KR20040091990A - Foldable automatic stairway system - Google Patents

Abstract

PURPOSE: A folding-type automatic staircase system is provided to maximize use of space, to complement a weakness in crime prevention, and to secure convenience, safety, and safe visibility by wireless control. CONSTITUTION: A folding-type automatic staircase system includes an opening and shutting port penetrating a predetermined portion of a floor member(50) of a structure; a finish member(10) finishing the inner wall surface of the opening and shutting port; a folding-type automatic staircase(100) horizontally fastened to the finish member; a power part providing kinetic energy; a power transmission unit transmitting kinetic energy produced from the power part, to make the folding-type automatic staircase eccentrically move up and down; and a control unit having a control part controlling the power part. The folding-type automatic staircase comprises a first folding staircase(120) horizontally combined to the finish member in a state rotating eccentrically; a second folding staircase(130) rotatably combined to the end of the first folding staircase; and a third folding staircase(140) rotatably combined to the end of the second folding staircase. The first folding staircase opens or shuts the opening and shutting port by eccentrically rotating by the power transmission unit. The second folding staircase is folded together with the first folding staircase by the rotation of a reduction motor. The third folding staircase has plural rollers mounted to the lower end part coming in contact with the ground.

Description

Folding automatic stairway system

The present invention relates to a folding automatic staircase system, and in particular, buried between floors such as a rooftop or attic or a multi-storey building, as the forward / reverse rotation of an electric motor is developed, the staircase is deployed to be in a usable state, or is folded and interposed between floors. The invention relates to a folding automatic staircase system that can be easily stored.

In general, the stairs connecting the attic or the rooftop of the house are roughly divided into indoor stairs installed inside the building and outdoor stairs installed outside the building, which are, again, non-variable stairs installed at the time of construction. It is classified into a variable moving ladder that can move its position according to the purpose of use.

Although the indoor non-variable staircase has the advantage of being able to move to the rooftop and the like without being influenced by the change of the climate, there has been an end to occupying a considerable range of residential space;

Outdoor non-variable stairs, mainly made of steel, has a relatively efficient space utilization, and has the advantage of low installation cost, but problems such as a safety accident may occur due to slip due to climate change, moisture or moisture, etc. There was;

Both the indoor and outdoor non-variable stairs described above have a problem of a security vulnerability in which a residential space is exposed unprotected when an outsider invades the rooftop or attic.

On the other hand, indoor and outdoor variable ladders have very high security effects and space utilization, but have problems such as climate change, the need for assistants and multiple accidents, and the inability to carry relatively heavy objects.

The present invention is to solve the above problems, to maximize the space utilization, as well as to provide a folding automatic staircase system that can compensate for security vulnerabilities.

Another object of the present invention is to provide a folding type automatic staircase system that combines convenience, safety, and secure field of view by wirelessly controlling the folding type automatic staircase system using a wireless control means such as a remote controller.

1 is a schematic block diagram of a folding automatic staircase system according to the present invention.

Figure 2 is a plan cross-sectional view showing the power transmission means of the foldable automatic staircase system according to the present invention.

Figure 3 is an illustration showing a state in which the folding automatic staircase according to the present invention is deployed

4 is an exemplary view showing a process of folding or unfolding the folding automatic staircase according to the present invention.

5 and 6 are exemplified diagrams showing a state in which the folding type automatic staircase according to the present invention is folded.

Fig. 7 is a cross sectional view of the main portion “A” of the foldable automatic staircase according to the present invention.

8 is a cross-sectional view taken along the line II ′ of FIG. 7.

9 is an exploded detail view of the main portion “B” of the foldable automatic staircase according to the present invention.

Fig. 10 is an illustration of the combination showing the combined state of the main portion “B” in Fig. 9.

Fig. 11 is a cross sectional view of the main portion “C” of the foldable automatic staircase according to the present invention.

12 is an exemplary view showing another embodiment of the folding automatic staircase system according to the present invention.

※ Description of the reference numerals for the main parts of the drawings

10: finishing member 20: rotating shaft

30: handrail 40: ceiling finishing member

50: bottom member 60: space part

70: ground 90: opening and closing

100: folding automatic step 110: second electric motor

120: first folding stair 130: second folding stair

140: third fold staircase 160: elastic rotating shaft

200: power transmission means 210: first electric motor

220: driven rod 240: winding drum

250: spacer 260: rotating member

270: rotating shaft 280: vertical conveying member

300 control means 310 control unit

320: transceiver 350: remote controller

400 case A: winding means

B: First folded part C: Second folded part

As a configuration of the present invention for achieving the above object,

Opening and closing holes penetrating a predetermined portion of the floor member constituting the floor of a residential, office, leisure building or a corresponding structure, a closing member for closing the inner wall surface of the opening and closing, horizontally fastening to the eccentric rotation on the finishing member A foldable automatic staircase, a power unit for providing kinetic energy, power transmission means for transmitting power so that the foldable automatic staircase performs eccentric vertical motion, and the kinetic energy generated from the power unit; In the foldable automatic staircase system comprising a control means having a control unit, the foldable automatic staircase is horizontally axially coupled to the eccentric rotation on the finishing member, by being eccentrically rotated up and down by the power transmission means, A first folding staircase to open or close the opening and closing door; A second fold staircase coupled to the distal end of the first fold staircase so as to be rotatable, and coupled to form a mutual fold with the first fold staircase by rotation of the reduction motor; It is rotatably coupled to the distal end of the second fold staircase and foldably coupled to the second fold staircase, and has a structural feature of the third fold staircase mounted with a plurality of rollers on the lower end portion surface contacting the ground. .

The power unit is an electric motor; The power transmission means is a rod-shaped driven rod coupled to the rotational shaft and the chain of the electric motor, and is coupled to both ends of the driven rod and chained, and is wound to be pivotally fixed by penetrating the closing member. It is preferable to include;

The winding means includes a pulley drum of a pulley shape; A cylindrical spacer member partially embedded in the finishing member to allow the winding drum to be spaced apart from the finishing member by a predetermined distance; A sun gear chained to the driven rod; A bearing interposed between the sun gear and the spacer; It is preferable to include a rotating shaft penetrating the winding drum, the spacer member, the sun gear, and fastened so that the bearing can be located on the outer circumference.

The winding drum may include a cylindrical winding portion having a diameter larger than that of the rotation shaft; It is preferable to include a disk-shaped first and second guide portions having a larger diameter than the winding portion and fastened to both ends of the winding portion.

On both side walls of the winding part and the first foldable staircase, a vertical transfer member made of a wire or a power transmission belt is fastened so that the vertical transfer member is unwound or wound on the winding drum as the electric motor is operated. It is desirable to allow the first folding stairs to perform an eccentric up-down movement.

Preferably, the control means further includes a transceiver for receiving a frequency of the remote controller and converting the signal into an electrical signal and transmitting the electrical signal to the controller.

It is more preferable that the controller collectively controls the rotational speeds and the number of rotations of the electric motor and the reduction motor, respectively, by the electrical signal received from the transmission and reception unit.

The electric motor refers to the first electric motor to be described later, and the reduction motor refers to the second electric motor to be described below.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, these examples are merely for illustrative purposes, and the technical idea of the present invention is not limited to these examples.

In addition, in the operation of the first and second electric motors 210 and 110, the rotational direction in which the foldable automatic staircase 100 may be deployed and usable for stair use is referred to as forward rotation, and vice versa. The rotation direction for being seated on the opening and closing port 90 is defined as reverse rotation.

1 is a schematic block diagram of a foldable automatic staircase system according to the present invention, FIG. 2 is a plan sectional view showing the power transmission means 200 in a state where the foldable automatic staircase 100 is not installed. 6 is an exemplary view showing an operating state of the foldable automatic staircase system according to the present invention.

In addition, Figure 7 is a cross-sectional view of the main portion "A" of the foldable automatic staircase 100 according to the present invention, Figure 8 is a cross-sectional view taken along line II 'of Figure 7, Figure 9 is a foldable automatic staircase 100 according to the present invention ) Is an exploded detailed view of the main portion "B", Figure 10 is an illustration showing the combined state of the main portion "B" of Figure 9, Figure 11 is a main portion of the foldable automatic staircase 100 according to the present invention " C "is a cross sectional view.

The recesses A, B, and C are winding means A for transmitting power to the folding automatic staircase 100 to be described later, and the first folding portion B and the second folding portion formed in the folding automatic staircase 100. It refers to the part (C), and their configuration and operation principle will be described later.

1, the first and second electric motors 210 and 110, the limit switch 370, and the control means 300 connected to each of them to perform overall control.

The control unit 300 receives a frequency transmitted from the remote controller 350 and transmits it to the control unit 310 to be described later, from the transmission and reception unit 320 and the limit switch 370 Receiving the transmitted electrical signal to operate or stop the first and second electric motors (210, 110), respectively, as well as the control unit 310 for controlling the total number and rotation speed of each of these includes a Has a configuration.

2 and 3, the floor member 50 and the ceiling finishing member 40 which form an interlayer of the building so as to be opened or closed by the folding automatic staircase 100 to serve as doorways. Opening and closing hole 90 is formed through, and finishes the side wall of the opening and closing 90, as well as the closing member 10 which serves to support the folding automatic staircase 100 is configured.

As shown in Figures 2 and 3, the finishing member 10, the bottom locking jaw (12) formed to be supported by the bottom member 50, which is implemented in concrete or wood, and the ceiling finish It has a configuration in which the ceiling-side latching jaw 14 formed to be caught and supported by the processing ceiling finishing member 40 is formed. In this case, a predetermined space portion 60 is generally formed between the bottom surface of the bottom member 50 and the ceiling finishing member 40, as shown in FIG. 3, the first electric motor 210. Is fastened on the bottom surface of the ceiling finishing member 40 or the bottom member 50.

In addition, the power transmission means 200 for transmitting the power of the first electric motor 210 to the foldable automatic staircase 100 is provided, as described in more detail with reference to Figure 2, the first electric motor A first sun gear 214 is formed on the rotation shaft 212 of 210, and the outer peripheral edge and the both sides corresponding to the first sun gear 214 are spaced apart from the rotation shaft 212 by a predetermined distance. At the distal end, there are driven rods 220 formed with second and third sun gears 222 and 224, respectively.

At this time, the first power gear 212 and the third sun gear 224, the first power transmission member 232, which is implemented as a chain or a belt for power transmission is connected in a caterpillar shape. The first power transmission member 232 serves to allow the first electric motor 210 and the driven rod 220 to rotate in the same manner.

In addition, as shown in FIGS. 2 and 3, portions of the driven rod 220 opposite to the second sun gear 222 may respectively include fourth sun gears 272 of the winding means A on both left and right ends thereof. Is positioned, the winding means (A) has a configuration that is rotatably fixed on the finishing member 10 by penetrating the finishing member 10. At this time, like the first power transmission member 232, the second power transmission member 234 of the orbital shape having a constant tension is connected to the second and fourth sun gear 272, thereby providing the first power. The power of the electric motor 210 is configured to rotate the winding drum 240 of the winding means (A) as it is.

On the other hand, as shown in Figure 2 and 3, the rotating shaft 20 is provided through the fastening means (A) of the power transmission means 200 and the closing member 10 of the position spaced apart a predetermined distance is provided, The rotating shaft 20 is a horizontal through-fastening of the first folding staircase 120 of the foldable automatic staircase 100 to be described later, so that it can be rotated up and down, the detailed operation principle will be described later do.

Referring to FIG. 7, the winding means A will be described in detail. As shown in the drawing, a winding drum 240 having a pulley shape and a portion of the winding member 240 are partially embedded in the winding drum 240. Cylindrical spacer member 250 so as to be spaced apart from the finishing member 10 by a predetermined distance, and in contact with one end of the spacer member 250, interposed between the fourth sun gear 272 The cylindrical rotating member 260 accommodated therein, the winding drum 240, the spacer 250, the closing member 10, the rotating member 260 and the fourth sun gear 272 Is fastened horizontally through, has a configuration of a rotating shaft 270 is screwed by the first guide portion 242 and the fastening bolt 292 and the bushing 294 of the winding drum 240.

At this time, the rotation shaft 270 is in contact with each other, the bearing 262, it is preferable that the rotational movement is fastened to be made more easily.

On the other hand, the winding drum 240 is made of a conventional pulley shape, as shown in Figure 7, the winding of the cylindrical winding portion 246 having a larger diameter than the pivot shaft 270, respectively, the winding The first and second guide parts 242 and 244 having a diameter larger than that of the mounting part 246 are respectively fastened.

In addition, the winding portion 246, as shown in Figures 7 and 8, is implemented with a flat belt or wire, etc. up and down conveying member 280 to vertically move one end of the foldable automatic staircase (100) ) Is fastened to a bar, in which the predetermined portion of the outer circumference of the winding part 246 is a bending hall (bending hall) made of a sharp curve so that the upper and lower transfer members 280 can be curvedly inserted. Is formed, and a fixing member insertion groove (not shown) is formed so that the fixing member 284, which is implemented by a fixing pin or a fixing bolt, can be inserted on a sharp curved surface among the bending holes (not shown). ) Is formed.

The fastening configuration will be described in detail. After the upper and lower conveying members 280 are inserted into the bending holes (not shown), the fixing members 284 are press-fitted into the fixing member insertion grooves (not shown). Bending) is fastened to achieve unwinding of the fastened up and down conveying member 280.

In addition, the upper and lower conveying member 280 is fastened as described above is wound around the outer diameter of the winding portion 246 using the fastening bolt 282 to the outer periphery of the upper and lower conveying member 280 and the winding portion 246 By penetrating through, it is desirable to be able to maintain a more secure fastening force.

Preferably, the edge portions of the first and second guide parts 242 and 244 are formed to be outwardly bent, such that the vertical transfer member 280 is on the winding part 246 of the winding drum 240. Ideally, it is ideally constructed so that it can be wound around more securely, and these shapes are well known.

Hereinafter, FIGS. 3 to 6 will be described in detail with reference to FIGS. 7 to 11.

As a configuration of the foldable automatic staircase 100 according to the present invention, the first folding step 120 and the one end portion of the first fold staircase 120, wherein a predetermined portion of one side end is horizontally coupled to the rotating shaft 20. And a second fold staircase 130 coupled to be rotatable upward to form an upper fold, and coupled to the other end of the second fold stair 130 so as to be pivotable downward. It has a schematic configuration of the third folding stairs (140).

As shown in FIGS. 3 to 6, the first foldable staircase 120 has a handrail 124 formed thereon, and ring-shaped locking portions 126 are formed on both sidewall surfaces thereof, thereby forming the winding portion. The distal end of the vertical transfer member 280 fastened and wound at 246 is wound around the locking portion 126, and then firmly fastened by a fastening means (not shown) such as a fastening bolt. In addition, the bottom surface of the first folding stairs (120), by mounting a panel 122 made of the same material or wood panel and the same as the ceiling finishing member 40, the reverse rotation of the first electric motor (210) When the folding automatic staircase 100 is completed by folding and closing the opening and closing 90, the panel 122 can be neatly finished with the opening and closing opening 90 by the same height as the ceiling finishing member 40. It is composed.

The third folding staircase is formed so that the part surface grounded with the ground 70 is formed at a predetermined angle to be safely grounded with the ground 70, and the front end portion of the part surface grounded with the ground 70 and The rollers 142 and 144 are fastened to the rear ends, respectively.

As described above, the first to third folding steps 120, 130, and 140 are configured to have rectangular end portions 129, 138, 139, and 149 so that they can no longer be rotated when deployed. When the first to third folding steps 120, 130, and 140 are developed by the forward rotation of the first electric motor 210, the ends 129, 138, 139, and 149 abut each other. It is configured to prevent excessive rotation, as well as to transmit the load applied from the stairs to the ground 70 completely.

On the other hand, as the configuration of the first folding portion (B) for the first and second folding stairs (120, 130) to be folded to each other, as shown in Figure 9 and 10, the first and second folding stairs ( The second electric motor 110 is horizontally mounted between the folding portion of the 120 and the stairs 155 of the first folding stairs 120 adjacent thereto. At this time, the second electric motor 110, the sun gear 114 is formed on the rotation shaft 112, the first driven gear 116 and the first driven gear to be fitted to the sun gear 114, the first driven The second driven gear 118 meshing with the gear 116 and the first rotating parts 152a and 152b for accommodating the sun gear 114 and the first and second driven gears 116 and 118 therein. Is done.

In detail, the first pivoting portions 152a and 152b and the second pivoting portions 132 of the second folding stairs 130 are superposed, and then the through holes 118a and 132a are formed using the fixed shaft 156a. , 152a-1, 152-b, and then through the fixing bolt 156b has a fastening principle to form a screw coupling with the fixed shaft (156a). In this case, in order to fix the first driven gear 116 to the inside of the first rotating parts 152a and 152b so as to be rotatable, the first rotating parts 152a and 152b using the fixing rod 156c. And it is preferable to fasten the first driven gear 116 through.

As a structure of the 2nd folding part C for the 2nd and 3rd folding steps 130 and 140 to be mutually folded, as shown in FIG. 11, the 1st and 1st part which comprises the 2nd folding step 130 are shown. Set so that the respective ends 139 of the two support parts 135a and 135b and the respective end parts 149 of the third and fourth support parts 149a and 149b constituting the third folding staircase 140 may face each other. Then, the plate-shaped fixing plate 150 is positioned on the outer surfaces of the first support part 135a and the third support part 149a, the second support part 135b and the fourth support part 149b, respectively, and then The fixing plate 150, the first support part 135a, and the second support part 135b are respectively screwed through the bolt 292 and the bushing 294.

In addition, the rod-shaped elastic rotating shaft 160 is used to fasten through the fixing plate 150 to the third support part 149a and the fourth support part 149b.

In this case, the elastic rotation shaft 160, the engaging portion 168 is formed at both ends so as to be supported on the fixing plate 150, between the fixing plate 150 and the elastic rotation shaft 160 By inserting the bearing 152, the elastic rotation shaft 160 is configured to be more freely rotated.

In addition, on the outer periphery of the elastic pivot shaft 160, a plurality of locking members 166 having a predetermined weight are mounted and compressed between the locking member 166 and the third and fourth supporting portions 149a and 149b. Each of the coils 162 and 164 is interposed with each other in a state of being reversely wound.

This configuration has an operation principle in which the compression coils 162 and 164 press the locking member 166 in a predetermined direction. In more detail, as the second electric motor 110 is rotated forward and the second folding stairs 130 are developed, the lower surfaces on which the rollers 142 and 144 of the third folding stairs 140 are mounted have a gravity action. By forward development toward the ground 70 by, the third folding step 140 serves to perform the elastic action to be fully developed on the ground (70).

The foldable automatic staircase system configured as described above can be deformed within a certain range. For example, in configuring the second folding portion C, the second folding portion C may be configured as the first folding portion B using the second electric motor 110 implemented as a reduction motor.

In addition, as shown in Figures 3 to 6, it is preferable to configure the hand rail 30 on the floor-side locking jaw (12) to prevent the safety accident in advance.

12 is an exemplary view showing another embodiment of the foldable automatic staircase system according to the present invention. This is a configuration in which the ceiling finishing member 40 is installed between floors that are not used. In particular, the ceiling finishing member 40 may be easily installed on the floor member 50 formed of a roof or wood, etc. There is a disadvantage that the space utilization may be limited in part due to the characteristics installed on the).

As a structural feature, after the first electric motor 210 and the driven rod 220 is fixed and fastened on the bottom member 50, and then closed with a case 400 and the same configuration as the above-described embodiment and Since the operation principle is a detailed description thereof will be omitted.

Hereinafter, the operation principle of the folding type automatic staircase system having the above configuration will be described.

When the user operates the remote controller 350 for the purpose of deploying the foldable automatic staircase 100, after the frequency for achieving the desired purpose is received through the transceiver 320 of the control means 300, transmission and reception are performed. It is converted into an electrical signal through the unit 320 and transmits the electrical signal to the controller 310.

Accordingly, the control unit 310 instructs to rotate forward by a predetermined number of revolutions of the first electric motor 210. As the first electric motor 210 is rotated, the driven rod 220 and the winding means A perform the same rotational movement, and the vertical transfer member 280 wound around the winding part 246 moves downward. The first folding staircase 120 coupled with the up and down conveying member 280 is downwardly moved around the rotation shaft 20.

When the number of revolutions of the first electric motor 210 is completed, the control unit 310 stops the operation of the first electric motor 210 and at the same time, performs forward rotation of the second electric motor 110 by a predetermined number of revolutions. Command to do as many as

At this time, as the second electric motor 110 is rotated, the bottom surface of the third folding stairs 140 is elasticized in the gravity action direction by the elastic force of the second folding portion C having the above-described configuration, The third folding stairs 140 may be developed without damaging the ground 70 by the rollers 142 and 144 mounted while being completely grounded on the ground 70.

In addition, when the folding automatic staircase 100 is folded, the operation principle is performed in the reverse order to the above operation principle. However, in the operation stop of the first electric motor 210, the rotational speed of the motor is not counted. Only when the limit switch 370 shown in the operation range is located, the operation stops.

The limit switch 370, as is well known, is composed of a first sensing unit 372 and the second sensing unit 374, which is again implemented as a non-contact type, such as a contact type or a magnetic sensor by a pressure method.

Foldable automatic staircase system having such a configuration and operation principle, can be applied to a residential, office, leisure building or a corresponding structure, for example, leisure cabin (Cabin), bungalow (bungalow) and the like.

As described above, according to the present invention, the security function can be further enhanced while maximizing space utilization, and wireless control is possible by using a remote controller, so that convenience and safety can be realized.

Claims (7)

Opening and closing holes penetrating a predetermined portion of the floor member constituting the floor of a residential, office, leisure building or a corresponding structure, a closing member for closing the inner wall surface of the opening and closing, horizontally fastening to the eccentric rotation on the finishing member A foldable automatic staircase, a power unit for providing kinetic energy, power transmission means for transmitting power so that the foldable automatic staircase performs eccentric vertical motion, and the kinetic energy generated from the power unit; In the folding automatic staircase system comprising a control means having a control unit, The foldable automatic staircase includes a first foldable staircase which is horizontally axially coupled to the finishing member so as to be eccentrically rotatable, and is opened and closed by the power transmission means to open or close the opening and closing means. A second fold staircase coupled to the distal end of the first fold staircase so as to be rotatable, and coupled to form a mutual fold with the first fold staircase by rotation of the reduction motor; It is rotatably coupled to the distal end of the second fold staircase is foldably coupled to the second fold staircase, characterized in that consisting of a third fold staircase with a plurality of rollers mounted on the lower end portion surface contacting the ground Folding automatic stair system. The method of claim 1, The power unit is an electric motor; The power transmission means, the rod-shaped driven rod coupled to the rotating shaft and the chain (Chain) of the electric motor, And a winding means which is chain-coupled with both end portions of the driven rod and penetrates through the closing member to be rotatably fixed. The method of claim 2, wherein the winding means, A winding drum of a pulley shape; A cylindrical spacer member partially embedded in the finishing member to allow the winding drum to be spaced apart from the finishing member by a predetermined distance; A sun gear chained to the driven rod; A bearing interposed between the sun gear and the spacer; And a rotating shaft penetrating the winding drum, the spacer member, and the sun gear and fastened to allow the bearing to be positioned on an outer circumference thereof. The method of claim 3, wherein the winding drum, A cylindrical winding portion having a diameter larger than that of the rotation shaft; And a disk-shaped first and second guide portion having a larger diameter than the winding portion and fastened to both ends of the winding portion. The method according to claim 1 or 2 or 4, On both wall surfaces of the winding section and the first folding stairs, By fastening the upper and lower conveying members made of a wire or a power transmission belt, the upper and lower conveying members are loosened or wound on the winding drum as the electric motor is operated so that the first folding staircase can perform the eccentric vertical motion. Folding automatic staircase system, characterized in that. The method of claim 1, wherein the control means, And receiving and transmitting a frequency of the remote controller and converting the electrical signal into the control unit. The method according to claim 1 or 6, The control unit, the folding automatic stepping system, characterized in that the overall control of the rotational speed and the number of revolutions of the electric motor and the reduction motor by the electrical signal received from the transmission and reception unit.