JPH08319761A - Opening/closing mechanism - Google Patents

Abstract

PURPOSE: To facilitate the position adjustment of a switch by forming a rack integrally at a holding member mounted with the switch, engaging a pinion with the rack, and exposing a control shaft to the outside. CONSTITUTION: A rack 5-1 engaged with a pinion 10 for rotating a control shaft protruded from a case 12 moves, and switches 6, 7 provided at a switch holding member 5 move. When the control shaft is rotated clockwise, the switch 6 moves to the left so as to be separated from an operating member 8. A signal for driving a driving motor is thereby generated from the switch 6. and a push- pull chain 2 is put in such action as to be further taken into a mechanism part by the rotation of the driving motor so as to drive a load constituent body l, that is, a paper sliding door, further in a closing direction. The operating member 8 thereby comes close to the switch 6, and the driving motor stops. When the control shaft is rotated counterclockwise, the driving motor drives the paper sliding door in the opening direction and stops. The fine adjustment of the closing state of the paper sliding door can thereby be performed by rotating the control shaft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an opening / closing mechanism used in window opening / closing devices and the like, which are being widely used in household appliances.

[0002]

2. Description of the Related Art As described above, the opening / closing mechanism according to the present invention is increasingly used in window opening / closing devices as housing equipment.
Various proposals have been made to solve mounting problems in the example of the opening and closing mechanism of the skylight as shown in FIG. In FIG. 6, 51 is a window frame, 52 is a shoji that opens and closes around a fulcrum 53,
Reference numeral 2 is a push-pull chain that opens and closes the shoji 52, and 54 is a drive mechanism that advances and retracts the push-pull chain 2.
In such an opening / closing mechanism, Japanese Utility Model Publication No. 3-55736 is disclosed as an example of the configuration of the position detecting means at the start / end points of the opening / closing operation for controlling the opening / closing operation of the shoji 52. As an example of the prior art, FIG. 12 of the publication (FIG. 7 of the present invention) shows that a screw shaft 37, which is connected to a driving electric motor shaft together with a sprocket for driving a push-pull chain, is rotated to screw the screw shaft 37. By moving the combined runners 32, the movement of the runners 32 activates the microswitches 43 and 44 provided at predetermined positions. Further, as an improvement plan thereof, as shown in FIG. 1 to FIG. 8 of the publication, the switch 31 is fixed by the dog 33 corresponding to the runner of the above-mentioned example which is fixed to the push-pull chain which is the power transmission medium and integrally operates. The working arrangement is known in the art.

[0003]

The conventional configuration as described above, particularly in the second example described above, has high accuracy in the starting position and the stopping position, and solves the problems such as damage to the device due to overrun and imperfect closing. However, it is well known that the accuracy of housing-related equipment itself is lower than the processing accuracy of general machined members. It was pressed too much and left a problem even when the buffer member was used together.

[0004]

In the opening / closing mechanism according to the present invention, at least one of the pair of switches for obtaining a signal for stopping the driving electric motor is position-adjusted in the same direction as the operating direction of the push-pull chain. A rack is integrally formed on a holding member on which the switch is mounted, and a small gear that engages with the rack is provided side by side, and the position of the switch is adjusted by the engagement. The engaging small gear is configured to be connected to a knob shaft that penetrates the casing and is exposed to the outside.

[0005]

[Operation] In the above-mentioned configuration, a fine adjustment operation of the stop position of the drive motor is performed in order to absorb the position error in the closed state of the window opening / closing device in consideration of the accuracy level of the components of the housing equipment. Also, there is an effect that it can be easily performed from the outside of the outer casing even in the stage of the device installation state.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic front view showing an embodiment according to the present invention. For example, a push-pull chain 2 whose one end is fixed to a load structure 1 corresponding to a shoji 52 such as a skylight shown in FIG.
The chain guide (not shown) provided in the casing 12 is engaged with a pair of sprockets 3 and 3 arranged at an interval corresponding to a predetermined movement amount of the load component 1. , A configuration in which the load component 1 is driven by rotating one shaft of the sprocket 3 by a drive motor (not shown).

In FIG. 1, one end 2-1 of a push-pull chain 2 which is a driving force transmission medium is fixedly held by a load construct 1 to be driven, and the other end 2-2 of which is a sprocket 3, 3. It is held so that it can be displaced while being held by a chain guide (not shown). The push-pull chain 2 is provided with an operating member 8 at a displaceable end portion 2-2 for operating a switch for generating a signal for stopping the drive motor, and the push-pull chain 2 is folded back by the sprocket 3 to form a chain. Guide (not shown)
The switch holding member 5 is movably held in the moving direction of the push chain 2 in the space held in parallel by the switch holding member 5, and the switch 6 and the switch 6 are provided at a position facing the operation member 8 of the switch holding member 5. Switch 7 is provided at a position opposite to that, and a rack 5-1 is integrally provided at one end of the switch holding member 5, the pinion 10 is engaged with the rack 5-1 and the pinion 10 is rotated back and forth. The switch holding member 5 can be moved back and forth with respect to the traveling direction of the push-pull chain 2 via the rack 5-1.

FIG. 2 shows the switch holding member 5 of FIG. 1, a rack 5-1 provided integrally with the holding member, a pinion 10 for engaging with the rack, switches 6 and 7, and an end portion of the push-pull chain 2. 2-2 is an enlarged view showing the relationship with the operating member 8 provided in FIG. 2, FIG. 3 is an enlarged view seen from the direction of the arrow in FIG. 2, and switches 6 and 7 are provided on the upper end side surface of the holding member 5, The pinion 10 provided at the tip of a knob shaft 11 provided through the housing 12 is engaged with the rack 5-1 provided on the holding member 5, and the operation member 8 is connected to the switch 6. It is arranged at the opposite position.

FIGS. 4 and 5 are views for explaining the normal operation of the opening / closing mechanism according to the present invention. FIG. 4 shows a state in which the shoji, which is the load constructing body 1, is closed, and the push pull chain. 2 is a state in which the operating member 8 approaches the switch 6 provided in the switch holding member 5 in a state of being taken into the mechanism portion, and a signal for stopping the driving electric motor is transmitted from the switch 6 to stop the driving electric motor. It is in. Further, FIG. 5 shows a state in which the shoji, which is the load component 1, is open, and the push-pull chain 2 is almost pushed out from the mechanism portion, and the operating member 8 is provided with the switch 7 provided on the switch holding member 5. In this state, a signal for stopping the driving electric motor is transmitted from the switch 7 in the vicinity of, and the driving electric motor is stopped.

In FIG. 4, when the knob shaft 11 protruding from the housing 12 is rotated, the rack 5-1 engaged with the pinion 10 provided on the shaft 11 moves, and the switches 6 and 7 provided on the switch holding member 5 move. To do. When the knob shaft 11 is now rotated to the right, the switch 6 is moved to the left and separated from the operating member 8, so a signal for driving the drive motor is generated from the switch 6 and the push-pull chain 2 is further moved into the mechanical portion by the rotation of the drive motor. It operates so as to take in and drives the load component 1, that is, the shoji, in a direction to be further closed, and the operating member 8 causes the switch 6 to move.
Approaching to, a signal for stopping the driving electric motor is transmitted from the switch 6 and the driving electric motor is stopped. Also knob shaft 1
When 1 is rotated to the left, the drive motor drives the shoji to open and stops. That is, there is a feature that the knob shaft 11 can be rotated to easily adjust the tightening degree when the load component 1, that is, the shoji is closed, and the tightening of the switchgear installed at a high position like the skylight shown in FIG. The condition can be easily adjusted in the mounted state.

On the other hand, in the state shown in FIG. 5, even when the load component 1, that is, the shoji screen is opened, the knob shaft 11 is rotated to adjust the position of the switch 7 and open the shoji screen in the same manner as described above with reference to FIG. The position of the switch 7 can be finely adjusted, but the position of the switch 7 is not particularly adjusted because it is not necessary to strictly adjust the position when the shoji door is open.

In the example of FIG. 1 described above, the pair of switches 6 and 7 are integrally mounted on one holding member 5 as described above, but the pair of switches 6 and 7 are Only one of them may be movable, or each may be mounted on another holding member and adjusted and moved separately.

[0013]

The opening / closing mechanism according to the present invention allows the fine adjustment operation of the stop position for absorbing the error of the closed state of the window opening / closing device, etc., in consideration of the accuracy level of the components of the housing equipment. There is an effect that it can be easily performed even in the stage of installation.

[Brief description of drawings]

FIG. 1 is a schematic front view of an opening / closing mechanism according to the present invention.

FIG. 2 is an enlarged explanatory view of a holding member on which the pair of switches of the example of FIG. 1 are mounted.

FIG. 3 is an enlarged explanatory view seen from the direction of the arrow in FIG.

FIG. 4 is an operation explanatory view of the opening / closing mechanism according to the present invention, showing a state in which the load structure is closed.

FIG. 5 is an operation explanatory view of the opening / closing mechanism according to the present invention, showing a state in which the load structure is open.

FIG. 6 is a cross-sectional view showing an opening / closing mechanism of a skylight which is a load constituting member of the opening / closing mechanism according to the present invention.

FIG. 7 is a diagram showing an example of a position detecting device for an opening / closing mechanism according to a conventional technique.

[Explanation of symbols]

 1 load structure 2 push-pull chain 2-1 fixed part of push-pull chain 2-2 other end of push-pull chain 3 sprocket 5 switch holding member 5-1 rack formed integrally with holding member 6, 7 stop Switch 8 Operating member (switch operating dog) 10 Pinion for moving the switch holding member 11 Knob shaft protruding from the outer casing 12 Outer casing 32 Runner 37 Screw shaft 43,44 Micro switch 51 Window frame 52 Shoji 53 Shoji Fulcrum for rotation 54 Opening / closing drive mechanism 〓

Claims (6)

[Claims] 1. A driving electric motor, a sprocket rotatably driven by the electric motor, and a push-pull chain for driving a load connected by engagement of the sprocket.
In an opening / closing mechanism including an operation member provided at a predetermined position of the push-pull chain and a pair of switches that interlock with the operation member to obtain a signal for stopping the drive motor, at least one of the switches is An opening / closing mechanism in which the position can be freely adjusted in substantially the same direction as the operating direction of the push-pull chain. 2. The position-adjustable switch is configured such that both of the pairs that obtain a signal for stopping the drive motor simultaneously move integrally.
The opening / closing device according to claim 1. 3. The position-adjustable switch is configured such that a pair of switches that obtain a signal for stopping the drive motor are individually displaced.
The opening / closing device according to claim 1. 4. The switch according to claim 1, wherein only one of a pair of switches for obtaining a signal for stopping the driving electric motor is configured to be positionally adjustable. Switchgear. 5. A holding member for mounting the position-adjustable switch is movably supported in an operating direction of the push-pull chain, and a rack is integrally formed on the holding member and engages with the rack. The switchgear according to any one of claims 1 to 4, characterized in that a small gear is installed side by side, and the position of the switch is adjusted by rotation of the small gear. 6. The opening / closing device according to claim 5, wherein the small gear that engages with the rack is connected to a knob shaft that penetrates the casing and is exposed to the outside.