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Патент USA US3094748

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June 25, 1963
c, H, CHASE
3,094,738
DOOR CLOSING DEVICE
Filed Jan- 30, 1961
2 Sheets-Sheet 1
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INVENTOR.
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June 25, 1963
C. H. CHASE
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- 3,094,738
DOOR CLOSING DEVICE
Filed Jan. 50, 1961
2 Sheets-Sheet 2
M1
INVENTOR
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BY
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,9
awn/£76’,
3,994,733
Patented June 25, 1963
2
3,094,738
DGGR CLOSING DEVICE
Clyde H. (Ihase, 8868 Hendrick Drive, Brighton, Mich.
Filed Jan. 30, 1961, Ser. No. 85,675
13 Claims. (Cl. 16-49)
This invention relates to door closing devices, and
more particularly to spring-actuated devices for urging a
door towards closed position and checking the door swing
as it approaches closed position to prevent or minimize
slamming.
It is an object of the invention to provide a novel and
also be provided in the slide and track for holding the door
in open and closed positions.
Referring more particularly to the drawings, the im
proved door closing device generally indicated at 11 in
FIGURE 1 is shown as being mounted between a horizon
tally swinging door 12 and a door frame 13 which ex
tends at right angles to the door as seen in FIGURE 2.
The outer edge of door 12 has a latch 14 cooperable with
a keeper 15 on post 16, the door being swingable on
10 hinges 17 seen in FIGURE 2.
The door closing mechanism 11 comprises .a track gen
erally indicated at 18, a slide generally indicated at .19,
improved door closing device in which the spring means
and a spring generally indicated at 21.
serves both to urge the door toward closed position and
generally C-shaped cross section, having a ?at ‘central
portion 22 and upper and lower ?anges 23 and 24 re
spectively bent inwardly toward each other as seen in
to check the door swing, thus affording an extremely sim—
ple and compact arrangement.
Slide 18 is of
FIGURE 3 so that the outer ends of these ?anges are sub
It is a further object to provide an improved door
stantially parallel with central portion 22. The track
closing device of this nature which can be easily installed
is of elongated shape and is mountable in horizontal
‘on various types of doors and is readily adjustable to
20 position on an appropriate portion of door 12 adjacent
achieve the proper checking or Abu?lering action.
frame 13. The inner end of track 18 has an elongated
It is another object to provide an improved door clos~
slot 25 while the other end has a similar slot 26. These
ing device having the above characteristics, which can be
slots enable the track to be secured to the door by
used to hold the door in ‘open position without interfering
fasteners 27 and 23 respectively, the track being adjust
with the function of the device for door closing.
It is also an object to provide an improved door 25 able toward or away from frame 13 as necessary for
the operation described below. The inner end 29‘ of track
closing device of the above nature, which can be inexpen
18' is open, as seen in FIGURE 2. The outer end has
sively fabricated of low cost materials and requires little
or no maintenance.
an abutment 31 ‘bent outwardly away from door 12, the
height of this abutment being approximately the same as
Other objects, features and advantages of the present in
that of the space between ?anges 23 and 24 and central
vention will become apparent from the following descrip
portion 22 of the track.
.
tion taken in conjunction with the accompanying draw
ings, in which:
The construction of slide 19 is perhaps best seen in
FIGURE 4. This slide may be fabricated of a sheet
FIGURE 1 is a side elevational View of a portion of a
door showing the novel door closing device in mounted 35 metal stamping, similar to track 18. The slide is of
position;
generally rectangular shape ‘and has a ?at central por
tion 32, the width of this central portion being slightly
FIGURE 2 is a plan cross-sectional View taken along
less than the maximum spacing between ?anges 23 and
the line 2—2 of FIGURE 1 and showing the device with
the door in closed position;
24-, as seen in FIGURE 3. The ‘outer portions of slide 19
FIGURE 3 is a fragmentary side elevational view taken 40 are bent back over central portions 32, and are then
bent outwardly into parallel relation to form two ?anges
along the line 3-3 of FIGURE 2 and showing the slide
33 and 34, these ?anges being centrally apertured as indi
and adjacent portion of the track with the door in closed
position;
cated at 35. The spacing between ?anges 33 and 34 is
less than the space between ?anges 23 and 24 of track
FIGURE 4 is a perspective view of the slide showing
the raised track engaging portions;
18, so that the ?anges may project outwardly from the
FIGURE 5 is a view similar to FIGURE 2 showing 45 track as seen in FIGURE 2. The ends of ?anges 33
the door in partially opened position, and
and 34 may be beveled for the sake of appearance and
safety.
FIGURE 6 is a View similar to FIGURE 2 but show
Slide ‘19 is also preferably provided with a plurality of
ing a modi?ed form of the invention for use with door
raised portions 36 as indicated in FlGURE 4. These
frames which extend in the same plane as the door.
raised portions are formed in the doubled outer portions
In general terms, the invention comprises an elongated
of slide 19 and extend a slight distance toward the outer
track securable in horizontal position on the door, and a
edges of ?anges 33 and 34, so that the raised portions will
slide movably mounted in the track. A spring-like mem
engage the inner surfaces of track ?anges 23 and 24.
ber of ?at generally elongated shape has one end secured
to the slide and the other end to the door frame. The 55 This will help reduce frictional resistance as the slide
moves along the track. The raised portions may be
shape of this member is such that upon opening of the
elongated in a direction at right angles to the direction of
door, the member will be ?exed so as to create a door
closing force, the slide moving along the track toward the
door frame. When the door is released, the spring-like
slide movement, or in other directions as desired.
the spring-like member to ?ex in such a direction as to
more fasteners ‘38, as seen in FIGURE 2. Spring 21
further has an arcuate intermediate or central portion 39
Spring 21 is preferably fabricated of a ?at strip of
member will urge it toward closed position, the slide 60 spring-like steel having a width somewhat less than the
spacing between track ?anges 23 and 124. The spring has
moving toward the outer end of the track.
an inner securing portion 37 of ?at shape adapted to be
As the door approaches its closed position, the slide
secured to door frame 13 adjacent track 18 by one or
will engage an abutment at the outer track end, causing
check the door closing movement. A central portion of 65
which is bent so as to be concave in a direction away
the spring-like member will also engage the inside surface
from the track when the door is closed. Portion 39 of
of the track, movement of the track against this portion
the spring has a relatively large radius of curvature, and
of the spring-like member causing a further checking or
terminates at its outer end in a reversely bent portion 41
buffering action. Means may be provided at the outer
having a much smaller radius of curvature. From this
end for retarding the slide movement in cases where the 70 portion, spring 21 extends back toward track 18, being
spring force is relatively strong. Cooperating means may
inclined somewhat toward the inner end of the door as
3,094,738
3
seen in FIGURE 2. This last-mentioned portion of the
spring is relatively ?at and is indicated at 42. The end 43
of portion 42 is bent sharply so as to surround a pin 4-4
a
door is swung open until inner raised portions 36 on slide
19 snap into position in notches 47. This will prevent
slide 19 from returning to the end of track 18, and the
extending through apertures 35 in slide 32 and securing
door will thus be held in open position until it is pushed
the outer end of spring 21 to the slide so as to be rotat
closed with a force hard enough to dislodge raised por
tions 35 from notches 47.
FIGURE 6 shows a modi?ed form of the invention
for use with door frame 161 which is aligned with door
1G2 rather than at right angles to the door as in the ?rst
ably connected thereto. A spacer bolt 42a, of adjustable
length if desired, may be secured between spring portions
39 and 42, as indicated in FIGURE 2, to limit or prevent
relative movement between the portions of the spring to
which bolt 42a is secured.
10 embodiment. In general, the construction of this form of
the invention, generally indicated at 193, is the same as
A retarding member 45 may be secured within the
that of the previous embodiment and need not be de
outer end of track 18, as seen in FIGURES 2 and 3. This
scribed in detail. The main difference is that fastening
member is of generally rectangular and slightly bowed
shape, preferably having spring-like qualities, and is dis
posed adjacent the outer end of track 18 so that slide 19
will frictionally engage member 655 as it moves toward
the outer end of the track. This frictional engagement
will retard the movement of slide 19’ in a manner de
scribed below. A fastener 46 may be provided for hold
portion 104 of the spring, generally indicated at 105, is
connected to main curved portion 1% of the spring by a
connection portion 107 which is concave toward the door.
Portion lil7 extends at almost right angles to portion 104,
as seen in FIGURE 6, and then curves into portion 106.
The action of this embodiment will be the same as that
ing member 45 in position, this fastener passing through 20 previously described.
While it will be apparent that the embodiments of the
invention herein disclosed are well calculated to ful?ll
A pair of notches, one of which is indicated at 47 in
the objects of the invention, it will be appreciated that
FIGURE 2, may be provided in opposed relation on
the invention is susceptible to modi?cation, variation and
?anges 25 and 24 adjacent the inner end of track 18.
These notches are adapted to receive the two raised por 25 change without departing from the proper scope or fair
meaning of the subjoined claims.
tions 36 at the inner end of slide 19 when the latter
What is claimed is:
moves toward the inner end of track ‘18, thereby holding
1. In a door closing device ‘for a door member hinged
the door in open position as will hereinafter appear.
along one edge to a door frame member, a track of elon
Notches corresponding in shape to the raised portions of
gated shape secured to one of said members at right
slide vl9 could also \be provided at the outer end of track
angles to the hinge axis, an elongated leaf spring having
13 to hold the door in closed position. The raised por
an inner portion secured to the other of said members,
tions 36 at the outer end of slide 19 could for example
an intermediate portion of arcuate shape convex toward
extend in the direction of slide movement, with four
a slot 26 as seen in FIGURE 2.
notches corresponding to the raised portions being
said track, a second intermediate portion outwardly of
priate member may also be provided adjacent the inner
outer spring portion extending toward said track and
formed at both the inner and outer ends of the track. 35 said lastamentioned portion bent so as to be convex away
from said track, a slide mounted in said track, and an
A'stop 48 in the form of a ?ber washer or other appro
pivotally secured to said slide.
2. The ‘combination according to claim 1, further pro
that end of the track, member 48‘ being held in position
40 vided with an abutment at the outer end of said track,
by a fastener 49 extending through slot 25.
said slide being engageable with said abutment when the
When mounting door closing door device 11 in posi
door is in closed position, the proportions of said spring
tion, track vl8 may be longitudinally adjusted and secured
being such that said engagement of the slide with the
so that as door 12 approaches its closed position, slide 19
abutment will cause ?exure of said second intermediate
will engage abutment 31, with portion 22 of track 18
spring portion.
engaging central portion 39 of spring 21 as the door
3. The combination according to claim 2, the relative
continues its closing movement. With this arrangement, 45
proportions of said ?rst and second intermediate spring
as door 12 is opened (a partially opened position being
portions being such that said ?exure in the second inter
shown in FIGURE 5), portion ‘39 of spring 21 will tend
mediate spring portion will urge said ?rst intermediate
to become ?attened, increasing the tension in the spring.
end of track 18 to limit the movement of slide 19 toward
At the same time slide 19 will tend to move toward the
spring portion against said track.
pending upon how far the door is opened.
one edge to a frame member, an elongated track of gen- '
inner end of track 18, the amount of this movement de 50
When the door is released spring 21 will tend to return
to its normal position, thereby exerting a counterclock
wise force on the door as seen in FIGURES 2 and 5.
4. In a [closing device for a door member hinged along
erally C-slraped cross-section secured to one of said mem
bers at night angles to the hinge axis, said track having a
pair of oppositely disposed inwardly turned ?anges there
The door will swing toward its closed position, with slide 55 along, a slide having a flat central portion, a pair of
reversely bent portions outwardly of said central portion,
19 moving outwardly along track 18. As the door ap
and two ?anges extending outwardly from said reverse
proaches its closed position, slide 19 will engage retard
1y bent portions, a spring having an inner end secured
ing member 45 if this member is present because of the
to the other of said members, an arcuate intermediate por
strength of spring 21, and as it passes retarding member
45 will engage abutment 31. Further closing movement 60 tion convex toward said track, and la reversely bent por
tion ‘at the outer end of said intermediate portion extend
of the door will tend to cause inward bending of spring
ing toward said track, said reversely bent portion being
portion 41, and will also cause mutual engagement be
pivot-ally connected to said slide ?anges, and an abut
tween portion 3% of the spring and central portion 22 of
ment at the outer end of said track engageable by said
the track. These combined actions will serve to check 65 slide as the door member approaches its closed position,
or buffer the door closing movement, so that the door will
the relative dimensions of said spring being such that
reach its fully latched position without undue slamming.
said engagement will cause said spring to exert ‘a force
The presence of spacer bolt 452a will strengthen the ad
jacent portion of the spring, ‘and in some cases will serve
on said track tending to ‘check said closing movement.
5. The ‘combination according to claim 4, said abutment
to further control door slam. Throughout the opening 70 comprising an upwardly bent ?ange at the outer end of
and closing movement of the door, slide :19 will be held
said tnack.
against flanges 24 and 25 by the action of spring 21, thus
6. The combination according to claim 4, said track
being further provided with a pair of elongated slots,
preventing any unwanted loose movement between the
and fasteners extending through said slots for 'adjustably
slide and track.
If it is desired to hold the door in open position, the 75 securing the slide to said one member.
5
3,094,738
7. The combination according to 'claim 4, the reversely
bent portions of said slide having a plurality of sections
upset toward the facing surfaces of said track ?anges.
8. The combination according to claim 7, at least one
of said track ?anges being provided with a notched por
tion adjacent its inner end, one of said upset slide sec
tions being receivable by said ‘notched portion, whereby
6
relative proportions of said spring being such that engage
ment of said slide with said abutment will exert a check
ing force on said door.
112. The combination according to claim 11, further
provided with a spacer member secured between said
reversely bent outer spring portion and the adjacent part
of said intermediate spring portion, said spacer member
the door member may be held in open position.
preventing substantial relative movement between the
9. The combination according to claim 4, further pro
parts -to which it is secured.
vided with a stop within said knack adjacent the inner end 10
13. In a closing device for a door member hinged along
thereof engageable by said slide when the door member
one edge to a door ?r-ame member, an elongated track
is in a predetermined open position.
secured to one of said members, a slide in said track, and
10. The combination according to claim 4, further pro
a leaf spring secured at one end to said slide and at the
vided with a retarding member in the form of a leaf
other end to the other of said members, said spring being
spring secured within said track adjacent the outer end 15 so shaped as to urge the door toward its closing position
thereof and frictionally engageable by said slide when the
'door member approaches its ‘closed position.
‘when it is opened, an intermediate portion of said spring
being convex toward said track, said convex portion being
'11. In a closing device ‘for a door hinged along one
engageable with an intermediate portion of said track as
edge to a 'frame, a track secured to said door at right
the door approaches its closing position to check its ?nal
angles to the hinge axis, a leaf spring having an inner 20 closing movement.
end secured to said frame, an arcuate intermediate por~
tion convex toward said track, and a reversely bent outer
portion extending toward said track and inclined toward
said frame, a slide movably mounted in said track and
pivotally connected to the outer end of said spring, and 25
an abutment at the outer end of said track engageable by
slide when the door approaches its closed position, the
References Cited in the ?le of this patent
UNITED STATES PATENTS
91,184
2,664,590
Tucker ______________ __ June 8, 1869
Allen ________________ __ Jan. 5, 1954
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