JP2005336816A - Expansion gate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an expansion gate which enables all support members as component members of the gate to be vertically installed without reference to an angle of inclination of an installation surface, even if the gate is installed not only on a horizontal plain land but also on a slope sloping in the opening/closing direction of the gate, which enables an opening/closing motion which maintaining the vertical attitudes of the support members, and which accomplishes the above function by using a simple constitution. <P>SOLUTION: This expansion gate is equipped with a plurality of vertically-directed parallel support members 1-5, and pantagraph-like crosspiece members 11a-14e which are laid in the state of being pivotally mounted among the respective support members 1-5. The expansion gate is opened/closed by the operation of making the crosspiece members 11a-14e expanded/contracted and deformed so that the respective support members 1-5 can be separated from or brought closer to each other. Length changing mechanisms Lm, which enable the length to be changed on the coaxial places of the crosspiece member 11a-14e, are provided in the intermediate parts of the crosspieces 11a-14e. Thus, when the gate is installed on the slope, the lengths of the crosspiece members 11a-14e are changed in such a manner as to correspond to the angle of inclination, so that the support members 1-5 can be kept in the vertical attitudes and so that the opening/closing operation can be performed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  Even if the present invention is installed on slopes having various inclination angles, the vertical members are held in the vertical posture according to the respective inclination angles, and the vertical members are held in the vertical posture. The present invention relates to a telescopic gate that can be opened and closed as it is.

  A plurality of support members are connected to each other by ledge tongs or pantograph type parallel links.When the door is closed, the parallel link is deformed to the extending side to widen the entire door, and when the door is opened, the parallel link is Telescopic gates that are operated so as to be deformed to contract and shrink the entire door are installed and used at entrances and the like of houses and various facilities, and are widely known.

The above-mentioned telescopic gates are not only used for entrances and exits of houses and various facilities where the ground in the opening and closing direction of the gate where the doors are installed are arranged horizontally in principle, but also at the construction sites and the like surrounded by temporary enclosures. However, in the case of a construction site, the entrance to the work area is sometimes set on an inclined land, and when a telescopic gate is installed on such an inclined land, the column members (vertical (Ii) is installed along the inclination angle of the slope, there is a problem that the gate is difficult to smoothly open and close, and the whole gate appears to be inclined, so that the appearance is not good. In addition, since various slopes have different slope angles at various construction sites, a function that can cope with the difference in slope angles is necessary. In view of such a point, Patent Documents 1 to 4 propose a telescopic gate for an inclined land. However, the proposed telescopic gates for sloping terrain are provided with a separate member for absorbing deformation on the sloping ground of the eaves member, or using an independent structure for absorbing deformation, so that the extra members are among the members of the gate. In addition to being unsatisfactory, the link structure is also complicated.
JP 2001-152769 A Japanese Patent Laid-Open No. 10-153071 Japanese Patent Laid-Open No. 9-209671 JP-A-10-131648

  Therefore, in the present invention, in view of the above points, not only when installed on a level flat ground, but also when installed on an inclined ground with an inclination in the opening and closing direction of the gate, all support members that are constituent members of the gate are installed. It is an object of the present invention to provide a telescopic gate that can be installed in a vertical direction regardless of the inclination angle of the installation surface, can be opened and closed with the vertical posture, and has the above function with a simple configuration. .

  The structure of the telescopic gate of the present invention, which has been made for the purpose of solving the above-mentioned problems, comprises a plurality of vertical parallel support members, and a pantograph-shaped eaves member that is pivotally mounted between the support members. A telescopic gate that is opened and closed by an operation in which the pantograph-shaped eaves member is stretched and deformed to move apart or approach each support member, and the length of the eaves member is coaxial with the length of the eaves member By providing a length changing mechanism that can change the length, when a gate is installed on an inclined ground, the length of the eaves member is changed corresponding to the inclination angle to hold the column member in a vertical posture and open and close It is characterized by doing so.

  In the telescopic gate according to the present invention, the length changing mechanism is separated by cutting or the like at the intermediate part of each slab member, and between the severing parts, straddling the part and between the slab members on the same axis. It is desirable that a sheath member that slides relative to each other is inserted. Further, the intermediate cutting portion of each flange member is formed near one end portion in the length direction of each flange member, preferably near both end portions. Therefore, the length changing mechanism is provided at both ends or one end of each flange member. Providing in the vicinity of the pivoting portion and in the vicinity of the pivoting portion between both ends or one end of each flange member and the column member is preferable for smoothing the length changing operation.

  A telescopic gate in which a plurality of parallel strut members (vertical rods) are connected to each other by a pantograph-shaped rod member, and the length member has a length changing mechanism capable of changing the length of the rod member at an intermediate portion thereof. When the support member is installed on a sloping ground while maintaining a vertical posture, the length is changed on the same axis of the saddle member according to the slanting angle. In addition, it is possible to change the length of each of the eaves members, and thereby it is possible to obtain an extendable gate that can be opened and closed while all the support members are always held in a vertical posture. Further, the length of the collar member is changed by extending or contracting the length changing mechanism on the same axis of the collar member, so that an extra link does not protrude and the link structure is not complicated.

  Next, an example of an embodiment of the telescopic gate of the present invention will be described with reference to the drawings. 1 is a front view of an example in which an example of the telescopic gate of the present invention is installed on a sloping ground, FIG. 2 is an enlarged front view of the main part extracted from the gate of FIG. 1, and FIG. 3 is an example of a mechanism for changing the length of a gutter member. 4 is a cross-sectional view of the length changing mechanism of FIG. 3, FIG. 5 is a front view of another example of the length changing mechanism, and FIG. 6 is a cross-sectional view of the length changing mechanism of FIG. .

  FIG. 1 is a front view of an example in which the telescopic gate FG of the present invention is installed on an inclined ground Sg. In this figure, 1 to 5 are five vertical rods which are parallel support members, and casters 6, 7 and 8 are attached to the lower ends of both outer ends and intermediate vertical rods 1, 5 and 3 among them. In addition, support leg bars 9 and 10 are provided at the lower ends of the remaining vertical rods 2 and 4. Here, the casters 6 to 8 and the support leg bars 9 and 10 are provided for preventing the drooping of the whole door due to its own weight and for supporting the door during the opening / closing operation, but the support leg bars 9 and 10 are not provided. In some cases. In addition, the vertical gutter which installs the casters 6-8 and the support bar 9 and 10 is not restricted to the said example. This is because the number of vertical gutters forming the gate is arbitrary as 5 or more or 5 or less in the above example.

  The vertical rods 1 to 5 as the above-mentioned support members are connected to each other so as to be separated / approached by the flange members that act as pantograph links in a state of being appropriately spaced apart from each other and arranged in parallel. That is, in the embodiment shown in FIG. 1, the saddle member has four saddle members 11a, 11b, 11c, 11d, eaves members 12a, 12b, 12c, 12d installed on the upper part of the adjacent eaves 4-1 on the left in order from the lower part of eaves 5-2, and the eaves members 11a-11d As well as the flange members 13a, 13b, 13c installed in parallel between the flange members 12a-12d and the flange members 13d, 13e at both ends parallel to these flange members 13a-13c, The members 14a, 14b, and 14c and the flange members 14d and 14e at both ends parallel to the flange members 14a to 14c are connected to the vertical rods 1 to 5 in a pantograph shape to expand and contract the gate. A functional part is formed.

  In each of the above-described saddle members, the saddle members 11a to 11d and 12a to 12d are respectively connected to a pin pivot fP (hereinafter also referred to as a pivot point fP) at the intersection of the vertical rods 1 to 5 and the intersection of the saddle members. On the other hand, at the intersection with the upper part of the vertical shafts 1 to 5, it is slidably pivoted sP (hereinafter also referred to as pivot point sP) so as to be slidable along the vertical shaft (coaxially). It is formed to follow the expansion and contraction of the gate. Accordingly, the positions of the pin pivot attachment fP and the slide pivot attachment sP in the flange members 11a to 11d and 12a to 12d can be reversed from the above example.

  On the other hand, the flange members 13a to 13e and 14a to 14e are pin-fitted at the intersections of the vertical rods 1 to 5 and the intersection points of the flange members.

  The configurations of the vertical members 1 to 5 to the vertical members 11a to 14e and the pivot points sP and fP are the same as those of a conventionally known telescopic gate. When the installation surface Sg is inclined, the vertical fences 1 to 5 are inclined to stand by the inclination angle, so that the appearance is not excellent, and the opening and closing operation is difficult to be smooth. As described above.

  Therefore, in the gate of the present invention, in order to cope with the above-mentioned problem, the upper and lower pivot points sP and fP near the ends in the longitudinal direction of each of the eaves members 11a to 11d and 12a to 12d, that is, the vertical eaves 1 to 5 And the vicinity of the upper and lower pivot points fP of the flange members 13a to 13e and 14a to 14e (however, the flange members 14e and 13d are the vicinity of the pivot point fP of the vertical rods 1 and 5 and the flange member 13a. When the length change mechanism Lm illustrated in FIGS. 3 to 6 is provided in the vicinity of the pivot point fP of the heel member 14c and the gate of the present invention is installed on the sloping ground as illustrated in FIG. Since the vertical rods 1 to 5 are installed in the vertical direction, and the length change generated in each of the flange members 11a to 14e is absorbed thereby, the length changing mechanism Lm will be described with reference to FIGS. And with reference to FIG.

  Each of the flange members 11a to 14e is usually formed of a pipe material or a bar material made of metal such as aluminum or plastic. In the embodiment of FIG. 1, the eaves members 11a to 14e of the telescopic gate of the present invention cut near the length direction except for 13e and 14d, and the eaves members 13e and 14d cut near the upper end, By attaching the outer-type sheath member 15 or the inner-type sheath member 16 to the cut portion, the cut portion of each flange member is connected to be stretchable on the same axis, thereby forming the length changing mechanism Lm. Although the example of the length changing mechanism Lm shown in FIGS. 3 to 6 is shown as an example applied to the eaves member 11a, the same applies to the other eaves members 11b.

  The outer sheath member 15 shown in FIGS. 3 and 4 is formed by a mating cylindrical member 15a that is externally attached to the flange members 11a ′ and 11a ″ separated by cutting, and one end portion of the member 15a is separated. The flange member 11a ′ is fixed 15b with a bolt or the like, and the other flange member 11a ″ is provided with a guide pin 15c. By inserting this pin 15c into a guide elongated hole 15d formed in the cylindrical member 15a, the elongated hole 15d The entire length of the eaves member 11a can be freely changed within the range of the length.

  The inner-type sheath member 16 shown in FIGS. 5 and 6 is formed by a matching cylindrical member 16a inserted into the flange members 11a ′ and 11a ″ separated by cutting, and one end side of the member 16a is separated. The flange member 11a 'is fixed with a bonding agent 16b, and the other flange member 11a "is provided with a guide pin 16c. By inserting this pin 16c into a guide elongated hole 16d formed in the cylindrical member 16a, a long hole is obtained. The entire length of the flange member 11a can be freely changed within the range of the length of 16d. In addition, when each collar member 11a-14e is a rod, the length change mechanism Lm provided to each collar member is an outer type.

  From the position where the telescopic gate FG of the present invention is installed on the horizontal ground Hg shown by the phantom line in FIG. If the vertical rods 1 to 5 are installed vertically, the flange members 12a to 12d and 14a to 14e provided to be inclined to the left side are distances between pivot points at both ends. While the flange members 11a to 11d and 13a to 13e, which are inclined to the right, are enlarged, the distance between the pivot points at both ends is reduced. Incidentally, in the known telescopic gate, the length of the used eaves member is invariable, so it cannot cope with the change in the distance, and therefore, the vertical eave (post member) stands perpendicular to the inclined surface ( (Non-vertical) so it looks tilted.

  In the telescopic gate of the present invention, each of the flange members 12a to 12d and 14a to 14e is expanded between the pivot points, and each of the flange members 11a to 11d and 13a to 13e is contracted between the pivot points. Since the length changing mechanism Lm provided by inserting and contracting is absorbed by expanding and contracting on the same axis of each rod member, the vertical rods 1 to 5 can stand in a vertical posture on the slope Sg, and the vertical posture is always maintained. Will be able to.

  The present invention is not limited to the illustrated example of the pantograph form, and can be applied to a telescopic gate having a telescopic function by any form of pantograph mechanism. Further, the present invention can be applied even when the pantograph mechanism using the eaves member and the vertical eaves (support members) have a multi-layer (multiple in front and rear) structure. Furthermore, the length changing mechanism of the eaves member is not limited to the one shown in the embodiment, and any structure that can cope with the change in the distance between the pivot points at both ends of the eaves member that changes by maintaining the angle of the vertical eaves vertically. Good.

  The present invention is as described above, and the length change mechanism that expands and contracts by sliding on the same axis is provided to the eaves member of the telescopic gate that employs the pantograph mechanism as the eaves member. Even if the telescopic gate of the telescopic gate is installed vertically regardless of the inclination angle, the length change caused by it can be absorbed. Therefore, the vertical structure of the gate is always vertical regardless of whether it is flat or inclined. And can be opened and closed in that position. In addition, since the length changing mechanism is concentric with the collar member and operates on the same axis, the extra link does not protrude from the collar member even when installed on an inclined ground, so that the appearance can be improved. It is good.

The front view of the example which installed one example of this invention expansion-contraction gate in the slope. The front view which extracted and extracted the principal part in the gate of FIG. The front view which shows an example of the length change mechanism of a collar member. Sectional drawing of the length change mechanism of FIG. The front view which shows another example of a length change mechanism. Sectional drawing of the length change mechanism of FIG.

Explanation of symbols

1-5 downspout (post member)
6-8 casters 9,10 support bar
11a to 11d, 13a to 13e
12a to 12d, 14a to 14e Left slanted saddle member
15 Outer sheath member
16 Inner sheath member

Claims (4)

  A plurality of vertical parallel support members, and a pantograph-shaped eaves member that is pivotally mounted between the support members, and the pantograph-like eaves member expands and contracts to mutually support the support members. In the telescopic gate that is opened and closed by an action that moves away from or close to the door, the gate is installed on an inclined ground by providing a length changing mechanism that can change the length of the hook member on the same axis in the middle portion of the hook member. The telescopic gate is characterized in that, in response to the inclination angle, the length of the eave member is changed to hold the column member in a vertical posture and to open and close.   The length changing mechanism cuts an intermediate portion of each heel member, and inserts a sheath member that slides relative to the heel member on the same axis between the detachable portions across the cut portions. The telescopic gate as claimed in claim 1.   The length change mechanism of each saddle member is the telescopic gate of claim 1 or 2 provided in the vicinity of the pivot part between the saddle members and in the vicinity of the pivot part between each saddle member and the support member. The telescopic gate according to claim 1 or 2, wherein the length changing mechanism of each saddle member is provided near both ends in the length direction of each saddle member.

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