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Патент USA US3031259

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_ April 24, 1962
c. w. KocH
Filed June 19, 1959
2 Sheets-Sheet 1
April 24, 1962 '
- 3,031,249
Filed June 19, 1959
2 Sheets-Sheet 2
Patented Àpr. 24, 1962
Clarence W. Koch, 6614 Neosho Ave., St. Louis, Mo.
Filed .lune 19, 1959, Ser. No. 821,426
4 Claims. (Cl. B12-_339)
This invention relates to improvements in drawer slides,
Referring now to FIGS. 3 to 7, inclusive, each roller
bracket 16 includes an elongated mounting plate having
spaced apertures to receive securing elements 19. A
pair of widely spaced rollers Ztl are carried on each
bracket by bearing means 21. The rollers 20 are formed
of nylon to avoid the need for lubrication, to reduce
noise, and for long life. As seen in FIGS. 3, 4 and 5,
and is particularly concerned with a floating slide assem
the uppermost bracket 16 is secured to the cabinet wall
bly which will be hereinafter described in connection
11 and the lowermost bracket 16 is secured to the draw
with a preferred embodiment, but no limitation is to be 10 er wall 15. The cooperating slide 17, best seen in FIG.
inferred therefrom.
7, is a one-piece S-shaped member having an upper
A principal object of the invention is to provide a
channel section 22 formed with a track-way 23 between
4drawer slide of simple construction and composed of a
a marginal ñange '24 at the open side and a beveled fillet
minimum of parts to avoid difficulties in operation and
25 at the closed side. A lower section 26 is similarly
íit, and to improve the ease with which the same may be 15 formed with a track-way 27 between a marginal ñange 28
at the open side and a beveled fillet 29 at the closed side.
Another important object of the invention is to pro
The sections 22 and 26 are reversely positioned and are
vide a drawer slide of substantially noiseless character
connected by a web 30 at large radius corners 30a and
in which a novel floating slide constitutes the principal
30b. In forming the slide 17, tabs 31 and 32 at the ends
moving part of the assembly »and contributes to the 20 of the section 22 (FIG. 3) are bent at right angles to close
smooth and noiseless operation.
the ends of the track-way 23, and similar tabs 33 and 34
Other objects of the invention will be pointed out as
close the respective ends of the track-way 27. Each
the description of the preferred form of the assembly
lclosure tab is formed with an opening to receive a re~
silient bumper element 35 so that the rollers will be noise
The invention consists in a pair of identical roller car 25 lessly checked at the ends of its run.
rying brackets, one secured to the stationary frame and
As best seen in FIGS. 3 and 4, the upper slide section
the other secured to the movable drawer, and a Slide
22 is shorter at the front end than slide section 26 so
track member engaged upon the rollers so as to 'be free
that an upwardly opening slot 36 is formed in the end
to move or float during drawer opening and closing mo
of the projecting lower section 27. The slot 36 allows
tion. The invention consists further in those parts and 30 the rollers 2d on the drawer mounted bracket 16 to pass
components hereinafter particularly described, or shown
into and out of the track-way 27 when inserting or re
in the accompanying drawings, wherein:
moving a drawer 14 from the cabinet 10. As best seen
FiG. l is a perspective view of a cabinet in which the
in FIG. 7, the roller 20 is held free of contact with the
invention may be used to advantage;
closed wall of section 22 by the fillet 25, and the inner
FIG. 2 is an enlarged and fragmentary sectional View 35 radius of the corner 30a. Also the oblique angle of the
of the cabinet showing the ñoating slide assembly in
flange 24 holds the roller 20 clear of rubbing Contact,
drawer closed position, the section being taken along line
whereby no friction creating Contact -between rollers and
2~2 in FIG. 1;
slide can occur. The same provisions are found in the
FIG. 3 is a fragmentary sectional elevational View, on
lower track-way 27 where fillet 29 and the inner radius
an enlarged scale, of the slide assembly at the right side 40 at corner 30!) maintain the roller clear of the closed wall.
of a drawer in the cabinet of FIG. l, the View being
A further feature of improvement is seen in FIG. 6,
taken at line 3_3 in FIG. l;
FIG. 4 is a view similar to that of FIG. 3, but showing
wherein the left end of upper section 22 has the end
portion of the web 30 and track-way 23 slightly inwardly
the drawer in extended position;
joggled at 37 to reduce the vertical width of the track
FIG. 5 is a greatly enlarged fragmentary sectional ele 45 way so that the roller 20 in this portion is firmly held
vational view taken at line 5-«5 in FIG. 3;
against looseness and vertical play. Although the scale
FIG. 6 is an enlarged side view of a typical slide as
of FIGS. 3 and 4 does not permit showing the joggle 37,
sem'bly showing details thereof;
it is pointed out that the right hand end of the lower
FIG. 7 is an end view, partly in section, of the slide
track-way 27 and the left hand end of upper track-way
assembly as seen along line J7--7 in FIG. 6; and
50 23 are similarly formed to avoid vertical play when the
FIG. 8 is a fragmentary view of the slide illustrating
respective rollers 20 are in that end position.
an assembly feature of the same.
In operation, FIGS. 3 and 4, when the drawer 14 is
In FIGS. l and 2, the cabinet 10 of a well known
type has a frame which includes side walls 11, la rear
closed the roller bracket 16 secured to its side panel or
wall 15 is at the rear against the end bumper 35. This
wall 12 and divider rails 13 separating the front of the 55 engagement causes the slide 17 to be drawn rightwardly
cabinet into a plurality of openings through which
until the upper cabinet mountedrroller bracket 16 engages
drawers 14 move between open and closed positions.
its front end bumper 35, at which time the drawer 14 is
One drawer 14 is shown in FIG. 1 in partly open posi
tion to show the drawer side panels 15. Each drawer 14
fully closed. In opening the drawer 14 (FIG. 4), the
slide 1‘7 will float between the roller brackets and may,
is suspended on a pair of floating slide assemblies c0m~
60 at times, move with the drawer depending upon the dis
prising, as seen in FIGS. 1 and 2, a roller bracket 16
tribution of weight in the drawer. However, the lower
secured to the cabinet side wall 11, a similar roller brack~
bracket will pass beneath the cabinet bracket and engage
et 16 secured to the drawer side 15, and' a cooperating
the lower front bumper 35 to draw the slide outwardly
suspension slide 17 engaged upon each pair of brackets
until the upper rear bumper 35 in end tab 32 is engaged
16. The assemblies are constructed for use at the left 65 to arrest further outward movement. The drawer is fully
and ride sides of each drawer 14, and in manufactur
open position will have its rear end at the front face of
ing the same the slides 1'7 are left and right hand parts
the cabinet. The widely spaced rollers 20 in each bracket
while the roller brackets 16 are substantially identical
16 .are admirably suited for assuming the torque or re
and interchangeable. In the following description an as
sisting the downward or upward tilting of the drawer, and
sembly at the right side of the drawer 14 will be detailed, 70 at all intermediate positions the same resistance to torque
but it should vbe understood that the same will apply
reactions between drawer and cabinet is evident.
equally to the assembly at the left side.
The attachment of the present assembly is easily per
formed by first locating `and securing the roller brackets
detachably connected to said running means secured to
16 to each side wall 11 of the cabinet interior. The
slides 17 may then be inserted by locating the upper track
said first bracket, by disposing said marginal ñange over
said first bracket running means and pressing said second
way flange 24 over the rollers 20 (FIG. 8) and pressing
channel section toward said cabinet side wall until said
first bracket running means is positioned above said web.
inwardly on the lower section 26 to snap the rollers 20
into position. The open side of the upper track section
22 will then be facing the wall 11 and the open side of
the lower` track section 26 will face into the cabinet (FIG.
ment through said opening and having side walls spaced
The drawer is assembled with the slide 17 pulled
from said cabinet side walls, a drawer front wall closing
out, as in FIG. 4, so that the rollers 20 on the drawer
said cabinet opening when said drawer side walls are
mounted bracket 16 may be inserted at opening 36. This
substantially disposed within said cabinet, the improve
2. In a cabinet having side walls and a drawer receiv
ing opening therebetween, a drawer disposed for move
ment of means to movably support said drawer in said
cabinet for slidable movement therein comprising a first
upwardly so that the rollers 20 will clear the front stop
bracket secured to the forward end of said cabinet side
tabs 33. The drawer 14 is disengaged by reversing the
above described operation.
15 wall adjacent said drawer opening, a second bracket
secured to the drawer side wall adjacent its rear end,
The above described drawer slide assembly has the
said brackets being located one above the other in the
advantages of being very simple in construction and
space between said drawer side wall and cabinet side
operate, there being only one moving part 17 which ñoats
wall so said brackets pass each other when said drawer
between a pair of roller brackets 16 to provide drawer
opening extension substantially equivalent to the length 20 is opened and closed, roller means secured to each bracket
and disposed in vertical alignment with each other one
of both track-ways 23 and 27. The arrangement of the
above the other to permit said roller means to pass each
track-ways makes it possible to have a relatively short
other when said drawer is opened and closed, and a slide
length slide 17 and torque reaction is resisted in the
member disposed in said space between said cabinet and
widely spaced rollers 20 on each bracket so that a very
smooth drawer action is obtained regardless of the load 25 drawer side walls and being detachably connected to said
roller means, said slide member comprising an upper
ing of the drawer or its position between the open and
channel-shaped elongated section having a vertical inner
closed positions. The formation of the ñllets 25 and 29,
leg, a horizontal top leg extending outwardly from the
and the inner radius at flanges 24 and 28 maintain the
vertical leg and a downwardly and outwardly inclined
rollers centered in the respective tracks and avoid the
side rubbing of the rollers.
30 marginal flange on said horizontal leg forming an open
side facing said cabinet side wall with a trackway adja
While a preferred assembly has been shown, all equiv
cent thereto, and a lower channel-shaped elongated sec
alent assemblies and modifications are intended to be
tion having a Vertical outer leg, a horizontal bottom leg
included within the scope of the appended claims.
extending inwardly from said vertical outer leg and an
What is claimed is:
1. In a cabinet having side walls and a drawer receiving 35 inwardly and upwardly inclined marginal flange on said
bottom leg forming an open side facing inwardly with
opening therebetween and a drawer movably received in
a trackway adjacent thereto, a horizontal web connect
the opening and having side walls spaced from the cabinet
ing said vertical legs to each other, said lower section
side walls and a front wall closing the cabinet opening
being substantially longer than said upper section and
with the drawer moved into the cabinet, the improvement
of means to movably support the drawer on the cabinet 40 having a slot in its front upper end adjacent said cabinet
is accomplished by appropriately tilting the drawer front
comprising, a first bracket secured on a cabinet side wall
adjacent the drawer opening; a second bracket secured
on. a drawer side wall remote from the drawer front wall;
opening to receive roller means secured to said drawer
bracket therein, said marginal flange on said upper sec
tion being outwardly and downwardly inclined with re
said brackets being located in offset relation in the space
spect to said top horizontal leg and spaced from said
able to pass each other in the opening and closing move
ment of the drawer; friction reducing running means car
ried by each bracket and located in a common plane; and
a slide member disposed in the space between the cabinet
and drawer side walls, said slide member including a ñrst 50
tachably connected to said cabinet roller means by dis
posing said upper marginal flange over said rollerl means
and pressing said lower section toward said cabinet wall
between the cabinet and drawer side walls so as to be 45 web a distance to permit said slide member to be de
channel-shaped elongated section having an opening at
one side defined by a flange along one margin and hav
ing a trackway therein adjacent said flange, and a second
channel-shaped elongated section open at one side and
until said roller means is positioned above said web.
3. The cabinet of claim 2 wherein fillet means are
provided between said horizontal legs and said vertical
legs to deiine a trackway with said flanges for said roller
4. The cabinet of claim 2 wherein said upper elongated
having a trackway therein, said channel-shaped sections 55 section has its forward end adjacent said slot and between
said top horizontal leg and said web joggled toward each
being connected by a web and having the open sides
other to firmly hold the roller means disposed therebe
facing in opposite directions and said second section be
ing longer than said first section to provide a slot adja
cent one end of said slide member opening to the track
way therein and admitting running means thereto, said 60
slotted end of said slide member being adjacent the
cabinet opening, said first channel-shaped section being
engaged on said running means of said ñrst bracket in
position to suspend said slide member in the space be
tween the cabinet and drawer walls, said marginal flange 65
on said first channel-shaped section extending at an ob
References Cited in the file of this patent
lique angle toward said cabinet side wall and spaced from
said web a distance to permit said slide member to be
Yawman _____________ __ Mar. 24,
Zibell ______________ __ Aug. 26,
Brown et a1. __________ __ June 12,
Arnit ________________ __ Aug. 4,
France ______________ __ .lune 22, 1909
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