Multi-motion accessories

Abstract

Accessories that can be driven by a drive shaft (40), the accessories comprising the following: a fastening element (132) having a central axis (300), wherein the central axis (300) is perpendicular to a first surface of the fastening element (132); a connecting element (148) that is connected to at least the fastening element (132); a locking element (110) that is movable into at least (a) a locked position in which the locking element (110) engages with the fastening element (132) such that the fastening element (132) is configured to rotate about the central axis (300), and (b) an unlocked position in which the locking element (110) is disengaged from the fastening element (132) such that the fastening element (132) is configured to rotate about an eccentric axis (400), the eccentric axis (400) being offset from the central axis (300); and an eccentric element (116) which includes a first opening (124) which receives the locking element (110), a second opening (126) which receives the drive shaft (40), and a third opening (128) which receives the connecting element (148), wherein the second opening (126) of the eccentric element (116) is designed such that it is aligned with the central axis (300) of the fastening element (132), and the third opening (128) of the eccentric element (116) is designed such that it is aligned with the eccentric axis (400) of the fastening element (132), wherein the fastening element (132) comprises an inner rib (146A) and an outer rib (146B), wherein the inner rib (146A) extends around an inner region of the fastening element (132) and the outer rib (146B) extends around an edge region of the fastening element (132), wherein radial ribs (146C) extend from the inner rib (146A) to the outer rib (146B).

Description

AREA OF INVENTION

[0001] This disclosure relates generally to accessories and in particular to fastening arrangements for power tools. BACKGROUND

[0002] Generally, there are several power tools that can be used for cleaning. However, these power tools have a number of disadvantages. For example, they may be limited to a specific type of movement or may have relatively complex drive units and / or mechanical structures to provide more than one type of movement.

[0003] DE 198 20 873 A1 discloses an electrical hand tool with an insert tool that can be driven by means of a rotating working shaft and performs a rotating, circular and / or oscillating movement.

[0004] US Patent 2010 / 0151775A1 discloses a detachable head assembly for a combination rotary device comprising a body, a rotatable element connected to the body with a recess or projection for attaching a pad assembly to the rotatable element, and a locking assembly comprising a first and a second element.

[0005] WO 02 / 068 151 A1 discloses a grinding tool which can be selectively configured for grinding or eccentric operation without a reversible motor. SUMMARY

[0006] The following is a summary of certain embodiments, which are described in more detail below. The aspects described are presented merely to give the reader a brief overview of these particular embodiments, and it is not intended that the description of these aspects limits the scope of this disclosure. In fact, this disclosure may include a variety of aspects that may not be explicitly set forth below.

[0007] In one embodiment, an accessory comprises a fastener, a connecting element, a locking element, and an eccentric element. The fastener has a central axis perpendicular to a first surface of the fastener. The connecting element is connected to at least the fastener. The locking element is movable into at least (a) a locked position in which the locking element engages with the fastener such that the fastener is configured to rotate about the central axis, and (b) an unlocked position in which the locking element is disengaged from the fastener such that the fastener is configured to rotate about an eccentric axis. The eccentric axis is offset from the central axis.The eccentric element contains a first slot that receives the locking element, a second slot that receives a drive shaft, and a third slot that receives the connecting element. The second slot of the eccentric element is designed to align with the central axis of the fastener. The third slot of the eccentric element is designed to align with the eccentric axis of the fastener.

[0008] In one embodiment, a device comprises at least one drive shaft, a motor, and an accessory. The motor is configured to drive the drive shaft. The accessory is driven by the drive shaft. The accessory comprises a fastener, a connecting element, a locking element, and an eccentric element. The fastener has a central axis perpendicular to a first surface of the fastener. The connecting element is connected to at least the fastener.The locking element is movable into at least (a) a locked position in which the locking element engages with the fastener such that the fastener is configured to rotate about its central axis, and (b) an unlocked position in which the locking element is disengaged from the fastener such that the fastener is configured to rotate about an eccentric axis. The eccentric axis is offset from the central axis. The eccentric element includes a first slot that receives the locking element, a second slot that receives the drive shaft, and a third slot that receives the connecting element. The second slot of the eccentric element is configured to be aligned with the central axis of the fastener.The third slot of the eccentric element is designed so that it aligns with the eccentric axis of the fastening element.

[0009] These and other features, aspects and advantages of the present invention are set out by the following detailed description of certain exemplary embodiments with reference to the accompanying figures, in which identical symbols represent identical parts. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1A is a perspective view of a power tool with a multi-motion accessory according to an embodiment of this disclosure. Fig. Figure 1B is another perspective view of a power tool with a multi-motion accessory according to an embodiment of this disclosure. Fig. Figure 2 is an exploded view of a multi-motion accessory according to an embodiment of this disclosure. Fig. Figure 3 is a perspective view of a multi-motion accessory in a locked state according to an embodiment of this disclosure. Fig. Figure 4 is a perspective view of a multi-motion accessory in an unlocked state according to an embodiment of this disclosure. Fig. Figure 5 is a diagram of a path of a multi-motion accessory in a first mode and a path of the multi-motion accessory in a second mode according to an embodiment of this disclosure. Fig. Figure 6 is a perspective view of a power tool with a multi-motion accessory that includes a limiting mechanism according to an embodiment of this disclosure. DETAILED DESCRIPTION

[0010] The embodiments described above, which have been shown and described by way of example, and many of their advantages become clear from the preceding description. It is evident that various changes can be made to the shape, structure, and arrangement of the components without deviating from the disclosed subject matter or sacrificing one or more of its advantages. In fact, the described forms of these embodiments serve only for illustrative purposes. These embodiments are modifiable through various modifications and alternative forms, and the following claims are intended to encompass and include these modifications and are not limited to the disclosed, specific forms, but rather cover all modifications, correspondences, and alternatives falling within the nature and scope of this disclosure.

[0011] Fig. 1A and Fig. Figure 1B shows perspective views of a device 10. In one embodiment, the device 10 is a power tool 20 with a multi-motion accessory 100. In one embodiment, the power tool 20 is handheld and portable. In one embodiment, the power tool 20 contains a motor 30, which is arranged within a housing of the power tool 20 and thus in the Fig. 1A and Fig. 1B is not explicitly visible. In one embodiment, the motor 30 is configured to drive the multi-motion accessory 100 via a drive shaft 40 connected to the motor 30. In one embodiment, the drive shaft 40, when driven by the motor 30, provides a rotary motion. In one embodiment, the multi-motion accessory 100 is connectable to a portion of the drive shaft 40 that extends beyond the housing of the power tool 20. In one embodiment, the multi-motion accessory 100 is connected as shown in Fig. 1A and Fig. Figure 1B shows the multi-motion accessory 100 separately from the housing of the power tool 20 and is located externally from it. In one embodiment, the multi-motion accessory 100 can also be attached to and detached from the power tool 20.

[0012] In one embodiment, the multi-motion accessory 100 is configured to provide a variety of modes corresponding to a variety of movements when driven by the drive shaft 40. For example, in one embodiment, the multi-motion accessory 100 is configured to provide at least one first mode comprising a rapid rotary movement and a second mode comprising a random orbital movement. The multi-motion accessory 100 is also configured in another embodiment to provide a third mode comprising an orbital movement. Accordingly, the multi-motion accessory 100 is advantageous in that it can provide different modes with different movements via the drive shaft 40 of the power tool 20 without requiring other drive components in the drive unit of the power tool 20 to achieve these different movements.

[0013] Fig. Figure 2 is a perspective view of the multi-motion accessory 100 according to an exemplary embodiment. In an exemplary embodiment, as shown in Fig. As shown in Figure 2, the multi-motion accessory 100 includes at least one locking element 110, one eccentric element 116, one bearing 130, one fastening element 132, and one connecting element 148. Furthermore, the multi-motion accessory 100, as shown in Figure 2, includes at least one locking element 110, one eccentric element 116, one bearing 130, one fastening element 132, and one connecting element 148. Fig. Figure 2 shows the locking element 110 constructed to accommodate an additional device 154. In one embodiment, the locking element 110 is configured to provide a locked state and an unlocked state between the eccentric element 116 and the fastening element 132. In another embodiment, the locking element 110 is constructed and / or positioned to counteract or compensate for a load imbalance caused by, for example, at least the bearing 130, the fastening element 132, the connecting element 148, the additional device 154, or any combination thereof. In one embodiment, the locking element 110 is connected to and supported by the eccentric element 116. In another embodiment, the locking element 110 is a locking screw, a locking bolt, a sleeve, or any suitable connecting element. For example, in Fig. 2 The locking element 110 is an elongated connecting element comprising at least one head section 112 and one shaft section 114. In one embodiment, the locking element 110 comprises a plastic material, a metal material, a suitable material, or any combination thereof. In one embodiment, the head section 112 is configured to bear against a surface 118 of the eccentric element 116 such that the head section 112 acts as a stop. Also in one embodiment, the shaft section 114 is configured to pass through a first slot 124 of the eccentric element 116. The shaft section 114 has a length that is longer than the thickness of the eccentric element 116 along a vertical axis 200 so that the locking element 110 can interact with a locking section 140 of the fastening element 132.For reference, the vertical axis 200 is perpendicular to a horizontal axis 202, as in . Fig. 2 shown.

[0014] In one embodiment, the eccentric element 116 comprises at least one mechanical structure configured to interact with at least the locking element 110, the drive shaft 40, and the connecting element 148. In another embodiment, the eccentric element 116 is designed as a self-contained unit that functionally connects at least the locking element 110, the drive shaft 40, and the connecting element 148. In another embodiment, the eccentric element 116 comprises a plastic material, a metal material, any suitable material, or any combination thereof. For example, in Fig. 2 the eccentric element 116 is made of at least one plastic material. Also, in an embodiment as in Fig. Figure 2 shows the eccentric element 116 constructed with a plurality of slots, comprising at least a first slot 124, a second slot 126, and a third slot 128. In one embodiment, the plurality of slots on the eccentric element 116 is arranged such that a longitudinal axis (or central axis) of the second slot 126 lies between a longitudinal axis (or central axis) of the first slot 124 and a longitudinal axis (or central axis) of the third slot 128 along the surface 118 of the eccentric element 116, thereby positioning at least a portion of the drive shaft 40 between the locking element 110 and the connecting element 148. For reference, see Figure 2. Fig. 2 the longitudinal axes (or central axes) of the first slot 124, the second slot 126 and the third slot 128 parallel to the vertical axis 200.

[0015] In one embodiment, the distances between the individual slots can vary from the multitude, provided they can perform the functions described herein. For example, in Fig. 2. The distance between the second slot 126 and the third slot 128 is less than the distance between the first slot 124 and the second slot 126. With this slot arrangement, the drive shaft 40 is positioned closer to the connecting element 148 than to the locking element 110. In one embodiment, this feature also allows, since the second slot 126 is located inside the support sleeve 122 of the eccentric element 116 and adjacent to the surface 118, as shown in Fig. Figure 2 shows that at least one section of the second slot 126 overlaps at least one section of the third slot 128, while maintaining an offset between the longitudinal axis of the second slot 126 and the longitudinal axis of the third slot 128. This arrangement is advantageous in reducing vibrations of the fastener 132 when driven by the drive shaft 40, while also providing a space-saving effect. Furthermore, the distance between the first slot 124 and the second slot 126 is adjusted with respect to at least the distance between the second slot 126 and the third slot 128, and / or considerations related to ensuring that the multi-motion accessory 100 operates in a balanced and controlled manner.

[0016] In one embodiment, the first slot 124 is designed to accommodate the locking element 110. In another embodiment, the first slot 124 extends from a surface 118 on a first side of the eccentric element 116 to an opposite surface 120 on a second side of the eccentric element 116. In this respect, for example, the first slot 124 includes a through-hole in the eccentric element 116, as shown in Fig. Figure 2 shows that in one embodiment, the first slot 124 is designed to accommodate at least a portion of the shaft section 114 of the locking element 110. In another embodiment, the first slot 124 is designed to provide minimal and sufficient clearance so that the locking element 110 is supported by the eccentric element 116 and can be moved into a locked and an unlocked position. In this respect, the locking element 110 is, for example, movable along the vertical axis 200 within the first slot 124.

[0017] In one embodiment, the second slot 126 is designed to accommodate the drive shaft 40 of the power tool 20. For example, in Fig. 2 The second slot 126 is defined within a support sleeve 122, which is a cylindrical structure projecting outwards from the surface 118 of the eccentric element 116. In this respect, the opening for the second slot 126 is on a different plane than the opening for the first slot 124 and the opening for the third slot 128. Also, in an embodiment as in Fig. Figure 2 shows the drive shaft 40 positioned on a first side of the eccentric element 116, while the bearing 130 and the fastening element 132 are positioned on a second side of the eccentric element 116. In one embodiment, the second slot 126 also includes threads provided within an inner surface of the support sleeve 122, so that the drive shaft 40 is securely connected to the eccentric element 116.

[0018] In one embodiment, the third slot 128 is designed to receive the connecting element 148. In particular, in one embodiment, the third slot 128 is designed to engage with the connecting element 148 in such a way that the fastening element 132 and the bearing 130 are secured to the eccentric element 116. In one embodiment, the third slot 128 is defined from the surface 118 on the first side of the eccentric element 116 to the opposite surface 120 on the second side of the eccentric element 116. In this respect, for example, the third slot 128 includes a through-hole in the eccentric element 116, as shown in Fig. Figure 2 shows. Alternatively, the third slot 128 can be a groove or a cavity in the eccentric element 116 with at least one opening facing the fastening element 132. In one embodiment, the third slot 128 is designed to accommodate the connecting element 148 in any suitable orientation (e.g., first orientation with the shank section 150 above the head section 152, or second orientation with the head section 152 above the shank section 150).

[0019] In one embodiment, the bearing 130 is any suitable type of bearing, device, or means that reduces friction to facilitate movement of the fastening element 132 with respect to the eccentric axis 400. Fig. In 2, the bearing 130 is, for example, a roller bearing or a plain bearing (e.g., a bushing). In one embodiment, the bearing 130 is centered around the eccentric axis 400. In another embodiment, the bearing 130 is positioned adjacent to the surface 120 of the eccentric element 116. Also in another embodiment, the bearing 130 is arranged within a guide slot 138 of a fastening section 142 of the fastening element 132. In another embodiment, the bearing 130 includes a central area with a through-hole configured to receive the connecting element 148. In another embodiment, the bearing 130 is concentric with at least the connecting element 148 so that the fastening element 132 can move relative to the eccentric axis 400.

[0020] In one embodiment, the fastening element 132 is designed to receive and hold an accessory device 154 via any suitable connecting element or adhesive. In this respect, the fastening element 132 is a mechanical structure comprising a plastic material, any suitable material, or any combination thereof. As a non-limiting example, in Fig. 2. Both the fastening element 132 and its accessory 154 have suitable and / or corresponding shapes in plan view, in particular a circular or round shape. Furthermore, the accessory 154 is attachable to and detachable from the fastening element 132. For example, the accessory 154 is a surface treatment element, such as a cleaning pad, a sanding pad, a grinding pad, a sponge, a polishing pad, a brush, an abrasive, any suitable object, or any combination thereof. As a non-limiting example, in Fig. 2. The accessory 154 is a friction pad that can be attached to and detached from the fastening element 132 via hook and loop fasteners. For example, the hook and loop fasteners are arranged on a first side 156 of the accessory 154 to engage with corresponding hook and loop fasteners on a second side of the fastening element 132. In this non-limiting example, a frictional surface is also arranged on a second side 158 of the accessory 154 to engage with the workpiece.

[0021] In one embodiment, the fastening element 132 includes an inner area. Fig. 2 For example, the inner area is supported and enclosed by an inner rib 146A. In one embodiment, the inner area includes a central axis 300 of the fastening element 132. As in Fig. As shown in Figure 3, the central axis 300 is perpendicular to at least one surface 134 of the fastening element 132. Furthermore, the central axis 300 extends parallel to the vertical axis 200. In one embodiment, the central axis 300 of the fastening element 132 aligns with at least one longitudinal axis or a drive axis of the drive shaft 40 through the second slot 126 of the eccentric element 116 when the locking element 100 is in the locked state. Also in one embodiment, the inner area includes at least the locking section 140 and the fastening section 142.

[0022] In one embodiment, the locking section 140 is designed to interact with the locking element 110. To enable this interaction, the locking section 140 and the first slot 124 are configured to align with each other. In one embodiment, the locking section 140 includes a locking slot 136 designed to receive the locking element 110 such that the fastening element 132 is secured to the eccentric element 116. Fig. 2 For example, the locking section 140 includes a mechanical structure, such as a sleeve, that projects outwards from the surface 134 and contains the locking slot 136. In one embodiment, the locking section 140 is offset from the central axis 300 of the fastening element 132. Furthermore, the locking section 140 is positioned along the surface 134 of the fastening element 132 adjacent to the fastening section 142.

[0023] In one embodiment, the fastening section 142 is designed to accommodate the connecting element 148, which connects the fastening element 132 to the eccentric element 116. In another embodiment, the fastening section 142 is designed to accommodate the bearing 130 to facilitate movement of the fastening element 132 with respect to the eccentric axis 400. With reference to Fig. Figure 2 includes, for example, the fastening section 142, a guide slot 138 designed to receive the bearing 130 on the surface 134 and / or on a first side of the fastening element 132. In this example, the bearing 130 can be positioned in the guide slot 138 and / or fitted by pressing. Furthermore, as shown in Fig. Figure 2 shows the guide slot 138 and the bearing 130 as through holes designed to accommodate at least one shaft section 150 of the connecting element 148. In one embodiment, the fastening section 142 also includes a mechanical structure, such as a sleeve, that projects outward from the surface 134 and contains the guide slot 138. In another embodiment, the fastening section 142 (or a longitudinal axis or central axis thereof) is offset from the central axis 300 of the fastening element 132. In particular, as shown in Fig. 2 shown, the fastening section 142 is constructed such that it is aligned with at least the third slot 128 so that the connecting element 148 can connect the fastening element 132 to the eccentric element 116 or can connect both the fastening element 132 and the bearing 130 to the eccentric element 116.

[0024] In one embodiment, the fastening element 132 includes an outer region that surrounds the inner region. In this respect, the outer region extends, for example, from the inner rib 146A to the outer rib 146B. In an embodiment as shown in Fig. As shown in Figure 2, the outer rib 146B is positioned at an edge region of the fastening element 132. In one embodiment, the outer region provides an additional surface area for an accessory 154 (e.g., a surface treatment element) and is simultaneously durable, lightweight, and cost-effective. In another embodiment, the outer region includes a plurality of through-holes 144. The plurality of through-holes 144 is designed to prevent load imbalance, thereby preventing any undesired or unwanted vibrations in the fastening element 132. The through-holes 144 are also advantageous, for example, in reducing the weight, material, and cost of the fastening element 132.

[0025] In one embodiment, the multitude of ribs 146 provides support and rigidity for the fastening element 132. For example, as shown in Fig. Figure 2 shows the plurality of ribs 146 provided at least on the surface 134 of the fastening element 132. In one embodiment, the plurality of ribs 146 includes at least the inner rib 146A and the outer rib 146B. In one embodiment, the inner rib 146A extends around the inner region of the fastening element 132, while the outer rib 146B extends around the edge region of the fastening element 132. Also in one embodiment, the plurality of ribs 146 includes one or more radial ribs 146C. In one embodiment, as shown in Fig. As shown in Figure 2, the radial ribs 146C extend from at least the inner rib 146A to the outer rib 146B. In one embodiment, the radial ribs 146C are also evenly spaced apart along the surface 134 of the fastening element 132.

[0026] In one embodiment, the connecting element 148 is any suitable mechanical connecting device designed to connect the fastening element 132 to the eccentric element 116. In another embodiment, the connecting element 148 is designed to connect at least the bearing 130 to the eccentric element 116 and the fastening element 132. For example, in Fig. 2. The connecting element 148 comprises at least one head section 152 and one shank section 150. In one embodiment, the head section 152, when in the first orientation, is configured to abut a section of the fastening element 132 in order to connect the fastening element 132 to at least the eccentric element 116 and / or the bearing 130. In another embodiment, the shank section 150 is configured to pass through the corresponding through-holes of the fastening element 132 and the bearing 130. Furthermore, the shank section 150 is designed to engage in the third slot 128.

[0027] Fig. Figure 3 is a perspective view of the multi-motion accessory 100 in the locked state according to an exemplary embodiment. In this embodiment, the eccentric element 116 is moved and / or positioned about the eccentric axis 400 to transition into the locked state such that the locking element 110 aligns with the locking slot 136. In this respect, the first slot 124 aligns with the locking slot 136. Furthermore, to transition into the locked state, the locking element 110 is moved along the vertical axis 200 in a direction towards the locking slot 136 such that the locking element 110 is fully engaged with the locking slot 136. In the locked state, the locking element 110 secures the eccentric element 116 to the fastening element 132. More precisely, in Fig. 3 The shaft section 114 of the locking element 110 is secured within the locking section 140 of the fastening element 132. Accordingly, in this locked state, the power tool 20 is configured to drive the multi-motion accessory 100 such that the fastening element 132 moves relative to the central axis 300, which is aligned with the drive axis of the drive shaft 40.

[0028] Fig. Figure 4 is a perspective view of the multi-motion accessory 100 in the unlocked state according to an exemplary embodiment. In this embodiment, the locking element 110 is moved along the vertical axis 200 in a direction away from the locking slot 136 to transition to the unlocked state, such that the locking element 110 is completely disengaged from the locking slot 136. In this respect, the locking element 110 is separated from the locking slot 136 as shown in Figure 4. Fig. 4 shown, spaced apart. Furthermore, the eccentric element 116 can be moved and / or positioned about the eccentric axis 400 such that the locking element 110 is not aligned with the locking slot 136. For example, in Fig. 4. The first slot 124 is not engaged with the locking section 140. In the unlocked state, the shaft section 114 of the locking element 110 is disengaged from the locking section 140 of the fastening element 132. Accordingly, in this unlocked state, the power tool 20 is configured to drive the multi-motion accessory 100 such that the fastening element 132 can move freely relative to at least the eccentric axis 400, which is offset from the central axis 300 (and consequently from the drive axis of the drive shaft 40).

[0029] Fig. Figure 5 is a diagram of at least one path 310 of the multi-motion accessory 100 in the first mode and at least one path 410 of the multi-motion accessory 100 in the second mode according to an exemplary embodiment. In this example, the multi-motion accessory 100 is in the first mode when the locking element 110 is in the locked state. In this first mode, the fastener 132 moves or rotates relative to the central axis 300 (or the drive axis of the drive shaft 40 due to its alignment with the central axis 300). Furthermore, in this example, the multi-motion accessory 100 is in the second mode when the locking element 110 is in the unlocked state. In this second mode, the fastener 132 moves or rotates relative to at least the eccentric axis 400. Regarding this, as shown in Figure 5, the multi-motion accessory 100 is in the second mode when the locking element 110 is in the unlocked state. Fig. Figure 5 shows that the path 410 of the second mode, which is assigned to at least the eccentric axis 400, is offset to the path 310 of the first mode, which is assigned to the central axis 300.

[0030] In one embodiment, the first mode comprises a rapid rotary movement in which the locking element 110 is locked to the fastening element 132. In this first mode, the multi-motion accessory 100 is configured to move the fastening element 132 along path 310. For this purpose, for example, the fastening element 132 and / or path 310 and the central axis 300 (or the drive axis) are concentric, allowing the fastening element 132 to rotate in a circular, unbalanced manner when driven by the drive shaft 40. Also, in one embodiment, the speed of the fastening element 132 during a rapid rotary movement in the first mode is higher than the speed of the fastening element 132 during a random orbital movement in the second mode.With this higher speed, this first mode is advantageous in providing a surface treatment on a workpiece that is more aggressive than that of the second mode. In one embodiment, the fastener 132, when locked, is configured to move with respect to the central axis 300 of the fastener 132 (and / or the drive axis of the drive shaft 40 due to the alignment of the second slot 126 with the central axis 300). When the fastener 132 is locked, it is also locked (and thus restricted) against movement relative to the eccentric axis 400.

[0031] In one embodiment, the second mode comprises a random orbital movement in which the locking element 110 is in the unlocked state with the fastening element 132. In this second mode, the multi-motion accessory 100 is configured to move the fastening element 132 along at least the path 410. In this respect, for example, the fastening element 132 and / or the path 410 are offset and therefore not concentric with the central axis 300 (or drive axis). Also, in one embodiment, the speed of the fastening element 132 during a random orbital movement of the second mode is lower than the speed of the fastening element 132 during a rapid rotary movement of the first mode.At this lower speed, this second mode is advantageous in providing a surface treatment on a workpiece that is less aggressive than that of the second mode, thereby preventing movement marks on the workpiece in some cases. In one embodiment, the fastening element 132 is free to rotate about at least the eccentric axis 400 when unlocked.

[0032] Fig. Figure 6 is a perspective view of the device 10, which includes the power tool 20 with the multi-motion accessory 100, which further comprises a limiting mechanism 160 according to one embodiment. In one embodiment, the limiting mechanism 160 comprises a rubber material, a plastic material, any suitable material, or any combination thereof. For example, in Fig. 6. The limiting mechanism 160 is a flexible rubber material such that the fastener 168 is limited with respect to rapid rotational movement, but is still movable in an orbital or a grinding / rubbing motion. In an embodiment, when the limiting mechanism 160 is attached to at least one end section of the power tool 20 and engages with the corresponding fastener 132 / 168, the multi-motion accessory 100 is configured to provide a third mode comprising at least an orbital movement, a grinding movement, or another type of movement. Furthermore, as shown in Fig. Figure 6 shows that when the limiting mechanism 160 is engaged to hold part of the fastener 168, its locking element 110 is in the unlocked state, so that the fastener 168 moves in an orbital motion (or a sliding motion) and provides a third mode when driven by the drive shaft 40.

[0033] In one embodiment, the restraint mechanism 160 comprises a connector section 162, a support element 164, and a restraint device 166. The connector section 162, the support element 164, and the restraint device 166 are integrally or rigidly connected to one another. In one embodiment, the connector section 162 is attachable to and detachable from the power tool 20. In another embodiment, the restraint mechanism 160, when attached, has its connector section 162 secured to an end section of the power tool 20 near the drive shaft 40. In another embodiment, the support element 164 supports the restraint device 166 with respect to the connector section 162. In another embodiment, the restraint device 166 comprises any suitable mechanical device configured to restrain a corresponding portion of the fastening element 168.For example, the restriction device contains 166, as in . Fig. Figure 6 shows a sleeve configured to hold at least part of the fastening element 168, such that the fastening element 132 moves in an orbital motion when driven by the drive shaft 40.

[0034] In one embodiment, the fastening element 168 includes a form comprising a round section joined to a triangular section, as shown in Fig. Figure 6 shows that with this shape and / or the inclusion of a triangular pad, the fastening element 168 is well suited for corner areas, edge areas, and the like of a workpiece. In one embodiment, the fastening element 168 can also include a counter-structure (e.g., sleeve, hole, recess, etc.) configured to position, hold, support, and / or engage with the restraint device 166. Fig.Figure 6 shows the fastening element 168 in relation to an orbital movement of the third mode. Alternatively, the fastening element 132 can be used in this third mode with the limiting mechanism 160, if desired. In this respect, the multi-movement accessory 100 can include any suitable fastening element in any of the different modes.

[0035] As described above, the multi-motion accessory 100 provides a number of advantageous features and benefits. For example, the multi-motion accessory 100 provides different movements that are available through the same drive shaft 40. In this respect, the power tool 20 can, for example, contain a relatively inexpensive drive unit with a rotary drive shaft 40 that can provide a variety of movements via the multi-motion accessory 100. Furthermore, since the multi-motion accessory 100 is capable of providing these different movements, the drive unit of the power tool 20 does not need to contain any additional drive components to provide these different movements. Moreover, the multi-motion accessory 100 is designed so that it can be moved from one position (e.g., locked position) to another position (e.g., unlocked position) simply by moving the locking element 110.(unlocked position) or vice versa, transitioning from one mode with one type of movement (e.g., rapid rotary movement) to another mode with a different type of movement (e.g., random orbital movement). Furthermore, in one embodiment, the multi-motion accessory 100 includes a limiting mechanism 160 that can be attached to the power tool 20 to provide yet another mode with a different type of movement (e.g., orbital movement). Advantageously, the multi-motion accessory 100 allows a user to apply a desired movement from a selection of different movements to a workpiece to conveniently achieve desired results.

[0036] The above description is therefore intended to be illustrative and not limiting, and is provided within the context of a specific application and its requirements. It will be clear to the person skilled in the art from the foregoing description that the present invention can be implemented in a variety of forms, and that the different embodiments can be implemented alone or in combination.Therefore, although the embodiments of the present invention have been described in connection with certain examples thereof, the general principles defined herein can be applied to other embodiments and applications without deviating from the essence and scope of protection of the described embodiments, and the actual scope of protection of the embodiments and / or methods of the present invention is not limited to the embodiments shown and described herein, since various modifications become apparent to the person skilled in the art after studying the drawings, specifications, and subsequent claims. For example, components and functionality can be separated or combined differently than in the manner of the various described embodiments and can be described using different terminology.These and other variations, modifications, additions and improvements may fall within the scope of the disclosure as defined in the following claims.

Claims

[1] Accessories that can be driven by a drive shaft (40), the accessories comprising: a fastening element (132) having a central axis (300), wherein the central axis (300) is perpendicular to a first surface of the fastening element (132); a connecting element (148) that is connected to at least the fastening element (132); a locking element (110) that is movable into at least (a) a locked position in which the locking element (110) engages with the fastening element (132) such that the fastening element (132) is configured to rotate about the central axis (300), and (b) an unlocked position in which the locking element (110) is disengaged from the fastening element (132) such that the fastening element (132) is configured to rotate about an eccentric axis (400), the eccentric axis (400) being offset from the central axis (300); and an eccentric element (116) which includes a first opening (124) which receives the locking element (110), a second opening (126) which receives the drive shaft (40), and a third opening (128) which receives the connecting element (148), wherein the second opening (126) of the eccentric element (116) is designed such that it is aligned with the central axis (300) of the fastening element (132), and the third opening (128) of the eccentric element (116) is designed such that it is aligned with the eccentric axis (400) of the fastening element (132), wherein the fastening element (132) comprises an inner rib (146A) and an outer rib (146B), wherein the inner rib (146A) extends around an inner region of the fastening element (132) and the outer rib (146B) extends around an edge region of the fastening element (132), wherein radial ribs (146C) extend from the inner rib (146A) to the outer rib (146B). [2] Accessories according to claim 1, wherein: the fastening element (132) moves in at least one rapid rotational movement as it rotates about the central axis (300); and the fastening element (132) moves in at least one random orbital motion as it rotates about the eccentric axis (400). [3] Accessories according to claim 1, wherein the central axis (300) of the fastening element (132) is aligned with a drive axis of the drive shaft (40) when the drive shaft (40) is positioned within the second opening (126). [4] Accessories according to claim 1, further comprising: a warehouse (130), wherein the connecting element (148) connects at least the bearing (130) to the eccentric element and the fastening element (132) so that the bearing (130) is centered around the eccentric axis (400). [5] Accessories according to claim 4, wherein: the fastening element (132) includes a guide slot (138) that receives the bearing (130); and the third opening (128) is designed so that it is aligned with the guide slot (138). [6] Accessories according to claim 1, wherein: the fastening element (132) includes a locking slot designed to receive the locking element (110); and the locking element (110) is in (a) the locked position when the locking element (110) is engaged with the locking slot, and (b) the unlocked position when the locking element (110) is disengaged from the locking slot. [7] Accessories according to claim 1, further comprising: a limiting mechanism (160) that holds part of the fastening element (132) so that the fastening element (132) moves in at least one orbital motion when driven by the drive shaft (40). [8] Device comprising: a drive shaft; a motor to drive the drive shaft (40); and an accessory which can be driven by a drive shaft (40), wherein the accessory comprises the following a fastening element (132) having a central axis (300), wherein the central axis (300) is perpendicular to a first surface of the fastening element (132); a connecting element (148) that is connected to at least the fastening element (132); a locking element (110) that is movable into at least (a) a locked position in which the locking element (110) engages with the fastening element (132) such that the fastening element (132) is configured to rotate about the central axis (300), and (b) an unlocked position in which the locking element (110) is disengaged from the fastening element (132) such that the fastening element (132) is configured to rotate about an eccentric axis (400), the eccentric axis (400) being offset from the central axis (300); and an eccentric element (116) which includes a first opening (124) which receives the locking element (110), a second opening (126) which receives the drive shaft (40), and a third opening (128) which receives the connecting element (148), wherein the second opening (126) of the eccentric element is designed such that it is aligned with the central axis (300) of the fastening element (132), and the third opening (128) of the eccentric element (116) is designed such that it is aligned with the eccentric axis (400) of the fastening element (132), wherein the fastening element (132) comprises an inner rib (146A) and an outer rib (146B), wherein the inner rib (146A) extends around an inner region of the fastening element (132) and the outer rib (146B) extends around an edge region of the fastening element (132), wherein radial ribs (146C) extend from the inner rib (146A) to the outer rib (146B). [9] Device according to claim 8, wherein: the fastening element (132) moves in at least one rapid rotational movement as it rotates about the central axis (300); and the fastening element (132) moves in at least one random orbital motion as it rotates about the eccentric axis (400). [10] Device according to claim 8, wherein the central axis (300) of the fastening element (132) is aligned with a drive axis of the drive shaft (40) when the drive shaft (40) is positioned within the second opening (126). [11] Device according to claim 8, further comprising: a warehouse (130), wherein the connecting element (148) connects at least the bearing (130) to the eccentric element and the fastening element (132) so that the bearing (130) is centered around the eccentric axis (400). [12] Device according to claim 11, wherein: the fastening element (132) includes a guide slot (138) that receives the bearing (130); and the third opening (128) is designed so that it is aligned with the guide slot (138). [13] Device according to claim 8, wherein: the fastening element (132) includes a locking slot (136) designed to receive the locking element (110); and the locking element (110) is in (a) the locked position when the locking element (110) engages with the locking slot (136), and (b) the unlocked position when the locking element (110) is disengaged from the locking slot (136). [14] Device according to claim 8, further comprising: a limiting mechanism (160) that holds a portion of the fastening element (132) so that the fastening element (132) moves in at least one orbital motion when driven by the drive shaft (40).

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