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Патент USA US2405400

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Aug- 6, 1946-
.1. P. BUTTERFIELD
’
RELEASABLE PIN
2,405,400
''
Filed Nov. 11, 1944
INVENTOR
(JOHN E’ BUTTERFIELD‘
BY
;
' ATTORNEYS.
.
2.45s
Patented Aug. 6, 1946
UNITED STATES PATENT. OFFICE
2,405,400
RELEASABLE PIN
John P. Butter?eld, Highland Park, Mich, assign
or to Chrysler Corporation, Highland Park,
Mich., a corporation of Delaware
Application November 11, 1944, Serial No. 563,073
14 Claims.
(Cl. 85-5)
2
1
This application relates to a construction for
tions l4 and I5 in a direction transverse of the
tube H3. The spacing of the portions l4 and I5
holding parts together. More speci?cally it re
causes them to resist movement of the part It
lates to a device adapted to be inserted through
in the direction of the length of the tube or sleeve
openings in parts for holding them in assembled
|3. The sleeve is of a length to project beyond
relation, which device is releasably maintained
both ‘portions M and I5 and has at one end a
in assembled position with the parts for quick
pair of diametrically opposed slots l9 and 20.
attachment thereto and detachment therefrom.
A member 2| is positioned within the sleeve l8‘
It is well known to provide a construction for
in a relatively close ?t'and is bifurcated or slotted
joining parts that involves a pin-like structure
from its right end as viewed in Fig. 1 to a region
extending through them for holding them to
or left end portion 2|a so as to be provided with
gether. It is ~a considerable problem to design
opposed legs 22 and 23. The legs extend for the
the construction so that the structure is not easily
greater portion of the length of the‘ member 2|.
dislodged from the parts held together as by acci
Each leg is provided at its end with a cam por
dent and yet is easily removable from these parts
when their disassociation is intended. I have 15 tion 24 having an exterior 25 extending both
radially outwardly and axially of the sleeve |8
invented a structure of this sort.
or in other words, diagonally outwardly of the
An object of the present invention is to provide
sleeve l8. Each leg has also at its end imme
improvements in a device for holding parts in
diately adjacent the cam portion 24' a blocking
assembled relation.
'
A further object isthe provision of an improved 20 ‘portion 26 having a surface 21 positioned gen-t
erally in a plane extending at right angles to
pin-like structure for holding parts together,
the axis of the sleeve H3. The surface 2'! is en
which structure is easily attached and detached
gageable with an outer face 28 of the attaching
and yet is safe from accidental detachment.
portion IE to prevent withdrawal of the sleeve
Another object is to provide a simpli?ed and
l8'and the member 2| from the attaching por
less costly‘construction of a releasable pin-like
structure for holding parts together.
'
Other objects will appear from the disclosure.
In the drawing:
Fig. 1 is a view, partially in section, of the 'novel
tions I4 and I5 and the part “5 byvmovement of
the sleeve | 8 and the member 2| to the left as
viewed in Fig. 1.
The sleeve and member
may
‘
.
be moved somewhat to the right of their position
releasable pin of the present invention and of 30 of Fig. 1 to remove the blocking portion 26 of
each leg out of engagement with the part IS.
parts held together by the pin;
The left end of the member 2| projects out
Fig. 2 is a view, partially in section, of the hold
wardly of the left end of the sleeve l8 and has
ing pin in Fig. 1 in a different position of adjust-'
ment;
‘
pivotally connected to it a control element 29‘ by
Fig. 3 is an end view of the pin of Fig. 2, taken 35 a suitable means such as'a rivet 30. The control
element 29 is conveniently formed of two similar
on the line 3-3 of Fig. 2;
‘
sheet metal pieces 3| and 32. each having a large
Fig. 4 is an end view of the pin of Fig. 2, taken
opening 33 provided with a ?ange 34, a ?ange 35
on the line 4—4 of Fig. 2;
formed along one side, and ?anges 36 and 31
Fig. 5 is a sectional view taken on the line 5-5
40 along two other sides in closely related fashion.
of Fig. 2;
rl‘he ?anges 34 abut one another and are metal
Fig. 6 is a view partially in section of a modi?ed .
lically joined by soldering or welding, and the
form of holding pin; and
same thing is true of the ?anges 35., the ?anges
Fig. '7 is an end view of the holding pin of Fig. 6,
3i and 35 by being joined to one another consti
taken on the line 7-1 of Fig. 6.
The reference character l0“ designates a sup 45 tuting the joining means for the pieces 3| and
32 to one another. For each of the pieces 3| and
porting structure to which is attached by means
32 the ?anges 38 and 31 are approximately at
of screws H and i2 a bracket l3 having spaced
right angles to one another and are joined by
attaching portions M and |5. Between the por
an arcuate flange portion 38. The ?ange 35 is
tions I4 and I5 is positioned a part I3. The part
I B is held in place between the portions | 4 and I5. 50 nearer the pivot of the control element 29 on the
member 2| constituted by the rivet 3|] than is'the
by means of a pin or pin-like structure I]. The
?ange 31, and both of these ?anges are nearer A
structure |'| includes a sleeve or tube l8, which
?ts relatively snugly in openings in the attaching
portions l4 and I5 and the part It and resists
movement of the part |6 with respect to the por
the‘ pivot than is the ?ange portion 38.
The ?ange 36 and the flange 31 on the piece
3| are directed outwardly from the ?ange 36 and
2,405,400
3
the ?ange 37 on the piece 32, respectively, thus
stable, and the tendency will be for the struc
constituting faces that engage the left end of the
ture to assume either the position of Fig. 1 or
sleeve I8 in the positions of Figs. 1 and 2. Lugs
that of Fig. 2. As is to be seen from Fig. 3, the
372 and 3‘!b on the left end of the sleeve I8 pro
?anges 36, 31, and 38 extend outwardly from the
ject into the space between the pieces 3| and 32, 5 pieces 3! and 32 sufficiently to cover a width about
preventing rotation of the control element 29
as great as the outer diameter of the sleeve I8,
about the axis of the sleeve I8. In the position
and thereby the arcuate ?ange portions 38 are
of Fig. ‘l the face constituted by the ?anges 36
prevented from becoming lodged in the left end
engages the left end of the sleeve I8, and move
of the sleeve H3.
ment of the member 2| with respect to the sleeve
The lugs 313 and 31b, projecting into the space
I8 is resisted, because engagement of the ?anges
‘between the pieces 3| and 32 constituting the
36 with the left end of the sleeve I8 brings the
control element 29, prevent rotation of the con
left end of the cam portions into engagement with
trol element about the axis of the sleeve I8. In
the bases of the slots I3 and 23. With the parts
this way retraction of the blocking portions 26
of the pin-like structure I1 so arranged with 15 of the legs '22 and 23 through twisting of the
drawal of the structure from the portions I4 and
legs is prevented.
I5 and the part I6 by movement to the left is
The pin or pin-like structure of Figs. 6 and 7
prevented by engagement of the blocking portions
differs from that of Figs. 1-5, inclusive, in sev
26 with the attaching portion I5, and withdrawal
eral respects. The pin-like structure has a mem
of the structure by movement to the right is pre 20 ber 39 Within the sleeve I8, which has opposed
vented by engagement of the ?anges 36 and the
legs 6| and 62, which decrease in radial thick
?ange portions 38 with the attaching portion .14,
the ?anges 36 and the ?ange portions 38 pro
?ecting radially outwardly of the sleeve I8.
ness in a direction from their juncture with the
left end portion 63 toward their ends having'the
cam portions 26 and the blocking portions 26,
located in and functioning with respect to the
slots I9 and 26 in the sleeve I6. This variation
in the thickness of the legs M and 42 provides a
constant strength section for these legs. The pin
When it is desired to withdraw the pin 11 from
the openings in the attaching portions I 4 and
I5 and the ‘part I6, a ?nger is inserted in the
opening 33 in the control element 29, and the
control element is shifted angularly to bring the
of Figs. 6 and '7 has a control means 44, which
?anges 31 into contact with the left end of the 30 is formed of a single piece 45 having a ?nger
sleeve I8, as seen in Fig. 2. This necessitates a
opening 46 and a washer 41, surrounding the left
shifting of the member 2 I 'to the left with respect
end of the member 39 and positioned between
to the sleeve I3, causing the ends of the legs 22
the piece 45 and the left end of the sleeve I6
and 23 to be moved inwardly toward one another
so as to prevent entrance of an arcuate portion
because of sliding of the cam portions '24 of the .35 '48 in the left end of the sleeve I8. This portion
legs 22 and 23 along the bases Of the slots ‘I9
connects two straight portions 49 and 50 gen
and '20. Thus, the blocking portions 26 are moved
erally at right angles ‘to one another, portion
radially inwardly from the position of Fig. 1, in
49 being nearer the pivotal connection of the
which they are exterior or radially outward of
piece 45 with the member 39 constituted by the
the sleeve I8, to the position of Fig. 2, in which 40 rivet 5| than is the portion 56. With the straight
they are within the slots I9 and 26 and do not
portion 49 abutting the washer 4'! as shown in
project beyond the outer diameter of the ‘tube
Fig. 6, the pin of Figs. 6 and '7 is arranged like
16 at all or at least insufficiently to prevent with
the pin I‘! of Figs. 1-5, inclusive, in Fig. 1, i. e.,
drawal of the pin I 1 from the hole in the attach
for preventing ‘withdrawal from parts it is to
ing portions ‘I4 and I5 and the part I6 by move
hold together, for the blocking portions of the
ment to the left. The inward bending of. the legs
legs 4| and 42 are radially outward of the sleeve
22 and 23 takes'place at regions adjacent their
.18. The pin of Figs. 6 and '7 is vbrought to a
juncture with the left ‘end portions H‘1 as indi
position corresponding to that of Fig. 2 by angu
cated in Fig. 2. When ‘the control element 29
lar shifting of the piece 45, in which position the
is returned to its position of Fig. 1 the resilience
straight portion '56 engages the washer 41. This
of the aforementioned leg juncture is su?icient
causes a movement of the member 43 to the left
to make the legs move outwardly, the cam por
and a sliding of the cam portions 24 along the
tions 24 sliding along the bases of the slots I9
bases of the slots I9 and 20. Thus the legs GI
and '26 and shifting the member 2 I to the right.
and 42 move inwardly toward one another, bring
In the position of Fig. 2 the blocking ‘portions 65 ing the blocking portions '26 inwardly into non
26 of the legs '22 and 23 are within the slots I9
blocking position. As is the case with the ?anges
and 26 of the sleeve I 8 so as to'be protected there
36, 37, and 38 of Figs. 1-5, inclusive, the straight
by. At least partial protection is afforded the
portions 49 and 56 and the arcuate portion 48
cam portions 24 and the blocking portions 26 by
cause the pin of Fig. 6 to assume either the posi
the slots I9 and 20 in the position of Fig. 1, and
tion of Fig. 6 or the position, not shown, in which
incidentally the reverse is also true, i. e., partial
‘the straight portion 50 contacts the Washer 41.
protection from these portions of the legs is ob
I claim:
tained.
1. A releasable pin for holding parts together
The fact that the ?anges 36 and 31 are straight
through which the'pin extends, said pin compris
as shown and the ?ange portion 38 connecting 65 ing a sleeve having opposed slots at one end, a
the ?anges 36 and 3-‘! is at a greater distance from
member positioned within the sleeve and protrud
V the pivot of the control element 29 than are the
ing from the opposite end of the sleeve and hav
flanges 36 and 31 makes the pin ‘like structure
ing a slot extending from the end adjacent the
I‘! relatively stable either'in the position of Fig. l
slotted end of the sleeve to a point adjacent the
or in the position of Fig. 2. If either position is 70 said opposite end of the sleeve so as to form legs
assumed, the engagement of the one or the other
having end portions with exterior surfaces pro
set of straight ?anges with the left end of the
jec'ting diagonally outwardly through the slots in
sleeve I8 tends to maintain the particular posi
the sleeve and radially outwardly beyond the
tion. If the arcuate ‘?ange portions 38 engage
sleeve for engagement with'one of the parts, and
the left end of the sleeve I8, the position is un
a control part pivotally connected to the end of
2,405,400
5
the member protruding from the said opposite
end of the sleeve and having one surface spaced
a, certain amount from the connection of the part
with the member adapted to engage the said op
6
with the sleeve for causing by axial movement
of the member with respect to the sleeve.‘ in a
direction from the’ said one end toward the other
gularly related to the said one surface and spaced
a greater amount from the connection of the part
end the said one end of the legs to be moved
toward one‘ another and the blocking portions to
be retracted within the outer diameter of the
sleeve for providing for withdrawal of the'pin
from the parts, means joining the other ends of
the legs for resisting the movement of‘the said
with the member adapted to engage the said op
one end of the legs toward one another, and a
posite end ‘of the sleeve for holding the radially
outwardly projecting exterior surfaces of the end
portions of the legs of the member in and adja
control element pivotally connected to the said'
other ends of the legs so as to be angularly mov
cent the bases of the slots in the sleeve and the
the aforesaid axial movement'of the member.’
posite end of the“ sleeve for permitting the end
portions of the legs on the member to project
outwardly as aforesaid and another surface an
able in contact with the sleeve for'bringing'about
6. A releasable pin for holding parts by pro
jecting therethrough, said pin comprising a sleeve,
a pair of opposed members positioned within the
tudinally of the sleeve from the bases of the slots
sleeve and having blocking portions positionable
toward the said opposite end of the sleeve for pro
exterior of opposite sides of the sleeve for pre
viding for withdrawal of the pin from the parts.
venting withdrawal of :the- pin from the ‘parts and
.2. A releasable pin for holding parts ‘by pro
opposed cam portions engageable with the sleeve
jecting therethrough, said pin comprising a sleeve,
for causing by axial movement of the members
a member positioned within the sleeve and com
with respect to the sleeve the members to move
prising a pair of opposed legs joined at one end
toward one another and the blocking portions to‘
so as to resist movement of the legs toward one
another and having at the other end diagonally 25 be retracted within the outer diameter of the
sleeve for providing for withdrawal of the pin
outwardly extending exterior surfaces and radi
from’ the parts, and means resisting movement
ally outwardly extending exterior surfaces, a con
of the members towards one another.
trol part connected at the said one end of the
7. A releasable pin for holding parts by pro
member for acting against the sleeve to move
the diagonally outwardly extending surfaces of 30 jecting therethrough, said pin comprising a sleeve,
a member‘ having one end projecting from one
the member against the sleeve for forcing the
end of the sleeve and having a slot extending from
legs toward one another and bringing the radially
the other end for a greater portion of the length
outwardly extending exterior surfaces from a
of the member for the formation of opposed legs
position exterior of the sleeve blocking removal
of the pin from the parts to a position within the 35 having at their ends adjacent the other end of the
sleeve blocking portions positionable exterior of
outer diameter of the sleeve permitting with
opposite sides of the sleeve for preventing with
drawal of the pin from the parts.
drawal of the pin from the parts and cam por
3. A releasable pin for holding parts by pro
tions adjacent the blocking portions engageable
jecting therethrough, said pin comprising a sleeve
and a member positioned within the sleeve and 40 with the sleeve for causing axial movement of
the member with respect tothe sleeve from the
having a blocking portion positionable exterior
said other endtoward the said one end to retract
of the sleeve for preventing withdrawal of the pin
the blocking portions within the outer diameter
from the parts and a cam portion engageable with
of the sleeve for providing for withdrawal of the
the sleeve for causing by axial movement of the
member with respect to the sleeve the blocking 45 pin from the parts, and a control element pivotal
ly connected with the said one end of the member
portion to be retracted within the outer diameter
and having ?rst and second portions extending at
of the sleeve for providing for withdrawal of the
approximately right angles to one another and be
pin from the parts.
ing selectively engageable with the said one end
4. A releasable pin for holding parts by pro—r
of the sleeve, the ?rst portion being relatively
,iecting therethrough, said pin comprising a sleeve,
closely spaced from the pivoted connection of the
2. member positioned within the sleeve and hav
diagonally outwardly projecting exterior surfaces
radially inwardly of the-slots and displaced longi
element with the member so as to cause when
ing one end projecting from one end of the sleeve,
engaging the said one end of the sleeve to locate
a blocking portion adjacent the other end of the
the member in the sleeve for positioning of the
sleeve positionable exterior of the sleeve for pre
venting withdrawal of the pin from the parts, 55 blocking portions of the member for preventing
withdrawal of the pin from the parts, the second
and a cam portion engageable with the sleeve for
causing by axial movement of the member with
portion being relatively less closely spaced from
respect to the sleeve in a direction from the said
other end toward the said one end, the blocking
the pivotal connection so as to cause when en
gaging the said one end of the sleeve to locate the
portion to be retracted within the outer diameter 60 member in the sleeve for positioning the blocking
for providing for withdrawal of the pin from the
portions of the member for providing for with
parts, and a control part pivotally connected to
drawal oi‘ the pin from the parts, the ?rst and
the said one end of the member and engaging the
second portions of the control element being
joined by an intermediate ‘ portion having a
said one end of the sleeve for acting through
angular movement of the control part about its (5 5 greater spacing from the pivotal connection than
pivotal connection with the member to bring
the ?rst and second portions for urging the con
trol element either to a position involving engage
about the aforesaid axial movement of the mem
ber and retraction of the blocking portion thereof.
ment of the ?rst portion with the said one end of
the sleeve or to a position involving engagement
5. A releasable pin for holding parts by pro
jecting therethrough, said pin comprising a sleeve,
‘of the second portion with the one end of the
a pair of opposed legs positioned within the sleeve ~ sleeve.
8. The pin speci?ed in claim '7, the control ele
and having blocking portions at one end position
ment comprising two parts havingslightly spaced
able exterior of opposite sides of the sleeve for
preventing withdrawal of the pin from the parts
and cam portions also at the one end engageable
parallel body portions and along two sides out
wardly directed ?anges forming the first and sec?
'7
2,405,400
end portions of the control element and along a
third side ‘and around alarge central opening in
wardly directed ?anges bonded to one another for
8
tween the spaced body ‘portions for preventing re
traction of the blocking portions of the legs
through twisting ‘Of/the legs caused by vrotation of
‘joining the two parts.
‘
the control element about‘the axis of the sleeve.
9. The pin speci?ed in claim 7, the control ele 5
13. The pin speci?ed in claim 5, the sleeve hav
ment being formed of relatively thin sheet-like
ing means for preventing ‘rotation of the control
material, the pin further including a washer sur
element about the axis of‘the sleeve for prevent
rounding the member between the said one end
ing retraction of the blocking portion through
20f the sleeve and the control element for pre
twisting of the legs.
venting entrance of the control element in the 10
14. A releasable pin for holding parts by pro
said one end of the sleeve.
10. ‘The pin speci?ed vin claim 2, the legs de
creasing in thickness from the end of the slot to
jecting therethrough, said pin comprising'an outer
member, and an inner member positioned within
the outer member and having a blocking portion
the cam ‘and blocking portions.
positionable 'to’ prevent withdrawal of the pin
11. The "pin speci?ed in claim .2, the legs being 15 from the parts and a cam portion engageable with
‘uniform in thickness throughout substantially
the outer member for causing by movement of the
their entire length.
members with respect to one another the block
1'12. The ‘pin speci?ed in claim '7, the control
ing portion to be retracted for providing for with
element comprising spaced'body portions, the said
drawal of the pin from the parts.
‘one end of the sleeve having lugs projecting be- 20
JOHN P. BUT‘I'ERFIELD.
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