An accessory for a power tool

Abstract

An accessory for a power tool comprising: an intermediate member configured for connection to the power tool; an elongate member associated with the intermediate member, the elongate member being configured for sliding movement relative to the intermediate member and the power tool between a storage condition and a plurality of use conditions; a retention portion associated with the elongate member, the retention portion being configured, in the plurality of use conditions, to retain a workpiece in place relative to the power tool; and a gripping portion associated with a first end of the elongate member and configured to occupy a hand of a user during use of the power tool, wherein an opposed second end of the elongate member is located rearwardly of the intermediate member in the storage condition, and moves towards the intermediate member as the elongate member moves from the storage condition to the plurality of use conditions.

Description

AN ACCESSORY FOR A POWER TOOLTECHNICAL FIELD

[0001] The present invention relates to an accessory for a power tool designed to assist in retaining a workpiece in place, as well as a method of using the accessory.BACKGROUND

[0002] Accidental injury resulting from the improper or careless use of power tools, such as saws, drills, and grinders, remains common despite improved safety awareness, operational guidelines, and training. Such tools are widely used across various industries and by DIY enthusiasts, making safety a critical consideration.

[0003] Accidental injuries often occur due to disregard for safety practices and procedures, unauthorised modifications to devices, inadequate workpiece stabilisation, lapse in operator focus, or a combination of these factors. For instance, an operator may bypass safety mechanisms to expedite a task, or distractions during operation may lead to improper tool handling. These risks are further exacerbated in high-pressure work environments or when inexperienced users handle power tools. Addressing these issues requires innovations that enhance safety and usability without compromising the tool's effectiveness.

[0004] In particular, when a workpiece is not securely held in place, it may shift, vibrate, or even be ejected during operation. This instability can lead to inaccurate cuts or drilling, damage to the workpiece, and, more critically, injury to the operator.

[0005] A common method for securely holding a workpiece in place is by using a clamp, typically a G-clamp. These clamps allow the operator to use the power tool without needing to manually hold the workpiece. However, a drawback of clamps is that they must be unclamped, repositioned, and re-clamped each time the operator needs to adjust the workpiece. This issue becomes particularly problematic when making multiple small operations at different angles, as it significantly slows down the process and increases operational complexity.

[0006] Furthermore, while clamps provide stability to the workpiece, they do not physically prevent the operator from accidentally placing their hands near the power tool. Injuries may still occur if the operator loses concentration or becomes negligent while operating the clamp or power tool. For example, an operator may inadvertently position their hand near the cutting or drilling area while adjusting the clamp or repositioning the workpiece.

[0007] Additionally, clamps are often sold separately from power tools, which means manyoperators may either lack access to a clamp or choose not to use one due to the added expense or inconvenience. As a result, the absence of a clamp can lead to unsafe practices, such as manually stabilising the workpiece, significantly increasing the risk of injury.

[0008] Another critical safety concern arises from how the operator's hands are positioned during tool operation. If one hand is used to operate the power tool, the other hand may remain free, creating a risk of accidental injury if it comes into contact with the tool or the workpiece. Conversely, if both hands could be actively engaged — for example, when using an accessory designed forthe powertool — this ensures that both hands are kept away from dangerous areas and are used in parallel for controlled operation. This approach not only reduces the likelihood of accidental injury but also promotes safer and more ergonomic tool usage.

[0009] Clearly, there is a need for an improved accessory that addresses the shortcomings of existing solutions while encouraging the proper and safe operation of power tools. Thus, there would be an advantage if it were possible to provide an accessory that incorporates features that promote consistent adherence to safety practices by reducing reliance on manual workpiece stabilisation and minimising the risk of operator error. In addition to improving safety, it would be advantageous if the accessory could be tamper- or bypass-resistant to ensure that a user cannot easily bypass or modify the device in seeking convenience at the expense of safety.

[0010] Affordability is another critical factor. Many operators, particularly DIY users or small- scale businesses, may be deterred from investing in safety equipment due to cost concerns. An affordable solution would ensure broader accessibility and adoption, making it easier for users across various industries and skill levels to incorporate the accessory into their operations.

[0011] It will be clearly understood that, if a prior art publication is referred to herein, this reference does not constitute an admission that the publication forms part of the common general knowledge in the art in Australia or in any other country.SUMMARY OF INVENTION

[0012] Embodiments of the present invention provide an accessory for a power tool and a method of use thereof, which may at least partially address one or more of the problems or deficiencies mentioned above or which may provide the public with a useful or commercial choice.

[0013] In a first aspect, the invention resides broadly in an accessory for a power tool comprising: an intermediate member configured for connection to the power tool;an elongate member associated with the intermediate member, the elongate member being configured for sliding movement relative to the intermediate member and the power tool between a storage condition and a plurality of use conditions; a retention portion associated with the elongate member, the retention portion being configured, in the plurality of use conditions, to retain a workpiece in place relative to the power tool; and a gripping portion associated with a first end of the elongate member and configured to occupy a hand of a user during use of the power tool, wherein an opposed second end of the elongate member is located rearwardly of the intermediate member in the storage condition, and moves towards the intermediate member as the elongate member moves from the storage condition to the plurality of use conditions.

[0014] In a second aspect, the present invention resides broadly in a method for operating a power tool, the method comprising the steps of:Providing an accessory connected to the power tool, the accessory comprising an intermediate member configured for connection to the power tool, an elongate member associated with the intermediate member, the elongate member being configured for sliding movement relative to the intermediate member and the power tool between a storage condition and a plurality of use conditions, a retention portion associated with the elongate member, the retention portion being configured, in the plurality of use conditions, to retain a workpiece in place relative to the power tool and a gripping portion associated with a first end of the elongate member and configured to occupy a hand of a user during use of the power tool;Locating a workpiece in the vicinity of a working portion of the power tool;Moving the elongate member of the accessory relative to the power tool and the intermediate from to at least one of the plurality of use conditions, such that the retention member of the accessory engages the workpiece and retains it in place relative to the power tool;Maintaining contact on the gripping portion of the accessory such that the workpiece is substantially precluded from movement relative to the powertool during operation of the power tool; andOperating the power tool such that the working portion contacts the workpiece.

[0015] Preferably, the accessory of the second aspect is the accessory of the first aspect.

[0016] Advantageously, the present invention provides an accessory for use with a power tool that enhances the safety, efficiency, and convenience of operating the tool. The elongate member’s ability to move relative to the power tool allows for positioning of the retention portion to accommodate workpieces of various shapes and sizes, ensuring secure engagement. This reduces the risk of the workpiece shifting or becoming unstable during operation, therebyimproving safety and accuracy. The retention portion provides a secure hold on the workpiece, eliminating the need for separate clamps or other accessories that may be cumbersome and time-consuming to set up and adjust. This retention capability of the accessory simplifies the process of preparing and executing tasks, saving time and effort for the user. Moreover, the extendable and movable elongate member allows for versatility in engaging workpieces of different dimensions or orientations, making the accessory suitable for a wide range of applications.

[0017] Further, it is envisaged that the accessory of the present invention may allow a user to apply more pressure to a workpiece than a user may manually apply. Therefore, apart from improving safety, the present invention also improves the ability to maintain a workpiece in place relative to a power tool while work is being performed.

[0018] The inclusion of a gripping portion ensures that one hand of the operator is occupied during operation, reducing the likelihood of accidental contact with the power tool, and particularly a working portion (such as a sawblade) of the power tool. This feature encourages proper hand positioning and promotes safer operation practices. Additionally, the gripping portion may be ergonomically designed to improve user comfort during extended use.

[0019] As indicated, the accessory of the present invention is for use with various power tools, such as, e.g., saws (circular saws, drop saws, compound saws, jigsaws, or table saws), drills, drill presses, grinders, sanders, lathes or routers. These examples illustrate the versatility of the accessory in enhancing safety and functionality during power tool operation by providing secure stabilisation of workpieces, reducing the risk of operator injury, and improving precision.

[0020] It will be understood that power tools include a working portion that is configured to act upon the workpiece. The working portion may be of any suitable form, although it is envisaged that the working portion may comprise a sawblade, drill bit, cutting blade, grinding disc, sanding disc or the like. A user’s hand coming into contact with the working portion of the power tool is what can cause significant injuries to the user, and so it is envisaged that the present invention may be configured to occupy a user’s free hand during operation of the power tool so that the likelihood of the user’s hand coming into contact with the working portion during correct usage of the power tool is reduced or eliminated.

[0021] It will therefore be convenient to describe the accessory with reference to these specific applications. For instance, in the case of saws, the accessory can securely hold a workpiece in place to ensure accurate cuts without requiring manual stabilisation, while for drills, it can prevent workpiece movement during high-speed drilling. Similarly, with grinders or sanders, the accessory can provide the necessary support to maintain a steady working angle.

[0022] However, a person skilled in the art will appreciate that the accessory has broader potential applications and can be adapted for use with other types of mechanical equipment. For example, it may be employed in related fields where stabilising or fixing objects is necessary, such as during welding, assembly, or machining operations. It could also be used in nonindustrial contexts, such as crafting or repair tasks, where precise handling of materials is critical.

[0023] As previously stated, the accessory for a power tool includes at least one intermediate member. The intermediate member may be configured for connection to the power tool. The intermediate member may be connected to any suitable portion of the power tool, although it is preferred that the intermediate member may be located in a position from which the elongate member may be moved into the plurality of use conditions to engage a workpiece.

[0024] In some power tools, such as mitre saws and the like, the power tool comprises a lower portion configured to be located on a support surface and an upper portion that includes the working portion. Typically, the upper portion is hingedly or pivotally connected to the lower portion. In these embodiments, it is envisaged that the intermediate member may be associated with the upper portion of the power tool. By associating the intermediate member (and therefore the elongate member) with the upper portion of the power tool, it may be ensured that a user’s hand is maintained well away from the working portion of the power tool in use.

[0025] In some embodiments, at least a portion of the intermediate member may be configured for movement relative to the power tool. For instance, the intermediate member may be configured for pivoting or rotating movement relative to the power tool. In this way, the position and angle of the elongate member relative to the powertool may be adjusted through association with the intermediate member. This may be achieved using any suitable technique. For instance, the intermediate member may comprise a base portion configured for fixed connection to the power tool, and a movable portion associated with the base portion and the elongate member and configured for movement relative to the base portion. The intermediate member may pivot or rotate to any suitable degree. In some embodiments, the intermediate member may pivot or rotate up to 360° relative to the power tool.

[0026] The intermediate member may be of any suitable size and construction and may be formed from any suitable material or materials.

[0027] The intermediate member may take any suitable form, depending on the intended application and the specific power tool it is designed to work with. For example, the intermediate member may comprise one or more clamps, housings, brackets, or mounting member configured for connection to the power tool. The intermediate member may be fabricated from materials such as, but not limited to, metal (e.g., steel, aluminium), composite materials, orpolymeric materials.

[0028] The intermediate member may utilise a magnetic coupling or one or more suctionbased mounts configured to allow provide a connection to the power tool. It is envisaged that the accessory may be retrofitted to a power tool, or may be fitted to new power tools.

[0029] The intermediate member may comprise one or more retaining portions configured to retain the elongate member in connection with the intermediate member. This configuration may allow the elongate memberto be held in place while still enabling movement of the elongate member relative to the intermediate member. The one or more retaining portions may be constructed from materials such as metal, polymeric material, rubber or composite materials.

[0030] The retaining portion may comprise or incorporate fasteners, locking pins, clamps or the like to allow the elongate member to be repositioned. In other embodiments, the elongate member may be held in place on the retaining portion via a frictional engagement. In this way, a user may overcome the frictional engagement by applying a force to the intermediate member, thereby moving the elongate member relative to the power tool.

[0031] In general, the retaining portion may be configured with cushioning portions, such as rubberised or textured inner surfaces, or bushings, to provide a secure connection to the elongate member while minimising the risk of wear, damage, or slippage. It is envisaged that the cushioning portions of the intermediate member may help to stabilise the elongate member during use, ensuring that it remains firmly in position even under the stresses and vibrations caused by the operation of the power tool.

[0032] In some embodiments, the intermediate member may be configured for connection to the power tool via one or more mechanical fasteners (screws, bolts, nails, rivets or the like), using adhesives, or via a heat treatment such as welding or brazing. In other embodiments, the intermediate member may be formed integrally with the power tool.

[0033] In further embodiments, the intermediate member may be connected to the power tool using a quick-release mechanism, thereby allowing the intermediate memberto be attached and detached to the power tool for repositioning or for use with another power tool.

[0034] In some embodiments, the intermediate member may further include frictionenhancing elements. The friction-enhancing elements may be of any suitable form, and may comprise one or more bushings, sleeves, coatings etc. configured to assist the one or more retaining members in securely retaining or gripping the elongate member. It is envisaged that the friction-enhancing members may be provided on an outer surface of the one or moreretaining members. The friction-enhancing elements may be fabricated from any suitable material. For instance, the friction-enhancing elements may be fabricated from polymeric materials such as, but not limited to, rubber, thermoplastic elastomers, or ultra-high-molecular- weight polyethylene (UHMWPE).

[0035] The surfaces of the friction-enhancing elements may be textured or patterned to further enhance retaining or gripping. For example, ridges, grooves, or a knurled finish on the surfaces of the friction-enhancing elements may create additional contact points with the elongate member, thereby improving friction and reducing the likelihood of movement.

[0036] A skilled addressee would understand that the cushioning portions or frictionenhancing elements may also serve a dual purpose by dampening vibrations transmitted from the power tool to the intermediate member and the elongate member.

[0037] In other embodiments, the intermediate member may also include one or more friction-reducing elements, configured to allow the elongate member to move more easily during adjustment or operation. Such friction-reducing elements may include low-friction liners, rolling elements (such as wheels, ball bearings or rollers), or inserts composed of low-friction materials such as polytetrafluoroethylene (PTFE), acetal, or nylon. These elements may be positioned in abutment with, or close proximity to, the elongate member to minimise resistance during movement, particularly in applications where smooth and repeatable repositioning is desirable. For example, a sleeve or collar with an internal PTFE lining may be integrated into the intermediate member to allow for low-resistance movement of the elongate member while still maintaining sufficient support and alignment.

[0038] In some embodiments, the one or more retaining portions may also include alignment mechanisms, such as grooves, notches, or guide pins, to ensure precise positioning of the elongate member and prevent unintended shifting during operation.

[0039] In other embodiments, the elongate member may include an engagement portion configured to facilitate its attachment to the power tool via the intermediate member. The engagement portion may take various shapes, such as circular, oval, rectangular, or elongated, depending on the specific requirements of the connection system.

[0040] In such embodiments, the intermediate member may be of any suitable form or shape to ensure a reliable and stable connection to the elongate member. For example, the intermediate member may be a bolt, pin, screw, or a specially designed locking mechanism that fits snugly through the engagement portion. Once inserted, the intermediate member may engage with complementary components, such as a nut, retainer base, or threaded surface ofthe power tool, to securely fasten the elongate member to the power tool.

[0041] The intermediate member may include friction-enhancing elements, such as rubberised surfaces, serrated edges, or textured features, to enhance the stability of the connection with the elongate member.

[0042] Alternatively, the engagement portion of the elongate member may accommodate adjustable or quick-release connection mechanisms. For instance, the engagement portion may be a slot allowing for linear adjustments, enabling the elongate member to slide into the desired position before being locked in place. This may be achieved using a cam-lock mechanism, lever, or spring-loaded pin, allowing for rapid and precise positioning of the elongate member.

[0043] Furthermore, the engagement portion may include reinforcement features to enhance its durability and prevent wear or deformation overtime. For example, the edges of the engagement portion could be lined with metal or composite inserts to withstand repeated tightening and loosening of the intermediate member.

[0044] In some embodiments, the intermediate member may be provided in the form of a housing. The housing may include one or more openings therein. It is envisaged that the elongate member may be at least partially received within the housing through the one or more openings in the intermediate member. In some embodiments, the elongate member may extend through the housing via openings in opposed sides or walls thereof. In other embodiments, an end of the elongate member may be located within the housing, and the elongate member may extend through one opening therein. In a most preferred embodiment, the elongate member may be at least partially received in the housing such that the first end of the elongate member may be located forwardly of the intermediate member and the second end of the elongate member may be located rearwardly of the intermediate member.

[0045] It is envisaged that the elongate member may be configured for any suitable movement relative to the power tool and intermediate member. In some embodiments, the elongate member may be configured for sliding or telescoping movement relative to the power tool and the intermediate member. In this way, the elongate member is configured to be moveable relative to the power tool.

[0046] As indicated, the accessory for a power tool includes an elongate member associated with the intermediate member.

[0047] The elongate member may be of any suitable size and construction and may be formed from any suitable material or materials.

[0048] The elongate member may take any suitable form, depending on the intended application and the specific power tool it is designed to work with. For example, the elongate member may comprise one or more rods, bars, or tubes. The elongate member may be fabricated from materials such as, but not limited to, metal (e.g., steel, aluminium), composite materials, or polymeric materials.

[0049] In some embodiments, the elongate member may be of unitary construction. In other embodiments the elongate member may be provided in the form of two or more elongate member portions. In some embodiments, the elongate member portions may be configured for movement relative to each other, such that the elongate member be extended or retracted as the elongate member portions move relative to one another. Thus, the elongate member portions may be configured for sliding or telescoping movement relative to one another. In this manner, the elongate member may be configured to accommodate various working positions, storage requirements, or different tool configurations. The elongate member may extend any suitable distance from the storage condition to the plurality of use conditions, and it will be understood that the distance of extension between the storage condition and the plurality of use conditions may depend on a number of factors, such as the type of power tool, the type and size of the workpiece, the work to be performed on the workpiece and so on.

[0050] As previously stated, the elongate member is configured for association with the intermediate member. The elongate member may be associated with the intermediate member in any suitable manner. Preferably, however, the elongate member may be associated with the intermediate member in such a manner that the elongate member is configured for sliding movement relative to the intermediate member and the power tool between a storage condition and a plurality of use conditions. More specifically, the elongate member may be slidably moveable relative to the intermediate member and the power tool between a storage condition and a plurality of use conditions in which the retention member engages the workpiece to retains the workpiece in place relative to the power tool.

[0051] Preferably, the elongate member is indirectly connected to the power tool via the intermediate member. The intermediate member may comprise one or more retaining portions configured to retain the elongate member in connection with the intermediate member.

[0052] Preferably, the elongate member may comprise a first end and an opposed second end. It is envisaged that the gripping portion may be associated with the first end of the elongate member. The gripping portion may be located at or adjacent the first end of the elongate member.

[0053] The opposed second end of the elongate member may be located rearward of theintermediate member when in a storage condition. Thus, it is envisaged that the elongate member may slide forwardly towards the front of the power tool when moving from the storage condition to the plurality of use conditions, and may slide rearwardly towards the back of the power tool when moving from the plurality of use conditions to the storage condition. It is envisaged that the sliding movement of the elongate member may be in a direction that is substantially co-axial with a longitudinal axis of the elongate member.

[0054] In a preferred embodiment, the elongate member may be associated with the intermediate member such that the intermediate member is positioned between opposed first and second ends of the elongate member. Thus, it is envisaged that the second end of the elongate member may move towards the intermediate member as the elongate member moves from the storage condition to the plurality of use conditions. Conversely, the second end of the elongate member may move away from the intermediate member as the elongate member moves from the plurality of use conditions to the storage condition. In this embodiment, the first end therefore moves towards the intermediate member as the elongate member moves from the plurality of use conditions to the storage condition. The second end may extend any suitable distance rearwardly of the intermediate member in the storage condition. It is envisaged that the second end of the elongate member may include a stop member. In this embodiment, as the elongate member moves from the storage condition to the plurality of use conditions, the stop member may abut the intermediate member, thereby preventing further forward movement of the elongate member relative to the intermediate member. Thus, the stop member may define the limit of movement of the elongate member relative to the intermediate member into the plurality of use conditions. Further, the stop member may preclude the elongate member from becoming disconnected or dissociated from the intermediate member.

[0055] The stop member may be of any suitable form, such as an enlarged portion, a protrusion, or a physical barrier integrally formed with or attached to the elongate member. For example, the stop member may comprise a flange, collar, pin, or similar element that interacts with the intermediate member to limit the range of movement of the elongate member.

[0056] In some embodiments, the stop member may be removable or adjustable, allowing for flexibility in its position along the elongate member. For instance, the stop member could be implemented as a threaded component, such as a nut or ring, that can be repositioned along the elongate member to modify the allowable range of sliding movement. Alternatively, the stop member may be fixedly attached to the elongate member, providing a fixed limit to its range of motion.

[0057] The stop member may further include a cushioning or friction-resistant element, suchas a rubber or polymer buffer, to absorb impact forces when the stop member contacts the intermediate member or the power tool.

[0058] In some embodiments, the one or more intermediate members may comprise a base portion configured for fixed connection to the power tool and a movable portion associated with the base portion and the elongate member and configured for movement relative to the base portion. The movable portion may include a rotating or pivoting portion configured to allow the elongate member to pivot or rotate relative to the power tool. Thus, in some embodiments, moving the elongate member from the storage condition to the plurality of use conditions may involve a sliding movement of the elongate member relative to the intermediate member and the power tool, and a pivoting or rotating movement of the elongate member relative to the power tool. In this way, the position of the elongate member (and therefore the retention portion) in the plurality of use conditions may be adjusted to account for workpieces of different size, as well as to accommodate different types of operation to be performed on the workpiece.

[0059] In some embodiments the pivoting or rotational movement may move the elongate member (and the retention portion) in a substantially vertical direction. In other embodiments, the pivoting or rotation movement may allow the elongate member (and the retention portion) to rotate about a longitudinal axis of the elongate member. The elongate member (and the retention portion may rotate any suitable distance about the longitudinal axis of the elongate member. In some embodiments of the invention, the elongate member (and the retention portion may rotate up to 360° about the longitudinal axis of the elongate member.

[0060] In some embodiments, the one or more intermediate members may include a pivoting mechanism configured to allow the elongate member to pivot or rotate relative to the one or more intermediate members.

[0061] As indicated, the accessory includes a retention portion associated with the elongate member, the retention portion being configured to retain a workpiece in place relative to the power tool.

[0062] The retention portion may have any suitable shape, size, and construction, and it may be formed from any suitable material or combination of materials.

[0063] In a simple form, the retention portion may comprise a projection associated with the elongate member and configured to be placed in abutment with the workpiece to retain the workpiece in place. The retention portion may be connected directly to the elongate member or may be indirectly connected to the elongate member. In other embodiments, the retention portion may be formed integrally with the elongate member.

[0064] Preferably, the retention portion may be located at a point between the opposed first and second ends of the elongate member. The actual location of the retention portion on the elongate member is not critical, provided that in the use condition the retention portion is able to engage the workpiece. Thus, it is envisaged that the retention portion may be located forwardly of the intermediate member.

[0065] In some embodiments, the retention portion may include an engagement member configured for abutment with the workpiece. The engagement member may be of any suitable form, although it is envisaged that the engagement member may be configured, when engaged with the workpiece, to ensure that the workpiece is substantially precluded from movement relative to the power tool.

[0066] In some embodiments, the engagement member may be fixedly connected to the retention portion. Alternatively, the engagement member may be removably connected to the retention portion. In this way, an engagement member may be removed and replaced with an engagement member more suitable for engaging with a particulartype or geometry of workpiece. Further, the engagement member may be configured for movement relative to the retention portion. For instance, the engagement member may be configured for rotational or pivoting movement relative to the retention portion. In this way, the position of the engagement member relative to the working portion (such as a sawblade) of the power tool may be adjusted.

[0067] The engagement member may be a solid member. This may include a block, wedge or the like. Alternatively, the engagement member may be a moveable component, such as, but not limited to, a wheel. The wheel may be configured to freely rotate in order to to enable adjustable engagement with the workpiece. The rotational capability of the wheel may reduce friction during adjustments, facilitating the positioning of the engagement member in a desired location. Additionally, the wheel's surface may include friction-enhancing elements, such as grooves, ridges, or textured coatings, to improve grip and prevent slippage during use.

[0068] Alternatively, the wheel may be configured for limited rotation. For example, the wheel may be mounted on a shaft with frictional resistance or a locking mechanism that restricts its rotational freedom, allowing only limited movement. This restricted mobility may assist in providing a controlled amount of give when engaging a workpiece, while still maintaining a firm positioning of the engagement member. Such an arrangement may be advantageous where excessive rotation could compromise alignment or stability. The degree of permitted movement may be adjusted to suit the application, such as allowing a relatively small degree of pivoting, rolling, or oscillating motion to conform to minor surface variations without permitting uncontrolled motion. It will be understood that, in this way, the engagement member may stillaccommodate variability in the workpiece while offering a more stable interface. The wheel’s surface may also include friction-reducing elements, such as smooth polymeric coatings, embedded low-friction inserts, or lubricious surface treatments, which serve to improve grip during initial engagement while allowing controlled slippage during adjustment or repositioning.

[0069] In some embodiments, the wheel, or at least a portion of the wheel, may be constructed from rubber, thermoplastic elastomers (TPE), polyurethane, or similar materials, providing several advantages, including enhanced grip, flexibility, as well as absorbing shocks and vibrations. These materials may help reduce noise and minimise the transmission of vibrations to other components, thereby improving overall operational comfort and control.

[0070] The wheel may be provided in any suitable size to be installed on the arm. For example, the radius of the wheel may may be about 1 cm, about 2 cm, about 3 cm, about 4 cm, about 5 cm, about 6 cm, about 7 cm, about 8 cm, about 9 cm, or even about 10 cm or more.

[0071] In some embodiments, the retention portion may include a locking mechanism that is operatively associated with the engagement member. The locking mechanism may be of any suitable form, and may include a switch, lever or the like. It is envisaged that the locking mechanism may allow the user to lock the engagement member against movement. By locking the engagement member in place, it may be ensured that the workpiece is held stable during operation of the power tool.

[0072] The locking mechanism may employ any suitable means for achieving secure immobilisation, such as a switch, a friction-based clamp, a mechanical pin that engages with the engagement member, or a detent system. Further, the locking mechanism may be configured to be easily adjustable or reversible, enabling the operator to quickly transition between moveable and locked states based on the specific requirements of the task.

[0073] In some embodiments, the accessory may further comprise an actuation member. The actuation member may be of any suitable form, such as a switch, lever, sensor or the like. In a preferred embodiment, a user may be required to actuate the actuation member in order to actuate operation of the power tool.

[0074] In some embodiments of the invention, the actuation member may comprise a pressure sensor, micro switch or the like. In these embodiments, it is envisaged that a user may be required to apply sufficient pressure to the gripping portion to actuate the actuation member. Preferably, the power tool may only be actuated when sufficient pressure is applied to actuate the actuation member. Preferably, the power tool may only operate when sufficient pressure is applied to the actuation member. Thus, it is envisaged that a user may be required to maintainsufficient pressure on the actuation member at all times during operation of the power tool in order to maintain operation of the power tool. It is envisaged that, when pressure is applied to the gripping portion of the elongate member, a portion of the elongate member may apply pressure against the actuation member. Thus, actuation of the power tool may occur when sufficient pressure is applied to the micro switch by a portion of the elongate member to actuate the micro switch. Preferably, the micro switch is associated with a power control device.

[0075] In some embodiments, an adjustment mechanism may be operatively associated with the actuation member (e.g., a micro switch). The adjustment mechanism may be of any suitable form. The adjustment mechanism may be configured to adjust the amount of pressure that must be applied to the elongate member to actuate the actuation member. This may be adjusted depending on the user. For instance, an older user or a user with a physical disability may be unable to apply the same amount of pressure to the elongate member as an able-bodied adult. In this way, the accessory may be adjusted to allow its use by a range of users.

[0076] In some embodiments, the adjustment mechanism may comprise a switch, dial, ratchet mechanism or the like. In other embodiments, the adjustment mechanism may comprise a screw, bolt, or the like.

[0077] In other embodiments, the engagement member may comprise a grip portion. The grip portion may be of any suitable form. For example, the grip portion may be provided with a particular shape, or one or more receiving portion, or the grip portion may include one or more protrusions configured to engage with the workpiece. The protrusions may be of any suitable form, such as teeth orserrated projections. The protrusions may be strategically arranged and / or oriented to provide a secure engagement with the workpiece. It is envisaged that when the grip section contacts the workpiece, the teeth create multiple points of contact, thereby enhancing the overall grip strength and preventing slippage or movement during the use of the power tool.

[0078] In some embodiments, the protrusions may be configured with varying lengths, widths, or angles to accommodate different types of workpiece surfaces, such as smooth, textured, or irregular materials. For instance, longer, narrower or serrated protrusions may be used for soft or compressible workpieces, while broader or shorter protrusions may be more suitable for harder or more brittle materials.

[0079] In other embodiments, the protrusions may also be coated with a friction-enhancing material, such as rubber, polyurethane, or a high-friction polymer, to further improve their gripping capabilities while reducing the risk of surface damage to the workpiece.

[0080] Further, the grip portion may be designed to flex or pivot slightly upon engagementwith the workpiece. This flexibility may allow the grip portion to self-adjust to the surface contours of the workpiece, ensuring an even and secure grip. In some embodiments, a locking mechanism may be included to fix the position of the grip portion once it has engaged with the workpiece, providing additional stability during operation.

[0081] The engagement member may be connected to the elongate member via an intermediate member. The intermediate member may be of any suitable form. For instance, the intermediate member may comprise a mounting member, housing, bracket or the like.

[0082] In a particular embodiment, the intermediate member may comprise an arm that is connected to the elongate member at or adjacent a first end thereof, and to the engagement at or adjacent an opposed second end thereof. The arm may serve as a support structure for an engagement member, which is configured to engage with a workpiece. In some embodiments, the arm may be formed integrally with the elongate member. In other embodiments, the arm may be formed separately to the elongate member and may be configured for fixed or removable connection thereto.

[0083] The arm may be constructed with a generally elongate form. Its shape may be linear, angular, or have a curved profile depending on the desired range of motion and the specific functionality of the accessory. In some embodiments, the arm may be hinged, telescoping, or pivoting to allow for various configurations of workpiece positioning.

[0084] The arm may be fabricated from materials such as steel, aluminium, polymers, or composites to ensure durability and resistance to wear. Further, the arm may be coated with anti-corrosive or wear-resistant finishes to extend its lifespan.

[0085] The arm may be attached to the elongate member through mechanical fastening members, such as bolts, rivets, nails, screws or welds, or may be configured to be retained in a receiving portion on the elongate member, such as slots, sockets or the like.

[0086] Additionally, the arm may be designed with adjustable features, such as telescoping sections, pivot joints, or locking mechanisms. These adjustments allow the operator to adjust the arm's length or angle. The adjustment may be achieved manually or through powered actuators.

[0087] The engagement member may possess a relatively high friction surface or material designed to securely hold the workpiece in place, preventing slippage or unintended movement during the operation of the power tool.

[0088] In use, it is envisaged that a user may place a workpiece relative to the workingportion of the power tool. The user then moves the elongate member from the storage condition to a plurality of use conditions in which the retention portion engages with the workpiece. The force applied to the workpiece by the retention portion may be sufficient to preclude movement of the workpiece relative to the powertool. Alternatively, a force may be applied to the workpiece through the retention portion to force the workpiece into abutment with a stop portion. The stop portion may be of any suitable form, although in a preferred embodiment, the stop portion may comprise a fence or similar barrier provided on the power tool. In this embodiment, the accessory may be used to retain the workpiece in place against the stop portion to substantially preclude movement of the workpiece relative to the power tool during operation of the power tool.

[0089] As previously stated, the elongate member may be moved from a storage condition to a plurality of use conditions. It will be understood that, by providing a plurality of use conditions, the elongate member may be configured to engage with workpieces of varying sizes and shapes. It is envisaged that a user may move the elongate member into the plurality of use conditions by sliding the elongate member forwards relative to the intermediate member and the power tool and one or more of moving the elongate member substantially vertically relative to the power tool or pivoting the elongate member about the longitudinal axis of the elongate member. It will be understood that different use conditions may be achieved by moving the elongate member forwards relative to the intermediate member and the power tool, substantially vertically relative to the power tool and / or pivoting the elongate member about the longitudinal axis of the elongate member by different distances.

[0090] As indicated, the accessory includes a gripping portion associated with the first end of the elongate member and configured to occupy a hand of a user during use of the power tool.

[0091] The gripping portion may be of any suitable form. In a simple form, the gripping portion may comprise a portion of the elongate member that the user may hold during use. In other embodiments, the gripping portion may comprise a protrusion or recess associated with the elongate member that is configured to be held by the user. In still further embodiments, the gripping portion may be in the form of a handle. The handle may include features such as contours, grooves, or ridges configured to enhance the user’s grip on the gripping portion.

[0092] The handle may be formed integrally with the elongate member. The handle may be fabricated from the same material as the elongate member. In alternative embodiments, the handle may be fabricated from polymeric materials such as rubber, thermoplastic elastomers, foam or the like, which provide cushioning and reduce user fatigue.

[0093] In other embodiments, the gripping portion may be a cylindrical or bar-like structure,allowing the user to wrap their fingers around the structure for straightforward operation. In general, the gripping portion may be covered with a sleeve (such as a rubber or silicone sleeve) to provide comfort and increase friction.

[0094] In further embodiments, the gripping portion may be adjustable in length, angle, or position to accommodate operators with different hand sizes or preferences. For example, the gripping portion may be equipped with a telescoping or pivoting mechanism to allow the user to customise the gripping portion's orientation for optimal comfort and control.

[0095] In some embodiments, the gripping portion may incorporate a trigger or lever mechanism that enables the user to control specific functions of the accessory or the power tool, such as activating a clamp or locking mechanism.

[0096] In other embodiments, the gripping portion may include a switch mechanism. The switch mechanism may be of any suitable form, although in some embodiments it is envisaged that the switch mechanism may be actuated to operate the powertool. Thus, in this embodiment, it is envisaged that operation of the power tool may only be possible when the user’s hand is located on the gripping portion. In this way, the user’s hand is required to be on the gripping portion, ensuring that the user does not have a free hand that could be placed near the working portion of the power tool.

[0097] In yet further embodiments, the gripping portion may adopt a pistol-grip design, featuring an angled handle similar to those found in drills or certain types of saws. Alternatively, the gripping portion may include a D-shaped or loop-style handle such that it provides a broader surface area for gripping.

[0098] Specifically, the gripping portion may incorporate an anti-vibration mechanism to improve user comfort. For example, it may include a shock-absorbing layer or suspension system to dampen vibrations generated during the operation of the power tool.

[0099] The gripping portion may feature non-standard shapes, such as spherical, oval, or asymmetrical designs, to suit specific use cases or aesthetic preferences. The gripping portion may also include built-in safety features, such as guards or shields, to protect the operator’s hand from accidental contact with the power tool or moving parts. For example, the gripping portion may have an extended handguard to create a physical barrier between the operator and the active area of the power tool.

[0100] As indicated, the elongate member is moveable relative to the power tool without detaching the elongate member from the intermediate member between a storage condition anda plurality of use conditions in which the retention member engages the workpiece to retain the workpiece in place relative to the power tool.

[0101] As previously stated, the elongate member may be operatively connected to the power tool through the intermediate member. It is envisaged that the elongate member may be provided with any suitable mechanisms to enable movement, such as sliding rails, telescoping sections, or pivoting joints. For instance, in a telescoping design, the elongate member may consist of multiple nested sections that slide within one another. In a sliding rail design, the elongate member may move along a track or guide. The elongate member may be configured to slide relative to the intermediate member. It is envisaged that this sliding capability provides flexibility in positioning the elongate member during use, allowing for adjustments without detaching the elongate member from the intermediate member.

[0102] It will be understood that the sliding mechanism may incorporate friction-resistant materials or elements to enable smooth movement while maintaining sufficient resistance to prevent unintended displacement during operation. For example, the intermediate member may include components such as low-friction sleeves, bushings, or coatings made from materials such as polytetrafluoroethylene (PTFE), nylon, or other suitable polymers. These materials can facilitate controlled movement while reducing wear on the elongate member and intermediate member.

[0103] In some embodiments, the friction resistance may be calibrated to allow sliding only when an operator applies deliberate force, such as pushing or pulling the elongate member, thereby ensuring stability during normal operation of the power tool. The level of friction resistance may be adjustable via a mechanism integrated into the intermediate member, such as a tensioning screw, spring-loaded clamp, biasing connection of the retainer top and a retainer base, or similar adjustment device.

[0104] Additionally, the sliding feature may include safety or locking elements to secure the elongate member in a desired position once adjusted. For example, the intermediate member may include a locking pin, threaded collars, friction clamps, cam lever, or clamping mechanism that can temporarily immobilise the elongate member to provide stability during use. Such locking mechanisms may be disengaged when sliding adjustments are required, offering both flexibility and security.

[0105] In other embodiments, the elongate member may be facilitated with any suitable mechanisms that allow for pivoting movement relative to the intermediate member, thereby enabling the elongate member to move in a controlled arc or rotational manner. These mechanisms may include, but are not limited to, hinges, pivot joints, rotational bearings, or swivelconnectors.

[0106] For example, the intermediate member may include a pivot point or a pin that is positioned at a specific location on the elongate member, allowing the elongate member to rotate or pivot around this point. The pin or pivot point may be secured with fasteners such as bolts, rivets, or screws, ensuring that the pivoting movement is stable and controlled while still allowing for the necessary range of motion.

[0107] In some embodiments, the pivoting mechanism may incorporate a bearing, such as a ball bearing or roller bearing, to facilitate rotation and reduce friction between the elongate member and the intermediate member.

[0108] Additionally, the pivoting mechanism may include locking or tensioning features that allow the operator to secure the elongate member in a fixed position when needed. For instance, a locking pin, spring-loaded clip, or cam lever could be employed to lock the elongate member in place after it has been adjusted to the desired angle or orientation. This locking feature ensures that the elongate member remains in a set position during operation, providing stability and preventing unintended movement.

[0109] In some embodiments, the pivoting mechanism may also include adjustable components that allow the user to modify the pivot axis or range of motion. For example, an adjustable hinge or pivot joint with a sliding component may enable the user to change the angle of the elongate member relative to the intermediate member, providing greater flexibility for various applications.[001 10] Further, the materials used for the pivoting mechanism and its components may be selected for their durability and strength, ensuring that the mechanism can withstand the stresses and forces experienced during operation. Materials such as steel, aluminium, or high- strength polymers may be used to provide both robustness and a low-maintenance design.[001 11] In short, a skilled addressee would understand that the elongate member may be movable relative to the power tool in a variety of suitable combinations of extension, retraction, and pivoting, thereby enabling the accessory to engage workpieces of different shapes, sizes, and orientations. The elongate member's movement may include linear extension and retraction along a defined axis, pivoting around one or more pivot points, or a combination of both, allowing for greater flexibility and adaptability during use.[001 12] In general, these movements allow the accessory to handle workpieces with different geometries, such as irregular shapes, angled surfaces, or materials of varying thickness. Theability to extend, retract, and pivot ensures that the elongate member can adjust to a wide range of workpieces while maintaining stability and control, regardless of the workpiece's position or orientation relative to the power tool. Furthermore, these adjustable movements enhance the usability of the accessory in different operational contexts, such as making cuts, drilling, or sanding. The combination of extension, retraction and pivoting may be particularly useful when working with workpieces that require precise positioning, such as when making angled cuts, working with large or bulky materials, or securing smaller workpieces in confined spaces.[001 13] A skilled addressee would also appreciate that the movements of the elongate member could be implemented either manually or through powered mechanisms such as one or more actuators. In these embodiments, the one or more actuators may be associated with any suitable power source in order to operate.[001 14] For manual operation, the elongate member may allow the operator to adjust its position relative to the intermediate member and the power tool. The accessory may include locking mechanisms, such as, but not limited to, clamps, friction locks, or detents, to allow users to hold the elongate member in place once the desired position is achieved.[001 15] Alternatively, powered mechanisms may be employed. For example, the elongate member may be extended, retracted, or pivoted using electric, pneumatic, or hydraulic actuators. These powered systems may be controlled via switches, buttons, levers, remote controls, and the like. It is envisaged that this may provide enhanced convenience and precision.[001 16] The power source for such actuators may include batteries, solar cells, generators, mains electricity, or compressed air or other fluid, depending on the specific requirements of the tool and the accessory. In embodiments involving electric actuators, the accessory may integrate with the power tool’s existing power supply to minimise additional components. Pneumatic or hydraulic systems may be employed where higher force or more robust adjustment capabilities are required.[001 17] In some embodiments, the powered mechanism may include sensors or programmable controls to automate the movements of the elongate member. For instance, sensors may detect the size or shape of the workpiece and adjust the position of the elongate member and retention member to ensure secure retention of the workpiece.[001 18] In other embodiments, the elongate member may include a manual adjustment mode. The manual adjustment mode may include the option to engage a powered actuator for fine-tuning or heavy-duty tasks.

[0119] In some embodiments, the accessory may include one or more sensors. The sensors may be temperature sensors, proximity sensors, infrared sensors, pressure sensors, light sensors, ultrasonic sensors or a combination of the above.

[0120] The one or more sensors may be associated with any suitable components of the accessory, including the elongate member, the retention portion and / or the gripping portion.

[0121] Advantageously, the one or more sensors may be positioned such that an operator is unable to circumvent associated safety protocols by covering the sensor with something other than their hand.

[0122] In some embodiments, the one or more sensors may include auxiliary sensors. Preferably, these auxiliary sensors are cameras configured to monitor the position of the operator in relation to the power tool. Preferably, the cameras may monitor user fatigue by logging characteristics such as user posture, eye positioning (including blinking speed, closed eyes, and eye direction, head positioning, and yawning. The skilled addressee will appreciate that a combination of the plurality of sensors and auxiliary sensors may enable monitoring of user safety by employers thereby enhancing safety of operation of the power tool.

[0123] In some embodiments, the one or more sensors may be configurable for a number of user preferences such as open hand or closed hand use. In this regard, the one or more sensors may be configured to avoid sensing inadequate engagement or unsafe operation where an operator has set a preference for a particular type of operations and therefore may enable the operator to continue to operate the power tool in safe conditions even if such conditions are not typical.

[0124] In instances where user preferences are not configured, it will be understood that certain average user preferences may be pre-defined and any deviation from the aforementioned average user preferences may result in the sensors sensing inadequate engagement.

[0125] In some embodiments, the gripping portion may provide haptic feedback. In such instances, when an operator’s hand is not correctly positioned on the gripping portion, haptic feedback (in the form of a vibration or the like) may alert the operator to the incorrect positioning of their hand.

[0126] Preferably, the one or more sensors located at the gripping portion are pressure sensors.

[0127] In some embodiments, a plurality of sensor types may be provided on the accessory.The sensor types may be uniform at areas of the accessory. For example, the elongate member may comprise a plurality of light sensors whereas the gripping portion may comprise a plurality of pressure sensors.

[0128] The one or more sensors may be located at any suitable position on the accessory. For instance, if the one or more sensors comprise pressure sensors, the pressure sensors may be located on the retention portion. In particular, the pressure sensors may be located on the engagement member of the retention portion, or on a part of the engagement member that directly engages with the workpiece.

[0129] In other embodiments, such as if the one or more sensors comprise temperature sensors, the temperature sensors may be located on the gripping portion. In such embodiments, if a temperature sensor senses that an operator’s hand is not located on or near the temperature sensor (due to a decrease in measured temperature), the temperature sensor may measure that the operator has not maintained adequate engagement between the retention portion and the workpiece.

[0130] Although the present invention has largely been described in terms of a pressure applied by an operator being required to maintain adequate engagement between the workpiece and the retention portion, it is also envisaged that adequate engagement between the workpiece and the retention portion may be measured through the use of one or more temperature sensors (for instance, to sense the heat from an operator’s hand, thereby ensuring that the operator’s hand is associated with the gripping portion) or sensors in the form of cameras to confirm the location of the operator’s hand on the gripping portion. In other embodiments, the one or more sensors may comprise one or more buttons or switches that, in use, the operator must engage to ensure adequate engagement with the gripping portion (and therefore between the workpiece and the retention portion).

[0131] In some embodiments, the one or more sensors may comprise movement sensors. In such embodiments, if the one or more sensors detect movement within a proximity to the powertool’s working part (preferably, within a predetermined proximity) the one or more sensors may interrupt the supply of power to the power tool.

[0132] Preferably, the gripping portion may include a tactile surface to direct an operator to place their hand in a defined zone. Preferably, the one or more sensors may be positioned across the tactile surface.

[0133] Preferably, the one or more sensors are associated with a power control device. Preferably, the power control device is integrally formed within the power tool. In otherembodiments, the power control device may be located remotely to the power tool.

[0134] Preferably, the one or more sensors are configured to communicate information generated by the sensors to the power control device.

[0135] In some embodiments, the gripping portion may be configured to provide haptic feedback to the operator. In these embodiments, haptic feedback in the form of a vibration of the gripping portion may indicate to the operator that their hand is not correctly positioned on the gripping portion and, more particularly, on the tactile surface of the gripping portion.

[0136] As previously stated, the power tool is able to actuate only when the one or more sensors detects that the engagement between the retention portion and the workpiece is at an adequate level. The one or more sensors may detect an adequate engagement based on the pressure applied to or by the gripping portion, the temperature measured by the one or more sensors (indicating the presence of an operator’s hand, or a lack thereof) and so on.

[0137] Preferably, the power tool and the accessory are associated with a power source. Preferably, the power source is associated with a power control device. In this embodiment, it is envisaged that when the one or more sensors detect adequate engagement between the retention portion of the accessory and the workpiece, the power control device will allow power to be supplied to the power tool from the power source. However, when the one or more sensors detect inadequate engagement between the retention portion and the workpiece (such as when an operator removes their hand from the gripping portion), the power control device may interrupt or disconnect the power supplied to the power tool from the power source. Thus, in some embodiments of the invention, the power control device may comprise a circuit breaker, safety switch or the like.

[0138] It is envisaged that, when commencing use of the power tool, the operator may be unable to actuate the power tool unless adequate engagement between the retention portion of the accessory and the workpiece is detected by the one or more sensors.

[0139] It is envisaged that, while the present invention may reduce or eliminate the risk of injury to a user through coming into contact with a working portion of the power tool, the present invention may also be configured to reduce or eliminate the chance of kick back. Kick back occurs when the working portion (such as a sawblade) of the power tool becomes jammed by the workpiece. This causes the working portion to retract quickly out of the cut in the workpiece, allowing the working portion to come into contact with whatever may be in its path. This often includes the user’s hand or leg, causing injuries thereto.

[0140] Kick back may also occur when the workpiece is improperly aligned relative to the fence of the power tool. In this situation, the workpiece may move to align with the fence as it is being cut. This can cause the workpiece to be ejected from the power tool at high velocity as it locks onto the sawblade due to friction.

[0141] In some embodiments, when the accessory is used to retain the workpiece in place, an additional retention force may be applied to the workpiece. In this embodiment, one or more sensors may be used to determine that the retention portion is being used to apply a force to the workpiece. Upon this determination, an additional clamping force may be applied to the workpiece. In this embodiment, one or more clamping members may be automatically actuated upon the determination that the retention portion is being used to apply a force to the workpiece. The one or more clamping members may be actuated using any suitable mechanism. For instance, the one or more clamping members may be actuated electrically, pneumatically, hydraulically or the like, or any suitable combination thereof. It is envisaged that, in use, the one or more clamping members may physically contact the workpiece when actuated.

[0142] Alternatively, a suction force (or similar) may be automatically applied to the workpiece when it is determined that the retention portion is being used to apply a force to the workpiece.

[0143] In some embodiments of the invention, the additional clamping force may be removed from the workpiece when the force applied to the workpiece by the retention portion is removed. More preferably, in order to reduce or eliminate the risk of kick back, the additional clamping force may only be released once the working portion has stopped moving, or after a predetermined period of time. Any suitable predetermined period of time may be used. For instance, the predetermined period of time may be between 1 second and 10 seconds. More preferably, the predetermined period of time may be between 1 second and 7 seconds. More preferably, the predetermined period of time may be between 1 second and 5 seconds. More preferably, the predetermined period of time may be between 1 second and 3 seconds

[0144] Thus, even if the user releases the retention portion from the workpiece, the workpiece may still be retained in place, at least for a period of time, to reduce or eliminate the chance of kick back.

[0145] While the present invention is directed to an accessory to a power tool, the skilled addressee will appreciate that the teachings disclosed herein may be applied to other types of mechanical equipment, where stabilising or securing objects is required, such as in welding, assembly, or machining operations.

[0146] Any of the features described herein can be combined in any combination with any one or more of the other features described herein within the scope of the invention.

[0147] The reference to any prior art in this specification is not, and should not be taken as an acknowledgement or any form of suggestion that the prior art forms part of the common general knowledge.BRIEF DESCRIPTION OF DRAWINGS

[0148] Preferred features, embodiments and variations of the invention may be discerned from the following Detailed Description which provides sufficient information for those skilled in the art to perform the invention. The Detailed Description is not to be regarded as limiting the scope of the preceding Summary of Invention in any way. The Detailed Description will make reference to a number of drawings as follows:

[0149] Figure 1 is a perspective view of an accessory for a power tool, in accordance with one embodiment of the present invention.

[0150] Figure 2 is an exploded view of the intermediate member of the accessory shown in Figure 1 .

[0151] Figure 3 is a left-front view of the accessory and the power tool shown in Figure 1.

[0152] Figure 4 is a side view of the accessory of Figure 1 retaining different workpieces.

[0153] Figure 5 is an exploded view of the accessory shown in Figure 1.

[0154] Figure 6 is a perspective view of an accessory for a power tool, in accordance with another embodiment of the present invention.

[0155] Figure 7 is an exploded view of the intermediate member of the accessory shown in Figure 6.

[0156] Figure 8 illustrates the accessory and the power tool according to an embodiment of the present invention shown in an angled position.

[0157] Figure 9 is an exploded view of the retention portion of the accessory shown in Figure 6.

[0158] Figure 10 is an exploded view of the gripping portion of the accessory according to an embodiment of the invention.DETAILED DESCRIPTION

[0159] Figures 1 to 5 and 8 illustrate an embodiment of an accessory 100 for a power tool 800, shown as a circular saw in Figures 1 and 3. Figures 6, 7, 9 and 10 depict the accessory 100 with slightly different components. Identical or similar components are assigned the same or similar reference numbers in Figures 1 to 10.

[0160] The power tool 800 includes a working portion 850 (illustrated in Figures 1 , 3, 6 and 8) that is configured to act upon a workpiece 160 (illustrated in Figures 3, 4 and 8). The working portion 850 comprises a sawblade. The present invention is configured to occupy a user’s free hand during operation of the power tool 800 so that the likelihood of the user’s hand coming into contact with the working portion 850 during usage of the power tool 800 is reduced or eliminated.

[0161] Referring to Figures 1 and 6, the accessory 100 for the power tool 800 comprises an intermediate member 120 associated with an elongate member 1 10 configured for connection to the power tool 800. The intermediate member 120 comprises a housing configured for attachment to the power tool 800 and, more specifically, to an upper portion 801 of the power tool 800 that is configured to pivot relative to a base portion 802 of the power tool 800 that is located on a support (not shown).

[0162] The housing 120 comprises a passage therethrough through which the elongate member 1 10 passes. A portion of the elongate member 1 10 is located rearwardly of the housing 120, while a portion of the elongate member 1 10 is located forward of the housing 120. The portion of the elongate member 110 located rearwardly of the housing 120 includes a stop member 121 located on an end of the elongate member 1 10. The stop member 1 11 is of a greater size than the aperture in the housing 120 and is thus prevented from entering the housing 120 as the elongate member 1 10 is pulled forward of the housing 120. Instead, when the elongate member 110 is pulled forwards, the stop member 1 11 abuts the housing 120, and therefore the stop member 1 11 defines the limit of forward movement of the elongate member 110 relative to the housing 120.

[0163] A retention portion 140 is associated with the elongate member 110. In use, the retention portion 140 is configured to be placed in abutment with a workpiece 160 (not shown in Figure 1 or 6) to retain the workpiece 160 in place relative to the power tool 800. In the embodiment of the invention illustrated in Figure 1 , the retention portion 140 includes an engagement member 145 configured to abut the workpiece 160 in use.

[0164] The accessory 100 further comprises a gripping portion 170 associated with an end of the elongate member 110 (and, more specifically, the opposed end of the elongate member110 to the stop member 121 . The gripping portion 170 is configured to occupy a hand of a user during use of the power tool 800, as a user will be required to hold the gripping portion 170 to maintain contact between the retention portion 140 and the workpiece 160 while the power tool 800 is in use.

[0165] The elongate member 110 is configured for sliding movement relative to the intermediate member 120 and the power tool 800 between a storage condition and a plurality of use conditions in which the retention member 140 engages the workpiece 160 to retain the workpiece 160 in place relative to the power tool 800. It is envisaged that, in the storage condition, the gripping portion 170 is moved rearwardly towards the housing 120. Conversely, when the elongate member 110 moves from the storage condition to the plurality of use conditions, the elongate member 110 is moved in a forwards direction such that the stop member 121 approaches the housing 120.

[0166] Referring to Figures 2 and 7, the intermediate member 120 comprises one or more retaining portions 122 configured to retain the elongate member (not shown in this Figure) in a passageway 123 formed within the intermediate member 120. This configuration allows the elongate memberto be retained in place within the intermediate member 120 while still enabling sliding movement of the elongate member relative thereto.

[0167] The one or more retaining portions 122 are typically constructed from materials such as metal, polymeric material, rubber or composite materials. The elongate member will typically be held in place on the retaining portions 122 via a frictional engagement. In this way, a user can overcome the frictional engagement by applying a force to the elongate member, thereby moving the elongate member relative to the intermediate member 120 and the power tool.

[0168] Still referring to Figures 2 and 7, the intermediate member 120 includes frictionreducing elements 124 to in retaining the elongate member, while also allowing the elongate member to slide relative to the retaining portions 122. The friction-reducing elements 124 may be composed of materials such as polytetrafluoroethylene (PTFE), acetal, or nylon. The surfaces of the friction-reducing elements 124 may be textured or patterned to further enhance both retention and sliding movement. The friction-reducing elements 124 may also dampen vibrations transmitted from the power tool 800 to the elongate member.

[0169] The one or more retaining portions 122 may include alignment mechanisms, such as grooves, to ensure precise positioning of the elongate member and prevent unintended shifting during operation.

[0170] Still referring to Figures 2 and 7, the intermediate member 120 is connected to thepower tool 800 using bolt 126 and a washer 128. It is envisaged that the washer 128 may act as a dampening element to absorb and dampen vibrations generated by the power tool 800 during use. The washer 128 also serves to protect the surface of the power tool 800 from wear and abrasion that may arise from repeated tightening and loosening of the intermediate member 120.

[0171] The washer 128 further contributes to the flexibility of the intermediate member’s 120 grip on the elongate member. For example, the washer can be made from a compressible or elastomeric material which allows for a degree of compliance when the bolt 126 is tightened. This compliance permits controlled flexing or slight movement of the intermediate member 120, enabling it to adapt its grip on the elongate member in response to vibrations, thermal expansion, or operational forces.

[0172] The washer 128 may be made from any suitable vibration-dampening and elastomeric materials, such as Teflon, acetyl, nylon, polymer, or a composite material. Alternatively, the washer 128 may be coated with suitable materials (such as Teflon) to minimise wear and friction during the tightening and loosening of the intermediate member 120.

[0173] In Figures 2 and 7, the retaining portions 122 are configured to rotate about pivot pin 129, thereby allowing the elongate member (not shown in these Figures) to move substantially vertically relative to the power tool.

[0174] Referring to Figure 4, the elongate member 1 10 is further configured for substantially vertical movement relative to the power tool 800. Thus, the elongate member 110 is configured to both slide relative to the power tool 800 and move substantially vertically relative to the power tool 800. To achieve this, the intermediate member 120 is configured to rotate relative to the power tool 800. The intermediate member may be configured to rotate up to 360°.

[0175] As illustrated in Figure 4, the elongate member 110 may slide different distances relative to the intermediate member 120 to engage workpieces 160 of different sizes and shapes. In addition, the elongate member 1 10 may move different distances in a substantially vertical direction relative to the power tool (not shown in this Figure) to engage workpieces 160 of different sizes and shapes. Thus, the engagement member 110 may be placed in a plurality of use conditions so as to secure workpieces 160 of different sizes and shapes in place during operation of the power tool.

[0176] Referring to Figures 1 , 3, 4 and 6, the accessory 100 includes a retention portion 140 associated with the elongate member 110, the retention portion 140 being configured to retain the workpiece 160 (shown in Figures 3 and 4) in place relative to the power tool 800.

[0177] Referring to Figure 1 or 6, the retention portion 140 includes an engagement member 145 configured for abutment with the workpiece 160. The engagement member 145 is configured, upon application of pressure to the accessory 100 by the user, to ensure that the workpiece 160 is substantially precluded from movement relative to the power tool 800.

[0178] Referring to Figure 5, the engagement member 145 comprises a steel section in the form of a cylinder, and in particular a steel cylinder. In use, the engagement member is at least partially surrounded by a friction-enhancing element 147 in the form of a rubber or polymeric sleeve or grip portion. The friction-enhancing element is configured to enhance the contact between the engagement member 145 and the workpiece, thereby reducing or eliminating movement of the workpiece relating to the engagement member 145.

[0179] Still referring to Figure 5, the retention portion 140 includes a locking mechanism 149 that is operatively associated with the engagement member 145. The locking mechanism 149 allows the user to immobilise the engagement member 145, rendering it non-moveable. By locking the engagement member 145 in place, the workpiece 160 may be precluded from movement relative to the power tool 800.

[0180] For example, the locking mechanism 149 may be actuated as a switch that is activated when a predetermined downward force is applied to the grip portion 170. Upon activation, the switch immobilises the engagement member 145, thereby securely locking the workpiece 160 in position. The application of the downward force may be manual, such as by pressing or squeezing the grip portion 170, or automated, depending on the configuration of the accessory 100.

[0181] This force-sensitive activation provides a convenient method for the user to engage the locking mechanism 149 without the need for separate latches, knobs, or additional tools. The mechanism may include a spring-loaded or cam-based assembly that ensures positive engagement once the required force threshold is reached, offering tactile feedback to confirm that the lock mechanism 149 has been successfully engaged. The locking mechanism 149 is designed to release when the force on the grip portion 170 is removed or reversed, allowing for quick repositioning of the engagement member 145 and rapid adjustment of the workpiece 160.

[0182] Further, a screw 144 is associated with the engagement member 145, allowing the required activation force to be adjusted. Specifically, adjusting the position of the screw 144 relative to the engagement member 145 adjusts the pressure that a user must apply to the accessory 100 in order to actuate the power tool 800.

[0183] Referring to Figure 9, the engagement member 145 comprises a grip portion 150.The grip portion 150 includes one or more protrusions 155 configured to engage the workpiece 160. The protrusions 155 are in the form of teeth or serrated projections. The protrusions 155 are arranged and / or oriented to provide a secure engagement with the workpiece 160. It is envisaged that when the grip portion 150 contacts the workpiece 160, the teeth 155 create multiple points of contact, thereby enhancing the overall grip strength and preventing slippage or movement during the use of the power tool 800.

[0184] The protrusions 155 are coated with a friction-enhancing material, such as rubber, polyurethane, or a high-friction polymer, to further improve their gripping capabilities while reducing the risk of surface damage to the workpiece 160.

[0185] Referring to Figure 5 or 9, the engagement member 145 is connected to the elongate member 110 via an intermediate member 148. The intermediate member 148 comprises an arm that is connected to the elongate member 110 at or adjacent a first end thereof, and to the engagement member 145 at or adjacent an opposed second end thereof. The arm 148 serves as a support structure for the engagement member 145, which is configured to engage with a workpiece 160. The arm 148 is formed separately to the elongate member 1 10 and is configured for fixed or removable connection thereto.

[0186] The arm 148 is constructed with a generally elongate form. Its shape may be linear, angular, or have a curved profile depending on the desired range of motion and the specific functionality of the accessory 100.

[0187] Referring to Figure 9, the arm 148 is attached to the elongate member 1 10 through mechanical fastening members, such as bolts.

[0188] Referring to Figure 5, the engagement member 145 possesses a relatively high friction surface or material 147 designed to securely hold the workpiece 160 in place, preventing slippage or unintended movement during the operation of the power tool 800.

[0189] In use, it is envisaged that a user may place a workpiece 160 relative to the working portion 850 of the power tool 800. The user then moves the elongate member 110 from the storage condition to the use condition in which the retention portion 140 engages with the workpiece 160. The force applied by the user to the workpiece 160 via the retention portion 140 should be sufficient to preclude movement of the workpiece 160 relative to the power tool 800.

[0190] Referring to Figure 4, a force is applied by a user to the workpiece 160 through the retention portion 140 to force the workpiece 160 into abutment with a stop member 171 . The stop member 171 comprises a fence or similar barrier provided on the power tool 800.Therefore, the accessory 100 is used to retain the workpiece 160 in place against the stop member 171 to substantially preclude movement of the workpiece 160 relative to the power tool 800 during operation of the power tool 800.

[0191] Referring to Figures 1 and 6, the accessory 100 includes a gripping portion 170 configured to occupy a hand of a user during use of the power tool 800. In general, the gripping portion 170 provides an interface for the operator to hold the accessory 100 while operating the power tool 800.

[0192] Referring to Figure 5, the gripping portion 170 comprises a protrusion 175 associated with the elongate member 1 10 that is configured to be held by the user. Referring to Figure 10, the gripping portion 170 is in the form of a handle 178. The handle 178 may feature contours, grooves, or ridges that align with the natural shape of the hand, enhancing the user’s grip during use.

[0193] The gripping portion 170 may be adjustable in length, angle, or position to accommodate operators with different hand sizes or preferences.

[0194] As seen in Figures 6 and 8, the accessory 100 of the present invention requires a user to use two hands to operate the power tool 800. A first hand engages the handle 178 of accessory and must apply sufficient pressure to the workpiece 160 via the engagement member 145 to maintain the workpiece in place on the lower portion 802 of the power tool 800. The user’s second hand must engage the handle 180 of the upper portion 801 of the power tool 800 not only to activate the sawblade 850 but also to pivot the upper portion 801 relative to the lower portion 802 so that the sawblade 180 is brought into contact with the workpiece 160.

[0195] Thus, in Figure 8 it may be seen that the elongate member 110 is not only configured for sliding and substantially vertical movement relative to the power tool 800, but it is also configured for pivoting or axial movement relative to the power tool 800 (or at least to the base portion 802 of the power tool 800). This movement allows a use to move the elongate member 110 and, as a result, the engagement member 145, to a position otherthan substantially parallel to the workpiece 160. In this way, an improved grip on an irregularly shaped workpiece may be achieved 160. In addition, pivoting or axial movement of the elongate member 110 may also vary the angle of the sawblade 850 relative to the workpiece 160, thereby allowing cuts to be made on an angle to the vertical.

[0196] Referring to Figures 1 , 3, 4 and 6, the elongate member 110 is slidably moveable (i.e., in a direction co-axial with the longitudinal axis of the elongate member), and also moveable in a substantially vertical direction relative to the power tool 800 between a storage condition (asshown in Figures 1 and 6) and a use condition (as shown in Figures 3, 4 and 9) in which the retention member 140 engages the workpiece 160 to retains the workpiece 160 in place relative to the power tool 800. This extendable movement enables flexibility in the elongate member’s110 positioning and functionality.

[0197] The elongate member 110 may be retracted into a storage condition when not in use or extended outward in a use condition to engage with a workpiece 160 and retain the workpiece 160 in place relative to the power tool 800 during operation.

[0198] Referring to Figures 1 , 3, 4 and 6, the elongate member 110 operatively connected to the power tool 800 through the intermediate member 120 as described above, the elongate member 110 is configured to slide relative to the intermediate member 120. It is envisaged that this sliding capability provides flexibility in positioning the elongate member 110 during use, allowing for adjustments without fully detaching the elongate member 1 10 from the intermediate member 120.

[0199] Referring to Figure 5 or 6, the elongate member 110 includes a stop feature 11 1 positioned proximate to, or at, one or more ends of the elongate member 110. This stop feature111 is configured to prevent the elongate member 110 from being fully disengaged or removed from the intermediate member 120 during operation or adjustment.

[0200] The stop feature 111 takes the form of an enlarged portion integrally formed with or attached to the elongate member 1 10. The stop feature 111 is removable or adjustable, allowing for flexibility in its position along the elongate member 1 10.

[0201] Referring to Figures 1 to 4 and 6 to 7, the elongate member 110 is movable relative to the power tool 800 in a variety of suitable combinations of extension, retraction, and pivoting, thereby enabling the accessory 100 to engage workpieces 160 of different shapes, sizes, and orientations. The elongate member's 110 movement may include linear extension and retraction along a defined axis, pivoting around one or more pivot points, or a combination of both, allowing for greater flexibility and adaptability during use.

[0202] In general, these movements allow the accessory 100 to handle workpieces 160 with different geometries, such as irregular shapes, angled surfaces, or materials of varying thickness. The ability to extend, retract, and pivot ensures that the elongate member 1 10 can adjust to a wide range of workpieces 160 while maintaining stability and control, regardless of the workpiece's 160 position or orientation relative to the power tool 800. Furthermore, these adjustable movements enhance the usability of the accessory 100 in different operational contexts, such as making cuts, drilling, or sanding.

[0203] A skilled addressee would also appreciate that the movements of the elongate member 1 10 could be implemented either manually or through powered mechanisms such as actuators, or by utilising any suitable power source.

[0204] For manual operation, the elongate member 110 allows the operator to adjust its position relative to the power tool 800.

[0205] Figure 10 illustrates an exploded view of a gripping portion 170 according to an embodiment of the invention. In this embodiment, the handle 178 is configured for pivoting movement relative to the elongate member 1 10 about pivot pin 181.

[0206] A sensor in the form of a micro switch 182 is located on the elongate member 1 10 and is associated with a biasing member in the form of a leaf spring 183. In use, the leaf spring 183 contacts the workpiece (not shown in this Figure) and, on the application of sufficient pressure on the handle 178 by the user, the leaf spring 183 actuates the micro switch 182 which in turn actuates operation of the power tool. When insufficient pressure is applied to the workpiece via the handle 178, the leaf spring 183 disengages from the micro switch 182 and operation of the powertool ceases. In this way, if a user moves their hand away from the gripping portion 170 (and potentially into contact with a working part of the power tool) the power tool will cease operating and the chance of injury to the user is reduced or eliminated.

[0207] The position of the micro switch 182 is also illustrated in Figure 1 , and it will be understood that the micro switch 182 may assist in ensuring that the user uses the power tool 800 in such a manner as to reduce or eliminate the risk of injury. Specifically, when both actuation and continued operation of the power tool 800 are reliant on actuation of the micro switch 182, a user may be forced to keep one hand on the accessory 100 and one hand on the power tool 800 at all times during use. In this way, adjustment of the positioning of the workpiece 160 relative to the power tool 800 will result in the power tool 800 being deactivated, and activation of the power tool 800 can only be resumed once both of the user’s hands are again placed on the accessory 100 and the power tool 800 and the micro switch 182 is actuated.

[0208] A skilled addressee will understand that the presence of the micro switch is not required in all situations, as a user may simply maintain one hand on the accessory 100 and one hand on the power tool 800.

[0209] In the present specification and claims (if any), the word ‘comprising’ and its derivatives including ‘comprises’ and ‘comprise’ include each of the stated integers but does not exclude the inclusion of one or more further integers.

[0210] Reference throughout this specification to ‘one embodiment’ or ‘an embodiment’ means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearance of the phrases ‘in one embodiment’ or ‘in an embodiment’ in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more combinations.

[0211] In compliance with the statute, the invention has been described in language more or less specific to structural or methodical features. It is to be understood that the invention is not limited to specific features shown or described since the means herein described comprises preferred forms of putting the invention into effect. The invention is, therefore, claimed in any of its forms or modifications within the proper scope of the appended claims (if any) appropriately interpreted by those skilled in the art.

Claims

AMENDED CLAIMS received by the International Bureau on 30 March 2026 (30.03.2026)CLAIMS1. An accessory for a power tool comprising: an intermediate member configured for connection to the power tool; an elongate member associated with the intermediate member, the elongate member being configured for sliding movement relative to the intermediate member and the power tool between a storage condition and a plurality of use conditions, wherein the elongate member moves into the plurality of use conditions by sliding the elongate member forwards relative to the intermediate member and the power tool and one or more of moving the elongate member substantially vertically relative to the power tool or pivoting the elongate member about the longitudinal axis of the elongate member; a retention portion associated with the elongate member, the retention portion being configured, in the plurality of use conditions, to retain a workpiece in place relative to the power tool; and a gripping portion associated with a first end of the elongate member and configured to occupy a hand of a user during use of the power tool, the gripping portion including a switch mechanism configured to actuate operation of the power tool, wherein an opposed second end of the elongate member is located rearwardly of the intermediate member in the storage condition, and moves towards the intermediate member as the elongate member moves from the storage condition to the plurality of use conditions.

2. The accessory of claim 1 wherein the power tool comprises a lower portion configured to be located on a support surface and an upper portion that includes a working portion, the upper portion being hingedly or pivotally connected to the lower portion, and wherein the intermediate member is connected to the upper portion of the power tool.

3. The accessory of claim 1 or claim 2 wherein the intermediate member comprises a housing, and wherein the elongate member is at least partially received in the housing such that the first end of the elongate member is located forwardly of the intermediate member and the second end of the elongate member is located rearwardly of the intermediate member.

4. The accessory of any one of the preceding claims wherein the second end of the elongate member includes a stop member configured to define a limit of movement of the elongate member relative to the intermediate member into the plurality of use conditions.

5. The accessory according to any one of the preceding claims wherein the intermediatemember comprises a base portion configured for fixed connection to the power tool and a movable portion associated with the base portion and the elongate member and configured for movement relative to the base portion.

6. The accessory according to any one of the preceding claims wherein the intermediate member includes a pivoting mechanism configured to allow the elongate member to pivot or rotate relative to the power tool.

7. The accessory according to any one of the preceding claims wherein the retention portion includes an engagement member configured for abutment with the workpiece and configured, in use, to substantially preclude movement of the workpiece relative to the power tool.

8. The accessory according to claim 7 wherein, in use, a force is applied to the workpiece through the retention portion to force the workpiece into abutment with a stop portion, thereby substantially precluding movement of the workpiece relative to the power tool.

9. The accessory according to any one of the preceding claims wherein the gripping portion comprises a handle.

10. The accessory according to any one of the preceding claims wherein the power tool comprises a circular saw, drop saw, compound saw, jigsaw, table saw or drill press.

11. The accessory according to any one of the preceding claims wherein the accessory includes an actuation member.

12. The accessory according to claim 11 wherein the actuation member comprises a micro switch associated with the elongate member.

13. The accessory according to claim 12 wherein actuation of the power tool occurs when sufficient pressure is applied to the micro switch by a portion of the elongate member to actuate the micro switch.

14. The accessory according to any claim 13 wherein an adjustment member is associated with the micro switch, and wherein the adjustment member is configured to adjust the amount of pressure required to actuate the micro switch.

15. The accessory of claim 2 wherein the working portion comprises a sawblade.

16. A method for operating a power tool, the method comprising the steps of:Providing an accessory connected to the power tool, the accessory comprising an intermediate member configured for connection to the power tool, an elongate member associated with the intermediate member, the elongate member being configured for sliding movement relative to the intermediate member and the power tool between a storage condition and a plurality of use conditions, a retention portion associated with the elongate member, the retention portion being configured, in the plurality of use conditions, to retain a workpiece in place relative to the power tool and a gripping portion associated with a first end of the elongate member and configured to occupy ahand of a user during use of the power tool, the gripping portion including a switch mechanism configured to actuate operation of the power tool;Locating a workpiece in the vicinity of a working portion of the power tool;Moving the elongate member of the accessory relative to the power tool and the intermediate member from the storage condition to at least one of the plurality of use conditions, wherein the elongate member moves into the plurality of use conditions by sliding the elongate member forwards relative to the intermediate member and the power tool and one or more of moving the elongate member substantially vertically relative to the power tool or pivoting the elongate member about the longitudinal axis of the elongate member, such that the retention member of the accessory engages the workpiece and retains it in place relative to the power tool;Maintaining contact on the gripping portion of the accessory such that the workpiece is substantially precluded from movement relative to the power tool during operation of the power tool; andOperating the power tool such that a working portion of the power tool contacts the workpiece.

17. The method for operating a power tool according to claim 16 wherein the accessory is the accessory of any one of claims 1 to 15.

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