JPH028486A - Slide door closer - Google Patents

Abstract

PURPOSE:To prevent the occurrence of trouble by suppressing the shaking of wires by providing a wire guide near a position sensor consisting of a permanent magnet, a lead switch, and a shield cover, provided on a necessary place of a slide door-driving wire. CONSTITUTION:Permanent magnets 51a and 51b and a lead switch are set oppositely on necessary places of a drive wire 30 to operate a slide door by means of a drive motor 5, and a shield bar 52 is set between the magnets 51a and 51b and the lead switch to make a position sensor. A wire guide 55 with a wire hole 55a is set on the central part near the position sensor, and the wire 30 is put through the guide 55. The peripheral side of the wire 30 is slidably contacted with a permanent magnet board as a seamless base plate 57, and the bar 52 is attracted by the magnets 51a and 51b to prevent the shaking of the wire.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sliding door closer that electrically closes a sliding door.

[Conventional technology] Conventionally, this type of sliding door closer that closes sliding doors electrically
The drive motor of the electric opening/closing means is controlled based on the output of the position detection means for detecting the position of the sliding door, and this position detection means consists of permanent magnets and reed switch and
It consisted of a reed switch installed at key points on the drive wire, and a shield bar made of a magnetic material that could be inserted between permanent magnets.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional example, a shield bar made of a magnetic material can be freely inserted into the opening between the permanent magnet and the reed switch, which are arranged facing each other, to detect the position. There are, but
There was a problem in that the shield bar was sometimes attracted and caught by the permanent magnet, and troubles were likely to occur in the position detection section due to the drive wire swinging toward the permanent magnet.

The present invention has been made in view of the above points, and its purpose is to prevent troubles in the position detection unit caused by the shield bar being attracted to the permanent magnet and the drive wire swinging. Our goal is to provide sliding door closers.

[Means for Solving the Problems] The sliding door closer of the present invention includes an electric door closing means for closing an opened sliding door using a drive wire driven by a drive motor, and a position detection device for detecting the position of the sliding door. and a closing control means for automatically closing the sliding door by controlling the electric door closing means based on the output of the position detection means, and permanent magnets are arranged oppositely on both sides of the drive wire at an appropriate interval. and a sliding door closer in which the position detecting means is formed by a reed switch and a shield bar made of a magnetic material that can be inserted between the reed switch and the permanent magnet, which is provided at a key point of the drive wire, and a wire insertion hole in the center. A disk-shaped wire guide through which the drive wire is inserted and whose peripheral surface slides against the permanent magnet arrangement plate to prevent the wire from swinging is provided near the position detection means.

[Function] The present invention is configured as described above, and includes a permanent magnet and a reed switch that are arranged facing each other at an appropriate interval on both sides of a drive wire that drives the sliding door, and a reed switch that is provided at key points of the drive wire. In a sliding door closer in which the position detecting means is formed by a bar and a seal made of a magnetic material that can be freely inserted between permanent magnets, a drive wire is inserted through a wire insertion hole in the center, and the peripheral surface slides on a permanent magnet arrangement plate. A disk-shaped wire guide that comes in contact with the drive wire and prevents the wire from swinging is provided near the position detection means, thereby preventing trouble at the position detection unit due to the shield bar being attracted to the permanent magnet and the drive wire swinging. is now possible.

[Embodiment 1] Fig. 1 shows a schematic configuration of an embodiment of the present invention, which includes an electric opening/closing means 2 that opens and closes a sliding door 1 using a drive motor 5, and an electric opening/closing means 2 that operates after a predetermined time after the door is opened. The sliding door 1 is provided with an opening/closing control means 3 for automatically closing the sliding door 1. Here, the opening/closing control means 3 controls the position of the sliding door 1 (opening door,
The motor current flowing through the drive motor 5 is excessive (overload condition!!). a current detection circuit 12 that detects whether the
It is formed by a determination control section 13 that forms and outputs an opening/closing control signal for the sliding door 1 based on each circuit output, and a drive circuit 14 that drives the drive motor 5 based on the opening/closing control signal. When a door opening operation signal is output from the operation unit 4, this door opening operation signal and the position detection means 1
0 output, timer circuit 11 output, and current detection circuit 12
The drive motor 5 is operated in the forward direction based on the output, but it is determined whether to operate in the reverse direction and an opening/closing control signal is created, and the drive motor 5 is operated in a predetermined direction via the drive circuit 1a to rotate the sliding door 1. The door is designed to open or close. In addition, the electric opening/closing means 2 and the opening/closing control means 3 of the embodiment have a door opening function in addition to a closing function.
The automatic opening and closing of the sliding door 1 is enabled.

Figure 3 (, ) shows the operation unit 6 with built-in intercom device, and the intercom handset 20 is on the left side.
and an indoor call push button 21 are arranged, and in the upper part of the center there are operating parts 4a, 4. +) is provided,
Each operation section 4a, 4b includes an automatic lock changeover switch 23a, a lock/unlock switch 23I), a warning set/reset switch 23c, an open door indicator light 24a, an unlock indicator light 24)), and a warning display. It is formed by a light 24c. 1
A power indicator light 24.
d. Battery check switch 23d with built-in indicator light, volume control volume 25, speaker 26 that generates door opening notification sound, etc., outside or C] Electronic unlocking device that unlocks the electric lock by inputting a password using a secret switch. A password setting section 27 for setting a password is provided. 8
FIG. 3 (1) shows the automatic/manual switching unit 22, which is formed by an automatic/manual switching switch 22R and an automatic/manual indicator lamp 22b.

Figures 4 to 7 show the electric opening/closing means 2 housed in the blind 1b, with coil springs 3 at both ends for preventing loosening.
1, and a pair of pulleys 35a, 35b on which the drive wire 30 is stretched. , a reduction mechanism section 36 with a clutch that transmits the rotation of the drive motor 5 to one pulley 35n.
It is made up of. This clutch-equipped speed reduction mechanism section 36
is a pinion 37 attached to the motor shaft of the drive motor 5.
．． and a reduction mechanism consisting of gears 372 to 376, gears 373, 37 .
and a clutch mechanism consisting of a DC solenoid 39, and when the solenoid 39 is energized, a leaf spring 41 attached to an armature 40 is activated by a gear 37.
The shaft of the drive motor 5 is pressed downward, the gears 373 and 374 mesh with each other, and the rotation of the drive motor 5 is transmitted to the drive pulley 35a via the gears 371 to 376. In the figure,
43 is the -1 base plate, 44 is the base plate, and 45 is the mounting plate for the bearing.Since a large load is applied to the shaft of 35a, both ends are held by bearings 46a and 461. There is.

Further, the reed switches 50a and 50b are position detection means 10 that detects the position of the sliding door 1 in the vicinity of the closed position (5c+n before closing), and the reed switch 50a.

50I], permanent magnets 51 are arranged facing each other at appropriate intervals, and a shield bar 52 made of a magnetic material attached to the drive wire 30 connects the reed switches 50a, 50b,
Permanent magnet 51. a, 51. to be inserted between b (
This turns off the reed switches 50a and 50b, allowing position detection.

50c is a reed switch that detects when the sliding door 1 is fully open, and when the shield bar 521 blocks the magnetic field and turns it off, it detects that the sliding door 1 has been opened to the curfew limit. be.

Further, the drive wire 30 has a wire insertion hole 55a formed in the center thereof, and is provided with a disk-shaped wire guide 55 to prevent the drive wire from swinging. Mume 1b which is a magnet arrangement plate
Since it comes into sliding contact with the lower plate 57 of the sliding door 1, the shield par 52 made of a magnetic material is attracted to the permanent magnet 51 side when the sliding door 1 is opened and closed, and the end of the shield par 52 is caught on the permanent magnet 51. Preventing trouble.

The wire guide 55 is made of polyacetal resin, and the drive wire 30 is inserted through the wire insertion hole 55a in the center, and the reed switches 50a, 50
A notch 57 provided in the printed circuit board 56 on which b is mounted.
It can be moved freely within. In the embodiment, the permanent magnets 50a and 50b are attached to the lower plate 58 of the blind 1b by an auxiliary installation plate 56a, and the auxiliary installation plate 56a also has a notch 57a for restricting the movement of the wire guide 55. is provided.

FIGS. 8(a) and 8(b) show an electric lock main body 60 attached to the door frame 1a and an electric lock door end lock 61 attached to the door frame abutting surface of the sliding door 1, and the electric lock main body 60 The key holder is provided with a hole 63 to which the key piece 62 of the door lock 61 is engaged, and a lock/unlock confirmation switch (not shown) is provided in the hole 63 of the key holder. . Further, the electric lock main body 60 is provided with a locking/unlocking control mechanism (not shown) that is driven by a locking/unlocking signal and has a locking/unlocking piece that can freely protrude from the hole 64 at both ends. Furthermore, a trigger 65 for a closing door confirmation switch (opening confirmation switch) is provided, and by pushing this trigger 65 on the end face of the sliding door 1, the door closing confirmation switch (or opening confirmation switch) is turned on. A door closing confirmation signal is output when the door closes.

On the other hand, a lock/unlock knob 67 is provided in the recess of the handle 66 of the sliding door 1, and by lowering the lock/unlock knob 67, the key piece 62 is retracted and unlocked.
By lifting the unlocking knob 67, the key piece 62 protrudes and the door is locked.

+J ノ, below, the operation of the embodiment will be explained. FIG. 2 is a 70-chart showing the operation. When the automatic/manual switching switch 22a is set to 1 automatic, the unlock/lock switch 431 is pressed or the handle of the sliding door 1 is pressed. When an unlocking operation is performed using the locking/unlocking knob 67 provided at 66, an opening operation signal is input to the determination control section 13 of the opening/closing control means 3, and the sliding door 1 is driven in the opening direction. An opening/closing control signal that controls the drive motor 5 (for example, normal rotation control) is output, and the drive motor 5 is driven via the drive circuit 14 to electrically open the sliding door 1. Next, when the output of the timer circuit 11 that operates from the time when the sliding door 1 starts opening (when the closing confirmation switch is turned off) is obtained, the drive motor 5 is controlled to drive the sliding door 1 in the closing direction (for example, , reverse control) is output from the determination control section 13, and the drive motor 5 is driven via the drive circuit 14 to automatically close the sliding door 1 electrically.

By the way, the opening/closing control means 3 includes an emergency stop that stops the closing operation of the sliding door 1 and holds the sliding door 1 in a fully open state if the closing operation of the sliding door 1 is blocked during the closing operation of the sliding door 1. In the embodiment, it is detected that the drive motor 5 has become overloaded and the motor current has increased, and it is determined that an abnormality has occurred in the door closing operation. It is designed to stop the door closing operation. That is, when the motor current of the drive motor 5 exceeds a predetermined value, the current detection circuit 12 outputs an abnormality detection signal, assuming that the door closing operation is blocked and an overload condition has occurred. Upon receiving the determination, the determination control unit 13 immediately stops the door closing operation and outputs an opening/closing control signal that reverses the drive motor 5 to drive the sliding door 1 in the opening direction and stop it at the fully open position (eye open position). It looks like this. Therefore, even if a person is caught between the sliding door 1 and the door frame 1a during the door closing operation, the danger of remaining caught can be avoided, and safety can be ensured. In this case, when the sliding door 1, which is stopped in the fully open state, is pulled back by a predetermined distance y (for example, about 5c+n) in the closing direction, the reed switch 55c is turned on, and the reed switch 55c is reversed (off- ON), the door closing operation is started again, and the drive motor 5 is driven in the door closing direction to close the sliding door 1.
The door is closed electrically.

In addition, when the automatic locking changeover switch 23a is set to ``1 person'', the electric lock is automatically unlocked or locked when the sliding door 1 is opened or closed. '', it is necessary to manually lock/unlock the door using the lock/unlock switch 23b or the lock/unlock knob 67 when closing the door.

Next, when the automatic/manual changeover switch 22a is set to "manual", the sliding door 1 can be opened and closed manually, and at this time, the opening of the sliding door 1 is set to the closing confirmation switch. When the sliding door 1 is detected, the timer circuit 12 is operated, and the manually opened sliding door 1 is automatically closed electrically after a predetermined period of time set by the timer circuit 12. However, when the sliding door 1 is opened to the point where it is close to being opened (in the embodiment, when it is opened more than 2c+n before the opening door detection reed switch 55c operates), the automatic door closing operation is not performed. As a result, the sliding door 1 is kept fully open. To close this fully open sliding door 1,
After keeping the sliding door fully open for about 15 seconds, when the sliding door 1 is opened and pulled back by a predetermined distance (for example, 5c (0 or more)), the reed switch 55c is reversed and the automatic door closing operation is started. 1 is electrically closed by the drive motor 5.

Next, press the alert set/reset switch 23c to
! When the warning function is set, when the sliding door 1 is forcibly opened in the locked state, an alarm sound is generated for a certain period of time (for example, 5 minutes) to notify that an abnormality has occurred. In addition, to stop the alarm sound that notifies you of an abnormality,
The alert function can be reset by pressing the alert set/reset switch 23c again.

[Effects of the Invention] The present invention is configured as described above, and includes a permanent magnet and a reed switch which are arranged facing each other at an appropriate distance on both sides of the drive wire that drives the sliding door, and which are provided at important points on the drive wire. In the sliding door closer, the position detecting means is formed by a reed switch and a shield bar made of a magnetic material that can be inserted freely between the permanent magnets, and the drive wire is inserted through the wire insertion hole in the center, and the peripheral surface is arranged with the permanent magnets. A disk-shaped wire guide that slides against the plate and prevents the wire from swinging is installed near the position detection means, which prevents problems in the position detection unit caused by the shield bar being attracted to the permanent magnet and the drive wire swinging. It has the effect of being able to prevent this.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of the present invention;
Fig. 2 is an explanatory diagram of the operation of the above, Fig. 3 (a) and (b) are front views of the main parts of the same, Fig. 4 is a front view of the same, and Fig. 5 is the same.
Figure 6 is an exploded perspective view of the main part of L, Figure 6 is a top view of the main part of the same as above, and Figure 7 is
The figure is a front view of the main part same as above, and FIG. 8(,)(b) is a perspective view of main part same as above. 1 is a sliding door, 2 is an electric opening/closing means, 3 is an opening/closing control means, 4 is an operating section, and 5 is a drive motor. Agent Patent Attorney Ishi 1) Ai Shichi (b)

Claims (1)

[Claims] (1) An electric door closing means that closes the opened sliding door using a drive wire driven by a drive motor, a position detection means that detects the position of the sliding door, and an electric door closing means based on the output of the position detection means. a closing control means for automatically closing the sliding door by controlling the sliding door;
In a sliding door closer in which the position detection means is formed by a reed switch provided at a key point of the drive wire and a shield bar made of a magnetic material that can be freely inserted between permanent magnets, the drive wire is inserted through the wire insertion hole in the center. A sliding door closer characterized in that a disk-shaped wire guide whose peripheral surface slides on a permanent magnet arrangement plate to prevent the wire from swinging is provided in the vicinity of a position detection means.