CA2886709A1 - Quick coupler for reversible coupling - Google Patents
Quick coupler for reversible coupling Download PDFInfo
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- CA2886709A1 CA2886709A1 CA2886709A CA2886709A CA2886709A1 CA 2886709 A1 CA2886709 A1 CA 2886709A1 CA 2886709 A CA2886709 A CA 2886709A CA 2886709 A CA2886709 A CA 2886709A CA 2886709 A1 CA2886709 A1 CA 2886709A1
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- lock member
- quick coupler
- implement
- actuator
- locking aperture
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Abstract
A quick coupler for reversibly coupling an actuating arm of a vehicle to an implement having a hinge plate assembly, the hinge plate assembly comprising front and rear receptacles, the hinge plate assembly further defining a locking aperture comprising a narrow entry expanding into a wider portion. The quick coupler includes a link assembly, at least one protrusion, a lock member movably connected relative to the link assembly and an actuator operably connected to the lock member and adapted to move the lock member between an extended and retracted positions. The front and rear receptacles are shaped to receive the at least one protrusion and the locking aperture is shaped for removable engagement with the lock member for coupling and decoupling the actuating arm from the implement.
Description
QUICK COUPLER FOR REVERSIBLE COUPLING
Field of the invention:
The present invention relates to coupling devices. More particularly, the present invention relates to a universal quick coupler for use with equipment of various types of construction and earth-moving machines in a front load configuration or a backhoe configuration.
Background of the invention:
Quick couplers are commonly used for securing construction tools and attachments such as buckets, impact hammers, etc., to a dipping or actuating arm of a vehicle or a machine. Couplers allow rapid change of the attachments on the vehicle or the machine. Known to the Applicant is US patent No.
5,431,528 issued on July 11th, 1995.
There are many variations in the design of quick couplers. For example, some couplers are designed to pick up a range of attachments by clamping onto mounting pins while others are designed to work only with attachments designed to suit a dedicated coupler. Other designs may also include reversible couplers.
Couplers are usually ranked by categories according to the force of the vehicle or machine. There are hundreds or thousands of different attachments that can be used for each category depending on the task required from the operator.
However, there is a need for a quick coupler to rapidly secure the various different attachments in a reversible configuration with a single vehicle or machine.
Hence, in light of the aforementioned, there is a need for an improved system which, by virtue of its design and components, would be able to overcome some of the above-discussed prior art concerns.
,
Field of the invention:
The present invention relates to coupling devices. More particularly, the present invention relates to a universal quick coupler for use with equipment of various types of construction and earth-moving machines in a front load configuration or a backhoe configuration.
Background of the invention:
Quick couplers are commonly used for securing construction tools and attachments such as buckets, impact hammers, etc., to a dipping or actuating arm of a vehicle or a machine. Couplers allow rapid change of the attachments on the vehicle or the machine. Known to the Applicant is US patent No.
5,431,528 issued on July 11th, 1995.
There are many variations in the design of quick couplers. For example, some couplers are designed to pick up a range of attachments by clamping onto mounting pins while others are designed to work only with attachments designed to suit a dedicated coupler. Other designs may also include reversible couplers.
Couplers are usually ranked by categories according to the force of the vehicle or machine. There are hundreds or thousands of different attachments that can be used for each category depending on the task required from the operator.
However, there is a need for a quick coupler to rapidly secure the various different attachments in a reversible configuration with a single vehicle or machine.
Hence, in light of the aforementioned, there is a need for an improved system which, by virtue of its design and components, would be able to overcome some of the above-discussed prior art concerns.
,
2 Summary of the invention:
The object of the present invention is to provide a device which, by virtue of its design and components, satisfies some of the above-mentioned needs and is thus an improvement over other related coupling devices known in the prior art.
In accordance with the present invention, the above mentioned object is achieved, as will be easily understood, by a quick coupler such as the one briefly described herein and such as the one exemplified in the accompanying drawings.
According to a first aspect of the present invention, there is provided a quick coupler for reversibly coupling an actuating arm of a vehicle to an implement having a hinge plate assembly, the hinge plate assembly comprising front and rear receptacles, the hinge plate assembly further defining a locking aperture comprising a narrow entry expanding into a wider portion, the coupler comprising:
a link assembly comprising two opposite plates, each plate having at least one aperture;
at least one protrusion mounted on each plate and adapted to engage the front receptacle for a front load configuration or the rear receptacle for a backhoe configuration;
a lock member movably connected relative to the link assembly, said lock member movable between an extended position and a retracted position; and an actuator operably connected to the lock member and adapted to move the lock member between its extended and retracted positions, wherein the front and rear receptacles are shaped to receive the at least one protrusion, the locking aperture is shaped for removable engagement with the lock member and, wherein in the extended positon, the lock member engages the locking aperture thereby coupling the actuating arm to the implement and wherein in the retracted position, the lock member disengages the locking aperture thereby decoupling the actuating arm from the implement.
, ,
The object of the present invention is to provide a device which, by virtue of its design and components, satisfies some of the above-mentioned needs and is thus an improvement over other related coupling devices known in the prior art.
In accordance with the present invention, the above mentioned object is achieved, as will be easily understood, by a quick coupler such as the one briefly described herein and such as the one exemplified in the accompanying drawings.
According to a first aspect of the present invention, there is provided a quick coupler for reversibly coupling an actuating arm of a vehicle to an implement having a hinge plate assembly, the hinge plate assembly comprising front and rear receptacles, the hinge plate assembly further defining a locking aperture comprising a narrow entry expanding into a wider portion, the coupler comprising:
a link assembly comprising two opposite plates, each plate having at least one aperture;
at least one protrusion mounted on each plate and adapted to engage the front receptacle for a front load configuration or the rear receptacle for a backhoe configuration;
a lock member movably connected relative to the link assembly, said lock member movable between an extended position and a retracted position; and an actuator operably connected to the lock member and adapted to move the lock member between its extended and retracted positions, wherein the front and rear receptacles are shaped to receive the at least one protrusion, the locking aperture is shaped for removable engagement with the lock member and, wherein in the extended positon, the lock member engages the locking aperture thereby coupling the actuating arm to the implement and wherein in the retracted position, the lock member disengages the locking aperture thereby decoupling the actuating arm from the implement.
, ,
3 In some implementations, the quick coupler comprises the hinge plate assembly.
In some implementations, at least one aperture of each plate is transversely aligned with an adjacent at least one aperture of an adjacent plate.
In some implementations, the at least one protrusion is circular.
In some implementations, the actuator comprises a rod connected to the lock member to move said lock member between its extended and retracted positions.
In some implementations, the actuator is a mechanical actuator.
In some implementations, the actuator further comprises a biasing element biasing the position of the lock member towards a default position.
In some implementations, the actuator is a hydraulic actuator.
In some implementations, the opposite plates are substantially parallel.
In some implementations, the link assembly further comprises a flat surface connected to the opposite plates and adapted to rest against the implement.
In some implementations, the link assembly further comprises a stopper mounted on the opposite plates guiding the lock member into the locking aperture.
The objects, advantages and features of the present invention will become more apparent upon reading of the following non-restrictive description of preferred embodiments thereof, given for the purpose of exemplification only, with reference to the accompanying drawings.
Brief description of the drawings:
Figure 1A is a perspective view of a coupler mounted on an implement according to an embodiment of the present invention.
In some implementations, at least one aperture of each plate is transversely aligned with an adjacent at least one aperture of an adjacent plate.
In some implementations, the at least one protrusion is circular.
In some implementations, the actuator comprises a rod connected to the lock member to move said lock member between its extended and retracted positions.
In some implementations, the actuator is a mechanical actuator.
In some implementations, the actuator further comprises a biasing element biasing the position of the lock member towards a default position.
In some implementations, the actuator is a hydraulic actuator.
In some implementations, the opposite plates are substantially parallel.
In some implementations, the link assembly further comprises a flat surface connected to the opposite plates and adapted to rest against the implement.
In some implementations, the link assembly further comprises a stopper mounted on the opposite plates guiding the lock member into the locking aperture.
The objects, advantages and features of the present invention will become more apparent upon reading of the following non-restrictive description of preferred embodiments thereof, given for the purpose of exemplification only, with reference to the accompanying drawings.
Brief description of the drawings:
Figure 1A is a perspective view of a coupler mounted on an implement according to an embodiment of the present invention.
4 Figure 1B is another view of what is shown in Figure 1A.
Figure 2A is a perspective view a hinge plate assembly mounted on an implement according to an embodiment of the present invention.
Figure 2B is another view of what is shown in Figure 2A.
Figure 2C is a perspective view of the hinge plate assembly shown in Figures 2A and 2B.
Figure 3A is a perspective view of a coupler according to an embodiment of the present invention.
Figure 3B is another view of what is shown in Figure 3A.
Figure 4 is a perspective view of a stopper according to an embodiment of the present invention.
Figure 5 is a perspective view, fragmented, of a coupler according to an embodiment of the present invention.
Figure 6 is a perspective view of a lock member according to an embodiment of the present invention.
Figure 7A is a side view of a mechanically actuated coupler according to an embodiment of the present invention.
Figure 7B is a side view of a hydraulically actuated coupler according to an embodiment of the present invention.
Figure 8A is a perspective view of a coupler mounted on an implement in a front load configuration according to an embodiment of the present invention.
Figure 8B is a perspective view of the coupler shown in Figure 8A in a backhoe configuration.
, , Detailed description of preferred embodiments of the invention:
In the following description, the same numerical references refer to similar elements. Furthermore, for the sake of simplicity and clarity, namely so as to not unduly burden the figures with several reference numbers, not all figures contain
Figure 2A is a perspective view a hinge plate assembly mounted on an implement according to an embodiment of the present invention.
Figure 2B is another view of what is shown in Figure 2A.
Figure 2C is a perspective view of the hinge plate assembly shown in Figures 2A and 2B.
Figure 3A is a perspective view of a coupler according to an embodiment of the present invention.
Figure 3B is another view of what is shown in Figure 3A.
Figure 4 is a perspective view of a stopper according to an embodiment of the present invention.
Figure 5 is a perspective view, fragmented, of a coupler according to an embodiment of the present invention.
Figure 6 is a perspective view of a lock member according to an embodiment of the present invention.
Figure 7A is a side view of a mechanically actuated coupler according to an embodiment of the present invention.
Figure 7B is a side view of a hydraulically actuated coupler according to an embodiment of the present invention.
Figure 8A is a perspective view of a coupler mounted on an implement in a front load configuration according to an embodiment of the present invention.
Figure 8B is a perspective view of the coupler shown in Figure 8A in a backhoe configuration.
, , Detailed description of preferred embodiments of the invention:
In the following description, the same numerical references refer to similar elements. Furthermore, for the sake of simplicity and clarity, namely so as to not unduly burden the figures with several reference numbers, not all figures contain
5 references to all the components and features, and references to some components and features may be found in only one figure, and components and features of the present invention illustrated in other figures can be easily inferred therefrom. The embodiments, geometrical configurations, materials mentioned and/or dimensions shown in the figures are optional, and are given for exemplification purposes only.
Furthermore, although the present invention may be used with various objects, such as buckets, for example, it is understood that it may be used with other tool and attachments. For this reason, expressions such as "bucket", "impact hammer", "tool", "attachment", etc. as used herein should not be taken as to limit the scope of the present invention to these machine attachments in particular. These expressions encompass all other kinds of attachments, tools and/or purposes with which the present invention could be used and may be useful, as can be easily understood.
As shown in Figures 1 to 8, there is provided a quick coupler 10 for reversibly coupling an actuating arm of a vehicle or a machine to an implement 12, such as a bucket. It is understood that the quick coupler 10 may also be used with other attachments, such as an impact hammer or a grapple, as known by a person skilled in the art.
In some implementations, the quick coupler 10 includes a hinge plate assembly 14, composed of two plates 40, as the one shown in Figure 2C.
Alternatively, the hinge plate assembly 14 can be provided with the implement 12. In the latter case, the hinge plate assembly 14 may be connected to the implement 12 by welding or other connection means as known by a person skilled in the art. The hinge plate assembly 14 comprises front 16 and rear 18
Furthermore, although the present invention may be used with various objects, such as buckets, for example, it is understood that it may be used with other tool and attachments. For this reason, expressions such as "bucket", "impact hammer", "tool", "attachment", etc. as used herein should not be taken as to limit the scope of the present invention to these machine attachments in particular. These expressions encompass all other kinds of attachments, tools and/or purposes with which the present invention could be used and may be useful, as can be easily understood.
As shown in Figures 1 to 8, there is provided a quick coupler 10 for reversibly coupling an actuating arm of a vehicle or a machine to an implement 12, such as a bucket. It is understood that the quick coupler 10 may also be used with other attachments, such as an impact hammer or a grapple, as known by a person skilled in the art.
In some implementations, the quick coupler 10 includes a hinge plate assembly 14, composed of two plates 40, as the one shown in Figure 2C.
Alternatively, the hinge plate assembly 14 can be provided with the implement 12. In the latter case, the hinge plate assembly 14 may be connected to the implement 12 by welding or other connection means as known by a person skilled in the art. The hinge plate assembly 14 comprises front 16 and rear 18
6 receptacles and further define a locking aperture 20 having a narrow entry 22 expanding into a wider portion 24.
In some implementations, the quick coupler 10 includes a link assembly 26, at least one protrusion 28, a lock member 30 and an actuator 32.
The link assembly 26 comprises two opposite plates 34, each plate 34 having at least one aperture 36. The apertures 36 can be used to connect the quick coupler 10 with the actuating arm. The apertures 36 can have circular and/or other shapes. As known by a person skilled in the art, the shape, size and location of the apertures 36 will depend on the design of the actuating arm.
According to an embodiment, the aperture 36 of each plate 34 is transversely aligned with an adjacent aperture 36 of an adjacent plate 34. The plates 34 may have different shapes and sizes as well as different materials. Preferably, the opposite plates 34 are substantially parallel. The plates 34 also support the at least one protrusion 28. The link assembly 26 can further include a flat surface 38 connected to the opposite plates 34 and adapted to rest against the implement 12. The flat surface 38 allows for a greater surface contact with the implement 12 and thus creates more stability and support when operating the excavation machine or vehicle.
One protrusion 28 is mounted on each plate 34 and adapted to engage the zo front receptacle 16 for a front load configuration, as shown in Figure 8A, and the rear receptacle 18 for a backhoe configuration, as shown in Figure 8B. The protrusions 28 can have different shapes, preferably they have a circular shape.
They can also be made of a rod that is simply insertable through aligned openings, such as the apertures 36 on each plate 34. In operation, the quick coupler 10 is locked by the engagement of the protrusions 28 with the receptacles 16 or 18 and by extending the lock member 30 to engage the locking aperture 20.
The lock member 30 is movably connected relative to the link assembly 26.
The lock member 30 is movable between an extended position 80 and a
In some implementations, the quick coupler 10 includes a link assembly 26, at least one protrusion 28, a lock member 30 and an actuator 32.
The link assembly 26 comprises two opposite plates 34, each plate 34 having at least one aperture 36. The apertures 36 can be used to connect the quick coupler 10 with the actuating arm. The apertures 36 can have circular and/or other shapes. As known by a person skilled in the art, the shape, size and location of the apertures 36 will depend on the design of the actuating arm.
According to an embodiment, the aperture 36 of each plate 34 is transversely aligned with an adjacent aperture 36 of an adjacent plate 34. The plates 34 may have different shapes and sizes as well as different materials. Preferably, the opposite plates 34 are substantially parallel. The plates 34 also support the at least one protrusion 28. The link assembly 26 can further include a flat surface 38 connected to the opposite plates 34 and adapted to rest against the implement 12. The flat surface 38 allows for a greater surface contact with the implement 12 and thus creates more stability and support when operating the excavation machine or vehicle.
One protrusion 28 is mounted on each plate 34 and adapted to engage the zo front receptacle 16 for a front load configuration, as shown in Figure 8A, and the rear receptacle 18 for a backhoe configuration, as shown in Figure 8B. The protrusions 28 can have different shapes, preferably they have a circular shape.
They can also be made of a rod that is simply insertable through aligned openings, such as the apertures 36 on each plate 34. In operation, the quick coupler 10 is locked by the engagement of the protrusions 28 with the receptacles 16 or 18 and by extending the lock member 30 to engage the locking aperture 20.
The lock member 30 is movably connected relative to the link assembly 26.
The lock member 30 is movable between an extended position 80 and a
7 retracted position 90. When connecting the quick coupler 10 to the hinge plate assembly 14, the lock member 30 is guided into the locking aperture 20 through the narrow entry 22. According to an embodiment, there is provided a stopper to guide the lock member 30 into the locking aperture 20 and to block horizontal movement between the quick coupler 10 and the hinge plate assembly 14. The stopper 42 may have a polygonal shape, as shown in Figure 4, a circular or a combination between straight and curved segments. The actuator 32 is adapted to move the lock member 30 between its extended position 80 and its retracted position 90.
The actuator 32 is operably connected to the lock member 30. According to an embodiment, the actuator 32 moves the lock member 30 through a connector connected between the actuator 32 and the lock member 30. The connector may comprise a rod or any other connector as known to a person skilled in the art.
The actuator 32 can be operated by different sources of energy, such as mechanical, hydraulic, electrical, pneumatic, etc. Figure 7A illustrates a mechanical actuator 44. In this configuration, the operator will manually rotate a screw type rod to displace the lock member 30. According to an embodiment, the mechanical actuator 44 further comprises a biasing element 46, such as a spring, to bias the position of the lock member 30 towards a default position.
Alternatively, Figure 7B illustrates a hydraulic actuator 48. The hydraulic actuator can be connected to the excavation machine or vehicle for hydraulic, pneumatic or electrical power.
Of course, numerous modifications could be made to the above-described embodiments without departing from the scope of the invention, as defined in the appended claims.
The actuator 32 is operably connected to the lock member 30. According to an embodiment, the actuator 32 moves the lock member 30 through a connector connected between the actuator 32 and the lock member 30. The connector may comprise a rod or any other connector as known to a person skilled in the art.
The actuator 32 can be operated by different sources of energy, such as mechanical, hydraulic, electrical, pneumatic, etc. Figure 7A illustrates a mechanical actuator 44. In this configuration, the operator will manually rotate a screw type rod to displace the lock member 30. According to an embodiment, the mechanical actuator 44 further comprises a biasing element 46, such as a spring, to bias the position of the lock member 30 towards a default position.
Alternatively, Figure 7B illustrates a hydraulic actuator 48. The hydraulic actuator can be connected to the excavation machine or vehicle for hydraulic, pneumatic or electrical power.
Of course, numerous modifications could be made to the above-described embodiments without departing from the scope of the invention, as defined in the appended claims.
Claims (11)
1. A quick coupler for reversibly coupling an actuating arm of a vehicle to an implement having a hinge plate assembly, the hinge plate assembly comprising front and rear receptacles, the hinge plate assembly further defining a locking aperture comprising a narrow entry expanding into a wider portion, the coupler comprising:
a link assembly comprising two opposite plates, each plate having at least one aperture;
at least one protrusion mounted on each plate and adapted to engage the front receptacle for a front load configuration or the rear receptacle for a backhoe configuration;
a lock member movably connected relative to the link assembly, said lock member movable between an extended position and a retracted position;
and an actuator operably connected to the lock member and adapted to move the lock member between its extended and retracted positions, wherein the front and rear receptacles are shaped to receive the at least one protrusion, the locking aperture is shaped for removable engagement with the lock member and, wherein in the extended positon, the lock member engages the locking aperture thereby coupling the actuating arm to the implement and wherein in the retracted position, the lock member disengages the locking aperture thereby decoupling the actuating arm from the implement.
a link assembly comprising two opposite plates, each plate having at least one aperture;
at least one protrusion mounted on each plate and adapted to engage the front receptacle for a front load configuration or the rear receptacle for a backhoe configuration;
a lock member movably connected relative to the link assembly, said lock member movable between an extended position and a retracted position;
and an actuator operably connected to the lock member and adapted to move the lock member between its extended and retracted positions, wherein the front and rear receptacles are shaped to receive the at least one protrusion, the locking aperture is shaped for removable engagement with the lock member and, wherein in the extended positon, the lock member engages the locking aperture thereby coupling the actuating arm to the implement and wherein in the retracted position, the lock member disengages the locking aperture thereby decoupling the actuating arm from the implement.
2. A quick coupler as claimed in claim 1, wherein the at least one aperture of each plate is transversely aligned with an adjacent at least one aperture of an adjacent plate.
3. A quick coupler as claimed in claim 1 or 2, wherein the at least one protrusion is circular.
4. A quick coupler as claimed in any one of claims 1 to 3, wherein the actuator comprises a rod connected to the lock member to move said lock member between its extended and retracted positions.
5. A quick coupler as claimed in any one of claims 1 to 4, wherein the actuator is a mechanical actuator.
6. A quick coupler as claimed in claim 5, wherein the actuator further comprises a biasing element biasing the position of the lock member towards a default position.
7. A quick coupler as claimed in any one of claims 1 to 4, wherein the actuator is a hydraulic actuator.
8. A quick coupler as claimed in any one of claims 1 to 7, wherein the opposite plates are substantially parallel.
9. A quick coupler as claimed in any one of claims 1 to 8, wherein the link assembly further comprises a flat surface connected to the opposite plates and adapted to rest against the implement.
10.A quick coupler as claimed in any one of claims 1 to 9, wherein the link assembly further comprises a stopper mounted on the opposite plates guiding the lock member into the locking aperture.
11.A quick coupler for reversibly coupling an actuating arm of a vehicle to an implement, the coupler comprising:
a hinge plate assembly comprising front and rear receptacles, the hinge plate assembly further defining a locking aperture comprising a narrow entry expanding into a wider portion;
a link assembly comprising two opposite plates, each plate having at least one aperture;
at least one protrusion mounted on each plate and adapted to engage the front receptacle for a front load configuration or the rear receptacle for a backhoe configuration;
a lock member movably connected relative to the link assembly, said lock member movable between an extended position and a retracted position;
and an actuator operably connected to the lock member and adapted to move the lock member between its extended and retracted positions, wherein the front and rear receptacles are shaped to receive the at least one protrusion, the locking aperture is shaped for removable engagement with the lock member and, wherein in the extended positon, the lock member engages the locking aperture thereby coupling the actuating arm to the implement and wherein in the retracted position, the lock member disengages the locking aperture thereby decoupling the actuating arm from the implement.
a hinge plate assembly comprising front and rear receptacles, the hinge plate assembly further defining a locking aperture comprising a narrow entry expanding into a wider portion;
a link assembly comprising two opposite plates, each plate having at least one aperture;
at least one protrusion mounted on each plate and adapted to engage the front receptacle for a front load configuration or the rear receptacle for a backhoe configuration;
a lock member movably connected relative to the link assembly, said lock member movable between an extended position and a retracted position;
and an actuator operably connected to the lock member and adapted to move the lock member between its extended and retracted positions, wherein the front and rear receptacles are shaped to receive the at least one protrusion, the locking aperture is shaped for removable engagement with the lock member and, wherein in the extended positon, the lock member engages the locking aperture thereby coupling the actuating arm to the implement and wherein in the retracted position, the lock member disengages the locking aperture thereby decoupling the actuating arm from the implement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562136797P | 2015-03-23 | 2015-03-23 | |
| US62/136,797 | 2015-03-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2886709A1 true CA2886709A1 (en) | 2016-09-23 |
| CA2886709C CA2886709C (en) | 2022-05-31 |
Family
ID=56944023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2886709A Active CA2886709C (en) | 2015-03-23 | 2015-03-30 | Quick coupler for reversible coupling |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2886709C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210270007A1 (en) * | 2017-10-06 | 2021-09-02 | Groupe R.Y. Beaudoin Inc. | Bracket for reversibly mounting an excavator bucket on an articulated arm |
-
2015
- 2015-03-30 CA CA2886709A patent/CA2886709C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210270007A1 (en) * | 2017-10-06 | 2021-09-02 | Groupe R.Y. Beaudoin Inc. | Bracket for reversibly mounting an excavator bucket on an articulated arm |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2886709C (en) | 2022-05-31 |
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