JP4476103B2 - Telescopic gate - Google Patents

Description

  The present invention relates to a telescopic gate.

  The telescopic gate has a so-called hanger type in which the gate body is supported in a cantilever manner on one column without providing a caster device at the lower part of the gate body. The hanger-type telescopic gate does not need to be laid on the ground to guide the wheels of the caster device, and can be installed as it is even if there is unevenness or inclination on the ground. Because it does not receive, there is an advantage that can be opened and closed smoothly with light force. However, the gate body is made to expand and contract by a pantograph mechanism, and there is a clearance at the connecting part of the link material, etc., so that the tip side hangs down when the gate body is extended as the gate opening becomes larger. The leading vertical frame is unstable and tilted, and does not come into contact with the door-to-door support column, making it difficult to lock. Moreover, when the front end side of the gate body hangs down, the gate opening / closing operation becomes heavy. Therefore, the hanger-type telescopic gate is difficult to accommodate a large frontage.

In Patent Document 1, in a telescopic gate with a caster device, when the gate body is extended, the overturn prevention wheel descends to engage with an overturn prevention engagement tool provided on the ground, and when the gate body is contracted, the gate body falls over. The thing which made the wheel for prevention float is disclosed. The anti-tip wheels are provided so that they can be moved up and down to guide the lower part of the vertical frame and follow the undulations of the ground.When the gate body is extended, it is lowered by its own weight. It is lifted and floated by an engaging projection attached to the lower part of the frame. This fall-preventing wheel only prevents the gate body from overturning and does not support the weight of the gate body, so if such a fall-prevention wheel is used for a hanger-type telescopic gate, a load is applied. The fall-preventing wheel moves upward, and the gate body cannot be prevented from drooping.
JP 2002-295155 A

  The present invention has been made in view of the above-described circumstances, and has a feature of a hanger-type telescopic gate, but does not hang down when the gate body is extended, and can be used for a large frontage. The purpose is to provide.

  In order to achieve the above object, the telescopic gate according to the invention described in claim 1 includes a gate main body and a caster device, and the gate main body is formed of a plurality of vertical frames, a plurality of link members, and a plurality of shaft members. The caster device has an interlocking rod and a caster connected to the interlocking rod, and is attached to the vertical frame. The interlocking rod is engaged with the link material, and the link material The caster is in a position where it is moved upward when the gate body is fully opened, and is moved downward to be grounded as the gate body is extended.

  The telescopic gate according to the invention described in claim 2 is characterized in that, in addition to the structure of the invention described in claim 1, the caster is located above the lower end position of the vertical frame and is in the vertical frame when the gate body is fully opened. And

  The telescopic gate according to the invention of claim 3 includes a gate body and a caster device, and the gate body is expanded and contracted by a pantograph mechanism formed of a plurality of vertical frames, a plurality of link members, and a plurality of shaft members. Yes, the caster device has an interlocking rod and a caster connected to the interlocking rod, and the shaft member is attached to the link material and moves up and down by expansion and contraction of the gate body. It is engaged with the member and moves up and down as the shaft member moves up and down, and the caster is in a position that has moved upward when the gate body is fully opened, and moves downward to ground as the gate body extends. It is characterized by that.

  The telescopic gate according to the invention described in claim 4 is characterized in that, in addition to the configuration of the invention described in claim 3, the caster is located above the lower end position of the vertical frame and is in the gate body when the gate body is fully opened. And

  The telescopic gate according to the invention described in claim 5 includes a gate main body and a caster device, and the gate main body expands and contracts by a pantograph mechanism formed by a plurality of vertical frames, a plurality of link members, and a plurality of shaft members. Yes, the caster device has an interlocking plate and a caster connected to the interlocking plate, the interlocking plate has a curved guide groove, and a finding surface of one of the two adjacent vertical frames Is attached to one of the shafts inserted through the guide groove, and is attached to the finding surface of the other vertical frame by the other axis. The guide plate moves in the direction approaching the other shaft, and the interlocking plate rotates upward with the other shaft as a fulcrum. The caster is in the position moved upward when the gate body is fully opened. , As the gate body stretches It characterized in that it ground to move towards.

  The telescopic gate according to the invention described in claim 6 is characterized in that, in addition to the structure of the invention described in claim 5, the caster is in a position moved upward from the lower end position of the vertical frame when the gate body is fully opened.

  The telescopic gate according to the invention of claim 1 is such that when the interlocking rod of the caster device is engaged with the link material, the caster connected to the interlocking rod moves up and down as the gate body expands and contracts, As the gate main body extends, the caster moves downward to be grounded, and the caster device supports the gate main body from below, so that the gate main body can be prevented from drooping. Therefore, even when the frontage is large, it is possible to prevent the lock from becoming difficult to lock and the opening / closing operation from becoming heavy. Moreover, since the caster moves away from the ground during the operation of the gate body, it can be easily constructed regardless of the construction site as in the case of a conventional hanger type telescopic gate.

  Further, the telescopic gate according to the invention of claim 2 has the same effect as that of claim 1, and the caster is hidden in the vertical frame when the gate body is fully opened, and is a normal hanger type telescopic gate without a caster device. And the appearance is the same, and the design is good.

  The telescopic gate according to the invention of claim 3 is interlocked with the vertical movement of the shaft member when the gate main body expands and contracts by engaging the interlocking rod of the caster device with the shaft member pivotally attaching the link members. The caster connected to the rod moves up and down, and as the gate body extends, the caster moves downward and grounds, and the caster device supports the gate body from below, so that the gate body can be prevented from drooping. Therefore, even when the frontage is large, it is possible to prevent the lock from becoming difficult to lock and the opening / closing operation from becoming heavy. Moreover, since the caster moves away from the ground during the operation of the gate body, it can be easily constructed regardless of the construction site as in the case of a conventional hanger type telescopic gate.

  Furthermore, the telescopic gate according to the invention of claim 4 has the same effect as that of claim 3, and since the caster is not exposed to the outside from the gate main body when the gate main body is fully opened, it is a normal hanger type without a caster device. The exterior of the telescopic gate is the same, and the design is good.

  The telescopic gate according to the fifth aspect of the invention is such that the interlocking plate of the caster device rotates in conjunction with the expansion and contraction of the gate body, the caster moves downward and grounds as the gate body extends, and the caster device attaches the gate body. Since it is supported from below, it can prevent the gate body from hanging down. Therefore, even when the frontage is large, it is possible to prevent the lock from becoming difficult to lock and the opening / closing operation from becoming heavy. Moreover, since the caster moves away from the ground during the operation of the gate body, it can be easily constructed regardless of the construction site as in the case of a conventional hanger type telescopic gate. Moreover, since the caster device is attached to the finding surface of the vertical frame of the gate body, it can be easily attached to the gate body.

  Further, the telescopic gate according to the invention of claim 6 has the same effect as that of claim 5 and is in a position where the caster moves upward from the lower end position of the vertical frame when the gate body is fully opened, and below the gate body. Since casters do not pop out, the design is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 6 show a first embodiment of the telescopic gate of the present invention. As shown in FIG. 6, the telescopic gate is a gate main body that expands and contracts by a suspension column 15 and a door-to-door column 16 erected from the ground 41 with a space left and right and a pantograph mechanism 8 disposed between both columns. 1 is provided.

  The gate body 1 includes a plurality of intermediate vertical frames 5 connected to the pantograph mechanism 8, the intermediate vertical frame 5 at the hanging side end, the hanging side end vertical frame 4, and the intermediate vertical side at the door end side. The door end side vertical frame 3 is connected to the frame 5 by a metal fitting 17, and the suspension side end vertical frame 4 is attached to and supported by the suspension column 15 by a hinge 18. On the door end side end vertical frame 3, a pulling handle 19 for opening and closing and a lock 20 are attached. As shown in FIG. 4, the intermediate vertical frame 5 and both end vertical frames 3 and 4 connect the two vertical members 21 arranged at an interval on the road side and the site side, and the vertical member 21 at the upper end. The pantograph mechanism 8 is arranged inside the frame. The pantograph mechanism 8 includes a large number of link members 6a located on the near side and inclined downward to the right and link members 6b located on the back side and inclined upward to the right. Each intersection of the link members 6a and 6b includes The shaft member 7 is pivotally mounted so as to be relatively rotatable. As shown in FIG. 5, the shaft member 7a provided at the upper end portion of the link members 6a and 6b is attached to both ends with rollers 23 and guided to the intermediate vertical frame 5 so as to be movable up and down, and the link members 6a and 6b. The shaft member 7 b provided at the intersection of the third height from the bottom is fixed to the intermediate vertical frame 5.

  A caster device 2 is attached to the inside of the door end side end vertical frame 3. As shown in FIGS. 4 and 5, the caster device 2 includes an interlocking bar 10 having a U-shaped cross section disposed in the vertical direction inside the door end side end vertical frame 3 and a caster connected to the lower end of the interlocking bar 10. It has the fixture 24 and the caster 9 attached to the lower surface of the caster fixture 24. As shown in FIG. 1, the interlocking rod 10 has an upper end connected to a shaft member 7 a that connects the upper end of the uppermost link member 6 a to the adjacent intermediate vertical frame 5 by an engagement fitting 25. It is. As shown in FIG. 3, the engagement fitting 25 is composed of two members that hold the shaft member 7 a from above and below. The caster fixture 24 has a connecting portion 26 that fits inside the interlocking rod 10 at the top, and a lower end portion of the interlocking rod 10 is fixed to the connecting portion 26 with a bolt 27 and a back plate 28. As shown in FIG. 3, the hole through which the bolt passes is a long hole 29 in the vertical direction, and the height of the caster attachment 24 and the caster 9 can be adjusted vertically within the range of the long hole 29. Further, as shown in FIG. 5, rollers 30 are attached to the front and rear surfaces of the caster fixture 24, and the rollers 30 are guided to the door end side end vertical frame 3 so as to be movable up and down.

As shown in FIG. 1, when the gate body 1 is extended and the gate is closed, the caster 9 of the caster device 2 is grounded to the ground 41, and the interlocking rod 10 of the caster device 2 is pivoted to the upper end of the link member 6a. Since it is connected to the member 7a via the engagement fitting 25, the caster 9 does not move upward, and the caster device 2 lifts the door-end side end of the gate body 1 from below, and the gate The drooping on the door-to-door side of the main body 1 is suppressed. The door end side vertical frame 3 is stable because the caster 9 is in contact with the ground, and the tilt is also suppressed, so that it is difficult for the lock 20 to be locked and the gate body 1 opening / closing operation becomes heavy. it can. Since the caster 9 can be adjusted in height, the gate body 1 can be prevented from drooping by appropriately adjusting the height of the caster 9 according to the unevenness or inclination of the soil at the construction site. It can be shown to the fullest.
When the gate body 1 is contracted, the interval between the intermediate vertical frames 5 is uniformly reduced, and the link members 6a and 6b rotate in a direction in which the inclination is steep with the shaft member 7b fixed to the intermediate vertical frame 5 as a fulcrum. The shaft member 7a provided at the upper end of the link member 6a moves upward. Along with this, the caster device 2 also moves upward, and as shown in FIGS. 2 and 4, when the gate body 1 is fully opened, the caster 9 rises to a position higher than the lower end position of the door stop side end vertical frame 3. Then, it is stored in a space A (a space between the road-side vertical member 21 and the site-side vertical member 21) within the frame of the vertical frame 3. Therefore, the appearance when the gate is fully opened is the same as a normal hanger type telescopic gate without a caster device. The caster 9 is grounded only when the gate body 1 is closed to a state close to being fully closed, so that the caster 9 can be opened and closed lightly, and can be installed as it is even if the ground is uneven or inclined. Easy to install.

  7 to 10 show a second embodiment of the telescopic gate of the present invention. The structure of the gate body 1 is the same as that of the first embodiment, but the place where the caster device 2 is provided is different. In the present embodiment, as shown in FIG. 7, the caster device 2 is provided between the intermediate vertical frame 5 at the end on the door stop side and the adjacent intermediate vertical frame 5. As shown in FIG. 9, the caster device 2 includes two square pipe-like interlocking rods 10 spaced apart in the front-rear direction, and the lower ends of both interlocking rods are connected by caster attachments 24. A caster 9 is attached to 24. As with the first embodiment, the caster 9 can be adjusted in height by moving the caster fixture 24 up and down within the range of the long hole 29. The interlocking rod 10 has a through hole 31 at the upper end portion and an elongated hole 32 in the vertical direction at the lower portion. As shown in FIGS. 9 and 10, the second height from the top of the link members 6a and 6b. The shaft member 7c that is pivotally attached to each other at the crossing portion is inserted through the through-hole 31 of the interlocking rod 10, and is located below the crossing portion at the second height from the bottom of the link materials 6a and 6b. 7d, the shaft member 7d that pivotally attaches the link members is inserted into the elongated hole 32 of the interlocking rod 10 and attached. Spacers 33 are installed between the link members 6a and 6b and the interlocking rods 10 and between the interlocking rods 10 so that the interlocking rods 10 do not move back and forth or tilt.

  When the gate body 1 is extended, the upper shaft member 7c is lowered, and when the gate body 1 is contracted, the coaxial member 7c is raised, and accordingly, the caster device 2 is also moved up and down. When the gate body 1 is fully closed, the caster 9 of the caster device 2 is grounded as shown in FIG. 7 to prevent the gate body 1 from drooping. When the gate body 1 is fully opened, FIG. As shown in FIG. 9, the caster 9 moves upward from the lower end position of the intermediate vertical frame 5, and is connected to the road-side vertical member 21 and the site-side vertical member 21 of the intermediate vertical frame 5 in the gate body 1. It is stored in the sandwiched space A.

  11 and 12 show a third embodiment of the telescopic gate of the present invention. The structure of the gate main body 1 is the same as that of the first embodiment, but the structure of the caster device 2 and the position where it is provided are different. The caster device 2 includes an interlocking plate 11 and a caster 9 connected to the lower end of the interlocking plate 11, an intermediate vertical frame 5 at the end on the door stop side, and a front side of the second intermediate vertical frame 5 from the end. It is attached to the lower part of the rear-side finding surface 34 so as to straddle the interlocking plate 11. The interlocking plate 11 has an approximately semicircular arc-shaped arm portion 35 that is curved upward and extends from the middle portion in the vertical direction toward the suspension base, and the curved guide groove extends from the base portion to the tip portion of the arm portion 35. 12 is formed. A through hole 36 is provided in the upper part of the interlocking plate 11, and both screw bolts 14 provided in the lower part of the intermediate vertical frame 5 at the door end side end in the front-rear direction are inserted into the through hole 36. It is tightened with a nut 37. Both screw bolts 13 are also provided in the lower part of the second intermediate vertical frame 5 from the end so as to penetrate in the front-rear direction, and the both screw bolts 13 are inserted into the guide grooves 12 of the interlocking plate 11. Spacers 42 are provided between the vertical frame finding surface 34 and the interlocking plate 11 and between the interlocking plate 11 and the nut 37. The lower end portion of the interlocking plate 11 is bent at right and left at the front and back to provide a caster mounting portion 38, and a bolt 39 protruding from the caster 9 is inserted into the caster mounting portion 38 and fixed with a nut 40 from above and below. Height adjustment is possible.

  When the gate body 1 is extended, the interval between the intermediate vertical frames 5 increases, and both screw bolts 13 of the second intermediate vertical frame 5 move from the root side of the arm portion 35 toward the tip side of the guide groove 12. When the interlocking plate 11 pivots downward with the two screw bolts 14 of the intermediate vertical frame 5 at the door end side as a fulcrum and conversely contracts the gate body 1, the two screw bolts 13 of the second intermediate vertical frame 5. Moves to the base side of the guide groove 12, so that the interlocking plate 11 rotates upward with both screw bolts 14 of the intermediate vertical frame 5 at the door end side as a fulcrum. When the gate body 1 is fully closed, as shown in FIG. 11, the two screw bolts 13 of the second intermediate vertical frame 5 are positioned at the tip of the guide groove 12, and the caster 9 is grounded to the ground 41. Thus, the drooping of the door body 1 on the door contact side is suppressed. When the gate body 1 is fully opened, the caster device 2 is rotated 90 ° upward as indicated by a two-dot chain line in FIG. 11, and the caster 9 is moved above the lower end positions of the vertical frames 3 and 5. For this reason, when the gate body is viewed from the front, the casters do not protrude below the gate body, so that the casters can be made inconspicuous.

  The present invention is not limited to the embodiments described above. Although it is effective to provide the caster device at the door-end side end of the gate body as much as possible, the caster device may be provided at a position somewhat moved to the suspension base side.

It is a front view which shows 1st embodiment of the expansion-contraction gate of this invention, Comprising: The door stop side in the state which closed the gate is shown. It is a front view which shows 1st embodiment of the expansion-contraction gate of this invention, Comprising: The door stop side edge part of the gate main body when a gate is fully opened is shown. It is a front view which shows the structure of the connection part of an interlocking rod and a link material, and the connection part of an interlocking rod and a caster. It is a side view of the door stop side of the gate body when the gate according to the first embodiment is fully opened. It is AA sectional drawing in FIG. It is a whole front view which shows 1st embodiment of the expansion-contraction gate of this invention. It is a front view which shows 2nd embodiment of the expansion-contraction gate of this invention, Comprising: The door stop side in the state which closed the gate is shown. It is a front view which shows 2nd embodiment of the expansion-contraction gate of this invention, Comprising: The door stop side edge part of the gate main body when a gate is fully opened is shown. It is a side view of the door stop side of the gate body when the gate according to the second embodiment is fully opened. It is BB sectional drawing in FIG. It is a front view which shows 3rd embodiment of the expansion-contraction gate of this invention, Comprising: The lower part of the door stop side in the state which closed the gate is shown expanding It is CC sectional drawing in FIG.

Explanation of symbols

1 Gate body 2 Caster device 3 Door end side vertical frame (vertical frame)
4 Suspension side end vertical frame (vertical frame)
5 Intermediate vertical frame (vertical frame)
6a, 6b Link material 7, 7a, 7b, 7c, 7d Shaft member 8 Pantograph mechanism 9 Caster 10 Interlocking rod 11 Interlocking plate 12 Guide groove 13 Double screw bolt (one shaft)
14 Double screw bolt (the other shaft)
34 Vertical frame finding surface

Claims (6)

  It is equipped with a gate body and a caster device, and the gate body is expanded and contracted by a pantograph mechanism formed by a plurality of vertical frames, a plurality of link members, and a plurality of shaft members. The caster device is interlocked with an interlocking rod. It has a caster connected to the bar and is attached to the vertical frame, and the interlocking bar is engaged with the link material and moves up and down as the link material moves up and down. A telescopic gate that is sometimes in a position that has been moved upward, and that moves downward and comes in contact with the gate body as it extends.   2. The telescopic gate according to claim 1, wherein the caster is located in the vertical frame by moving upward from the lower end position of the vertical frame when the gate body is fully opened.   It is equipped with a gate body and a caster device, and the gate body is expanded and contracted by a pantograph mechanism formed by a plurality of vertical frames, a plurality of link members, and a plurality of shaft members. The caster device is interlocked with an interlocking rod. And a caster coupled to the rod, and the shaft member pivots the link members together and moves up and down by expansion and contraction of the gate body. The interlocking rod is engaged with the shaft member, and the shaft member A telescopic gate that moves up and down as the gate moves up and down, and that the caster is in a position that has moved upward when the gate body is fully open, and that the caster moves downward and contacts the ground as the gate body extends.   4. The telescopic gate according to claim 3, wherein the caster is moved upward from the lower end position of the vertical frame when the gate main body is fully opened and is in the gate main body.   It is equipped with a gate body and a caster device, and the gate body is expanded and contracted by a pantograph mechanism formed by a plurality of vertical frames, a plurality of link members, and a plurality of shaft members. The caster device is interlocked with an interlocking plate. The interlocking plate has a curved guide groove, and is pivoted by one shaft having the guide groove inserted into the finding surface of one of the two adjacent vertical frames. It is attached to the locating surface of the other vertical frame by the other axis, and when the interval between the vertical frames is narrowed, one axis approaches the inside of the guide groove closer to the other axis. The interlocking plate rotates upward with the other shaft as a fulcrum, and the caster is in a position moved upward when the gate body is fully opened, and moves downward as the gate body extends. It is characterized by grounding Expansion and contraction gates. 6. The telescopic gate according to claim 5, wherein the caster is in a position moved upward from the lower end position of the vertical frame when the gate body is fully opened.

Images