Accessory for vacuum cleaner

Abstract

An accessory for use with a vacuum cleaner, the accessory comprising: a head housing defining a brush roll cavity, a motor cavity, and a battery cavity defining a central axis; a brush roller rotatable about an axis of rotation relative to the head housing; and an electric motor disposed within the motor cavity and configured to drive the brush roller, an output shaft of the electric motor being rotatable about a rotation axis. The axis of rotation of the brush roller is substantially parallel to the axis of rotation of the output shaft of the electric motor and the central axis of the battery cavity. The rotation axis of the output shaft of the motor is shifted by a first distance rearward of the rotation axis of the brush roller. The central axis of the battery cavity deviates towards the rear of the rotation axis of the output shaft by a second distance.

Description

Technical Field

[0001] This topic relates to vacuum cleaners, and more specifically to portable vacuum cleaners. Background Technology

[0002] Most handheld vacuum cleaners on the market are quite large, making them difficult for users to operate when cleaning dirt that isn't on the ground. Therefore, there is a need for a portable cleaner that is smaller and lighter. This application addresses at least the above-mentioned problems. Utility Model Content

[0003] In one embodiment, an accessory for use with a vacuum cleaner includes: a head housing defining a brush roller cavity, a motor cavity, and a battery cavity, the battery cavity being substantially cylindrical and defining a central axis; a brush roller configured to be coupled to the head housing and positioned within the brush roller cavity, the brush roller being rotatable relative to the head housing about a rotation axis; and an electric motor disposed within the motor cavity and configured to drive the brush roller, the output shaft of the electric motor being rotatable about the rotation axis. The rotation axis of the brush roller is substantially parallel to the rotation axis of the electric motor's output shaft and the central axis of the battery cavity. The rotation axis of the motor's output shaft is offset rearward by a first distance from the rotation axis of the brush roller. The central axis of the battery cavity is offset rearward by a second distance from the rotation axis of the motor's output shaft.

[0004] In another embodiment, an accessory for use with a vacuum cleaner includes: a head housing defining a brush roller cavity, a motor cavity, and a battery cavity, the battery cavity being substantially cylindrical and defining a central axis; a brush roller configured to be coupled to the head housing and positioned within the brush roller cavity, the brush roller being rotatable relative to the head housing about a rotation axis; an electric motor disposed within the motor cavity and configured to drive the brush roller, the output shaft of the electric motor being rotatable about the rotation axis; and a suction tube extending from the head housing and configured to engage the vacuum cleaner, the suction tube defining a suction inlet at the outlet of the brush roller cavity and extending from the suction inlet to a suction outlet. When viewed in a direction along the rotation axis of the motor's output shaft, at least a portion of the suction tube overlaps with a portion of the motor. When viewed in a direction along the central axis of the battery cavity, the suction tube does not overlap with the battery cavity.

[0005] In another embodiment, an accessory for use with a vacuum cleaner includes: a head housing defining a brush roller cavity, a motor cavity, and a battery cavity, the battery cavity defining a central axis; a brush roller configured to be coupled to the head housing and positioned within the brush roller cavity, the brush roller being rotatable relative to the head housing about a rotation axis; and an electric motor disposed within the motor cavity and configured to drive the brush roller, the output shaft of the electric motor being rotatable about the rotation axis. The battery cavity has an opening on a first sidewall of the head housing, through which a battery can be inserted into and removed from the battery cavity via translation along the central axis. The battery cavity has a length measured along the central axis. The motor has a length measured along the rotation axis of the motor's output shaft. The length of the battery cavity is spaced apart from the length of the motor such that the lengths of the motor and the battery cavity do not overlap.

[0006] Other aspects of this subject will become clear by considering the detailed description and accompanying figures. Attached Figure Description

[0007] Figure 1 This is a front perspective view of an accessory for a vacuum apparatus according to an embodiment of this disclosure.

[0008] Figure 2 yes Figure 1 Rear perspective view of an accessory used in a vacuum device.

[0009] Figure 3 yes Figure 1 A cross-sectional view of an accessory for a vacuum device, the section being cut through the center of the suction tube and facing left.

[0010] Figure 4 yes Figure 1 A cross-sectional view of an accessory for a vacuum device, the section being cut through the center of the suction tube and facing to the right.

[0011] Figure 5 yes Figure 1 A cross-sectional view of an accessory for a vacuum device, the section being cut through the inlet and the motor.

[0012] Figure 6 yes Figure 1 A cross-sectional view of an accessory for a vacuum device, the section being cut through the inlet and the battery.

[0013] Before explaining any embodiments of this subject matter in detail, it should be understood that this subject matter is not intended to limit its application to the construction details and component arrangements set forth in the following description or shown in the following figures. This subject matter can have other embodiments and can be practiced or implemented in various ways. Detailed Implementation

[0014] Figure 1 An accessory 100 for a vacuum device 10 (e.g., a vacuum cleaner, portable vacuum cleaner, etc.) according to an embodiment of this disclosure is shown. The accessory 100 includes a head housing 104 and a suction tube 108. The head housing 104 defines an internal volume therein forming a brush roller cavity 112, a motor cavity 116, and a battery cavity 120. The head housing 104 extends rearward from a front wall 124 in the width direction to a rear wall 128 opposite to the front side. In the length direction perpendicular to the width direction, the head housing 104 extends between a first side wall 132 (left side wall, as shown) and a second side wall 136 (right side wall, as shown), the second side wall opposite to the first side wall 132. Vertically, the head housing 104 extends between a bottom side 140 and a top side 144 opposite to the bottom side 140. The bottom side 140 is a ground contact surface such that, in operation, the bottom side 140 moves along the ground (or other generally horizontal) surface to be cleaned. The bottom side 140 may include a base plate that provides a seal on the surface to be cleaned when the tool is held at different angles.

[0015] The brush roller cavity 112 is located near the front side 124 of the head housing 104 and is closer to the front side 124 than the motor cavity 116 and the battery cavity 120. In the illustrated embodiment, the brush roller cavity 112 extends almost the entire (e.g., at least 90%) length of the head housing 104 between the first sidewall 132 and the second sidewall 136. Further, the brush roller cavity 112 extends vertically between the bottom side 140 and the top side 144. The brush roller 148 is positioned within the brush roller cavity 112 and configured to rotate within it. In some embodiments, a portion of the housing 104 defining the brush roller cavity is transparent and / or translucent, such that the brush roller 148 is visible through the head housing 104 within the brush roller cavity 112.

[0016] The brush roller 148 includes a generally cylindrical body 152 having bristles 156, fins 158, and / or other debris collection devices extending radially outward from the body 152. In some embodiments, one or more fins 158 extend in a helical pattern between the two ends of the body 152 around the body 152. Other embodiments may have linearly extending fins or no fins. In some embodiments, other debris collection devices may include anti-hair entanglement features. In one embodiment, the fins 158 may provide anti-hair entanglement features. The brush roller 148 is mounted within a brush roller cavity 112 and configured to rotate about a rotation axis a1. The rotation axis a1 extends generally perpendicular to the first sidewall 132 and the second sidewall 136 of the head housing 104. The brush roller cavity 112 includes an opening 168 in the first sidewall 132 of the head housing 104. Figure 5The brush roller 148 can be removed from and inserted into the brush roller cavity 112 through the opening 168. In some embodiments, the cover 170 is removed from the opening 168 to provide access to the interior of the brush roller cavity 112. Figure 2 The image shows the cover 170 in a locked position and an unlocked position (rotated relative to the locked position). A mark 174 is provided on the head housing 104 adjacent to the cover 170, indicating the rotation of the cover 170 between the locked position (indicated by the closed lock of mark 174) and the unlocked position (indicated by the open lock of mark 174). An arrow between the two locking symbols indicates the direction of locking and unlocking. In other embodiments, the cover 170 is integrally formed with the brush roller 148. In some embodiments, the cover 170 is a tool-free brush roller cover that can be removed by the user without the aid of tools (e.g., grippable and rotatable). In other embodiments, the brush roller cover 170 is removable with a tool (e.g., a wrench, screwdriver, etc.). Removing and / or inserting the brush roller 148 through the opening 168 includes translating the brush roller 148 along axis a1.

[0017] The brush roller 148 shown in the accompanying drawings and described in the specification is just one of many different types and designs of brush rollers that can be used with accessories. Different brush rollers may include bristles with different thicknesses, stiffnesses, and arrangements. Additionally, different types of materials may be used, such as microfiber type brush rollers. Furthermore, other brush roller designs may include different debris collection devices besides fins and bristles.

[0018] The brush roller cavity 112 includes a brush roller cavity inlet 160 defined in the bottom side 140 of the head housing 104. The brush roller cavity inlet 160 extends to a length substantially the same as that of the brush roller 148, such that when the brush roller 148 is mounted within the brush roller cavity 112, at least some of the bristles 156 of the brush roller 148 protrude through the inlet 160 and engage with the ground surface. In some embodiments, the inlet 160 is rectangular. The brush roller cavity inlet 160 is a debris inlet through which debris is introduced into the attachment 100. As the brush roller 148 rotates within the brush roller cavity 112 about a rotation axis a1, the brush roller releases and / or picks up debris from the ground surface. When the attachment 100 is coupled to a vacuum device 10, the vacuum device 10 generates a suction airflow that draws debris into the attachment 100 through the inlet 160.

[0019] The brush roller cavity 112 further includes a brush roller outlet 164 through which debris in the brush roller cavity 112 is removed from the brush roller cavity 112. The brush roller outlet 164 is narrower than the brush roller inlet 160 and is centered between the first sidewall 132 and the second sidewall 136 of the head housing 104. Additionally, when the inlet 160 is located at the bottom side 140, the outlet 164 is located at or near the top side 144. The brush roller outlet 164 introduces debris from the brush roller cavity 112 into the inlet 172 of the suction tube 108.

[0020] The suction tube 108 is a generally linear tube extending upward and rearward from the top side 144 of the head housing 104. In some embodiments, the suction tube 108 is overmolded onto the head housing 104 at the brush roller outlet 164. The suction tube 108 is hollow, defining an internal passage extending from a suction inlet 172 at the outlet 164 of the brush roller cavity 112 to a suction outlet 176 at the opposite end. Figure 4 As shown, the suction tube 108 extends at a convex angle θ1 relative to the ground surface of the bottom side 140 of the supporting head housing 104. In some embodiments, the angle θ1 is approximately 35 degrees (e.g., 30-40 degrees, 20-50 degrees). As shown, the length (i.e., axial length) of the suction tube 108 between the suction inlet 172 and the suction outlet 176 extends beyond the rear side 128 of the head housing 104. The suction outlet 176 at the distal end of the suction tube 108 is configured to engage the vacuum device 10 (e.g., the hose of the vacuum device 10) to provide a suction airflow path from the vacuum device 10 to the brush roller cavity 112 of the accessory 100. The suction outlet 176 includes an adapter 180 or engagement feature that engages the vacuum device 10 to secure the accessory 100 to the vacuum device 10. As shown, adapter 180 includes an inclined surface with a different diameter along its length. Adapter 180 defines a central axis, i.e., a longitudinal axis, along its length. Therefore, the inclined surface of adapter 180 has a different diameter along its longitudinal axis, such that adapter 180 is configured to connect hoses, tubes, and extension rods with different diameters (e.g., 1-1 / 4'' diameter, 1-7 / 8'' diameter, 2-1 / 2'' diameter), which are part of or separate from the vacuum device 10. Adapter 180 may be overmolded onto suction tube 108 or may be attached in other ways (e.g., via adhesive). In some embodiments, the progressive surface of adapter 180 is attached to hoses, tubes, and extension rods only via frictional engagement and / or compression engagement by compressive forces applied to the hoses, tubes, and extension rods by the elastic deformation of the outer wall of adapter 180 due to the material of adapter 180. In other embodiments, the engagement feature further includes a locking connector that requires user input (e.g., to a lever or button) to disengage accessory 100 from the hose, tube, and extension rod.

[0021] The motor cavity 116 is located behind the brush roller cavity 112 (i.e., closer to the rear side 128 than the brush roller cavity 112). The motor cavity 116 is offset left and right, positioned closer to the second sidewall 136 than the first sidewall 132. The motor cavity 116 is completely positioned between the suction tube 108 and the second sidewall 136. The motor 184 is located within the motor cavity 116 of the head housing 104. The motor 184 includes an output shaft 188 that rotates about a rotation axis a2 (i.e., when energized). The motor 184 has a first axial end and a second axial end in the axial direction of the output shaft 188, and the motor 184 has a length extending between the first axial end and the second axial end. The motor 184 is generally cylindrical and substantially centered on the rotation axis a2 of the output shaft 188. Output shaft 188 is connected to drive mechanism 192 (e.g., multiple gears and / or belts), which is connected to brush roller 148 such that rotation of output shaft 188 of motor 184 about axis a2 produces rotation of brush roller 148 about axis a1. The rotation axis a2 of motor 184 is generally parallel to the rotation axis a1 of brush roller 148.

[0022] The battery cavity 120 is a generally cylindrical cavity defining a central axis a3. The central axis a3 extends generally parallel to the rotation axis a1 of the brush roller 148 and the rotation axis a2 of the motor output shaft 188. In one embodiment, the battery cavity 120, the brush roller 148, and the motor 184 may be coplanar. The battery cavity 120 is located behind the motor cavity 116 (i.e., closer to the rear side 128 than the motor cavity 116). The battery cavity 120 extends between an opening 208 in the first sidewall 132 and an electrical connector 216. A removable battery 196 is insertable into the battery cavity 120 and configured to engage the electrical connector 216 to provide power to the motor 184. In some embodiments, the removable battery 196 is a 4 V rechargeable battery. The removable battery 196 includes a generally cylindrical body 200, the size of which is determined to slide along the central axis a3 within the battery cavity 120. The cover 204 is attached to the cylindrical body 200 and extends to the outside of the battery cavity 120 to provide a grip for the user to hold the battery 196 when installed inside the battery cavity 120. Figure 5As shown, a portion of the cylindrical body 200 also extends within the cover 204 to the outside of the battery cavity 120. The cover 204 engages with an opening 208 through which the battery 196 is inserted and removed from the battery cavity 120 to secure the battery 196 to the head housing 104. In some embodiments, the cover 204 may include an engagement portion 212 (e.g., a threaded engagement portion) that engages with threads (or other engagement features) of the housing 104 to secure the removable battery 196 to the head housing 104. In other embodiments, the cover 204 may be separable from the removable battery 196 and removable from the opening 208 to provide access to the removable battery 196 located within the battery cavity 120.

[0023] A power input 220 is provided on accessory 100 (e.g., on the top side 144 of the head housing). Power input 220 may be configured as a button, switch, or another user input. Power input 220 is movable between an engaged position and a disengaged position. In the engaged position, motor 184 is energized to rotate brush roller 148 within brush roller cavity 112. In the disengaged position, motor 184 is de-energized, causing output shaft 188 to not rotate and brush roller 148 to not rotate via motor 184. In some embodiments, a mode selection input may be additionally provided on accessory 100 to operate accessory 100 in various modes (e.g., high speed, low speed, constant speed, variable speed, forward, reverse, etc.), specifically operating motor 184 and brush roller 148.

[0024] refer to Figure 1 Indicator light 224 (illustrated as an LED (light-emitting diode) indicator) is positioned near power input 220 and indicates various states of accessory 100. More specifically, in the illustrated embodiment, LED indicator light 224 is positioned on the top side 144 of head housing 104, in front of power input 220. In some embodiments, indicator light 224 is controlled to be green when accessory 100 is powered on and the state of charge of battery 196 is above a threshold (e.g., battery voltage greater than or equal to 50%, greater than or equal to 25%, etc.). In some embodiments, indicator light 224 is controlled to be red when accessory 100 is powered on and the state of charge of battery 196 is below a threshold. Furthermore, in some embodiments, indicator light 224 is controlled to flash red in abnormal conditions.

[0025] A work light 228 is positioned on the front side 124 of the head housing 104 of the attachment 100 and is configured to illuminate the surface to be cleaned in front of the attachment 100. In the illustrated embodiment, the work light 228 is an LED work light having one or more (e.g., two) LEDs positioned behind a translucent (or transparent) shield. The work light 228 is positioned above the brush roller cavity 112 and is generally centered between the first side 132 and the second side 136 of the head housing 104. The work light 228 can be automatically turned on when the attachment 100 is powered on (via power input 220). Alternatively, the work light 228 may have a separate power switch or may be turned on in low-light environments (e.g., in response to a signal from a light sensor).

[0026] A printed circuit board assembly (PCBA) 250 is disposed within the head housing 104. For example... Figure 5 As shown, the PCBA 250 is oriented substantially vertically within the head housing 104 (i.e., such that the flat surface of the circuit board assembly 250 extends vertically) and is located between the battery cavity 120 and the brush roller cavity 112. In some embodiments, the PCBA 250 is generally aligned with the axis a2 of the output shaft 188 of the motor 184. The PCBA 250 is secured to the head housing 104 via, for example, fasteners and / or interaction with the head housing 104 (e.g., sliding within a slot defined by one or more surfaces of the head housing 104). The PCBA 250 may further include other circuit boards positioned within the head housing 104, such as a first separate circuit board positioned near (e.g., below) the power input 220 and the LED indicator 224, and a second separate circuit board positioned near (i.e., behind) the lens of the LED work light 228.

[0027] PCBA 250 is a controller for accessory 100. PCBA 250 controls and monitors the operation of battery 196 and motor 184. PCBA 250 controls the operation of motor 184, including activating motor 184 (i.e., turning on motor 184, causing output shaft 188 to rotate), deactivating motor 184 (i.e., turning off motor 184, causing output shaft 188 to stop rotating), and controlling the speed of motor 184 (i.e., the speed of output shaft 188 of motor 184) if motor 184 is a variable speed motor, thereby controlling the rotational speed of brush roller 148. Additionally, PCBA 250 monitors the operation of accessory 100 to identify anomalies (e.g., stalling due to an object getting stuck in brush roller 148, resulting in a current spike) and modifies the operation of battery 196 and / or motor 184 in response. PCBA 250 further controls the output of indicator light 224 to change whether indicator light 224 is on or off, the color of indicator light 224 (e.g., red, green), and / or the pattern of indicator light 224 (e.g., solid-state light, flashing light of a first speed or pattern, flashing light of a second speed or pattern, etc.). Furthermore, in some embodiments, PCBA 250 sets and / or changes a threshold of battery 196 based on the current draw level of motor 184 during operation, which indicates the output of indicator light 224. PCBA 250 also controls the operation of LED work light 228 (e.g., turning work light 228 on and off).

[0028] like Figure 6 As shown, the head housing 104 has a length L3 extending between the first sidewall 132 and the second sidewall 136. The width w3 of the head housing 104 is measured between the front side 124 and the rear side 128 and is generally perpendicular to the length L3. The width w3 is measured in the direction of travel during normal use of the accessory 100. The length L3 is substantially parallel to axes a1, a2, a3. As shown, the width w3 of the head housing 104 is at least 80% (e.g., between 80% and 100%) of the length L3 of the head housing 104, thereby providing a compact external dimension for the head housing 104.

[0029] Figure 3 It shows the perpendicularity to axes a1, a2, a3 (in) Figures 5 to 6 (As shown) A cross-section passing through the center of the suction tube 108. The suction tube 108 extends linearly from the suction inlet 172 at the brush roller cavity 112 to the suction outlet 176 at the adapter 180. The suction tube 108 extends rearward from the inlet 172 to the outlet 176, but simultaneously extends upward, such that when along as... Figure 3When viewed along axes a1, a2, and a3, the suction tube 108 does not overlap with the battery cavity 120. Thus, the battery cavity 120 is not limited to being mounted on one side of the suction tube 108, but extends behind and below the suction tube 108 to reduce the overall width of the head housing 104. Figures 5 to 6 A portion of the battery cavity 120 (between the opening 208 and the electrical connector 216) is shown to extend in the longitudinal direction (along L3) beyond the centerline of the suction tube 108, which is possible when the battery cavity 120 is located behind the suction tube 108.

[0030] In comparison, such as Figure 4 As shown, when viewed along the rotation axis a2 of the motor 184, the suction tube 108 partially overlaps with the motor 184. Thus, the motor 184 is completely positioned on one side of the suction tube 108 so as not to contact or extend into the suction tube 108. Figure 5 As shown, the length L1 of the motor 184 is less than the length L2 of the battery cavity 120, allowing the motor to be fitted to one side of the suction tube 108 without significantly increasing the total length L3 of the head housing 104. Figure 6 ).

[0031] The length L2 of the battery cavity 120 and the length L1 of the motor 184 do not overlap, resulting in a gap between the length range of the motor 184 and the length range of the battery cavity 120. The sum of the lengths L1 and L2 of the motor 184 and the battery cavity 120 corresponds to a large portion (e.g., more than 50%, more than 75%) of the total length L3 of the head housing 104. Because the lengths L1 and L2 do not overlap, the width w1 of the motor 184 and the width w2 of the battery cavity 120 can overlap, as shown below. Figure 5 As shown, the motor cavity 116 and the battery cavity 120 do not physically interfere with each other.

[0032] Continue to refer to Figure 5 The substantially parallel axes a1, a2, and a3 are spaced apart from each other to fit within the head housing 104. The rotation axis a2 of the output shaft 188 of the motor 184 is spaced rearward by a first distance d1 from the rotation axis a1 of the brush roller 148. The central axis a3 of the battery cavity 120 is spaced rearward by a second distance d2 from the rotation axis a2 of the output shaft 188 of the motor 184. In this way, the central axis a3 of the battery cavity 120 is spaced rearward by a distance greater than either distance d1 or d2, and equal to the combination of distances d1 and d2. Compared to an arrangement where one or more axes a1, a2, and a3 are aligned (i.e., collinear), the length L3 of the head housing 104 is reduced. Furthermore, the length L3 of the head housing 104 is reduced by positioning the battery cavity 120 rearward to avoid physically interfering with the suction tube 108.

[0033] In some embodiments, the distance d1 between the rotation axis a1 of the brush roller 148 and the rotation axis a2 of the motor output shaft 188 is greater than the distance d2 between the rotation axis a2 of the output shaft 188 of the motor 184 and the central axis a3 of the battery cavity 120, because the brush roller cavity 112 has a diameter larger than the width w1 of the motor cavity. In some embodiments, the distance d2 is at least 40% of the distance d1 (e.g., 40%-70%, 40%-100%).

[0034] In some embodiments, the accessory 100 itself is not a vacuum device, as it omits the system for generating a suction airflow; instead, it is an accessory 100 for collecting debris when coupled to the vacuum device 10. In some embodiments, the accessory 100 may be detachable from the vacuum device 10.

[0035] Although the subject matter has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope of one or more independent aspects of the described subject matter.

Claims

1. An accessory for use with a vacuum cleaner, characterized in that, The attachment includes: A head housing that defines a brush roller cavity, a motor cavity, and a battery cavity, wherein the battery cavity is cylindrical and defines a central axis; A brush roller configured to be coupled to the head housing and positioned within the brush roller cavity, the brush roller being rotatable relative to the head housing about a rotation axis; and An electric motor is arranged within the motor cavity and configured to drive the brush roller, the output shaft of which is rotatable about a rotation axis. The rotation axis of the brush roller is substantially parallel to the rotation axis of the output shaft of the electric motor and the central axis of the battery cavity. The rotation axis of the motor's output shaft is offset behind the rotation axis of the brush roller by a first distance, and The central axis of the battery cavity is offset by a second distance behind the rotation axis of the motor's output shaft.

2. The appendix as described in claim 1, characterized in that, The battery cavity, the brush roller, and the electric motor are coplanar.

3. The accessory as claimed in claim 1, further comprising a removable battery configured to be positioned within the battery cavity, characterized in that, The removable battery is cylindrical.

4. The appendix as described in claim 3, characterized in that, The removable battery includes a cover configured to thread into the head housing outside the battery cavity.

5. The appendix as described in claim 3, characterized in that, The battery cavity has an opening on the first side wall of the head housing, wherein the removable battery can be inserted into the battery cavity and removed from the battery cavity by translation along the central axis through the opening.

6. The appendix as described in claim 5, characterized in that, The battery cavity further includes an electrical connector configured to engage with a removable battery in the battery cavity, wherein the battery cavity has a length extending between the opening and the electrical connector, wherein the motor has a length extending between a first axial end and a second axial end of the motor, wherein the length of the battery cavity is spaced apart from the length of the motor such that the motor and the battery cavity do not overlap.

7. The appendix as described in claim 1, characterized in that, When connected to the head housing, at least a portion of the battery extends to the outside of the battery cavity.

8. The appendix as described in claim 1, characterized in that, It further includes a suction tube that extends from the head housing and is configured to engage the vacuum cleaner, the suction tube defining a suction inlet at the outlet of the brush roller cavity and extending from the suction inlet to a suction outlet.

9. The appendix as described in claim 8, characterized in that, The suction tube extends upward and backward from the suction inlet to the suction outlet.

10. The appendix as described in claim 9, characterized in that, When viewed in the direction of rotation along the output shaft of the motor, at least a portion of the suction tube overlaps with a portion of the motor.

11. The appendix as claimed in claim 10, characterized in that, When viewed along the central axis of the battery cavity, the suction tube does not overlap with the battery cavity.

12. The appendix as described in claim 8, characterized in that, The suction tube is substantially linear between the suction inlet and the suction outlet.

13. The appendix as claimed in claim 1, characterized in that, The head housing includes a first sidewall, a second sidewall, a front wall, and a rear wall, the head housing having a length extending between the first sidewall and the second sidewall, wherein the head housing has a width extending rearward from the front wall to the rear wall, and wherein the width of the head housing is at least 80% of the length of the head housing.

14. The appendix as claimed in claim 1, characterized in that, The battery cavity has an opening on the first side wall of the head housing, and the brush roller cavity has an opening on the first side wall of the head housing, through which the brush roller can be inserted.

15. The appendix as claimed in claim 1, characterized in that, The second distance is at least 40% of the first distance.

16. An accessory for use with a vacuum cleaner, characterized in that, The attachment includes: A head housing that defines a brush roller cavity, a motor cavity, and a battery cavity, wherein the battery cavity is cylindrical and defines a central axis; A brush roller configured to be coupled to the head housing and positioned within the brush roller cavity, the brush roller being rotatable relative to the head housing about a rotation axis; An electric motor, disposed within the motor cavity and configured to drive the brush roller, wherein the output shaft of the electric motor is rotatable about a rotation axis; and A suction tube extends from the head housing and is configured to engage the vacuum cleaner. The suction tube defines a suction inlet at the outlet of the brush roller cavity and extends from the suction inlet to a suction outlet. Specifically, when viewed in the direction of rotation along the output shaft of the motor, at least a portion of the suction tube overlaps with a portion of the motor, and Specifically, when viewed along the central axis of the battery cavity, the suction tube does not overlap with the battery cavity.

17. The appendix as claimed in claim 16, characterized in that, The suction tube includes an adapter configured to be removably coupled to at least one of a hose, tube, and extension rod. The adapter includes a beveled surface having a different diameter along the longitudinal axis of the adapter, such that the adapter is configured to be coupled to at least one of a hose, tube, and extension rod of more than one diameter.

18. The appendix as claimed in claim 16, characterized in that, The axis of rotation of the brush roller is substantially parallel to the axis of rotation of the output shaft of the electric motor and the central axis of the battery cavity.

19. An accessory for use with a vacuum cleaner, characterized in that, The attachment includes: A head housing that defines a brush roller cavity, a motor cavity, and a battery cavity, wherein the battery cavity defines a central axis; A brush roller configured to be coupled to the head housing and positioned within the brush roller cavity, the brush roller being rotatable relative to the head housing about a rotation axis; and An electric motor is arranged within the motor cavity and configured to drive the brush roller, the output shaft of which is rotatable about a rotation axis. The battery cavity has an opening on the first side wall of the head housing, allowing the battery to be inserted into and removed from the battery cavity via translation along the central axis through the opening. The battery cavity has a length measured along the central axis, the motor has a length measured along the rotation axis of the motor's output shaft, and the length of the battery cavity is spaced apart from the length of the motor such that the length of the motor and the length of the battery cavity do not overlap.

20. The appendix as claimed in claim 19, characterized in that, The battery cavity has a width measured perpendicular to the central axis, and the motor has a width measured perpendicular to the rotation axis of the motor's output shaft, and the width of the battery cavity overlaps with the width of the motor.

Images