Note: Descriptions are shown in the official language in which they were submitted.
6~
The invention relates to a gate for closing a passage
mainly comprising at least one post and a part movable with respect
to said post and being formed by a set of standing spikes or
pickets interconnected by a transverse tie.
Gates of the type described above are generally formed
by a rectangular framework, in which the spikes are arranged. Such
frameworks must have sufficient rigidity to avoid deformations in
the vertical plane. This requires, therefore, a relatively heavy
structure with much ma-terial. A further inconvenience is that
such a gate has to be fully finished in the factory and then be
transported to the place of destination, which involves transport
problems.
The invention provides a ga-te assembly comprising an
elongate girder adap-ted to be disposed in generally horizontal,
elevated position and a plurality of upstanding pickets carried by
said girder, support post means for supporting said girder to move
between open and closed positions, and at least one flexible
tension element passing longi-tudinally through said girder and
anchored in tensioned condition adjacent the opposite ends of the
girder to exert longitudinal compression on said girder.
Since the construction is thus limited -to practically one
main girder and vertical pickets or spikes, it can be transported
in the unmounted state, the final assembly being carried out at the
place of use. The final assembly is relatively simple and addi-
tional welding operaticns may be rendered redundant. The component
elements can be protected separately in the factory agains-t corro-
sion due to weather conditions without this protection being
deteriorated in the final assembly.
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In a preferred embodiment as a tie means a single rod-
shaped element is passed through all spikes (pickets) and fastened
at both ends -to an anchoring member of the girder.
Preferably the girder is constructed in the form of a
hollow profile, the clamping element being housed in the profile.
Apart from an improvemen-t in aesthetic appearance, a satisfactory
protection of the clamping element is obtained.
In a fur-ther embodiment the anchoring element can be
drawn against a head face of the girder, whilst the anchoring
element carries a hinge part for the hinge -to be fastened to the
pos-t. By this embodiment a turngate can be ob-tained which is
distinguished from conventional turnga-tes in that now a ver-tical
load on the girder results in the girder being urged downwards,
the prestressing elemen-t absorbing the forces, this element moving
the girder upwards again when the load is removed. In this way a
very "flexible" gate construction is obtained, whilst the hinge
remains free of load.
In a further embodiment the girder is provided with a
guide rail for a guide member and at least one post, for example,
a roller, a sliding piece or the like. In this way a sliding gate
can be ob-tained by simple means.
The girder may have an open hollow profile capable of
accommodating -toothed rack parts so that the teeth protrude out of
the profile. By this step the length of the toothed rack serving
for sliding the gate to and fro by a motor can be readily adapted
to the length of the girder.
The above mentioned and further features will become
apparent from the following descrip-tion of the figures showing a
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fe~ embodiments.
The drawing shows in:
Figure 1 a perspective view of a turngate embodying the
invention,
Figure 2 a perspective view of the turngate of Figure 1
on an enlarged scale,
Figure 3 a perspective view of the stretching element
used in the turngate of Figure 1,
Figure 4 a perspective view of a sliding gate embodying
the invention,
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Fig. 5 a cross-sectional view of the girder
used in the sliding gate of fig. 4~
Fig. 6 a perspective view of part of the
profile of fig. 7,
Fig. 7 a perspective view of a closing member
in a double turngate~
Fig. ~ a sectional view taken on the line
VIII-VIII in fig. 7.
Referring to figs 1 to 3 the swing gate mainly
10 comprises a horizontal girder 1 provided with a sequence of
continual holes in the direction of length, each of which can
receive spikes 2 in a vertical sense. The girder is fastened
at one end to a pivot 3 carried by a post 4 at the side of
the passage. To the post 4 can be joined railings in known
15 manner.
The horizontal girder 1 is formed by a hollow
profile (see fig. 2) having the sequence of holes for recei-
ving the spikes 2 in the upper and lower faces. In the hollow
profile is arranged a fastening element formed by a clamping
20 wire or rod 6, which is passed through transverse holes 7 of
each spike 2. One end of the clamping rod 6 is provided with
; a head part or knob 7, which fits in a saddle support 8. The
support 8 is fastened to a head plate 9 having a circumferen-
tial ridge 10 which slidably fits in the hollow profile 1~
25 the head face of the hollow profile 1 bearing on a projecting
rim part 11. The plate 9 with the circumferential ring 10 and
the rim part 11 is fastened to a pivot wing 12.
The other end of the clamping element or rod 6
is provided with clamping means 13, which bear on an end part
30 14~ whose shaft 15 also fits inside the hollow profile 1 and
whose collar 16 bears on the head face of the hollow profile.
The shaft 15 is depressed so that the clamping means 13 are
located completely inside the end part 14. The opening of the
shaft 15 can be closed by a lid 17.
The gate described above is assembled as fol-
1 ows .
It is assumed that all component parts have to
be assembled at the place of use. The profile 1 is first pro-
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vided with spikes 2 by passing them through the sequence of
holes of the profile. The spikes 2 are arranged in the pro-
file 1 in a manner such that the continous holes 7 are appro-
ximately registering, after which the clamping element 6 can
5 be passed through the holes 7. Then one end, which may al-
ready be provided with a knob 7, is deposited in the saddle
support 8 of the end part 9, after which the rim 10 is slip-
ped into the profile 1. Subsequently the other end of the
element 6 is passed through the hole concerned of the end
10 part 14, after which the rod can be tightened by means of,
for example, any clamping means, say the nut 13 shown screwed
onto a screwthread end of the rod 6. After the desired pre-
stress is attained in the element 6 a guard but can be moun-
ted.
Finally the girder 1 with the pivot wing 12
tightened thereto can be suspended to the co operating pivot
parts of the hinge 3 of the post ~. The lid 17 closes the
opening of the end part 14.
From the foregoing it will be apparent that
20 mounting the gate embodying the invention can be carried out
in an extremely simple manner. The further advantage obtained
by the swing gate described above in that in the case of a
vertical load in the direction of the arrow V (see fig. 2)
g ;,^c/ C r
the free end of the f-iY~er- 1 can move down to an extent such
25 that the lower end of the outermost spike touches the ground.
This only results in a slight prolongation of the clamping
element 6, in which case the girder 1 can turn with respect
to the pivot wing 12, since the profile shifts in place with
respect to the rim 10. When the load is eliminated the clam-
3Q ping element 6 will again push the girder upwards so that thegate resumes its initial position. In this ~ay not only sim-
ple mounting of the gat'e but also a "flexible" gate is obtai-
ned, which in the event of excess load does not cause ~e-~r~
mation of the hinge, whilst after the load the gate resumes
35 its former shape. It will furthermore be obvious that the
location of the spikes 2 with respect to the girder 1 is ac-
curately determined by the location of the transverse holes 7
and the clamping element 6 so that the spikes 2 remain at the
correct height.
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For completeness' sake it is noted that the top ends
of the spikes can be interconnected by any clamping rod or wire 18.
In the case of large vertical dimensions it is furthermore possible
to arrange two girders one above the other. Preferably the lower
girder is located approximately at the average bumper level of
vehicles so that in the case of a collision the forces exerted
on the gate are absorbed by the girder 1.
Figs. 4 to 6 show a further embodiment i.e. sliding gate.
This sliding gate is also provided with a horizontal girder 21,
which has a plurality a through-holes each of which can receive
a spike 22. Between the spikes 22 prefabricated trellis work
22' and 22'' can be fastened at any desired place. Mounting and
fastening of the spikes 22 are carried out as described above.
Each spike has a transverse hole 23 through which a clamping
element 24 can be passed. The clamping element 24 is fastened at
both ends, as described above, to head elements 25 and it can b~
prestressed in the same way.
It should be noted that the clamping element 24 is not
arranged in the upper part of the hollow girder 21, but in the lower
part thereof, whilst the hollow girder i5 furthermore provided
with guide ridges 26 in which additional clamping element 27
are arranged. These clamping elements 27 are fastened, like the
clamping element 24, to the head parts 25. The latter clamping
elements 27 contribute to the rigidity of the girder 21, which
is particularly important with large spans of, for example, 15
metres. The profile 21 of fig. 5 is provided on one side with
guide means 28 formed by an upper and a lower ridge haviny a con-
vex inner surface capable of receiving a roller 29. The roller 29
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is rotatably journalled around the axis A-A about a stub shaft 30
having a flange 31 for being fastened to a post 32 or 33
respectively. The posts 32 and 33 are spaced apart by a given
distance and it will be obvious that when the gate is shifted the
profile 21 can roll to and fro along the posts 32 and 33 because
the rollers 29 can roll along the guide profile 28.
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The reciprocatory sliding movement of the gate
can be obtained by means of a toothed rack-pinion system 34,
the pinion 35 being driven by a motor 36 fastened to the post
32.
According to a feature of the invention the
toothed rack 37 of the toothed transmission 34 is Eormed here
by elements 37' of fixed length~ These elements having, for
example, a length of 1 metre, are slipped into a hollow pro-
~J~ i h
file 38, which is open ~ downward direction until the pro-
10 file 38 is filled throughout its length. A redundant part of
the toothed rack element 37' can be ~w~n off so that in a
simple manner the desired lengths can be obtained. Also in
the case of the above-mentioned toothed rack transmassion 34
a simple mounting can be ensured because only the outermost
15 toothed rack elements 37' need be fixed in the profile 38.
This fixation may take place in any way, for example, by wel-
ding. It is preferred to enclose these elements 37' between
the head elements 25.
It should furthermore be noted that the side
20 of the hollow profile 21 remote from the guide profile 28 may
be provided with ridges 39 on which supports or other members
such as handles can be arranged.
With both types of suspended gates described
above one of the ends of the girder may be provided with a
25 locking element as shown in figs. 7 and 8. The same parts of
the gate are designated by the same reference numerals. The
embodiment of fig. 7 is a double gate, each gate part being
capable of turning about its own post. Each gate part again
comprises a hollow girder 1 with spikes 2 standing vertically
30 therein and being connectable in the girder 1 by means of the
clamping element 6. On the side not shown this clamping
element is fastened to an anchoring member arranged near the
hinge side of the gate part, whereas the other end of the
clamping element 6 is anchored in a bracket 41 of a lock
35 element 42 and 42' respectively. The two lock elements are
complementary i.e. one element has a recess 43 and the other
element has a tongue 44 fitting in said recess.
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The lock element 42 of the right-hand gate
part of fig. 7 is furthermore provided with a guide piece 45
fitting in the girder 1, in which a circular guide 46 is pro-
vided for the outermost spike 2'. This spike 2' is not faste-
5 ned by means of the clamping element 6, but it can be movedup and down in the guide 46. At a suitable place the spike 2'
has a recess adapted to receive the bolt 47 of a locking me-
chanism 48. The bolt has a length such that it can be largely
passed into the guide 46. The locking mechanism 48 comprises
10 a cylinder lock 49 accessible from the outside.
The spike 2' is furthermore provided with a
downwardly directed pin 50 (see fig. 7) which in the lower-
most position of the spike 2' drops into a hole 51 of the
lock element 42 and into a hole 52 of the tongue 44 of the
15 lock element 42'.
It will be obvious that interlocking the gate
parts can take place in a simple manner by directing the gate
~; parts so that the tonyue 44 ~m~s into the recess 43, after
which the spike 2' moves down so that after insertion of the
20 bolt 47 and locking by means of the cylinder lock 49 the clo-
sure is established.
For completeness' sake it is noted that also
the end spike of the other gate part, on the left hand in
fig. 7, can be vertically slidable in the girder 1, whilst
25 the two spikes 2' and 2'', in the closing position or the
open position respectively, can be deposited on the ground or
in a cavity thereof so that a locking relative to the ground
can be established. The invention is not limited to the embo-
diments described above. For example, the shape of the spikes
30 22 may be arbitrary~ for example, curved inwardly and/or out-
wardly on the top side. The spikes may have a tip and adja-
cent spikes may be fastened to one another by hending.
The continuous hole in the girder 21 need not
strictly be vertical, it may also be inclined so that the
35 spikes 22 are in inclined postions both in the plane normal
to the girder 21 and in the direction of length thereof.
The outermost spikes 22 may be provided on the
underside with ground wheels or skids. The girder 21 need
have the form of a hollow profile; it may have any transverse
40 profile and it may even be solid.
