JPS5820768Y2 - Swing door support device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a support device for a swinging field, and more specifically, it automatically returns the swinging field from an open operating position to a closed position using the weight of the door body. To provide a support device for a swinging field that allows

Conventionally, in order to open and close the swinging field, there is a spring mechanism type that uses a cam to automatically return from the open position to the closed position.

When a spring mechanism type uses a cam, the force applied to the spring is different between the open position and the closed position, and if the strength is adjusted to suit the closed position, the spring will return quickly and prevent damage to the door or damage to the door. This may pose a hazard due to inertia or may pose an obstruction to persons or goods transported through the open passageway.

Therefore, in the case of a spring mechanism, the spring is weakened, and in the case of a cam, the inclination is made smaller, but in this case, the movement becomes slow and if a sealing material is installed to maintain airtightness, it will not be able to return due to this friction etc. It may be in the state of open residue 1.

Furthermore, the oscillating field is prone to many failures and goes awry, so it rarely returns to the completely closed position.

There are existing models that have grooves on the cam surface of the casing to prevent the door from tilting, but once the cam surface is molded, the opening and closing movements cannot be adjusted, and the opening and closing movements are not adaptable.

In view of the above points, the present invention is provided to solve this problem.

In other words, it is a device that allows the door to return from the open position to the closed position by its own weight, and is stably inoperative in the closed position.Moreover, the opening and closing movements can be freely selected, and the structure is the simplest. This reduces the number of failures.

Furthermore, the oscillating field is suspended by a trochanter attached to a support arm from a shaft attached to the wall surface, and smooth operation is ensured by the trochanter and a receiving plate on the door side that receives the trochanter. be.

An embodiment of the swing door support device according to the present invention will be described in detail below with reference to the accompanying drawings.

Reference numeral 1 denotes a swinging door body, which is pivoted around shafts 5 and 6, which are provided facing each other on the same vertical line, from mounting plates 3 and 4 attached above and below the corner side of the opening 2, which serves as a passage. Supported for rotation.

The shaft 5 of the upper mounting plate 3 is provided with an arm rod 7 extending laterally on the lower side.

This arm rod 7 is perpendicular to the shaft 5 and has one end adjustable and extended from the shaft 5 so as to be in the direction of the closed position of the door body, and a trochanter 8 is pivotally supported at the tip.

A notch 9 is provided in the upper corner of the swing door body 1, and a receiving frame 10 is fitted into the notch 9 for installation.

The old receiving frame 10 has an insertion hole 11 into which the shaft 5 is inserted, and a mounting plate 13 on which a receiving plate 12 inclined toward the arm rod 7 is installed horizontally, so that the angle of inclination of the receiving plate 12 can be adjusted. It is attached by bolts 14 on the inside.

The receiving plate 12 has an arm rod 7 when the swing door body 1 is in the closed position.
A groove 15 with a curved surface into which the trochanter 8 fitted is provided, and the receiving plate 12 in the receiving frame 10 on the side of the door body 1 is connected to the trochanter 8.
The shaft 5 from the plate 3 is inserted into an insertion hole 11 bored in the mounting plate 13 so that the shaft 5 can be rotated about the shaft 5.

The main body 1 is fitted into the lower part of the door main body 1 in correspondence with the shaft 6.
A reinforcing plate 16 is provided which is sandwiched between the reinforcing plate 16, a through hole 17 for inserting the shaft 6 is bored in the reinforcing plate 16, and an insertion hole 18 for the shaft 6 passing through the through hole 11 is formed in the door body 1. The door body 1 is rotated about a shaft 6 inserted into a through hole 17 on a straight line connecting the two holes 6 and 6, and the door body 1 is moved up and down along the shaft 6.

In the figure, 19 is a cover that covers the receiving frame 10 attached to the upper notch of the door body 1, and 20 is a cover that is attached around the door body 1 and covers the wall surface 21.
It is an airtight member that closes the gap between the

This device has the above-mentioned structure, and the door body, which rotates around shafts 5 and 6 on the vertical line from the mounting plates 3 and 4 attached above and below the corners of the opening 2, extends from the shaft 5 at the top. A trochanter provided on the arm rod 7 suspends the arm through the receiving plate 12, and also supports the receiving plate 12.
A trochanter 8 is fitted into a groove 15 provided in the groove 15, so that the door body 1 is in the closed position and inoperative. When the door body 1 is pushed from this inoperative position, the trochanter 8 positioned in the groove 15 will move against the curved surface of the groove 15. The door body 1 is guided along the shafts 5 and 6 and lifted.

When the pressure is released, the lifted door body 1 receives a force in the downward direction due to its own weight, that is, from Fig. 6, the restoring force M is M
= R * W cos θ * sin θ (where W is the weight of the door body and R is the distance from the shaft 5 to the trochanter 8 inches, so it returns rapidly and the trochanter 8 engages with the groove 15, causing a failure. It becomes activated.

The restoring force can be freely selected depending on the inclination of the receiving plate 12 and the position of the trochanter 8 from the arm rod 7, and since it is operated by the weight of the door itself, there is no need for a complicated structure such as a spring mechanism. It's easy.

Further, since the trochanter 8 engages in the groove 15, it is reliably inactive in the closed position, so that an airtight state can be maintained when sealing or the like is performed.

[Brief explanation of drawings]

The drawings show an embodiment of the swing field support device according to the present invention, in which Fig. 1 is a front view, Fig. 2 is a front view with a part of the upper support part cut away, and Fig. 3 is a second 4 is a bottom view taken along the line XX in FIG. 2, FIG. 5 is a front view of the lower support portion, and FIG. 6 is an explanatory view. 1... Swinging door body, 2... Opening, 3
, 4...Mounting plate, 5, 6...Shaft, 7.
... Arm bar, 8 ... Trochanter, 9 ... Notch, 10 ... Receiving frame, 11 ... Insertion hole,
12... Receiving plate, 13... Mounting plate, 14
...Bolt, 15...Groove, 16...
...Reinforcement plate, 1γ...Through hole, 18...
...Insertion hole.

Claims (1)

[Scope of utility model registration request] Vertical shafts for pivotally supporting the swing door body are provided vertically opposite each other on the same vertical line on the upper and lower corner sides of the passage opening, and a notch is formed in the upper corner of the swing door main body, and a notch is formed in the upper corner of the swing door body, and A receiving frame with an insertion hole drilled therein is installed in the notch, and a receiving plate that is inclined upward toward the open end of the swing door body supported by a vertical axis is installed inside the receiving frame, and a roller that is in contact with the receiving plate is attached. The trochanter is provided on an arm rod that protrudes laterally from the upper vertical axis, and the receiving plate has a downwardly curved groove into which the trochanter enters when the door body is closed. A support device for a swinging field, which has a vertical insertion hole in an opposing position, through which the vertical shaft is inserted to pivotally support the door body and guide it in the vertical direction.