JPS63206586A - Electric manual revolving lifting door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

[Conventional technology]

Various electrically driven rotary lift doors have been proposed, but the drawback is that it is possible to select between electrically driven and manual doors at any time. Electric operation is mainly performed by a remote control device □ from the driver inside the car, and when someone is near the door, switching to the remote control device and manually opening and closing the door is not a big burden on the operator if the operating force is light. Not only is this not a problem, but it is preferable from an energy-saving perspective (generally, the operating force of a revolving lift door is controlled by a spring that reduces the gravity of the door, and manual operation is such that you do not feel the weight of the door. (Usually, it is reduced to below.) Furthermore, if the output of the electric motor M is configured only by mesh transmission, there is a risk that the transmission system will be destroyed by external restraining force on the door while the door is operating. For this reason, it has been proposed to install a clutch or the like in a part of the transmission path, but in reality, a clutch that follows in the case of a drive and slips in the case of a manual is complicated.
Requires precision.

[Problem that the invention seeks to solve]

The technical problem of the present invention is to obtain a rotary elevator door driven by electric and manual drives with a simple mechanism.

[Means and Embodiments for Solving Problems] The configuration of an embodiment of the electric manual rotary lift door according to the present invention will be described with reference to a drawing. When the door is closed, the door 1 is vertical at the bottom, and when the door is closed, the above-mentioned s1 is vertical. A support lever 21 that supports the door 1 relative to the rotation axis X of the door 1 in a rotating lift door that is horizontal at
Part 21 a (22a) of (22), part 2]
The electric drive shaft 61 (and/or 62) reciprocates in the same direction locally as the trajectory of a (22a) (which may also be regarded as the direction of the chord connecting the starting and ending ends of the trajectory 6) and approximately twice as much. The structure is characterized in that the engaging portion is provided with a play T corresponding to substantially the entire stroke of the trajectory in the same direction as the reciprocating movement. In addition, 31.32
is a column that supports the rotation axis X of the door 1 on the ground surface, M is an electric motor, 61a and 61b are inner gap distances, that is, play T, and the reciprocating direction (vertical direction in the example) of the electric drive shaft 61 (62). This is a U-shaped locking piece arranged in the same direction as the Further, digits 2 and 1 of the reference numerals used in this specification indicate the left and right sides of the support lever system, and although there are some not shown, they appear the same as those of other systems. A spring for offsetting the gravity of the rotating parts such as the door 1 and a stopper for limiting the rotational stroke of the door 1 are also separately provided, but are not shown for the sake of clarity.

Since the present invention has the above configuration, in the case of electric drive, when a rotation command is given to the electric motor M by remote control from inside the vehicle, the electric drive shaft 61 (62) starts to rise or fall. Therefore, one end 21a (22a) of the support lever 21 (22) is indexed downward or pressed upward by the locking pieces 61a, 61b (62a, 62b), and eventually the support lever 21 (22) begins to rotate, and the sl. When the door is closed (opened), it starts moving toward the open (closed) door. Naturally, since this is just a relative relationship, the play T at the engagement portion is the support lever 21 (
22) side or the electric drive shaft 61 (62) side. If you want to operate the electric drive shaft manually instead of using electric drive, move the electric drive shaft 61 (62) in advance at a position where the play T of the electric drive shaft 61 (62) and the entire trajectory of the one end 21a (22a) of the support lever 21 (22) overlap. If the door 1 is stopped, the door 1 can be opened and closed by manual operation immediately.

In other words, in this case, one part 121a of the supporting bar 21 has a play T
Since the transmission system with the locking pieces 61a and 61b will be cut off simply by moving inside the locking pieces 61a and 61b, it can be considered that the existence of the electric drive system is completely ignored (see Figure 2). This is the position of the electric drive shaft 61.) Specifically, the means for selecting the stop position of the electric drive shaft 61 is to sequentially issue a command to select the opposite state after closing or opening the door by electric drive, and the play T in the engagement portion is consumed and the door is closed or opened. It is sufficient to stop the electric drive immediately before starting the operation. In reality, even in cases where only manual operation is required, the rotating parts such as the door 1 are usually provided with an articulation mechanism (a spring catch, etc.) that preserves its state in the closed or opened limits. Therefore, the electric drive shaft 61
The selection of the position (FIG. 2) can be carried out stably without much difficulty. Of course, the position of the electric drive shaft 61 in FIG.
It can be seen as 2. ) may be automatically selected electronically.

Even during manual operation, it is dangerous for the kinetic energy of rotating parts such as the door 1 to increase excessively, so it is desirable to provide an appropriate braking mechanism (for example, a friction brake). Of course, if the electric drive is to be performed on another occasion after the manual mechanism, rRl will not operate immediately even when the electric motor M starts rotating, and either the locking piece 61a or 61b will not move the support lever 21.
The rotational movement starts only after contact with the one end 21a-5=, and there will be a slight time difference, but this is not a problem in practical terms.

The electric drive mechanism/mechanism is the same as the linear drive using a known screw mechanism or the like, as well as a reciprocating rotation mechanism.

〔Effect of the invention〕

According to the present invention, an electric manual rotary lift door can be obtained with a simple structure without incorporating a complicated or precise latch.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional perspective view of a main part of an embodiment of the electric manual rotary lift door according to the present invention, Fig. 2 is an enlarged side view of Fig. 1, and Fig. 3 is (1), (2), (3). ) is an operation explanatory diagram focusing on the operating positions of the electric drive shaft at the upper limit, manual mode, and lower limit, respectively. 1...Door・・・Electric drive shaft T・・・・・・・・・play

Claims (2)

[Claims] (1) In a rotating lift door in which the door is vertical at the bottom when closed and horizontal at the top when opened, a part of the support lever that supports the door with respect to the rotation axis of the door is attached to the Locally, the electric drive shaft engages with an electric drive shaft that reciprocates in the same direction as the locus of the part and approximately double the amount, and the engagement part has a play corresponding to approximately the entire stroke of the locus as compared to the reciprocating motion. An electric manual rotating lift door characterized by being arranged in the same direction. (2) After the door reaches the closing limit or opening limit due to electric drive, the electric drive shaft automatically selects and saves approximately 1/2 of the total travel distance of the electric drive shaft and ends the drive. 2. The electric manual rotary lift door according to item 1, characterized in that: