JPS5817100Y2 - Holder for opening doors, etc. - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an opening holder for a door or the like.

Generally, when repairing a power distribution board installed on the roof of a building, the doors (or lids) are left open, but the doors may close suddenly due to strong winds, resulting in an unexpected accident. may cause

For this reason, conventionally, the door was kept open by providing a stay on the door and tightening the middle part of the stay with a bolt, or by fitting a hole drilled in the middle part into a protrusion.
It takes time and effort to tighten the bolts or fit the protrusions into the holes, and the door may close due to loosening or inadvertent fitting.

The purpose of the present invention is 1. to provide something that can eliminate the above drawbacks.

An example of implementing the present invention will be described below with reference to the drawings.
As shown in FIGS. 4 to 4, the present invention includes an elongated flat stay 4 and a holding shaft 5 that is slidably attached to the stay 4 and can be stopped at a fixed position.

A long hole 6 with a constant width is bored in the longitudinal direction of the stay 4 from the center to one end, and a large diameter hole 7 having a diameter larger than the width of the hole 6 is formed at the tip of the long hole 6. Drilling is done.

In addition, a reinforcing rib 8 is bent and bent on one long side of the stay 4, and the center of rotation of the stay 4 itself is located at the end of the stay 4 opposite to the large diameter hole 7. A shaft hole 9 is bored.

On the other hand, as shown in FIGS. 3 and 4, the holding shaft 5 is continuous with the head 16 and has an outer diameter that is a little smaller than the width of the elongated hole 6 of the stay 40, and is slid into the elongated hole 6. Small diameter part 1 loosely fitted for free movement
1, and a large diameter portion 1-2 that is continuous with the small diameter portion 11 and has an outer diameter smaller than the inner diameter of the large diameter hole 7 of the stay 4 and can be fitted into the hole 7. It is a stepped shaft, and a spring 13 that exerts elastic pressure on the holding shaft 5 itself is externally mounted below the large diameter portion 12.

As shown in FIGS. 3 and 4, the holding shaft 5 is slidably provided at a fixed stroke on an outer cylinder 17 which can be fixed to the housing 1 or the door 3r.

That is, first, the outer cylinder 17 is formed into a two-stage cylindrical shape with upper and lower openings in which the large cylinder 18 and the small cylinder 19 are arranged in series, and the washer 21 can be inserted around the outer periphery of the small cylinder 19, and the nut 22 A threaded portion 20 that can be freely screwed in is carved, and then the large diameter portion 12 of the holding shaft 5 is inserted into the large cylinder 1B so that the large diameter portion 12 can freely protrude and enter from the upper end opening of the large cylinder 18. ,
The sliding shaft portion 14 protruding from the large diameter portion 12 of the holding shaft 5 is slidably inserted into the small cylinder 19, and the
A stopper 23 such as an E-ring is fitted onto the tip of the sliding shaft 14 that always protrudes from the lower end opening.

Here, the spring 13 externally mounted on the holding shaft 5 is
The spring is accommodated in a spring mounting hole 15 bored on the extension of the sliding ring part 14 in the large diameter part 12, and the other end is brought into contact with the inner bottom of the large cylinder 18 of the outer cylinder 17 to obtain a reaction force. The holding shaft 5 is pressed and pushed up through the process.

Therefore, when the holding shaft 5 comes to the position of the large diameter hole 1, the stopper 23 comes into contact with the lower end of the small cylinder 19, and the large diameter part 12 protrudes from the upper end of the large cylinder 18.

The usage method and effects of the holder having the above configuration will be explained.

First, as shown in Figures 1 and 2, a door (
Or, the stay 4 is rotatably attached near the hinge 2 on the bottom side of the lid) 1.

That is, the fulcrum shaft 10 is inserted into the shaft hole 9 of the stay 4, and the shaft 1
0 is inserted into the through hole 24 drilled in the housing 3, and is secured by tightening with a nut 25.

At this time, a spring 26 is interposed between the head of the fulcrum shaft 10 and the upper surface of the stay 4, so that the spring 26 always pushes down the stay 4.

Next, the small diameter portion 11 is loosely fitted into the elongated hole 6 of the stay 4 in advance, and the holding shaft 5, which is slidably provided with respect to the stay 4, is placed at a suitable location away from the hinge 2 on the lower side of the door 1. settle in position.

That is, the small cylinder 19 of the outer cylinder 17 to which the holding shaft 5 is attached is inserted into the through hole 21 formed in the door 1, and the nut 22 is screwed onto the threaded part 20 of the small cylinder 19 via the washer 21. Install it.

Thus, when the holding shaft 5 is located in the elongated hole 6 of the stay 4 as shown in FIGS. 1 and 2, the large diameter portion 12 of the holding shaft 50 is located in the elongated hole 6 as shown in FIG. Since it cannot be fitted loosely inside, the outer cylinder 11 is pressed by the lower surface of the stay 4.
The small diameter portion 11 of the holding shaft 5 is loosely fitted into the elongated hole 6.

As a result, the stay 4 can freely slide on the holding shaft 5, so that the door 3 can be freely opened and closed with respect to the housing 1.

However, when the door 1 is opened to a certain degree and the holding shaft 5 reaches the large diameter hole 7 of the stay 4, the large diameter portion 12 of the holding shaft 50 is fitted into the large diameter hole 7, as shown in FIG. Therefore, the holding shaft 5, which is always pushed up by the spring 13, is naturally pushed up and the large diameter portion 12 is fitted into the large diameter hole 7.

At this time, the stay 4 is constantly pressed down by the suffling 26 of the fulcrum shaft 10, so that the large diameter portion 12 is connected to the large diameter hole 7.
It helps to fit into.

Further, even if the upper end of the large diameter portion 12 is rounded or sloped as shown in FIG. 4, this will help the internal fitting.

Thus, the large diameter portion 12 fitted into the large diameter hole 7 cannot be loosely fitted into the long hole 6, so the holding shaft 5 cannot slide from the position of the large diameter hole 7 of the stay 4.

Therefore, the stay 4 is directly aligned between the holding shaft 5 and the fulcrum shaft 10, and the door 1 is maintained in the open state.

1. The transition from the open/close state of the door to the open and held state can be achieved simply by opening the door 1, without the need for tightening bolts or fitting protrusions into holes. It turns out.

Since the open holding state is not maintained by tightening the stay with bolts, there is no risk of the stay shifting due to loosening of the bolt and closing the door.
2 is not only fitted into the large diameter hole 7, but also the retaining shaft 5 is pushed up by the elastic pressure of the spring 13 to maintain the fitted state, so the large diameter portion 12 naturally comes off from the large diameter hole 7. There is no fear that door 3 will close.

Therefore, unexpected accidents caused by closing the door can be prevented.

Finally, when closing the door 1 after completing a predetermined task such as repairing a switchboard, push the holding shaft 5 down against the spring 13 by pushing its head 16 with your foot or the like. Since the diameter portion 12 protrudes into the large tube 18 of the outer tube 17, the small diameter portion 11 is positioned at the height of the stay 4 and can be moved into the elongated hole 6.

Therefore, if the door 1 is closed at the same time, the small diameter portion 11 will open into the elongated hole 6.
The door 3 moves inward and reaches the state shown in FIG. 3, where the door 3 can be freely closed.

First, the door can be moved from the open/close state to the free open/close state by simply pressing down on the holding shaft with your foot and closing the door, without having to loosen bolts or remove protrusions from holes. With work, you can achieve it.

By the way, the rib 8 protruding from the upper surface of the stay 4 is the retaining shaft 5.
This prevents it from being inadvertently pushed down by feet, etc. during repair work.

In this embodiment, the stay 4 is attached to the housing 3, and the holding shaft 5 is attached to the door 1, but they can also be attached in reverse.

Further, in order to facilitate installation and ensure reliable and smooth operation, the holding shaft 5 is slidably inserted into the outer cylinder 1γ which can be fixed to the housing 3 (or door 1). However, it is also possible to directly insert the holding shaft 5 into the mounting hole 27 of the housing 1 so as to be able to freely slide under the pressure of the spring 13.

Furthermore, by providing an appropriate number of large-diameter holes 7 in the stay 4 in the intermediate portions of the elongated holes 6, it is also possible to adjust the opening angle of the door 1 and hold it.

By the way, the opening angle of door 1 is the length of stay 4, large diameter hole 7
It is set appropriately depending on the drilling position of the stay 4, the mounting position of the stay 4, the mounting position of the holding shaft 5, etc.

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention.
The figures are a plan view and a partially cutaway front view of the attached state, FIG. 3 is an enlarged side sectional view taken along the line A-A in FIG. 2, and FIG. 4 is an enlarged side sectional view of the open holding state. In the above figure, each symbol indicates the following. 1: Door, 2: Hinge, 3: Housing, 4 Nisty, 5: Holding shaft, 6: Long hole, 7: Large diameter hole, 8: Rib, 9: Shaft hole, 10
:Fully shaft, 11: Small diameter part, 12: Large diameter part, 13 Nispring, 14: Sliding shaft part, 15 Nispring mounting hole, 1
6: Head, 17: Outer tube, 18: Large tube, 19: Small tube, 20
: Threaded part, 21: Washer, 22: Nut, 23: Stopper, 24: Through hole, 25: Nut, 26: Spring, 2
7: Through hole.

Claims (1)

[Scope of utility model registration request] A long hole having a large diameter hole at one end is bored in a flat stay interposed between the casing and a door hinged thereto, and a small diameter portion is slidably and loosely fitted into the long hole. A holding shaft having a large diameter portion that can be freely fitted into the large diameter hole is provided, a coiled spring is inserted into a spring mounting hole provided in the large diameter portion, and the lower part of the holding shaft is fixed to a door, etc. The stay is slidably inserted into the outer cylinder that receives the spring and has a stopper at the end, and the stay is placed at a lower position where it can be operated by foot, and the reinforcing rib of the stay is inserted into the large diameter 1. An opening holder for a door, etc., characterized in that it is formed in the vicinity of a hole so as to extend and protrude upward.