JPH0562187B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a door opening/closing device that opens only toward the front from either side.

[Prior art] Until now, when double doors have been used for partitions in factories, etc., doors that open on the other side of the door may cause damage to the door when people or parts are being transported on the other side of the door. Contact could result in injury or damage to parts.

For this reason, although not shown in the drawings, doors have been adopted that have windows made of transparent or translucent glass so that the other side can be seen, but this poses problems in terms of fire protection and confidentiality. Further, as shown in FIG. 6, a door 60 that opens only on the front side may be used. That is, this is a case in which a contact piece 63 is provided on the vertical frame 62 of a fixed frame 61 that forms the entrance/exit of a partition installed in a factory to restrict the rotation of the door 60 by projecting in a band shape, or as shown in FIG. As shown, a case is known in which a contact piece 72 is provided on the vertical frame 71 itself of a door 70 to provide the same function as described above.

[Problems to be Solved by the Invention] In the conventional example shown in FIGS. 6 and 7, a contact piece for regulating the opening/closing direction of the door is provided protruding from the fixed frame of the doorway or the vertical frame of the door. Although the door is designed to open in one direction, it has a single door that opens and closes in only one direction.

Therefore, even if the door opens toward you on the outbound trip, it is necessary to open it toward the other side on the return trip, and the problem of the door hitting people or goods passing through the door remains unresolved.

Therefore, the present invention provides a double door opening/closing device that can open and close the door from either side only to the front side by driving a latch using a rotation mechanism that combines a plurality of gears. .

[Means for Solving the Problems] The present invention has two latches arranged above and below the locking position with their respective slopes facing in opposite directions, so that the door can be opened only from the front side from either side of the door. It is a double-hung door, and a receiving bracket is fixed to the vertical frame of the entrance, which has a pair of upper and lower fitting recesses with an opening corresponding to the non-drive side latch on the same side as the handle to be operated. On the inside of the mounting seat fixed to the front panel of the door, there are a gear rotated by the rotating shaft of the handle placed on both sides of the door, an intermediate gear of the next stage, an output gear, and their supporting shafts. A rotating mechanism is installed,
This opening/closing device for a double door is characterized in that the latch reciprocating mechanism that reciprocates the latch is driven by the rotation mechanism to engage and disengage the latch and the fitting recess.

The latch reciprocating mechanism includes a wheel fixed to the shaft of the output gear, a push rod rotated by a push piece fixed to the outer periphery of the wheel, and a push rod wound with a compression spring.
At the rear of the latch, a latch shaft having a flange at the rear end and a compression spring wound thereon is integrated, and an arm connects the push rod with an operating rod that slides along the wall surface of the guide frame. At the same time, an engagement piece bent at the tip of the operating rod locks the flange of the latch shaft.

Further, the latch reciprocating mechanism includes a pinion whose rotation center is fixed to the shaft of the output gear, a rack meshed with the pinion, and an engagement piece bent at the tip of the rack, Further, a latch shaft having a flange formed thereon and wound with a compression spring is disposed at the rear of the latch, and the above-mentioned engagement piece is locked to this flange.

[Operation] According to the present invention, when the handle is rotated clockwise, the input shaft fixed to the handle is rotated in the same direction. Next, an input spur gear pivotally supported on this shaft is rotated in the same direction, and an output gear is rotated clockwise via an intermediate gear meshing with the input spur gear.

An output shaft is separately attached to this output gear, and the rotation of this shaft drives the latch reciprocating mechanism to move the latch in the horizontal direction. Incidentally, in this latch reciprocating mechanism, a pair of wheels fixed to the output shaft are rotated by the rotation of the handle, and a pushing piece fixed to the wheels presses the end of the push rod located in front of the pair of wheels.
This push rod is moved forward (to the left in Figure 1) against the compression spring, and the arm is rotated in the direction shown by the movement of the push rod, and the operating rod is moved backward (to the left in Figure 1) against the compression spring. (right side in FIG. 1).

Next, the latch shaft is moved rearward by the engagement between the engagement piece and the flange, and the latch is released from the fitting recess of the receiving fitting.

Thereafter, when the handle is returned to its original state, the latch shaft and push rod are moved back to their original states by the compression springs.

On the other hand, in a latch reciprocating mechanism using a rack and pinion, which is a different embodiment from the above, the pinion is rotated by the rotation of the output gear, and the rack meshing with the pinion is laterally moved. Then, the latch shaft moves laterally against the compression spring while locking the flange with the engagement piece formed at the tip of the latch, and moves the latch horizontally to fit into the fitting recess. Take off your clothes.

[Examples] Next, the present invention will be described based on illustrated examples. Figure 1 shows a rotating mechanism
FIG.

The opening/closing device of the present invention has handles 3 and 3a arranged on both sides of a panel P that constitutes the surface of a door 1, and a pair of mounting seats 2 and 2a are fixed to this panel P by bolts B. There is. And this mounting seat 2,
An input shaft 5 having a handle 3 shown in FIG. 1 and a handle 3a shown on the left side of FIG. 2 fixed in the shaft hole 4 is disposed inside the input shaft 2a.

Next, gears 6, 6 are attached to the input shaft 5 of the rotation mechanism
A is attached to the gears 6, 6a, and in the vertical direction of the gears 6, 6a are intermediate gears 7, 8 with a slightly smaller diameter and output gears 9, 10 having the same diameter as the gears 6, 6a.
is installed.

And the shaft hole 11 of the output arrangement 9, 10,
A latch reciprocating mechanism Y consisting of wheels, push rods, etc. described below is disposed on the output shafts 13 and 14 which are pivotally attached to the output shafts 12 and 12, respectively. That is, wheels 15 and 16 are fixed to the output shafts 13 and 14, and fan-shaped pushing pieces 17 are provided protruding from the outer peripheries of the wheels 15 and 16.

Further, on the same line above and below the locking position C, there is a pair of latches 2 having slopes 20a and 21a.
0 and 21 are arranged with their respective slopes 20a and 21a facing in opposite directions, and the latches 20 and 21 are attached to a latch shaft 23 having a flange 22 formed at its rear end.

Furthermore, this latch shaft 23 is held by support plates 26, 26a which are separately arranged in guide frames 24, 24a and have a guide hole 25 bored in the center thereof, and which are attached to the latch 20 shown in FIG. A compression spring 27 is provided between the rear end and the support plate 26.

Note that the engagement piece 3 provided at the tip of the operating rod 30
0a is always engaged with the front end of the flange 22.

On the other hand, at one end of the push rod 32, which is moved horizontally by the pushing piece 17 and is provided with a compression spring 31, is an arm that has a support shaft 33a, which is the center of rotation, pivoted on the guide frame 24. 33 is attached, and the other end of this arm 33 is disposed within an engagement hole 30b bored in the operating rod 30.

Furthermore, the handle on the right side in Figure 2 is not shown in Figure 1, but as mentioned above, like the handle on the left side, it is provided with a shaft hole, an input shaft, and a gear, all of which are not shown. It meshes with 8.

Furthermore, as shown in FIG. 3, the latches 20, 2
A receiving metal fitting 42 into which the latches 1 are fitted is provided, and this receiving metal fitting 42 has a pair of upper and lower fittings, which have openings 43, 44 corresponding to the latches 20, 21 on the same side as the handles 3, 3a to be operated. Matching recesses 45 and 46 are provided.

As described above, the opening/closing device of the present invention has a rotation mechanism consisting of a gear that is interlocked with the left handle by rotating the left handle, and a latch reciprocating mechanism that is cooperated with this rotation mechanism. Of the latches protrudingly provided at two stages above and below the locked position, separated by an appropriate distance, only the upper one is moved.

The opening of the bracket has a roughly S-shape that opens only on the opposite side of the handle, so when the door is opened and closed, the lower latch remains engaged when pushed, so the opening on the other side is If it does not open, but is pulled forward, the lower latch will pass through the opening of the fitting recess, and the door will be opened from either side.

Furthermore, FIG. 5 shows another latch reciprocating mechanism Y1, which includes a pinion 50 whose rotation center is fixed to the output shaft 13 of the output gear 9, and this pinion 50.
A rack 51 that engages with the 0 is supported by a guide plate 52 and is disposed within a guide frame 53.

The above-mentioned rack 51 is equipped with an engaging piece 51a having a bent tip, and on the other hand, a flange 22 is similarly formed at the rear of the latch 20 having the same structure as described above, and a compression spring 51 is wound around it. Latch shaft 23
is disposed on this flange 22, and the engagement piece 30 is attached to this flange 22.
a is locked.

The rotation of the handle rotates the group of gears constituting the rotation mechanism, and in particular, the rotation of the pinion fixed to the shaft of the output gear drives the rack, and the engagement piece of the rack and Engagement with the flange translates the latch to open and close the door.

[Effects of the Invention] The present invention has a pair of latches placed above and below the locking position with their slopes facing in opposite directions, and the door can be opened only on the side where the handle is operated. Accidents such as coming into contact with people on the other side can be prevented. In addition, by using a rotation mechanism that combines a pair of latches arranged vertically at an appropriate distance and multiple gears, the rotation can be converted into reciprocating motion of the latch even when the handle is operated from either side. can. This rotation mechanism reduces the force required to rotate the handle, improving operability. Furthermore, in the receiving metal fitting, an opening is provided on the side in the door opening direction so that the latch on the non-operating side can be easily unlocked, thereby improving operability.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway cross-sectional view of the main part of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a plan view of the same, Fig. 4 is a side view showing the receiving metal fitting, and Fig. 5 is a side view of the same. A partially cutaway sectional view showing another latch reciprocating mechanism, and FIGS. 6 and 7 are plan views showing the relationship between the conventional fixed frame and the door. 1...Door, P...Panel, 2, 2a...Mounting seat, 3, 3a...Handle, 4...Shaft hole, 5...Input shaft, 6, 6a...Gear, 7, 8...Intermediate gear,
9, 10... Output gear, 11, 12... Shaft hole,
13, 14... Output shaft, 15, 16... Wheel, 17... Pushing piece, 20, 21... Latch, 2
2...Flange, 23...Latch shaft, 24, 24
a... Guide frame, 25... Guide hole, 26, 26a...
... Support plate, 27 ... Compression spring, 30 ... Operating rod,
30a...Engagement piece, 30b...Engagement hole, 32...
Pushyrod, 33...Arm.

Claims (1)

[Scope of Claims] 1. A double door that can be opened from either side of the door only to the front side, with latches arranged in two places above and below the locked position with their respective slopes facing in opposite directions, A bracket is fixed to the vertical frame of the doorway, which has a pair of upper and lower fitting recesses with an opening corresponding to the non-drive side latch on the same side as the handle to be operated. Inside the mounting seats fixed on both sides, there is a rotation mechanism consisting of a gear rotated by the rotation axis of the handle placed on both sides of the door, an intermediate gear of the next stage, an output gear, and their support shafts. An opening/closing device for a double door, characterized in that a latch reciprocating mechanism for reciprocating the latch is driven by the rotation mechanism to engage and disengage the latch and the fitting recess. 2. The latch reciprocating mechanism includes a wheel fixed to the shaft of an output gear, a push rod rotated by a push piece fixed to the outer periphery of the wheel and wound with a compression spring, and a latch. A latch shaft equipped with a flange at the rear end and wound with a compression spring is integrated at the rear of the latch shaft, and the push rod and an operating rod that slides along the wall surface of the guide frame are connected by an arm. 2. The double door opening/closing device according to claim 1, wherein the engaging piece bent at the tip of the operating rod engages the flange of the latch shaft. 3. The latch reciprocating mechanism includes a pinion fixed to the shaft of the output gear at the center of rotation, a rack meshed with the pinion, and an engagement piece bent at the tip of the rack, and further A double door according to claim 1, characterized in that a latch shaft having a flange and a compression spring wound thereon is disposed behind the latch, and the engaging piece is locked to this flange. switchgear.