JPH0624558Y2 - Telescopic gate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) In the present invention, a plurality of vertical crosspieces are formed by intersecting a plurality of right upper tilt link pieces and a right down tilt link piece with each other in an X shape. The present invention relates to a telescopic gate which is connected in the left-right direction in such a state that it is sequentially connected in the left-right direction, and is further connected so as to be able to expand and contract in the left-right direction by two lower sets of telescopic links.

(Prior Art) A conventional expandable gate of this type is shown in FIG. In the conventional expandable gate shown in FIG. 8, a plurality of vertical bars 102, ..., 103 ... Are provided with a plurality of right upper tilt link pieces 141, ... And right down tilt link pieces 142 ,. Telescopic link mechanism Y assembled so that it can be expanded and contracted in the left-right direction when crossed in an X shape
Pivot in the link piece intersection point or link one end portion (reference numeral F _2, F ₃₎ or up and down linked slidably Naru state (code _{F 1, F 4, F 5} ) and to as Naru stretchable in the lateral direction The gate main body 101 is configured by fixing the vertical crossbar 102 located at one end side in the left-right direction of the gate main body 101 to the suspension base 110. Further, in this conventional expandable gate, casters 109 and 109 are provided at the lower end on the free side of the gate main body 101 and the lower end of the middle portion in the left-right direction, respectively.
In this expandable door, if the caster 109 at the lower end of the middle portion of the gate body 101 in the left-right direction is omitted, the middle portion of the gate body 101 in the left-right direction hangs down due to its own weight as shown by the chain line L, and the appearance becomes poor. When the length of the gate main body 101 in the left-right direction becomes long, it becomes necessary to provide a plurality of casters at the lower end of the middle portion of the gate main body 101 at appropriate intervals.

However, the conventional expandable gate shown in FIG. 8 has a problem that a caster 109 is required at the lower end of the middle part of the gate body 101 in the left-right direction to prevent the middle part from hanging down, resulting in a high cost. In addition, even if the casters 109 are provided at the lower end of the middle portion in the left-right direction as described above, the gate main body 101 has the hanging base 110 and the casters 10 at the lower end of the middle portion.
9 and between the caster 109 at the lower end of the intermediate portion and the caster 109 at the lower end at the free side end, there was a problem that it hung down by a little height as indicated by a chain line M.

(Object of the Invention) In view of the above problems of the conventional expandable gate, the present invention can omit the caster at the lower end of the left-right intermediate portion of the gate body, and further, the caster at the lower end of the left-right intermediate portion can be omitted. An object of the present invention is to provide an expandable gate that can prevent the middle part of the gate body from hanging even if omitted.

(Means for Achieving the Purpose) The present invention is a state in which a plurality of vertical crosspieces are formed by intersecting a plurality of upper right tilt link pieces and a plurality of right down tilt link pieces with each other in an X shape. In addition to connecting sequentially in the left and right direction,
The lower two sets of expandable links are pivotally attached at the link piece intersections or the link end portions and are connected so as to be expandable and contractible in the left and right directions to form a gate main body, and a vertical rail located at one end in the left and right direction of the gate main body is formed. In the telescopic gate that is fixed to the hanging base and has casters at the lower end of the free side end of the gate main body, in the telescopic link located on the upper side, two pieces that are adjacent to the upper right tilt link piece or the right down tilt link piece The distance between the two connecting portions with the vertical rail is adjacent to the upper right slope link piece or the right downward slope link piece of the lower expansion link within the range where the expansion and contraction action of the gate is not hindered. It is characterized in that it is made larger than the distance between the two connecting portions with the two vertical rails.

(Function) According to the telescopic gate of the present invention, in the two sets of the upper and lower telescopic links, the two vertical bars that are adjacent to the upper right telescopic link piece or the right downward slant link piece of the upper telescopic link. The distance between the three connecting parts between and is calculated from the distance between the two connecting parts between the upper right sloping link piece or the right downward sloping link piece of the expansion link located on the lower side and two vertical bars adjacent to each other. ,
Since it is made large within the range where the expansion and contraction action of the gate is not hindered, in the natural state of the gate main body, the interval between the vertical bars becomes large on the upper side and small on the lower side,
The entire gate main body is in a curved state in which both ends of which the middle portion thereof protrudes upward are lowered downward. By the way, the gate main body is installed in a state where the vertical rail on one end side is fixed to the hanging base and the other end side (free side end portion) is supported by the caster, and the left and right intermediate portion of the gate main body is installed. Is added to the action of trying to hang downward due to its own weight.
However, as described above, in the natural state of the gate body, the middle part is located higher than both ends, and the difference in height makes it possible to absorb the height range in which the left-right middle part of the gate body hangs downward. Even if a caster is not provided at the lower end of the middle part of the gate body, it is possible to prevent the middle part from hanging down from both ends of the gate body.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 7. FIGS. 1 to 5 show the first embodiment of the present invention, and FIGS. The telescopic gate of the second embodiment is shown.

The telescopic gate of the first embodiment shown in FIGS. 1 to 5 includes a plurality of vertical bars 2, ..., 3 ..., and a plurality of right upper tilt link pieces 41. 42 ... Is connected to each other in an X-shaped manner by an expansion / contraction link mechanism Z so as to be expandable / contractible in the left / right direction to form a gate main body 1, and the gate main body 1 and a vertical bar 2 located at one end in the left / right direction. Is fixed to the suspension base 10, and a caster 9 is attached to the lower end of the free side end of the gate body 1.

As shown in FIGS. 2 and 3, the vertical bars 2 and 3 are formed by connecting two front and rear rods 22, 22 (32, 32) at appropriate intervals to each other at their upper ends. ing. In this embodiment, two types of vertical bars having different lengths are adopted, and long vertical bars 2 and short vertical bars 3 are alternately arranged. The long and short vertical bars 2 and 3 are
As shown in FIG. 1, with the gate main body 1 fully extended,
The lower ends of the vertical bars 2 and 3 have the same height, and the fourth
As shown in the figure, when the gate main body 1 is contracted to the minimum size, the vertical rails 3 on the shorter side are moved upward so that the upper ends of the vertical rails 2 and 3 are aligned at the same height.

In the first embodiment, the telescopic link mechanism Z has a long upper right slant link piece 41 ... And a right lower slant link piece 4 respectively.
2 ... And are connected in the left-right direction in a state where they intersect each other in an X shape (arrow-shaped pattern), and a series of right-upward inclined link pieces 41 ... and right-downward inclined link pieces 42 ... Two sets of upper and lower telescopic links 4 and 5 are formed. Then, each vertical bar 2 ·, 3 · are pivot pin in the link piece intersection point or link one end portion of the telescopic link mechanism Z (pivot point A ₂ ..., A ₃₎ or or vertically Slidably connected to (connecting parts A ₁ ..., B ₂ ..., B ₃ ...)
By doing so, they are connected so that they can expand and contract in the left-right direction. Incidentally, in the first embodiment, a connecting portion (pivotally connecting portion A _3, ...) located at an intermediate portion in the vertical direction in the connecting portion (A _{1 to} A ₃ , B _{1 to} B ₃ ) between the vertical rail and the expansion link mechanism. Or B ₁ ...)
Is a vertically immovable portion when the gate main body 1 expands and contracts, and a pivotally attached portion (A
₃ ... or B ₁ ...) than the upper the upper telescopic link 4 becomes lower is set to be lower telescopic link 5. Further, in FIG. 1, the connecting portions A ₂ , A filled with black circles are shown.
₃ (B ₁ ) is a pivotal connecting portion between the telescopic links (4,5) and the vertical bars (2, 3), and connecting portions A ₁ , B ₂ , B ₃ shown by dotted circles are vertical bars (2, 3). ) Is a portion that can be slid vertically. The connecting parts A ₁ , B ₂ , B ₃ shown by the dotted circles are
As shown in FIG. 3 and FIG. 3, the vertical guide grooves 23, 33 formed on the inner surfaces of the vertical bars 2, 3 are guided so that they can slide only in the vertical direction.

The upper right slanted link piece 4 on the upper expansion link 4 side
Two connecting portions between one or two right downward inclined link pieces 42 and two vertical bars 2 and 3 adjacent to each other (A ₁ and A ₂ or A ₂ and A ₃ ).
The respective intervals A ... Between the two right and left slanting link pieces 41 or the right descending slanting link pieces 42 on the side of the lower expansion link 5 are two connecting portions with two adjacent vertical crosspieces 2, 3. (B ₁ and B ₂ or B ₂ and B ₃ ) is larger than each interval B ... within a range that does not hinder the expansion and contraction of the gate (the difference between the interval A and the interval B). , The interval of the code A is 23, although it depends on the length of the A or B.
When it is 0 mm, it is suitable that the interval of the code B is about 229 mm. ). That is, in the first embodiment, each of the upper right slanting link pieces 41 ... And each of the lower right slanting link pieces 42 ...
In the pivotal portion A ₃ (B ₁ ) at the intermediate portion in the up-down direction, the inclination angle a of the link pieces 41a, 42a of the upper portion is smaller than the inclination angle b of the link pieces 41b, 42b of the lower portion by a slight angle. It is refracted like this. In this way, if the interval between the reference signs A ... Is larger than the interval between the reference signs B ... within a range that does not hinder the expansion and contraction of the gate, the distance between the two vertical bars 2 and 3 adjacent to each other is as follows. As shown in FIG. 5, the interval E ₁ on the upper side is slightly larger than the interval E ₂ on the lower side. As a result, when the gate main body 1 is not attached to the suspension element 10 and is allowed to rest freely on a flat surface, the gate main body 1 has a curved shape such that the middle part in the left-right direction thereof projects slightly upward (each vertical direction). The line connecting the lower ends of the crosspieces is curved as shown by the chain line N), so that there is a height difference H between the lower end of the vertical crosspiece 2 located at the middle part and the lower ends of the vertical crosspieces 2, 2 located at both ends. become. This height difference H causes the gate body 1 to be suspended from the
The height of the middle part of the gate main body when it is attached to 0 is set so as to be equal to the downward hanging height.

By the way, the vertical bar 2 at the end of the gate main body 1 on the hanging side is fixed to the hanging base 10, and a caster 9 is attached to the lower end of the free side end of the gate main body 1, so that the gate main body 1 is attached. Then, the middle portion of the gate main body 1 in the left-right direction tries to hang downward by a certain height (the height of reference numeral H in FIG. 5) due to its own weight. Since the part is set to project a little higher than both ends by a height H (Fig. 5), it absorbs the height range where it hangs down by its own weight, and each vertical bar 2, 3 has the same height. Will be aligned with.

In the telescopic gate of the second embodiment shown in FIGS. 6 and 7, the upper telescopic link 4 and the lower telescopic link 5 are separated from each other in the vertical direction, and the upper telescopic link 4 is arranged in the same manner as in the first embodiment. An interval A between _two connecting portions (A ₁ and A ₂ or A ₂ and A ₃ ) between the right upper inclined link piece 41 or the right downward inclined link piece 42 and the two vertical bars 2 and 3 adjacent to each other. Is the two connecting portions (B ₁ and B ₂ or B ₂₎ between the upper right slant link piece 51 or the right down slant link piece 52 in the lower telescopic link 5 and the two vertical bars 2 and 3 that are adjacent to each other. B ₃₎ than the distance B between, are largely within a stretching action of the gates is not inhibited. In the case of the type in which the upper and lower telescopic links 4 and 5 are vertically separated as in the case of the second embodiment, for example, the above-mentioned interval A depends on the length of the interval A (or B). The length of the above-mentioned interval B is 228 with respect to the length of 230 mm.
It can be reduced to about mm. Therefore, in the case of the second embodiment as well, as shown in FIG. 7, in the free state of the gate main body 1, the curve connecting the lower ends of the vertical bars 2 and 3 (reference numeral N) is curved so that it projects upward in the middle portion. As a result, when the gate main body 1 is attached to the suspension base 10, it becomes possible to absorb the amount of sag in the middle portion of the gate main body 1.

(Advantages of the Invention) The telescopic gate of the present invention is provided with two connecting portions of the upper right extension link piece 41 or the right downward inclination link piece 42 and the two vertical bars 2 and 3 adjacent to each other ( A ₁ and A ₂
Or, the distance A between A ₂ and A ₃ ) is set to the upper right tilt link piece (41, 51) or the right down tilt link piece (42, 52) in the lower extension link 5 within the range where the expansion and contraction action of the gate is not hindered. Is larger than the distance B between the two connecting portions (A ₁ and A ₂ or A ₂ and A ₃ ) between the two vertical bars 2 and 3 that are adjacent to each other, The gate main body 1 has a curved shape such that the middle part in the left-right direction protrudes upward with respect to both ends by a certain height, and one end side of the gate main body 1 is fixed to the hanging base 10 and the gate main body 1 is free. A state in which casters 9 are provided at the lower end of the side end (gate body 1
In the installation state), the height range in which the middle part of the gate body 1 hangs downward can be absorbed by the curved shape, and even when a caster is not provided at the lower end of the middle part of the gate body 1, the gate body 1 It does not hang down from the middle part or both ends of the
Further, since the casters at the lower end of the middle portion of the gate body 1 can be omitted, there is an effect that the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of a telescopic gate according to a first embodiment of the present invention, and FIGS. 2 and 3 are II-II and II of FIG. 1, respectively.
I-III sectional view, FIG. 4 is a state change diagram of FIG. 1, FIG. 5 is an explanatory view of the operation of the expansion gate of FIG. 1, and FIG. 6 is a second diagram of the present invention.
FIG. 7 is a front view of the expandable gate according to the embodiment, FIG. 7 is an explanatory view of the operation of the expandable gate of FIG. 6, and FIG. 8 is a front view of a conventional expandable gate. 1 …… Gate main body 2,3 …… Vertical bar 4 …… Upper telescopic link 5 …… Lower telescopic link 9 …… Caster 10 …… Suspension source 41,51 …… Upper right tilted link piece 42,52 …… Right Downward-linking link piece Z: Telescopic link mechanism

Claims (1)

[Scope of utility model registration request] 1. A plurality of vertical crosspieces (2, ..., 3 ...), and a plurality of right downward tilting link pieces (42) as well as a plurality of rightward tilting link pieces (41 .., 51 ..). .., 52 ..))
Are connected to each other in the left-right direction while intersecting with each other in an X-shape, and the left-right direction is pivotally attached at the link piece intersection point or the link end portion of the lower two sets of expansion links (4,5). To form a gate main body (1) by being connected to the gate main body (1), and a vertical bar (2) located at one end side in the left-right direction of the gate main body (1).
Is a telescopic gate in which a caster (9) is provided at the lower end of the free side end of the gate main body (1) while fixing the base to the suspension base (10), and the upper right tilt of the telescopic link (4) located on the upper side. Between the two connecting portions (A ₁ and A ₂ or A ₂ and A ₃ ) between the link piece (41) or the right downward inclined link piece (42) and the two vertical bars (2, 3) adjacent to each other. The interval (A) is the upper right sloped link piece (41, 51) or the right downward sloped link piece (42, 52) in the expansion link (5) located on the lower side within the range where the expansion and contraction action of the gate is not hindered. And the two vertical bars (2,
An expandable gate which is larger than a space (B) between _two connecting portions (B ₁ and B ₂ or B ₂ and B ₃ ) with ₃ ).