JP2544677Y2 - Drive mechanism and drive unit of automatic gate for construction site - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a gate drive mechanism which is supported at a doorway at a construction site where a large truck or the like enters or exits at a construction site or at a work site so as to open and close left and right.
More specifically, the present invention relates to a drive mechanism of an automatic gate for a construction site that is automatically opened and closed by a drive motor, and a drive unit thereof.

[0002]

2. Description of the Related Art Temporary gates at entrances and exits of construction sites where large vehicles such as dump trucks frequently enter and exit are installed at various locations above an accordion-shaped gate which can be folded or unfolded to open and close freely. The roller on the support rod is inserted into the opening / closing guide of the gate beam and hung, and the lower part of the gate is passed through the guide rope that crawls on the ground to equip it. The security guard who is filling the gate manually pulls, folds, extends and opens and closes to guide the vehicle.

[0003] This gate is designed to minimize the pollution of the surroundings due to noise and dust at the cluttered construction site, and to prevent a large amount of earth and sand from preventing accidents caused by general pedestrians other than construction personnel. It is common practice to close the entrances of large vehicles such as dump trucks and trucks that carry in and out ready-mixed concrete and building materials with gates, and the necessity is particularly remarkable in urban areas where there is a large amount of traffic.

In addition, since the equipment is installed at the entrance of a complicated construction site, there may be some building materials and other vehicles carried in the vicinity of the gate, so that large vehicles can still enter and exit sufficiently. It is a large gate at the wide entrance and needs to be manually and promptly opened and closed by human power every time a vehicle enters and exits. On the other hand, in recent years with a shortage of workers, the manual opening and closing of this large gate is quite demanding for security officers, who are relatively weak women or elderly men, and speedy opening and closing of the gate in this situation was hopeless. Therefore, in an urban area with a large traffic volume such as people and vehicles, each time a large vehicle enters or exits the construction site, it takes time to open and close the gate, and large vehicles trying to enter the construction site pass through the road facing it. In addition to putting people who are in danger for a long time, there are problems such as hindering smooth traffic of people and vehicles and causing traffic congestion.

[0005] Therefore, it has been tried to open and close a gate of a large vehicle entrance at a construction site automatically, and a driving mechanism thereof includes a driving drum driven by a motor opposed to a temporary gate at the entrance along the opening / closing direction. An endless annular wire rope is stretched over both the drums, and the wire rope is wound a plurality of times to prevent slippage at the time of driving in the drive drum and reliably transmit the driving force. The wire rope is driven by rotating the drive drum by operating the drive motor, and the wire rope is driven by the operation of the drive motor, The gate to be connected to a predetermined place to be moved is opened and closed.

However, in this drive mechanism using a wire rope, the tension between the two drums is increased to stretch the drum, and the wire is wound around the drive drum a plurality of times to prevent slippage between the drive drum and the wire rope during driving. As a result, smooth and quick opening / closing drive cannot be expected, and a very large resistance is added to the drive drum drive. Easily fatigued.

[0007] In particular, when a plurality of winding portions of a wire rope on a driving drum are orderly wound, the wire is driven relatively smoothly. However, as the slack of a heavy wire rope increases, the winding during driving increases. The parts cannot be wound up in order, and one of the unwinding parts cannot be unwound due to being held down by the subsequent winding, which makes it difficult to drive smoothly and finally turns Troubles such as falling into disability are easy to occur,
The frequency of maintenance also increases.

Further, since the wire rope is stretched tightly, it is difficult to assemble the wire rope at a manufacturing plant in accordance with the gate width at each site. Therefore, the wire rope is directly cut and connected to the gate beam at the site. As a result, there have been many problems, such as a very inefficient configuration and an extremely inefficient configuration in which a special device for tensioning the wire rope must be assembled and mounted at a complicated construction site.

[0009]

The problem to be solved by the present invention is that, in an automatic gate provided at a large vehicle entrance gate at a construction site, the conventional automatic opening / closing mechanism driven by a wire rope, which is problematic, is driven from the beginning again smoothly and quickly. An object of the present invention is to develop a durable automatic opening / closing mechanism and realize an opening / closing drive unit that can be easily attached to an existing temporary gate and a combination with the attachment member.

[0010]

Means for Solving the Problems In order to achieve the above object, the present invention opens and closes a door that is folded at a gate at a construction site doorway and supported to slide left and right by a motor drive. In the opening and closing direction
Driving drive motors installed facing each other to equip along
A chain guide is used to guide the shaft by supporting a roller chain belt connected endlessly around the sprocket of the shaft and the support shaft.
Drive motor connected to the chain guide
The engaging portion of the cross-sectional cumbersome U-shape provided by forming a driving unit in a plate, the
U-shaped cross-section and C-shaped cross-section
An attachment consisting of a similar holding part and a horizontal arm
Attach the drive unit along the gate beam with the member, and
A drive mechanism for an automatic gate for a construction site that has a drive arm mounted horizontally on a part of the roller chain belt of the <br/> and connected to the top of the top of the opening and closing door.
And easy installation on the gate at the entrance and exit of the construction site .

[0011] Further, the drive section and the inverted U-shaped section are formed.
A horizontal arm with a hanging part and a holding part having a C-shaped cross section
For construction sites consisting of a combination with a mounting member joined by
The automatic gate drive unit makes it possible to easily and securely mount the door on existing temporary gates and open and close the door smoothly and quickly.

[0012]

[Function] A transmission mechanism without slippage due to the meshing and suspension of the roller chain belt on the sprocket of the drive shaft and the support shaft.
The drive arm can be driven by transmitting the rotation force of the motor straight to the roller chain belt without being reduced, and the upper end of the opening and closing door supported by the gate is smoothly moved along the length direction of the beam by the driving operation Then it can be pushed and moved quickly to open and close automatically. Engagement part of drive part and engagement part of mounting member
To the gate beam, and hold the mounting member
Hold the long chain guide along the
The part can be easily attached to the gate beam part. two
The drive unit is symmetrically arranged, and the two doors are installed facing each other.
In the drive mechanism worn, each door opens and closes each other from the center.
Fold in the direction to open and close. Projection of roller chain belt
The roller is supported by the upper and lower chain guides, making it light and circular.
The roller chain belt smoothly drives.

A drive unit supported to guide a roller chain belt hung on a sprocket of a drive shaft and a support shaft by a chain guide makes it possible to assemble and mount in a manufacturing plant according to dimensions of various existing temporary gates. By a combination of a hook portion of the motor board of the drive unit and a mounting member having a holding unit and a holding unit, the hook portion of the drive unit and the hook portion of the mounting member are attached across the gate beam portion, Grasp the chain guide with the holding part of the mounting member, attach the drive unit to the gate beam so that it is parallel to the top of the door on a plane, and connect the drive arm to the top of the door from the side. And the sliding door is slidably driven.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a drive mechanism for an automatic gate for a construction site according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a separated state before a drive unit for implementing the present invention is mounted on a large entrance / exit gate, FIG. 2 is a front view showing a part of the drive unit mounted on the gate, and FIG. FIG. 4 is a cross-sectional view taken along the line AA, FIG. 5 is a cross-sectional view taken from the line BB, and FIG. 6 shows a state in which the driving unit mounted on the gate is connected to the door. FIG. 7 is a longitudinal sectional side view of a main part shown in FIG.
Is a front view showing an embodiment of the roller chain belt in the driving section, and FIG. 8 is a plan view of the same.

In the figure, (1) is a drive unit,
(1a) shows a driving portion thereof, and a driving shaft (3) of a driving motor (2) composed of an induction motor provided along a beam portion (18a) of a gate (18) and a driven shaft provided opposite thereto. Sprockets (3a) (4a) of the support shaft (4)
Next, as shown in FIGS. 7 and 8, rollers (7a) protruding greatly from the link plate (7b) are sequentially connected by pins (7d), and an endless annular roller chain belt (7) is turned up and down. It is guided and supported by upper and lower chain guides (5a) and (5b) of a guide frame (5) which meshes and hangs as much as possible to open (6) one side surface along the driving direction of the belt (7), and turns the lower side. The base of the driving arm (8) is attached to a horizontal mounting piece (7c) (7c) provided by extending the upper side of a part of the link plate (7b) of the belt (7) by a bolt and nut, and the opening ( 6) (see FIG. 5).

The support shaft (4) is supported on an end of the guide frame (5) by an adjusting rod (4b) which can be advanced and retracted by a screw, thereby maintaining a constant tension state of the roller chain belt (7). In addition to this, it is effective in that the support distance of the support shaft (4) can be easily changed by adjusting the size of the gate (18) at the construction site according to the size (see FIGS. 2 and 3). .

As an embodiment of the driving arm (8), as shown in FIGS. 5 and 6, mounting members (7c) and (7c) of the belt (7)
The mounting guide (8a) and the guide arm (8
b) fasten the base consisting of
A vertical piece of an arm angle (8c) having an L-shaped cross section and having a length to the left and right is welded and fixed to the vertical tip of the guide arm (8b), and then comes out from an open portion (6) of the guide frame (5).

As an embodiment of a mechanism for mounting the drive section (1a) on the gate beam section (18a), a U-shaped cross section is engaged with an installation board (9) of a drive motor (2) to which a guide frame (5) is mounted. A part (10) is provided, and a mounting member (12) for attaching the guide frame (5) to the gate beam part (18a) symmetrically holds the two hanging pieces (13a) (13a) having an L-shaped cross section. In addition, the overlapping portion of the upper horizontal piece is fastened with a stat bolt nut (14) so as to be freely fastened as a holding portion (13) having a U-shaped cross section, and one of the holding pieces ( 13
A stopper (15a) is provided on the back side of the vertical side of (a), the base of the horizontal arm (15) with an L-shaped cross section is fixed by welding, and the holding piece (L) is formed on the vertical section at the front end. It is fastened to a vertical piece of 16a) with a bolt and nut (17) so as to be freely fastened, and formed with the horizontal arm (15) to form a holding portion (16) having a similar cross section C.

Based on the above embodiment, an example of mounting an automatic gate opening / closing drive unit on a large gate at a construction site is shown in FIGS.
6, an open / close guide (19) attached to the lower surface of the wide gate beam portion (18a) connected at the center over the entire length thereof is folded in an accordion shape and opened and closed. 20) A pulley (22) on a support rod (21) attached to each upper part of (20) is fitted, and a sliding ring provided at each lower part is loosely passed through a guide rope laid on the ground (not shown). ), Two drive units (1) and (1) are attached to the front and rear of the gate beam (18a) with respect to the doors (20) and (20) slidably suspended from the center side (each end) in a left and right opening manner. It is arranged symmetrically from the side, and each drive unit (1)
The engaging portions (10) and (10) of the motor (2) portion of (1) are respectively engaged in a state of straddling the beam portion (18a) from above and fastened with bolts and nuts (11) and (11) for mounting. The guide frame (5) is held from the side by the holding piece (16a) of the holding section (16) of the mounting member (12), and the bolt nut (1) is held.
7) and hold the beam, and hook the beam portion (18a) from above with the holding pieces (13a) (13a) of the opposite holding portion (13) and fasten with the stat bolt nut (14). The arm angle (8) of the drive arm (8) protruding from the open portion (6) of the guide frame (5) of the drive portion (1a).
c) is horizontally mounted on the upper end of each of the right and left doors (20) and (20) suspended from the gate beam (18a) with bolts and nuts via the spacer (8d) and the door plate (8e). Then, the driving unit (1a) is operated by a driving operation such as a remote control operation or a button operation, and the roller chain belt (7) is driven to automatically open and close the doors (20) and (20) from the center in a double-opening manner.

The drive unit (1) is mounted on the upper side surface of the gate beam (18a) and is driven from both sides by the drive arms extended forward and backward, although not shown, in addition to those described above. It is also conceivable that a gate having a relatively small width can be mounted so as to automatically open and close in a left-right direction using a single drive unit (1) using a single drive unit (1). The configuration of (10) and the mounting member (12) are also arbitrarily changed according to the mounting configuration, in addition to those described in the above embodiment, and the connection of the driving arm (8) to the opening / closing door (20) is also opened and closed. Opening and closing drive is also possible by attaching to a long support rod (20a) protruding above the door (20).

Further, in the above embodiment, the opening / closing door (20) which is suspended so as to be folded and opened in the form of an accordion door which is effective in that the storage space of the opening / closing door when opened is small.
Has been described, but it is also possible to equip folding doors with casters, and even a single sliding door with door storage space for opening and closing.

Roller (7a) is linked to link plate (7b)
In the embodiment in which the lower surface of the roller chain (7) that protrudes larger and turns up and down is guided and supported by the chain guides (5a) and (5b), the driving of the belt (7) becomes light and smooth, and the opening and closing door ( 20) is effective in that it can be quickly and easily opened and closed.

[0023]

The driving mechanism for an automatic gate for a construction site according to the present invention has the above-described structure, and includes a driving arm attached to an endless annular roller chain belt suspended on a sprocket of a driving shaft and a supporting shaft. By using a roller chain belt that is connected to the upper end of the shaft and does not have a risk of sliding in the process of transmitting the rotational force of the drive shaft, it prevents sliding (slip) unlike the conventional drive mechanism using a wire rope. It is not necessary to add resistance to the gate, and the torque of the drive shaft can be transmitted to the opening and closing of the gate without reducing by the resistance, so that the gate at the temporary gate at the entrance of the large vehicle at the construction site can be smoothly It can be opened and closed quickly, which shortens the opening and closing time of door opening and closing as large vehicles enter and exit, noise around the construction site,
There is a great benefit in minimizing environmental pollution due to exhaust gas and dust, and furthermore, obstructing general traffic as much as possible.Because it is driven by a roller chain belt, it can be used quickly at construction sites due to dimensional differences etc. Even when changing the dimensions of the drive unit, it is possible to easily and quickly adjust the dimensions simply by disassembling and adding the belt roller, link plate, and pin as the transmission unit and changing the support distance of the support shaft. There is an effect that can be done. In this invention,
Set on the drive motor board connected to the chain guide of the moving part.
Engage the girder and the mounting member with the gate beam
And along the gate beam of the drive section with the holding section of the mounting member.
Can be installed by holding the chain guide
Of the existing temporary gate as well as the new temporary gate.
Can be easily attached,
Quick opening and closing operation is more reliable,
It is possible to more easily cope with dimensional changes.

The drive unit is capable of being transported as a single unit, and has the ability and the linking mechanism for opening and closing the gate by driving the roller chain belt in a predetermined tensioned state only by energizing operation. The opening and closing operation can be performed immediately in response to an unexpected request from the construction site, and the gates of gates having different sizes and configurations can be easily adjusted in size and linked with the gates.

Furthermore, by combining the drive unit with the mounting member of the drive unit, the drive unit is easily and reliably mounted on the beam portions of the gates of different construction sites before and after being parallel to each other, so that the drive force can be transmitted most effectively from the horizontal direction. By the transmission of the drive arm, the gate can be opened and closed more lightly and quickly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a drive unit of an automatic gate for a construction site for implementing the present invention is installed in a large entrance gate.

FIG. 2 is a front view showing a drive unit mounted on a gate, with a part cut away.

FIG. 3 is a plan view showing a drive unit mounted on the gate, with a part cut away.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along line BB in FIG. 3;

FIG. 6 is a longitudinal sectional side view of a main part showing a state where a driving unit mounted on a gate is connected to an opening / closing door.

FIG. 7 is a front view showing an example of a roller chain belt of a driving unit.

FIG. 8 is a plan view of the roller chain belt of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drive unit 1a Drive part 2 Drive motor 3 Drive shaft 3a Sprocket 4 Support shaft 4a Sprocket 5a, 5b Chain guide 7 Roller chain belt 7a Roller 7b Link plate 7d Pin 8 Drive arm 9 Substrate 10 Hanging part 12 Mounting member 13 Hanging part 15 Horizontal arm 16 Holding part 18 Gate 18a Beam part 20 Door

Claims (6)

(57) [Scope of request for utility model registration] The method according to claim 1 supporting the door so as to slide open the gate of the construction site entrance, the gates composed so as to open and close by a drive motor, it is equipped Subeku faces along the closing direction to the beam portion of the gate Chain guide to guide the support shaft by hanging a roller chain belt connected endlessly around the drive shaft of the drive motor and the sprocket of the support shaft
Drive motor board attached to the chain guide
The engaging portion of the cross-sectional cumbersome U-shape provided by forming a driving portion, 該駆
U-shaped cross section and C-shaped section
Attachment part formed by connecting a similar holding part with a horizontal arm
With the material, attach the drive unit along the gate beam, and
A drive mechanism for automatic gates for construction sites, which has a drive arm mounted horizontally on a roller chain belt and attached to the upper end of the door. 2. The drive mechanism of an automatic gate for a construction site according to claim 1, wherein said opening / closing door is supported so as to be freely slidable left and right. 3. The driving unit according to claim 2, wherein the driving unit includes two driving units.
The parts are arranged symmetrically and attached, and left and right relative to the center
At the top of the two sliding doors supported to slide,
The driving mechanism for an automatic gate for a construction site according to claim 1 or 2, wherein the driving arms of the roller chain belt are respectively mounted . Wherein said drive unit, the roller of the roller chain belt also protrude from the link plates and hung so as to turn up and down, another turn to roller chain belt
The drive mechanism for an automatic gate for a construction site according to any one of claims 1 to 3, wherein the drive mechanism is supported by upper and lower chain guides provided with lower surfaces. 5. Equipment Subeku is facing along the closing direction
A chain guide is attached to the drive shaft of the installed drive motor and the sprocket of the support shaft so as to hang and guide the roller chain belt connected in an endless ring, and the drive motor board connected to the chain guide has a cross section U. A drive unit having a U-shaped engaging portion, a U-shaped engaging portion and a C-shaped section
Ri formed a holding portion which forms the shape similar shape and a mounting member formed by combining a horizontal arm, taken in a horizontal shape to a roller chain belt
A drive unit for an automatic gate for a construction site, with the attached drive arm coming out of the drive unit. 6. The driving unit is arranged so that the rollers of the roller chain belt protrude from the link plate and are hung so as to turn up and down, and the roller chain belts that are turned are connected to each other.
Claim 5 comprising a bottom surface of and受支upper and lower chain guide
Automatic gate drive unit for construction sites.