JP6300667B2 - Telescopic gate - Google Patents

Description

  The present invention relates to a telescopic gate that can be used on sloping ground or the like.

  In a telescopic gate with a plurality of vertical frames arranged at approximately equal intervals in the left-right direction and two sets of upper and lower pantograph mechanisms that are configured to extend in the left-right direction by combining diagonal members in a crossing manner The door body is divided into a plurality of door bodies in the left-right direction, and the door body is interlocked with the one that allows the relative angle of the pantograph mechanism to the vertical frame to be adjusted according to the inclination angle of the slope (Patent Document 1). Alternatively, there is one that expands and contracts without interlocking (Patent Document 2).

Japanese Examined Patent Publication No. 61-53509 JP 2009-41291 A

  In the former former extendable gate, the angle of the pantograph mechanism can be arbitrarily adjusted according to the inclination angle of the installation location during construction on sloping ground by adjusting the angle regulating member around the adjustment axis. There is an advantage that it is possible to expand and contract only the door body at a necessary portion when opening and closing the door.

  However, the conventional former telescopic gate has an angle restricting member inside the front and rear longitudinal bars of the intermediate vertical frame on both the front and rear sides of the pantograph mechanism, and the movable pivot of the pantograph mechanism is guided by each angle restricting member. In combination with the latter telescopic gate, a part of the door body cannot be opened and closed.

  In view of such conventional problems, the present invention can be installed according to the inclination angle of the inclined ground, and can open and close a part of the door body as necessary, and the structure can be simplified and can be manufactured easily and inexpensively. The purpose is to provide a gate.

  In the present invention, an intermediate vertical frame among a plurality of vertical frames connected to a pantograph mechanism that can be expanded and contracted in the left-right direction is a divided vertical frame, and the divided vertical frame is connected to the vertical frame of the pantograph mechanism. An angle restricting member that restricts the relative angle is pivotally mounted around an adjustment shaft, and the end sides of the pantograph mechanisms on both the left and right sides are separately extendably connected to the section vertical frame via the angle restricting member. A telescopic gate, wherein a fixed pivot of each pantograph mechanism and a guide for guiding the movable pivot of each pantograph mechanism to be movable in the vertical direction are substantially symmetrical with respect to the adjustment axis. It is provided.

  Moreover, you may arrange | position the said fixed pivot and the said guide part on a substantially straight line. The pantograph mechanism may include the movable pivot on at least one of the upper and lower sides of the fixed pivot.

  Further, the pantograph mechanism includes the movable pivot on one side of the fixed pivot, and the guide member for guiding the movable pivot on one side is provided on the angle regulating member, and the one on the one side with respect to the fixed pivot is provided. The end of the pantograph mechanism on the side opposite to the movable pivot may be separated from the section vertical frame.

  A reinforcing member may be disposed substantially parallel to the oblique member having the movable pivot between the movable pivot on the section vertical frame and at least the movable pivot on the vertical frame adjacent to the section vertical frame. Good. An angle adjusting means for adjusting the angle of the angle regulating member around the adjusting shaft may be provided on the opposite side of the angle regulating member from the adjusting shaft.

  There may be provided connecting means for connecting the movable pivots of the left and right pantograph mechanisms guided by the guide portion so as to be integrally movable in the vertical direction. The angle restricting member may be provided with restricting means for restricting the movement of the movable pivot by the maximum extension of the pantograph mechanism.

  The vertical frame is connected to the fixed pivot extending over two sets of the upper and lower pantograph mechanisms, the upper pantograph mechanism includes the movable pivot at least above the fixed pivot, and the lower pantograph mechanism is The movable pivot may be provided on both upper and lower sides of the fixed pivot, and the angle restricting member may be provided above the fixed pivot of each pantograph mechanism.

  According to the present invention, there is an advantage that it can be installed according to the inclination angle of the inclined ground, and a part of the door body can be opened and closed as necessary, and the structure can be simplified and manufactured easily and inexpensively.

The 1st Embodiment of the expansion-contraction gate of this invention is shown, (A) is a top view, (B) is a front view. It is side surface sectional drawing of the expansion-contraction gate. It is a partially broken front view containing the angle control member etc. by the side of the same division vertical frame. It is a partially broken side view including the angle regulating member on the side of the same vertical frame. It is plane sectional drawing containing the adjustment axis | shaft etc. by the side of the same division vertical frame. It is a plane sectional view containing the angle adjustment means, the connection means, etc. of the section vertical frame side. It is a plane sectional view containing the angle regulation member by the same division vertical frame side, a movable pivot, etc. It is a disassembled perspective view containing the pantograph mechanism of the same division vertical frame side, an angle control member, etc. (A) is an exploded perspective view of a connection means, (B) is an exploded view of a connection state. It is a partially broken front view including an angle regulating member and the like on the vertical frame side. It is a partially broken side view including the angle regulating member on the vertical frame side. It is plane sectional drawing containing the adjustment axis | shaft etc. of the same vertical frame side. It is plane sectional drawing containing the angle adjustment means etc. by the side of the same vertical frame. It is a plane sectional view containing the angle regulation member by the same vertical frame side, a movable pivot, etc. It is a disassembled perspective view of an angle regulating member, a movable pivot, etc. on the same end frame side. It is a front view which shows 2nd Embodiment of the expansion-contraction gate of this invention. It is front sectional drawing of the same division vertical frame, a pantograph mechanism, etc. It is a disassembled perspective view containing the angle control member by the same division vertical frame side, a movable pivot, etc. It is a plane sectional view containing the angle regulation member by the same division vertical frame side, a movable pivot, etc. It is a disassembled perspective view containing the angle control member by the side of the same vertical frame, a movable pivot, etc. It is a front view which shows 3rd Embodiment of the expansion-contraction gate of this invention. It is a partially broken front view containing the angle control member etc. by the side of the same division vertical frame. It is side surface sectional drawing containing the angle control member etc. by the side of the same division vertical frame. It is a plane sectional view containing the angle adjustment means, the connection means, etc. of the section vertical frame side. It is a plane sectional view containing the angle adjustment means on the same section vertical frame side, a movable pivot, etc. It is plane sectional drawing containing the adjustment axis | shaft etc. by the side of the same division vertical frame. It is a plane sectional view containing the lower connection means etc. of the section vertical frame side. It is a disassembled perspective view containing the angle control member by the same division vertical frame side, a movable pivot, etc. It is a partially broken front view including a pantograph mechanism, an angle regulating member, and the like on the vertical frame side. It is a plane sectional view including an angle regulating member, angle adjusting means, etc. on the vertical frame side. It is a plane sectional view containing the angle regulation member by the same vertical frame side, a movable pivot, etc. It is a plane sectional view including the angle regulating member on the same vertical frame side, an adjustment shaft, and the like. It is a plane sectional view of the oblique member lower part on the same vertical frame side. It is a front view which shows 4th Embodiment of the expansion-contraction gate of this invention. It is a partially broken front view including a pantograph mechanism, an angle regulating member, and the like on the same vertical frame side. It is plane sectional drawing containing the adjustment axis | shaft etc. by the side of the same division vertical frame. It is a plane sectional view of the oblique member lower part on the same vertical frame side.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 15 illustrate a first embodiment of a telescopic gate according to the present invention. This telescopic gate can be installed on the slope 1 and, as shown in FIGS. 1 and 2, a suspension column 2 and a door-to-door column 3 arranged substantially vertically on the left and right sides of the entrance / exit of the slope 1 The door body 4 is disposed between the support columns 2 and 3 so as to be extendable in the left-right direction.

  The door body 4 includes a suspension end frame 5 connected to the suspension support column 2 via a hinge and the like, and a door end frame 6 that can come into contact with the door support column 3. There are provided a handle 7 and locking means 8 that can be locked in a state in which the door end frame 6 is in contact with the door support column 3. The door body 4 may be a single-opening type that opens and closes from either one of the left and right directions, or a double-opening type that opens and closes from the middle to the left and right sides.

  The door body 4 includes a plurality of vertical frames 9 arranged in a substantially vertical direction at substantially equal intervals in the left-right direction (inclination direction), and two upper and lower pantograph mechanisms 10 to which the vertical frames 9 are connected. Have. Each pantograph mechanism 10 is configured to be extendable by connecting oblique members 12 and 13 that are inclined upward to the right and upward to the left in order in the inclined direction.

  Of the vertical frame 9 of the door body 4, vertical frames 9 </ b> A at both left and right ends are connected to the end frames 5 and 6. Further, the door main body 4 is divided into a plurality of, for example, three door bodies 4A in the inclination direction by any one of the middle vertical frames 9 as the divided vertical frames 9B, and each divided vertical frame 9B. The door body 4A (pantograph mechanism 10) on both the left and right sides of the door 4A can be changed to an interlocking type in which the door body 4A expands and contracts and a non-interlocking type in which each door body 4A expands and contracts separately.

  The vertical frame 9A and the divided vertical frame 9B at both ends are formed of a pair of front and rear vertical bars 17 arranged before and after the pantograph mechanism 10 as shown on the side of the divided vertical frame 9B in FIG. A pair of connecting members 17a for connecting the upper and lower ends of the rear vertical beam 17 in the front-rear direction are provided. The vertical frames 9 excluding the vertical frames 9A and the divided vertical frames 9B at both ends are constituted by vertical bars 9a arranged on the front side of the pantograph mechanism 10 as shown in FIG. Note that the vertical frames 9A and the divided vertical frames 9B at both ends have wider left and right widths than the other vertical frames 9, but may have substantially the same left and right widths as the other vertical frames 9. The vertical frames 9 excluding the vertical frames 9A and the divided vertical frames 9B at both ends may be configured in the same manner as the front and rear vertical bars 17.

  As shown in FIG. 3 and FIG. 10, each of the oblique members 12 and 13 has two upper and lower intersections between adjacent vertical frames 9 connected by a pivot 14, and upper and lower 3 corresponding to each vertical frame 9 side. Among the crossing portions, one crossing portion in the middle is connected by the fixed pivot 15 and the crossing portions on both the upper and lower sides are connected by the movable pivot 16. On the side of the vertical frame 9 excluding the vertical frame 9A at both ends and the section vertical frame 9B, each fixed pivot 15 is supported between the front and rear vertical bars 17, and each movable pivot 16 is freely movable with respect to the vertical frame 9. is there.

  The door end frame 6 (or the vertical frame 9A) and the divided vertical frame 9B have a caster wheel 18 running on the ground and a drop bar for releasably engaging and locking with a drop hole 19 on the ground side. 20 is provided.

  As shown in FIGS. 3 and 10, angle regulating members 22A and 22B for regulating the relative angle between each vertical frame 9 and the pantograph mechanism 10 are provided on the vertical frame 9A and the divided vertical frame 9B at both ends. The end portions of the pantograph mechanism 10 of each door 4A are connected to the regulating members 22A and 22B.

  The angle regulating members 22A and 22B are arranged at both ends of the vertical frame 9 via the adjustment shaft 24 in the front-rear direction, as shown in FIGS. 3 to 8 on the side of the section vertical frame 9B and in FIGS. 10 to 15 on the side of the vertical frame 9A. 9A is pivotally supported between the front and rear vertical bars 17 of the section vertical frame 9B, and the angle adjustment means 25 on the opposite side to the adjustment shaft 24 can adjust the angle around the adjustment shaft 24 according to the inclination angle of the slope 1 It is. The adjustment shaft 24 is inserted into the inner side wall 17b of the front / rear vertical beam 17 and is fixed to the front / rear vertical beam 17 by a fixture such as a rivet.

  As shown in FIG. 3 to FIG. 8 and FIG. 10 to FIG. 15, a restricting means 26 for restricting the maximum extension of the pantograph mechanism 10 is provided between the angle restricting members 22 </ b> A and 22 </ b> B and the pantograph mechanism 10. Between the ends of the pantograph mechanisms 10 on both the left and right sides of the vertical frame 9B, connecting means 27 for connecting the both pantograph mechanisms 10 so as to extend and contract is provided.

  The angle restricting members 22A and 22B are strips extending in the left and right direction and extending in the vertical direction. The vertical frame 9A at both ends sandwiching the pantograph mechanism 10 and the front and rear vertical bars 17 of the section vertical frame 9B and the pantograph mechanism 10 Arranged between.

  There are two types of angle restricting members 22A and 22B, one for the vertical frame 9A at both ends and the other for the divided vertical frame 9B. The angle regulating member 22B for the side of the section vertical frame 9B has a length extending from the intermediate adjustment shaft 24 to the movable pivots 16 on both the upper and lower sides, and is disposed opposite to the front and rear sides with the pantograph mechanism 10 in between. Has been. On the other hand, the angle restricting members 22A for the vertical frame 9A at both ends have a length extending from the adjustment shaft 24 to the upper and lower movable pivots 16, and are movable up and down from the adjustment shaft 24 on both the front and rear sides of the pantograph mechanism 10. It arrange | positions upside down corresponding to each slanting member 12 and 13 to the pivot axis | shaft 16. As shown in FIG.

  As shown in FIGS. 3 to 8, the angle regulating member 22B on the side of the section vertical frame 9B is pivotally attached to the section vertical frame 9B by the adjustment shaft 24 at the approximate center in the vertical direction. The fixed pivot 15 of each pantograph mechanism 10 is inserted in the front-rear direction in the vicinity of the adjustment shaft 24 in the left-right direction, and the movable pivots 16 of the left and right pantograph mechanisms 10 can be moved vertically in the upper and lower ends of each fixed pivot 15. A long hole-shaped guide portion 30 for guiding is formed substantially in parallel. The movable pivot 16 has sliding bush bodies 16 a at both ends, and the sliding bush bodies 16 a are guided by the guide portion 30.

  The angle restricting member 22B has a substantially symmetrical shape in the left and right and up and down directions, the fixed pivot 15 and the guide portion 30 are arranged substantially symmetrically in the left and right and up and down directions with respect to the adjustment shaft 24, and the fixed pivot 15 and the guide portion 30 are substantially the same. It is arranged on a straight line. In addition, the recessed part 31 for avoiding interference with the adjacent axis 14 at the time of shrinkage | contraction of the pantograph mechanism 10 is formed in the right-and-left both sides of the angle control member 22B.

  As shown in FIGS. 10 to 15, the angle restricting members 22 </ b> A on both sides of the vertical frame 9 </ b> A are arranged in the upside down direction corresponding to the upside down tilting members 12, 13 of the pantograph mechanism 10. Each angle regulating member 22A includes an adjusting shaft 24 corresponding to them, as well as the adjusting shaft 24, the fixed pivot 15, the movable pivot 16, the guide portion 30, and the recess 31 of the angle regulating member 22B on the side of the section vertical frame 9B. A fixed pivot 15, a movable pivot 16, a guide part 30, and a recess 31 are provided.

  Since the angle restricting member 22A is upside down on the side corresponding to the oblique members 12 and 13 on both sides of the vertical frame 9A, the movable pivot 16 guided by the guide portion 30 of the angle restricting member 22A is inclined. It is a short thing straddling the base materials 12 and 13 and the angle regulating member 22A.

  As shown in FIGS. 3 to 8 and FIGS. 10 to 15, the angle adjusting means 25 is provided at the end of the angle restricting members 22 </ b> A and 22 </ b> B on the opposite side to the adjusting shaft 24. A fixing plate 34 formed with a circular arc-shaped adjustment hole 33 and fixed to the inside of the front and rear longitudinal bars 17 and the adjustment hole 33 and the through holes 35 of the angle regulating members 22A and 22B. 36, and the angle regulating members 22 </ b> A and 22 </ b> B can be adjusted to an arbitrary angle and fixed within the range of the adjustment hole 33.

  The fixture 36 includes a screw 36a inserted through the angle restricting members 22A and 22B from the fixing plate 34 side, and a cap nut 36b screwed into the screw 36a from the inside of the angle restricting members 22A and 22B, and the angle restricting member 22A. , 22B can be adjusted from the inside of the vertical frame 9 by operating the cap nut 36b. The fixing plate 34 has a fixing member 38 such as a screw fixed to a back plate 39 fixed to the inner side wall 17 b of the front / rear vertical beam 17 with a fixing tool 40 such as a rivet.

  As shown in FIGS. 3, 4, 7, etc., the restricting means 26 is disposed outside the angle restricting members 22 </ b> A and 22 </ b> B, and is a disc-like shape provided at the end of the movable pivot 16 of the oblique members 12 and 13. And a regulating body 43 that is fixed to the angle regulating members 22A and 22B and that the abutting body 42 abuts when the pantograph mechanism 10 is in the maximum extended state. The abutting body 42 is fixed to the movable pivot 16 by a fixing tool 44 such as a rivet or a screw outside the angle regulating members 22A and 22B. The restricting body 43 is plate-shaped, has an adjustment hole 43a in the vertical direction, and is fixed so as to be vertically adjustable by a fixing tool 45 such as a screw that is screwed into the angle regulating members 22A and 22B.

  Note that, on the side of the vertical frame 9A at both the left and right ends of the door body 4, the movable pivot 16 has a length for connecting one angle regulating member 22A and the corresponding one of the oblique members 12 and 13, one of which The restricting means 26 is provided corresponding to the angle restricting member 22A. On the other hand, on the side of the section vertical frame 9B, there are angle restricting members 22B on both the front and rear sides, and therefore, restricting means 26 are provided outside the angle restricting member 22B.

  The connecting means 27 is for connecting the movable pivots 16 at both ends of the left and right pantograph mechanisms 10 of the section vertical frame 9B so as to be integrally movable in the vertical direction. 13 is detachably provided. Therefore, when the movable pivots 16 of the left and right pantograph mechanisms 10 of the section vertical frame 9B are connected to each other by the connecting means 27, the left and right pantograph mechanisms 10 are interlocked to expand and contract together to form both sides of the section vertical frame 9B. When the connection of the movable pivot 16 of each of the pantograph mechanisms 10 is released, both the pantograph mechanisms 10 expand and contract separately.

  As shown in FIGS. 7, 8, 9A and 9B, the connecting means 27 includes four connecting plates 47 each having a recess 47a formed in a notch shape and two coupling holes 47b. And a fastener 48 such as a screw which is detachably coupled by being inserted into the coupling holes 47b of the four coupling plates 47, and each movable pivot 16 is assembled by combining the two coupling plates 47 in the upside down direction. After being held in the recess 47a, the four connecting plates 47 are coupled by the fastener 48 inserted through the coupling hole 47b. The fastener 48 includes a screw and a cap nut.

  When installing this telescopic gate at the entrance / exit of the slope 1 and the like, first, the suspension post 2 and the door support post 3 are provided substantially vertically on both sides of the entrance / exit of the slope 1 and the like. Next, the suspension end frame 5 of the door body 4 is connected to the suspension support column 2 via a hinge or the like. Then, the handle 7 of the door end frame 6 is grasped and moved to the door stop column 3 in a state where the angle regulating members 22A and 22B are fixed by the angle adjusting means 25. At this time, the caster wheel 18 travels on the slope 1 and the door body 4 extends along the slope 1. And after the door main body 4 expand | extends, the door stop end frame 6 is connected to the door stop support | pillar 3 via the locking means 8. FIG.

  At this time, the pantograph mechanism 10 of the door body 4 is hung down or the vertical frame 9 in the middle part is tilted forward or backward. However, since the interval between the vertical frames 9 is wider than that in the contracted state, the angle of the angle regulating member 22B is adjusted according to the inclination angle of the inclined ground 1 while the respective divided vertical frames 9B are standing upright. After the adjustment by means 25, the angle of the angle regulating member 22A is similarly adjusted with respect to the vertical frames 9A at both ends.

  When adjusting the angle restricting member 22B, for example, if the section vertical frame 9B is erected in a substantially vertical state, an external force around the adjusting shaft 24 is applied to the angle restricting member 22B via the movable pivot 16 or the like inserted through the guide portion 30. The angle regulating member 22 </ b> B rotates around the adjustment shaft 24 within the range of the adjustment hole 33 of the angle adjustment means 25, and the door body 4 has an inclination angle in a state of extending along the inclined ground 1.

  After that, if a tool is inserted between the front and rear vertical bars 17 and the cap nut 36b of the fixture 36 is tightened from the inside of the angle regulating member 22B, the upper and lower sides of the angle regulating member 22B are divided vertically by the angle adjusting means 25. 9B can be fixed.

  In addition, if necessary, the door main body 4 may be fixed to the ground by dropping the drop bar 20 of the section vertical frame 9B into the drop hole 19 of the inclined ground 1 or the like. The restricting means 26 may be fixed in advance in accordance with the extension length of the pantograph mechanism 10.

  Since the telescopic gate can be installed by such a construction method, it can be easily constructed according to the inclination angle of the construction site even when installing on the slope 1 and the angle adjusting means 25 is operated from the inside. Since the angle regulating members 22A and 22B can be fixed at a predetermined inclination angle, there is an advantage that work such as fixing can be facilitated.

  If the angle restricting members 22A and 22B are adjusted around the adjusting shaft 24 in accordance with the inclination angle of the inclined ground 1, the upper and lower pantograph mechanisms 10 are inclined substantially parallel to the inclined ground 1, and each pantograph is opened and closed when the door body 4 is opened and closed. Since the mechanism 10 expands and contracts while being inclined along the slope 1, the caster wheel 18 can be opened and closed while traveling along the slope 1.

  Also, if each angle regulating member 22A, 22B is fixed substantially parallel to the vertical frame 9A and the section vertical frame 9B at both ends, each pantograph mechanism 10 is substantially perpendicular to each vertical frame 9, so It can also be used for a substantially horizontal flat land.

  Therefore, this telescopic gate can be installed on a flat horizontal ground in addition to the slope 1 by appropriately adjusting the angles of the angle regulating members 22A and 22B. There is an advantage of superiority.

  When the door body 4 is expanded and contracted, the slant members 12 and 13 of the upper and lower pantograph mechanisms 10 rotate around the fixed pivot 15 near the left and right of the adjustment shaft 24, whereas the fixed pivot 15 is movable on both the upper and lower sides. Since the tilting members 12 and 13 on the movable pivot 16 side rotate around the movable pivot 16 while the pivot 16 moves up and down along the upper and lower guide portions 30 of the angle regulating members 22A and 22B, the upper and lower movable pivots 16 are rotated. Will slide in the reverse direction along the guide portion 30 on the line segment passing through the fixed pivot 15, and each pantograph mechanism 10 can be regulated to a predetermined angle according to the angles of the angle regulating members 22A, 22B. .

  For example, in the angle regulating member 22B on the side of the section vertical frame 9B, the fixed pivot 15 and the guide pivot 30 are disposed substantially symmetrically with respect to the adjustment shaft 24, whereby the fixed pivot 15 and the movable pivot 16 of each pantograph mechanism 10 are arranged. Since the angle restricting member 22B can be connected to both the left and right sides, the angle restricting member 22B can be made flat, such as a flat plate, and can be manufactured easily and inexpensively.

  In addition, since the pantograph mechanisms 10 can be connected to the left and right sides of the angle restricting member 22B, it is possible to reduce the front-rear width of the door body 4 including the divided vertical frame 9B side, and the left and right pantograph mechanisms 10 are viewed in plan view. Can be arranged in a straight line in the left-right direction at substantially the same position in front and rear.

  In addition, each pantograph mechanism 10 has a structure in which a fixed pivot 15 is disposed at a substantially central position in the vertical direction, and a movable pivot 16 is disposed on both upper and lower sides thereof. An angle regulating member 22B is provided around the adjustment shaft 24 between the left and right fixed pivots 15. Since the angle can be adjusted, as compared with a structure in which the fixed pivot 15 is arranged at the upper or lower intersection of the pantograph mechanism 10, from the vertical section 9B on the upper and lower ends of the angle regulating member 22B in the left-right direction. There is an advantage that the amount of protrusion of the vertical frame 9A and the sectioned vertical frame 9B side at both ends in front view can be improved.

  Furthermore, on the side of the middle section vertical frame 9B, there are angle restricting members 22B on both the front and rear sides of the pantograph mechanism 10, and the guide portions 30 of each angle restricting member 22B guide both end sides of each movable pivot 16. Therefore, when the door main body 4 is expanded and contracted, the tilt of the movable pivot 16 on the middle section vertical frame 9B side can be prevented, and the door main body 4 can be expanded and contracted smoothly.

  On the other hand, on the side of the vertical frame 9 </ b> A at both ends of the door body 4, an angle regulating member 22 </ b> A that is about half of the divided vertical frame 9 </ b> B side is provided upward or downward on one side of the front and rear corresponding to the oblique members 12 and 13. Therefore, a member with a narrow left and right width can be adopted, and the number of parts can be reduced by arranging the angle regulating member 22A in the upside down and left and right directions.

  In addition, the angle regulating members 22A and 22B can be angle-adjusted by the angle adjusting means 25 around the adjusting shaft 24, and the angle regulating member 22B on the side of the section vertical frame 9B is substantially symmetrical vertically and horizontally with respect to the adjusting shaft 24. Since the fixed pivot 15 and the guide 30 are provided, each pantograph mechanism 10 can be individually expanded and contracted by releasing the connection by the connecting means 27 between the movable pivots 16 of the pantograph mechanisms 10 on both sides of the section vertical frame 9B. Each door can be extended and contracted separately.

  Accordingly, in the state where the door body 4A on the suspension source side is extended or contracted, the section vertical frame 9B is dropped and locked by being dropped into the ground-side drop hole 19 by the rod 20, and the door vertical side from the section vertical frame 9B is locked. It is also possible to extend and contract only the door body 4A.

  Further, if the movable pivots 16 of the pantograph mechanisms 10 on both sides of the divided vertical frame 9B are connected by the connecting means 27, the movable pivots 16 of the left and right pantograph mechanisms 10 are integrated along the guide portions 30 of the angle regulating member 22B. Therefore, the pantograph mechanisms 10 on both sides of the section vertical frame 9B can be expanded and contracted integrally, and the door bodies 4A can be expanded and contracted integrally.

  Further, when the door body 4 is extended, there are restricting means 26 on the side of each angle restricting member 22A, 22B corresponding to the vertical frame 9A at the left and right ends and the middle section vertical frame 9B, and the pantograph mechanism at both ends for each door body 4A. Since the extension is restricted by the restricting means 26 on both ends of the door 10, damage due to excessive extension of each door body 4A can be prevented.

  In this embodiment, the angle restricting members 22A provided on the vertical frame 9A side at both ends are disposed on one side in the front-rear direction in both cases above and below the adjustment shaft 24, and the movable pivot 16 is cantilevered. However, the movable pivot 16 may be supported in a cantilever manner by arranging the pantograph mechanism 10 on both front and rear sides.

  16 to 20 illustrate a second embodiment of the present invention. In this embodiment, as shown in FIG. 16, the vertical width of the upper (one) pantograph mechanism 10 out of the two upper and lower pantograph mechanisms 10 is about half that of the lower (other) pantograph mechanism 10. In the case where the height of the door body 4 is low, it can be configured in this way.

  The lower pantograph mechanism 10 is substantially the same as the first embodiment except for the connecting means 27. Further, a restricting means 26 is provided between the movable pivot 16 and the angle restricting member 22B.

  As shown in FIGS. 16 and 17, the upper pantograph mechanism 10 is configured such that, of the intersecting portions of the upper and lower oblique members 12 and 13 corresponding to each vertical frame 9, the upper intersecting portion is Are respectively pivotally attached to the movable pivot 16. Then, on the side of the vertical frame 9 excluding the vertical frame 9A and the section vertical frame 9B at both ends, as shown in FIGS. 17 and 19, a fixed pivot 15 is connected between the vertical bars 9a, and the lower movable pivot 16 is connected to each other. It is free to move with respect to the vertical frame 9.

  As shown in FIGS. 17 to 20, angle regulating members 22 </ b> A and 22 </ b> B are provided on the vertical frame 9 </ b> A and the section vertical frame 9 </ b> B at both ends so that the angle can be adjusted by the adjusting shaft 24 and the angle adjusting unit 25. A fixed pivot 15 and a movable pivot 16 are connected to 22A and 22B, respectively.

  In addition to the guide portion 30 and the like, the angle regulating member 22A on the side of the vertical frame 9A on both ends and the pair of front and rear angle regulating members 22B on the side of the section vertical frame 9B include the fixed pivot 15 on both sides of the insertion portion 24a of the adjustment shaft 24. The common member 22 provided with the insertion parts 15a and 15b etc. is used. On the side of the vertical frame 9A at both ends, an angle regulating member 22A is constituted by one member 22 as shown in FIG. 20, and on the side of the sectioned vertical frame 9B, there are two front and rear as shown in FIGS. The angle restricting member 22B is configured by arranging the members 22 in opposite directions.

  That is, on the side of the section vertical frame 9B, as shown in FIG. 18, the upper sides of the two angle regulating members 22B arranged in the left and right opposite directions on the front and rear sides of the pantograph mechanism 10 are the front and rear vertical bars of the section vertical frame 9B. The fixed pivot 15 of the left and right pantograph mechanisms 10 is inserted on the left and right sides of the adjustment shaft 24.

  On both ends of the vertical frame 9 </ b> A side, the pantograph mechanism 10 is disposed corresponding to one of the oblique members 12 and 13, and the upper side thereof is pivotally supported between the front and rear vertical bars 17 by the adjustment shaft 24. The fixed pivot 15 is inserted in the vicinity of.

  The angle restricting members 22A and 22B have a guide portion 30 and a concave portion 31, and the movable pivot 16 of the oblique members 12 and 13 corresponding to the angle restricting members 22A and 22B can move up and down in the guide portion 30. It is inserted.

  As shown in FIGS. 18 and 19, the connecting means 27 includes two connecting plates 47 for connecting the movable pivot 16 by combining them vertically and horizontally, and bolts for detachably connecting the connecting plates 47. And a fastener 48 such as a nut. The two front and rear connecting plates 47 are formed in a front and rear stepped manner via a bent portion 47c that is displaced to one side in the left-right direction, and a notch-shaped recess 47a formed on both sides in the left-right direction, And a fastener 48 for fastening the connecting plate 47 between the bent portions 47c.

  Then, the two connecting plates 47 are combined upside down, left and right, and the movable pivots 16 are held from both the upper and lower sides by the concave portions 47a on both sides, and then the two fasteners 48 are inserted into the connecting plate 47. It is inserted in the hole 47d and coupled in the front-rear direction. Other configurations are substantially the same as those in the first embodiment.

  Thus, when the height of the telescopic gate is low, the vertical width of the upper pantograph mechanism 10 can be about half that of the lower pantograph mechanism 10. In this case, the upper pantograph mechanism 10 has one movable pivot 16 disposed below the fixed pivot 15, but the lower pantograph mechanism 10 has the movable pivot 16 disposed on both upper and lower sides of the fixed pivot 15. Therefore, it is possible to ensure the rigidity of the door body 4 as a whole.

  Also, on the side of the section vertical frame 9B corresponding to the upper pantograph mechanism 10, there are angle restricting members 22B on the front and rear sides of the pantograph mechanism 10, but the same member 22 as the angle restricting members 22A on the vertical frame 9A side at both ends is used. Then, since the two members 22 are arranged as a pair in the left and right direction, the number of types of members used for the angle restricting members 22A and 22B can be reduced to reduce the manufacturing cost.

  Moreover, the angle restricting members 22A and 22B are on both front and rear sides of the pantograph mechanism 10, and the fixed pivot 15 is provided on the left and right sides or one side of the adjustment shaft 24 across the angle restricting members 22A and 22B. The fixed pivot 15 can be stably supported by the front and rear angle restricting members 22 </ b> A and 22 </ b> B, and a decrease in rigidity at an intermediate portion of the door body 4 can be suppressed.

  If the movable pivot 16 of the pantograph mechanism 10 on both sides of the section vertical frame 9B is connected by the connecting means 27, both the pantograph mechanisms 10 will be extended and contracted together, and if the connection by the connecting means 27 is released, The pantograph mechanism 10 expands and contracts separately without interlocking.

  When connecting the two movable pivots 16 by the connecting means 27, for example, after engaging one recess 47a with one movable pivot 16, the connection plate 47 is placed around the one movable pivot 16 on the other movable pivot 16 side. And the other concave portion 47 a is engaged with the other movable pivot 16.

  In this way, the two front and rear connecting plates 47 are set upside down and left and right reversed so that each movable pivot 16 is held in the recess 47a, and then the two connecting plates 47 are fastened with the fasteners 48 in the front and rear direction. And fix it. Therefore, in this connecting means 27, it is only necessary to connect two connecting plates 47 at the front and rear, and therefore, compared to the case of the first embodiment in which the four connecting plates 47 are combined, the movable pivot 16 of the connecting means 27 is connected. There is an advantage that the connecting work and the like can be easily performed.

  In addition, since the two connecting plates 47 are stepped via the bent portion 47c, the connecting plates 47 are incorporated in a stepped manner in accordance with the gaps between the front and rear oblique members 12 and 13 even when there are few gaps. Is possible. In addition, by providing an insertion hole 47d in the vicinity of the bent portion 47c of the connecting plate 47 and inserting the fixture 48, the two connecting plates 47 can be fastened in the front-rear direction in the vicinity of the bent portion 47c. Therefore, the connecting plate 47 can be formed of a thin plate material.

  21 to 33 illustrate a third embodiment of the present invention. Each pantograph mechanism 10 of this embodiment has a fixed pivot 15 in the middle in the vertical direction on the side of the vertical frame 9A at both ends and the section vertical frame 9B, as shown in FIGS. 21, 22, and 29. The movable pivot 16 is provided on the upper side, which is one of the upper and lower sides, and the left and right oblique members 12 and 13 are not pivotally connected to the fixed pivot 15 on the side opposite to the movable pivot 16. . Accordingly, the angle restricting members 22A and 22B are provided in the vertical frame 9A and the divided vertical frame 9B at both ends corresponding to the upper half of each pantograph mechanism 10.

  In addition, on each vertical frame 9 side excluding the vertical frame 9A at both ends and the divided vertical frame 9B, an intermediate fixed pivot 15 in the vertical direction is pivotally attached to each vertical frame 9 in the same manner as in the embodiments, and movable on both the upper and lower sides. The pivot 16 is separated from the vertical frame 9 and is freely movable.

  Between the vertical frame 9A and the divided vertical frame 9B at both ends of the pantograph mechanism 10 and the vertical frame 9 adjacent to the vertical frame 9A, the portion indicated by the oblique lines in FIG. Reinforcing materials 50 and 51 are provided. The reinforcing members 50 and 51 are located on the rear side with respect to the front oblique member 12 and on the front side with respect to the rear oblique member 13, respectively. They are arranged at intervals in the direction.

  The angle restricting members 22A and 22B include the pantograph mechanism 10 as shown in FIGS. 22 to 28 and the angle restricting member 22B on the side of the section vertical frame 9B, and the angle restricting member 22A on the side of the vertical frame 9A in FIGS. Is disposed between the front and rear vertical bars 17 and is pivotally attached to the front and rear vertical bars 17 by an adjustment shaft 24 on the lower side.

  Further, as shown in FIGS. 22 to 28, the angle regulating member 22 </ b> B on the side of the section vertical frame 9 </ b> B is arranged on the adjustment shaft 24 straddling the front and rear vertical rails 17 and on both the left and right sides of the adjustment shaft 24. The fixed pivot 15 and the movable pivot 16 inserted through the left and right guide portions 30 are inserted in the front-rear direction. Further, as shown in FIGS. 29 to 33, the adjustment shaft 24, the fixed pivot 15, and the movable pivot 16 are inserted in the front-rear direction corresponding to the angle regulation member 22 </ b> B, as shown in FIGS. 29 to 33. Has been.

  As shown in FIGS. 26 and 32, synthetic resin bush bodies 52A and 52B are fitted between the front and rear longitudinal bars 17 and the angle regulating members 22A and 22B, respectively, at both front and rear ends of the fixed pivot 15. The bush bodies 52A and 52B have fitting portions 54 that fit into the through holes 53 of the angle regulating members 22A and 22B, and groove portions 56 that engage with the opposing end edges 55 inside the front and rear vertical bars 17. Opposing end edges 55 of the front and rear vertical bars 17 are formed in the entire length in the vertical direction of the front and rear vertical bars 17 so as to correspond to the respective fixed pivots 15 and are predetermined with respect to the grooves 56 of the bush bodies 52A and 52B. Is engaged through a gap.

  The movable pivot 16 is inserted into the guide portion 30 so as to straddle the front and rear angle regulating members 22A and 22B, and bush bodies 57A and 57B sliding up and down in the guide portion 30 are fixed to both front and rear ends. Yes. The bush bodies 57A and 57B are fitted into the guide part 30 through large-diameter insertion parts 30a formed on the angle regulating members 22A and 22B on one end side of the guide part 30, and the bush bodies 57A and 57B Movement toward the insertion portion 30a is prevented by the restricting means 26.

  As shown in FIGS. 22 to 31, the reinforcing members 50 and 51 are disposed between the front and rear oblique members 12 and 13, in proximity to the front and rear opposite oblique members 12 and 13, and correspond to each other. Between the inclined members 12 and 13, they are arranged at a predetermined interval in the front-rear direction. The reinforcing members 50 and 51 have the pivots 14 at the intersections between the vertical frames 9, the vertical frames 9 adjacent to the vertical frames 9A and 9b at both ends are fixed pivots 15, and the angle restricting member 22B side. Each is pivotally attached by a movable pivot 16.

  Of the oblique members 12 and 13 on the side of the vertical frame 9A at both ends and the sectioned vertical frame 9B, the ends of the oblique members 12 and 13 on the opposite side of the movable pivot 16 with respect to the fixed pivot 15 are shown in FIGS. As shown in FIG. 5, the vertical frame 9A and the divided vertical frame 9B are separated from the vertical frame 9B so as to be freely movable. In this portion, the slant members 12 and 13 and the reinforcing members 50 and 51 are connected to the other vertical frames 9. It is connected back and forth by a connecting shaft 58 at a position corresponding to the movable pivot 16. A width determining material is interposed between the oblique members 12 and 13 and the reinforcing members 50 and 51.

  In the case of an interlocking type in which the door body 4A expands and contracts, the left and right movable pivots 16 guided by the guide portions 30 of the angle restricting members 22A and 22B on the side of the section vertical frame 9B and the section vertical of the left and right pantograph mechanisms 10 are provided. The slant members 12 and 13 separated from the frame 9B are connected together by a connecting means 27 so as to be movable up and down.

  As shown in FIGS. 22 to 28, the connecting means 27 is configured to connect the movable pivot 16 between the front and rear reinforcing members 50 and 51, and an upper member 60 disposed on the upper side of the movable pivot 16, A lower member 61 disposed on the lower side of the movable pivot 16 and a fastener 62 such as a screw for fastening both members 60 and 61 across the movable pivot 16 are provided. Concave portions 60 a and 61 a that embrace the movable pivot 16 are formed in one or both of the upper member 60 and the lower member 61. The fastener 62 can be operated from the upper side of the upper member 60. Fasteners 62 are provided at three positions in the left-right direction so as to fasten both members 60, 61 up and down on the left and right sides of each movable pivot 16.

  The connecting means 63 for connecting the free ends of the oblique members 12 and 13 is also provided with an upper member 60, a lower member 61, and a fastener 62 as in the connecting means 27, and the connecting shaft 58 is connected to the connecting member 58. It is comprised so that it may connect. Further, the vertical frames 9 other than the vertical frames 9A and the divided vertical frames 9B at both ends are arranged on the front side of the pantograph mechanism 10, but vertical beams may be arranged on both front and rear sides of the pantograph mechanism 10. Other configurations are the same as those of the first embodiment.

  The telescopic gate can also be configured as illustrated in this embodiment. When the angle restricting members 22A and 22B are provided on the vertical frame 9A side and the divided vertical frame 9B side at both ends, the angle restricting members 22A and 22B can be provided on the upper half so as to correspond to the half in the vertical direction of each pantograph mechanism 10.

  For example, when the adjustment shaft 24 and the fixed pivot 15 are provided substantially at the center in the vertical direction of the pantograph mechanism 10, the angle regulating members 22 </ b> A and 22 </ b> B are arranged on the upper side from the adjustment shaft 24 and the upper guide. The part 30 may be configured to guide the movable pivot 16 on the upper side of the pantograph mechanism 10.

  When the angle restricting members 22A and 22B are arranged on the upper side from the adjusting shaft 24 and the like, the angle adjusting means 25 and the restricting means 26 are on the upper side of each pantograph mechanism 10, so that the lower side of the angle restricting members 22A and 22B. As compared with the case where the angle adjusting means 25 or the like is arranged, the adjustment or the like can be easily performed.

  Further, when the angle restricting members 22A and 22B are arranged on the upper side from the adjustment shaft 24 or the like, the oblique members 12 and 13 connected to the vertical frames 9A and the divided vertical frames 9B on both ends via the angle restricting members 22A and 22B etc. Although the number is reduced, the vertical frame 9A and the divided vertical frame 9B at both ends and the oblique members 12 and 13 between the adjacent vertical frames 9 are reinforced by the reinforcing members 50 and 51, whereby the vertical frames at both ends are reinforced. Since the rigidity of the pantograph mechanism 10 around the frame 9A and the section vertical frame 9B is improved, the rigidity of the door body 4 as a whole can be ensured.

  Further, by providing the reinforcing members 50 and 51 with a predetermined space between the inclined members 12 and 13, it is possible to suppress the shaking in the front-rear direction at the peripheral portions of the vertical frame 9A and the divided vertical frame 9B at both ends. it can. Therefore, although the reinforcing members 50 and 51 are necessary, the number of the angle regulating members 22A and 22B, the angle adjusting means 25, etc. is reduced as compared with the first embodiment, and there is an advantage that the assembling and the like are facilitated. . The reinforcing members 50 and 51 can be inserted into the hollow oblique members 12 and 13.

  Furthermore, since the bush bodies 52A and 52B at both the front and rear ends of the fixed pivot 15 are engaged with the front and rear vertical bars 17 of the section vertical frame 9B, the front and rear ends of the fixed pivot 15 can be less likely to swing left and right. The rigidity around the fixed pivot 15 is improved. The angle restricting members 22A and 22B rotate around the adjusting shaft 24 when the angle is adjusted by the angle adjusting means 25. In general, the adjustment allowance of the angle restricting members 22A and 22B is about several degrees with respect to the section vertical frame 9B. The clearance between the front / rear longitudinal beam 17 and the bush bodies 52A and 52B and / or the bush bodies 52A and 52B are, for example, slightly larger than that and because the fixed pivot 15 is in the vicinity of the adjusting shaft 24. It is possible to sufficiently absorb the elastic deformation or the like, and there is no fear that the front and rear vertical bars 17 are deformed.

  By connecting the movable pivot 16 and the like of each door 4A with the connecting means 27, each door 4A can be extended and contracted integrally. The connecting means 27 may be configured such that the upper member 60 and the lower member 61 are applied to the movable pivot 16 or the like from both the upper and lower sides and the fastener 62 is inserted from the upper side. be able to.

  Further, the movable pivot 16 on the upper end side of the oblique members 12, 13 reinforced by the reinforcing members 50, 51 is connected by the connecting means 27, and the connecting shaft 58 of the oblique members 12, 13 on the opposite side is connected by the connecting means. By connecting at 63, the load in the expansion / contraction direction at the time of expansion / contraction is transmitted to each other via the oblique members 12, 13 and the reinforcing members 50, 51, and each door body 4A is expanded / contracted smoothly. be able to.

  In particular, by connecting the connecting shaft 58 of the oblique members 12 and 13 opposite to the movable pivot 16 with the connecting means 63, the operating force can be transmitted between the left and right door bodies 4A via the connecting means 63. No excessive load is applied to the angle regulating members 22A and 22B. Therefore, it is possible to prevent the slant members 12 and 13 from being bent at the peripheral portion of the section vertical frame 9B, and to prevent the partial wear of the movable pivot 16 and the like at the peripheral portion of the section vertical frame 9B.

  If the connection means 27 and 63 are removed and the connection of the left and right door bodies 4A is released, each door body 4A is brought into a non-interlocking state, and each door body 4A can be expanded and contracted separately. In this case, the lower connecting means 63 is also removed, and the operating force at the time of expansion / contraction is transmitted to the door body 4A via the angle restriction members 22A and 22B. A large load is not applied to the members 22A and 22B.

  34 to 37 illustrate the fourth state of the present invention. In this embodiment, of the two upper and lower pantograph mechanisms 10, the upper and lower pantograph mechanisms 10 are approximately half the vertical width of the lower pantograph mechanism 10, and each pantograph mechanism 10 is shown in FIG. Reinforcing members 50 and 51 are provided substantially in parallel with the oblique members 12 and 13 at the hatched portions.

  As shown in FIGS. 34 and 35, the upper pantograph mechanism 10 has a fixed pivot 15 disposed at the lower intersection of the two upper and lower intersections, and a movable pivot 16 disposed at the upper intersection. ing. On the side of the section vertical frame 9B, a reinforcing member 50 is provided corresponding to the oblique member 12 between the movable pivot 16 of the angle regulating member 22B and the fixed pivot 15 of the vertical frame 9.

  In addition, as shown in FIGS. 35 and 36, there is no reinforcing material corresponding to the oblique member 13 between the fixed pivot 15 of the angle regulating member 22B and the movable pivot 16 on the vertical frame 9 side. May be provided.

  On the vertical frame 9A side, a reinforcing member 51 is provided corresponding to the oblique member 13 between the movable pivot 16 of the angle restricting member 22A and the fixed pivot 15 of the vertical frame 9, and the fixed pivot of the angle restricting member 22A. There is no reinforcing material in the portion corresponding to the slanting member 12 between 15 and the movable pivot 16 on the vertical frame 9 side. In addition, you may provide a reinforcing material also in this part.

  The lower pantograph mechanism 10 is substantially the same as in the third embodiment, but on the side of the vertical frame 9A at both ends, between the movable pivot 16 on the angle regulating member 22A side and the fixed pivot 15 of the vertical frame 9. In addition to the reinforcing member 51 corresponding to the oblique member 13, the reinforcing member 50 is provided corresponding to the oblique member 12 between the fixed pivot 15 and the connecting shaft 58 of the vertical frame 9. Other configurations are the same as those of the third embodiment.

  In this way, even when the upper and lower pantograph mechanisms 10 are about half as long as the lower pantograph mechanism 10, the upper and lower pantograph mechanisms 10 are formed by using the lower intersection of the pantograph mechanism 10 as the fixed pivot 15. The angle restricting members 22 </ b> A and 22 </ b> B can be disposed upward from the adjustment shaft 24. For this reason, the upper and lower angle regulating members 22A, 22B and the like can be configured in the same manner.

  Note that the upper intersection of the upper pantograph mechanism 10 may be the fixed pivot 15 and the lower intersection may be the movable pivot 16. In this case, the angle restricting member 22A of the upper pantograph mechanism 10 is used. , 22B may be arranged upside down.

  As mentioned above, although each embodiment of this invention was explained in full detail, this invention is not limited to each embodiment, A various change is possible in the range which does not deviate from the meaning. For example, in each embodiment, although the door main body 4 is divided into the 1st-3rd door body 4A by the division | segmentation vertical frame 9B, it is enough if there are two or more door bodies 4A. Moreover, in each embodiment, although the door main body 4 is provided in the doorway at the doorway, the door main body 4 comprised from the several door body 4A may be provided in the double opening type on both right and left sides. In the embodiment, the upper and lower two sets of pantograph mechanisms 10 are provided, but a plurality of sets of pantograph mechanisms 10 may be provided in the vertical direction.

  The angle restricting members 22A on the side of the vertical frame 9A at both ends of the first embodiment are integrally formed vertically like the angle restricting members 22B on the side of the sectioned vertical frame 9B, and they may be disposed opposite to each other in the front-rear direction. Good. In that case, the movable pivot 16 may be inserted in a doubly supported manner across the guide portion 30 of the front and rear angle regulating member 22A.

  Further, when the angle regulating members 22A and 22B are arranged on the one side movable pivot 16 side in the vertical direction from the adjustment shaft 24 as in the third and fourth embodiments, the upside down direction is the same as that in the third and fourth embodiments. May be provided. Further, the angle restricting members 22 </ b> A and 22 </ b> B may be disposed between the oblique members 12 and 13 before and after the pantograph mechanism 10.

  If the guide portions 30 of the angle restricting members 22A and 22B are formed in a long hole shape, the movable pivot 16 can be inserted back and forth, so that it is mechanically simple. However, if the structure can guide the movable pivot 16 side, it is a long hole shape. There is no need to penetrate through.

  The fixed pivot 15 and the guide part 30 need to be arranged on a straight line where the guide direction of the guide part 30 passes through the approximate center of the fixed pivot 15 or in the vicinity thereof. Straight members 12 and 13 of the pantograph mechanism 10 are straight members, but members bent to such an extent that they do not interfere during contraction may be used.

  The pantograph mechanism 10 may be provided with a movable pivot 16 on one or both upper and lower sides of the fixed pivot 15, and the movable pivot 16 on one or both of the upper and lower sides may be one or a plurality of two or more. Good. Further, the pantograph mechanism 10 may include the fixed pivot 15 provided with one or a plurality of movable pivots 16 only on one of the upper and lower sides. In that case, the end of the pantograph mechanism 10 on the opposite side of the movable pivot 16 on one side with respect to the fixed pivot 15 may be separated from the section vertical frame 9B.

  The reinforcing members 50 and 51 are the oblique members 12 and 13 of the pantograph mechanism 10, and the oblique members 12 and 13 between the vertical frame 9 adjacent to the vertical frame 9 </ b> A at both ends and the adjacent vertical frame 9 to the adjacent vertical frame 9 </ b> B. When the reinforcing members 50 and 51 are provided on 13, they may be provided on the oblique members 12 and 13 on the fixed pivot 15 side. In the case of the angle restricting members 22A and 22B extending on both the upper and lower sides of the adjustment shaft 24, the angle adjusting means 25 may be provided on one end side in the vertical direction of the angle restricting members 22A and 22B.

  In the case of the interlocking type in which each door body 4A is interlocked, the opposing ends of the movable side oblique members 12 and 13 of the left and right pantograph mechanisms 10 of the section vertical frame 9B are connected by the connecting means 27. Only the movable pivot 16 side of the left and right pantograph mechanisms 10 guided by the guide unit 30 may be used, or the opposite floating end side may be connected.

DESCRIPTION OF SYMBOLS 10 Pantograph mechanism 4 Door main body 4A Door body 9, 9A Vertical frame 9B Section vertical frame 12, 13 Oblique material 15 Fixed pivot 16 Movable pivot 17 Front / rear vertical beam 22A, 22B Angle regulation member 24 Adjustment shaft 25 Angle adjustment means 26 Restricting means 27 Connecting means 30 Guide portion 33 Adjustment hole 34 Fixing plates 50 and 51 Reinforcing material 58 Connecting shaft

Claims (9)

A vertical frame in the middle of a plurality of vertical frames connected to a pantograph mechanism that can expand and contract in the horizontal direction is used as a divided vertical frame, and the relative angle of the pantograph mechanism with respect to the vertical frame is regulated in the divided vertical frame. The angle regulating member is pivotally attached to be adjustable around an adjustment shaft, and the end of the pantograph mechanism on both the left and right sides is separately telescopically connected to the section vertical frame via the angle regulating member. And
The angle restricting member is provided with a fixed pivot of each pantograph mechanism and a guide portion for guiding the movable pivot of each pantograph mechanism so as to be movable in the vertical direction substantially symmetrically with respect to the adjustment axis. Telescopic gate to be. The telescopic gate according to claim 1, wherein the fixed pivot and the guide portion are arranged on a substantially straight line. The telescopic gate according to claim 1 or 2, wherein the pantograph mechanism includes the movable pivot on at least one of the upper and lower sides of the fixed pivot. The pantograph mechanism is provided with the movable pivot on one of the upper and lower sides of the fixed pivot,
The angle restricting member is provided with the guide portion for guiding the movable pivot on one side,
The telescopic gate according to claim 1 or 2, wherein an end portion of the pantograph mechanism on the opposite side to the movable pivot on one side with respect to the fixed pivot is separated from the section vertical frame.   Between the movable pivot on the side of the section vertical frame and at least the movable pivot on the side of the vertical frame adjacent to the section vertical frame, a reinforcing material is disposed substantially parallel to the oblique member having the movable pivot. The telescopic gate according to claim 4, wherein The telescopic gate according to any one of claims 1 to 5, further comprising angle adjusting means for adjusting the angle of the angle regulating member around the adjusting shaft on the opposite side of the angle regulating member from the adjusting shaft. . The telescopic gate according to any one of claims 1 to 6, further comprising connecting means for connecting the movable pivot shafts of the left and right pantograph mechanisms guided by the guide portion so as to be integrally movable in a vertical direction. . The telescopic gate according to any one of claims 1 to 7, wherein the angle restricting member is provided with restricting means for restricting movement of the movable pivot by maximum extension of the pantograph mechanism. The vertical frame is connected to the fixed pivot spanning the two sets of upper and lower pantograph mechanisms,
The upper pantograph mechanism is provided with the movable pivot at least above the fixed pivot,
The pantograph mechanism on the lower side includes the movable pivot on both upper and lower sides of the fixed pivot,
The telescopic gate according to any one of claims 1 to 7, wherein the angle regulating member is provided above the fixed pivot of each pantograph mechanism.

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