JPS63122883A - Automatic switching expansion gate door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a telescoping gate, and more particularly to an automatically opening/closing telescoping gate that can be opened and closed by a drive motor.

(Background Art) Conventionally, as a technique for freely opening and closing a telescopic gate using a drive motor, one technique is to use a plurality of links, for example, as shown in U.S. Pat. In the case of pantographs and fold-shaped telescoping gates in which members are pivoted in a rhombic lattice, one span of the end on the hanging side (i.e., one span of the rhombic pantograph structure consisting of many consecutive rhombic pantographs in the direction of expansion and contraction) Regarding one), the rack is passed diagonally with a male threaded rod, and a female threaded member fixed to the gate is screwed onto the male threaded rod, and each diamond-shaped pantograph structure is continuously formed by rotation of the drive motor of the male threaded rod. It is known that the entire body can be expanded or contracted.

The purpose of this structure, in which the male threaded rod is passed over one (short) span of the telescoping gate, is to prevent the male threaded rod from protruding into the gate opening surface, obstructing traffic, or damaging the appearance. It is thought that this is because of this.

However, such conventional one-span type automatically opening/closing telescoping gates require a large amount of force to open and close. For this reason, conventional automatic opening/closing telescoping gates require a drive motor with relatively high horsepower or a reduction gear such as a gear train, leading to increased costs. In addition, even if these are used while accepting the high cost, link members and pivot pins that are pivoted in a rhombic lattice shape,
Since it requires more strength than manual opening/closing, this not only increases the product cost, but also requires designing a separate gate body for manual opening/closing, which is complicated, and the number of types has increased. This resulted in complicated and high costs in terms of manufacturing and inventory. In particular, when automating the existing manual opening/closing telescoping gates with retrofitting, there were problems with the strength.

Another important problem with conventional one-span type automatic opening/closing telescoping gates is that they are dangerous because they do not ensure straight line movement when opening/closing. Even when running on rails, there was an inherent risk of derailment.

(Object of the Invention) The present invention was made in consideration of the problems of conventional automatic opening/closing telescoping gates of this type, and can be opened/closed with a relatively low horsepower drive motor, and requires no unreasonable force on each member. It is highly durable, and there is no need to worry about its strength, especially when it is retrofitted to an existing manual opening/closing gate to automate it. Furthermore, the gate has excellent straightness and is safe, making it easy to inspect, clean, repair, etc. To provide an automatically opening/closing telescopic gate that is easy to maintain and can be easily switched between automatic and manual modes.

(Structure of the Invention) For this purpose, the present invention enables the gate to be opened and closed using the door stop side end as a point of force by rotating a drive motor of a screw rod that extends over the entire length of the horizontal opening width of the telescoping gate. That is, the present invention provides a telescoping gate in which a plurality of link members are pivoted in a rhombic lattice shape and can be opened and closed horizontally, and a screw rod connected to a drive motor is provided on the lower floor of the telescoping gate. The screw rod is provided over the entire width of the horizontal opening of the telescopic gate, and a screw block with a female thread is screwed onto the screw rod. Housed in a removable screw rod case equipped with a slit-shaped opening along the longitudinal direction of the letter shape, etc., and the screw block, the door stop stile and other members at the door stop side end of the telescopic gate, The automatic opening/closing telescoping device is characterized in that the gate is connected by a removable connector through the slit-shaped opening of the screw rod case, and the gate can be opened and closed using the door stop side end as a point of force by rotation of the drive motor of the screw rod. The gist is the gate.

Hereinafter, the present invention will be described with reference to drawings showing embodiments.
Reference numeral 1 denotes a telescopic gate, and this telescopic gate 1 has a plurality of link members 11 arranged in a rhombic lattice shape in a vertical plane, and a shaft rod 1.
It is constructed by pivoting the intersection point with 2.... The left end of the lattice body formed by pivoting each of these link members is pivoted to the hanging post 13 to form a hanging base, and the right end is pivoted to the door frame 14, An auxiliary frame 15 is arranged between them and pivoted, and is configured to be opened and closed from side to side by wheels 19 on a guide rail 18 between the door stop column 16 and the above-mentioned hanging column 13.

On the other hand, 2 is an automatic opening/closing mechanism using a screw rod 21. That is, the screw rod 21 of this embodiment is formed by twisting a stainless steel plate into a male thread shape. In the embodiment, the structure is installed 7i in a recessed manner buried underground. Here, the screw rod 21 is
It is provided along the opening/closing direction of the telescopic gate and over the entire width of the horizontal opening, and also extends to the width of the tatami on the left side of the gate (L in Figure 1). As shown in FIG. 6, the screw rod 21 is connected to screw rod auxiliary shafts 22, 22 made of stainless steel rods at the left and right ends, and is shafted by left and right bearings 23, 23 fixed to a screw rod case 37, which will be described later. I support you. Furthermore, the screw rod auxiliary shaft 22 on the suspension side is connected to a motor shaft 24 via a shaft joint 25, and the screw rod 21 is rotated by the rotation of the drive motor 26.

Incidentally, the screw rod auxiliary shafts M22, 22 connected to the screw rod 21 are fitted into the bearings 23, 23 and are pivotally supported.
Two nuts 27, .

On the other hand, the reference numeral 28 in the figure is a screw block, and the screw block 28, as shown in FIG. Holder guide plate 31, stainless steel cedar plate-shaped connection arm 32, and brush 33
It becomes more.

The block base 29 is provided with a through hole 34 into which the screw rod 21 is inserted, and a female thread component holder 35 into which the female thread component 30 is mounted. - 10,000, the female threaded part 30 is provided with a female threaded part 36 into which a screw rod 2 is screwed, and after the female threaded part 30 is mounted on the female threaded part holder 35 of the block base 29, the holding guide plate 31, The connecting arm 32 is screwed to the block base 29 in this order. The brush 33 is provided at the rear end of the block base 29 and is used to keep out mud.

Next, numeral 37 in the figure is a screw rod case, and the screw rod case 37 is made of an extruded aluminum alloy material, and has a slit-like opening 38 along the longitudinal direction, such as a substantially U-shaped or C-shaped cross section. It is formed by molding it into a specific cross-sectional shape. Inside the screw rod case 37,
When the left and right bearings 23 and 23 are fixed as mentioned above,
The screw rod 21 and the screw block 28 screwed onto the screw rod 21 are housed therein. Here, the holding guide plate 31 of the screw block 28 is guided by the slit-shaped opening 38, and the connecting arm 32 is made to protrude from the slit-shaped opening to the outside of the case.

In this way, the screw rod case 37 that houses the screw rod 21 and the screw block 28 is
In this embodiment, it is removably housed within a fixed outer frame 39 having a U-shaped groove in cross section and fixed to the lower floor of the telescopic gate in a manner embedded in the ground.

The connecting arm 32 of the screw block 28 protruding from the slit opening 38 of the screw rod case 37 is removably connected to the lower frame of the door frame 14 of the telescopic gate using a cross-recessed machine screw 40. As a result, the gate 1 can be freely opened and closed by rotating the drive motor of the screw rod 21 using the end of the telescopic gate 1 on the door stop side as a point of force. In addition, it is desirable that the connection position be such that as much as possible, no moment is applied to the gate in the horizontal plane to ensure smooth opening and closing.

Although this embodiment has been constructed as described above, the present invention can be practiced by changing its specific materials, dimensions, shape, structure, etc. in various ways as long as it does not go against the gist of the invention. Needless to say, it is not limited to.

For example, the diamond-shaped structure of the link member in this embodiment expands and contracts in a vertical plane, but it may also expand and contract in a horizontal plane.
An intermediate angle between these may be used.

Further, in this embodiment, the screw rod is installed at one location Iy, which is buried in the ground, but it suffices to install it on the floor below the gate, and it may also be installed on the ground surface, for example. At this time, as the fixed outer frame, for example, two long L-shaped angle members,
The screw rods are arranged back to back in parallel across the expected width of the case, and anchor bolts are driven into the floor and ground through the bottom of the double-sided angle pieces to fix them. The screw rod case can be removably housed in the U-shaped upward groove formed.

In addition, if the slope-shaped sloped surface material is continuous from the upper end of the curved angle material to the ground surface, the passage of carts, etc. will be made smoother.

Next, regarding the material and manufacturing method of the screw rod, in this example a stainless steel plate was twisted to form a male thread shape, but this could be formed by twisting an extruded aluminum alloy bar with ribs in the longitudinal direction. Of course, threading may be performed by cutting. Depending on the rotation speed of the drive motor, etc.

Longer lengths of regular bolts are also used as appropriate.

Furthermore, although the screw block in this embodiment is made up of a plurality of parts as described above, it can also be made into a simple unit with a nut and a connecting arm made of lava, for example, in order to reduce costs.

In addition, bearings can be adopted as needed. For example, the left and right end surfaces of the screw rod case are closed with end closing plates with through holes, and the screw rod is installed in the through holes. This is a simple structure that reduces costs. It is also possible to aim for Similarly, the screw rod auxiliary shaft may also be omitted, or the screw rod may be directly connected to the motor shaft. These configurations are appropriately adopted in consideration of the opening width, weight, and other design conditions of the telescoping gate.

As for the screw rod case, we have listed approximately U-shaped and approximately C-shaped as examples of cross-sectional shapes, but any case with a slit-like opening that allows the connecting arm to protrude will suffice; Not limited to. Further, the width of the slit-like opening is also appropriately determined during design.

Furthermore, the removable connecting device used in this example was a cross-recessed machine screw, but this can be selected from various methods other than non-separable connecting means such as welding. In addition to metal fittings such as drop pins and French drop pins, magnets, etc. can also be used.

On the other hand, the screw rod is provided over the entire length of the horizontal pull opening II of the gate, but this is because the screw rod is provided with a length that allows the screw block to guide the horizontal pull opening and closing of the gate over the entire opening width. means that
It does not necessarily have to be exactly below the doorstop pillar.

For example, in order to provide bearings, motors, etc., a screw rod may be placed as far as the bottom of the door stop column. By adjusting the connection position between the connecting arm and the end of the door contact side, the gate can be guided to open and close over the entire opening width. Even when the gates are arranged in a series facing each other and opened with their hands together, a screw rod bearing is often required in the center part, and a drive motor is installed in the central part, so that one motor can operate two gates. In some cases, the screw rod may open and close automatically, and in such a case, the screw rod does not need to reach directly below the palm-joining portion, as described above.

Furthermore, the connection position between the screw block and the end member on the door stop side of the telescoping gate is not limited to this, although in this embodiment the bottom frame of the door stop stile is connected via the connection arm.
It is sufficient that the gate can be opened and closed using the door stop side end of the telescopic structure of the telescopic gate as the point of emphasis.

Effects of the Invention) Since the present invention is configured as described above, it has the following effects.

That is, the automatic opening/closing telescopic gate according to the present invention includes a screw rod connected to a drive motor over the entire width of the horizontal opening of the telescopic gate, and a screw block screwed onto the screw rod and a screw rod connected to the door stop side of the telescopic gate. By making an M connection with the end member, the gate can be opened and closed using the door stop side end as a point of force by rotating the drive motor of the screw rod, so compared to the conventional one-span type automatic opening/closing telescopic gate, it is easier to open and close. The force can be significantly reduced,
The drive motor is also of low horsepower, allowing for smooth opening and closing.'' Second, each member of the gate does not require any particular strength, making it economical and offering improved durability. In addition, since this type of special strength is not required, the gate can be used in common with manual opening/closing gates, reducing the number of types, and reducing costs in terms of manufacturing, inventory, etc. In particular, even when an automatic opening/closing mechanism is retrofitted to an existing manual opening/closing telescoping gate to automate it, as mentioned above, no excessive force is applied to the parts, and durability is ensured without the need for special reinforcement. can do.

In addition, the automatic opening/closing telescopic gate according to the present invention has a screw
Since the rond is provided over the entire length of the horizontal opening width of the telescopic gate, compared to the conventional one-span type automatic opening/closing telescopic gate, it is safe and smooth with no risk of derailment. It can be opened and closed easily.

On the other hand, the automatic opening/closing telescopic gate according to the present invention has a screw rod and a screw block housed in a removable screw rod case (1), which effectively prevents dust, sand, mud, etc. from adhering to the screw rod. In addition, maintenance such as inspection, cleaning, and repair is easy, and smooth opening and closing can be achieved over a long period of time.

Furthermore, the automatic opening/closing telescopic gate according to the present invention connects the screw block and the member at the end of the telescopic gate on the door stop side with a removable connector, so it is easy to switch between automatic and manual mode, and it is easy to switch between automatic and manual modes in the event of a power outage. In addition to being convenient, the connection position is at the end of the door stop side of the gate, so if, for example, one person is going in and out, the connection can be released and the door stop can be attached to both sides of the gate to create the required width. You can easily enter and exit the room by using automatic and manual functions.

[Brief explanation of the drawing]

The drawings show an embodiment, and FIG. 1 is a front view of the automatic opening/closing telescopic gate according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is a cross-sectional perspective view of the automatic opening/closing mechanism, and FIG. 4 is the same. 5 is an exploded perspective view of the screw block, and FIG. 6 is a front sectional view of the automatic opening/closing mechanism showing the relationship between the screw rod, bearings, etc.

Claims (1)

[Claims] In a telescoping gate in which a plurality of link members are pivoted in a rhombic lattice shape and can be opened and closed horizontally, a screw rod connected to a drive motor is attached to the lower floor of the telescoping gate over the entire width of the horizontal opening of the telescoping gate. A screw block with a female thread is screwed onto the screw rod, and the screw rod and screw block are formed into a slit-like shape along the longitudinal direction, such as a substantially U-shaped cross section or a substantially C-shaped cross section. The screw block is housed in a removable screw rod case provided with an opening, and the screw block and the door stop frame and other members at the door stop side end of the telescopic gate are connected through the slit-like opening of the screw rod case. An automatic opening/closing telescopic gate characterized in that it is connected by a detachable connector and can be opened and closed using the door stop side end as a point of force by rotating a drive motor of a screw rod.