JP5916090B2 - Telescopic gate - Google Patents

Description

  The present invention relates to a telescopic gate corresponding to an inclined land.

  The telescopic gates that can be opened and closed in the tilt direction along the sloping ground are used for the sloping ground, and the vertical gates that are arranged at almost equal intervals in the sloping direction and the sloping direction can be stretched. The upper and lower two crossing parts of each pantograph mechanism are pivotally attached to the vertical frame by a fixed pivot, and the lower crossing is formed. Some movable pivots are supported by an angle regulating member fixed to a vertical frame so that the angle can be adjusted (PTL 1).

  The vertical frame has front and rear longitudinal bars arranged on both front and rear sides of the pantograph mechanism, and a fixed pivot that pivotally supports the upper intersection of the pantograph mechanism is supported between the front and rear longitudinal bars in the front and rear direction. A pair of front and rear angle restriction members pivotally supported by a fixed pivot so as to be adjustable in angle are disposed between the vertical bars. Each angle restricting member is inclined downward from the fixed pivot on the left and right sides of the vertical frame, and the front and rear ends of the movable pivot are guided by the front and rear angle restricting members so as to be movable up and down. The lower end portion of each angle restricting member is fixed to the fixing bracket of the front and rear vertical bars so that the angle can be adjusted around the fixed pivot.

Japanese Examined Patent Publication No. 61-53509

  Conventional telescopic gates for slopes have the disadvantage that some doorways cannot be opened and closed as necessary. That is, in the conventional telescopic gate, the movable pivot that pivotally supports the lower crossing portion of the front and rear inclined links of the pantograph mechanism is integrally provided across the front and rear angle regulating members, and when the pantograph mechanism is expanded and contracted Since the left and right inclined links move up and down integrally via the movable pivot, the pantograph mechanism can be expanded and contracted integrally over the entire length even when it is not necessary to open the entrance and exit due to the entry and exit of a person.

  Therefore, if part of the doorway cannot be opened and closed as necessary, and the door body is long and large, a large force is required for the expansion and contraction operation of the pantograph mechanism, and if there is a drop bar in the middle of the door body The opening / closing operation becomes very troublesome because the operation of the dropping rod is required each time the opening / closing operation is performed. Especially in the case of sloping ground, since the ground is inclined to one side in the left-right direction, it is necessary to move the door body in the expansion and contraction direction against the inclination on either the open side or the closed side. There is a problem that handling becomes further troublesome.

  In view of such a conventional problem, an object of the present invention is to provide an extendable gate that can be easily opened and closed by expanding and contracting a part of a door body as necessary.

According to the present invention, any one of a plurality of vertical frames arranged at substantially equal intervals in the inclination direction and a plurality of upper and lower intersections arranged in the inclination direction so as to be extendable and contracted is formed by a fixed pivot. A pantograph mechanism pivotally attached to the vertical frame, and a movable pivot of the other intersecting portion of the plurality of upper and lower intersecting portions of the pantograph mechanism provided to the vertical frame so as to be adjustable in angle around the fixed pivot. A telescopic gate provided with an angle restricting member that guides the pantograph mechanism so as to freely move up and down, and any one of the middle of the plurality of vertical frames is set as a divided vertical frame, and the divided vertical frame The pantograph mechanisms on both the left and right sides of the pantograph mechanism can be separately extended and retracted, the angle restricting members are disposed between the front and rear inclined links of the pantograph mechanism, and the front and rear inclined links of the angle restricting members The movable pivot Those having a guide portion for guiding back and forth separately vertically movable cantilever.

It said angle regulating member wherein the vertical frame at both ends of the inclined direction and the segment vertical frame provided, among the tilt links of said pantograph mechanism, are arranged substantially linearly in the lateral through the fixed pivot axis of the segment vertical frame The inclined links of the respective pantograph mechanisms may be configured to be foldable around the pivot axis, and the movable pivot axes of the inclined links on both sides of the section vertical frame may be provided separately and vertically movable on the angle regulating member.

A plurality of pantograph mechanisms may be provided in the vertical direction, and the angle restricting member may be provided for each of the pantograph mechanisms in the vertical frame and the divided vertical frame at both ends. The vertical frame may be a shall which have a vertical bar before and after and the fixed pivot is arranged on both sides before and after is支架before and after the pantograph mechanism.

The pantograph mechanism may have two sets of upper and lower, and may include a connecting link that connects the angle restricting members of the pantograph mechanisms . The angle regulating member may be adjustable in angle between a state substantially parallel to the vertical frame and a state inclined with respect to the vertical frame.

  According to the present invention, there is an advantage that it can be easily opened and closed by expanding and contracting a part of the door body as required, even though it is suitable for sloping ground.

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 a side view of the telescopic gate. It is front sectional drawing of the 1st door body part. It is a partially broken side view of the principal part including the same angle regulating member and interlocking / fixing means. It is front sectional drawing of the principal part containing the same angle control member and interlocking | linkage / fixing means. It is a partially broken top view of the fixed pivot part by the side of the same division vertical frame. It is a partially broken top view of the angle control member and movable pivot part by the side of the same division vertical frame. It is a partially broken plan view of the interlocking / fixing means portion on the same vertical frame side. It is a partially broken top view of the fixed pivot part by the side of the same vertical frame. It is a partially broken top view of the fixed pivot part by the side of the end frame. It is a partially broken plan view of the angle regulating member and the movable pivot portion on the same end frame side. It is a partially broken plan view of the interlocking / fixing means portion on the same end frame side. It is a partially broken top view of the edge part side part of the same inclination link. It is a partially broken top view of the intermediate part of the inclined link. It is a disassembled perspective view of the joint part by the side of the fixed pivot. It is front sectional drawing of the expansion-contraction gate which shows the 2nd Embodiment of this invention. It is front sectional drawing of the expansion-contraction gate which shows the 3rd Embodiment of this invention. It is front sectional drawing of the expansion-contraction gate which shows the 4th Embodiment of this invention. It is a side view of the telescopic gate. It is front sectional drawing of the expansion-contraction gate which shows the 5th Embodiment of this invention. It is side surface sectional drawing of the expansion-contraction gate. It is front sectional drawing of the interlocking | linkage and fixing means which shows the 6th Embodiment of this invention. It is side surface sectional drawing of the interlocking | linkage and fixing means. It is front sectional drawing of the expansion-contraction gate which shows the 7th Embodiment of this invention. It is front sectional drawing of the expansion-contraction gate which shows the 8th Embodiment of this invention. It is the same side view. It is the same side view. It is an expanded sectional view of the connection link part.

  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 is used by being installed at the entrance 2 of the slope 1, and as shown in FIGS. 1 and 2, a pair of left and right support columns 3 arranged substantially vertically on the left and right sides of the slope 1, A door body 4 is provided between the columns 3 so as to be extendable in the left-right direction. The door body 4 is provided with end frames 5 at both left and right ends. Each end frame 5 is provided with an opening / closing handle 6 and a locking means so that the door body 4 can be opened and closed along the inclined ground 1 from both the left and right sides. The door body 4 may be a single-open type that opens and closes from either the left or right side, or a double-open type that opens and closes from the middle to the left and right sides.

  The door body 4 includes a plurality of vertical frames 7 arranged in a substantially vertical direction at substantially equal intervals in the tilt direction, end frames 5 connected to vertical frames 71 at both left and right ends, and a right-up and a left-up. The inclined links 8 and 9 that are inclined are sequentially connected in an X shape in the inclination direction so as to be stretchable and any one of the plurality of upper and lower intersections 10 and 11 is connected to each vertical frame by a fixed pivot 12. 7 and a plurality of upper and lower sets of pantograph mechanisms 13 connected to the upper and lower sides.

  The door main body 4 has a plurality of vertical frames 7, one of which is a divided vertical frame 72, and a plurality of, for example, three first to third door bodies 14-in the inclined direction by the divided vertical frame 72. The door bodies 14 to 16 on both the left and right sides of each section vertical frame 72 are configured to expand and contract separately.

  Each vertical frame 7 including the vertical frame 71 and the divided vertical frame 72 includes a pair of front and rear vertical bars 17 and 18 disposed before and after the pantograph mechanism 13 as shown on the side of the divided vertical frame 72 in FIG. The pantograph mechanism 13 includes a pair of connecting members 19 and 20 that connect the upper and lower ends of the front and rear longitudinal bars 17 and 18 in the front-rear direction on both upper and lower sides. Each end frame 5 is configured in the same manner as each vertical frame 7 such as having front and rear vertical frames 21 and 22 and a connecting member for connecting the upper and lower ends thereof (see FIG. 9). Each end frame 5 has a wider left and right width than the vertical frame 7, and as shown in FIGS. 10 to 12, the vertical frames 71 at both the left and right ends of the door body 4 are integrally provided on each end frame 5. Yes. The end frame 5 and the vertical frame 71 may have separate structures.

  As shown in FIG. 3, the vertical frame 71 at both ends of the door body 4 and the middle divided vertical frame 72 correspond to the angle regulating member 23 that regulates the inclination angle of each pantograph mechanism 13 and correspond vertically when adjusting the angle. There is provided interlocking / fixing means 24 for interlocking both angle restricting members 23 and fixing both angle restricting members 23 to the vertical frames 71 and 72 after adjustment. The end frame 5 and the section vertical frame 72 are provided with caster wheels 25 that travel on the inclined ground 1 when opened and closed at the lower ends of the front and rear vertical bars 17 and 18. Also, the rear vertical frame 18 of the section vertical frame 72 and the rear vertical frame 22 of the end frame 5 are provided with a drop bar 27a that is slidably held by the holding member 26 as shown in FIG. Is provided, and the door main body 4 can be locked to the ground side as required by engaging / disengaging the drop bar 27a with the ground-side drop hole 27b. The dropping bar 27a may be provided on both front and rear sides of the vertical frames 5, 72 and the like.

  As shown in FIGS. 1 to 3, each pantograph mechanism 13 includes a large number of inclined links 8 in the inclination direction intersecting at two intersecting portions 10, 11, 28, and 29 at upper and lower positions at substantially equal intervals in the inclination direction. 9, and the inclined links 8, 9 are pivotally attached to the intersections 10, 11, 28, 29 by pivots 12, 30 to 32 such as a fixed pivot 12 and a movable pivot 30 in the front-rear direction. Has been. The inclined links 8 and 9 of the upper and lower pantograph mechanisms 13 are disposed in opposite directions so as to be substantially symmetrical in the vertical direction when they are substantially horizontal in the left and right direction, and are vertically spaced at substantially equal intervals in the inclined direction. Two intersections 10, 11, 28, 29 are provided. Of the two upper and lower intersections 10 and 11 corresponding to each vertical frame 7, one of the upper and lower crossing parts 10 and 11 in both the pantograph mechanisms 13, for example, the upper crossing part 10 in the upper pantograph mechanism 13, In the lower pantograph mechanism 13, the lower intersections 11 are pivotally supported on the vertical frame 7 by fixed pivots 12.

  6, 9, and 10, each fixed pivot 12 is supported between the front and rear vertical bars 17 and 18, and is fixed to the front and rear vertical bars 17 and 18 by fasteners 33 such as screws and rivets at both front and rear ends. Yes. As shown in FIG. 9, the fixed pivot 12 on each vertical frame 7 excluding the vertical frame 71 and the divided vertical frame 72 of the door body 4 has a cylindrical width determining member 34, and the front and rear inclined links 8, 9 is rotatably provided. Further, on the fixed pivot 12 of the vertical frame 71 at both ends of the door main body 4, as shown in FIG. 10, a width determining member 34 is interposed, and the front and rear inclined links 8, 9 are interposed between the inclined links 8, 9. An arranged angle regulating member 23 is rotatably provided.

  Further, on the fixed pivot 12 of the section vertical frame 72, as shown in FIG. 6, front and rear inclined links 8, 9 and an angle regulating member 23 arranged between the inclined links 8, 9 are rotatably provided. It has been. When the door bodies 14 to 16 on both sides of the section vertical frame 72 extend and contract, the front and rear inclined links 8 and 9 that are substantially straight across the fixed pivot 12, that is, the section vertical frame 72 is pivotally supported by the fixed pivot 12. The front and rear inclined links 8, 9 are divided into link members 8a, 8b, 9a, 9b on both sides of the fixed pivot 12, as shown in FIGS. 5 and 6, and the link members 8a, 8a, 9b of the front inclined link 8 are separated. 8b and the link members 9a, 9b of the inclined link 9 on the rear side are pivotally supported via joints 35, 36 so that they can be separately rotated and refracted around the fixed pivot 12 respectively. Therefore, the link members 8 a, 8 b, 9 a, 9 b of the inclined links 8, 9 pivotally attached by the fixed pivot 12 are connected so as to be foldable around the fixed pivot 12.

  The crossing portions 10 and 11 on the opposite sides of the top and bottom of the crossing portions 10 and 11 of the fixed pivot 12 of each pantograph mechanism 13 and the top and bottom crossing portions 28 and 29 between adjacent vertical frames 7 are shown in FIG. As shown in FIGS. 11, 13, and 14, it is pivotally attached by pivots 30 to 32. As shown in FIG. 7 and FIG. 11, the vertical frame 71 and the vertical axis 71 and the vertical axis 71 and the vertical axis 71 that intersect with the vertical axis 71 and the vertical axis 71 are vertically independent from each other. A movable pivot 30 is provided, and each movable pivot 30 is supported by the angle regulating member 23 via a sliding body 38 so as to be slidable in the vertical direction separately. The movable pivot 30 on the side of the section vertical frame 72 is inserted and fixed to a joint 37 at the tip of the inclined links 8 and 9 as shown in FIG.

  Each pantograph mechanism 13 is disposed at intersections 28 and 29 between at least the vertical frames 7 and corresponds to one side of the vertical frame 71 and the divided vertical frame 72 on the same side as the angle regulating member 23. Since the width-determining member 34 on the outer periphery of the pivot shafts 31 and 32 contacts the angle regulating member 23 when the pantograph mechanism 13 contracts as shown in FIG. 14, the diameter is smaller than that of the other width-determining members 34 (see FIG. 13). Thus, the folding length of the pantograph mechanism 13 is configured to be small. In addition, you may make the diameter determining material 34 of all the pivots 31 and 32 into a small diameter.

  As shown in FIGS. 6 and 15, the joints 35 and 36 are provided integrally with attachment portions 35 a and 36 a that are detachably inserted into the end portions of the inclined links 8 and 9, and the attachment portions 35 a and 36 a, and It has shaft insertion parts 35b and 36b through which the fixed pivot 12 is inserted. There are two types of joints 35, 36. In both joints 35, 36, shaft insertion portions 35b, 36b are offset from the front and rear sides with respect to the attachment portions 35a, 36a, and end surfaces of the shaft insertion portions 35b, 36b. Are opposed to each other within the front-rear width of the attachment portions 35a, 36a.

  Of the two types of joints 35, 36, the shaft insertion portion 35b of the joint 35 on the angle regulating member 23 side is short in the front-rear direction, and the shaft insertion portion 36b of the joint 36 on the opposite side is long in the front-rear direction. This is because the inclined links 8 and 9 are located closer to the angle regulating member 23 than the longitudinal longitudinal bars 17 and 18. In addition, the length of the shaft insertion portion 36b of the joint 36 may be shortened, and the width determining material may be disposed in that portion. The joints 35 and 36 may be of the same type by making the lengths of the shaft insertion portions 35b and 36b substantially the same.

  The angle regulating member 23 and the interlocking / fixing means 24 are provided corresponding to the vertical frame 71 and the section vertical frame 72 of the door body 4. As shown in FIGS. 1 to 3, each angle regulating member 23 is pivotally attached to the vertical frame 71 and the section vertical frame 72 between the front and rear inclined links 8 and 9 by the fixed pivot 12 and fixed. Projecting from the pivot 12 to the opposite pantograph mechanism 13 in the upside down direction and inclined to the vertical frame 71 and the section vertical frame 72 in the left and right direction, and the projecting end side is interlocking / fixing means between the pantograph mechanisms 13 24.

  As shown in FIGS. 4 to 6 and 11, the angle restricting member 23 has longitudinal guide portions 23 a on both front and rear sides, and each guide portion 23 a has a sliding body 38 on the movable pivot 30 side of the inclined links 8 and 9. Is provided so as to be slidable up and down, and a regulating body 39 is provided for regulating the movable pivot 30 via the sliding body 38 in the maximum extension state of the pantograph mechanism 13. The restricting body 39 is disposed in the guide portions 23a on both the front and rear sides of the angle restricting member 23, and is fixed so that the position thereof can be adjusted by a fixture 39a such as a bolt or a nut inserted into the two partition walls 23b between the both guide portions 23a. ing. The restricting body 39 has a long hole 39b in the longitudinal direction of the angle restricting member 23, and is fixed by a fixing means 39a such as a bolt inserted through the long hole 39b.

  As shown in FIGS. 4, 5, 8, and 12, the interlocking / fixing means 24 interlocks both angle regulating members 23 corresponding to the top and bottom when adjusting the tilt angle around the fixed pivot 12. For fixing the angle regulating member 23 to the vertical frame 71 and the divided vertical frame 72, the vertical frame 71 is provided between the upper and lower pantograph mechanisms 13, and the connecting link 44 is pivotally supported on the divided vertical frame 72 by the pivot 42. Each angle restricting member 23 is connected to both ends of the connecting link 44 by fastening means 45 so that the angle can be adjusted. The connecting link 44 is plate-shaped, and the middle in the longitudinal direction is pivotally supported by the pivot 42. Cylindrical width-determining members 46 are fitted to the pivot 42 on both front and rear sides of the connecting link 44, and both front and rear ends are fixed to the front and rear vertical bars 17 and 18 by fixing tools 47 such as screws.

  As shown in FIGS. 4 and 5, in the angle regulating member 23, a connecting portion 48 is constituted by two partition walls 23b protruding in the longitudinal direction from the guide portion 23a, and the longitudinal adjustment holes 48a are formed in the two partition walls 23b. Is formed. The distal end portion of the connecting link 44 is inserted between the two partition walls 23 b of the angle regulating member 23.

  As shown in FIGS. 4, 8, and 12, the fastening means 45 is connected to a bolt 45a inserted into the adjustment hole 48a of the partition wall 23b and the through-hole of the connection link 44, and a nut 45b screwed into the bolt 45a. It comprises a locking means 45c such as a gear washer interposed between the link 44 and the connecting portion 48. When the fastening by the fastening means 45 is released, the both angle restricting member 23 is connected via the connecting link 44. The two angle restricting members 23 are fixed to the vertical frame 71 and the section vertical frame 72 via the connecting link 44 at the time of fastening. The adjustment hole 48a may be provided in the connection link 44.

  Between the longitudinal frame 71 and the longitudinal longitudinal bars 17 and 18 of the section longitudinal frame 72, an angle regulating member 23 is disposed at a substantially center in the longitudinal direction. Is arranged. Therefore, the angle restricting member 23 and the inclined links 8 and 9 are arranged substantially symmetrically.

  In this type of telescopic gate, if the angle of each angle regulating member 23 is adjusted in accordance with the inclination angle of the inclined ground 1, the upper and lower pantograph mechanisms 13 are inclined so as to be substantially parallel to the inclined ground 1. Since each pantograph mechanism 13 expands and contracts along the slope 1 when opening and closing, the entrance 2 can be opened and closed while the caster wheel 25 travels along the slope 1.

  At this time, the inclined links 8 and 9 of the pantograph mechanism 13 are rotated around the fixed pivot 12, whereas the movable pivot 30 that is paired with the fixed pivot 12 is moved up and down along the angle regulating member 23. Since the inclined links 8 and 9 on the movable pivot 30 side rotate around the movable pivot 30, the pantograph mechanism 13 is moved at a predetermined tilt angle by the angle regulating member 23 on the line segment connecting the fixed pivot 12 and the movable pivot 30. Can be regulated.

  At the time of construction on the slope 1, the angle of each angle regulating member 23 is adjusted at the construction site according to the slope 1, and the corresponding upper and lower angle regulating members 23 are connected via the connecting link 44 of the interlocking / fixing means 24. Since the upper and lower angle restricting members 23 are interlocked and rotate in the reverse direction around the fixed pivot 12, the angle restricting member 23 can be easily handled at the time of adjusting the angle, and can be easily and efficiently operated. It is possible to perform construction with high accuracy according to the inclination angle of the slope 1.

  For example, after the support pillars 3 are erected on both the left and right sides of the inclined ground 1, the upper end frame 5 of the door body 4 in a contracted state is connected to the upper support pillar 3 through the locking means. Next, after releasing the fastening means 45 of the interlocking / fixing means 24 so that the upper and lower angle regulating members 23 can be interlocked, the door body 4 is extended while running the caster wheels 25 along the inclined ground 1, The lower end frame 5 is connected to the lower strut 3 via a locking means. If necessary, the drop bar 27a of each section vertical frame 72 is dropped into the drop hole 27b to fix the door body 4 to the ground.

  If the door body 4 is extended along the inclined ground 1 after releasing the fastening means 45 of the interlocking / fixing means 24, the movable pivot 30 of each pantograph mechanism 13 is lowered or raised along each angle restricting member 23. Since the pantograph mechanism 13 is inclined along the inclined ground 1, each angle regulating member 23 is rotated in conjunction with the interlocking / fixing means 24. Accordingly, the upper angle restricting member 23 is moved around the upper fixed pivot 12 in the direction indicated by the arrow a in FIG. 3, and the lower angle restricting member 23 is moved around the lower fixed pivot 12 in the direction indicated by the arrow b in FIG. Each can be rotated in the opposite direction by substantially the same angle.

  Even if the rotation resistance of the angle restricting member 23 of each pantograph mechanism 13 varies, one angle restricting member 23 that is easy to rotate when the door body 4 is extended rotates around the fixed pivot 12. As a result, an external force in the rotational direction is applied to the distal end portion of the other angle regulating member 23 which is difficult to rotate from the angle regulating member 23 via the connecting link 44 of the interlocking / fixing means 24, and the connecting link 44 is used. In order to assist the rotation of the other angle regulating member 23, the upper and lower angle regulating members 23 can be smoothly rotated in conjunction with each other.

  As a result, the upper and lower pantograph mechanisms 13 and the angle restricting member 23 become angles suitable for the inclination angle of the inclined ground 1 at the construction site. The restriction member 23 may be fastened, and each angle restriction member 23 may be fixed to the vertical frame 71 and the section vertical frame 72 via the connecting link 44, the fastening means 45, and the fixed pivot 12 at the inclination angle.

  If the fastening means 45 is fastened and fixed, the upper and lower angle restricting members 23 are in a fixed state with respect to the vertical frame 71 and the section vertical frame 72, so that the upper and lower angle restricting members 23 connect the interlocking / fixing means 24 during angle adjustment. In spite of being interlocked with each other, the robustness of the door body 4 is improved, and the opening / closing operation can be performed smoothly.

  Also, structurally, there is an angle restricting member 23 between the front and rear inclined links 8 and 9, and the movable pivot 30 is guided by the guide portions 23a on both front and rear sides of the angle restricting member 23 so as to be movable up and down. Compared with the case where the angle restricting members 23 are provided on both front and rear sides of the inclined links 8 and 9, the number of the angle restricting members 23 can be reduced to one and the structure can be simplified. Moreover, even when the door body 4 is extended to adjust the angle of the angle restricting member 23, an external force is applied substantially evenly from the movable pivots 30 on both the front and rear sides, and the angle restricting member 23 is smoothly moved around the fixed pivot 12. It can be rotated.

  Furthermore, since the angle restricting member 23 between the front and rear inclined links 8 and 9 may be connected to the connecting link 44 of the interlocking / fixing means 24, compared to the case where the angle restricting member 23 is on both front and rear sides of the inclined links 8 and 9. Thus, the structure of the interlocking / fixing means 24 can be simplified.

  When the door bodies 14 to 16 are contracted, the inclined links 8 and 9 on the fixed pivot 12 side on the section vertical frame 72 are divided into left and right, and the inclined links 8 and 9 on the fixed pivot 12 side are separated from the four. The left and right inclined links 8 and 9 on the movable pivot 30 side constituting the node parallel link mechanism are supported by the angle regulating member 23 so as to be separately movable up and down via the movable pivot 30, and thus each door body 14 to 16. The pantograph mechanism 13 on the side expands and contracts independently of the pantograph mechanisms 13 of the other door bodies 14 to 16. Therefore, since the first to third door bodies 14 to 16 constituting the door body 4 can be opened and closed as necessary, there is an advantage that the door body 4 can be easily opened and closed as compared with the case where the entire door body 4 is always opened and closed.

  For example, when a person goes in and out, the second and third door bodies 15 and 16 remain in an extended state, and only the first door body 14 is expanded and contracted to open and close a part of the entrance 2. At this time, if the drop bar 27a of the section vertical frame 72 is dropped into the drop hole 27b, the handle 6 is gripped and the end frame 5 is moved to the lower side, as shown by a two-dot chain line in FIG. Only the first door body 14 can be contracted to open a part of the doorway 2. Accordingly, since only the first door body 14 can be opened, there is an advantage that the door body 4 can be easily and lightly opened and closed as necessary, even though it is for the inclined land 1.

  Further, when the vehicle enters and leaves, for example, the first to third door bodies 14 to 16 are contracted to open the entire entrance 2. In this case, the dropping rod 27a is removed from the dropping hole 27b to unlock each of the divided vertical frames 72, and then the end frame 5 is moved to the lower side.

  The door body 4 before being connected to the column 3 is bound by a band or the like in a contracted state in which the vertical frames 7 have the same height, and the angle regulating members 23 are parallel to the vertical frame 7. Therefore, if the angle restricting member 23 is fixed by the interlocking / fixing means 24 in a state in which the angle restricting member 23 is oriented in the vertical direction parallel to the vertical frames 71 and 72, and the inclination angle is set to approximately 0 degrees, the door main body 4 is placed horizontally. It can also be used when installed at the doorway 2.

  FIG. 16 illustrates a second embodiment of the present invention. In this embodiment, of the two upper and lower intersecting portions 10 and 11 of the upper and lower pantograph mechanism 13, the intersecting portions 10 and 11 on the side close to the opposite pantograph mechanism 13 and the angle regulating member 23 are vertically framed by the fixed pivot 12. The movable pivot 30 of the crossing portions 10 and 11 on the far side is provided on the guide portion 23a of the angle regulating member 23 so as to be movable up and down. Other configurations are the same as those of the first embodiment.

  In this way, the fixed pivot 12 and the movable pivot 30 may be arranged upside down. However, in this case, if the distance between the fixed pivot 12 and the fastening means 45 is sufficiently secured relative to the distance between the fixed pivot 12 and the movable pivot 30 in order to reduce the influence of play or the like, the angle regulating member There is a problem that the length of 23 becomes longer than that of the first embodiment.

  FIG. 17 illustrates a third embodiment of the present invention. In this embodiment, the fixed pivot 12 is disposed at the middle of the upper and lower pantograph mechanisms 13 and the movable pivot 30 is disposed on both upper and lower sides thereof. Other configurations are the same as those in the first and second embodiments.

  Thus, the movable pivot 30 may be arranged on both the upper and lower sides of the fixed pivot 12 and the movable pivot 30 may be guided by the angle regulating member 23. In this case, since the number of the movable pivots 30 guided by the angle restricting member 23 increases, there is an advantage that the overall robustness of the door body 4 is improved.

  18 and 19 illustrate a fourth embodiment of the present invention. In this embodiment, the fixed pivot 12 on the vertical frame 71 and the section vertical frame 72 is provided with the front and rear inclined links 8 and 9 of the pantograph mechanism 13 and a pair of front and rear angle restricting members 23 disposed on both front and rear sides of the pantograph mechanism 13. And are pivotally supported.

  Each angle restricting member 23 is provided with a guide portion 23a for the movable pivot 30 in the longitudinal direction on opposite sides in the front-rear direction, and is connected back and forth by a connecting member 55 on the side opposite to the fixed pivot 12, and the connecting member 55 A connecting portion 48 for the interlocking / fixing means 24 is provided. The connecting portion 48 is connected to the connecting link 44 of the interlocking / fixing means 24 via the fastening means 45. The guide portion 23a of each angle regulating member 23 guides the movable pivot 30 so as to be movable up and down. Therefore, when the pantograph mechanism 13 expands and contracts separately on the left and right sides of the divided vertical frame 72, the movable pivots 30 of the front and rear inclined links 8 and 9 are guided separately by the angle regulating member 23. Other configurations are the same as those of the first and other embodiments.

  In this way, the angle restricting members 23 pivotally supported by the fixed pivot 12 are arranged on both the front and rear sides of the pantograph mechanism 13, and the connecting ends 48 are provided by connecting the free ends of the angle restricting members 23 back and forth. The connecting portion 48 may be connected to the connecting link 44 of the interlocking / fixing means 24.

  20 and 21 illustrate a fifth embodiment of the present invention. In this embodiment, the angle regulating member 23 is pivotally supported by the fixed pivot 12 of the upper intersection 10 of the upper and lower pantograph mechanisms 13, and the lower movable pivot 30 is guided by the angle regulating member 23 so as to be movable up and down. It is like that. The angle restricting members 23 are arranged on the left and right sides of the vertical frame 71 and the section vertical frame 72 so as to incline in the same direction from the fixed pivot 12 and are substantially parallel to each other. It is connected to the connecting link 44 of the interlocking / fixing means 24.

  The interlocking / fixing means 24 is fixed to the vertical frame 71 and the section vertical frame 72 between the pantograph mechanism 13 and the connecting link 44 arranged substantially parallel to the vertical frame 71 and the section vertical frame 72 before or after the pantograph mechanism 13. The fixing bracket 57 and the fastening means 45 for fixing the connecting link 44 to the fixing bracket 57 are provided. The upper and lower ends of the connecting link 44 are pivotally attached to the angle restricting members 23 by connecting shafts 51.

  The fixing bracket 57 is formed with an adjustment hole 57a having a size corresponding to the angle adjustment allowance of the angle restricting member 23, and the bolt 45a of the fastening means 45 inserted through the connection link 44 is inserted through the adjustment hole 57a. The fastening means 45 is provided with a locking means such as a locking washer in addition to a nut 45b screwed into the bolt 45a. The fixed bracket 57 is fixed to the vertical frame 71 and the section vertical frame 72. The connecting link 44 may be provided on both the front and rear sides. Other configurations are the same as those of the first embodiment.

  Also in this case, if the fixing of the connecting link 44 by the fastening means 45 of the interlocking / fixing means 24 is released, the parallel link mechanism is constituted by the upper and lower angle regulating members 23, the connecting link 44, the section vertical frame 72 and the like. Therefore, when the door body 4 is extended, each angle regulating member 23 is rotated around the fixed pivot 12 in the same direction. The connecting link 44 is parallel to the section vertical frame 72 and the like, but when each angle regulating member 23 rotates around the fixed pivot 12, the bolt 45a moves within the range of the adjustment hole 57a of the fixed bracket 57. Then, after the adjustment, the connecting link 44 is fastened to the fixed bracket 57 by the fastening means 45, so that each angle restricting member 23 is connected to the vertical frame 71 and the section vertical frame 72 via the fixed bracket 57, the connecting link 44, the fixed pivot 12 and the like. Can be fixed. Therefore, even in the case of such a configuration, it can be carried out in the same manner as in the first embodiment.

  When the connecting link 44 is formed of a straight member, the connecting link 44 interferes with the fixed pivot 12 of the lower pantograph mechanism 13 when contracted. It cannot be rotated until it becomes substantially parallel to the vertical frame 72, and it is used within a range of inclination angles at which both do not interfere. However, if the connecting link 44 is formed in a bent shape as shown by a two-dot chain line in FIG. 24, the angle regulating member 23 can be substantially parallel to the vertical frame 71 and the section vertical frame 72.

  22 and 23 illustrate a sixth embodiment of the present invention. In this embodiment, the angle regulating member 23 includes an adjustment member 60 that is slidable in the longitudinal direction, and a fixing means 61 that fixes the adjustment member 60 to the angle regulating member 23 at a sliding position in the longitudinal direction. A connection link 44 is pivotally attached to 60 by a connection shaft 51. The connecting portion 48 is provided with a longitudinal adjusting hole 48a and a fixing hole 48b. The adjustment member 60 has a U shape sandwiching the connection link 44, and is provided with a protrusion 60a that is slidably fitted into the adjustment hole 48a and through which the connection shaft 51 is inserted, and a fixing insertion hole 60b. ing. The fixing means 61 has a bolt 61a inserted through the fixing hole 48b and the insertion hole 60b, and a nut 61b screwed into the bolt 61a.

  In this case, if the fixing means 61 is loosened, the angle restricting member 23 and the connecting link 44 are interlocked via the adjusting member 60 and the connecting shaft 51, and the angle restricting member 23 is indicated by an arrow a around the fixed pivot 12. When rotating in the direction, the adjustment member 60 slides in the direction indicated by the arrow c, and the upper and lower angle regulating members 23 rotate by the same angle corresponding to the inclination angle of the inclined ground 1. Then, after adjusting the angle, if the adjusting member 60 is fixed to the angle restricting member 23 by the fixing means 61, a triangle having apexes of the fixed pivot 12, the pivot 42 and the connecting shaft 51 is formed, and the angle restricting member 23 is fixed. Can do.

  A screw other than the bolt 61a may be used as the fixing means 61. The adjusting member 60 may be provided on the connecting link 44.

  FIG. 24 illustrates a seventh embodiment of the present invention. In this embodiment, the entire pantograph mechanism 13 of the door body 4 is extended and contracted integrally. The door body 4 includes a plurality of vertical frames 7 arranged at substantially equal intervals in the tilt direction, and a pantograph mechanism 13 that is extendable in the tilt direction and connects the vertical frames 7. Among the individual vertical frames 7, the intermediate vertical frame 7 having the caster wheels 25 is defined as a divided vertical frame 72, and the inclined vertical links 8 and 9 of the pantograph mechanism 13 and the angle regulating member are fixed to the divided vertical frame 72 by the fixed pivot 12. 23 is pivotally supported.

  The front and rear inclined links 8 and 9 pivotally supported on the section vertical frame 72 by the fixed pivot 12 are integrated on the left and right sides in the same manner as the front and rear inclined links 8 and 9 pivotally supported by the other vertical frame 7 by the fixed pivot 12. It has a structure that does not refract at the portion of the fixed pivot 12. The fixed pivot 12 and the movable pivot 30 corresponding to the upper and lower sides are pivotally attached to the front and rear inclined links 8 and 9, and pass through a guide portion 23 a such as a long hole formed in the angle regulating member 23 in the front-rear direction. It is guided by the portion 23a so as to be movable up and down. Other configurations are the same as those of the first and other embodiments.

  In this telescopic gate, the upper and lower pantograph mechanisms 13 of the door body 4 are integrally expanded and contracted in the inclination direction to open and close the doorway 2. Even in the case of such a configuration, it can be implemented in the same manner as in the first embodiment.

  25 to 28 illustrate an eighth embodiment of the present invention. The door body 4 of the telescopic gate has an upper and lower integrated pantograph mechanism 13 configured to be extendable and contractible in the tilt direction, and a plurality of vertical frames 7 in the tilt direction connected to the pantograph mechanism 13 vertically. An angle regulating member 23 that regulates the inclination angle of the pantograph mechanism 13 is fixed to each vertical frame 7 so that the angle can be adjusted. The door body 4 includes a plurality of vertical frames 7 and a pantograph mechanism 13 that connects the vertical frames 7, and the first door body 14 and the first door body 14 that can be separately expanded and contracted in the inclination direction on the left and right sides of the divided vertical frame 72. It is divided into two door bodies 15.

  An angle restricting member 23 is pivotally attached to each vertical frame 7 including the divided vertical frame 72 by a fixed pivot 12 that pivotally supports an upper and lower crossing portion 10 b of the pantograph mechanism 13. Each angle regulating member 23 is fixed to the vertical frame 7 at a predetermined inclination angle by a fixed link 63 provided detachably across the angle regulating member 23 and the vertical frame 7. There are a plurality of types of fixed links 63 having different lengths for each predetermined inclination angle, and the inclination angle of the angle regulating member 23 can be adjusted by changing the length of the fixed link 63.

  The angle restricting members 23 are disposed on both front and rear sides of the pantograph mechanism 13, and the front and rear angle restricting members 23 are integrally connected to the front and rear by connecting members 64a and 64b, and are fixed at a substantially central position in the up and down direction. 12 is pivotally supported. Each angle regulating member 23 has a guide portion 23a on the inner side facing each other. In the angle restricting members 23 on the side of each vertical frame 7 other than the section vertical frame 72, the movable pivot 30 of the inclined links 8 and 9 is guided by the front and rear angle restricting members 23, and in the angle restricting member 23 on the section vertical frame 72 side. The movable pivots 30 of the inclined links 8 and 9 are separately guided by the front and rear angle regulating members 23.

  The fixed link 63 has engaging portions 63a and 63b, such as recessed shapes, at both ends in the longitudinal direction, and the connecting members 7a and 64b of the vertical frame 7 and the angle regulating member 23 via the engaging portions 63a and 63b. It is detachably connected to. In the fixed link 63 on the vertical frame 71 and the section vertical frame 72 side, the upper engaging portion 63a is related to the connecting member 64b of the angle restricting member 23, and the lower engaging portion 63a is connected to the connecting member 7a of the vertical frame 7. Removably engaged.

  The connecting members 7a and 64b have a connecting shaft in the front-rear direction, a width determining member fitted on the connecting shaft, and the like, with the engaging portions 63a and 63b of the fixed link 63 engaged with the connecting shaft. It is fixed by sandwiching it in the front-rear direction with a deciding material. Other configurations are the same as those of the first and other embodiments.

  In the case of this embodiment, the angle of the angle restricting member 23 is adjusted in advance using the fixed link 63 having a length corresponding to the inclination angle of the inclined ground 1, and then the door body 4 is disposed between the left and right columns 3. . Then, if the end frame 5 on the moving end side of the first door body 14 is operated to the lower side in a state where the section vertical frame 72 is locked to the ground by the dropping rod 27a, the movable pivots 30 on both the upper and lower sides become the angle regulating member 23. Accordingly, the first door body 14 contracts along the slope 1 and half of the doorway 2 can be opened. Further, if the end frame 5 on the moving end side is operated in the reverse direction, the first door body 14 is conversely extended.

  The door body 4 has an angle restricting member 23 corresponding to each vertical frame 7, and the angle restricting member 23 is in a fixed state via the fixed pivot 12 and the fixed link 63. 12 and the movable pivot 30 that moves up and down on the angle regulating member 23 can maintain each vertical frame 7 in a substantially vertical state.

  When the door body 4 is expanded and contracted, for example, the movable pivot 30 of the inclined links 8 and 9 on the first door body 14 side is separated from the movable pivot 30 of the inclined links 8 and 9 on the second door body 15 side on the section vertical frame 72 side. Although it moves up and down along the angle restricting member 23, the movable pivot 30 is guided by the angle restricting member 23 on both the front and rear sides, so that the first door body 14 can be smoothly expanded and contracted. Also, on the other vertical frame 7 side excluding the vertical frame 71 and the divided vertical frame 72, the upper and lower movable pivots 30 penetrate the angle regulating member 23, so that the first door body 14 is compared with the case of guiding on one side. Can be expanded and contracted smoothly.

  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, the door body 4 is a non-interlocking type in which the door bodies 14 to 16 are separately expanded and contracted in the inclination direction divided through the section vertical frame 72, and pantographs on both sides of the section vertical frame 72. Although the interlocking type in which the mechanism 13 is integrally expanded and contracted is illustrated, a non-interlocking type and an interlocking type adopting other configurations can be similarly implemented.

  In the first embodiment, the connecting link 44 that connects the upper and lower angle regulating members 23 so as to be interlocked is pivotally supported by the vertical frame 7 and the section vertical frame 72 by the pivot 42. As long as the upper and lower angle regulating members 23 can be maintained in a fixed state, the connecting link 44 may not be pivotally supported by the vertical frame 71 and the section vertical frame 72 by the pivot. The door body 4 may be of a single-open type in which the suspension end frame is connected to the suspension support column via a hinge, etc., and the door end frame is moved to the door support column. A double swing type may be used.

  When each of the door bodies 14 to 16 or the door main body 4 is in the contracted state, the width determining material disposed at the intersection between the vertical frames 7 and corresponding to one side of the angle restricting member 23 comes into contact with the angle restricting member 23. However, the opposing surfaces of the adjacent vertical frames 7 may be in contact with each other.

  As the upper and lower pantograph mechanisms 13, the inclined links 8 and 9 are arranged in substantially the same pattern, but may be arranged in different patterns. In addition, when the angle regulating member 23 is pivotally attached to the vertical frame 71 and the section vertical frame 72, the fixed pivot 12 is generally used. However, the angle regulating member 23 is pivotally pivoted by another pivot in the vicinity of the fixed pivot 12. Also good.

  When the interlocking / fixing means 24 having the connection link 44 pivotally supported by the pivot 42 on the vertical frame 71 and the section vertical frame 72 is adopted, in the embodiment, the connection portion 48 of the angle regulating member 23 has an adjustment hole 48a such as a long hole. However, an adjustment hole 48a may be provided on the connecting link 44 side. The interlocking / fixing means 24 may be configured to fix the angle regulating member 23 at every predetermined angle. In that case, the interlocking / fixing means 24 may be provided with a fixing means such as a pin other than the fastening type.

  When the pantograph mechanism 13 integrated with the upper and lower sides is adopted, the number of the intersecting portions of the inclined links 8 and 9 of the pantograph mechanism 13 may be at least two in pairs with the fixed pivot 12, but there should be three or more. Is desirable. When there is an angle restricting member 23 corresponding to each pantograph mechanism 13, the angle restricting member 23 may be provided so that the angle can be adjusted for each of the upper and lower pantograph mechanisms 13. In the case of the door body 4 that is symmetrical with a specific inclination angle, the angle regulating member 23 may be fixedly provided corresponding to the inclination angle. Therefore, the angle regulating member 23 does not need to be adjustable in angle.

4 Door body 7, 71 Vertical frame 8, 9 Inclined link 10, 11, 28, 29 Intersection 12 Fixed pivot 13 Pantograph mechanism 14-16 First to third door bodies 17, 18 Front and rear longitudinal bars 23 Angle regulating member 24 Interlocking -Fixing means 30 Movable pivot 38 Sliding body 39 Restricting body 44 Connection link 45 Fastening means 51 Connection shaft 61 Fixed link 72 Sectional vertical frame

Claims (6)

A plurality of vertical frames arranged at substantially equal intervals in the tilt direction;
A pantograph mechanism which is arranged to be extendable in an inclined direction and in which any one of a plurality of upper and lower intersections is pivotally attached to the vertical frame by a fixed pivot;
An inclination of the pantograph mechanism is provided in the vertical frame so that the angle of the pantograph mechanism can be adjusted around the fixed pivot, and the movable pivots of the other intersecting parts of the pantograph mechanism are vertically movable. In the telescopic gate with an angle regulating member that regulates the angle,
One of the middle of the plurality of vertical frames as a division vertical frame,
The pantograph mechanism on both the left and right sides of the divided vertical frame is configured to be separately extendable ,
The angle restricting member is disposed between the inclined links before and after the pantograph mechanism,
A telescopic gate having a guide portion on each of the front and rear sides of the angle regulating member for guiding the movable pivot shafts of the front and rear inclined links in a cantilevered manner so that the movable pivot can be moved up and down separately . The angle restricting member is provided on the vertical frame and the section vertical frame at both ends in the inclination direction,
Wherein among the tilt link pantograph mechanism, are arranged substantially linearly in the lateral through the fixed pivot axis of the segment vertical frame, we constitute the foldably the tilt links of each pantograph mechanism該枢axis around,
The telescopic gate according to claim 1, wherein the movable pivots of the inclined links on both sides of the section vertical frame are separately provided on the angle restricting member so as to be vertically movable. A plurality of pantograph mechanisms are provided in the vertical direction,
The telescopic gate according to claim 1 or 2, wherein the angle restricting member is provided for each of the pantograph mechanisms in the vertical frame at the both ends and the divided vertical frame. Telescopic gates according to any one of claims 1 to 3, and the fixed pivot is located on both sides before and after is equal to or that have a vertical bar before and after the支架before and after the vertical frame is the pantograph mechanism. There are two upper and lower pantograph mechanisms,
The telescopic gate according to any one of claims 1 to 4, further comprising a connecting link that connects the angle restricting members of the pantograph mechanisms . The expansion and contraction according to any one of claims 1 to 5, wherein the angle regulation member is adjustable in angle between a state substantially parallel to the vertical frame and a state inclined with respect to the vertical frame. Gate.

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