JPH0130557Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to an extendable gate with a pantograph extension mechanism, and the extension and contraction of the gate body is improved to make it suitable for mass production. It is something.

(Prior art) A telescoping gate has a pantograph telescoping mechanism formed at the top and bottom of the door body, vertical bars are provided on the front and rear sides, and is connected to a pin shaft to which the pantograph member is pivoted. Both are widely used.

For example, in Japanese Utility Model Publication No. 57-12720, a plurality of pantograph members are crossed in an X-shape and connected in the left-right direction, and the central intersection of the pantograph members and the end intersection of the adjacent pantograph members are connected to pin shafts. The bending frame is rotatably connected to form a bending frame, and the bending frame is disposed at the top and bottom positions of the door body, shifted by half a pitch in the left and right direction, and the central intersection and end of the pantograph member in the vertical bending frame are arranged. Vertical bars are provided on the front and rear sides of the intersection, and a pin shaft that pivotally supports the central intersection of either the upper or lower bending frame with respect to the vertical bar and one end intersection of the other bending frame on either the upper or lower side. A telescoping gate door is disclosed in which pin shafts for pivotally supporting the two ends are fixed, and a pin shaft for pivotally supporting the remaining one end intersection is vertically slidably engaged with each other.

(Problem to be solved by the invention) In this way, a bending frame is provided in which the central intersection and end intersections of the pantograph members intersecting in an X shape are supported by pins at the upper and lower parts of the door body, and the bending frame is A pin shaft that pivots the central intersection of either the upper or lower bending frame and a pin shaft that pivots one end intersection of the other bending frame of either the upper or lower side are connected to the vertical bars provided on the front and rear outwards. The telescopic gate is provided by fixing the respective pantograph members and vertically slidingly engaging the pin shafts that pivotally support the remaining one end intersection. It is necessary to apply them at precise positions with intervals, otherwise the pin shaft engaged with the vertical bar so as to be able to slide up and down will creak, which will prevent the door body from opening and closing smoothly. The manufacturing process required cutting, drilling, and assembly operations with extremely high dimensional accuracy, making it unsuitable for mass production.

(Means for Solving the Problem) The telescopic gate of the present invention has a plurality of pantograph members that intersect in an X-shape and are connected in the left and right direction, and the central intersection of the pantograph members and the end intersection of the adjacent pantograph members are rotatably connected by pin shafts to form a bending frame, and the bending frames are disposed at the upper and lower positions of the door body, shifted by half a pitch in the left and right direction, and the center of the pantograph member in the vertical bending frame is Main vertical bars and auxiliary vertical bars are provided alternately in the left and right direction on the front and back of the intersection and the end intersection, and a pin pivots the central intersection of either the upper or lower bending frame with respect to the main vertical bar. The pin shafts that pivotally support one end intersection of the shaft and any other upper or lower bending frame are respectively fixed, and the pin shaft that pivots the remaining one end intersection is vertically slidably engaged. A pin shaft is fixed to the auxiliary vertical frame, and a pin shaft that pivotally supports the central intersection of either the upper or lower bending frame is fixed, and a pin shaft that pivotally supports the end intersection of the other bending frame, either the upper or lower frame, is fixed to the auxiliary vertical frame. The desired purpose was achieved by providing two pin shafts that were engaged and slidably up and down.

(Function) In the present invention, a plurality of pantograph members are crossed in an X-shape and connected in the left-right direction, and the central intersection of the pantograph members and the end intersection of the adjacent pantograph members are rotated by pin shafts. They are freely combined to form a bending frame, and the bending frames are disposed at the top and bottom positions of the door body, shifted by half a pitch in the left and right direction, and the front and back of the central intersection and the end intersection of the pantograph members in the vertical bending frame are arranged. In a telescopic gate with a vertical bar on the outside, the vertical bar is a main vertical bar and an auxiliary vertical bar that are repeated in the left-right direction, and the center intersection of either the upper or lower bending frame is connected to the main vertical bar as a pivot point. The supporting pin shafts and the pin shafts that pivotally support one end intersection of either the upper or lower bending frame are fixed, and the pin shaft that pivotally supports the remaining end intersection is vertically slidable. A pin shaft is provided to engage with the auxiliary vertical frame, and fixes a pin shaft that pivotally supports the central intersection of either the upper or lower bending frame, and also supports the end intersection of the other bending frame, either the upper or lower frame. The auxiliary vertical bar is fixed to the pin shaft that pivotally supports the central intersection of the bending frame, and the auxiliary vertical bar and the auxiliary vertical bar are On the other hand, since the two pin shafts that pivotally support the intersection of the ends of the bending frame are vertically slidably engaged, even if there is some variation in the pitch of the pin shafts in the pantograph member, the auxiliary vertical beam The two pin shafts provided to be vertically slidable move to balanced positions in the vertical direction and within the clearance range of the slide groove of the vertical beam, and engage with the main vertical beam and the auxiliary vertical beam in a vertically slidable manner. There is no substantial squeak between the pin shafts, and the door body can always be opened and closed smoothly.

Furthermore, according to the telescoping gate of the present invention, when the length of the pantograph member in either the upper or lower bending frame is intentionally changed and the door body is extended, the rhombic pattern created by the bending frame in the upper part and the bending/stretching in the lower part are changed. The diamond-shaped pattern created by the frame can be made into different forms, and a unique design can be expressed on the door body.

(Example) The telescoping gate shown in the drawing is a pantograph member 1.
Intersect in an X shape and connect multiple pieces in the left and right direction,
The central intersection 2 of the pantograph member and the end intersections 3, 3 of the adjacent pantograph members 1, 1 are rotatably connected by pin shafts 4, 4, . . . to form bending frames 5, 5. , the bending frames 5, 5 are disposed at the upper and lower positions of the door body, shifted by half a pitch in the left and right direction, and the central intersections 2, 2... and the ends of the pantograph members 1, 1... in the vertical bending frames 5, 5 are arranged. Main vertical bars 6, 6, which have a U-shaped cross section, whose tops are integrally connected to the front and outside of the intersections 3, 3, and auxiliary vertical bars, which have a U-shaped cross section, whose tops are integrally connected, 7, 7,... are provided alternately and repeatedly in the left and right direction, and a pin shaft 4 that pivots the central intersection 2 of the upper bending frame 5 is fixedly provided as shown in FIG. 3 to the main vertical bars 6, 6... A pin shaft 4 that pivotally supports the lower end intersection 3 of the downward bending frame 5 is fixed to the main vertical beam, and a second pin shaft 4 that pivotally supports the other end intersection 3 of the downward bending frame 5 is fixed to the main vertical beam. As shown in the figure, it is provided so as to be vertically slidably engaged with the slide groove 8 of the main vertical beam 6, and the central intersection portion 2 of the downward bending frame 5 is pivoted to the auxiliary vertical beams 7, 7... The pin shaft 4 is fixed, and the upward bending frame 5 is attached to the auxiliary vertical frame.
Two pin shafts 4, 4, which pivotally support the end intersection portions 3, 3, are engaged to be vertically slidable.

In addition, FIG. 4 shows the above-mentioned telescopic gate, by changing the dimensions of the pantograph members 1, 1, .
1... is longer than that of the downward bending frame.

In the figure, 9 is a bush, 10 is a slider, 11 is a fixed support, 12 is a doorstop support, 13 is a hanging side frame,
14 represents the door stop side frame, and 15 represents the drop bar.

(Effect of the invention) According to the telescopic gate of the present invention, even if there is some variation in the pitch of the pantograph member, the door body can be smoothly expanded and contracted, and therefore, cutting and drilling in the manufacturing process can be easily performed. It is possible to significantly save labor in assembly work, etc., and the number of locations for fixing the pin shafts of the bending frame to the vertical beams is reduced, simplifying the work and improving the aesthetic appearance.

[Brief explanation of drawings]

Figure 1 is a front view showing an example of the telescoping gate of the present invention, Figure 2 is an enlarged cross-sectional view taken along the line A-A in Figure 1, Figure 3 is an enlarged cross-sectional view taken along the line B-B, and Figure 4 is the same view as in Figure 1. It is a front view of a state where the length of the pantograph member in the vertically bending frame is changed in the telescoping gate shown in FIG.
In the figure, 1 is a pantograph member, 2 is a central intersection, and 3 is a pantograph member.
4 represents an end intersection, 4 represents a pin shaft, 5 represents a bending frame, 6 represents a main vertical rail, 7 represents an auxiliary vertical rail, and 8 represents a slide groove.

Claims (1)

[Scope of utility model registration request] A plurality of pantograph members are crossed in an X-shape and connected in the left-right direction, and the central intersection of the pantograph members and the end intersection of adjacent pantograph members are rotatably connected by pin shafts to bend and extend. A frame is formed, and the bending frame is disposed at the upper and lower positions of the door body, shifted by half a pitch in the left and right direction, and main vertical bars are provided at the front and back of the central intersection and the end intersection of the pantograph member in the vertical bending frame. and auxiliary vertical bars are provided alternately and repeatedly in the left and right direction, and a pin shaft that pivotally supports the central intersection of either the upper or lower bending frame with respect to the main vertical bar, and one end of the other bending frame in either the upper or lower direction. The pin shafts that pivotally support the intersections are each fixed, and the pin shaft that pivotally supports the remaining one end intersection is provided so as to be vertically slidably engaged with the auxiliary vertical beam, either above or below. A pin shaft that pivotally supports the central intersection of the bending frame is fixed, and two pin shafts that pivot the end intersections of either the upper or lower bending frame are engaged to be vertically slidable. A telescopic gate that is characterized by: