JPS6332285Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a sliding or rotating door equipped with an automatic closing device, which prevents the door from rapidly closing even if you take your hand off the door after opening it. This invention relates to a door control device that slows down the speed at which the door begins to close.

Generally, when a patient, especially an elderly patient or a patient in a wheelchair, passes through a hospital with an open door, the automatic closing device attempts to close the door at a predetermined speed. They were unable to keep up with the closing speed, making it difficult to pass.

The present invention was developed in order to deal with such a problem, and a locking member is rotatably attached to and detachable from a hook provided on the door or building side, and the door is completely locked. The hook starts to engage with the lock member just before the lid is opened, and as the lid is further opened, the lock member rotates while being pushed by the hook, and when the lid is completely opened, the hook engages with the lock member, The locking member is rotatably supported by a delay device, and when the door is about to automatically close, the time for disengaging the locking member from the hook (speed) until the locking member rotates to its original state is controlled by a conventional delay device. This speed is slower than the speed at which the door begins to close, allowing patients to pass through hospitals and other facilities without any difficulty.

The present invention will be explained below based on drawings showing an example of implementation. In the figure, 1 is a sliding door that is automatically biased in the closing direction by an automatic closing device (not shown). A hook 2 is provided at the tip of a metal fitting 2a, which is made up of a horizontal rod-shaped body 2b. Reference numeral 3 denotes a delay device including a locking member 4 that engages with the hook 2 when the door 1 is completely opened. It is provided. 6 is a cover with a planar shape fixed to the building 5 side in order to support the delay device 3 on the building 5 side, and the lower end of the main body 7 of the delay device 3 is pivoted to the lower end of this cover 6 with a horizontal shaft 8. has been done.

By the way, as shown in FIGS. 4 and 5, the delay device 3 is connected and fixed to a piston 10 which is biased downward by a spring 9 in the main body 7, and is connected and fixed to the piston 10 so that the lid 11 at the upper end of the main body 7 is pushed upward. The main body 7 is closed by the upper and lower covers 11 and 13, and is filled with oil. The piston rod 12 is connected to the piston 10 and the lid 13 at the lower end.
It is also provided through the The interior of the main body 7 is partitioned into upper and lower parts by the piston 10, and the spring 9 is provided in the upper space. A flow path 14 is formed in the piston 10 to communicate the upper and lower spaces in the main body 7 with each other, and a spherical check valve 15 is provided in the flow path 14 to allow flow only from the upper space to the lower space. is provided. Further, the piston rod 12 has a longitudinally intermediate portion located above the piston 10 and within the upper space of the main body 7, and a longitudinally intermediate portion located below the piston 10 in the upper space of the main body 7 when the piston 10 and the piston rod 12 are lowered to the maximum extent. The portion located in the lower space is provided with flow passages 16 and 17 formed from the outer surface toward the center, respectively, and these flow passages 16 and 17 are flow passages formed along the axis of the piston rod 12. 18. An adjustment shaft 1 is screwed into the lower end of the flow path 18 from the lower end of the piston rod 12 in order to adjust the amount of communication between the flow paths 16 and 17.
9 is located. In the figure, 20 is a sealing O-ring, and 21 is a retaining plate for the check valve 15.

On the other hand, the lock member 4 is formed by bending a plate into a square shape, and engagement grooves 23, 23 for engaging the hook 2 are formed from the upper end surfaces of both side plates 22, 22. The starting ends of the engaging grooves 23, 23 are tapered open so that the hooks 2 can be easily engaged with each other. 24, 24 are its tapered surfaces. This locking member 4 is attached to the cover 6 so that the tapered surfaces 24, 24 face horizontally and the openings of the engagement grooves 23, 23 face the hook 2 in a normal state in which the hook 2 is not engaged. The piston rod 12 is pivotally supported at its upper end by horizontal shafts 25 and 26, respectively, in an inclined state, and its lower end is held in an inclined state by contacting the upper surface of the lid 11 at the upper end.

In the door control device described above, just before the door 1 is manually opened and completely opened, the rod-shaped body 2b at the tip of the hook 2 slides into the engagement grooves 23, 23 along the tapered surfaces 24, 24 of the lock member 4. The lock member 4 moves to the side and hits the lock member 4, and then is pushed by the rod-shaped body 2b of the hook 2 by the opening force of the door 1, and the lock member 4 rotates around the shaft 25 and stands up. At this time, door 1 is in a completely open state. When the lock member 4 rotates and stands up, the hooks 2 engage with the engagement grooves 23, 23 so as to hold the downstream plates 22, 22 of the lock member 4. Further, as the locking member 4 rotates and stands up, the piston 10 is lifted up against the spring 9 via the piston rod 12. At this time, the oil between the upper lid 11 and the piston 10 flows through the flow path 1 and the flow path 16→1.
8→17 between the piston 10 and the lower end lid 13. The two-dot chain line in Figure 2 and the door 1 in Figure 5 are
shows the fully opened state. Door 1 from this state
When you release your hand, the door 1 attempts to close automatically by an automatic closing device (not shown), but since the hook 2 is engaged with the lock member 4, the door 1 does not close until the engagement is released. Speed decreases. That is, in FIG. 5, the lock member 4 is connected to the piston 10 via the piston rod 12, so the downward movement of the piston 10, which is urged downward by the spring 9, causes the lock member 4 to move as shown in FIGS. Attempts to return to the original state shown in the figure. At that time, the oil that is between the piston 10 and the lower end lid 13 is pushed by the piston 10 and tries to escape, but the oil is removed from the flow path 17→18.
→ Piston 10 and upper end lid 11 only through 16
can flow between. However, the flow path 1
The amount of communication between 6 and 17 is adjusted by the adjustment shaft 19, so the speed of oil flow can be slowed down, which takes the time for the piston 10 to return, that is, the lock member 4 rotates to its original state and the hook 2 is disengaged. The time required to close the door 1 can be slowed down, and the speed at which the door 1 starts to close can be reduced. Therefore, the user can safely pass through until the door 1 is completely opened and the hook 2 is completely removed from the lock member 4.

In the above embodiments, the hook 2 was provided on the door 1 side, and the delay device 3 with the locking member 4 was provided on the building 5 side, but it is also possible to provide the hook 2 on the building 5 side and the delay device 3 on the door 1 side. You can also do it. Furthermore, the above-mentioned device is not limited to the sliding door 1, but can also be applied to the rotating door 1.

The door control device of the present invention can be implemented as described above, and has a locking member rotatably attached to and detachable from a hook provided on the door or building side, so that the door is completely closed. The hook starts to engage with the lock member just before the device is opened, and as the device is further opened, the lock member rotates while being pushed by the hook, and when the device is completely opened, the hook engages with the lock member. The locking member is rotatably supported by a delay device, and when the door is about to automatically close, the locking member is disengaged from the hook (speed) until it rotates to its original state.
Generally, an automatic closing device can make the speed slower than the speed at which the door begins to close, so patients can pass through hospitals and the like without any difficulty and with peace of mind.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention.
The figure is a schematic front view, FIG. 2 is an enlarged view of the main part, FIG. 3 is a perspective view of the hook and lock member, and FIGS. 4 and 5 are sectional views for explaining the operation. 1...Door, 2...Hook, 3...Delay device, 4
... Lock member, 5 ... Building, 6 ... Cover, 7
...Main body, 8...Horizontal axis, 9...Spring, 10...
Piston, 11... Lid, 12... Piston rod, 13... Lid, 14... Channel, 15... Check valve, 16, 17, 18... Channel, 19... Adjustment shaft, 22... Side plate , 23... Engagement groove, 24... Tapered surface, 25, 26... Shaft.

Claims (1)

[Scope of utility model registration request] A locking member is provided on the door side or building side equipped with an automatic closing device, which can be rotated and engaged with the hook provided on the building side or door side, and a delay device is provided on the door side or building side. At the same time, one end of a piston rod protruding from one end of the delay device is pivotally connected to the lock member, and a piston connected to the piston rod is provided within the delay device, and two spaces partitioned by the piston include:
A spring is provided in one of the spaces to urge the piston and the piston rod in a direction to release the locking member from the hook, and the piston rod and the piston are provided with a spring that allows the two spaces to communicate with each other. A check valve is provided in the flow path of the piston to close this flow path when the piston moves under the force of the spring, and the other end of the delay device A door control device characterized in that the other end of the piston rod protruding from the piston rod is provided with an adjustment shaft for adjusting the size within the flow path of the piston rod.