JP2012202028A - Expansion gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an expansion gate which protects pin shaft ends from damage caused by abutment with other objects and from rainwater so as to prevent rust generation, resulting in improved durability and good appearance with thin thickness and light weight.SOLUTION: Intersection parts C1 and C4 which are connected to the front and rear vertical frames 8a and 8b of a vertical lattice 8 of a pantograph mechanism 5 are pivotally fitted by a pin shaft 4a. The pin shaft 4a having female threads 32 at both front and rear ends are pivotally fitted through the intersection part of diagonally installed members 2 and 3. A screw 35 is screwed into each of the female threads at the front and rear ends of the pin shaft 4a facing inside the front and rear vertical frames 8a and 8b of the vertical lattice 8 through a concave groove 18 formed on the outer surface side of each the vertical lattice 8 in the vertical direction. The head 35 of the screw 35 is covered with a vertical lattice cover 22 which is fitted in the concave groove 18.

Description

  The present invention relates to a telescopic gate in which a door body is expanded and contracted by a pantograph mechanism.

  As an example of this type of telescopic gate, for example, as shown in FIG. 17, a plurality of slant members (slope bars) 60 inclined upward from the suspension base side and slant members (slope bars) 61 slanted downward from the suspension base side. , A telescopic pantograph mechanism 63 pivotally attached to the pin shaft 62, and a telescopic pantograph mechanism 63 disposed vertically with respect to the pantograph mechanism 63 and pivotally connected to both ends of the pin shaft 62. There is a door main body 65 having a plurality of front and rear vertical lattices (vertical bars) 64, 64 in the direction, and a suspension base side end of the door main body 65 is connected to a fixing member such as a suspension base pillar ( For example, see Patent Document 1.)

JP-A-9-209671 (FIG. 1)

  However, in the telescopic gate having the above-described configuration, the crossing positions of the slant members 60 and 61 and the both end portions 62a of the metal pin shaft 62 pivotally attached to the front and rear vertical lattices 64 and 64 are the outer surfaces of the front and rear vertical lattices 64 and 64, respectively. Therefore, it is easy for other objects to come into contact with or be hooked on the protruding end 62a, and there is a risk that the end 62a may be damaged or scratched on other objects. In addition, there was a problem that rust was generated by rainwater and the appearance also deteriorated. Further, the door body 65 is thin and compact in the front-and-rear direction and is light in weight by the amount of protrusion that the both end portions 62a of each of the pin shafts 62 protrude from the front and rear vertical lattices 64 and 64.

  The present invention has been made in order to solve such a problem, and an object of the present invention is to intersect the front and rear vertical frames of the vertical lattice in the telescopic gate provided with the pantograph mechanism as described above. Protection from damage due to contact with other objects at the end of the pin shaft, and protection from rainwater Accordingly, it is an object of the present invention to provide a telescopic gate capable of preventing the occurrence of rust and improving the durability, further improving the appearance, and further reducing the thickness, size and weight.

In order to facilitate understanding of the contents of the present invention as described in claim 1, the present invention is described with reference to the reference numerals attached to FIGS. A pantograph that crosses the slanted member (2) and the slanted member (3) inclined downward from the suspension side, and is pivotally attached to the intersecting part by pin shafts (4a, 4b, 4c, 4d). Of the pin shafts (4a, 4b, 4c, 4d) which are arranged in the vertical direction with respect to the mechanism (5, 6) and pivotally attached to the pantograph mechanism, at both ends of a predetermined pin shaft (4a) A door main body (9) provided with a plurality of vertical lattices (8) in a telescopic direction, which is pivotally connected, is formed, and a suspension base side end of the door main body (9) is a suspension base pillar (10), etc. The telescopic gate connected to the fixed member is characterized in that it is configured as follows.
The vertical lattice (8) has a pair of front and rear vertical frames (8a and 8b), and a concave groove (18) is formed in the vertical direction on each outer surface side of the front and rear vertical frames (8a and 8b). ,
The intersecting portions (C1, C4) connected to the front and rear vertical frames (8a, 8b) of the vertical lattice (8) are pivotally attached by a pin shaft (4a), and the pin shaft (4a) is connected to the oblique member (2, 3). ) Penetrating through the intersection of the pins, and the front and rear ends of the pin shaft (4a) face the recessed groove (18) and are covered with the vertical lattice cover (22) fitted in the recessed groove (18). The configuration is adopted.

  According to the telescopic gate having such a configuration, the front and rear end portions of the pin shaft (4a) are not recessed from the front and rear vertical frames (8a and 8b) so as to protrude from the front and rear vertical frames (8a and 8b). By facing the groove (18), contact with other objects can be avoided and safety can be ensured. Further, the front and rear end portions of the pin shaft (4a) are covered with the vertical lattice cover (22), so that they can be protected from rain water to prevent the occurrence of rust, and the appearance can be improved.

In order to make it easier to understand the contents of the present invention as described in claim 2, the present invention is described with reference to the reference numerals attached to FIGS. A pantograph that crosses the slanted member (2) and the slanted member (3) inclined downward from the suspension side, and is pivotally attached to the intersecting part by pin shafts (4a, 4b, 4c, 4d). Of the pin shafts (4a, 4b, 4c, 4d) which are arranged in the vertical direction with respect to the mechanism (5, 6) and pivotally attached to the pantograph mechanism, at both ends of a predetermined pin shaft (4a) A door main body (9) provided with a plurality of vertical lattices (8) in a telescopic direction, which is pivotally connected, is formed, and a suspension base side end of the door main body (9) is a suspension base pillar (10), etc. The telescopic gate connected to the fixed member is characterized in that it is configured as follows.
The intersecting portions (C3, C5) of only the oblique members (2, 3) are pivotally attached to the pin shafts (4c, 4d), and the pin shafts (4c, 4d) are used for fixing the resin at one end thereof. The bush (38) is fixed, and the pin shaft (4c, 4d) fits and fixes the fixing bush (38) in the hole (40) provided in one of the oblique members (2), The other end of the inclined member (2, 3) is inserted into the intersection of the inclined members (2, 3) and protrudes into the other inclined member (3), and the protruding other end of the pin shaft (4c, 4d) The fixing bush (43) having a recess (43a) is fitted and fixed in a hole (42) provided in the slanting member (3), and is exposed to the recess 43a. The recess (43a The other end of the projecting portion facing inside is covered with a cap (47) fitted in the recess (43a).

According to the telescopic gate having such a configuration, the protruding end portions of the pin shafts (4c, 4d) of the intersecting portions (C3, C5) of only the oblique members (2, 3) do not protrude outside. In addition, by facing the recess (43a) of the fixing bush (43), contact with other objects can be avoided and safety can be secured, and the front and rear oblique members (2, 3) can be secured when the door is opened. The door main body (9) can be thinned in the front-rear direction by being compactly accommodated between the front and rear vertical frames (8a, 8b) of the vertical lattice (8).
In addition, by covering the other end of the projecting pin shaft (4c, 4d) with the cap (47), it can be protected from rain water to prevent rust, improve durability, and improve the appearance. Can do.
In the present invention, the “intersection only between the oblique members” refers to “the connecting portion between the oblique members”, and even when the vertical lattice is located, only the oblique members are located. Are connected, it corresponds to the “intersection of only the oblique members” here.

  According to the telescopic gate of the present invention, the pin shaft that pivots the intersection connected to the longitudinal frame of the vertical lattice and the other end of the pin shaft that pivots the intersection of only the slanting members It is advantageous to protect against damage due to contact, protect against rain water, prevent rust, improve durability, improve the appearance, and reduce the thickness and weight.

It is a whole front view which shows the expansion | extension state of the expansion-contraction gate of one Example of this invention. It is a front view which shows the slanting material of the pantograph mechanism of the upper stage of the expansion-contraction gate door in a partially broken state. It is a vertical side view provided with various pin shafts in the slanting member of FIG. It is a front view which shows the slanting material of the pantograph mechanism of the lower stage of the expansion-contraction gate door in a partially broken state. It is a vertical side view provided with various pin shafts in the slanting member of FIG. It is sectional drawing in the cross | intersection part C1 in FIG. It is sectional drawing in the cross | intersection part C2 in FIG. It is sectional drawing in the crossing part C3 in FIG. It is sectional drawing in the cross | intersection part C4 in FIG. It is sectional drawing in the cross | intersection part C5 in FIG. The upper and lower end caps used for the telescopic gate are shown, wherein (a) is a plan view, (b) is a front view, (c) is a side view, and (d) is a bottom view. The other lower end caps used for the telescopic gate are shown, in which (a) is a plan view, (b) is a front view, (c) is a side view, and (d) is a bottom view. The intersection pin axis used for the telescopic gate is shown, wherein (a) is a plan view, (b) is a cross-sectional view taken along line AA in (a), and (c) is a bottom view. The bush for fixation used for the expansion-contraction gate is shown, Comprising: (a) is a top view, (b) is a BB sectional drawing in (a), (c) is a bottom view. The cap of the bush for fixation used for the expansion-contraction gate is shown, Comprising: (a) is a top view, (b) is CC sectional view taken on the line in (a), (c) is a bottom view. It is the whole front view which shows the expansion | extension state of the expansion-contraction gate in a zero gravity state. It is a whole front view which shows the expansion | extension state of the expansion-contraction gate of a prior art example.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the telescopic gate 1 according to one embodiment of the present invention includes a plurality of slant members 2 inclined upward (upward to the right in the drawing) and lower suspension side (in the drawing). The slanted frame member 3 that is inclined to the right is crossed, and the intersection is pivotally attached by various pin shafts (fixed type pin shaft 4a, moving type pin shaft 4b, intersection pin shafts 4c and 4d described later). A non-pantograph mechanism zone having no pantograph mechanism formed in an intermediate portion between the upper and lower pantograph mechanisms 5 and 6 and the upper and lower pantograph mechanisms 5 and 6 and the upper and lower pantograph mechanisms 5, 6 7, the upper pantograph mechanism 5, the non-pantograph mechanism zone 7, and the lower pantograph mechanism 6 are arranged in the vertical direction and are connected to the pantograph mechanisms 5 and 6 at a predetermined intersection in the intersection group. It has been a plurality of vertical lattice 8 in stretching direction to form a door body 9 having a couples the Tsumoto end of the door body 9 to the fixing member such as Tsumotohashira 10.

The door main body 9 is disposed between a hanging pillar 10 and a door-to-door pillar 11 that are erected on the ground G in a mutually opposing manner with a spacing left and right. The telescopic door of the present invention can be suitably used for a relatively narrow frontage in which the distance between the inner end surface of the suspension column 10 and the inner end surface of the door stopper column 11 is about 900 to 1700 mm.
A rotary column 12 is provided at the suspension side end of the door body 9, and the rotation column 12 is attached to the suspension column 10 via a hinge 13 so as to be rotatable by 180 ° in the horizontal direction.
On the other hand, a movable pillar 14 is provided at the door end side end of the door body 9, and a lock 15 is provided on the movable pillar 14, and the movable pillar 14 can be locked and unlocked to the door stopper 11 by the lock 15. Yes. On both front and rear sides of the movable column 14, handles 16 for extending and retracting the door main body 9 are provided. In addition, a drop rod device 17 is provided on the movable column 14, and when the door main body 9 is fully closed, a lower end portion of the drop rod 17a is fitted into a hole (not shown) drilled in the ground G. The expansion and contraction operation of the door body 9 is prevented.

  Between the rotating column 12 and the moving column 14, there are two upper and lower pantograph mechanisms 5 and 6 that can be expanded and contracted. In order to reduce the weight of the door body 9 and facilitate the opening / closing operation, a non-pantograph mechanism zone 7 having no pantograph mechanism is provided in the middle in the vertical direction between the upper pantograph mechanism 5 and the lower pantograph mechanism 6. Forming. Each of the pantograph mechanisms 5 and 6 includes a plurality of slant members 2 inclined upward (upward to the right in the figure) and slant members 3 inclined to the bottom of the suspension (down to the right in the figure), It is composed of a plurality of vertical lattices 8 in the expansion / contraction direction. The vertical lattice 8 includes a front vertical frame 8a and a rear vertical frame 8b, as shown in the cross-sectional views of FIGS. 6, 7, and 9, and the front vertical frame 8a and the rear vertical frame 8b are respectively web 19 and The web 19 is formed in a cross-sectional lip groove shape having a pair of left and right flanges 20 connected to the left and right ends of the web 19 and a lip 21 attached to each of the left and right flanges 20. A concave groove 18 having a cross-sectional lip groove shape having a pair of left and right lips 18a, 18a is formed on the outer surface side of the web 19 in the vertical direction. In the concave groove 18 of the web 19, a vertical lattice cover 22 having a π-shaped cross section having a pair of left and right groove portions 22a, 22a is slidable in a vertical direction on the pair of left and right groove portions 22a, 22a in a pair of left and right lips 18a, 18a. The concave grooves 18 are closed so that the vertical lattice cover 22 is substantially flush with the outer surfaces of the front and rear vertical frames 8a and 8b.

As shown in FIGS. 6 to 10, the slanting member 2 rising from the suspension side and the slanting member 3 descending from the suspension side are respectively made of aluminum first and second opposite sides ( A pipe having a quadrilateral cross section (in the illustrated example, a rectangular cross section) having long sides 23, 23, 24, 24 and third and fourth sides (short sides in the illustrated example) 25, 25, 26, 26. The ribs 27 and 28 are formed on the inner surfaces of the first and second side portions 23 and 24 of the oblique members 2 and 3 along the longitudinal direction.
In the extension operation of the door body 9, the corners of the upper and lower ends of the oblique members 2 and 3 are not protruded from the width direction of the vertical lattice 8 to improve the appearance, and the door body 9 is compactly folded. 2 and 4, as shown in FIGS. 2 and 4, the upper and lower edges 23a and 24a and the lower edges 23b and 24b of the first and second sides 23 and 24 of the oblique members 2 and 3 are provided. Are formed in a convex circular arc shape which is a semicircular shape having a diameter corresponding to the width of each of the oblique members 2 and 3. Accordingly, the upper edge 25a, 26a and the lower edge 25b, 26b of each of the third and fourth sides 25, 26 are cut off.

2 to 5, the upper and lower edges 23a and 24a and the lower edges 25b and 26b of the first and second sides 23 and 24 of the oblique members 2 and 3 are respectively free ends having a convex arc shape. The upper and lower ends of the oblique members 2 and 3 are provided with reinforcing measures to prevent them from being easily deformed toward the inside of the oblique members 2 and 3 due to the shape formed. A resin or metal upper end cap 29 and lower end cap 30 are respectively inserted and fitted. As shown in FIGS. 11 and 12, the upper end cap 29 and the lower end cap 30 have insertion legs 29a and 30a that fit into the internal spaces of the oblique members 2 and 3, respectively. The head-side edges 29b, 30b of the legs 29a, 30a match the convex arc shapes of the upper and lower edges 23a, 24a and the lower edges 25b, 26b of the first and second sides 23, 24 of the slant members 2, 3, respectively. A convex arc shape is formed, and flanges 29c and 30c are formed along the outer peripheries of the head-side edges 29b and 30b of the convex arc shape. As shown in FIGS. 2 to 4, the upper end cap 29 and the lower end cap 30 are inserted into the upper end portions and the lower end portions of the oblique members 2, 3, respectively, and the eaves 29 c, 30 c are inclined members The surface of the convex arc-shaped upper edge 23a, 24a of each of the first and second sides 23, 24 of 2, 3 and the surface of the lower edge 23b, 24b, and the upper edge 25a of the third, fourth side 25, 26, It is formed so as to cover the surface of 26a and the surfaces of the lower edge 25b, 26b.
Further, as shown in FIGS. 11 and 12, pin shafts 4a and 4b and fixing bushes 38 and 43, which will be described later, are provided on the insertion leg portion 29a of the upper end cap 29 and the insertion leg portion 30a of the lower end cap 30, respectively. A hole 31 through which is inserted, and a concave groove 51 fitted into the ribs 27 and 28 are formed. Incidentally, the upper end cap 29 or the lower end cap 30 shown in FIG. 11 is inserted into the upper and lower ends of the upper oblique members 2 and 3 and the upper ends of the lower oblique members 2 and 3, respectively. A lower end cap 30 shown in FIG. 12 is inserted into each lower end portion of the frames 2 and 3.

  As described above, the flange 29c of the upper end cap 29 and the flange 30c of the lower end cap 30 cover the surfaces of the upper end edges 23a, 24a, 25a, 26a and the surfaces of the lower end edges 23b, 24b, 23b, 24b. I can make the parts and improve the appearance. Further, when the upper end cap 29 and the lower end cap 30 are respectively inserted and fitted into the upper end portions and the lower end portions of the oblique members 2 and 3, the flanges 29c, 30c are respectively connected to the upper end edges 23a, 24a, 25a, 26a and the surfaces of the lower end edges 23b, 24b, 23b, and 24b are covered and abutted with the holes 31 of the insertion leg portions 29a and 30a of the upper end cap 29 and the lower end cap 30 at the same time. The positions of the pin shafts 4a and 4b to be inserted and the positions of the fixing bushes 38 and 43 can be matched. That is, the flanges 29c and 30c can also have a function of regulating the depth of insertion of the upper end cap 29 and the lower end cap 30 into the upper and lower ends of the oblique members 2 and 3.

  The slanting member 2 rising from the suspension side and the slanting member 3 falling from the suspension side have various pin shafts (fixed type pin shaft 4a, moving type pin shaft 4b, intersection pin shaft 4c described later) at the intersections. , 4d) and pivotally mounted relative to each other.

  That is, in FIG. 1, the uppermost intersection C1 connected to the vertical lattice 8 of the upper pantograph mechanism 5 is pivotally connected to a fixed position of the vertical lattice 8 via a fixed type pin shaft 4a. The crossing portion C2 other than the uppermost portion connected to the vertical lattice 8 of the pantograph mechanism 5 in the same upper stage is connected to the vertical lattice 8 via a movable pin shaft 4b so as to be slidable up and down.

As shown in FIG. 6, the fixed type pin shaft 4a at the uppermost intersection C1 connected to the front and rear vertical frames 8a and 8b of the vertical lattice 8 of the upper pantograph mechanism 5 is formed in a hollow shape and has both front and rear ends. The upper ends of the oblique members 2 and 3, the spacer 33 made of an antifriction material interposed between the upper ends of the oblique members 2 and 3, and the oblique members 2 and 3. It pivots so that it may penetrate to the bearing bushes 34 and 34 which consist of an antifriction material interposed between each upper end part and the front-and-rear vertical frames 8a and 8b of the vertical lattice 8, respectively. At that time, when the pin shaft 4a is inserted into the upper ends of the oblique members 2 and 3, the positions of the holes 31 in the insertion leg portions 29a of the upper end cap 29 inserted into the upper ends of the oblique members 2 and 3, respectively. The upper end cap 29 is prevented from slipping out from the upper end portions of the slant members 2 and 3 by being inserted into this as well. And the screw | thread 35 with the head 35a is screwed in from the inside of the groove | channel 18 of each vertical lattice 8 to each internal thread 32 of the front-and-back end of the pin shaft 4a which faces in the front-rear vertical frames 8a and 8b of the vertical lattice 8, The fixed type pin shaft 4a is fixed in the front and rear vertical frames 8a and 8b of the vertical lattice 8 so as not to move up and down, and there is no change in the vertical position when the door body 9 is expanded and contracted.
The heads 35a of the screws 35 at both ends of the pin shaft 4a are stored so as not to protrude outside the front and rear vertical frames 8a and 8b so as to sink into the concave grooves 18 of the front and rear vertical frames 8a and 8b. Can be avoided and contact can be secured. Further, the head portion 35a of the screw 35 is covered with the vertical lattice cover 22, so that it is protected from rain water to prevent the occurrence of rust, and the appearance is improved.

  As shown in FIG. 7, the moving type pin shaft 4b at the intersection C2 other than the uppermost portion connected to the front and rear vertical frames 8a and 8b of the vertical lattice 8 of the upper pantograph mechanism 5 The lower end portions, spacers 36 made of an antifriction material interposed between the lower end portions of the oblique members 2 and 3, the lower end portions of the oblique members 2 and 3, and the longitudinal vertical frames 8a and 8b of the vertical lattice 8 And a bearing bush 37 made of an antifriction material interposed between them. At that time, when the pin shaft 4b is inserted into the lower ends of the oblique members 2 and 3, the positions of the holes 31 of the insertion leg portions 30a of the lower end cap 30 inserted into the lower ends of the oblique members 2 and 3, respectively. And the lower end cap 30 is prevented from coming out from the lower ends of the slant members 2 and 3. Each of the front and rear bearing bushes 37 has slide grooves 37a and 37a on the left and right sides, and the slide grooves 37a and 37a are slidably fitted to the lips 21 of the front and rear vertical frames 8a and 8b. The pin shaft 4b moves up and down in the grooves of the front and rear vertical frames 8a and 8b of the vertical lattice 8 through the bearing bush 37 when the 9 is expanded and contracted.

  As shown in FIG. 8, the intersection C3 between the upper and lower intermediate portions of the slant members 2 and 3 of the upper pantograph mechanism 5 is pivotally attached to the intersection pin shaft 4c. As shown in FIG. 13, this intersection pin shaft 4c has a cross-sectional hat-shaped fixing bush 38 having a resin flange 38f at one end thereof fixed by insert molding or the like, and a female screw 39 provided at the other end. Yes. As shown in FIG. 8, the intersection pin shaft 4 c has a fixing bush 38 in a hole 40 provided in the upper and lower middle portions of the first and second side portions 23 of one of the slant members 2, and a flange 38 f and an outer periphery of the hole 40. And a spacer 41 made of an antifriction material interposed between the upper and lower intermediate portions of the oblique members 2 and 3 and between the upper and lower intermediate portions of the oblique members 2 and 3. And the other end is protruded into the other oblique member 3. The projecting other end of the intersection pin shaft 4c is prevented from slipping out so that the flange 43f is arranged on the outer periphery of the hole 42 in the hole 42 provided in the upper and lower intermediate parts of the first and second side parts 24 of the other oblique member 3. It is inserted into a hooked fixing bush 43 (see FIG. 14) having a hat-shaped cross section, which is fitted and fixed, so as to face the recess 43a of the fixing bush 43, and a screw 44 with a head 44a is screwed into the female screw 39.

  At this time, as shown in FIG. 8, the fixing bush 38 fitted to one of the oblique members 2 is provided with a non-rotating groove 45 in the inner end surface thereof in the radial direction. The slant member 2 is fitted to the ribs 27 provided on the inner surfaces of the first and second side portions 23 and is coupled to one of the slant members 2 in a non-rotating state. Similarly, a rotation-preventing groove 46 is provided in the inner end surface of the fixing bush 43 fitted to the other oblique member 3 in the radial direction. The ribs 28 provided on the inner surface of the side portion 24 are fitted to the other oblique member 3 so as to be locked. Therefore, it is possible to prevent the fixing bushes 38 and 43 from rotating together when the screw 44 is screwed into the female screw 39 of the intersection pin shaft 4c. A cap 47 is fitted into the concave portion 43 a of the fixing bush 43 to cover and conceal the head portion 44 a of the screw 44 facing the concave portion 43 a of the fixing bush 43. As shown in FIG. 15, the cap 47 includes leg portions 47 a formed in a cylindrical shape with split grooves that can be expanded and contracted so as to be elastically contracted in the recesses 43 a of the fixing bush 43. A circumferential groove 47b that is formed on the outer periphery of the leg 47a and engages with an annular projection 43b (see FIG. 14) in the recess 43 in a retaining manner, and is formed integrally with one end of the leg 47a and has a flange 43f in the recess 43a. And a flat head 47c that fits in a state where it sinks until it is substantially flush with the surface (see FIG. 8). However, the cap 47 is not shown in FIG.

  In this way, the head 44a of the screw 44 that fastens the intersection pin shaft 4c of the intersection C3 between the upper and lower intermediate portions of the slant members 2 and 3 does not protrude to the outside. 43a can be placed so that it can sink into 43a, avoiding contact with other objects and ensuring safety. When opening the door, the front and rear slant members 2, 3 are compact between the front and rear vertical frames 8a, 8b of the vertical lattice 8. The thickness of the door body 9 in the front-rear direction (depth direction) can be reduced, and the door body 9 can be made thin and compact. Further, by covering the head 44a of the screw 44 with the cap 47, it is possible to protect against rainwater and prevent rusting, and to improve the appearance.

In FIG. 1, the crossing portion C2 other than the lowermost portion connected to the front and rear vertical frames 8a and 8b of the vertical lattice 8 of the lower pantograph mechanism 6 is the front and rear vertical frame of the vertical lattice 8 of the upper pantograph mechanism 5 shown in FIG. Similarly to the case of the moving type pin shaft 4b at the intersection C2 other than the uppermost portion connected to the uppermost portion 8a, 8b, the vertical sliding is made via the moving type pin shaft 4b with respect to the front and rear vertical frames 8a, 8b of the vertical lattice 8. It is connected freely.
As shown in FIG. 9, the lowermost intersection C4 connected to the vertical lattice 8 of the lower pantograph mechanism 6 includes front and rear vertical frames 8a and 8b of the vertical lattice 8 of the upper pantograph mechanism 5 shown in FIG. As in the case of the fixed type pin shaft 4a at the uppermost intersection C1 to be connected, the fixed position of the front and rear vertical frames 8a and 8b of the vertical lattice 8 is rotatable via the fixed type pin shaft 4a. It is pivotally connected.

  The intersection pin shaft 4c at the intersection C3 between the upper and lower intermediate parts of the oblique members 2 and 3 of the lower pantograph mechanism 6 is between the upper and lower intermediate parts of the oblique members 2 and 3 of the upper pantograph mechanism 5 shown in FIG. It is pivotally attached with the same structure as that of the intersection pin shaft 4c at the intersection C3.

  As shown in FIG. 10, the intersection pin shaft 4d at the intersection C5 of the lower ends of the slant members 2 and 3 of the lower pantograph mechanism 6 has a resin at one end in the same manner as the intersection pin shaft 4c shown in FIG. A fixing bush 38 having a hat-shaped cross section having a flange 38f made of metal is fixed by insert molding or the like, and a female screw 39 is provided at the other end. The intersecting pin shaft 4d is fitted and fixed in a retaining manner so that a fixing bush 38 is disposed in a hole 48 provided at the lower end of one of the oblique members 2 so that a flange 38f is arranged on the outer periphery of the hole 48. The lower end portions of the materials 2 and 3 and the spacer 49 made of an anti-friction material interposed between the lower end portions of the oblique members 2 and 3 are inserted into the other oblique member 3 Make it protrude. When the fixing bush 38 is fitted and fixed to the lower end of one of the oblique members 2, the hole 31 of the insertion leg 30a of the lower end cap 30 shown in FIG. The lower end cap 30 is prevented from coming out of the lower end portion of the oblique member 2 by being fitted to this position.

  As described above, the projecting other end portion of the intersection pin shaft 4d projecting into the groove of the other oblique member 3 has a cross-sectional hat shape shown in FIG. 8 in a hole 50 provided in the lower end portion of the other oblique member 3. As in the case of the flanged fixing bush 43, the flange 43f is inserted into the hooked flanged bushing 43 having a cross-section that is fitted and fixed so as to prevent it from being placed on the outer periphery of the hole 50, and the female screw 39 has a head 44a. It is pivotally attached by screwing the screw 44 of At that time, when the fixing bush 43 is fitted and fixed to the lower end portion of the other oblique member 3, the insertion leg portion of the lower end cap 30 shown in FIG. The lower end cap 30 is prevented from coming out of the lower end portion of the oblique member 3 by being fitted to the position of the hole 31 of 30a.

Further, as shown in FIG. 10, the fixing bush 38 fitted to one of the oblique members 2 is provided with a rotation-preventing groove 45 on the inner end surface thereof in the radial direction. It fits into the rib 27 provided in the inner surface of the 1st, 2nd side part 23 of the frame 2, and it couple | bonds with the one diagonal frame 2 in the non-rotating state. Similarly, a rotation-preventing groove 46 is provided in the inner end surface of the fixing bush 43 fitted to the other oblique member 3 in the radial direction. The ribs 28 provided on the inner surface of the side portion 24 are fitted to the other oblique member 3 so as to be locked. Therefore, it is possible to prevent the fixing bushes 38 and 43 from rotating together when the screw 44 is screwed into the female screw 39 of the intersection pin shaft 4d. A cap 47 is fitted into the concave portion 43 a of the fixing bush 43 to cover and conceal the head portion 44 a of the screw 44 facing the concave portion 43 a of the fixing bush 43. However, the cap 47 is not shown in FIG.
In this way, the head 44a of the screw 44 that fastens the pin shaft 4d of the intersecting portion C5 between the lower ends of the slanting members 2 and 3 does not protrude to the outside. It is possible to avoid contact with other objects and secure safety, and to store the front and rear slant members 2 and 3 between the front and rear vertical frames 8a and 8b of the vertical lattice 8 in a compact manner. Accordingly, the thickness of the door body 9 in the front-rear direction (depth direction) can be reduced, and the door body 9 can be made thin and compact. Further, by covering the head 44a of the screw 44 with the cap 47, it is possible to protect against rainwater and prevent rusting, and to improve the appearance.

  Next, the opening / closing operation | movement of the expansion gate 1 of the said structure is demonstrated. First, when the door body 9 is extended from the open state shown by the phantom line F in FIG. 1 and closed as shown by the solid line in FIG. Go to. Then, the intersection C2 other than the uppermost portion connected to the vertical lattice 8 of the upper pantograph mechanism 5 slides upward with respect to the vertical lattice 8 via the moving type pin shaft 4b, and the lower pantograph mechanism 6 The intersection C2 other than the lowermost part connected to the vertical lattice 8 slides downward via the moving type pin shaft 4b, and the door body 9 extends. At that time, the uppermost intersection C1 (fixed type pin shaft 4a) connected to the vertical grid 8 of the upper pantograph mechanism 5 is located at a fixed position of the vertical grid 8, and the vertical grid 8 of the lower pantograph mechanism 6 Since the connected lowermost intersection C4 (fixed type pin shaft 4a) is also fixed at a fixed position of the vertical grid 8 and there is no change in the vertical position thereof, the adjacent vertical grids 8 and 8 of the door body 9 are adjacent to each other. There is no large gap between the upper end side and the lower end side, so that the reduction of the shielding feeling can be avoided, the shielding feeling as a gate can be secured, and the appearance is also improved.

Specifically, for example, as shown in FIG. 2, the distance between the intersecting portions of the oblique members 2 and 3, the intersecting portions C <b> 1 and C <b> 3 of the oblique members 2 and 3 of the upper pantograph mechanism 5 are illustrated. The distance d1 between them is 154 mm, and the distance d2 between the intersection C3 and the intersection C2 is 154.5 mm. As shown in FIG. 4, the distance d3 between the intersection C2 and the intersection C3 of the oblique members 2 and 3 of the lower pantograph mechanism 6 is 155 and 5 mm, the distance d4 between the intersection C3 and the intersection C4 is 156 mm, The distance d5 between the intersection C4 and the intersection C5 is 156.5 mm.
Thus, by making the distance between the intersections on the upper side smaller than the distance between the intersections on the lower side, as shown in FIG. 16, the door body 9 or the door body 9 in the weightless state is placed on the ground. When the door body 9 is extended in a laid state (the door main body 9 is placed in a horizontal state and no vertical load is applied to the door main body 9), the door main body 9 extends in a reverse fan shape in which the moving side end gradually rises.
However, when such a suspension side end of the door body 9 is connected to a fixing member such as the suspension pillar 10, the gravity of the door body 9, the pin shafts 4 a, 4 b, 4 c, 4 d in the oblique members 2, 3 and As a result, the door body 9 is drooped at the moving side end due to the clearance of the tilting members 2 and 3 and the like. The lowering amount due to the drooping of the door main body 9 and the rising amount due to the reverse fan-shaped deformation of the door main body 9 in the weightless state are offset, and the door main body 9 moves substantially horizontally. Troubles caused by dripping can be solved.

  After the door body 9 is fully closed as shown in FIG. 1, the movable column 14 is locked to the door-to-door column 11 by the lock 15 provided on the movable column 14 of the door body 9.

  Next, when the door body 9 is contracted and opened from the fully closed state shown by the solid line in FIG. 1, the handle 16 of the moving column 14 of the door body 9 is held and pulled toward the suspension pillar 10 side. Then, the intersection C2 other than the uppermost portion connected to the vertical grid 8 of the upper pantograph mechanism 5 slides downward with respect to the vertical grid 8 via the moving type pin shaft 4b, and the lower pantograph mechanism 6 The intersection C2 other than the lowermost portion connected to the vertical lattice 8 slides upward via the moving type pin shaft 4b and the pantograph mechanisms 5 and 6 contract, and the interval between the adjacent vertical lattices 8 and 8 is reduced. Is uniformly narrowed, so that the door body 9 can be placed in the contracted state on the suspending side (see the state diagram of the phantom line F in FIG. 1).

In the embodiment shown in FIG. 1, in the closed state where the door main body 9 is extended, the angle θ1 formed by the oblique members 2 and 3 of the lower pantograph mechanism 6 and the vertical lattice 8 and the oblique member of the upper pantograph mechanism 5 are shown. 2 and 3 are equal to the angle θ2 formed by the vertical lattice 8, that is, the oblique members 2 and 3 of the lower pantograph mechanism 6 and the oblique members 2 and 3 of the upper pantograph mechanism 5 are arranged in parallel. However, instead of this, in the closed state where the door main body 9 is extended, the angle θ1 formed by the oblique members 2 and 3 of the lower pantograph mechanism 6 and the vertical lattice 8 is the oblique member of the upper pantograph mechanism 5. 2 and 3 and the vertical lattice 8 can be set smaller than the angle θ2.
According to this, in the closed state where the door body 9 is extended, the angle θ1 formed by the slant members 2 and 3 of the lower pantograph mechanism 6 and the vertical lattice 8 and the slant members 2 and 3 of the upper pantograph mechanism 5 Compared to the case where the angle θ2 formed by the vertical lattice 8 is equal, that is, the oblique members 2 and 3 of the lower pantograph mechanism 6 and the oblique members 2 and 3 of the upper pantograph mechanism 5 are arranged in parallel. Since the vertical interval of the pantograph mechanism zone 7 can be narrowed, the feeling of shielding by the telescopic gate 1 can be further increased accordingly.

  In the above embodiment, an explanation will be given of the telescopic gate provided with the upper and lower two rows of pantograph mechanisms 5 and 6 and the non-pantograph mechanism zone 7, but the present invention can be similarly applied to the telescopic gate provided with only one row of pantograph mechanisms. Needless to say, the present invention can be applied to a double-opening telescopic gate in addition to the single-opening telescopic gate of the above-described embodiment, and in addition, it can be applied to a telescopic gate having a caster attached to the lower portion of the door body 9.

Moreover, in the said Example, the cross | intersection part C1 and C4 connected with the front-and-rear vertical frames 8a and 8b of the vertical lattice 8 are pivotally attached by the pin axis | shaft 4a which has the internal thread 32 in the front-and-rear both ends, However, instead of the pin shaft 4a having the female screw 32 and the screw 35 with the head 35a, a caulking pin or a retaining pin may be employed.
Further, the crossing portions C3 and C5 of only the oblique members 2 and 3 are pivotally attached by pin shafts 4c and 4d having a female screw 39, and a screw 44 with a head 44a is screwed into the female screw 39. Instead of the pin shafts 4c and 4d having 39 and the screw 44 with the head 44, a caulking pin or a retaining pin may be employed.

DESCRIPTION OF SYMBOLS 1 Telescopic gate door 2 Lifting side up (right rising) slanting material 3 Hanging side sloping (down right) slanting material 4a, 4b, 4c, 4d Pin shaft 5,6 Pantograph mechanism 8 Vertical lattice 8a, 8b Front and back vertical frame DESCRIPTION OF SYMBOLS 9 Door main body 10 Suspended pillar 18 Groove | groove 22 Vertical lattice cover 32, 39 Female screw 35 Screw with head 35a 38 Fixing bush 40, 42 Hole 43 Fixing bush 43a Recess 44 Screw with head 44a 47 Cap

Claims (2)

A pantograph mechanism in which a plurality of slanting members inclined upward from the suspension side and a slanting member inclined downward from the suspension side intersect, and the intersection is pivotally connected by a pin shaft, and this pantograph mechanism is configured to be stretchable A door body provided with a plurality of vertical lattices in the expansion and contraction direction, which is pivotally connected at both ends of a predetermined pin shaft among the pin shafts arranged vertically with respect to the mechanism and pivotally attached to the intersection. In the telescopic gate that forms and connects the suspension base end of the door body to a fixing member such as a suspension pillar,
The vertical lattice has a pair of front and rear vertical frames, and a concave groove is formed on each outer surface side of the front and rear vertical frames so as to extend in the vertical direction, and intersects with the front and rear vertical frames of the vertical lattice of the pantograph mechanism. The pin shaft is pivotally attached to the pin shaft, and the pin shaft penetrates the intersection of the oblique members. The front and rear ends of the pin shaft face the inside of the concave groove and are fitted into the concave groove. A telescopic gate that is covered with a lattice cover. A pantograph mechanism in which a plurality of slanting members inclined upward from the suspension side and a slanting member inclined downward from the suspension side intersect, and the intersection is pivotally connected by a pin shaft, and this pantograph mechanism is configured to be stretchable A door body provided with a plurality of vertical lattices in the expansion and contraction direction, which is pivotally connected at both ends of a predetermined pin shaft among the pin shafts arranged vertically with respect to the mechanism and pivotally attached to the intersection. In the telescopic gate that forms and connects the suspension base end of the door body to a fixing member such as a suspension pillar,
The crossing part of the oblique members only is pivotally attached by a pin shaft, and this pin shaft has a fixing bush made of resin fixed to one end of the pin shaft. It is fitted and fixed in the hole provided in the oblique member, and the other end is protruded into the other oblique member by passing through the intersection of the oblique members. The other end of the projection facing the recess is fitted into the recess by passing through the fixing bush fitted and fixed in the hole provided in the other oblique member and having a recess. A telescopic gate, characterized by being covered with a cap.

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