JPH02125085A - Straight rising rotary elevating door - Google Patents

Abstract

PURPOSE:To cause vertical elevation of a door and to facilitate assembly and disassembly of parts by a method wherein the free end of a support arm is pivotally engaged with a door, and a floating connecting lever is pivotally engaged with a driving wheel rotated at a speed being two times as rapid as the rotation speed of the support arm. CONSTITUTION:The end part of a support arm 22 pivotally supported to an axle fulcrum 42 located to the upper part of a stay 32 is pivotally engaged with a first axle Y mounted to a door 1. A driving wheel P moved of a speed two times as rapid as the rotation speed of the support arm 22 is situated as a third axle N to the intermediate part of the support arm 22, and a floating connecting lever 22a is pivotally engaged therewith. The other end of the floating connecting lever 22a is pivotally engaged with a second axle Z located to the door 1. When the door 1 is elevated during opening and closing, the lower part of the door 1 is pulled internally by means of the floating connecting lever 22a, and the lower edge of the door 1 is vertically lowered. This constitution enables execution of a work by separating the support arm 22 mounting constitution away from a drive system, and enables the progress of an assembly and a disassembly work despite of priority order thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applicable to external gates for buildings, particularly garage doors.

[Conventional technology]

When the revolving lift door is opened and closed, the lower edge of the shield does not have a trajectory that protrudes toward the road, and the door opens and closes along a nearly vertical trajectory as far as it goes from the lower edge, making effective use of the land. JP-A-61-106882, JP-A-61-12
No. 6287, patent application No. 63-158451 by Junto Honde
It has been proposed as a number.

[Problem to be solved by the invention]

A technical object of the present invention is to provide a direct-lift rotary lift door having a structure that is different from the conventional direct-lift rotary lift door and whose structure is easy to disassemble and assemble.

[! ! Means and Embodiments for Solving the Problems] To describe the configuration of an embodiment of the direct lift rotary lift door according to the present invention in terms of sections, there is a door near the 2nd side edge of 91, which intersects with the main surface of 3rd door. One end of the support arms 21 and 22 is attached in the direction of Fulcrum 41・
42 are each pivoted, and when the shield 1 is lowered and the main surface of the door is vertical, the door is at the closing limit, and when the shield 1 is raised and the main surface of the door is horizontal, the door is at the opening limit. In the rotary elevator door, the rf11 and the one end of the support arms 21 and 22 are attached to the first pivot axis Y parallel to the axis X.
A driving wheel P that moves at approximately twice the rotational speed of the support arms 21 and 22 with respect to the axis X is attached to a third pivot shaft parallel to the axis X at an intermediate portion of the support arms 21 and 22. N, and on the other hand, a second pivot Z parallel to the axis X is arranged at a position different from the first pivot Y on the side edge of the shield L, and A piece with both ends pivoted on the driving wheel P so as to substantially define one tangential direction of the driving wheel P:
When the support arms 21 and 22 rise from the closed end to the open door, the moving linking rods 21a and 22a are engaged, and the direction of rotation of the driving wheel P is determined by the swinging linking rods 21a and 22a when the support arms 21 and 22 rise from the closed end to the open door.
The structure is characterized in that 2a is towed inward of the property. In addition, the rotation stroke of door 1 is approximately 90"
For the sake of clarity, the stopper that limits the range of rfll and the biasing spring that offsets the gravitational moment of rfll are not shown. Further, 31 and 32 are columns that support the shaft supports 41 and 42 on the ground surface.

The second digit 2.1 of the number 7 used in this specification indicates the left and right sides of the support arm system, and although some are not shown, they appear the same as those of other systems.

[Effect]

Since the present invention has the above configuration, when the support arms 21 and 22 are rotated in the upward direction about the axis X from the jump limit, the driving wheels P automatically start rotating at double speed. The specific rotating means of the driving wheel P is coaxial with the axis
A gear is fixedly arranged for 2, and the driving wheel P is connected to 1 of this gear.
Known transmission means can be applied, such as direct connection as a /2 diameter gear or chain drive. On the other hand, since the floating link rods 21a and 22a are engaged so as to be drawn toward the axis It will rise vertically. When the rotation angle of the support arms 21 and 22 reaches 45 degrees, the driving wheel P rotates 90 degrees, and the mounting angle of ff1l with respect to the support arms 21 and 22 becomes the most acute angle.After that, the mounting angle changes again when the opening limit is reached. returns to 90° (rR, 1 is il!! horizontal to the table). The operation from the open door limit to the closed door limit is a reverse operation to that described above. The diameter of the driving wheel P and the length of the floating link rods 21a and 22a may be determined based on the fact that ml becomes vertical at the closing limit. Also, the rotation angle of the support arms 21 and 22 is 90°.
Therefore, the minimum cost of the gear is 174 yen or 1l2 yen. If the driving wheel P is set to rotate slightly in a row from 1801, it is possible to move around the droop caused by the play of the door 1 at the opening limit.

〔Effect of the invention〕

According to the present invention, the drive system for varying the mounting angle of rRl with respect to the support arms 21 and 22, for example, the floating link 21a and
22a, driving wheels P, support arms 21 and 22, fixed gears, pillars 31 and 32, etc. are W! Since the drive system can be assembled and removed in the assembly relationship, and regardless of who is involved in the assembly process, this is advantageous in terms of the erecting process, packaging, and maintenance. .

Hereinafter, the inventions according to claims 2 to 4 will be described, but the [industrial application field] and [prior art] are the same as described above (for the invention according to claim 2,
Claim 1 regarding its technical problem and effects! all
It is the same as the invention of ).

Regarding another embodiment of the invention set forth in claim 1, although the driving wheels P are simply extended from the support arms 21 and 22 via other members, or simply widened, the driving wheels P are ultimately The loading position of the driving wheel P is supported in the invention as claimed in claim 1, which can be considered as a direct lift rotary elevator door as claimed in claim 1, which is loaded on a member integrated with the arms 21 and 22. It is not necessarily an absolute condition that the support arms 21 and 22 be located at the middle positions of the arms 21 and 22, but when the support arms 21 and 22 are considered as necessary and sufficient stress members for supporting the shield 1 with respect to the pivot points 41 and 42,
It is just a condition that happens to apply. Therefore, unless constrained by the necessary and sufficient stress members, the support arm 2
1 and 22 can be freely extended, deformed, or integrally connected with other members, and even if the driving wheel P is loaded on the extended portion, the same effect as the invention described in claim 1 can be achieved. is self-evident.

The invention of claim 3 will be described below.

[Invention tries to solve! ! The technical problem of the present invention is to provide a specific measure for maintaining the horizontality of ml in the interrogation limit in the invention according to claim 1 or 2.

[! ! Means and Embodiments for Solving the Problems] The structure of an embodiment of the direct lift rotary lift door according to the present invention will be described with reference to the drawings.
The direction of the torque is in the direction that urges the lower stile of the lock 1 vertically upward at the end of the beak, and the engagement position is between the above-mentioned Fil and the support arm 21 (22). The structure is characterized by being loaded with combined ammunition.

[Effect]

Since the present invention has the above-described structure, when the skin l is opened from the closed rl limit, the support arm 21 and sl are moved up to the middle of the journey by the action of the driving wheel P and the floating linkage rods 21a and 22a.
22 while decreasing the main angle of attachment of ml. This means compressing and biasing the bullet (for example, a torsion spring or a coil spring) engaged between the anchor 1 and the support arm 21 (22), so this leap operation The force becomes a little heavier, but it is not so much as to be of concern.After the middle stroke, the installation angle of the door returns to the 90° direction, so the bullet also releases energy, and after the middle stroke, the rM of St. This contributes to reducing the force required to operate the door, but in addition, the center of gravity of the door 1 at the opening limit is 1° with respect to the first axis Y.
If a gravitational moment remains in the direction in which the lower stile of 11 approaches the ground surface (i.e., if Ill tends to sag at the leap m limit), the energy released by the above-mentioned bullet will suppress the sagging of the shield l. This will effectively affect the direction. The engagement position of the ammunition is 11 and support arm 21 (22)
The effect is the same not only between sl and the floating link 21a (22a).

〔Effect of the invention〕

According to the present invention, the center of gravity of the door l and the first axis Y etc. are 6
In the case where the ammunition is separated, the structure is such that the ammunition is loaded around the first axis Y (or the second axis Z), so that the biasing force of the ammunition prevents Ill from hanging down at the leap gate limit. It is possible to provide a direct-lift rotating lift door that can be completely horizontally opened.

The invention according to claim 4 will be described below.

[Problem to be solved by the invention]

The technical problem of the present invention is to provide a direct lift rotary lift door which reduces the loss occurring in a part of the opening/closing operation force of the fill, and at the same time has increased durability. . In general, the operating force for closing a direct lift rotary lift door of the type in which the installation angle between +31 and the support arm 21 (22) is variable is: ■ The force mainly due to the fluctuation of the potential energy of 111 ■ rR1 A total force is required to change the relative relationship (mounting angle) of the support arms 21 (22).

In the closed (pause) rR limit, riil and support arm 21 (
22) Since the position of use with Y does not change, that is, it is the same as when the first pivot Y is fixed, it is desirable that the force (2) is extremely small, and the larger this force is, the more R
tI! This is because unnecessary and undesirable Ti output increases.

).

[Means and Embodiments for Solving the Problems] The structure of an embodiment of the direct lift rotary lift door according to the present invention will be described with reference to a drawing.
The structure is characterized in that it is disposed at approximately the same height as the center of gravity in the side view of the door 1 at the shield limit.

[Effect]

Since the present invention has the above configuration, it can be understood that the center of gravity of the door 1 does not exhibit a strong cupping moment with respect to the first axis Y throughout the entire process of opening and closing the shield 1. (RT means that the operating force required to change the mounting angle between Ijtl and the support arm 21 (22) is extremely small, reducing unnecessary friction loss and ultimately reducing the overall operating force for opening and closing the door 1. The height of the center of gravity of 11 and the first axis Y in the side view of the lock limit is the same as that of the direct lift/lower rotating lift door, which has reduced weight and at the same time has less wear and tear on parts and increased durability. There is no reason why the heights must be strictly the same, and the range where the internal stress and friction loss of the floating link rod 21a (22a) do not pose a problem is within the same height range.

〔Effect of the invention〕

According to the present invention, since the first pivot Y is arranged at the same height as the center of gravity of the door at the closed 5f limit, the gravity of the skin 1 is applied to the floating link 21a and It is possible to obtain a rotary lift door that does not apply strong stress to the door 22a, that is, has a light operating force for opening and closing the gate 1, and is durable.

[Brief explanation of drawings]

FIGS. 1(a) and 1(b) are a side view and a perspective view of an example of a conventional direct-lift rotary lift 1, and FIG. 2 is a side view of an embodiment of a direct-lift rotary lift door according to the present invention. 1 ・ ・ ・ ・ ・ Doors 21, 22, fist support arms 21a, 22a, floating link X, shafts 41, 421, legs, shaft support Y, . . . First axis Z... ・Second axis N... Third axis P-Fist... ...Driving wheel

Claims (4)

[Claims] (1) One end of each support arm is attached near the second side edge of the door in a direction intersecting the main surface of the door, and the other ends of the support arms are connected perpendicularly to the side surface of the burial mound. When the door is lowered and the main surface of the door is vertical, it is at the closing limit, and when the door is raised and the main surface of the door is vertical, the door is at its closing limit. In a rotating elevator door that is configured to be opened only when the door is horizontal, the door and the one end of the support arm are attached to each other by a pivot engagement using a first pivot parallel to the axis; A driving wheel that moves at approximately twice the rotation speed of the support arm with respect to the shaft is loaded at the intermediate portion of the support arm via a third pivot parallel to the shaft, while A second pivot parallel to the axis is disposed at a different position from the first pivot, and both ends are pivoted on the driving wheel P so as to substantially partition one tangential direction of the driving wheel from the second pivot. The idle linking rod is engaged, and the rotating direction of the driving wheel is the direction in which the floating link is pulled inward of the property when the support arm rises from the closed door limit toward the open door. A direct-lift rotating elevator door. (2) Although the driving wheel is simply extended from the support arm or through another member, or is simply widened, it is ultimately loaded on a member that is integrated with the support arm. The direct-lift rotary elevator door according to claim 1. (3) A torque is generated with respect to the first pivot, and the direction of the torque is a direction that urges the lower stile of the door vertically upward at the door opening limit, and the engagement position is between the door and the support arm or 3. The direct-lift rotary elevator door according to claim 1, wherein the vertical lift door is loaded with an ammunition that is engaged across the floating linkage. (4) The direct-lift rotary elevator door according to claim 1 or 2, wherein the first pivot is disposed at approximately the same height as the center of gravity in a side view of the door in the closed limit.