JPH0755269Y2 - Telescopic gate - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to an expandable gate, and more specifically, a plurality of upper right sloping bars and lower right sloping bars are sequentially arranged between two left and right end vertical bars. The present invention relates to a telescopic gate having an expandable body pivotally attached in a pantograph shape.

(Prior Art) In an expandable gate using an expandable body formed by pivotally connecting a plurality of right upper slope bars and right downward slope bars in a pantograph shape, each slope bar constitutes an expandable mechanism and the gate body itself is used. There is an advantage that it can be used as a crosspiece.

As a conventional expandable gate of this type, for example, one shown in FIG. 7 is known (Japanese Utility Model Publication No. 55-86899). The well-known telescopic gate shown in FIG.
, And a plurality of right upper inclined bars 141, 141 ... And right downward inclined bars 142, 142. The elastic member 104 is assembled, and the intermediate vertical rail 107 with the caster 132 is attached to the intermediate position of the elastic member 104 in the left-right direction.

(Problems to be solved by the invention) However, in the known telescopic gate shown in FIG. 7, the telescopic part is composed of a plurality of right upper inclined bars 141,141 ... And right downward inclined bars 142,142. Since it is only attached, there was a problem that the strength was weak.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of known gates, and an object thereof is to provide an expandable gate that is improved in strength with auxiliary members and can prevent the auxiliary members from being aligned and hanging. It is what

(Means for Solving the Problems) The telescopic gate of the present invention is provided with a plurality of upper right sloping bars and right lower sloping bars between the hanging end side vertical bar and the door contact side end vertical bar, respectively. A main elastic body in which the upper crossing portion, the middle crossing portion, and the lower crossing portion are assembled in a pantograph shape and are pivotally attached to the upper pivot shaft, the middle pivot shaft, and the lower pivot shaft so as to be sequentially expandable and contractible in the left-right direction, A plurality of link members are connected so as to be sequentially expandable and contractible in the left-right direction by the upper shafts of the main expandable body and a plurality of high-positioned shafts located directly above the middle elastic shaft of the main expandable body and higher than the upper shafts. An upper telescopic link body and a vertically elongated vertical guide groove that can slide up and down with the middle stage pivot shaft are provided in a vertical middle portion, and an upper end portion is supported by each high position pivot shaft of the upper telescopic link body and the vertical guide. State in which the middle stage pivot shaft is inserted into the groove And a plurality of intermediate vertical bars that are installed in the gate main body, and the vertical guide groove is abutted against the upper surface of the middle stage pivot inserted in the vertical guide groove when the gate main body is extended. The feature is that a stopper is provided.

(Function) According to the telescopic gate of the present invention, when the gate is expanded and contracted, the pantograph-shaped main expandable body and the upper expandable link body provided on the upper part of the expandable expandable body expand and contract at the same time. The pivot portion supporting the upper end of the shaft moves up or down, and the intermediate vertical rail also moves up and down.
Further, when the gate is expanded or contracted, the middle stage pivot of the main telescopic body also moves up and down, but the vertical displacement of the intermediate vertical rail becomes larger than the vertical displacement of the middle pivot. That is, when the gate is contracted, the upward displacement of the intermediate vertical shaft is larger than the upward displacement of the main shaft on the side of the main telescopic body, and when the gate is extended, the downward displacement of the intermediate vertical shaft is larger than the downward displacement of the intermediate shaft. The amount of displacement increases.
In this way, when the gate is expanded and contracted, a vertical displacement amount difference occurs between the middle stage pivot on the side of the main expansion and contraction member and the intermediate vertical bar. The middle stage pivot inserted in the guide groove is relatively displaced in the vertical direction. Also, in the most extended state of the gate,
The stoppers provided in the vertical guide grooves on the side of each of the intermediate vertical rails come to abut simultaneously on the upper surfaces of the respective middle stage pivot shafts (at the same height position) inserted in the vertical guide grooves, At that time, the postures and heights of the link members of the upper expandable link body are aligned with each other. By the way, one of the inclined bars forming the main elastic body is located at both ends in the left-right direction.
One end (lower end) of each slanting bar is pivotally attached to the hanging end side vertical bar or the door contact side end vertical bar in a vertically immovable state. Since they are sequentially connected in a pantograph shape, the inclined bars do not stick to each other and the entire main elastic body including each middle stage pivot does not hang down by its own weight, and the stopper on the intermediate vertical bar side is provided on the upper surface of the middle stage pivot. It becomes possible to support the load of the upper telescopic link body and the intermediate vertical rail by the middle stage pivot portion that does not hang down when they collide.

(Effect of the Invention) Therefore, the telescopic gate of the present invention has the following effects.

(1) Since the upper expandable link body is provided on the upper part of the main expandable body, and the intermediate vertical crosspiece is provided over the middle stage pivot of the main expandable body and the pivot of the upper expandable link side, the strength of the entire gate is improved.

(2) When the gate is fully extended, the stoppers of the intermediate vertical rails whose upper ends are supported by the pivots of the upper telescopic link body come into abutment with the upper surfaces of the respective middle stage pivots on the main telescopic body side.
At the maximum extension of the gate, the heights of the pivot portions pivotally connecting the link members of the upper expandable link body are made uniform through the respective intermediate vertical bars, and the appearance is good.

(3) When the gate is fully extended, the stopper on the side of the intermediate vertical rail collides with the upper surface of the middle stage pivot of the side of the main telescopic body to prevent the upper telescopic link body and the intermediate vertical rail from hanging down. Therefore, it is not necessary to hold the posture of each link member of the upper expandable link body by the tensioning of each link member when the gate is fully extended. Wider selection range of gate design. For example, when the gate is fully extended, it is possible to select a posture in which the link members line up with each other in a substantially straight line (in that case, the pivot parts that pivotally connect the link members are slightly zigzag vertically). Need to be set).

Embodiments Some embodiments of the present invention will be described with reference to FIGS. 1 to 6, and FIGS. 1 to 4 show the first embodiment of the present invention, FIGS. Shows an expansion / contraction gate of the second embodiment.

In the telescopic gate of the first embodiment shown in FIGS. 1 to 4, reference numeral 1 is a gate main body, and the gate main body 1 includes an end vertical bar 2 on the hanging side and a vertical bar 3 on the door stop side. Between the upper right sloping crosspieces 41, 41 ...
42, ... And a main stretchable body 4 which is sequentially pivotally attached in a pantograph shape, and an upper stretchable link body 5 and a lower stretchable link body 6 attached to the upper end and the lower end of the main stretchable body 4, respectively. 5) intermediate vertical rails 7, 7, ...

In the first embodiment, the main elastic body 4 has five right upper inclined bars 41, 41 ... And right downward inclined bars 42, 42 .. , The lower intersections are the upper pivots 43,43 ... (4 in total)
And middle stage pivots 44,44 ・ ・ (five in total) and lower stage pivots 45,45 ・ ・
(4 in total) are pivotally attached and extendable in the left-right direction. Further, the left and right ends of the main elastic body 4 are vertically moved by the pivots 45A and 45B at the same height position as the lower stage pivot 45 with respect to the hanging end side vertical bar 2 and the door contact side end vertical bar 3. It is immovably pivotally mounted, and is assembled by being vertically slidably connected by slide shafts 43A and 43B at the same height position as the upper stage pivot shaft 43. Therefore, in the main extension / contraction body 4, the lower stage pivots 45, 45, ... Do not move up and down when the gate expands and contracts. The lengths of the inclined bars (41, 42) forming the main stretchable body 4 are set to about 1000 to 1100 in the first embodiment. In this main stretchable body 4, each inclined bar (41,41.
・ 、 42,42 ・ ・)
5), and the left and right ends of the main elastic body 4 are
The left and right end vertical bars 2, 3 are pivoted at the bottom (reference numeral 4
5A, 45B) and is vertically slidably guided at the upper part (reference numerals 43A, 43B), so that each of the upper right slanting bars 41,
41 .. and the right-down inclined crosspieces 42, 42 ..... are tightly attached to each other, and almost never hang down even in the left-right direction intermediate portion of the main elastic body 4.

In the first embodiment, the upper elastic link body 5 and the lower elastic link body 6 at the upper end and the lower end of the main elastic body 4 each have a total of 10 sets of link members 51, 51, ... , 61
., And each link member (51, 51, ..., 61, 61 ..) can be bent and stretched vertically as the main stretchable body 4 expands and contracts. Each link material (51,51 ..., 61,61 ...) of the upper expandable link body 5 and the lower expandable link body 6 is a rectangular plate material having a horizontal length of about 300 mm and a vertical height of about 80 mm. ing. Then, on the side of the upper extension link body 5,
In the upper part of the main elastic body 4, two link members 51 are arranged in front and back, and a total of 10 sets are sequentially continued in the left-right direction, and the end overlapping portions of the link members 51, 51 ,. Each upper shaft 43,43 ··· on the side of the main telescopic body 43 (43 in total) and each slide shaft 43A, 43B on both left and right ends, and another pivot 52,52 · ·
(5 in total). .. and the two slide shafts 43A, 43B of the main telescopic body 4 also serve as pivot shafts for the upper telescopic link body 5, and the upper stage pivot shafts 43, 43 .. Shafts 43A and 43B are
Each of the continuous link members 51, 51 .. In addition, a total of five other pivots 52,52 ··· (each pivot 52,52 · · is the high position pivot within the scope of utility model registration claims)
The link members 51, 51 are pivotally supported at a position closer to the upper part (higher than the upper stage pivot shaft 43) of the remaining end overlapping portion in 1 ...
··················· In the state where they are aligned in a straight line as shown in FIG. 1, the height positions of the pivots pivotally attaching the link members 51, 51 ,. . Therefore, when the gate main body 1 is operated in the contracted direction from the extended state, the upper expandable link body 5 is provided with the link members 51, 51.
・ Is designed to be folded in a zigzag pattern (see Fig. 4). Further, the high position pivots 52, 52, ... In the upper extension link body 5 are respectively the middle stage pivots 4 on the main extension body 4 side.
The intermediate vertical rails 7 are positioned immediately above 4,44 ... And are supported by the upper and lower pivots (52, 44) so as to be oriented vertically. The lower extension link body 6 basically has the same structure as the upper extension link body 5. That is, in the lower expandable link body 6, the link members 61, 61, ..
The end overlapped portions of the main expansion and contraction body 4 side lower shafts 45, 45 ··· and left and right ends of the respective pivot shafts 45A, 45B, and another pivot shaft 62, 62 · · (total 5) A pivot shaft (45, 45A) pivotally attached to the link members 61, 61 ... In a state where the link members 61, 61. , 45B, 62) are arranged in zigzag in the vertical direction (lower pivot 45 and two end pivots 45A, 45B are located at the lower part of the link material end overlapped portion and the other five pivots). 62 is at a position closer to the upper part of the same end overlapping section). The upper expandable link body 5 and the lower expandable link body 6 are in a state in which the gate main body 1 is maximally extended (the suspension element A
In a state in which the space between the door stop B and the door stop B is completely closed), as shown in FIG. 1, each link member (51, 51 .., 61, 61 ..) linearly extends in the left-right direction, or When the gate main body 1 is contracted (for example, FIG. 4), the main expandable body 4 is folded in a vertical zigzag shape as it is contracted.

Each of the intermediate vertical bars 7, 7, ... Has an appropriate vertical length (for example, 9
A vertical guide groove 71 is provided from about the center position in the length direction to the lower end.
The upper ends 7a of the respective intermediate vertical bars 7, 7 ... Are pivotally attached to the high-position pivot shaft 52 (a pivot shaft that is not the pivot shaft on the main telescopic member 4 side) 52 of the upper telescopic link body 5 while Each of them is attached by inserting the middle stage pivot shaft 44 on the side of the main telescopic body 4 into the vertical guide groove 71 of the crosspiece 7. .. When the gate main body is expanded and contracted, the intermediate vertical bars 7,7 .. move vertically together with the high position pivots 52,52 .. The groove 71 is adapted to slide up and down with respect to the middle stage pivot shaft 44.

The vertical guide grooves 71 of the intermediate vertical rails 7, 7 ... Abut against the upper surface of the middle stage pivot shaft 44 on the side of the main extension / contraction body 4 when the gate main body 1 is fully extended, and the intermediate vertical rails 7,7. .. is provided with a stopper 8 for restricting downward movement of the main elastic body 4. In the first embodiment, the forming range of the vertical guide groove 71 is limited and the upper edge of the vertical guide groove 71 is used as the stopper 8. That is, when the gate main body 1 is extended from the contracted state (for example, the state shown in FIG. 4) to the most extended state shown in FIG. 1, the vertical guide grooves 71, 71 ,. The formation range of the vertical guide groove 71 is defined so that the upper edge (stopper 8) of the vertical guide groove 71 abuts the upper surface of the middle stage pivot shaft 44 on the side of the main expandable body 4. By the way, in the upper expandable link body 5, as the link members 51, 51, ... are arranged in a straight line with respect to each other, a virtual line L (first line) connecting the respective pivots (43A, 52, 43 ..., 43B).
The lower the degree of bending shown in the figure), and the smaller the degree of bending of the imaginary line L becomes, the more the two upper stage pivot shafts 43, 43 adjacent to each other.
(Or slide shafts 43A, 43B) between the two link members 51,
The support force (drooping regulation force) for 51 becomes smaller,
As described above, when the gate main body is fully extended (the link members 51, 51, ... of the upper expandable link body 5 are aligned in a straight line), the stopper 8 on the intermediate vertical rail 7 side should abut against the upper surface of the middle stage pivot shaft 44. Causes the link member 5 to hang down with respect to the upper stage pivot shaft 43.
1,51 can be supported by the middle stage shaft 44 portion via the intermediate vertical bar 7. When the gate main body 1 is extended from the contracted state, the height of the intermediate vertical rail 7 is displaced downward and the height of the middle stage pivot shaft 44 is also displaced downward. The amount is larger than the downward movement amount on the side of the middle stage pivot shaft 44, which makes it possible to design the stopper 8 to abut against the upper surface of the middle stage pivot shaft 44 in the most extended state of the gate body.

This gate main body 1 is installed with the hanging end side vertical bar 2 fixed to the hanging base A, and can be expanded and contracted by moving the mounting side end vertical bar 3 in the left-right direction. In the telescopic gate of the first embodiment, the main telescopic body 4
By providing an upper telescopic link body 5 at the upper end of the main telescopic body 4 and a lower telescopic link body 6 at the lower end of the main telescopic body 4, and by disposing a plurality of intermediate vertical bars 7, 7 ,. While the main elastic body 4 is reinforced, the upper elastic link body 5 is
The lower expandable link body 6 and each of the intermediate vertical bars 7, 7 ... Have a function of giving a solid feeling to the design. Further, in the most extended state of the gate main body 1, the vertical guide grooves 71, 71 of the respective intermediate vertical rails 7, 7, ...
··············· The upper edge (stopper 8) of each abuts against the upper surface of the middle stage pivot 44 on the side of the main expansion / contraction body 4, so the intermediate vertical bar 7 and the upper telescopic link body 5 via the intermediate vertical bar 7
Each link member 51, 51 can be supported by the middle stage pivot shaft 44 portion, whereby it is not necessary to support each link member 51, 51 .. As a result, when assembling the link members 51, 51 ··· of the upper expandable link member 5 to the main expandable member 4, it is necessary to consider the mounting posture for preventing the link members 51, 51 ··· from hanging down. Lost, link material 5
The degree of selectivity of the mounting positions of the 1,51 ... Is wide (for example, as in the first embodiment, the link members 51, 51 ,. it can).

In the telescopic gate of the second embodiment shown in FIG. 5 and FIG. 6, the main telescopic body 4 is composed of a large number of right upper sloping bars 41, 4 respectively.
It is constructed by combining 1 ··· and right downward inclined crosspieces 42, 42 ·· in an arrow shape. In this main telescopic body 4, the intersections of the right upper slope 41 and the right downward slope 42 are located at 9 levels in the vertical direction, and the uppermost intersections are respectively located at the upper axis 4
At the intersection of the third step from the top, the first middle axis
44A, 44A .., the intersection of the fifth step from the top is the second middle stage pivot axis 44,44 .., the intersection of the seventh step from the top is the third middle stage pivot axis 44B, 44B. The lower-stage intersections are pivotally connected to the lower-stage pivots 45, 45, ..., respectively, so that the main extendable / contractible body 4 can extend and contract in the left-right direction. The second middle stage pivots 44, 44, ... Which pivotally connect the intersection of the fifth stage from the top, in this embodiment,
Six left and right ends, and a total of six positions (four places) where intermediate vertical rails 7, 7, ... (four in total) should be installed are used. Each of the upper expandable link body 5 and the lower expandable link body 6 uses a total of eight sets of horizontally long plate-shaped link members 51, 51, ..., 61, 61. The main telescopic body 4 and the upper telescopic link body 5 are three pivots of the upper shafts 43, 43 ... Of the main telescopic body 4 and slide shafts 43A, 43B at the left and right ends (the vertical bar 2 at the end of the suspension side). Or, it slides up and down with respect to the vertical bar 3 at the end on the door stop side). The main stretchable body 4 and the lower stretchable link body 6 are basically pivotally mounted in the same manner as the main stretchable body 4 and the upper stretchable link body 5. That is,
The expandable member 4 and the lower expandable link member 6 are composed of a total of three lower stages, that is, 45,45 ... And pivot shafts 45A, 45B at the left and right ends (in the hanging end side vertical bar 2 and the door stop side vertical bar 3). Is pivoted) and is pivoted. A total of four intermediate vertical rails 7 are adopted.
The vertical guide groove 71 of each intermediate vertical rail 7, 7 ... Is formed over substantially the entire length of the intermediate vertical rail 7. The second middle stage pivot shafts 44,44 are inserted into the vertical guide grooves 71,71 ,.
.. and the vertical guide grooves 71, 71 .. Further, the vertical guide grooves 71, 71, ... Are provided with stoppers 8 that abut against the upper surface of the second middle stage pivot shaft 44 on the main telescopic body 4 side when the gate main body 1 is in the most extended state. The stopper 8 in the second embodiment is constructed by interposing a small piece in the vertical guide groove 71. Also in the telescopic gate of the second embodiment, the upper telescopic link body 5, the lower telescopic link body 6 and the respective intermediate vertical bars 7,7 ...
Has a function of reinforcing the main elastic body 4 and imparting a solid feeling to the design, and when the gate main body 1 is in the most extended state, the stopper 8 collides with the upper surface of the second middle stage pivot shaft 44, The upper stretchable link body 5 and the intermediate vertical bar 7 are prevented from hanging down.

Although the lower expandable link body 6 is adopted in each of the first and second embodiments, the lower expandable link body 6 can be omitted in other embodiments.

[Brief description of drawings]

1 is a front view of a telescopic gate according to a first embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a partial perspective view of FIG. 1, and FIG. 4 is of FIG. FIG. 5 is a state change diagram of the telescopic gate, FIG. 5 is a front view of the telescopic gate according to the second embodiment of the present invention, and FIG.
The drawing is a partial perspective view of FIG. 5, and FIG. 7 is a front view of a known expandable gate. 1 …… Gate main body 2 …… Suspender side end vertical bar 3 …… Door end side vertical bar 4 …… Main telescopic body 5 …… Upper expandable link body 6 …… Lower expandable link body 7 …… Intermediate vertical Crosspiece 7a …… Upper end 8 …… Stopper 41 …… Upper right tilting crosspiece 42 …… Right downward tilting crosspiece 43 …… Upper stage axis 44 …… Middle stage axis 45 …… Lower stage axis 51 …… Link material 52 …… (Axis ( High position axis) 71 …… Vertical guide groove

Claims (1)

[Scope of utility model registration request] 1. A plurality of right upper inclined bars (41, 4) are respectively provided between the hanging end side vertical bar (2) and the door contact side end vertical bar (3).
1 ・ ・) and the right descending crosspiece (42, 42 ・ ・) are assembled in a pantograph form, and their upper crossing part, middle crossing part and lower crossing part are respectively upper shaft (43, 43 ・ ・), middle Axis (4
4,44 ・ ・) and lower shafts (45,45 ・ ・) pivotally attached to each other, and the main telescopic body (4) is connected so that it can be expanded and contracted in the left-right direction sequentially.
, And a plurality of link members (51, 51 ...) Each upper shaft (43, 43 ...) Of the main elastic body (4) and the middle shafts (44, 44 ...) of the main elastic body (4). A plurality of high position pivots (52,52 ・
・) And an upper telescopic link body (5) that are sequentially connected to each other so as to be able to expand and contract in the left-right direction, and a vertical guide groove (71) that is vertically long and that can slide up and down with the middle-stage pivot shaft (44) in the vertical middle part Further, the upper end (7a) is supported by the high position pivots (52, 52 ...) Of the upper extension link body (5) and the middle stage pivot (44) is inserted into the vertical guide groove (71). The gate main body (1) is configured with a plurality of intermediate vertical rails (7,7 ...) installed in the vertical state, and the gate main body is extended to the vertical guide groove (71,71 ...). Sometimes, the middle stage pivot shaft (44) is inserted into the vertical guide groove (71).
A telescopic gate characterized by having a stopper (8) that abuts on the upper surface of the door.