TRETEAU PLIANT

FOLDING HORSE

Abrégé anglais

ABSTRACT OF THE DISCLOSURE
A collapsible saw-horse is disclosed, comprising a beam
and two frames extending side by side from the underside and
longitudinally of the beam, and each forming a pair of legs for
supporting the beam. Each frame consists of a single bent tubular
member defining two upright leg portions and an intermediate bight
portion at the lower end of the leg portions. The upper ends of the
leg portions are bent back and inserted within brackets secured to
the underside of the beam. One frame is rigidly secured to the
brackets by screws extending through the brackets to take a collapsed
position parallel to the first frame and an operative beam-supporting
position diverging from the first frame. A pair of pivoted toggle
arms link the two frames to prevent the pivotable frame from spreading
beyond a predetermined limit angle with respect to the fixed frame.

Revendications

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A saw-horse comprising a beam and first and second
frames, each defining a pair of legs for supporting said beam, the
two frames extending side by side from the underside of said beam
and longitudinally of the same, each frame consisting of a single
bent tubular member defining two upright leg portions and an inter-
mediate bight portion interconnecting the lower ends of the two
leg portions, said leg portions and bight portion extending in a
common plane and longitudinally of said beam, said two leg portions
having bent upper ends lying in said common plane and in axial
alignment, brackets secured to the underside of said beam near
both ends thereof and retaining said end portions of said first and
second frames in longitudinal alignment with said beam, the end
portions of said first frame being freely pivotable in said
brackets and the end portions of a the second frame being rigidly
secured to said brackets, said second frame making an obtuse angle
with said beam transversely of the latter, said first frame pivotable
in said brackets transversely of said beam between a first beam-
supporting position and a second storage position, said first
frame in said first position diverging from said second frame in a
direction away from said beam and in said second position extending
substantially parallel to said second frame, and means to prevent
said first frame from pivoting away from said second frame beyond
a predetermined limit angle.
2. A saw-horse as claimed in claim 1, wherein said
bight portion is straight.
3. A saw-horse as claimed in claim 1, wherein said bight
portion is bent upwardly to define a W-shaped frame with said
leg portions, The central part of said first and second W-shaped
frames being straight and in axial alignment with said end portions

of the respective frames, and additional brackets secured to the
underside of the central part of said beam and retaining said central
straight portions of said two frames.
4. A saw-horse as defined in claim 1, 2 or 3, wherein
each bracket is formed of a flat central portion and two outwardly-
upstanding curved flange portions, each bracket secured to the under-
side of said beam by volt means extending through said flat central
portion, each said curved flange portion encircling and retaining said
two frames and further including means extending through one of said
curved flange portions and said second frame to rigidly secured said
second frame to said brackets.

Description

31~
FIELD OF THE IH~ENTION
Tha present lnvsntlon r~lateD to saw-horeeQ, more sp~ciflc-
ally to euch a aaw-horse which i8 collapeible for atorage purposeo.
~ACKGRDUND Of T,HE INVENTION
Saw-horees ars known and have been in u~e tor a long time
ln construction pro~ecto, ropair ~ob~ and the llk~. The lnv~ntion 1~
dioclo3ed hDrein proposes ~ eaw-horse whloh may be u w d conventio~lly
as well a8 for othar purpo8~8-
O~?ECTS OF THE INVENTION
It 1D an ob~ect of the present invenkion to provide a
ea~-horee ~hich iq lightwsight, coll~psible ~nd non-coetly to ~anur~cture.
It 18 another ob~ect o~ the praasnt invention to provlde ~
ssw-horae which may b- ueed in conatruction work~ repair ~obs and domo0tic
and recr~ational activitlos.
~MARY ~F THE INUENTION
The invention conui-t~ o~ 8 boam and fir~t and aecon~ rame~
~xtending side by Jids from the underside and longitud$nally of the b~am.
~ach fram~ defines a p~ir of 199R for ~upporting th~ beam. Each ~rame
consist~ of a singlw bant tubulsr ~0~ber defining two upright leg
2D portlons snd an lntermediate bight portion interconnscting the lower
end~ of the two leg portions. The two leg portians huve bsnt upper ende
lying in axisl alignment lon~ltudinally ot th~ beam. arack~ts are
~ecured to the underside of the beam near both ands thereof and
r~t~in~tha end portions of th~ fra~e. ~he end portions of the first
trame are fre~ly pivotabl~ in the brackets and the end portions of th~
aecond frume are rigidly eecured to the b~ackets. The second fremo
makee an obtuae angle with the bea~ transvereely of the latter, The
flrat ~rame i~ pivot~blu b~t~sn a firet beam~upporting poeition and
a ~econd collapsed position tran~versely et ths beam;in th~ ~r8t
po~ition, the tWD frames are diverging; in the ~econd position, the
two frames aro eubstantially parallel~ ~ean8 prevent the fir~t ~rame
~rom pivoting away ~rom the ~econd ~rame beyond a predetermined limlt
angle. The la~t mean~ are preferably toggle arms pivoted to one
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another and to the correspondlng 189 porttons at ~ach ~nd of the fram~s.
The abov~ wlll be ~ully understood by re~rring to
preferred embodlments of the lnvention lllustrated by way of the ~c-
companylng drawlngs, ln ~hlohs
Flgure 1 lo a parsp0ctive view of a first embadiment of
the ~a~-hor~s;
Figura 2 i8 an end vlew of tha ~a~-horse shown in Flg.
l;
Figure 3 i8 an and v19w of th~ s~w-h3r~ ln collspoed
conf19uration;
Flgure 4 i~ a croc~-~ection o~ ehs bea~ ehowing the
bracket ln end view and the upp~r portions of tuo of ths leg- in cross-
section;
Figure S i8 a view taken slong line 5-5 oP Figure 1
figure 6 i8 a perspective view Q~ an alternative
embodiment of the sah-hor~e; and
Figure 7 i8 8 side slevatisn of the saw-horsa shown in
Figure 6.
2D Like numera1s rafer to like elements throughout the
drawings.
DETAILED DSCRIPTION OF_THE I:UENTIOD
Saw~horee 1 includu~ u beam ~, prefarably made o~ wood,
and supported by firs~ and aecond W-ahaped similar fra~e~ 3 and 4 extend-
ing side by side from the undsrside and longitudinally of beam 1. Eaeh
frame 3 or 4 consists of single bent tubular ~Gmber~ o~ ~uitably rig$d
~aterial and d~fining an intsr~ediate bight port~on interconn w ting
the lower ends of t~o upright leg portiono 3' and 4', resp~cti~ely; the
upper end portion of ~ch leg portion 3' and 4', reapectivsly, ia bent
inwardly, ae shown at 5, and theaa upper snd portions 5 ar~ in axial
alignment. Th~ entire length of each frome 3 or 4 li8~ ln a co~en
plane. The inter~ediate bight portion 18 Quntrally bsnt to for~ an
lnvertud U and to da~ine an upper csntral portion 6 wh$ch i8 in axlal
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alignm~nt w$th the portions 5.
Thr~ tran~versely-orlent~d and longitudinally ~paced-
apart brscket~ 7 escure each o~ the frameo 3 and 4 to the bs~m 2.
Each breckat 7 1~ Pormed with a flat central portlon 7~
and two out~urdly and downwardly curved flsnge portione 7". Oracketo
7 ~re each rigidly ~ecured to b0am 2 by a head bolt ~ flnd nut 9,
~ho~n in Fig. 4. Nut 9 i8 prevented ~rom loosening because it fits
between ths two portiong 7"' connecting respectlvo portion~ 7~ to
central portion 7'.
Flqnge portions 7" retain the portlons 5 and the middl~
upper portion 6 o~ e~ch ~re~eO Fram~ 4 iB piuotally r~talned,
wher~a~ ~rame 3 i8 rigidly retsined at a predetermined transverse
obtuse angle relatl~- to beam 2 by means of self-tapping screw 10 (shown
in Fig. 4), whlch extends through flsnga portion 7~ and portions 5 and
6.
The toggle arms 11 are pivotally 3ecurHd to each other
and to the aosoclated outer uprlght leg portions 3' and 4' of frames
3 and 4. There i~ a p3~ r of such toggle ar~s at each end o~ sQw~hor~3 1.
It w~ll be obvious that when framee 3 and 4 ar~ ~played
apart in use po~ition, 8 strong and rlgidly ~ecure structure io
obtained. To collapee saw-horse 1 into a s~orage or carrying con~lg-
uration, toggle arms 11 are o$~ply pivoted upwurdly and ~rame 4 pivoted
inwardly to u position substantially parallel ~ith frame 3, a8 ~hown
in Figure 3. ~ea~ 2 retains its original angular pog~tion wlth reapect
to frame 3.
Figure~ 6 and 7 ~how an alternativa embodiment of the`
invention. Saw-horss 1' is identical to saw-horse 1, except that
fram~s 3 and 4 are U-~haped, having a low~r hur~zontal and ~tralght
bight portion 12.
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