U.S. patent number RE45,680 [Application Number 11/785,758] was granted by the patent office on 2015-09-29 for transversely retained multiple slip-joint pliers.
This patent grant is currently assigned to STANLEY WORKS (EUROPE) GMBH. The grantee listed for this patent is Claude Nouvel. Invention is credited to Claude Nouvel.
United States Patent |
RE45,680 |
Nouvel |
September 29, 2015 |
**Please see images for:
( Certificate of Correction ) ** |
Transversely retained multiple slip-joint pliers
Abstract
A multiple joint pliers having a transversely retaining branch
(2), a transversely retained branch (3), and a plate (4). The
transversely retaining branch (2) which includes a first jaw (6), a
first articulating intermediate zone (9) and a first handle (10).
The first articulating zone defines a recess (12), and on either
side thereof, a stepped portion (14). The transversely retained
branch (3) includes a second jaw (21), a second articulating
intermediate zone (23) and a second handle (22). The second
articulating zone being received mobile in rotation, and
selectively in translation, in the recess. The plate (4)
maintaining the second articulating zone in the recess. The ends
(27) of the plate are positioned on the respective stepped
portions. The plate (4) is generally .OMEGA.-shaped when viewed
laterally.
Inventors: |
Nouvel; Claude (Vitry sur
Seine, FR) |
Applicant: |
Name |
City |
State |
Country |
Type |
Nouvel; Claude |
Vitry sur Seine |
N/A |
FR |
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|
Assignee: |
STANLEY WORKS (EUROPE) GMBH
(Dubendorf, DE)
|
Family
ID: |
54149784 |
Appl.
No.: |
11/785,758 |
Filed: |
April 19, 2007 |
PCT
Filed: |
July 06, 2001 |
PCT No.: |
PCT/FR01/02193 |
371(c)(1),(2),(4) Date: |
January 14, 2003 |
PCT
Pub. No.: |
WO02/06012 |
PCT
Pub. Date: |
January 24, 2002 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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Reissue of: |
10332848 |
Jul 6, 2001 |
6880434 |
Apr 19, 2005 |
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Foreign Application Priority Data
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Jul 19, 2000 [FR] |
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00 09495 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B25B
7/10 (20130101) |
Current International
Class: |
B25B
7/04 (20060101); B25B 7/10 (20060101) |
Field of
Search: |
;81/406-416,391-395,385,386,352-360,467,347 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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195 18 555 |
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Nov 1996 |
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DE |
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299 20 171 |
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Feb 2000 |
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DE |
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Primary Examiner: Shakeri; Hadi
Attorney, Agent or Firm: Pillsbury Winthrop Shaw Pittman
LLP
Claims
What is claimed is:
1. Interengaged multigrip pliers comprising: an interengaging arm
having a first jaw, a first intermediate articulation region, and a
first handle, the first intermediate articulation region defining a
depression, and a step on either side of the depression; an
interengaged arm having a second jaw, a second intermediate
articulation region, and a second handle, the second articulation
region being received so as to be movable in rotation, and
selectively in translation, in the depression; and a plate for
holding the second articulation region in the depression, ends of
the plate being positioned on the steps, respectively,
wherein.Iadd.:.Iaddend. the plate has an outer generally .OMEGA.
shape when viewed from a side thereof.Iadd.; the second
intermediate articulation region has an elongate cut-out; the
pliers further comprise a pin attached to the plate and the first
intermediate articulation region; and the pin has a portion thereof
extending through the elongate cut-out in the second intermediate
articulation region so that the second articulation region is
movable in rotation, and selectively in translation, in the
depression.Iaddend..
2. The interengaged multigrip pliers as claimed in claim 1, wherein
the plate includes a planar central part and two end parts, which
are planar and are located in a plane that is offset with respect
to the planar central part.
3. The interengaged multigrip pliers as claimed in claim 1, wherein
the planar central part is connected to each end part by an
inclined connecting zone.
4. The interengaged multigrip pliers as claimed in claim 1, wherein
the interengaging arm includes a projection disposed in a proximal
end of the depression, and a back portion of the interengaged arm
abuts against the projection when the pliers are closed in a
longitudinal position thereof.
5. The interengaged multigrip pliers as claimed in claim 4, wherein
a stop face of the projection is substantially perpendicular to a
base of the depression.
6. The interengaged multigrip pliers as claimed in claim 1, wherein
the plate is positioned by two studs, which are integrally forged
with the interengaging arm, so as to project from the steps and
penetrate into respective openings of the plate.
7. The interengaged multigrip pliers as claimed in claim 6, wherein
each stud is riveted in its respective opening.
8. The interengaged multigrip pliers as claimed in claim 1, wherein
the steps are delimited externally by two respective shoulders
which converge towards a back of the pliers, the plate having at
its longitudinal ends a shape matching the two shoulders.
9. The interengaged multigrip pliers as claimed in claim 1, wherein
the outer generally .OMEGA. of the plate is defined by two planar
end parts, a planar central part, and inclined connecting portions
between the planar end parts and the planar central part.
10. Interengaged multigrip pliers comprising: an interengaging arm
having a first jaw, a first intermediate articulation region, and a
first handle, the first intermediate articulation region defining a
depression, and a step on either side of the depression; an
interengaged arm having a second jaw, a second intermediate
articulation region, and a second handle, the second articulation
region being received so as to be movable in rotation, and
selectively in translation, in the depression; and a plate for
holding the second articulation region in the depression, ends of
the plate being positioned on the steps, respectively, wherein the
plate has an outer generally .OMEGA. shape when viewed from a side
thereof, .[.and.]. wherein the second articulation region of the
interengaged arm is also received in the hollow portion of the
plate, which is defined between the ends of the plate, so as to be
movable in rotation and selectively in translation.Iadd., and
wherein: the second intermediate articulation region has an
elongate cut-out; the pliers further comprise a pin attached to the
plate and the first intermediate articulation region; and the pin
has a portion thereof extending through the elongate cut-out in the
second intermediate articulation region so that the second
articulation region is movable in rotation, and selectively in
translation, in the depression.Iaddend..
.Iadd.11. Interengaged multigrip pliers comprising: a first
interengaging arm having a first jaw, a first intermediate
articulation region, and a first handle, the first intermediate
articulation region defining a depression; a second interengaged
arm having a second jaw, a second intermediate articulation region,
and a second handle, the second intermediate articulation region
having an elongate cut-out and being received so as to be movable
in rotation, and selectively in translation, in the depression; and
a plate that holds the second intermediate articulation region in
the depression, wherein opposite end portions of the plate and are
attached to the first interengaging arm, wherein the plate has an
outer generally .OMEGA. shape when viewed from a side thereof;
wherein a central portion of the plate comprises a recess that
receives a portion of the second intermediate articulated region,
wherein the recess defines a space located between a first plane
along which the central portion is disposed and a second plane
along which at least one of the end portions is disposed such that
a portion of the second intermediate articulation region is
disposed in the space between the first plane and the second plane,
and wherein the central portion has an opening therein; and a pin
having a portion thereof extending into the opening in the central
portion and through the elongate cut-out in the second intermediate
articulation region..Iaddend.
.Iadd.12. The interengaged multigrip pliers according to claim 11,
further comprising notches along the second intermediate
articulation region to enable the first intermediate articulation
region to be selectively locked at different locations relative to
the second intermediate articulation region..Iaddend.
.Iadd.13. The interengaged multigrip pliers according to claim 12,
further comprising a spring that biases the pin in a locking
direction..Iaddend.
.Iadd.14. The interengaged multigrip pliers according to claim 13,
wherein an enlarged head portion of the pin can be depressed
against the bias of the spring to release locking engagement of the
selected notch..Iaddend.
.Iadd.15. The interengaged multigrip pliers according to claim 11,
wherein the plate has openings therethrough at the end portions
thereof, and wherein the openings facilitate attachment of the end
portions to the first interengaging arm..Iaddend.
.Iadd.16. The interengaged multigrip pliers according to claim 11,
wherein a combined thickness of the first intermediate articulation
region and the second intermediate articulation region is
approximately equal to a thickest portion of one of the
arms..Iaddend.
Description
BACKGROUND OF THE INVENTION
The present invention relates to interengaged multigrip pliers.
Multigrip pliers of this type (see for example DE-A-195 18 555,
U.S. Pat. No. 6,019,020) make it possible to provide interengaged
guiding, which is therefore precise and reliable, with two arms
produced by cold forging and a plate attached to the interengaging
arm.
However, in the aforementioned known solutions the planar shape of
the plate leads to a substantial thickness of the interengaging arm
and to a corresponding substantial thickness of the other arm.
SUMMARY OF THE INVENTION
The object of the invention is to thin down the arms of the pliers.
To this end the invention relates to interengaged multigrip pliers
of the aforementioned type, characterised in that the plate has a
generally .OMEGA. shape when viewed from the side.
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of the invention will now be described with reference
to the accompanying drawings, in which:
FIG. 1 shows a partial view in elevation of multigrip pliers
constructed according to the invention;
FIG. 2 shows a partial view in elevation of the interengaging arm
of the pliers shown in FIG. 1;
FIG. 3 shows a partial view in elevation of the interengaged arm of
the pliers shown in FIG. 1;
FIG. 4 shows a view in elevation of the plate;
FIG. 5 shows a sectional view along the broken line V-V in FIG. 4;
and
FIG. 6 shows a sectional view of the pliers along the broken line
VI-VI in FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
The multigrip pliers 1, which are shown assembled in FIGS. 1 and 6
and assumed to be placed flat on a horizontal surface, consist of
an interengaging arm 2 which is made in one piece by cold forging
and is shown in FIG. 2, an interengaged arm 3 which is likewise
made in one piece by cold forging and is shown in FIG. 3, a plate 4
shown in FIGS. 4 and 5, and a device 5 for controlling the opening
of the jaws which can be seen in FIG. 6.
The arm 2 has at its distal or front end a first jaw 6 which has an
appropriate gripping serration 7. It also has, starting from this
jaw, an intermediate region 8 in which a recess 9 is formed, then a
rear or proximal part 10 which forms a handle. The part 10 may be
covered in the usual way with a sleeve 11 made from plastic or
elastomeric material.
The jaw 6 and the part 10 have the same thickness E (FIG. 6) and
have a generally rectilinear shape, whilst the region 8 has a
reduced thickness and, in elevation (FIG. 2), has a generally bent
shape of which the concavity is turned downwards in the
drawings.
The recess 9 (FIGS. 2 and 6) consists of a central depression 12
with a flat base of which the depth is E/2 and of which the base
has a circular opening of diameter d.sub.1. This depression 12 is
bounded at each longitudinal end by a flat step 14 with a height of
approximately E/4. As can be seen in FIG. 2, the steps are limited
at their external ends by respective shoulders 15 which converge
sharply towards one another towards the back of the pliers, that is
to say upwards in FIG. 1. In the illustrated example the straight
lines D1 and D2, which correspond to these shoulders, form an angle
of approximately 50.degree.. The lines D1 and D2 extend along the
respective shoulders 15.
A stud 16 substantially in the shape of a truncated cone which is
produced by cold forging projects from each step 14. In a
corresponding manner, a recess 17 is formed under each stud.
Moreover, a projection 18 is provided on the internal edge of the
proximal step 14. This projection has a proximal face 19 inclined
at approximately 45.degree. and a distal face 20 which is
substantially vertical, which also delimits the part 12 of the
depression.
The external surface of the arm 2, namely its lower surface in the
position illustrated, is planar with the exception of the two
recesses 17.
The arm 3 also has an external surface (its upper surface in the
illustrated position) which is planar. It has a thickness E in its
front or distal region which defines its jaw 21, as well as in its
rear region 22 which forms the handle. In its intermediate
articulation region 23, the thickness of the arm 3 is E/2. This
region 23 is substantially rectilinear in elevation (FIG. 3) and
has an elongate cut-out 24 with a plurality of circular notches 25
of diameter d.sub.2 which is less than d.sub.1, and these circular
notches interpenetrate as is usual in multigrip pliers. The minimum
width of the cut-out 24, between the notches 25, is
d.sub.3<d.sub.2. The handle 22 is covered with a sleeve 26
similar to the sleeve 11.
Viewed in elevation according to FIGS. 1 and 4, the plate 4 has the
contour of the recess 9 of the arm 22 from one shoulder 15 to the
other. In longitudinal section FIG. 5), it has a .OMEGA. shape,
that is to say that its two end parts 27 which are planar and are
applied flat to the respective steps 14 are located in a plane
which is offset downwards with respect to its central part 28 which
is likewise planar. Each part 27 is pierced by a circular opening
29 which widens towards the top, whilst the part 28 is pierced by
circular opening of diameterd.sub.3, bounded at the top by a
circular dish 31 which is not very deep. The inclination of the
connecting zones 32 between the parts 27 and 28 is the same as that
of the edge 19 of the projection 18.
The control device 5 consists of a stepped pin 33 having a lower
part 34 of diameter d.sub.1, an intermediate part 35 of diameter
d.sub.2, an upper part 36 of diameter d.sub.3 and an end part of
smaller diameter. The pin 33 passes upwards from below through the
opening 13, the cut-out 24 and the opening 30. A cap 37 is
positioned in the dish 31, a washer 38 is riveted on the upper end
of the pin 33, and a helical spring 39 in the shape of a truncated
cone is compressed between this washer and the base of the dish
37.
In order to assemble the pliers, the arm 2 is placed on a
horizontal support with the recess 9 turned upwards, then the part
34 of the pin 33 is inserted into the opening 13. Then the arm 3 is
put on with its planar face turned upwards and its intermediate
region 23 placed on the base of the part 12 of the recess 9, a
notch 25 slipping onto the part 35 of the pin.
Next the plate 4 is put onto the assembly in such a way that the
part 36 of the pin 33 passes through the opening 30 and each stud
16 passes through an opening 29. The cap 37 and the spring 39 are
put in position, then the washer 38 is fixed by riveting on the
upper end of the pin 33. Finally the two studs 16 are riveted over
in the openings 29.
In order to adjust the opening of the jaws 6 and 21, the washer 38
is pressed until it is concealed in the cap 37 against the spring
39. Then the part 36 of the pin 33 is located in the cut-out 34,
which makes it possible to displace the pin along this cut-out.
When the washer 38 is released, the spring 39 returns the part 35
into a notch 25 of the cut-out 24, which defines a fixed
articulation point of the pliers (FIG. 6).
As can be seen clearly in FIG. 6, by virtue of the .OMEGA.-shaped
cross-section of the plate 4 the thickness of the arms 2 and 3 can
be limited to E, that is to say double the thickness of the
intermediate articulation zones 8 and 23 of the two arms.
Moreover, irrespective of the adjustment which is chosen, the
handles of the two arms come closer only to a limited extent so as
to prevent the user's fingers from being pinched. The stop is
provided, for the front notch 25, by the contact of the two jaws
and, for the other notches, by the contact of the back of the
region 23 with the front edge 20 of the projection 18. What is
more, as a variant this projection can also limit the closing of
the pliers for the front notch 25.
It should be noted that the substantially vertical orientation of
the edge 20 means that even if the user forces the tool towards
closure, this does not result in any tendency of the plate 4 to be
expelled upwards.
If after a certain period of use the studs 16 become loose or are
deformed by shear, the plate comes into abutment, during locking,
on the convergent shoulders 15, which limits the deformation of the
elements of the pliers and ensures that the plate is held in
place.
* * * * *