JP5717286B2 - Telescopic gate - Google Patents

Description

  The present invention relates to a telescopic gate provided with a door including a plurality of vertical frames and a pantograph mechanism, and opens and closes a part of the door divided into left and right by an intermediate divided vertical frame separately from the others. It is something that can be done.

  A door that includes a plurality of vertical frames arranged at substantially equal intervals in the left-right direction, and a pantograph mechanism that is configured to extend in the left-right direction by combining right-up inclined links and right-down inclined links in a crossing manner. In a telescopic gate with a body, among the multiple vertical frames, an intermediate vertical frame with drop bars is used as a divided vertical frame, and the moving vertical side door body and the suspension side door body are separated by this divided vertical frame. If the dropping bar is dropped into the pit on the ground side and the vertical rail is locked so that it cannot move in the left and right direction, the moving end side door body can be expanded and contracted separately from the suspension side door body. There is one that can be made (Patent Document 1).

  This telescopic gate is equipped with two sets of pantograph mechanisms where the inclined link intersects the vertical frame at two intersecting parts at the top and bottom, and the lower part of each pantograph mechanism is fixed on the lower axis. Is pivotally attached to the vertical frame, and each inclined link at the upper crossing is pivotally attached to the vertical frame by separate movable pivots in the front and rear directions so that the movable end side door body is closer to the moving end than the section vertical rail. Can be expanded and contracted separately from the suspension side door body.

No. 1-20472

  This type of telescopic gate can be opened and closed by expanding and contracting the moving end side door as necessary, so it has the advantage of being convenient and convenient compared to the case of opening and closing the entire door. is there.

  However, the conventional telescopic gate has two upper and lower pantograph mechanisms that are composed of short inclined links that intersect the vertical frame at two upper and lower intersections, and is adjacent to the upper and lower pantograph mechanisms. Although the parallel links are formed by the vertical frames, there is a problem that the upper and lower pantograph mechanisms are not integrated and it is difficult to ensure the rigidity of the entire door body. For this reason, there is a drawback in that when the vertical section frame is locked to the ground side by a drop bar and the door body moving end side door body is opened and closed, the vertical section side of the door body easily falls in the front-rear direction.

  In view of such a conventional problem, the present invention improves the rigidity of the door body including the vertical frame and the pantograph mechanism, locks the section vertical frame to the ground side, and expands and contracts a part of the door body to open and close the door body. It is an object of the present invention to provide a telescopic gate that can easily prevent the door body from shaking and falling in the front-rear direction on the section vertical frame side.

The present invention includes a plurality of vertical frames 9 arranged at substantially equal intervals in the left-right direction, and a right-upward inclined link 30 that intersects each vertical frame 9 at at least three intersections 32-34 in the vertical direction. wherein a left-side up tilt links 31 and pantograph mechanism 6 which is telescopically configured in the lateral direction in combination, the previous SL one point of the intersection 33 of the intersection 32 through 34 of three of at least the vertical direction and the longitudinal A fixed pivot 37 pivotally attached to the frame 9 so as not to move up and down , and at least the other intersections 32 and 34 among the three intersections 32 to 34 in the vertical direction are pivoted to the vertical frame 9 so as to be movable up and down. comprising a door body 5 comprising a movable pivot 38 to wear, the intermediate vertical frame 9 of said plurality of vertical frame 9 and divided vertical frame 23, the intersection between the medium and with respect to said section vertical frame 23 33 intersection 33 between intermediate the respective tilt links 30, 31 intersect at The pivot 37, 38 divided into a deflectable upper link 52 and lower link 53 and 55 around the said movable pivot 38 of the other respective intersecting portions 32, 34 with respect to the segment longitudinal frame 23 The inclined links 30 and 31 are separately provided so as to freely move up and down, and are provided for the pivots 37 and 38 of the intermediate intersection 33 on the opposite end sides of the upper links 52 and 54 and the lower links 53 and 55, respectively. The insertion part 62 is provided so as to protrude on the opposite side in the front-rear direction with respect to the other side.

Another aspect of the present invention is a plurality of vertical frames 9 arranged at substantially equal intervals in the left-right direction, and a right-upward inclination that intersects each vertical frame 9 at three intersecting portions 32-34 in the vertical direction. the link 30 and the left-side up tilt links 31 and pantograph mechanism 6 which is telescopically configured in the lateral direction in combination, an intermediate intersection 33 of the intersection 32 to 34 of the previous SL three in the vertical frame 9 A fixed pivot 37 pivotally mounted so as not to move up and down, and a movable pivot 38 pivotally mounted on the vertical frame 9 so that the upper and lower cross sections 32 and 34 of the three cross sections 32 to 34 can be moved up and down. comprising a door body 5 comprising, intermediate vertical frame 9 of said plurality of vertical frame 9 and divided vertical frame 23, each inclined to intersect at the intersection 33 between the medium and with respect to said section vertical frame 23 The upper links 52 and 54 that can refract the links 30 and 31 around the fixed pivot 37 and the lower link 53, 55, the movable pivot shaft 38 of each of the upper and lower intersecting portions 32, 34 is provided separately for each inclined link 30, 31 with respect to the section vertical frame 23 so as to be movable up and down separately. An insertion portion 62 for the fixed pivot 37 is provided on each opposite end side of the links 52 and 54 and the lower links 53 and 55 so as to protrude on the opposite side in the front-rear direction with respect to the other side.

  Each vertical frame 9 has front and rear vertical bars 17 and 18 disposed on both front and rear sides of the pantograph mechanism 6, and the divided vertical frame 23 corresponds to the front and rear vertical bars 17 and 18 and the right upward inclined link 30. Between the intermediate vertical beam 24 and the front and rear vertical beams 17 and 18. The intermediate vertical beam 24 disposed between the intermediate vertical beam 24 and the front and rear vertical beams 17 and 18. A fixed pivot 37 penetrating the intermediate vertical beam 24 back and forth may be provided between the front and rear vertical beams 17 and 18.

  Further, joints 57 to 60 are provided at the distal ends of the upper links 52 and 54 and the lower links 53 and 55, and the joints 57 to 60 are attached to the attachment parts 61 fitted to the links 52 to 55 and the attachments. The insertion portion 62 may be provided integrally with the distal end side of the portion 61.

  In addition, each of the joints 57 to 60 has a notch 73 that is substantially half of the attachment portion 61 corresponding to the insertion portion 62 on the other side, and an outer peripheral surface of the insertion portion 62 opposite to the attachment portion 61. May be formed in a circular arc shape, and the cutout portion 73 side of the mounting portion 61 may be formed in a recessed shape in which the other insertion portion 62 can be relatively rotated.

  Further, the projecting end surfaces of the joints 57 and 59 on the side of the front and rear vertical bars 17 and 18 are in contact with or close to the front and rear vertical bars 17 and 18 so as to be relatively rotatable, and the intermediate vertical bar 24 side. The insertion portions 62 of the joints 57 to 60 may include a fitting cylinder portion 75a that fits in the intermediate vertical beam 24 so as to be relatively rotatable.

  Further, when the horizontal width of the intermediate vertical beam 24 is made smaller than the horizontal width of the front and rear vertical beams 17 and 18 and the pantograph mechanism 6 is contracted, the divided vertical frame 23 and the divided vertical frame 23 are adjacent to each other. You may make it the outer periphery of the intermediate pivot 40 which pivotally mounts both the inclined links 30 and 31 in the middle with the vertical frame 9 on the contraction side abut on the intermediate vertical rail 24. The outer diameter of the intermediate pivot 40 that abuts on the intermediate vertical bar 24 may be made thinner than the other intermediate pivot 39.

  According to the present invention, the rigidity of the door body 5 including the vertical frame 9 and the pantograph mechanism 6 is improved, and when the section vertical frame 23 is locked to the ground side and a part of the door body 5 is expanded and contracted to open and close. In addition, there is an advantage that it is possible to easily prevent the door body 5 from shaking or falling in the front-rear direction on the side of the section vertical frame 23. In particular, since the insertion portion 62 for the pivot 37 on the opposite end sides of the upper links 52 and 54 and the lower links 53 and 55 protrudes on the opposite side in the front-rear direction with respect to the other side, the upper link is connected to the pivot 37. There is an advantage that the rigidity in the front-rear direction between 52 and 54 and the lower links 53 and 55 is improved.

It is the top view and front view of a telescopic gate which show the 1st Embodiment of this invention. It is a side view of a telescopic gate similarly. It is a plane sectional view of a fixed pivot part similarly. It is a plane sectional view of a movable pivot part similarly. It is a plane sectional view of an intermediate pivot part similarly. It is a plane sectional view of an intermediate pivot part similarly. It is a plane sectional view of the fixed pivot part by the side of an end frame similarly. It is a plane sectional view of the movable pivot part by the side of an end frame similarly. It is front sectional drawing of the fixed pivot part by the side of a division vertical frame similarly. It is a plane sectional view of the fixed pivot part by the side of a division vertical frame similarly. It is side surface sectional drawing of the fixed pivot part by the side of a division vertical frame similarly. It is a disassembled perspective view of the fixed pivot part by the side of a division vertical frame similarly. It is sectional drawing of a joint part similarly. It is a front sectional view of the movable pivot part on the same section vertical frame side. It is a plane sectional view of the movable pivot part by the side of a division vertical frame similarly. It is sectional drawing by the side of the joint of an inclination link similarly. It is a disassembled perspective view of the movable pivot part by the side of a division | segmentation vertical frame similarly. It is a front view when a moving end side door body is contracted similarly. It is an enlarged explanatory view of the principal part when a moving end side door body is contracted similarly. It is plane sectional drawing of the fixed pivot part by the side of a division | segmentation vertical frame which shows the 2nd Embodiment of this invention. It is the top view and front view of an expansion-contraction gate which show the 3rd Embodiment of this invention. It is a front view of the expansion-contraction gate which shows the 4th Embodiment of this invention. It is a front view of the expansion-contraction gate which shows the 5th Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 19 illustrate a first embodiment of a telescopic gate according to the present invention. In FIGS. 1A and 1B, reference numeral 1 denotes a suspension-side support column, 2 denotes a door-end support column, and the pair of support columns 1 and 2 are erected on the ground 4 on both the left and right sides of the doorway 3. Reference numeral 5 denotes an extendable door body, which is disposed between the suspension-side support column 1 and the door stop-side support column 2 so as to be able to expand and contract in the left-right direction so as to open and close the doorway 3.

  The door body 5 includes a pantograph mechanism 6 configured to be extendable in the left-right direction, a suspension side end frame 7 disposed at a suspension side end of the pantograph mechanism 6, and a door end side end of the pantograph mechanism 6. The pantograph mechanism 6 is sandwiched from both the front and rear sides between the door end side frame (moving side end frame) 8 and the both end frames 7, 8 and arranged at substantially equal intervals in the left and right direction (stretching direction). And a plurality of vertical frames 9.

  The suspension side end frame 7 is attached to the suspension side column 1 so as to be pivotable about the vertical axis via the hinge 10 so that the contracted door body 5 can be swiveled and accommodated with respect to the suspension side column 1. Has been. The door end frame 8 is provided with a handle 12, locking means (not shown), caster wheels 13, drop bars 14 and the like. The caster wheels 13 are for supporting the door body 5 so as to be movable on the ground 4 at the position of the door stop side end frame 8, and are disposed, for example, on both front and rear sides of the door stop side end frame 8. The dropping bar 14 is for locking the door end side end frame 8 on the door body 5 at a predetermined position on the telescopic path so as not to move. It is provided so as to be movable up and down, and engages with the drop holes 15a and 15b of the ground 4 when lowered.

  As shown in FIGS. 1 to 4, each vertical frame 9 includes a pair of front and rear vertical bars 17 and 18 disposed before and after the pantograph mechanism 6, and front and rear vertical bars 17 and 18 on both upper and lower sides of the pantograph mechanism 6. And a pair of connecting members 19 and 20 for connecting the upper and lower ends in the front-rear direction. The front and rear longitudinal bars 17 and 18 are provided with guide portions 17a and 18a such as guide grooves in the vertical direction facing each other.

  As shown in FIGS. 7 and 9, the end frames 7 and 8 are front and rear vertical bars 21 and 18 corresponding to the front and rear vertical bars 17 and 18 and the connecting members 19 and 20, respectively. 22, the front and rear vertical bars 21 and 22 are integrally provided with front and rear vertical bars 17 and 18 of the vertical frame 9 at both left and right ends. The vertical frames 9 at the left and right ends may be provided separately from the end frames 7 and 8 and connected by metal fittings or the like.

  Among the plurality of vertical frames 9, the vertical frame 9 in the middle in the left-right direction (for example, approximately the center in the left-right direction) serves as the divided vertical frame 23. As shown in FIG. 1, the division vertical frame 23 divides the door body 5 into a suspension side door body 27 and a moving end side door body 28, and the suspension source side door body 27 on both the left and right sides of the division vertical frame 23. And the moving end side door body 28 can be separately expanded and contracted.

  As shown in FIGS. 3, 9 to 11, 14, and 15, the section vertical frame 23 is arranged at the front and rear vertical bars 17 and 18 and at the approximate center in the front and rear direction between the front and rear vertical bars 17 and 18. And an intermediate vertical beam 24. The intermediate vertical beam 24 has a substantially cross-sectional H shape whose lateral width is smaller than that of the front and rear vertical beams 17 and 18, and guide portions such as guide grooves facing the guide portions 17 a and 18 a of the front and rear vertical beams 17 and 18 on both front and rear sides. 24a. The upper and lower ends of the intermediate vertical beam 24 are connected to the upper and lower connecting members 19 and 20.

  As shown in FIG. 1 and FIG. 2, caster wheels 25 and drop bars 26 are provided in the section vertical frame 23. The caster wheel 25 is for supporting the door 5 so as to be movable on the ground 4 at the position of the section vertical frame 23. The dropping bar 26 is for locking the section vertical frame 23 on the door body 5 so that it cannot move at a predetermined position on the expansion / contraction path, and is provided on one side of the section vertical frame 23 so as to be movable up and down (for example, the rear side). When it descends, it engages with the pit 29 of the ground 4.

  As shown in FIG. 1, the pantograph mechanism 6 includes a plurality of right-upward inclined links 30 and left-upward inclined links 31 arranged in parallel in the left-right direction at regular intervals. The frame 9 intersects at least at three intersections 32 to 34 in the vertical direction, and the adjacent vertical frames 9 intersect at two intermediate intersections 35 in the vertical direction. The inclined links 30 and 31 are made of a square pipe-shaped aluminum mold or the like.

  Of the three upper and lower intersecting portions 32 to 34 corresponding to the vertical frame 9, the upper and lower intermediate intersecting portions 33 are vertically moved by a fixed pivot 37 supported between the front and rear longitudinal bars 17 and 18, as shown in FIG. As shown in FIG. 4, the crossing portions 32 and 34 on both the upper and lower sides are pivotally supported with respect to the vertical frame 9 so as to be movable up and down. In the intermediate intersection 35 between the adjacent vertical frames 9, the inclined links 30 and 31 are pivotally supported by intermediate pivots 39 and 40 as shown in FIGS. 5 and 6.

  In each of the intersecting portions 32 to 34 corresponding to the vertical frame 9 excluding the section vertical frame 23, the fixed pivot 37 is fixed to the front and rear vertical bars 17 and 18 by fixing tools 41 such as rivets as shown in FIG. The fixed pivot 37 pivotally supports the inclined links 30 and 31 that are regulated at a predetermined interval by the width determining member 42. Further, as shown in FIG. 4, the upper and lower movable pivots 38 are supported by the longitudinal longitudinal bars 17 and 18 through a sliding body 44 fitted to both front and rear ends so as to be movable up and down. Inclined links 30 and 31 regulated at a predetermined interval by 45 are pivotally supported. The sliding body 44 is provided with a large diameter portion 44a having a diameter larger than the left and right widths of the front and rear vertical bars 17 and 18 so that the adjacent vertical frames 9 do not come into contact with each other even when the door body 5 is contracted. Yes.

  As shown in FIGS. 5 and 6, the intermediate pivots 39 and 40 are inserted into the inclined links 30 and 31 at both ends, and fixtures 46 and 47 such as rivets are provided on the opposite wall portions of the inclined links 30 and 31. It is fixed by. The intermediate pivots 39 and 40 are fitted with width-determining members 48 and 49 between the inclined links 30 and 31, but the outer diameter of the intermediate pivot 40 adjacent to the left and right sides of the section vertical frame 23, that is, the intermediate pivot 40. The upper width determining member 49 is as shown in FIG. 6, and has a smaller diameter than the outer diameter of the other portion shown in FIG. 5 on the intermediate pivot 39 side, that is, the outer diameter of the width determining member 48 on the intermediate pivot 39. Thin ones are used.

  In addition, you may unify into the small diameter width-determining material 49 shown in FIG. A portion corresponding to the width determining member 49 may be integrally provided on the outer periphery of the intermediate pivots 39 and 40. In the embodiment, the inclined links 30 and 31 are pivotally attached to the upper and lower two intersections 35 between the vertical frames 9 by the intermediate pivots 39 and 40. For example, the upper intersection 35 is on the suspension side. The intermediate pivots 39 and 40 may be disposed only at both ends of the door body 27 and the moving end side door body 28, and the pivots may be omitted in other intermediate portions.

  Of the three upper and lower crossing portions 32 to 34 on the side of the vertical frame 9 at the left and right ends integral with the end frames 7 and 8, at the middle crossing portion 33, as shown in FIG. The inclined links 30 and 31 are pivotally supported by the fixed pivot 37 supported on the upper and lower sides so as not to move up and down, and at the intersections 32 and 34 on both the upper and lower sides, as shown in FIG. The inclined link 31 is pivotally supported with respect to the vertical frame 9 so as to be movable up and down.

  As shown in FIGS. 9 to 12, at the upper and lower middle intersection 33 on the side of the section vertical frame 23, the upwardly rising inclined link 30 is connected to the upper link 52 on the suspension side door body 27 side and the moving end side door body 28 side. The upper left inclined link 31 is divided into an upper link 54 on the moving end side door body 28 side and a lower link 55 on the suspension side door body 27 side. The upper links 52 and 54 and the lower links 53 and 55 of the front and rear inclined links 30 and 31 are around the fixed pivot 37 of the section vertical frame 23 on both front and rear sides of the intermediate vertical rail 24 disposed between the front and rear inclined links 30 and 31. It is pivotally supported in a refractive manner. Further, in the intersecting portions 32 and 34 on both the upper and lower sides of the section vertical frame 23, the front and rear inclined links 30 and 31 are two movable pivots arranged on the front and rear sides of the intermediate vertical rail 24 as shown in FIGS. 38 are pivotally supported separately by 38.

  As shown in FIGS. 9 to 12, the fixed pivot shaft 37 on the side of the section vertical frame 23 passes through the intermediate vertical beam 24 in the front-rear direction and is supported between the front and rear vertical beams 17, 18. Are fixed to the front and rear longitudinal bars 17 and 18 by a fixing tool 56 such as screws. The upper links 52 and 54 of the front and rear inclined links 30 and 31 have joints 57 and 59, and the lower links 53 and 55 have joints 58 and 60, respectively. Are supported by the fixed pivot 37 on the front and rear sides of the intermediate vertical rail 24 via the joints 57 to 60 separately on the front and rear sides thereof.

  Each of the joints 57 to 60 is made of a synthetic resin, and as shown in FIGS. 9 and 11 to 13, a rectangular tube-shaped attachment portion 61 detachably fitted to the links 52 to 55, and the attachment portion And an insertion portion 62 that is provided integrally with the distal end side of 61 and through which the fixed pivot 37 is inserted. The attachment portion 61 has a left and right width in which the left and right wall portions 63 come into contact with the left and right inner surfaces of the links 52 to 55 when inserted into the links 52 to 55. A reinforcing portion 64 is provided to connect the middle to the left and right to reinforce the attachment portion 61 from the inside. Further, the front and rear wall portions 65 of the mounting portion 61 have engaging claws 68 that are detachably engaged with the engaging portions 67 from the inside when inserted into the links 52 to 55, and the left and right sides of the engaging claws 68. There are provided ridges 69 provided on both sides and contacting the front and rear inner surfaces of the links 52 to 55 when inserted into the links 52 to 55.

  The insertion part 62 of each joint 57-60 is arrange | positioned forward and backward on the fixed pivot 37, and each joint 57-60 is approached so that the opposing end surface 71 may adjoin in the approximate center of the front-back direction of each link 52-55. The insertion part 62 is deviated from the attachment part 61 on the opposite side. Accordingly, each of the joints 57 to 60 has a notch 73 on the front end side of the attachment portion 61 corresponding to the insertion portion 62 on the other side, approximately half the front-rear width of the attachment portion 61, and about the remaining half. The insertion part 62 is integrally connected to the attachment part 61.

  The insertion portion 62 includes a corresponding portion 74 that substantially corresponds to the front-rear width of the links 52 to 55, and a protruding portion 75 that protrudes from the corresponding portion 74 to the opposite side of the facing end surface 71. Corresponding portions 74 are disposed in the respective cutout portions 73 of the other joints 57 to 60, and their opposing end surfaces 71 are in slidable contact. The outer peripheral surface on the opposite side of the attachment portion 61 of the corresponding portion 74 of each joint 57 to 60 is formed in an arc shape having a substantially same diameter, and the insertion portion 62 is relatively rotated on the attachment portion 61 side of the notch portion 73. It is formed in a possible concave shape.

  The protrusions 75 of the joints 57 to 60 on the front and rear vertical bars 17 and 18 have a large diameter that does not fit into the guide parts 17 a and 18 a of the front and rear vertical bars 17 and 18, and the protruding end surfaces thereof are connected to the front and rear vertical bars 17 and 18. It protrudes to a position where it abuts or is close to each other so as to be relatively rotatable. The protrusions 75 of the joints 57 to 60 on the side of the intermediate vertical beam 24 are in contact with or close to the end surface of the intermediate vertical beam 24 and a small-diameter fitting cylinder portion 75a that is fitted in the intermediate vertical beam 24 so as to be relatively rotatable. A stepped portion 75b is provided.

  At the upper and lower intersections 32 and 34 on the side of the section vertical frame 23, as shown in FIGS. 14 to 17, two front and rear movable pivots 38 corresponding to the front and rear inclined links 30 and 31 are provided separately and vertically movable. It has been. Each movable pivot 38 has a sliding body 44A slidable on the guide portions 17a and 18a of the front and rear vertical bars 17 and 18, and a sliding body 44B slidable on the guide section 24a of the intermediate vertical bar 24 and mounted on both front and rear sides. The joints 77 and 78 of the inclined links 30 and 31 are fitted between the sliding bodies 44A and 44B. The sliding bodies 44A and 44B are fixed to both ends of the movable pivot shaft 38 by a fixture 79 such as a rivet, and the sliding body 44A on the front and rear longitudinal bars 17 and 18 side has a large-diameter portion 44a like the other sliding bodies 44. Is provided.

  Each of the joints 77 and 78 is made of synthetic resin, and includes an attachment portion 80 that is detachably attached to the inclined links 30 and 31, and an insertion portion 81 that is integrally formed on the distal end side of the attachment portion 80. The outer peripheral surface of the insertion portion 81 opposite to the attachment portion 80 is not only smaller than the radius of the large-diameter portion 44a of the sliding body 44A, but also has a small diameter that is less than about half of the left and right width of the inclined links 30 and 31, and is circular. Even when the moving end side door body 28 is contracted to the shortest state in the maximum extended state of the suspension side door body 27, the suspension surface is suspended as shown in FIGS. The joints 77 and 78 of the inclined links 30 and 31 of the former-side door body 27, and especially the insertion portion 81 thereof are configured not to contact the inclined links 30 and 31 of the moving-end side door body 28.

  The attachment portion 80 is the same as the attachment portion 61 of the other joints 57 to 60, and includes a reinforcement portion 64 that reinforces the attachment portion 80 from the inside, and an engagement portion 67 when inserted into the inclined links 30 and 31. Engaging claws 68 that are detachably engaged from the inside, and are provided on both the left and right sides of the engaging claws 68 and contact the front and rear inner surfaces of the inclined links 30, 31 when inserted into the inclined links 30, 31. And a protrusion 69.

  In the telescopic gate having such a configuration, in the state where the door body 5 is extended and the doorway 3 is closed, the drop bar 26 of the section vertical frame 23 is dropped into the drop hole 29 as shown in FIG. After the movement side end frame 8 is moved to the section vertical frame 23 side in the direction indicated by the arrow a, the suspension side door body 27 remains in the extended state as shown in FIG. Thus, the moving end side door body 28 can be contracted to open a part of the entrance 3.

  That is, the door body 5 has the upper links 52 and 54 and the lower links 53 and 55 that can refract the inclined links 30 and 31 intersecting the section vertical frame 23 at the upper and lower intersecting portions 32 to 34 around the fixed pivot 37. And each movable pivot 38 on the section vertical frame 23 is provided separately for each inclined link 30 and 31 so as to be vertically movable with respect to the section vertical frame 23. Thus, the pantograph mechanism 6 of the moving end side door body 28 and the suspension source side door body 27 can be expanded and contracted separately. Therefore, if the moving end side end frame 8 is moved to the side of the section vertical frame 23 after the section vertical frame 23 is locked to the ground 4 by the dropping bar 26 so as not to move, the moving side end frame 8 and the section vertical frame 23 are moved. The pantograph mechanism 6 between the two can be contracted independently, and the moving end side door body 28 can be contracted regardless of the suspension side door body 27.

  When the moving end side door body 28 contracts, the movable pivot 38 pivotally attaches the inclined links 30 and 31 to the section vertical frame 23 at the upper intersection 32 as the pantograph mechanism 6 of the moving end side door body 28 contracts. And the movable pivot 38 that pivotally attaches the inclined links 30 and 31 to the section vertical frame 23 at the lower intersection 34 is lowered. Then, when the moving end side door body 28 contracts to the shortest state, as shown in FIG. 19, the width determining member 49 on the outer periphery of the intermediate pivot 40 contacts the side surface of the intermediate vertical rail 24 of the section vertical frame 23.

  In this way, when the moving end side door body 28 is contracted, the width determining member 49 on the intermediate pivot 40 adjacent to the section vertical frame 23 comes into contact with the intermediate vertical rail 24 of the section vertical frame 23 to be in the shortest state. Since the gap determining member 49 on the intermediate pivot 40 has a small diameter, the gap between the vertical frames 9 at the time of contraction can be reduced, so that the folding length at the time of contraction can be shortened as much as possible.

  In addition, the upper link 54 of the inclined link 31 of the moving end side door body 28 stands up to a state close to an upright state, while the inclined link 31 of the suspension side door body 27 is in a state of being collapsed to the maximum extended state. Since the insertion portion 81 of the joint 78 has a small-diameter curved surface 81a on the side opposite to the attachment portion 80, the insertion portion 81 on the suspension side door body 27 side and the moving end side door body 28 side as shown in FIG. Interference with the upper link 54 can be avoided. Therefore, the length when the moving end side door body 28 is contracted and folded can be shortened as much as possible. The same applies to the lower side.

  After the moving end side door body 28 is contracted, the dropping rod 14 of the moving side end frame 8 may be engaged with the dropping hole 15a of the ground 4 and locked. If the drop rods 14 and 26 are removed and the moving side end frame 8 is moved to the suspension side, the entire door 5 can be contracted as shown by a two-dot chain line in FIG.

  The door body 5 includes a pantograph mechanism 6 in which a right-upward inclined link 30 and a left-upward inclined link 31 intersect with the vertical frame 9 at three intersecting portions 32 to 34 in the vertical direction, and the vertical 3 Of the intersecting portions 32 to 34, the upper and lower intermediate intersecting portions 33 are pivotally fixed to the vertical frame 9 by the fixed pivot 37, and the upper and lower intersecting portions 32 and 34 are vertically movable 9 by the movable pivot 38. Therefore, the rigidity of the door body 5 is improved as compared with the conventional structure having two sets of upper and lower pantograph mechanisms 6, and the vertical section frame 23 is locked to the ground 4 side. Even when the moving end side of the door body 5 is expanded and contracted, the door body 5 can be easily prevented from shaking and falling in the front-rear direction on the section vertical frame 23 side.

  When assembling the door body 5, for example, when the joints 57 to 60 are attached to the links 52 to 55, if the attachment portion 61 is inserted into the links 52 to 55, the engagement claws 68 before and after the attachment portion 61 are linked. Since the engaging portions 67 on both the front and rear sides of 52 to 55 are engaged, the joints 57 to 60 can be easily attached to the end portions of the links 52 to 55. Moreover, since the attachment part 61 has the reinforcement part 64 between the left-right side wall part 63 which contacts the inner surface of the left-right direction of the link 52-55, it is enough also with respect to the external force added to each link 52-55 at the time of opening and closing of the door body 5. And the occurrence of rattling between the joints 57-60 and the links 52-55 can be prevented.

  Moreover, since the attachment portion 61 contacts the inner surfaces in the front-rear direction of the links 52 to 55 through the protrusions 69, the attachment portion 61 is compared to the case where the entire front and rear wall portions 65 are in contact with the inner surfaces of the links 52 to 55. Can be easily inserted or press-fitted into the links 52-55. Further, a reinforcing portion 64 is provided in the middle of the mounting portion 61 in the front-rear direction, and since there is a space between the reinforcing portion 64 and the front-rear wall portion 65, the engaging claw 68 can be easily disposed and the engaging claw 68 The amount of deformation can be easily secured.

  The joints 57 to 59 of the upper links 52 and 54 and the lower links 53 and 55 have a notch 73 that is substantially half of the attachment portion 61 on the opposite side, and the outer periphery of the insertion portion 62 opposite to the attachment portion 61. Is formed in an arc shape, and the notch 73 side of the attachment portion 61 is formed in a recessed shape so that the other insertion portion 62 can be relatively rotated, so that the upper link 52 of each inclined link 30, 31, 54 and the lower links 53 and 55 are arranged at substantially the same position in the front-rear direction, and the upper links 52 and 54 and the lower links 53 and 55 can be pivotally mounted around the fixed pivot 37 so that they can be bent (relatively rotated). When the door body 5 is extended, the upper links 52 and 54 and the lower links 53 and 55 of the inclined links 30 and 31 can be extended substantially in a straight line.

  Accordingly, each of the inclined links 30 and 31 crossing the section vertical frame 23 is divided into upper links 52 and 54 and lower links 53 and 55 so as to be refracted by the fixed pivot 37 so as to be part of the door body 5. Although the movable end side door body 28 can be opened and closed separately from the suspension source side door body 27, the upper links 52 and 54 and the lower links 53 of the inclined links 30 and 31 when the door body 5 is extended. , 55 are in a bent state or the like, and the appearance of the peripheral portion of the section vertical frame 23 of the door body 5 is not impaired.

  In addition, since the insertion portions 62 of the joints 57 to 59 are provided with projecting portions 75 projecting from the links 52 to 55 to the front and rear longitudinal beams 17 and 18 and the intermediate longitudinal beam 24 side, In spite of the part of the insertion portion 62 being disposed, the joints 57 to 59 can be provided with insertion portions 62 that are long in the front-rear direction, and the upper links 52 and 54, the lower links 53, 55 can be prevented as much as possible from falling in the front-rear direction, and the rigidity in the front-rear direction in the vicinity of the section vertical frame 23 can be easily secured. Further, the projecting portion 75 on the side of the intermediate vertical beam 24 has a fitting cylinder portion 75a, and the fitting cylinder portion 75a is fitted in the guide portion 24a of the intermediate vertical beam 24. The front-rear width of the portion 24a can be used effectively, and the length in the front-rear direction of the insertion portion 62 of the suspension source on the intermediate vertical rail 24 side can be ensured to the maximum.

  FIG. 20 illustrates a second embodiment of the present invention. The intermediate vertical beam 24 has a substantially H-shaped cross section having substantially the same width as the left and right widths of the front and rear vertical beams 17 and 18, and is substantially the same as the guide portions 17 a and 18 a of the front and rear vertical beams 17 and 18 on both front and rear sides. A guide portion 24a having the same shape is formed. The insertion portion 62 of the joint 57 fitted to the fixed pivot 37 of the intermediate crossing portion 33 is fitted into the front and rear vertical bars 17 and 18 through the guide portions 17a and 18a of the front and rear vertical bars 17 and 18. A cylindrical portion 62a is provided. Note that the sliding bodies 44A and 44B on the upper and lower movable pivots 38 also have a shape corresponding to the guide portion 24a of the intermediate vertical rail 24.

  As described above, the intermediate vertical beam 24 may be configured to have substantially the same width as the front and rear vertical beams 17 and 18. Further, when the lateral width of the intermediate vertical beam 24 is increased, the fitting cylinder portion 62a is increased when the fitting cylinder portion 62a that fits into the intermediate vertical beam 24 is provided in the insertion portion 62 of the joints 58 and 60. Since the diameter can be made, the inclination of the lower links 53 and 55 in the front-rear direction can be suppressed to be smaller than in the case where the fitting cylinder portion 62a has a small diameter. When the fitting tube portion 62a that fits in the longitudinal longitudinal bars 17 and 18 is provided in the insertion portion 62 of the joints 57 and 59, the length of the insertion portion 62 can be further increased. The inclination to the direction can be kept small.

  FIG. 21 illustrates a third embodiment of the present invention. Among the plurality of vertical frames 9 of the door body 5, the intermediate specific vertical frame 9 is set as a divided vertical frame 23, which is closer to the hanging vertical side than the divided vertical frame 23 and closest to the divided vertical frame 23. A drop bar 26 is provided at 9a.

  In order to be able to open and close the moving end side door body 28 alone, it is necessary to lock the section vertical frame 23 to the fixed side of the ground 4 or the like so as to be immovable by using appropriate locking means such as a drop bar 26. . In this case, even if the drop bar 26 is provided on the vertical frame 9 a close to the section vertical frame 23 of the suspension source side door body 27, the partition vertical frame 23 can be locked via the pantograph mechanism 6 of the suspension source side door body 27. it can. Accordingly, it is not necessary to provide the drop bar 26 in the section vertical frame 23 itself, and the vertical frame 9 of the suspension side door body 27 other than the moving end side door body 28 and closest to the suspension source side column 1. A drop bar 26 may be provided in any of the vertical frames 9a except for.

  FIG. 22 illustrates a fourth embodiment of the present invention. The door body 5 can be opened and closed by either the left door body 5a or the right door body 5b as required. The door body 5 is divided into a left door body 5a and a right door body 5b with a section vertical frame 23 therebetween. The end frames 8a and 8b at both ends of the door body 5 have locking means, handles 12a and 12b, caster wheels 13a and 13b, drop bars 14a and 14b, etc., and can be locked to the columns 1a and 1b on both sides of the doorway 3. is there. Other configurations including the section vertical frame 23, the fixed pivot 37, and the movable pivot 38 are the same as those in the first embodiment.

  In this embodiment, if the section vertical frame 23 is dropped on the ground 4 and locked with the stick 26, both the left door body 5a and the right door body 5b can be opened and closed as necessary, and the section vertical frame 23 is locked. If it cancels | releases, the door body 5 containing the left door body 5a and the right door body 5b can be opened and closed to any side of the right and left support | pillars 1a and 1b.

  FIG. 23 illustrates a fifth embodiment of the present invention. The door body 5 employs a pantograph mechanism 6 in which the inclined links 30 and 31 intersect the vertical frame 9 at four intersecting portions 32 to 34 in the vertical direction. Of the four upper and lower intersecting portions 32 to 35 on the side of the section vertical frame 23, the upper and lower intersecting portions 32 and 35 are configured in the same manner as in the first embodiment. The intermediate lower crossing portion 34 is configured in the same manner as in the first embodiment, and the front and rear inclined links 30 and 31 are divided into upper links 52a and 54a and lower links 53a and 55a. In the middle upper intersection 33, the front and rear inclined links 30, 31 are divided into upper links 52b, 55b and lower links 53b, 55b, and the upper links 52b, 54b and lower links 53b, 55b are divided into the vertical section frame 23. Are pivotably mounted by a front and rear movable pivot shaft 38 that can be moved up and down separately. Other configurations are the same as those of the first embodiment.

  As described above, the door body 5 can be configured by using the pantograph mechanism 6 in which the inclined links 30 and 31 intersect the vertical frame 9 at four positions in the vertical direction. Therefore, the inclined links 30 and 31 and the vertical frame 9 only need to intersect at three or more locations in the vertical direction.

  In that case, each of the inclined links 30 and 31 intersecting the sectioned vertical frame 23 at each intermediate intersection 32 and 34 are divided into upper links 52a, 54a, 52b and 54b and lower links 53a, 55a, 53b and 55b. The upper link 52a, 54a and the lower link 53a, 55a are pivotally attached by a fixed pivot 37 at one intermediate crossing portion 34 so that they can be bent, and the other intermediate crossing portion 33 can be moved up and down separately. The upper links 52b and 54b and the lower links 53b and 55b may be pivotally attached by the two movable pivots 38 so that they can be bent.

  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 body 5 is divided into two of the moving end side door body 28 and the suspension side door body 27 by the divided vertical frame 23, the vertical frame 9 arranged in a large number in the left-right direction. Among them, a plurality of divided vertical frames 23 are arranged across a plurality of vertical frames 9, for example, the number of vertical frames 9 equal to or more than the number of intersecting portions 32 to 34 on the vertical frame 9. The door body 5 may be divided into at least three sections, and the door body 5 may be opened and closed by dividing into a plurality of sections different from the first section, the first section, the second section, and the like from the moving end side.

  The shape and structure of each member such as the front and rear vertical beams 17 and 18 constituting the vertical frame 9, the intermediate vertical beam 24 of the section vertical frame 23, the inclined links 30 and 31, and the joints 57 to 60, 77 and 78 can be arbitrarily changed. It is. In addition, the number of the vertical frames 9 can be appropriately changed according to the length of the door body 5, but the inclined links 30, 31 are arranged on one side of the divided vertical frame 23 so as to straddle between the intersecting portions 32 to 34 at both upper and lower ends. It is desirable that at least one set is arranged in an X shape, or the number of vertical frames 9 equal to or greater than the number of intersections 32 to 34 on the vertical frame 9 is arranged. The number of intersections 32 to 34 with respect to the vertical frame 9 of the inclined links 30 and 31 may be three or more. A pipe-shaped material is suitable for the width determining material.

6 Pantograph mechanism 9 Vertical frame 17, 18 Front and rear vertical beam 23 Section vertical frame 24 Intermediate vertical beam 30 Right upward inclined link 31 Left upward inclined link 32-34 Intersection 37 Fixed pivot 38 Movable pivot 40 Middle pivot 52, 54 Upper link 53 55 Lower link 57-60 Joint 61 Attachment portion 62 Insertion portion 73 Notch portion

Claims (8)

A plurality of vertical frames (9) arranged at substantially equal intervals in the left-right direction, and a right-upward slope that intersects each vertical frame (9) at at least three intersections (32 to 34) in the vertical direction link (30) and the left-side up tilt links (31) stretching in the lateral direction by combining a freely configured pantograph mechanism (6), among the pre-Symbol least three of the intersection of the vertical direction (32 to 34) other of the vertical frame (9) fixed pivot for vertical movement incapable pivoted to (37), wherein at least three of the intersection of the vertical cross section of one place (33) of the (32-34) A door body (5) including a movable pivot (38) pivotably mounted on the vertical frame (9) so that each of the intersecting portions (32 , 34) can be vertically moved,
An intermediate vertical frame (9) of the plurality of vertical frames (9) is defined as a divided vertical frame (23),
The axis of intersection between intermediate the respective tilt links crossing (30, 31) in said section vertical frame the intersection between the medium and with respect to (23) (33) (33) (37, 38) around Dividing into upper link (52, 54) and lower link (53, 55) that can be refracted,
The movable pivot (38) of each of the other intersections (32, 34) is provided separately vertically movable for each of the inclined links (30, 31) with respect to the section vertical frame (23),
An insertion portion (62) for the pivot (37 , 38 ) of the intermediate crossing portion (33) is provided on the opposite side of each of the opposed ends of the upper link (52, 54) and the lower link (53, 55). A telescopic gate characterized by being protruded on the opposite side in the front-rear direction. A plurality of vertical frames (9) arranged at substantially equal intervals in the left-right direction, and a right-upward inclined link intersecting each vertical frame (9) at three intersections (32 to 34) in the vertical direction (30) and the left-side up tilt links (31) stretching in the lateral direction by combining a freely configured pantograph mechanism (6), an intermediate of intersection of the intersection of the front Symbol three (32-34) A fixed pivot (37) pivotally mounted on the vertical frame (9) so as not to move up and down (33), and upper and lower intersections (32, 34) among the three intersections (32 to 34). A door (5) including a movable pivot (38) pivotably attached to the vertical frame (9) so as to move up and down;
An intermediate vertical frame (9) of the plurality of vertical frames (9) is defined as a divided vertical frame (23),
Said section vertical frame (23) with respect to the respective tilt links that intersect at the intersection between the medium (33) with a (30, 31) the fixed pivot (37) deflectable upper link around (52, 54) And the lower link (53, 55)
The movable pivot (38) of each of the upper and lower intersections (32, 34) is provided separately vertically movable for each inclined link (30, 31) with respect to the section vertical frame (23),
On each opposing end side of the upper link (52, 54) and the lower link (53, 55), an insertion portion (62) for the fixed pivot (37) is provided on the opposite side in the front-rear direction with respect to the other side. A telescopic gate characterized by being protruded. Each vertical frame (9) has front and rear longitudinal bars (17, 18) disposed on both front and rear sides of the pantograph mechanism (6),
The section vertical frame (23) corresponds to the front and rear vertical bars (17, 18) and is disposed between the right-upward inclined link (30) and the left-upward inclined link (31). )
The movable pivot (38) on the section vertical frame (23) is provided between the intermediate vertical beam (24) and the front and rear vertical beams (17, 18) so as to be movable up and down.
The telescopic gate according to claim 1 or 2, wherein the fixed pivot (37) passing through the intermediate vertical beam (24) in the front-rear direction is provided between the front and rear vertical beams (17, 18). A joint (57-60) is provided at the tip of the upper link (52, 54) and the lower link (53, 55),
Each of the joints (57-60) includes an attachment portion (61) that fits to each of the links (52-55), and the insertion portion (62) that is integrally provided on the distal end side of the attachment portion (61). The telescopic gate according to claim 3 , characterized by comprising: Each of the joints (57 to 60) has a cutout portion (73) that is substantially half of the attachment portion (61) corresponding to the insertion portion (62) on the other side.
An outer peripheral surface of the insertion portion (62) opposite to the attachment portion (61) is formed in an arc shape,
The telescopic type according to claim 4, wherein the notch (73) side of the attachment part (61) is formed in a recessed shape so that the insertion part (62) on the other side can be relatively rotated. Gate. The projecting end surfaces of the joints (62) of the joints (57, 59) on the front and rear vertical bars (17, 18) are in contact with or close to the front and rear vertical bars (17, 18) so as to be relatively rotatable. ,
The insertion part (62) of the joint (57-60) on the side of the intermediate vertical beam (24) has a fitting cylinder part (75a) fitted into the intermediate vertical beam (24) so as to be relatively rotatable. The telescopic gate according to claim 4 or 5, characterized in that Making the left and right width of the intermediate vertical beam (24) smaller than the left and right width of the front and rear vertical beam (17, 18);
When the pantograph mechanism (6) is contracted, the two inclined links (30) are located between the section vertical frame (23) and the contraction-side vertical frame (9) adjacent to the section vertical frame (23). 31) The telescopic gate according to claim 3, wherein the outer periphery of the intermediate pivot (40) pivotally attached to the intermediate vertical rail (24) is in contact with the intermediate vertical rail (24). The telescopic gate according to claim 7, wherein an outer diameter of the intermediate pivot (40) that abuts on the intermediate vertical rail (24) is smaller than that of the other intermediate pivot (39).

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