JP4797012B2 - Telescopic gate - Google Patents

Description

  The present invention relates to a telescopic gate whose door body expands and contracts by a pantograph mechanism, and more particularly to a hanger-type telescopic gate that does not require rails or casters.

  As this type of telescopic gate, for example, a plurality of slanting members inclined upward (upward to the left) and a slanting member inclined downward (downward to the left) intersect, and the intersection is a pin. In a telescopic gate that forms a door body that expands and contracts by a pantograph mechanism pivotally attached to a shaft and connects the suspension base end of the door body to a fixing member such as a suspension pillar. The distance between the intersections is set to be smaller than the distance between the intersections on the lower side of the door body, thereby suppressing the movement side end of the door body from hanging down when the door body is extended. (See Patent Document 1).

JP-A-9-177455

  However, the stretchable gate configured in this way has a maximum extension length (full width) of about 3 m at the maximum, and needs to be longer than that, for example, 4 m or more as in the entrance of two garage spaces. In the case of the above length, the moving side end of the door body hangs down, causing problems such as contact with the ground, and it is necessary to attach wheels or casters to the lower part of the door body.

  The present invention has been made to solve such a problem, and the object of the present invention is to provide a plurality of slanting members inclined upward on the suspension side and lowering on the suspension side as described above. Forms a door body that expands and contracts by a pantograph mechanism that intersects with an inclined oblique member and the intersection is pivotally attached to a pin shaft, and connects the suspension base side end of the door body to a fixing member such as a suspension pillar. In the telescopic gates, the hanger type expansion and contraction that can prevent the moving side end from drooping even for long door bodies longer than 3m by elaborating the connecting means of the hanging side end of the door body to the fixed member, and can accommodate a large frontage To provide a gate.

  The present invention will be described with reference to the reference numerals attached to FIGS. 1 to 7 to facilitate understanding of the contents of the invention, as described in claim 1. The pantograph mechanism 5 in which the slanting member 2 inclined upward (to the left in FIG. 5) intersects the slanting member 3 inclined to the lower side of the suspension (downward to the left in the figure) and the intersection is pivotally attached by the pin shaft 4 In a telescopic gate that forms a telescopic door main body 6 and connects a suspension base end of the door main body 6 to a fixing member such as a suspension pillar, the suspension base end of the slanting member 2A that rises from the suspension base is fixed. The upper guide member 26 fixed to the upper side of the member is connected to the upper guide member 26 through the upper moving pin 24 so as to be slidable up and down, and the suspension side end of the slanting member 3A that is lowered on the suspension side is fixed to the lower side of the fixing member. The lower guide member 27 is slidably connected to the lower guide member 27 via the lower moving pin 25. The slanting member 2B that is lifted from the slanting side is disposed between the slanting member side end of the slanting member 2A that is lifted from the slanting side and the slanting member side end of the slanting member 3A that is sloping down from the slanting side. The intersection of the suspension side end and the suspension side end of the slanting member 3B that is suspended from the suspension side is pivotally connected to the fixing member via a fixed pin shaft 4A, and is connected to the upper guide. As the door body 6 extends and the upper moving pin 24 descends the upper guide member 26, the member 26 is inclined so that the slanting member 2 </ b> A rising on the hanging side moves to the hanging side, and the lower guide member 27. Is characterized in that as the door body 6 extends and the lower moving pin 25 moves up the lower guide member 27, the slanting member 3A lowered from the suspension base side is inclined so as to move to the door stop side. Is.

  According to the telescopic gate having such a configuration, when the door main body 6 is extended and closed, the upper moving pin 24 of the sliding-type lifting base side inclined member 2A moves down in the groove of the upper guide member 26 and slides. The lower moving pin 25 of the hanging base-side slanting member 3A of the type rises in the groove of the lower guide member 27. Is rotated counterclockwise about the fixed pin shaft 4A (counterclockwise in the figure), and a force to lift the moving end side of the door body 6 acts. It is possible to prevent the moving side end from drooping and to cope with a large frontage.

  In the hinge according to claim 1, as described in claim 2, the bracket 28 is fixed to the suspension side end of the slanting member 3 </ b> A that is lowered on the suspension side so as to protrude toward the suspension side, and the protrusion of the bracket 28 is fixed. When the door main body 6 is contracted, the lower moving pin 24 connects the lower end of the hanging member-side inclined member 3A, the fixed pin shaft 4A, and the upper moving pin 24 of the hanging member-side rising member 2A. It is possible to employ a configuration in which the ellipse P is biased so as to be parallel to the longitudinal direction of the fixing member. According to this configuration, the lower guide member 27 and the door main body 27 can be provided when the door main body 6 is contracted because the lower guide member 27 can be provided in a housed state in which the fixing member does not protrude in the door contact direction. 6 can be avoided, and the door body 6 can be stored in a compact contracted state on the suspension side.

  The hinge according to claim 1 or 2 is the distance between the intersections of the oblique members 2 and 3 in the upper part of the door main body 6 between the intersections in the lower part of the door main body 6 as described in claim 3. It is possible to employ a configuration that is set smaller than the distance between them. According to this configuration, when the door body 6 is extended and closed, the moving side end of the door body 6 can be prevented from hanging down, and the moving side end of the door body 6 obtained by the configuration of the invention according to claim 1 can be prevented from hanging down. Combined with the action, it is possible to further increase the effect of preventing the moving body end of the door body 6 from sagging and to cope with a larger frontage.

  According to the present invention, it is possible to prevent drooping of the moving side end of the door main body extended in the hanger type telescopic gate door without increasing the strength of the constituent members of the door main body. Can be realized.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall front view of an extension gate of an embodiment of the present invention as viewed from the road side, FIG. 2 is a plan view of the extension gate, and FIGS. 3 (a), 3 (b), 3 (c), (D) is each sectional view in A part, B part, C part, and D part in FIG. 1, FIG. 4 is a front view of the suspension side end part of the door body when the telescopic gate is extended, and FIG. FIG. 6 is an enlarged cross-sectional view of the main part in FIG. 4, FIG. 7 is an enlarged cross-sectional view of the main part in FIG. 5, and FIG. 8 is the same extendable gate door. FIG. 9 is a front view showing, in a weightless state, a suspension base side end portion of the door body when the telescopic gate is extended.

  As shown in FIGS. 1 and 2, the telescopic gate 1 according to the present invention includes a plurality of slant members 2 inclined upward (upward to the left in the figure) and downward suspension side (left in the figure). The door body 6 that extends in the left-right direction is formed by a pantograph mechanism 5 that intersects with the slanting member 3 that is inclined downward), and the intersection is pivotally attached to the pin shaft 4.

The door main body 6 is disposed between a hanging pillar 9 and a door-to-door pillar 10 which are erected on the ground 8 in a mutually opposing manner with a space left and right. The full width of the telescopic gate 1 of this embodiment is 4270 mm, and the folding width is 745 mm.
A rotary pillar 11 having a groove-shaped cross section is provided at the suspension base side end of the door body 6, and this rotation pillar 11 is attached to the suspension pillar 9 via a hinge 12 so as to be rotatable by 180 ° in the horizontal direction as shown in FIG. It has been.
The rotating column 11 and the suspension column 9 are rendered unrotatable by inserting a lock pin 13 that is removably attached to the opposite side of the hinge 12, and is retracted as shown by an imaginary line M in FIG. The door body 6 can be rotated and stored 180 degrees on the rear side of the suspension column 9 via a hinge 12.
On the other hand, a movable pillar 14 is provided at the door end side end of the door body 6, and a lock 15 is provided on the movable pillar 14, and the movable pillar 14 can be locked and unlocked to the door stopper 10 by the lock 15. Yes. On both front and rear sides of the movable column 14, handles 16 for extending and retracting the door main body 6 are provided.

  A pantograph mechanism 5 is provided between the rotating column 11 and the moving column 14. The pantograph mechanism 5 of the illustrated example includes a plurality of slant members 2 inclined upward (upward to the left in the drawing) and slant members 3 inclined to the bottom of the suspension (downward to the left in the drawing), It consists of a vertical grid 7. Although the vertical grid 7 is provided in the present embodiment, it may be in a bamboo and arrow shape made only of the oblique members 2 and 3 from which the vertical grid 7 is omitted.

  The oblique member 2 inclined upward from the suspension base side and the oblique member 3 inclined downward from the suspension base side are pivotally mounted so as to be relatively rotatable by the pin shaft 4 at each intersection. The pin shaft 4 at the intersection may be omitted for the purpose of reducing the weight of the door body 6 and reducing the cost. In the case of the present embodiment, as shown in FIG. 1, the intersections between the slant members 2 and 3 on the suspending side are all pivotally attached by the pin shaft 4, but the intermediate between the suspending side and the door stop side. From the position to the door stop side, the pin shaft 4 is omitted at the fourth intersection C4 from the top. This is to increase the strength of the door base 6 on the suspending side and to reduce the weight on the door end side in order to prevent the door body 6 from drooping when the door body 6 extends.

In FIG. 1, the pin shafts 4 at the first, third, fifth, and seventh intersections C1, C3, C5, and C7 from the top at the intersections between the oblique members 2 and 3 are inclined members 3 and 2, respectively. Protrudes in the front-rear direction. The front and rear protruding ends of the pin shaft 4 at the first, fifth, and seventh intersections C1, C5, and C7 are formed inside the pair of front and rear vertical lattices 7 as shown in FIG. The pin shaft 4 moves up and down along the guide grooves 17 of the vertical lattice 7 when the door main body 6 expands and contracts. Specifically, a resin collar 18 is provided at each of the front and rear projecting ends of the pin shaft 4, and a lip 7 a protruding in the guide groove 17 slides on a constricted portion 18 a formed at an intermediate position of the collar 18. It engages freely. In FIG. 3C, a spacer 30 is interposed between the oblique members 3 and 2 on the pin shaft 4.
The front and rear protruding ends of the hollow pin shaft 4 at the third intersection C3 from the top are fastened with screws 19 in the vertical lattice 7 so as not to move up and down as shown in FIGS. 3 (a) and 3 (b). Therefore, there is no change in the vertical position when the door body 6 is expanded and contracted. As shown in FIG. 1, a drop bar device 20 is provided on the side of the second vertical lattice 7 from the door-end side end, and a hole 21 drilled in the ground 8 in the fully closed state of the door body 6. The lower end of the drop bar 22 is fitted into the door to prevent the door body 6 from extending and contracting.

  As shown in FIG. 4 and FIG. 6, the uppermost oblique member 2 (hereinafter referred to as a sliding-type hanging member side rising oblique member 2 </ b> A) out of the hanging member side rising member group 2 in the suspension side end region. And the bottom slant member 3 (hereinafter referred to as a slide-type slant base side slant 3A) of the three slant base side slant members at the bottom end of the suspension. It is connected to the rotating column 11. An upper moving pin 24 is provided at the hanging end of the sliding type lifting base side inclined material 2A, and a lower moving pin 25 is provided at the hanging end of the hanging side lower inclined material 3A. Roller rollers provided at both front and rear ends thereof are provided in grooves in a groove-shaped upper guide member 26 with a cross-sectional lip provided on the upper side inside the rotating column 11, and the lower moving pin 25 is provided at both front and rear ends thereof. A roller is fitted in a groove in a groove-shaped lower guide member 27 with a cross-sectional lip provided on the lower side of the rotating column 11 so as to be slidable in the vertical direction.

  At the same suspension side end, it is arranged between the slide-type suspension-side upward sloping member 2A and the sliding-type suspension-side downward slanting member 3A. The intersection between the suspension side end of the material 2B and the suspension side end of the suspension side falling slant 3B is pivotally connected to the rotating column 11 via the fixed pin shaft 4A. That is, the fixed pin shaft 4A has its front and rear ends penetrating through the intersection of the hanging base side end of the hanging base side rising oblique member 2B and the hanging base side end of the hanging base side falling oblique member 3B. The front and rear protruding ends are fixed to the rotating column 11 with screws or the like.

  On the other hand, it is arranged between the slide-type lifting base-side rising slant 2A and the sliding-type hanging base-side slanting member 3A, and the suspension-side end slanting member 2B has a suspension-side end and a suspension base. On the lower side of the intersection with the suspension base side end of the side-down inclined member 3B, the suspension base end of the suspension-side upward slope member 2C and the suspension base end of the suspension-side downward slope member 3C intersect each other. The pin shafts 4 at the intersections do not protrude in the front-rear direction, but remain in the internal space of the rotating column 11 and are in a free state not connected to the rotating column 11.

  As shown in FIGS. 4 and 6, the upper guide member 26 is a slidable lifting member that is slid upward as the door body 6 extends and the upper moving pin 24 descends in the groove of the upper guide member 26. 2A is inclined so as to move to the suspension base side, and the lower guide member 27 is lowered by a sliding suspension base side as the door body 6 extends and the lower movement pin 25 rises in the groove of the lower guide member 27. The slanting member 3A is inclined so as to move to the door stop side. At this time, the upper guide member 26 is inclined with its lower end side toward the suspension base side, while the lower guide member 27 is inclined with its upper end side toward the door stop side. For example, the upper guide member 26 has a lower end position inclined by 7.5 ° toward the suspension base side with respect to the upper end position, and the lower guide member 27 has a door end position with respect to the lower end position. It is inclined 7.5 ° toward the side. The lengths of the upper and lower guide members 26 and 27 are, for example, 137.5 mm for the upper guide member 26 and 235.0 mm for the lower guide member 27. The lengths of the upper and lower side guide members 26 and 27 become longer as the distance from the fixed pin shaft 4 increases.

Accordingly, when the door body 6 is extended, the upper moving pin 24 of the sliding-type lifting base-side tilting member 2A descends in the groove of the upper guide member 26, and the sliding-type lifting base-side tilting member 3A. The lower moving pin 25 rises in the groove of the lower guide member 27, so that the slidable lifting base side tilting member 2A and the suspending side lowering tilting member 3A are opposite to each other about the fixed pin shaft 4A. Rotate clockwise (counterclockwise in the figure). The rotation of the sliding-type lifting base-side tilting material 2A and the suspension-side lowering tilting material 3A leads to the rotation of the entire door body 6 in the counterclockwise direction, and raises the moving side end of the door body 6. A force to be applied acts (see FIGS. 8 and 9).
When the door body 6 is contracted, the upper moving pin 24 of the sliding-type lifting base-side inclined member 2A rises in the groove of the upper guide member 26, and the lower moving pin of the sliding-type hanging-side lowering member 3A. 25 descends in the groove of the lower guide member 27, the slanting member 2A rising on the hanging side and the slanting member 3A falling on the hanging side, and the whole door body 6 is centered on the fixed pin shaft 4A. And the door body 6 contracts by rotating clockwise (see FIGS. 5 and 7).

  As shown in FIGS. 6 and 7, a bracket 28 is fixed to the lower end portion of the sliding-type hanging base-side inclined slant 3 </ b> A with a screw 29 so as to protrude to the hanging base side. The lower movement pin 25 is provided so as to be biased toward the suspension side from the lower end portion of the slanting member 3A, and the lower movement pin 25 is fitted to the lower guide member 27 so as to be slidable in the vertical direction. . When the door body 6 is contracted as shown in FIGS. 5 and 7, the amount of deviation of the lower moving pin 25 is suspended from the lower end of the hanging base-side falling oblique member 3 </ b> A, and the suspension base end of the hanging base-side rising oblique member 2 </ b> C. The pin shaft 4 at the intersection with the suspension base end of the former side falling slant member 3C, the suspension side end of the slant member 2B rising on the suspension side, and the suspension side end of the slant member 3B falling on the suspension side A line P connecting the fixed pin shaft 4A and the upper moving pin 24 of the lifting base side rising slanting member 2A at the intersection is set so as to be parallel to the longitudinal direction of the suspension base column 9 and the rotary column 11. . On the other hand, if the lower moving pin 25 is provided so as to be positioned on the line P at the lower end of the slanting member 3 </ b> A directly below the suspension base side without passing through the bracket 28, the lower guide member 27 It is necessary to project the upper end side from the rotary column 11 in the door contact side direction. In this case, when the door body 6 is contracted, the upper end of the lower guide member 27 and the vertical lattice 7 at the suspension side end interfere (contact). A malfunction occurs. In this regard, as described above, when the bracket 28 is fixed to the lower end portion of the hanging member-side downward inclined member 3A and the lower moving pin 25 is provided on the protruding end side of the bracket 28, the lower side is adopted. The guide member 27 can be provided in a state of being completely accommodated in the rotating column 11 without protruding outside the rotating column 11. Therefore, as will be described later, when the door body 6 is contracted, the contact interference problem between the lower guide member 27 and the vertical lattice 7 at the suspension base end can be avoided, and the door body 6 is moved to the suspension base side. It can be stored in a compact contracted state.

  The oblique members 2 and 3 and the vertical lattice 7 constituting the door body 6 are formed of an aluminum mold. The oblique members 2 and 3 of the door body 6 are devised so as to increase the strength on the hanging side and to be light on the door-end side. Specifically, as shown in FIG. 1, the slide-type lifting base-side rising slanting material 2 </ b> A and the sliding-type hanging base-side sloping tilting material 3 </ b> A in the suspension-side end region (A) are shown in FIG. As shown in b) and (d), two oblique members are arranged in parallel. Further, reinforcing steel cores 23 (see FIGS. 3B and 3D) are built in the slanting members 2A and 3A to increase the strength. Iron cores 23 are also provided on the slant members 2B, 2C, 3B, 3C in the suspension side end region (A) and the four slant members 2D, 3D in the intermediate region (B) near the suspension side end, respectively. Built in. However, as shown in FIG. 1, seven slant members 2E and 3E in the middle region (c) near the door end side region and six slant members 2F in the door end region (d) 3F does not have a built-in iron core. Further, each of the slant members 2 and 3 is formed of a rectangular tube (see FIGS. 3A to 3D), and as shown in FIG. The meat of the slanting member 2E, 3E in the intermediate region (c) near the slanting member 3A, the slanting member 2D, 3D in the middle region (b) near the hanging base side end, and the middle region (c) near the door end side region The thickness is 1.5 mm on the long side and 2.0 mm on the short side. On the other hand, the thickness of the slant members 2F and 3F in the door end side region (d) is 1.0 mm for both the long side and the short side.

  Specifically, for example, as shown in FIG. 4, the distance between the crossing points between the oblique members 2 and 3 is 168.5 mm from the top (the distance between the first crossing point and the second crossing point). d1), 169.0 mm (distance d2 between the second intersection and the third intersection), 169.5 mm (distance d3 between the third intersection and the fourth intersection), 170.0 mm (4 Distance d4 between the 5th intersection and the 5th intersection, 170.5 mm (distance d5 between the 5th and 6th intersections), 171.0 mm (the 6th intersection and the 7th intersection) The distance between intersections is d6). Thus, by making the distance between the intersections on the upper side smaller than the distance between the intersections on the lower side, the door body 6 in the weightless state or the state where the door body 6 is laid on the ground (the door body When the door 6 is placed in a horizontal state and extended in a state in which no vertical load is applied to the door body 6, the door body 6 extends in a reverse fan shape (see FIGS. 8 and 9).

  Next, the opening / closing operation | movement of the expansion gate 1 of the said structure is demonstrated. First, when the door body 6 is extended from the opened state of FIGS. 5 and 7 and closed as shown in FIGS. 4 and 6, the door column 10 side is held by the handle 16 of the moving column 14 of the door body 6. Go to. Then, the upper moving pin 24 of the sliding type lifting base side inclined member 2A descends in the groove of the upper guide member 26, and the lower moving pin 25 of the sliding type lower side tilt member 3A is the lower guide. The inside of the groove of the member 27 is lifted, and the slidable lifting base side slanting member 2A and the slanting side descending slanting member 3A are counterclockwise about the fixed pin shaft 4A (counterclockwise in the figure). Rotating movement is added. Then, the rotation of the slide-type lifting base-side tilting material 2A and the suspension-side lowering tilting material 3A leads to the movement of rotating the entire door body 6 in the counterclockwise direction, as shown in FIGS. The force which raises the moving side end of the main body 6 acts, and the door main body 6 expand | extends in a reverse fan shape (refer FIG. 8, FIG. 9). However, due to the gravity of the door body 6, the clearance between the pin shaft insertion hole and the pin shaft 4 in the oblique members 2, 3, the bending of the oblique members 2, 3, dripping occurs at the moving side end of the door body 6. . The amount of descending due to the drooping of the door main body 6 and the door main body 6 due to the action of the slide-type lifting base-side rising slanting member 2A and the hanging base-side falling slanting member 3A to raise the moving side end of the door main body 6. The amount of increase due to the reverse fan-shaped deformation is offset, and the door body 6 moves substantially horizontally, so that the problem due to the dripping of the moving side end of the door body 6 can be solved.

Further, the distance between the intersections of the oblique members 2 and 3 on the upper side of the door body 6 is set smaller than the distance between the intersections on the lower side of the door body 6, and the door body 6 is extended to close the door. If the moving side end of the door body 6 can be prevented from drooping when the door body 6 is moved, the effect of preventing the dripping of the moving side end of the door body 6 is further reduced in combination with the action of preventing the moving side end of the door body 6 from hanging down. It can be increased and can accommodate a larger frontage.
In addition, after the door main body 6 is fully closed as shown in FIG. 1, the movable column 14 is locked to the door stop column 10 by the lock 15 provided on the movable column 14 of the door main body 6.

Next, when the door body 6 is opened by being contracted from the fully closed state of FIGS. 1 and 2, the handle 16 of the moving column 14 of the door body 6 is held and pulled to the suspension column 9 side. Then, as shown in FIG. 5 and FIG. 7, the upper moving pin 24 of the sliding-type suspension-side upward sloping member 2 </ b> A rises in the groove of the upper guide member 26, and the sliding-type suspension-side downward sloping material The lower moving pin 25 of 3A descends in the groove of the lower guide member 27, and the slanting member 2A rising on the suspension base side and the slanting member 3A descending on the suspension base side are clockwise around the fixed pin shaft 4A. Since the pantograph mechanism 5 rotates and contracts, and the interval between the vertical lattices 7 and 7 decreases uniformly, the door body 6 can be stored in the contracted state on the hanging side.
At this time, since the lower guide member 27 is provided in the rotating column 11, the lower guide member 27 and the vertical lattice 7 at the suspension side end are in contact with each other when the door body 6 is contracted. This interference can be avoided, and the door body 6 can be stored in a compact contracted state on the hanging base side. After the door body 6 is contracted and closed, the door body 6 contracted as shown by the phantom line M in FIG. It is rotated 180 ° via the hinge 12 and stored on the back side of the suspension column 9.

  In the above embodiment, the slant members 2A, 2B, 3A, 3B at the end of the suspension base are connected to the rotary column 11 as described above, but instead, the rotary column 11 is omitted and the suspension base column 9 is omitted. The upper guide member 26 is fixed to the upper side of the suspension base 9, and the lower guide member 27 is fixed to the lower side of the suspension base 9. 24, and the suspension base end of the slanting member 3A that is lowered on the suspension base side is coupled to the lower guide member 27 so as to be slidable up and down via the lower moving pin 25. it can. In this case, the intersection between the suspension base end of the slanting member 2B rising on the suspension base side and the suspension base end of the slanting member 3B falling on the suspension base side is connected to the suspension base column 9 via the fixed pin shaft 4A. And pivotally connected.

  Moreover, in the said Example, the pin shaft 4 in the cross | intersection location of the suspension base end of the suspension base side rising slanting material 2C and the suspension base end of the suspension base side downward slanting member 3C is not connected to the rotating column 11. However, a guide member (not shown) similar to the lower guide member 27 of the suspension-side end of the sliding-type suspension base-down inclined member 3A is provided, and when the door body 6 is extended, the fixed pin shaft 4A is centered. In addition, the guide member may be inclined so that the suspension side end of the oblique member 3C rotates counterclockwise.

  Further, in the above embodiment, the door body 6 is provided with the pantograph mechanism 5 in only one row, and according to this, only one fixed pin shaft 4A is provided, but the pantograph mechanism may be provided in two upper and lower rows, In this case, two upper and lower fixed pin shafts 4A are provided. That is, the number of fixed pin shafts 4 </ b> A changes according to the number of pantograph mechanisms 5.

It is the whole front view which looked at the extension state of the expansion gate of one example of the present invention from the road side. It is a top view of the expansion-contraction gate. (A), (b), (c), (d) is each sectional drawing in A section, B section, C section, and D section in FIG. It is a front view of the suspension side edge part of a door main body when the same expansion gate is extended. It is a front view of the suspension side edge part of the door main body in the state which contracted the expansion-contraction gate. It is a principal part expanded sectional view in FIG. It is a principal part expanded sectional view in FIG. It is the whole front view which shows the expansion | extension state of the expansion-contraction gate in a zero gravity state. It is a front view which shows the suspension base side edge part of a door main body when extending the said expansion-contraction gate door in a weightless state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Telescopic gate door 2,2A, 2B Hanging base side rising (upward to the left) slanting material 3,3A, 3B Hanging base side falling (downward to the left) slanting material 4 Pin shaft 4A Fixed pin shaft 5 Pantograph mechanism 6 Door body 9 Hanging Main column 11 Rotating column 24 Upper moving pin 25 Lower moving pin 26 Upper guide member 27 Lower guide member 28 Bracket

Claims (3)

A plurality of slanting members inclined upward from the suspension base and a slanting material inclined downward from the suspension base intersect, forming a door body that expands and contracts by a pantograph mechanism in which the intersection is pivotally attached by a pin shaft, In the telescopic gate that connects the suspension side end of this door body to a fixing member such as a suspension column,
A suspension side end of the slanting member rising on the suspension side is connected to an upper guide member fixed on the upper side of the fixing member so as to be slidable up and down via an upper moving pin. The suspension side end of the material is connected to the lower guide member fixed to the lower side of the fixing member via a lower movement pin so as to be slidable up and down.
The suspending side end of the slanted member connected to the upper guide member so that the suspending side end is slidable up and down, and the slanting end connected to the lower guide member so that the suspending side end is slidable up and down The intersection between the suspension base end of the slanting member rising upward from the suspension base and the suspension base end of the slanting member descending from the suspension base, which is arranged between the suspension base end of the base material, is fixed as described above. It is pivotally connected to the member via a fixed pin shaft,
The upper guide member is inclined so that the slanting member rising on the hanging side moves to the hanging side as the door body extends and the upper moving pin lowers the upper guide member, and the lower guide The member is inclined so that the slanting member that is lowered on the suspension side moves to the door stop side as the door body extends and the lower moving pin raises the lower guide member. , Telescopic gate.   A bracket is fixed to the suspension base end of the slanting member that is lowered on the suspension base side so as to protrude to the suspension base side, and the lower moving pin is retracted to the projection end side of the bracket when the door body is contracted. A line connecting the lower end portion of the side-down inclined member, the fixed pin shaft, and the upper moving pin of the lifting member-side inclined member is biased so as to be parallel to the longitudinal direction of the fixing member. The telescopic gate according to claim 1.   The telescopic gate according to claim 1 or 2, wherein the distance between the intersections of the oblique members on the upper side of the door body is set smaller than the distance between the intersections on the lower side of the door body.

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