IE84063B1 - An adjustable mounting assembly for mounting a support stay of a clamp arm to a dipper arm of a back acter - Google Patents
An adjustable mounting assembly for mounting a support stay of a clamp arm to a dipper arm of a back acter Download PDFInfo
- Publication number
- IE84063B1 IE84063B1 IE2002/0065A IE20020065A IE84063B1 IE 84063 B1 IE84063 B1 IE 84063B1 IE 2002/0065 A IE2002/0065 A IE 2002/0065A IE 20020065 A IE20020065 A IE 20020065A IE 84063 B1 IE84063 B1 IE 84063B1
- Authority
- IE
- Ireland
- Prior art keywords
- mounting assembly
- arm
- clamp arm
- dipper
- adjustable mounting
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 45
- 238000004873 anchoring Methods 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 description 9
- 230000006378 damage Effects 0.000 description 2
- 244000241796 Christia obcordata Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
- E02F3/404—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors comprising two parts movable relative to each other, e.g. for gripping
Description
AN ADJUSTABLE MOUNTING ASSEMBLY FOR MOUNTING A SUPPORT
STAY OF A CLAMP ARM TO A DIPPER ARM OF A BACK ACTER
The present invention relates to an adjustable mounting assembly for mounting a
support stay of a clamp arm to a dipper arm of a back acter.
A clamp arm is an arm which is mounted towards the distal end of a dipper arm,
adjacent a bucket mounting for co-operating with the bucket for clamping one or more
articles between the bucket and the clamp arm. Typically, the clamp arm extends
substantially perpendicularly from the dipper arm adjacent the bucket, and by pivoting
the bucket towards the clamp arm, an article to be carried can be clamped between the
bucket and the clamp arm. Typically, such clamp arms are used in conjunction with the
bucket at the end of the dipper arm for carrying relatively long articles, for example,
poles stanchions, and the like. Mountings for mounting such clamp arms to a dipper arm
are known. Typically, a pivotal anchorage is located adjacent to the distal end of the
dipper arm for pivotally connecting the clamp arm to the dipper arm. A support stay for
supporting the clamp arm in an orientation extending substantially perpendicularly from
the dipper arm extends from the clamp arm intermediate the ends thereof, and is
anchored to the dipper arm by a separate anchorage which is spaced apart longitudinally
along the dipper arm from the clamp arm anchorage. The anchorage for the support stay
may provide a plurality of mounting locations for mounting the support stay for securing
the clamp arm, in a plurality of different orientations extending outwardly of the dipper
arm at different angles, for in turn, accommodating clamping of different size articles
between the clamp arm and a bucket.
However, such known clamp arms, support stays and mounting arrangements suffer
from a number of disadvantages. A particularly serious disadvantage is that when the
clamp arm is not required, and in particular, when the back acter is to operate the bucket
as a digger, it is necessary to either fold away the clamp arm which is time consuming or
to remove at least the support stay, and in many cases both the clamp arm and the
support stay. Otherwise, the clamp arm and the support stay would impair efficient
digging by the bucket. This is a considerable disadvantage, since in general, once
removed from a dipper arm a clamp arm and its associated support stay tend to be lost. It
is also awkward and time consuming to re-mount a removed assembly or to move the
assembly back to the operating position from the folded away position.
There is therefore a need for an adjustable mounting assembly for mounting a support
stay of a clamp arm to a dipper arm of a back acter which overcomes this problem.
The present invention is directed towards providing such a mounting assembly.
According to the invention there is provided an adjustable mounting assembly for
mounting a support stay of a clamp arm to a dipper arm of a back acter, the mounting
assembly comprising an elongated mounting member defining a longitudinally
extending central axis for mounting on the dipper arm with the central axis of the
mounting member extending substantially parallel to the dipper arm, an anchor member
for anchoring the support stay to the mounting member, the anchor member being
selectively engageable with the mounting member at at least two anchor locations
spaced apart longitudinally along the central axis of the mounting member for
respectively supporting the clamp arm in at least one operative orientation with the
clamp arm extending outwardly from the dipper arm for co-operating with a bucket
mounted at the distal end of the dipper arm for clamping an article therebetween, and an
inoperative orientation with the clamp arm and the support stay extending substantially
parallel to the dipper arm (the free end of the clamp arm is proximate the dipper arm).
Generally the inoperative position of the clamp arm is one in which the clamp arm does
not interfere with the working of the bucket. This generally means that the clamp arm
does not impede the digging action of the bucket, for example by catching the ground
close to the site at which the bucket is digging or by impeding the extent to which the
bucket can pivot toward the dipper arm.
In one embodiment of the invention the anchor member is slideable longitudinally along
the mounting member between the respective anchor locations. Preferably, a retaining
means is provided for retaining the anchor member in slideable engagement with the
mounting member.
In another embodiment of the invention a securing means is provided for securing the
anchor member at the respective anchor locations.
In one embodiment of the invention the securing means comprises a securing pin which
is slideable through the anchor member and engageable with a corresponding receiver in
the mounting member. Ideally, the securing pin is slideably carried in a guide bore
extending through the anchor member and is slideable between a disengaged position
disengaged from the receiver and an engaged position engaging the receiver. Preferably,
a follower member extends transversely from the securing pin and is co—operable with a
camming surface on the anchor member for operating the securing pin between the
engaged and the disengaged positions, and ideally, for releasably retaining the securing
pin in the disengaged position.
In one embodiment of the invention the anchor member is selectively engageable with
the mounting member at a plurality of spaced apart anchor locations spaced apart
longitudinally along the mounting member for supporting the clamp arm at a plurality of
respective operative orientations extending outwardly from the dipper at respective
different angles to the dipper arm.
A securing catch may be provided for securing the clamp arm in an inoperative
orientation or configuration. The securing catch may be provided in addition to the
anchoring mechanism described above to help to retain the clamp arm in an inoperative
configuration. In this respect it is desirable that the inoperative position at which the
clamp arm is held is a position at which the clamp arm is held closest to the dipper arm.
In other words it is desirable that in the inoperative position the free end of the clamp
arm (the end distal the point of attachment to the mounting member) is proximate the
dipper arm.
In such a stowed or inoperative configuration the stay arm will be in a substantially
parallel position to the dipper arm. The securing catch aids in prevention of
unintentional deployment of the clamp arm.
It will be appreciated that there a number of ways to configure the securing catch
mechanism. One desirable way of configuring same is to have a catch mechanism with
at least two parts, one part on the mounting assembly (either on the mounting member
or the anchor member) and the other on the clamp arm or in the alternative on the
support stay.
Desirably the catch mechanism is an automatic one which engages the clamp arm in the
inoperative position automatically when the clamp arm is in a desired inoperative
position.
In a particular embodiment the catch mechanism comprises a locking member such as a
pin and a corresponding engaging member or element such as a receiver. In one
arrangement the locking member is slideable through a bore defined in the catch
mechanism and is engageable with a corresponding engaging element such as a receiver
or a locking member mounted on the support stay. Ideally the locking member is biased
towards an engaging position for engaging with the engaging element.
Desirably a retraction mechanism is provided for retracting the locking member from
the engaging position to a release position. A cam surface and a cam follower may
provide the mechanism for retracting the locking member to the release (disengaged
position).
It will be appreciated that the anchoring mechanism described above prevents relative
movement of the mounting member and the anchor member by engaging one to another.
This in turn can lock against relative motion of the clamp arm to the mounting
assembly. However, it is desirable to further secure the clamping arm in the retracted
position. The securing mechanism above desirably locks the mounting member and
either the stay arm of the clamp arm directly.
In one embodiment of the invention there is provided more than one catch mechanism
of the type described above. These may be provided separately as distinct mechanisms
or proximate each other to function (in tandem) as a dual locking mechanism. In one
embodiment at least two catch mechanisms are provided and arranged to operate in
sequence so that one of said catch mechanisms when released allows the clamp arm to
move (toward the operating position) and engage in the second catch mechanism. This
arrangement is advantageous as it allows for the stage-wise release of the clamp arm
from an inoperative position to an operating position (which can then be selected using
the adjustable mounting assembly). This arrangement has been found to be very
satisfactory as it gives the person releasing the clamp arm a sense of the movement
(swing radius) of the clamp arm so that they better anticipate the path the clamp arm will
take to its operation position. This in turn helps to avoid injury and indeed damage to
the clamp arm were it to fall heavily toward the operating position which might
otherwise occur.
When the clamp arm is moved toward the inoperative orientation it is desirable that the
catch mechanism automatically engages when the clamp arm is in a desired position. In
the dual locking engagement the clamp will first encounter one locking mechanism and
then the other. It will be appreciated that where dual catch mechanisms are employed
two engaging elements and one locking member could be employed or vice versa. It is
not necessary that the each mechanism comprise an engaging element and
corresponding locking member.
The double (or dual) catch mechanism can be considered a two stage release mechanism
and is particularly desirable that it is arranged to engage the stay arm to the mounting
assembly and more particularly to the mounting member of the mounting assembly. In
one preferred arrangement the engaging element is a projection on the stay arm with
which the engaging member engages.
In a further embodiment of the invention the mounting assembly is mountable on the
dipper arm at a location on the dipper arm such that a connecting anchorage for
connecting the clamp arm to the dipper arm is located between the mounting assembly
and the distal end of the dipper arm, and preferably, when the clamp arm is in the
inoperative orientation the clamp arm extends from the connecting anchorage towards
the mounting member and advantageously, the support stay extends from the mounting
assembly towards the connecting anchorage of the clamp arm.
In another embodiment of the invention a connecting anchorage is provided on the
mounting member for pivotally connecting the clamp arm to the dipper arm, the
connecting anchorage being provided longitudinally spaced apart from the anchor
locations.
In one embodiment of the invention the mounting member defines an elongated track
extending parallel to the central axis for slideably carrying the anchor member between
the respective anchor locations. The track may comprise one or more grooves in which
one or more runners on the anchor member engage and travel or may comprise grips
which engage (optionally a top surface 0D the anchor member.
In a further embodiment of the invention the mounting assembly comprises the support
stay, and in a further embodiment of the invention the clamp arm is provided, the clamp
arm being pivotally connected to the connecting anchorage and to the support stay, and
the support stay being pivotally connected to the anchor member.
Further the invention provides a dipper arm comprising the mounting assembly
according to the invention mounted on the dipper arm.
The invention will be more clearly understood from the following description of an
embodiment thereof which is given by way of example only with reference to
accompanying drawings, in which;
Figure 1 is a side elevational View of the dipper arm, according to the invention of a
back acter having a clamp arm mounted thereto by an adjustable mounting assembly
also according to the invention,
Figure 2 is a view similar to Figure 1 of the dipper arm illustrating the clamp arm in a
different orientation,
Figure 3 is a side elevational view of the adjustable mounting assembly according to the
invention illustrated in Figs. 1 and 2,
Figure 4 is a plan view of the adjustable mounting assembly of Figure 3,
Figure 5 is an end View of the adjustable mounting assembly of Figure 3,
Figure 6 is an exploded side elevational View of a portion of the adjustable mounting
assembly of Figure 3,
Figure 7 is a side elevational View of the clamp arm, of the dipper arm of Figure 1,
Figure 8 (a), (b) and (c) are front elevational Views of different sizes of clamp
arms for use with the adjustable mounting assembly of Figure 3,
Figure 9 is a perspective view of an alternative mounting assembly according to one
embodiment of the invention from one side thereof,
Figure 10 is a perspective view of the mounting assembly of Figure 9 from the other
side thereof,
Figure 11 is an exploded perspective View of an anchor member of the adjustable
mounting assembly of Figure 9,
Figure 12 is a perspective View of a dipper arm with the mounting assembly of Figure 9
attached,
Figure 13 is an enlarged partial view of Figure l2,
Figure 14 is a perspective view of part of a dual catch mechanism according to one
embodiment of the invention,
Figure 15 is side elevation of the catch mechanism of Figure 14, and
Figure l6 is side elevation of the catch mechanism of Figure l4 schematically
representing the engagement of the locking members and receivers.
Referring to the drawings there is illustrated a dipper arm according to the invention
indicated generally by the reference numeral 1 of a back acter (not shown). A digger
bucket 2 is pivotally connected to the distal end of the dipper arm 1 and is pivotal in
conventional fashion in the direction of the arrows A and B under the action of an
hydraulic ram 3 through linkages 4 mounted on the dipper arm 1.
An adjustable mounting assembly according to the invention indicated generally by the
reference numeral 5 is secured to the dipper arm 1 for mounting a clamp arm 7 on the
dipper arm 1 so that the clamp arm 7 co-operates with the digger bucket 2 for clamping
an article therebetween. The mounting assembly 5 comprises an elongated plate member
which defines a longitudinally extending central axis 10.
Mounting slots 11 are provided in the plate member 9 for accommodating welds
therethrough for securing the mounting assembly 5 to the dipper arm 1. A connecting
anchorage 12 mounted on the plate member 9 pivotally connects the clamp arm 7 to the
mounting assembly 5. A pair of longitudinally extending spaced apart side members 14
extend upwardly front the plate member 9 and define with the plate member 9 an
elongated track 15 which slideably engages an anchor member 17 for anchoring a
support stay 18 for in turn supporting the clamp arm 7. The support stay 18 and the
clamp arm 7 are pivotally connected at 16.
The anchor member 17 comprises a carrier plate 19 which carries a pivotal anchor
bracket 20 for pivotally engaging the support stay 18. The carrier plate 19 is slideable
longitudinally in the track 15, and is engageable with the track 15 at a plurality of spaced
apart anchor locations 21 for co operating with the support stay 18 for supporting the
clamp arm 7 in a plurality of operative orientations extending outwardly of the dipper
arm 1, see Figure 1 and in an inoperative orientation, see Figure 2 with the clamp arm 7
and the support stay 18 extending substantially parallel to the dipper arm 1.
A retaining means for retaining the carrier plate 19 in the track 15 comprises a pair of
longitudinally extending retaining members 24 which extend inwardly from the side
members 14 and define with the side members 14 and the plate member 9 the track 15.
A securing means for securing the carrier plate 19 and in turn the anchor member 17 in
each of the anchor locations 21 comprises a securing pin 25 which is slideably carried in
a guide bore 32 extending through tubular guide member 26 and is slideable between a
disengaged position illustrated in Figure 5 to an engaged position with the securing pin
engaging a corresponding receiver opening 27 in the selected anchor location 21. A
compression spring 28 located in the guide member 26 acts between a shoulder 30 on
the securing pin 25 and a shoulder 31 within the bore 32 of the guide member 26 for
urging the securing pin 25 into engaged position engaging one of the receiver openings
27 in the selected anchor location 21. A cam follower 35 extending transversely from
the securing pin 25 co—operates with a camming surface 36 at the end of the guide
member 26 for urging the securing pin 25 between the engaged and disengaged
positions as the securing pin 25 is rotated through 1800 . A handle 38 extending
transversely from the securing pin 25 is provided for rotating the securing pin 25 in the
bore 32.
Referring now to Figures 9 to 16 there is shown other embodiments of the anchor
member 17A. As best seen from Figure 11 though also in Figures 9 and 10 in one
alternative embodiment of the invention the mounting member comprises a carrier plate
19A which has a pair of inwardly facing grips 24A together which define a runner with
a mouth 22 to receive a track. The anchor member 17A fits to and is slideable
longitudinally on a track 23 fonned on the mounting member. The track 23 has a pair of
grooves 29 which mate with the runner arrangement described above. The track 23 only
permits longitudinal movement of the anchor member 17A. In general the remaining
features of the device shown are similar to those described above.
It will be noted however that in Figures 9 through 16 the mounting assembly 5A further
included a catch mechanism 40. The mechanism 40 enables a user to store the clamp
arm 7 in a inoperative storage position. In the embodiment of Figures 9, 10 and 13 the
catch mechanism shown is a single catch mechanism. In Figures 14 to 16 the catch
mechanism is a dual mechanism.
The mechanism 40 comprises a bracket 41 fixed to the plate 9, a tubular lock pin guide
42 and a lock pin 43 formed to pass through the tubular lock pin guide 42. The lock pin
43 is spring mounted so as to bias the lock pin 43 toward an engaging position in a
manner which will be described in more detail below.
The mechanism will now be described in detail with reference to Figures 14 through 16
though the mechanism of Figures 9, 10 and 13 works analogously.
A retaining pin 46 is inserted through a bore in the top of the lock pin 43 in a dowel
arrangement. One of the main functions of the retaining pin 46 is to act as a grip on
which a tool 45 can act as will be described below.
Also provided is a pin lock lever tool 45 having a handle with a forked (or bifurcated)
head 46 which engages underneath the retaining pin 46. The tool 45, in particular a
notch 60 formed in the forked head thereon also engages with a butterfly wing
protrusion or grip 44 on the tubular lock pin guide 42. The tool 45 can then be used to
exert pressure upward on the pin 46 thus retracting the pin 43 toward a release position
as illustrated in Figure 15 where the effect of a downward force applied to the tool is
shown in dashed outline. A further possible use of the tool 45 is to engage with the pin
of the anchor adjustment mechanism. The end 47 thereof on the handle could be
provided with a notch or groove that will engage with the pin and allow it to be turned.
()nce the catch mechanism has been released then the adjustable anchor mechanism can
be used to hold the clamp arm in the desired position as described above.
As best seen from Figures 13 (single latch mechanism) and 16 (a dual latch mechanism)
a member 47 is attached to the support stay 18. When the anchor member is moved
toward the inoperative position in which it is to be retained the members 47 is pressed
against the dual lock pins 43. The pins 43 being spring loaded allow the bevelled surface
48 of the member 47 to push past by at least partially retracting and then engages again
with the member 47 by moving outward and locking behind the member 47 and in
particular a flat abutment surface 49 thereon.
A similar action takes place with the second member 48 and the second pin 50 thus
forming a dual locking mechanism as best seen from Figure 16 where the double lock
position is shown.
Releasing the stay arm 18 (and thus also the clamp arm) is achieved using the tool 45 as
was described above — first retracting pin 43 and the pin 50.
It may be desirable that the catch mechanism be locked against accidental release. This
may be achieved by locking the movement of the pin 43 and or the pin 50. For example
the tubular pin lock guide or barrel 42 can also be arranged to lock the pin 43 and/or 50
in the extended position. One method of achieving this is to have rotation of the barrel
lock movement of the pin. Reversing the rotational movement will release the pin.
In use, with the mounting assembly 5 secured to the dipper arm 1, the clamp arm 7 is
ready for use. When it is desired to use the clamp arm 7 for clamping an article between
itself and the digger bucket 2 the anchor member 17 is urged along the track 15 in the
direction of the arrow C until the clamp arm 7 extends from the dipper arm 1 in a
desired outwardly extending operative orientation. When the clamp arm 7 is at the
desired operative orientation the securing pin 25 is urged from the disengaged to the
engaged position by rotating the securing pin 25 through 180° for engaging the receiver
opening 27 in the selected anchor location 21. With the securing pin 25 secured In the
corresponding receiver opening 27 the clamp arm 7 is ready for use.
When the clamp arm 7 is not required the securing pin 25 is disengaged from the
receiver opening 27 by rotating the securing pin 25 through 180°, so that the cam
follower 35 co—operating with the camming surface 36 urges the securing pin 25 from
the engaged to the disengaged position. The anchor member 17 is then urged along the
track 15 in the direction of the arrow D until the anchor member 17 is in the last anchor
location 21b. The securing pin 25 is rotated through 180° for engaging the
corresponding receiver opening 27. With the anchor member 17 secured in the last
anchor location 21b the clamp arm 7 is in the inoperative orientation extending
substantially parallel to the dipper arm in a direction from the connecting anchorage 12
towards the anchor member 17.
Additionally, the support stay 18 also lies substantially parallel to the dipper arm 1 and
extends from the anchor member 17 towards the connecting anchorage 12. Thus, in the
inoperative position the clamp arm, 7 and the support stay 18 do not impair normal
digging by the digger bucket 2, and there is therefore no need to remove the clamp arm 7
nor is there a need to remove the support stay 18. Accordingly the mounting assembly
according to the invention overcomes the problems of prior art mountings for carrier
.IT1’1S.
Referring now in particular to Figs. 8 (a), (b) and (c) clamp arms 7 of different sizes
which may be used in conjunction with the mounting assembly 5 are illustrated. A
clamp arm of a size corresponding to the size of the digger bucket would normally be
selected for use.
The invention is not limited to the embodiment hereinbefore described which may be
varied in construction and detail.
It will be appreciated that certain features of the invention, which are, for clarity,
described in the context of separate embodiments, may also be provided in combination
in a single embodiment. Conversely, various features of the invention which are, for
brevity, described in the context of a single embodiment, may also be provided
separately or in any suitable subcombination.
The words “comprises/comprising” and the words “having/including” when used herein
with reference to the present invention are used to specify the presence of stated
features, integers, steps or components but does not preclude the presence or addition of
one or more other features, integers, steps, components or groups thereof.
Claims (24)
1. An adjustable mounting assembly for mounting a support stay of a clamp arm to a dipper arm of a back acter, the mounting assembly comprising: an elongated mounting member defining a longitudinally extending central axis for mounting on the dipper arm with the central axis of the mounting member extending substantially parallel to the dipper arm, and an anchor member for anchoring the support stay to the mounting member, the anchor member being selectively engageable with the mounting member at at least two anchor locations spaced apart longitudinally along the central axis of the mounting member for respectively supporting the clamp arm in at least one operative orientation with the clamp arm extending outwardly from the dipper arm for co-operating with a bucket mounted at the distal end of the dipper arm for clamping an article therebetween, and an inoperative orientation with the clamp arm and the support stay extending substantially parallel to the dipper EIITTI.
2. An adjustable mounting assembly as claimed in claim 1 wherein the anchor member is slideable longitudinally along the mounting member between the respective anchor locations.
3. An adjustable mounting assembly as claimed in claims 1 or 2 wherein a retaining means is provided for retaining the anchor member in slideable engagement with the mounting member.
4. An adjustable mounting assembly as claimed in claims 1, 2 or 3 wherein a securing means is provided for securing the anchor member at the respective anchor locations. 15
5. An adjustable mounting assembly according to claim 4 wherein the securing means comprises a securing pin which is slideable through the anchor member and engageable with a corresponding receiver in the mounting member.
6. An adjustable mounting assembly according to claim 5 wherein a guide bore, through which the securing pin is slideably carried, extends through the anchor member and is slideable between a disengaged position disengaged from the receiver and an engaged position for engaging the receiver.
7. An adjustable mounting assembly according to claim 6 wherein a follower member extends transversely from the securing pin and is co-operable with a camming surface on the anchor member for operating the securing pin between the engaged and the disengaged positions.
8. An adjustable mounting assembly according to claim 5 wherein the securing pin releasably retains the securing pin in the disengaged position.
9. An adjustable mounting assembly according to any preceding claim wherein the anchor member is selectively engageable with the mounting member at a plurality of spaced apart anchor locations spaced apart longitudinally along the mounting member for supporting the clamp arm at a plurality of respective operative orientations extending outwardly from the dipper at respective different angles to the dipper arm.
10. An adjustable mounting assembly according to any preceding claim wherein the assembly further comprises a securing catch for securing the clamp arm in an inoperative orientation.
ll. An adjustable mounting assembly according to claim 10 wherein the securing catch mechanism comprises at least two parts one part on the mounting assembly the other on the clamp arm or the support stay.
12. An adjustable mounting assembly according to claim 10 wherein the securing catch mechanism comprises at least two catch mechanisms.
13. An adjustable mounting assembly according to any one of claims l0 to 12 wherein the securing catch mechanism automatically engages when the clamp arm is in a desired inoperative position.
14. An adjustable mounting assembly as claimed in any of the preceding claims wherein more than one inoperative storage securing means is provided each individually restricting the movement of the support stay from an inoperative position.
15. An adjustable mounting assembly as claimed in any of the preceding claims wherein the adjustable mounting assembly is mountable on the dipper arm at a location on the dipper arm such that a connecting anchorage for connecting the clamp arm to the dipper arm is located between the mounting assembly and the distal end of the dipper EIITH.
16. An adjustable mounting assembly as claimed in claim 15 wherein when the clamp arm is in the inoperative orientation the clamp arm extends from the connecting anchorage towards the mounting member.
17. An adjustable mounting assembly as claimed in claim 16 wherein in the inoperative position the support stay extends from the mounting assembly towards the connecting anchorage of the clamp arm.
l8. An adjustable mounting assembly as claimed in any of the preceding claims wherein a connecting anchorage is provided on the mounting member for pivotally connecting the clamp arm to the dipper arm, the connecting anchorage being provided longitudinally spaced apart from the anchor locations.
l9. An adjustable mounting assembly as claimed in any of the preceding claims wherein the mounting member defines an elongated track extending parallel to the central axis for slideably carrying the anchor member between the respective anchor locations.
20. An adjustable mounting assembly as claimed in any of the preceding claims wherein the mounting assembly further comprises at least one of the group consisting of a support stay and a clamp arm.
21. An adjustable mounting assembly as claimed in claim 20 comprising both a support stay and a clamp arm, the clamp arm for pivotal connection to the connecting anchorage and to the support stay, and the support stay for pivotal connection to the anchor member.
22. A dipper arm comprising the mounting assembly according to any preceding claim mounted on the dipper arm.
23. A hydraulically operated machine having the dipper arm of claim 22.
24. An adjustable mounting assembly substantially as hereinbefore described and/or as illustrated in the accompanying drawings. TOMKINS & CO.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE2002/0065A IE84063B1 (en) | 2002-01-31 | An adjustable mounting assembly for mounting a support stay of a clamp arm to a dipper arm of a back acter |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IEIRELAND31/01/2001S2001/0079 | |||
IE20010079A IES20010079A2 (en) | 2001-01-31 | 2001-01-31 | An adjustable mounting assembly for mounting a support stay of a clamp arm to a dipper arm of a back acter |
IE2002/0065A IE84063B1 (en) | 2002-01-31 | An adjustable mounting assembly for mounting a support stay of a clamp arm to a dipper arm of a back acter |
Publications (2)
Publication Number | Publication Date |
---|---|
IE20020065A1 IE20020065A1 (en) | 2002-08-07 |
IE84063B1 true IE84063B1 (en) | 2005-11-16 |
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