JPH1082263A - Traveling device of gate door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to protect a gate door and especially prevent its lower wheel form being shifted transversely and open and or close a gate door main body lightly and smoothly. SOLUTION: An engagement groove 14 is provided in a pair of front and rear rails 6 laid out on the ground 5 along the longitudinal direction. There are provided a wheel 10, which travels along each rail 6 and a fall preventive bracket 40, which is mounted on a wheel bracket 31, which supports the wheel 10 and is provided with an engagement section engageable with the engagement groove 14 on the lower part of a gate door 7 on both sides. A front section 11 is provided on the upper part of the engagement groove of each guide rail 6 along the longitudinal direction of the guide rail 6. A tapered guide wheel 46, which comes in contact with the front section 11 from outside and is guided, is turnably mounted with a spindle 38 of the wheel 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gate traveling device such as a telescopic gate.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 7-324576, a traveling device of a fall-prevention type in a telescopic gate or the like includes a pair of wheels and a fall-prevention bracket at a lower portion of a gate body. A pair of guide rails having a horizontal portion on which wheels roll and an upright portion rising from the inside of the horizontal portion are laid in a pair on the front and back of the ground side, and a belt for guiding the wheels on the horizontal portion of each guide rail. A plate-shaped guide plate for preventing lateral displacement is provided on the lower side of the vertical surface with an engagement groove that can be engaged with the overturn prevention bracket, and the engagement portion side of the overturn prevention bracket is on the guide rail when opening and closing the gate body. There is a structure that prevents lateral displacement of the gate main body while guiding the wheels with a guide plate so as to move in the engagement groove along.

[0003]

In the conventional traveling device, since the guide plate for guiding the wheels to prevent lateral displacement is a thin band-shaped plate, when the gate device is laterally displaced due to the application of an external force in the front-rear direction during opening and closing. In some cases, the wheel ends up over the guide plate, and the overturn prevention bracket abuts on the vertical surface of the guide rail. Then, if the gate body is opened and closed while the fall prevention bracket is in contact with the elevation of the guide rail, the fall prevention bracket will open and close while sliding along the elevation of the guide rail. The opening and closing operation of the gate body becomes very heavy, and the fall prevention bracket is deformed or abraded and damaged.
SUMMARY OF THE INVENTION In view of such a conventional problem, an object of the present invention is to provide a traveling device of a gate that can surely prevent lateral displacement of a gate main body and, in particular, wheels below the gate main body, and that can open and close the gate main body lightly and smoothly.

[0004]

According to the present invention, a pair of front and rear guide rails 6 laid on the ground 5 side are provided with engaging grooves 14 along the longitudinal direction thereof. A gate provided with a wheel 10 running along the guide rail 6 and a fall prevention bracket 40 mounted on a wheel bracket 31 supporting the wheel 10 and having an engaging portion 44 engageable with the engaging groove 14. In the traveling device, an upright surface portion 11 is provided above the engagement groove 14 of each guide rail 6 along the longitudinal direction of the guide rail 6, and the taper which is guided in contact with the upright surface portion 11 from outside is provided. A guide wheel 46 is rotatably mounted on a support shaft 38 of the wheel 10.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3, reference numeral 1 denotes a hanging side support, and 2 denotes a door stop side support. The hanging side support 1 and the door stop side support 2 are fenced at the left and right ends of the entrance 3.
It stands on the ground 5 close to 4. Reference numeral 6 denotes a guide rail, and the guide rail 6 is laid in the left-right direction on the ground 5 side between the suspension-side support 1 and the door stop-side support 2.

Reference numeral 7 denotes a telescoping gate main body. The gate main body 7 is disposed between the hanging column 1 and the door stop column 2 so as to open and close the entrance 3 along a guide rail 6. It is provided to extend and contract freely. This gate body 7
A number of vertical frame members 8 arranged vertically at equal intervals between the two pillars 1 and 2, a pantograph mechanism 9 for connecting the respective vertical frame members 8 in a stretchable manner, and wheels mounted on both sides of the lower portion. 10 and is equipped.

[0007] As shown in FIG.
Elevated surface portion 11, upper horizontal portion 12 that bends inward from the upper end of this raised surface portion 11, upper bent portion 13 that bends downward from the inner end of upper horizontal portion 12, and lower portion of the upright portion 11 An engagement groove 14 bent inwardly from the bottom, a lower horizontal portion 15 extending outward from a lower end side of the engagement groove 14, and a lower portion bent downward from an outer end of the lower horizontal portion 15 The upper horizontal portion 12, the upper bent portion 13, the engagement groove 14, the lower horizontal portion 15, and the lower bent portion 16 are provided over the entire length of the guide rail 6 in the longitudinal direction.

In addition, between the pair of guide rails 6, FIG.
As shown in FIG. 5, a filler 17 such as concrete is filled substantially flush with the upper horizontal portion 12 of each guide rail 6. The pair of front and rear guide rails 6 are connected to each other by a connecting member 18 such as an angle member.

Each of the vertical frame members 8 of the gate body 7 includes a pair of front and rear vertical bars 19 arranged at an interval in the front and rear, and a connecting member 20 for connecting the upper end of the vertical bar 19 to the front and rear. Former support 1
And, it is configured in an inverted U-shape so as to have substantially the same width as the door stop side support 2. The vertical frame member 8 at the end of the hanging side is fixed to the hanging column 1 via a metal fitting 21, and the vertical frame member 8 at the side end of the door stop is fixed to the end frame 23 through a metal fitting 22. . The end frame 23 has a handle 24 and a locking means 25, and can be locked by the locking means 25 in a state in which the end frame 23 is in contact with the door stop side support 2.

The pantograph mechanism 9 has a large number of upwardly inclined links 26 and downwardly inclined links 27 in an intersecting manner, and each of the inclined links 26, 27 is arranged between the front vertical bars 19 respectively. Each of the inclined links 26 and 27 intersects at the upper, middle, and lower portions at portions corresponding to the vertical frame members 8, respectively. The intersections on both the upper and lower sides are pivotally supported by the movable pivot 28, The central intersection is pivoted by a fixed pivot 29. The movable pivot 28 is vertically slidable along the vertical bar 19, and the fixed pivot 29 is fixed to the vertical bar 19.

As shown in FIGS. 4 and 5, the wheels 10 are attached to the second and central lower portions of the vertical frame member 8 from both ends of the gate body 7 via a connection frame 30 and a wheel bracket 31, respectively. I have. That is, a connecting frame 30 is disposed in the front-rear direction on the lower end side of the three vertical frame members 8, and a width determining member 32, a bolt 33, and a mounting bracket are provided above the front and rear end portions of the connecting frame 30.
The lower end of the vertical bar 19 is fixed via 34, and the wheel bracket 31 is fixed to the lower side by bolts 33.

The wheel bracket 31 includes a plate-shaped mounting portion 35 along the connecting frame 30 and a pair of inner and outer legs 36 and 37 projecting downward from the outer end of the mounting portion 35. The wheel 10 is interposed between the outer leg portion 36 and the inner leg portion 37, and is rotatably supported by a support shaft 38. Inner leg 37
6 and 7, a mounting groove 39 is formed in the longitudinal direction of the guide rail 6, as shown in FIGS.
A fall prevention bracket 40 is detachably attached via 39.

The mounting groove 39 has a dovetail shape in which the outer leg 36 opens, and a fitting portion 41 of a fall prevention bracket 40 is removably fitted to the mounting groove 39 from one end thereof. . Then, the fall prevention bracket 40 is attached to the mounting groove 39.
A tapping screw 43 is screwed into a screw hole 42 on the upper end side formed so as to straddle the and the fitting portion 41, thereby being fixed to the inner leg portion 37 of the wheel bracket 31.

As shown in FIGS. 4 to 6, the fall prevention bracket 40 has an L-shaped engagement portion 44 and a mounting portion 45, and a fitting portion 41 is provided on a side surface of the mounting portion 45. I have. When the external force in the front-rear direction acts on the gate body 7, the engagement portion 44 is engaged with the engagement groove of the guide rail 6 when the fall prevention bracket 40 is applied.
14 to prevent the gate body 7 from overturning, and the engaging portion 44 projects toward the guide rail 6 through the lower side of the inner leg 37 of the wheel bracket 31 to form the engaging groove. It is fitted so as to be able to engage within 14.

As shown in FIGS. 4 and 5, a guide wheel 46 is rotatably supported on the wheel bracket 31 by a support shaft 38 on the upright surface 11 side of the inner leg portion 37. The guide wheel 46 is a hollow member having a truncated cone 47 formed by pressing a sheet metal material into a truncated cone and a disc 48 fixed to the base of the truncated cone 47. The disk body 48 is rotatably supported by the support shaft 38 so that the inner leg portion 37 of the wheel bracket 31 is on the inner leg portion 37 side and the truncated cone 47 is on the upright surface portion 11 side. The guide wheel 46 is configured such that the truncated cone 47 is always in contact with the upper end of the upright portion 11 from the outer side. In FIG. 4, reference numeral 53 denotes a cover, which is detachably fixed by screws 49, bolts 50, etc., across the mounting bracket 34 and the wheel bracket 31. 51 is a width determining pipe, and 52 is a bush.

Next, the opening and closing operations of the telescopic gate having the above configuration will be described. If the gate body 7 is operated in the direction of expansion and contraction along the guide rail 6 while gripping the handle 24 on the door stop side, each of the inclined links 26 and 27 of the pantograph mechanism 9 moves around the movable pivot 28 and the fixed pivot 29, respectively. The gate body 7 expands and contracts by rotating.

For example, when the gate body 7 in the closed state is contracted, the handle 24 may be pushed toward the hanging side. Then, each inclined link 26, 27 of the pantograph mechanism 9 is
28 and 29, the pantograph mechanism 9 contracts in the left-right direction, and the space between the pair of adjacent vertical frame members 8 is shortened. Is in a contracted state.

On the other hand, when the gate body 7 expands and contracts, the respective wheels 10 on both lower sides thereof are supported on the lower horizontal portion 15 of the guide rail 6 by a support shaft.
It rolls while rotating around 38, and the gate body 7 runs along the guide rail 6. At this time, since the guide wheel 46 inside the wheel bracket 31 is always in contact with the elevation 11 of the guide rail 6, the wheel 10 travels on the lower horizontal portion 15 of the guide rail 6, and at the same time, the guide wheel 46 The guide body 6 is guided along the vertical surface 11 while rotating about the support shaft 38, whereby the lateral displacement of the gate body 7 in the front-rear direction can be reliably prevented.

For this reason, during opening and closing of the gate body 7,
As a result, the gate body 7 can be opened and closed lightly and smoothly along the guide rail 6 by preventing the fall prevention bracket 40 and the wheel bracket 31 from contacting the guide rail 6. Moreover, the guide wheel 46 is a truncated cone
47, and the tapered frustoconical body 47 is always in contact with the vertical surface 11 of the guide rail 6, so that the contact area between the guide wheel 46 and the vertical surface 11 is small. Become. Therefore, the friction between the guide wheel 46 and the upright portion 11 can be reduced, and the gate body 7 can be smoothly and quietly opened and closed smoothly.

Further, since the truncated cone 47 of the guide wheel 46 is always in contact with the vertical surface 11 of the guide rail 6, an external force in the front-rear direction is applied when the gate body 7 is opened and closed, so that one of the guide wheels Even if 46 attempts to ride on the elevation 11 of one of the guide rails 6, the gate body 7 is pushed back in the opposite direction by the truncated cone 47, so that the guide wheel 46 does not ride on the elevation 11 . Therefore, when the gate body 7 is opened and closed, it is not always necessary to push or pull the gate body 7 in parallel along the guide rail 6, and the gate body 7 is slightly obliquely moved.
Can be easily opened and closed.

Since the guide wheel 46 is rotatably supported by the support shaft 38 of the wheel 10, no special support structure for supporting the guide wheel 46 is required, and the structure can be simplified. Further, since the guide wheel 46 is composed of the truncated cone 47 and the disc body 48, the guide wheel 46 can be manufactured simply, lightly, and firmly.

The disk body 48 is connected to the inner leg of the wheel bracket 31.
Since the guide wheel 46 is supported by the support shaft 38 in the state of being on the 37 side, even if a large external force is applied to the guide wheel 46 from the upright surface 11 side, the peripheral edge side of the guide wheel 46 is It can be backed up by the legs 37, and damage such as deformation and breakage on the guide wheel 46 side can be reduced.

The fall prevention bracket 40 is a wheel bracket.
Since the mounting portion 45 is arranged on the wheel 10 side with respect to the inner leg portion 37 of the wheel 31, and the mounting portion 45 is fixed to the wheel bracket 31 on the wheel 10 side of the inner leg portion 37, the inner leg portion of the wheel bracket 31 37
The guide wheels 46 can be easily backed up by the inner leg portions 37 by forming the guide wheels 46 side in a flat shape.

The guide wheel 46 has a smaller diameter than the wheel 10 and the guide wheel 46 having the smaller diameter is arranged inside the inner leg 37 of the wheel bracket 31. In spite of preventing the lateral displacement, the appearance is not impaired by the guide wheels 46.

The fall prevention bracket 40 has its fitting portion 41 removably fitted into the mounting groove 39 of the inner leg portion 37, and is fixed by screwing a tapping screw 43 on the upper side over both of them. As a result, the mounting portion 45 side of the fall prevention bracket 40 can be securely fixed to the inner leg portion 37 of the wheel bracket 31, and the dimension in the thickness direction of the mounting portion between the wheel bracket 31 and the fall prevention bracket 40 is reduced. it can.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments. For example, in addition to the telescopic gate, the present invention can be applied to a non-stretchable sliding door type gate and the like, and can be widely used for all types of gates that run along the guide rail 6. Guide wheel 46
A frusto-conical shape made of a synthetic resin material such as nylon or a metal material, and the shaft 38 is formed through a width determining pipe or the like.
It may be configured to be supported by.

Further, the guide wheel 46 may be supported by the support shaft 38 of the wheel 10, and the wheel bracket 31 and the like may have a structure other than that of the embodiment. Further, the guide wheel 46 does not always need to be always in contact with the upright surface 11 of the guide rail 6, and there may be a slight gap between the two.

[0028]

According to the first aspect of the present invention, the ground
A pair of front and rear guide rails 6 laid on the 5th side are provided with engagement grooves 14 along the longitudinal direction thereof.On both lower sides of the gate body 7, wheels 10 running along each guide rail 6 and And a fall prevention bracket 40 having an engaging portion 44 which is mounted on the wheel bracket 31 supporting the engaging rail 14 and has an engaging portion 44 engageable with the engaging groove 14. A vertical surface 11 is provided on the upper side of the guide rail 6 along the longitudinal direction of the guide rail 6, and a tapered guide wheel 46 guided in contact with the vertical surface 11 from outside is supported by a spindle of the wheel 10.
Since it is rotatably mounted by 38, the following remarkable effects are achieved.

When the gate body 7 is opened and closed, the guide wheel 46 rotates along the vertical surface 11 of the guide rail 6, so that the gate body 7 can be reliably prevented from laterally shifting in the front-rear direction.
7 can be opened and closed lightly and smoothly along the guide rail 6. Since the guide wheel 46 has a tapered shape and the area of contact between the guide wheel 46 and the upright surface 11 of the guide rail 6 is reduced, friction can be reduced, and the gate body 7 can be opened and closed smoothly and quietly. Since the guide wheel 46 is tapered, this guide wheel
The guide rail 46 can reliably guide the guide wheel 46 without the 46 getting on the elevation 11 of the guide rail 6. Since the guide wheel 46 is rotatably supported by the support shaft 38 of the wheel 10, no special support shaft for the guide wheel 46 is required, and the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is a front view of a lower side of a telescopic gate showing one embodiment of the present invention.

FIG. 2 is a plan view of a rear side of a telescopic gate showing one embodiment of the present invention.

FIG. 3 is a partially cutaway side view of the telescopic door body showing one embodiment of the present invention.

FIG. 4 is a cross-sectional view of a traveling portion showing one embodiment of the present invention.

FIG. 5 is a front view of a traveling portion showing one embodiment of the present invention.

FIG. 6 is a side view of a tipping prevention bracket portion showing one embodiment of the present invention.

FIG. 7 is a perspective view of a fall-prevention bracket portion showing one embodiment of the present invention.

[Description of sign]

 5 Ground 6 Guide rail 7 Gate body 10 Wheel 11 Elevation section 14 Engagement groove 31 Wheel bracket 38 Support shaft 40 Fall prevention bracket 44 Engagement section 46 Guide wheel

Claims (1)

[Claims] A pair of front and rear guide rails (6) laid on the side of the ground (5) are provided with engagement grooves (14) along the longitudinal direction thereof. A wheel (10) running along the guide rail (6) and an engaging portion (44) mounted on a wheel bracket (31) supporting the wheel (10) and capable of engaging with the engaging groove (14). ) And a fall prevention bracket (40) having a fall prevention bracket (40), the upper surface of the guide rail (6), along the longitudinal direction of the guide rail (6), above the engagement groove (14) of each guide rail (6). Part (11), and a tapered guide wheel (46), which is brought into contact with the raised surface part (11) from the outside and is guided, is rotatably mounted on the support shaft (38) of the wheel (10). A featured gate traveling device.