JP2525369Y2 - Automatic elevator storage - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic up-and-down type underfloor storage that moves up and down a storage box by driving a motor, for example.

[0002]

2. Description of the Related Art A conventional underfloor storage, in which an opening is provided on the floor of a house and a storage box is provided below the opening, is difficult to put in and out of storage items and to organize the storage box.
Recently, a so-called automatic lifting type underfloor storage, which raises and lowers a storage box by the power of a motor, has been developed. This automatic lifting type underfloor storage is configured to raise and lower the storage box by transmitting the power of a motor rotatable in both forward and reverse directions to a chain, a driving wire, or the like via a reduction gear. When the motor is overloaded, the motor is automatically stopped.

[0003]

[Problems to be Solved by the Invention] By the way, in the above-mentioned conventional automatic lift-type underfloor storage, when the human body is caught between the storage box and the entrance frame during the operation of raising and lowering, the motor is overloaded. Until the storage box continues to move up and down and does not stop at the moment, there is a risk of accidents such as fingering or entanglement. The present invention has been made in view of the above problems, and an object of the present invention is to provide an automatic lift-type underfloor storage provided with safety protection means so as not to cause the above-described accident.

[0004]

Means for achieving the above object will be described with reference to FIG. 2 corresponding to an embodiment of the present invention. A storage box 5 provided below an opening provided on a floor is provided. , A sensor 10 that is provided along the periphery of the opening and outputs a signal when a human body comes into contact, and a signal that is output from the sensor 10. Control means 11 for stopping the operation of raising and lowering the storage box 5 in the event that the storage box 5 is moved.

[0005]

The sensor provided along the periphery of the opening outputs a signal when a human body comes into contact with the sensor. The control means stops the operation of the drive mechanism based on the signal, and stops the elevation of the storage box.

[0006]

FIG. 1 is a schematic sectional view showing a configuration of an embodiment of the present invention. The underfloor storage frame 1 is fixed to a large underfloor housing and supports the entire underfloor storage. A storage box 5 is housed in the underfloor storage frame 1, and a drive motor 2 for raising and lowering the storage box 5 and a drive motor 2
Is fixedly provided outside the underfloor storage frame 1. An elevating switch 4 for operating the elevating and lowering of the storage box 5 is provided on a pillar or the like in the house.
The entrance frame 8 is attached along the periphery of the floor opening, and the touch sensor 7 is provided along the entrance frame 8 as a frame. The touch sensor 7 is a sensor that outputs a signal when a human body makes contact. Further, a lid 6 is fitted into the frame of the touch sensor 7 attached to the entrance frame 8, and can be opened and closed freely. When the storage box 5 is moved up and down, the lid 6 is manually opened.

FIG. 2 is a functional block diagram of the embodiment of the present invention. When the elevating switch 4 is turned on, the driving of the drive mechanism 12 is started by the control means 11. That is, the drive motor is turned on, and the storage box 5 moves up and down as indicated by the arrow in the figure. On the other hand, when a sensor provided at the entrance frame of the opening, for example, a touch sensor detects that it has come into contact with a human body, it outputs a signal. On the basis of this signal, the operation of the drive mechanism 12 is immediately stopped by the control means 11.

FIG. 3 is a flowchart of the control operation according to the embodiment of the present invention. That is, the elevation switch 4 is turned on to drive the drive motor (ST1). When the drive motor is on, the touch sensor 7 always determines whether the entrance frame 8 is in contact with the human body (ST2). That is, when the contact with the human body is detected, a signal is output in the next step (ST3). The control unit turns off the drive motor based on this signal and immediately stops driving the motor (ST4). If the contact with the human body is not detected, the process returns to ST2, and repeats the determination process of ST2 (ST2). With such a control operation, when the human body comes into contact with the entrance frame, the raising / lowering operation of the storage box 5 can be stopped immediately.

[0009]

[Effects of the Invention] As described above, according to the present invention, when a human body comes into contact with the entrance frame while the storage box is being moved up and down, the storage box is immediately stopped from moving up and down. It is possible to prevent an accident caused by the human body being caught between the two. Further, since the present invention can be applied to a case where it is desired to stop the storage box, the storage box can be easily stopped at a desired position simply by touching the entrance frame, and the operation is simple.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an embodiment of the present invention.

FIG. 2 is a functional block diagram of the embodiment of the present invention.

FIG. 3 is a flowchart of a control operation according to the embodiment of the present invention.

[Explanation of symbols]

 2 ··· Drive motor 3 ··· Control unit 4 ··· Elevating switch 5 ··· Storage box 7 ··· Touch sensor 10 ··· Sensor 11 ··· Control means 12 · ... Driving mechanisms

Claims (1)

(57) [Scope of request for utility model registration] A storage box provided below an opening provided on the floor, wherein the storage box is provided along the periphery of the opening in an automatic lift-type underfloor storage for raising and lowering by a drive mechanism;
And a sensor that outputs a signal when a human body comes into contact with the sensor,
Control means for stopping the raising and lowering operation of the storage box when the signal is output, wherein the automatic lifting type underfloor storage is provided.