JPH0658096U - Expansion gate fall prevention device - Google Patents

Abstract

(57) [Summary] [Purpose] Easy to operate by simply expanding and contracting the expandable gate main body along its expansion and contraction path, and it is possible to make adjustments after installation so that positional accuracy during installation is not required and installation is easy. To do so. [Structure] A fall prevention bracket 20 having an engaging portion 29 at a lower end thereof is provided at a lower portion of an arbitrary vertical rail 7 of the expandable gate main body 4, and the engaging portion 29 extends vertically, forward and backward, and in an expandable direction of the expandable gate main body 4. It is attached via the mounting bracket 19 so that it can be adjusted.
The engaging portion 29 of the fall prevention bracket 20 is engaged on the extension path of the extension gate body 4 on the side when the extension gate body 4 is maximally extended, and the fall prevention bracket 20 is engaged when the extension gate body 4 is extended and contracted. Receiver 21 having an engaged portion 37 with which the portion 29 engages
Is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a fall prevention device for a telescopic gate.

[0002]

[Prior art]

 Conventionally, a drop rod type fall-prevention device has been used for the expandable gates to prevent the expandable gates from swaying or falling due to strong wind or external force when the expandable gate body is maximally extended.

This conventional drop rod type fall prevention device is designed such that, after maximally extending the extension gate main body, the drop rod is dropped downward to a fitting hole provided in the extension path of the extension gate main body on the ground side. When the telescopic gate body is expanded or contracted, the drop rod is pulled up and pulled out from the insertion hole, and the lock is released.

[0004]

[Problems to be solved by the device]

 However, the conventional drop rod type fall prevention device has a problem that the operation is troublesome and troublesome because the drop rod needs to be operated by hand after the expansion / contraction gate body is extended or contracted.

Further, since the drop rod on the side of the expandable gate body is removably inserted into the insertion hole on the ground side, the variation in the distance between the lower end of the expandable gate body and the ground side does not pose a problem, but the expandable gate door Positioning accuracy in the front-back direction and expansion / contraction direction of the main body is required, and there is also a problem that construction is troublesome.

That is, it is common to bury a pipe or the like on the ground side as a fitting hole, but it is impossible to adjust the position of the pipe after construction, and the drop rod is also used in front of the telescopic gate body. Also, it cannot be adjusted in the direction of expansion and contraction. Therefore, at the time of construction, it is necessary to strictly determine the embedding position of the pipe so that the drop rod and the fitting hole are vertically aligned with the extension gate main body being maximally extended. There are unavoidable drawbacks.

In view of the above conventional problems, the present invention can be easily operated by simply expanding and contracting the expandable gate main body along its expansion and contraction path, and it is possible to make adjustments after the installation so that the positioning accuracy at the time of installation is high. The purpose is to facilitate construction without any requirement.

[0008]

[Means for Solving the Problems]

 According to the present invention, a fall prevention bracket 20 having an engaging portion 29 at a lower end is provided at a lower portion of any vertical rail 7 of the expandable gate main body 4, and the engaging portion 29 causes the expandable gate main body 4 to move up and down, forward and backward. Also, it is attached via a mounting bracket 19 so that it can be adjusted in the direction of expansion and contraction, and the engaging portion 29 of the fall-prevention bracket 20 is located on the expansion and contraction path a of the expansion gate main body 4 on the ground 3 side when the expansion gate main body 4 is maximally extended. The receiver 21 is provided which has an engaged portion 37 which is engaged with and engages with the engaging portion 29 of the fall prevention bracket 20 when the extendable gate main body 4 is extended and contracted.

[0009]

[Action]

 At the time of opening and closing, the expansion / contraction gate body 4 is expanded / contracted along the expansion / contraction path a. Then, when the expandable door main body 4 is extended, the engaging portion 29 of the fall prevention bracket 20 engages with the engaged portion 37 of the receiving tool 21, and the engaging portion 29 disengages from the engaged portion 37 when contracted. . This eliminates the need to engage and disengage when opening and closing. When the expandable gate main body 4 is extended to the closed state, the engaging portion 29 of the fall prevention bracket 20 engages with the engaged portion 37 of the receiver 21 to prevent the expandable expandable gate body 4 from swinging sideways and falling. .

At the time of construction, after installing the receiver 21 on the ground 3 side, the position of the engaging portion 29 of the fall prevention bracket 20 is adjusted in the up / down direction, the front / rear direction, and the extending / contracting direction with respect to the expandable gate main body 4, and this engaging part is adjusted. 29 is matched with the engaged portion 37 of the receiving tool 21. Therefore, the positional accuracy of the receiving tool 21 is not required during construction.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 8 illustrate a first embodiment of the present invention. 1 and 2 show a telescopic gate, 1 is a suspension-side pillar, 2 is a door stop-side pillar, and each of these pillars 1 and 2 is formed in an inverted U shape, and is located on the left and right of the entrance and exit of a garage or the like. It is erected on the ground 3 at both ends.

Reference numeral 4 denotes a telescopic gate main body, which is provided between the hanging base side pillar 1 and the door stop side pillar 2 so as to open and close the opening. The expandable gate main body 4 is arranged in the up-down direction at equal intervals in the frontage direction between the suspension-side end frame 5 and the door-stop side end frame 6 arranged in the up-down direction. It is provided with a large number of vertical bars 7 and two upper and lower rows of pantograph mechanisms 8 which connect the vertical bars 7 to each other so that they can expand and contract with each other.

The end frames 5 and 6 and the vertical bars 7 have an inverted U-shape having substantially the same width as the columns 1 and 2, and the suspension-side end frame 5 is attached to the suspension-side column 1 via a hinge 9. The door stop side end frame 6 is swingably connected about an axis in the up-and-down direction, and the door stop side end frame 6 has handles 10 for opening and closing on both sides in the front-rear direction of the expandable gate body 4, and the expandable gate body 4 is in a closed state. Has a locking device for locking the strut 2 on the door stop side.

Of the many vertical rails 7, the vertical rails 7 at both ends of the telescopic gate main body 4 in the direction of expansion and contraction are integrally formed on the suspension base side end frame 5 and the door stop side end frame 6, respectively. Castor wheels 11 are attached to both the inside and outside of the vertical crosspiece 7 integrally formed with the crosspiece 7 and the door stop side end frame 6.

Each pantograph mechanism 8 is provided in an inverted U-shaped vertical bar 7. Then, each pantograph mechanism 8 has two upper and lower slanting bars 12, 13 which are arranged in an intersecting manner so as to intersect each vertical bar 7 at three positions in the vertical direction. It is composed of many groups.

Each diagonal crosspiece 12, 13 is flexibly supported by a pivot 14 at three upper and lower intersections corresponding to each vertical crosspiece 7, and the two lower diagonal crosspieces 12, 13 are adjacent to each other. A bending shaft is flexibly supported by a pivot 15 at an intersection between a pair of vertical rails 7 which are fitted to each other. Of the three upper and lower pivots 14, the central pivot 14 is the outside of the fixed plate 17 with both end surfaces abutting against the strip-shaped fixed plate 17 fixed in the guide groove 16 of each vertical bar 7. It is fixed to a fixed plate 17 by a rivet driven from above, and the pivots 14 on both upper and lower sides thereof are fitted by a guide groove 16 of the vertical bar 7 so as to be vertically movable.

Reference numeral 18 denotes a fall prevention device for preventing the telescopic gate body 4 from tipping in the front-rear direction. As shown in FIGS. 3 and 4, a mounting bracket 19 is provided at the center of the telescopic gate body 4 on the vertical rail 7 side. The anti-tilt bracket 20 attached via the and the expandable gate main body 4 are extended to the maximum extension state, and when extended to the closed state, the expandable gate main body 4 extends vertically to correspond with the anti-tilt bracket 20 on the ground 3 side. 4 and a receiving member 21 provided on the expansion / contraction path a.

As shown in FIG. 5, the mounting bracket 19 has a U-shape having a horizontal portion 22 and a pair of upward leg portions 23 bent upward from both ends of the horizontal portion 22. The horizontal portion 22 has two longitudinal holes 24 in the front-rear direction of the expandable gate body 4, and each upward leg 23 has two vertical holes 25 in the vertical direction. The mounting bracket 19 has vertical legs 23 that are inserted upward from the lower ends of the vertical rails 7 and are attached by two mounting screws 26 that are screwed into the fixing plate 17 side through the long holes 25. It is attached to 7 so that it can be adjusted vertically.

As shown in FIG. 5, the fall prevention bracket 20 is wider than the mounting bracket 19 in the expansion / contraction direction of the expansion / contraction gate body 4, and is bent downward from the horizontal portion 27 and both ends of the horizontal portion 27. It comprises a pair of downward leg portions 28 formed and a pair of engaging portions 29 that are bent inward from the lower end of the downward leg portions 28 so as to face each other. Is configured. The fall prevention bracket 20 is provided with two long holes 30 in the horizontal portion 27 in the extension / contraction direction of the extension / retraction gate body 4.

The fall prevention bracket 20 is inserted into the long holes 24 and 30 of both horizontal portions 22 and 27 with the horizontal portion 27 thereof being superposed on the lower side of the horizontal portion 22 of the mounting bracket 19. Further, the two mounting bolts 31 and the nuts 32 screwed onto the mounting bolts 31 are adjustably fastened in the expansion / contraction direction and the front-rear direction of the expansion / contraction gate body 4.

As shown in FIGS. 6 to 8, the receiver 21 includes a central protrusion 34 formed on the upper surface of a disk-shaped main body 33 along the expansion / contraction path a of the expansion / contraction gate main body 4, and a center portion of the central projection 34. The protrusions 34 are provided with side protrusions 36 formed on both sides in the width direction of the protrusions 34, and the central protrusions 34 are provided on both sides of the center portion in the longitudinal direction of the protrusions 34 so as to protrude toward the respective groove portions 35. The joint 37 is integrally formed. The receiving member 21 is formed in a flat spherical shape in which the center of the upper surface of each protrusion 34, 36 is the highest, and the bolt 39 inserted into the mounting hole 38 of the center protrusion 34 allows the floor 3 It is fixed to the anchor tube 40 embedded in the.

In the engaged portion 37, the pair of engaging portions 29 of the fall prevention bracket 20 are disengaged from the respective groove portions 35 side when the expandable and retractable gate main body 4 is expanded and contracted, and the expandable and retractable gate main body 4 is maximally extended to a closed state. At this time, the engaging portions 29 of the fall prevention bracket 20 are engaged with each other to prevent the expansion gate body 4 from falling through the fall prevention bracket 20. A caster mounting bracket 42 is fixed to both sides of the lower end of the vertical crosspiece 7 at the center and at the door stop end side with screws 41, and the caster wheels 11 are mounted on the caster mounting bracket 42.

In the expandable gate with the fall prevention device 18 having the above-described configuration, when the expandable gate main body 4 is closed from the contracted open state, the handle 10 of the doorstop side end frame 6 is held and the doorstop side column 2 Pull to the side.

Then, the caster wheels 11 roll on the ground 3, and the telescopic door main body 4 sequentially extends along the telescopic path a. Then, when the expandable door main body 4 is extended to the maximum extension state, the engaging portions 29 at the lower ends of the pair of downward leg portions 28 of the fall prevention bracket 20 enter the pair of groove portions 35 of the receiving member 21 and the central protrusion portion. It engages with the engaged portions 37 on both sides of 34.

Therefore, the pair of engaging portions 29 of the fall prevention bracket 20 can be automatically engaged with the engaged portion 37 of the receiving member 21 by simply extending the expandable gate main body 4. No special operation is required.

When the engaging portion 29 of the fall prevention bracket 20 engages with the engaged portion 37 of the receiving member 21, the door-stop side end frame 6 is then brought into contact with the door-stop side column 2. Then, the door stop side end frame 6 is locked to the door stop side strut 2 by the locking device, and is brought into a completely closed state.

In this closed state, the pair of engaging portions 29 of the fall prevention bracket 20 engage with the engaged portions 37 on both sides of the central protruding portion 34 of the receiving member 21 from below, so that the expandable gate body 4 On the other hand, even if a strong wind or an external force acts in the front-rear direction, one of the pair of engaging portions 29 of the fall prevention bracket 20 is caught by the pair of engaged portions 37 of the receiving tool 21 and locked. Therefore, it is possible to prevent the extension gate body 4 from sideways swinging or falling.

To open the telescopic gate, after releasing the lock, the handle 10 is pulled and the telescopic gate body 4 is contracted while pulling the telescopic gate body 4 toward the suspension base 1 side. At this time, since the pair of engaging portions 29 of the fall prevention bracket 20 are disengaged from the engaged portions 37 of the receiving tool 21, the engaging state can be automatically released.

Therefore, when opening and closing the expandable gate, the engaging part 29 is automatically engaged with and disengaged from the engaged part 37 by simply expanding and contracting the expandable gate body 4 along the expandable path a. Unlike the conventional drop rod type, it is not necessary to manually operate each time it is opened and closed, it is easy to open and close, and operability is significantly improved.

Further, since the upper surface of the receiving member 21 has a flat spherical shape, the amount of protrusion from the ground 3 can be reduced, and particularly when the expansion / contraction gate body 4 is expanded / contracted, it is slightly separated from the expansion / contraction path a in the inward / outward direction. Even if the caster wheel 11 on the door stop side interferes with the receiving tool 21, it can easily pass over the receiving tool 21, and the receiving tool 21 will not be an obstacle.

The mounting bracket 19 can be adjusted up and down with respect to the vertical rail 7 within the range of the long hole 25 by loosening the mounting screw 26 for fixing the upward leg portion 23 to the vertical rail 7. Further, the fall prevention bracket 20 can be adjusted in the front-back direction and the extension / contraction direction of the expandable / retractable gate body 4 within the range of the elongated holes 24, 30 by loosening the mounting bolt 31 and the nut 32.

Therefore, even if there is some positional deviation between the fall prevention bracket 20 and the receiving member 21 in the up-down direction, the front-rear direction, and the expansion-contraction direction after the construction, the mounting bracket 19 is adjusted in the up-down direction to prevent the fall. By adjusting the prevention bracket 20 in the front-rear direction and the expansion / contraction direction, the engagement portion 29 of the fall prevention bracket 20 can be easily matched with the engaged portion 37 of the receiving tool 21. Therefore, the positional accuracy of the receiving tool 21 installed on the ground 3 is not required so much, and the work can be easily performed.

FIG. 9 shows a second embodiment of the present invention, in which the upward leg 23 of the mounting bracket 19 is inserted into and fixed to the vertical rail 7, while the horizontal part 22 of the mounting bracket 19 and the fall prevention bracket are attached. The 20 horizontal parts 27 are connected via two long mounting bolts 43 so as to be adjustable in three directions.

Each mounting bolt 43 is inserted into the long hole 24 of the horizontal portion 22 of the mounting bracket 19 and fixed with the nut 44, and is also inserted into the long hole 30 of the horizontal portion 27 of the fall prevention bracket 20. Then, the fall-prevention bracket 20 is fixed to the mounting bolt 43 by nuts 45 and 46 screwed onto the attachment bolt 43 on both upper and lower sides of the horizontal portion 27 of the fall-prevention bracket 20.

Therefore, by loosening the nut 44, the mounting bolt 43 can be adjusted in the front-rear direction, and by loosening either one of the nuts 45 and 46, the fall prevention bracket 20 can be adjusted in the expansion / contraction direction. Further, by changing the screwing positions of the nuts 45 and 46 up and down, the fall prevention bracket 20 can be adjusted up and down, so that the same adjustment as in the first embodiment is possible.

10 and 11 show a third embodiment of the present invention, in which the fall prevention bracket 20 has a T-shape. The fall prevention bracket 20 is provided with one downward leg portion 28 at the center of the horizontal portion 27, and a pair of engaging portions 29 is provided on both sides of the lower end of the downward leg portion 28.

On the other hand, the receiving member 21 has a groove 35 formed in the center thereof, and a pair of engaged portions 37 projecting from both sides are provided on the upper end opening side of the groove 35. Also in this case, since the pair of engaging portions 29 of the fall prevention bracket 20 engage with the pair of engaged portions 37 of the receiving tool 21, it is possible to prevent lateral expansion and fall of the expandable gate main body 4.

12 and 13 show a fourth embodiment of the present invention, in which the mounting bracket 19 is fixed to the vertical rail 7, and the fall prevention bracket 20 is attached to the mounting bracket 19 so that the horizontal portions 22 and 27 have a long length. The pair of downward legs 28 of the fall prevention bracket 20 are vertically adjustable while being attached so as to be adjustable in the front-rear direction and the expansion-contraction direction within the holes 24 and 30, respectively.

That is, the pair of downward leg portions 28 of the fall prevention bracket 20 are divided into an upper leg portion 48 integral with the horizontal portion 27 and a lower leg portion 49 having an engaging portion 29 at the lower end. The upper leg portion 48 has a vertically elongated hole 50, and the lower leg portion 49 has two screw holes 51 formed in the front and rear respectively. Then, the lower leg portion 49 is superposed on the inner side of the upper leg portion 48, and by the two screws 52 screwed into the screw hole 51 from the outer side of the upper leg portion 48 through the long hole 50, the upper leg portion 48. It is fixed so that it can be adjusted vertically.

Also in this embodiment, if the lower leg portion 49 is adjusted up and down with respect to the upper leg portion 48, the downward leg portion 28 itself expands and contracts in the vertical direction, so that the engaging portion 29 within the range of the elongated hole 50. The position of can be adjusted vertically. Therefore, it is possible to adjust the engaging portion 29 in the vertical direction, the front-rear direction, and the extending / contracting direction of the expandable and retractable gate main body 4 after the construction so as to match the engaged portion 37 of the receiving tool 21. In this case, in particular, the screw 52 is located below the mounting bracket 19 on the vertical rail 7 side, and the lower leg portion 49 can be moved up and down, so that there is an advantage that the adjustment is very easy.

FIG. 14 and FIG. 15 show a fifth embodiment of the present invention, which is applied to a double door type expansion and contraction gate installed on an inclined surface where the ground 3 is inclined in the left-right direction. That is, the suspension base columns 1 are erected on both left and right sides of the frontage, and the expansion gate door bodies 4 are attached to the suspension base columns 1, respectively. Further, the expandable door main bodies 4 have substantially the same structure, and when they are extended, the end frames 6 and 6 are brought into contact with each other at the center of the frontage.

As in the case of the first embodiment, each telescopic gate body 4 is provided with a fall prevention bracket 20 on the vertical bar 7 at the center through a mounting bracket 19, and correspondingly to the ground 3 side. A receiver 21 is provided.

Also in this case, if each expandable gate main body 4 is extended from both the left and right sides, each expandable expandable gate main body 4 can be moved along the slope of the ground 3 as shown in FIG. Since it extends, the engaging portion 29 of the fall prevention bracket 20 enters the lower side of the engaged portion 37 of the receiving tool 21 through the state of the chain double-dashed line and engages as shown by the solid line. Therefore, in this way, even when the ground 3 tilts to the left and right, it is possible to prevent the telescopic gate body 4 from swaying and falling.

Further, in the case of the expansion / contraction gate for installation on the inclined surface, although the distance between the lower end of the vertical rail 7 and the ground 3 is different between the suspension base and the door stop, the mounting bracket 19 is adjusted up and down. By doing so, the height of the engaging portion 29 of the fall prevention bracket 20 can be matched with the engaged portion 37 of the tool 21.

In the embodiment, the expandable gate main body 4 including the upper and lower two rows of pantograph mechanisms 8 is illustrated, but the invention is not limited to this, and the expandable expandable gate main body 4 is provided with the vertical rail 7. Moreover, as long as it has a structure capable of expanding and contracting, it can be similarly implemented.

As the vertical rail 7 to which the mounting bracket 19 and the fall prevention bracket 20 are attached, the vertical rail 7 at an arbitrary position is selected in consideration of the length of the telescopic gate body 4 in addition to the center of the telescopic gate body 4. Just go. Further, the structure and shape of the engaging portion 29 and the engaged portion 37 are such that they can be engaged and disengaged when the expansion and contraction gate main body 4 is expanded and contracted, and the expansion and contraction gate main body 4 can be prevented from falling over in the engaged state. good.

[0047]

[Effect of device]

 According to the present invention, the fall prevention bracket 20 having the engaging portion 29 at the lower end is provided at the lower portion of any vertical rail 7 of the expandable gate main body 4, and the engaging portion 29 is attached to the upper, lower, front and rear sides of the expandable gate main body 4. It is attached via a mounting bracket 19 so that it can be adjusted in the rear and extension directions, and the fall prevention bracket 20 is engaged on the extension path a of the extension gate body 4 on the ground 3 side when the extension gate body 4 is maximally extended. Since the receiving part 21 having the engaged part 37 that engages with the part 29 and the engaging part 29 of the fall prevention bracket 20 engages when the expandable gate main body 4 expands and contracts, the expandable expandable gate main body 4 is provided. By simply expanding and contracting 4, the engaging part 29 of the fall prevention bracket 20 can be engaged with and disengaged from the engaged part 37 of the receiving tool 21, and it is not necessary to operate each time opening and closing, and the operability is remarkably improved compared to the conventional case.

Further, the engaging portion 29 of the fall prevention bracket 20 can be adjusted with respect to the vertical rail 7 in the up / down direction, the front / rear direction, and the extending / contracting direction with respect to the expandable / retractable gate body 4, and after the construction, the engaging part 29 is received by the receiving member 21. Since the position of the engaging portion 29 can be appropriately adjusted so as to coincide with the engaged portion 37 of No. 3, the accuracy of the position of the receiving member 21 installed on the ground 3 is not required, and the construction is very easy. Is.

Moreover, in the case of the expandable gate for installation on the inclined surface, although the distance between the lower end of the vertical bar 7 and the ground 3 is different between the suspension base and the door stop side, the engaging portion 29 of the fall prevention bracket 20 moves up and down. Since it can be adjusted, it only needs to be adjusted after construction, so it can be used for inclined surfaces.

[Brief description of drawings]

FIG. 1 is a front view of a telescopic gate showing a first embodiment of the present invention.

FIG. 2 is a partially cutaway side view of a telescopic gate showing the first embodiment of the present invention.

FIG. 3 is a side sectional view of a fall prevention device according to a first embodiment of the present invention.

FIG. 4 is a plan sectional view of a fall prevention device according to a first embodiment of the present invention.

FIG. 5 is an exploded perspective view of a fall prevention bracket side according to the first embodiment of the present invention.

FIG. 6 is a plan view of the receiving side showing the first embodiment of the present invention.

FIG. 7 is a front view of the receiving side showing the first embodiment of the present invention.

FIG. 8 is a side view, partly cut away, on the receiving side showing the first embodiment of the present invention.

FIG. 9 is a side sectional view of a fall prevention device according to a second embodiment of the present invention.

FIG. 10 is a side sectional view of a fall prevention device according to a third embodiment of the present invention.

FIG. 11 is a plan sectional view of a fall prevention device according to a third embodiment of the present invention.

FIG. 12 is a partially cutaway side view of a fall prevention device according to a fourth embodiment of the present invention.

FIG. 13 is a partially cutaway front view of a fall prevention device according to a fourth embodiment of the present invention.

FIG. 14 is a front view of a telescopic gate for sloped ground showing a fifth embodiment of the present invention.

FIG. 15 is a sectional view of a fall prevention device according to a fifth embodiment of the present invention in an engaged state.

[Explanation of symbols]

 3 Ground 4 Telescopic gate body 7 Vertical bar 19 Mounting bracket 21 Receiver 20 Fall prevention bracket 29 Engagement part 37 Engagement part

Claims (1)

[Scope of utility model registration request] 1. An optional vertical rail (7) of an expandable gate body (4).
A fall prevention bracket (20) having an engaging portion (29) at the lower end is provided at the lower part of the engaging portion (29) so that the engaging portion (29) can be adjusted in the vertical and longitudinal directions of the telescopic gate body (4) and the telescopic direction. Mounted via the mounting bracket (19), the fall prevention bracket (20) is installed on the expansion / contraction path (a) of the expandable gate main body (4) on the ground (3) side when the expandable gate main body (4) is maximally extended. A receiver having an engaged portion (37) with which the engaging portion (29) is engaged and with which the engaging portion (29) of the fall prevention bracket (20) is engaged when the extendable gate main body (4) is extended and contracted. Device for preventing expansion / contraction gates from falling over, provided with a tool (21)