for joinery which is provided with a piston unit and a cylinder unit provided with an abutting body on a cylinder accommodating the piston on a shaft fixed to the joinery so as to be reciprocally movable. Provided with a holding body that is urged by a spring in the opening direction of the joinery, and that can hold the cylinder unit against the fitting in a state of moving 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 cylinder unit held by the holding body before the joinery is closed. The cylinder unit is detached from the holding body and held by the receiving body, and is buffered when the piston slides relatively in the cylinder. Rutotomoni, form such that it can move the fitting in the closing direction by the restoring force of the closing spring, and the buffer was closed operation joinery, joinery buffer closure device can be yet closed. A shock absorber closing device for joinery, in which a cylinder unit in which a piston is provided and a cylinder unit in which a contact body is provided in a cylinder that accommodates the piston is provided on a shaft fixed to a frame so as to be reciprocally movable. A holding body that is biased by a closing spring in the joiner closing direction and that can hold the cylinder unit so as not to move with respect to the frame body in a state in which the cylinder unit is moved in the joiner opening direction against the closing spring. The joinery that is provided and attached to the frame body is provided with a receiving body that is held in contact with the abutting body of the cylinder unit held by the holding body before the joinery is closed. When moving in the closing direction, the receiving body comes into contact with the contact body, the cylinder unit is detached from the holding body and held by the receiving body, and is buffered when the piston slides relatively in the cylinder. Rutotomoni, form such that it can move the fitting in the closing direction by the restoring force of the closing spring, and the buffer was closed operation joinery, joinery buffer closure device can be yet closed.

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