CA2843333C - Vacuum cleaner with accessory tool assembly - Google Patents
Vacuum cleaner with accessory tool assembly Download PDFInfo
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- CA2843333C CA2843333C CA2843333A CA2843333A CA2843333C CA 2843333 C CA2843333 C CA 2843333C CA 2843333 A CA2843333 A CA 2843333A CA 2843333 A CA2843333 A CA 2843333A CA 2843333 C CA2843333 C CA 2843333C
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- vacuum cleaner
- wand
- assembly
- locking
- connector
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- 238000010168 coupling process Methods 0.000 description 6
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- 239000004744 fabric Substances 0.000 description 2
- 239000003658 microfiber Substances 0.000 description 2
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- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
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- 238000001914 filtration Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920006352 transparent thermoplastic Polymers 0.000 description 1
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- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
A vacuum cleaner comprises an accessory tool assembly comprising a U-shaped tool which can be interchangeably mounted to different portions of the vacuum cleaner.
Description
VACUUM CLEANER
BACKGROUND
Canister vacuum cleaners can employ a variety of accessory tools and cleaning attachments for selective connection to a suction hose or wand assembly. Some accessory tools can be fluidly connected to a suction source by inserting a neck of the tool into the distal end of a hose or wand assembly. Other cleaning attachments can include an agitator element, which can become soiled or damaged after prolonged use.
BRIEF SUMMARY
According to one embodiment of the invention, a vacuum cleaner includes a main housing, a suction source provided in the main housing and generating a working air flow for removing debris from a surface to be cleaned, a separation/collection module mounted to the main housing in fluid communication with the suction source, and an accessory tool assembly. The accessory tool assembly includes at least one suction inlet, a U-shaped tool defining a mounting recess, and multiple mounting portions, each with an exterior having a cross-section complementary to the mounting recess, wherein the U-shaped tool can be interchangeably mounted on any of the multiple mounting portions by sliding the mounting recess onto one of the complementary exteriors.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
FIG. 1 is a perspective view of a vacuum cleaner according to a first embodiment of the invention;
FIG. 2 is a cross-sectional view though the vacuum cleaner of FIG. 1;
FIG. 3 is a cross-sectional view through line A-A of FIG. 1;
FIG. 4 is a cross-sectional view through line B-B of FIG. 1;
FIG. 5 is a exploded view of an upper portion of a wand assembly and handle assembly for the vacuum cleaner of FIG. 1;
FIG. 6 is an exploded view of a lower portion of a wand assembly and a cleaning foot assembly for the vacuum cleaner of FIG. 1;
, FIG. 7 is an exploded front perspective view of an accessory tool according to a second embodiment of the invention;
FIG. 8 is an exploded rear perspective view of the accessory tool from FIG. 7;
FIG. 9 is a section view of the accessory tool taken through line C-C of FIG.
1, with a locking mechanism in a locked position;
FIG. 10 is a section view of the accessory tool taken through line C-C of FIG.
1, with a locking mechanism in an unlocked position;
FIG. 11 is a cleaning foot assembly according to a third embodiment of the invention;
FIG. 12 is an exploded view of the cleaning foot assembly of FIG. 11;
FIG. 13 is a partial exploded view of a portion of the cleaning foot assembly of FIG.
11;
FIG. 14 is a section view of the cleaning foot assembly taken through line D-D
of FIG.
11 with an agitator assembly raised out of engagement with a surface to be cleaned;
FIG. 15 is a section view of the cleaning foot assembly taken through line D-D
of FIG.
11 with an agitator assembly engaged with a surface to be cleaned;
FIG. 16 is a partial perspective section view of the cleaning foot assembly taken through line E-E of FIG. 1; and FIG. 17 is an exploded view of a multi-axis joint assembly of the cleaning foot assembly of FIG. 11.
DETAILED DESCRIPTION
The invention relates to a vacuum cleaner that generates a working air flow for removing dust and debris from a surface to be cleaned. In one of its aspects, the invention relates to a canister vacuum cleaner with a suction wand assembly, a suction hose and an accessory tool for cleaning various surfaces. For purposes of description related to the figures, the terms "upper," "lower," "right," "left," "rear," "front,"
"vertical," "horizontal," and derivatives thereof shall relate to the invention as oriented in FIG. 1 from the perspective of a user behind the vacuum cleaner, which defines the rear of the vacuum cleaner.
However, it is to be understood that the invention may assume various alternative orientations, except where expressly specified to the contrary.
BACKGROUND
Canister vacuum cleaners can employ a variety of accessory tools and cleaning attachments for selective connection to a suction hose or wand assembly. Some accessory tools can be fluidly connected to a suction source by inserting a neck of the tool into the distal end of a hose or wand assembly. Other cleaning attachments can include an agitator element, which can become soiled or damaged after prolonged use.
BRIEF SUMMARY
According to one embodiment of the invention, a vacuum cleaner includes a main housing, a suction source provided in the main housing and generating a working air flow for removing debris from a surface to be cleaned, a separation/collection module mounted to the main housing in fluid communication with the suction source, and an accessory tool assembly. The accessory tool assembly includes at least one suction inlet, a U-shaped tool defining a mounting recess, and multiple mounting portions, each with an exterior having a cross-section complementary to the mounting recess, wherein the U-shaped tool can be interchangeably mounted on any of the multiple mounting portions by sliding the mounting recess onto one of the complementary exteriors.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
FIG. 1 is a perspective view of a vacuum cleaner according to a first embodiment of the invention;
FIG. 2 is a cross-sectional view though the vacuum cleaner of FIG. 1;
FIG. 3 is a cross-sectional view through line A-A of FIG. 1;
FIG. 4 is a cross-sectional view through line B-B of FIG. 1;
FIG. 5 is a exploded view of an upper portion of a wand assembly and handle assembly for the vacuum cleaner of FIG. 1;
FIG. 6 is an exploded view of a lower portion of a wand assembly and a cleaning foot assembly for the vacuum cleaner of FIG. 1;
, FIG. 7 is an exploded front perspective view of an accessory tool according to a second embodiment of the invention;
FIG. 8 is an exploded rear perspective view of the accessory tool from FIG. 7;
FIG. 9 is a section view of the accessory tool taken through line C-C of FIG.
1, with a locking mechanism in a locked position;
FIG. 10 is a section view of the accessory tool taken through line C-C of FIG.
1, with a locking mechanism in an unlocked position;
FIG. 11 is a cleaning foot assembly according to a third embodiment of the invention;
FIG. 12 is an exploded view of the cleaning foot assembly of FIG. 11;
FIG. 13 is a partial exploded view of a portion of the cleaning foot assembly of FIG.
11;
FIG. 14 is a section view of the cleaning foot assembly taken through line D-D
of FIG.
11 with an agitator assembly raised out of engagement with a surface to be cleaned;
FIG. 15 is a section view of the cleaning foot assembly taken through line D-D
of FIG.
11 with an agitator assembly engaged with a surface to be cleaned;
FIG. 16 is a partial perspective section view of the cleaning foot assembly taken through line E-E of FIG. 1; and FIG. 17 is an exploded view of a multi-axis joint assembly of the cleaning foot assembly of FIG. 11.
DETAILED DESCRIPTION
The invention relates to a vacuum cleaner that generates a working air flow for removing dust and debris from a surface to be cleaned. In one of its aspects, the invention relates to a canister vacuum cleaner with a suction wand assembly, a suction hose and an accessory tool for cleaning various surfaces. For purposes of description related to the figures, the terms "upper," "lower," "right," "left," "rear," "front,"
"vertical," "horizontal," and derivatives thereof shall relate to the invention as oriented in FIG. 1 from the perspective of a user behind the vacuum cleaner, which defines the rear of the vacuum cleaner.
However, it is to be understood that the invention may assume various alternative orientations, except where expressly specified to the contrary.
-2-FIG. 1 is a front perspective view of a vacuum cleaner 10 according to a first embodiment of the invention. The vacuum cleaner 10 has been illustrated as a canister vacuum cleaner comprising a main housing 12 that mounts components of a working air path in a maneuverable unit that can be transported by a user to different locations to be cleaned.
The main housing 12 is supported by a pair of rear wheels 14, which are rotatably mounted to a rearward portion and a front wheel 15 (FIG. 2) that can be swivelably mounted to a forward portion of the main housing 12 for moving the vacuum cleaner 10 over a surface to be cleaned. The main housing 12 selectively mounts a separation/collection module 16, which is adapted to separate and collect dirt and other contaminants from a dirt-containing working airstream for later disposal.
FIG. 2 is a cross-sectional view though the vacuum cleaner 10. As illustrated herein, the separation/collection module 16 comprises a module housing 18 at least partially defining a cyclone separation chamber 20 for separating contaminants from a dirt-containing working airstream and an integrally-formed dirt collection chamber 22 which receives contaminants separated by the cyclone separation chamber 20.
The module housing 18 houses the cyclone separation chamber 20 and the collection chamber 22, and includes a side wall 24, a bottom wall 26, and a cover 28. The side wall 24 is illustrated herein as being generally cylindrical in shape. The bottom wall 26 comprises a dirt door that can be selectively opened to empty debris collected the collection chamber 22.
An air inlet 25 (FIG. 1) to the separation/collection module 16 is formed in the side wall 24, and an air outlet 27 from the separation/collection module 16 is formed in the cover 28.
The main housing 12 also houses a suction source, such as a vacuum fan/motor assembly 30 for generating a working air flow through a working air path. The vacuum/fan motor assembly 30 can be mounted within a motor cavity 29 formed within the main housing 12. The main housing 12 can further comprise a post-motor filter housing 32 formed below the motor cavity 29, which is in fluid communication with the vacuum fan/motor assembly 30, and receives a filter media 31 for filtering air exhausted from the vacuum fan/motor assembly 30 before the air exits the vacuum cleaner 10 through exhaust vents 33 on a rearward portion of the main housing 12.
The main housing 12 is supported by a pair of rear wheels 14, which are rotatably mounted to a rearward portion and a front wheel 15 (FIG. 2) that can be swivelably mounted to a forward portion of the main housing 12 for moving the vacuum cleaner 10 over a surface to be cleaned. The main housing 12 selectively mounts a separation/collection module 16, which is adapted to separate and collect dirt and other contaminants from a dirt-containing working airstream for later disposal.
FIG. 2 is a cross-sectional view though the vacuum cleaner 10. As illustrated herein, the separation/collection module 16 comprises a module housing 18 at least partially defining a cyclone separation chamber 20 for separating contaminants from a dirt-containing working airstream and an integrally-formed dirt collection chamber 22 which receives contaminants separated by the cyclone separation chamber 20.
The module housing 18 houses the cyclone separation chamber 20 and the collection chamber 22, and includes a side wall 24, a bottom wall 26, and a cover 28. The side wall 24 is illustrated herein as being generally cylindrical in shape. The bottom wall 26 comprises a dirt door that can be selectively opened to empty debris collected the collection chamber 22.
An air inlet 25 (FIG. 1) to the separation/collection module 16 is formed in the side wall 24, and an air outlet 27 from the separation/collection module 16 is formed in the cover 28.
The main housing 12 also houses a suction source, such as a vacuum fan/motor assembly 30 for generating a working air flow through a working air path. The vacuum/fan motor assembly 30 can be mounted within a motor cavity 29 formed within the main housing 12. The main housing 12 can further comprise a post-motor filter housing 32 formed below the motor cavity 29, which is in fluid communication with the vacuum fan/motor assembly 30, and receives a filter media 31 for filtering air exhausted from the vacuum fan/motor assembly 30 before the air exits the vacuum cleaner 10 through exhaust vents 33 on a rearward portion of the main housing 12.
-3-While the cyclone separation chamber 20 and collection chamber 22 are shown herein as being integrally formed, it is also contemplated that the separation/collection module 16 can be provided with a separate dirt cup having a closed or fixed bottom wall and that is removable from the cyclone separation chamber 20 to empty dirt collected therein.
Furthermore, it is contemplated that the separation/collection module 16 can be configured with multiple separation stages or a single separation stage. As illustrated herein, the separation/collection module 16 is shown as a cyclone separation chamber 20.
However, it is understood that other types of separation/collection modules can be used, such as centrifugal separators, bulk separators or filter bag separators, for example.
When the separation/collection module 16 is mounted to the main housing 12 as shown in FIGS. 1 and 2, the air outlet 27 of the separation/collection module 16 is in fluid communication with the vacuum fan/motor assembly 30 and the air inlet 25 is fluidly connected to the upstream portion of the working air path, which can comprise a flexible suction hose 34, a suction wand assembly 36 and various interchangeable accessory tools and cleaning attachments. The suction hose 34 can comprises a hose connector 38 mounted on a first end 40 for fluid connection to a handle assembly 42 and a hose cuff 44 mounted on a second end 46 for connection to the main housing 12. The suction hose 34 can comprise flexible blow-molded or wire reinforced hose, for example.
FIG. 3 is a cross-sectional view through line A-A of FIG. 1. The hose cuff 44 can be configured to selectively and fluidly connect the second end 46 of the suction hose 34 to an inlet connector 48 on the main housing 12. A cuff locking mechanism 50 can be provided on the hose cuff 44 for selectively retaining the hose cuff 44 to the inlet connector 48. The locking mechanism has been illustrated in the drawings as a pair of spring-biased locking tabs 52 that are pivotally mounted within mounting pockets 54 formed on the sides of a hose cuff body 56. Each locking tab 52 includes an outward facing hook portion 58 for selectively retaining a corresponding retainer rim 59 formed within the inlet connector 48.
FIG. 4 is a cross-sectional view through line B-B of FIG. 1. The hose connector 38 can selectively and fluidly connect the first end 40 of the suction hose 34 to a handle assembly 42. The hose connector 38 can comprise a connector locking mechanism 60 for retaining the hose connector 38 to a portion of the handle assembly 42. As illustrated herein the connector
Furthermore, it is contemplated that the separation/collection module 16 can be configured with multiple separation stages or a single separation stage. As illustrated herein, the separation/collection module 16 is shown as a cyclone separation chamber 20.
However, it is understood that other types of separation/collection modules can be used, such as centrifugal separators, bulk separators or filter bag separators, for example.
When the separation/collection module 16 is mounted to the main housing 12 as shown in FIGS. 1 and 2, the air outlet 27 of the separation/collection module 16 is in fluid communication with the vacuum fan/motor assembly 30 and the air inlet 25 is fluidly connected to the upstream portion of the working air path, which can comprise a flexible suction hose 34, a suction wand assembly 36 and various interchangeable accessory tools and cleaning attachments. The suction hose 34 can comprises a hose connector 38 mounted on a first end 40 for fluid connection to a handle assembly 42 and a hose cuff 44 mounted on a second end 46 for connection to the main housing 12. The suction hose 34 can comprise flexible blow-molded or wire reinforced hose, for example.
FIG. 3 is a cross-sectional view through line A-A of FIG. 1. The hose cuff 44 can be configured to selectively and fluidly connect the second end 46 of the suction hose 34 to an inlet connector 48 on the main housing 12. A cuff locking mechanism 50 can be provided on the hose cuff 44 for selectively retaining the hose cuff 44 to the inlet connector 48. The locking mechanism has been illustrated in the drawings as a pair of spring-biased locking tabs 52 that are pivotally mounted within mounting pockets 54 formed on the sides of a hose cuff body 56. Each locking tab 52 includes an outward facing hook portion 58 for selectively retaining a corresponding retainer rim 59 formed within the inlet connector 48.
FIG. 4 is a cross-sectional view through line B-B of FIG. 1. The hose connector 38 can selectively and fluidly connect the first end 40 of the suction hose 34 to a handle assembly 42. The hose connector 38 can comprise a connector locking mechanism 60 for retaining the hose connector 38 to a portion of the handle assembly 42. As illustrated herein the connector
-4-locking mechanism 60 can comprise a pair of opposed spring-biased retainers 62 that are pivotally mounted to a support wall 64 on the sides of a connector body 66.
When each retainer 62 is in the engaged position, a retainer hook portion 68 on an inner face of the retainer 62 is configured to protrude through a retainer slot 70 in the connector body 66 to lock the hose connector 38 onto a portion of the handle assembly 42. The retainer 62 can comprise a contact pad 72 on an outer surface for engagement by a user. A
biasing member (not shown) can be mounted beneath the contact pad 72, between the retainer 62 and the connector body 66 for normally biasing the retainer 62 into a locked position, as illustrated in the drawings. However, a user can depress the contact pad 72 to pivot the retainer 62 into an unlocked position, which rotates the retainer hook portion 68 out of the retainer slot 70 and releases the hose connector 38 from the handle assembly 42.
FIG. 5 is a partial exploded view of an upper portion of the wand assembly 36 and handle assembly 42. The hose connector 38 can further comprise a guide rib 74 and a pair of detent slots 76 for mounting interchangeable accessory tools. As illustrated herein, the guide rib 74 comprises a U-shaped rib that extends partially around the lower perimeter of the connector body 66. The guide rib 74 is angled relative to the connector body 66 and is formed parallel to a plane defined through a handle end face 78 of the connector body 66.
The detent slots 76 are formed adjacent to the ends of the U-shaped guide rib 74.
The handle assembly 42 comprises a grip portion 80 for facilitating movement of the wand assembly 36, interconnected suction hose 34 and main housing 12 by a user. The handle assembly 42 further defines a handle conduit 84 that forms a portion of the working air path. The handle conduit 84 is defined by a handle inlet 86 and handle outlet 88. The handle outlet 88 can be defined by a sleeve portion 90 with recessed detent slots 92 near a rearward portion. As illustrated herein, the sleeve portion 90 can have a generally rectangular cross-section configuration, although other cross-sectional configurations are possible. The hook portions 68 of the spring-biased retainers 62 on the connector locking mechanism 60 are configured to engage the detent slots 92 to lock the hose connector 38 onto the sleeve portion 90 so that a working airflow can be drawn through the handle conduit 84, suction hose 34 and downstream separator/collection module 16. The handle inlet 86 can be defined by a wand connector sleeve 94 that receives an upper portion of the wand assembly 36. As illustrated
When each retainer 62 is in the engaged position, a retainer hook portion 68 on an inner face of the retainer 62 is configured to protrude through a retainer slot 70 in the connector body 66 to lock the hose connector 38 onto a portion of the handle assembly 42. The retainer 62 can comprise a contact pad 72 on an outer surface for engagement by a user. A
biasing member (not shown) can be mounted beneath the contact pad 72, between the retainer 62 and the connector body 66 for normally biasing the retainer 62 into a locked position, as illustrated in the drawings. However, a user can depress the contact pad 72 to pivot the retainer 62 into an unlocked position, which rotates the retainer hook portion 68 out of the retainer slot 70 and releases the hose connector 38 from the handle assembly 42.
FIG. 5 is a partial exploded view of an upper portion of the wand assembly 36 and handle assembly 42. The hose connector 38 can further comprise a guide rib 74 and a pair of detent slots 76 for mounting interchangeable accessory tools. As illustrated herein, the guide rib 74 comprises a U-shaped rib that extends partially around the lower perimeter of the connector body 66. The guide rib 74 is angled relative to the connector body 66 and is formed parallel to a plane defined through a handle end face 78 of the connector body 66.
The detent slots 76 are formed adjacent to the ends of the U-shaped guide rib 74.
The handle assembly 42 comprises a grip portion 80 for facilitating movement of the wand assembly 36, interconnected suction hose 34 and main housing 12 by a user. The handle assembly 42 further defines a handle conduit 84 that forms a portion of the working air path. The handle conduit 84 is defined by a handle inlet 86 and handle outlet 88. The handle outlet 88 can be defined by a sleeve portion 90 with recessed detent slots 92 near a rearward portion. As illustrated herein, the sleeve portion 90 can have a generally rectangular cross-section configuration, although other cross-sectional configurations are possible. The hook portions 68 of the spring-biased retainers 62 on the connector locking mechanism 60 are configured to engage the detent slots 92 to lock the hose connector 38 onto the sleeve portion 90 so that a working airflow can be drawn through the handle conduit 84, suction hose 34 and downstream separator/collection module 16. The handle inlet 86 can be defined by a wand connector sleeve 94 that receives an upper portion of the wand assembly 36. As illustrated
-5-. .
herein, the wand connector sleeve 94 has a generally rectangular cross-section configuration, although other cross-sectional configurations are contemplated.
A wand locking mechanism 96 can be provided on the wand connector sleeve 94 for retaining the selectively removable suction wand assembly 36 to the handle inlet 86, or alternatively for selectively receiving either or both of a cleaning foot assembly 98 and an interchangeable accessory tool 100 (FIG. 1). Three accessory tools 100 are shown at different locations on the vacuum cleaner to illustrate the possible mounting configurations of the accessory tool 100.
The wand locking mechanism 96 has been illustrated as a spring-biased locking retainer 102 that is pivotally mounted to the wand connector sleeve 94. A
portion of the locking retainer 102 can protrude through the wand connector sleeve 94 for engaging and retaining the wand assembly 36 to the handle assembly 42.
The wand connector sleeve 94 further comprises a guide rib 104 and detent slots 106 for mounting the accessory tool 100. The guide rib 104 and detent slots 106 are substantially similar to the guide rib 74 and detent slots 76, such that the accessory tool 100 can be mounted in either location. As illustrated herein, the guide rib 104 comprises a U-shaped rib that extends partially around the perimeter of a lower portion of the sleeve 94. The guide rib 104 is angled relative to the sleeve 94 and is formed parallel to a plane defined through an end face 108 of the wand connector sleeve 94. The detent slots 106 are formed adjacent to the ends of the U-shaped guide rib 104.
FIG. 6 is an exploded view of a lower portion of the wand assembly 36 and the cleaning foot assembly 98. The suction wand assembly 36 has been illustrated as pair of telescoping tubes 116, 118 that define a portion of the working air path between a wand inlet 112 and a wand outlet 114. An outer tube 116 slidingly receives a corresponding inner tube 118 therein. The inner tube 118 can comprise a plurality of spaced detents 120 along a front side. A tube locking mechanism 122 is mounted around the periphery of an upper portion of the outer tube 116 and is configured to selectively engage the spaced detents 120 on the inner tube 118 for locking the inner tube 118 in various extended or retracted positions.
A wand connector 124 is fastened to the distal end of the inner tube 118 and defines the wand outlet 114. The wand connector 124 is configured for selective fluid connection to
herein, the wand connector sleeve 94 has a generally rectangular cross-section configuration, although other cross-sectional configurations are contemplated.
A wand locking mechanism 96 can be provided on the wand connector sleeve 94 for retaining the selectively removable suction wand assembly 36 to the handle inlet 86, or alternatively for selectively receiving either or both of a cleaning foot assembly 98 and an interchangeable accessory tool 100 (FIG. 1). Three accessory tools 100 are shown at different locations on the vacuum cleaner to illustrate the possible mounting configurations of the accessory tool 100.
The wand locking mechanism 96 has been illustrated as a spring-biased locking retainer 102 that is pivotally mounted to the wand connector sleeve 94. A
portion of the locking retainer 102 can protrude through the wand connector sleeve 94 for engaging and retaining the wand assembly 36 to the handle assembly 42.
The wand connector sleeve 94 further comprises a guide rib 104 and detent slots 106 for mounting the accessory tool 100. The guide rib 104 and detent slots 106 are substantially similar to the guide rib 74 and detent slots 76, such that the accessory tool 100 can be mounted in either location. As illustrated herein, the guide rib 104 comprises a U-shaped rib that extends partially around the perimeter of a lower portion of the sleeve 94. The guide rib 104 is angled relative to the sleeve 94 and is formed parallel to a plane defined through an end face 108 of the wand connector sleeve 94. The detent slots 106 are formed adjacent to the ends of the U-shaped guide rib 104.
FIG. 6 is an exploded view of a lower portion of the wand assembly 36 and the cleaning foot assembly 98. The suction wand assembly 36 has been illustrated as pair of telescoping tubes 116, 118 that define a portion of the working air path between a wand inlet 112 and a wand outlet 114. An outer tube 116 slidingly receives a corresponding inner tube 118 therein. The inner tube 118 can comprise a plurality of spaced detents 120 along a front side. A tube locking mechanism 122 is mounted around the periphery of an upper portion of the outer tube 116 and is configured to selectively engage the spaced detents 120 on the inner tube 118 for locking the inner tube 118 in various extended or retracted positions.
A wand connector 124 is fastened to the distal end of the inner tube 118 and defines the wand outlet 114. The wand connector 124 is configured for selective fluid connection to
-6-. .
the handle inlet 86. The wand connector 124 can comprise a wand connector detent 126 that can be engaged by the locking retainer 102 on the wand connector sleeve 94 to selectively lock the wand connector 124 to the handle inlet 86.
A lower wand connector 128 is fastened to the lower end of the outer tube 116 and defines the wand inlet 112. The lower wand connector 128 is configured to selectively receive either or both of the cleaning foot assembly 98 and the accessory tool 100. The structure of the lower wand connector 128 is similar to the wand connector sleeve 94 on the handle assembly 42. The lower wand connector 128 comprises a foot locking mechanism 134 for retaining a neck portion 138 of the selectively removable foot assembly 98 to the wand inlet 112. The foot locking mechanism 134 is similar to the wand locking mechanism 96 and has been illustrated as a spring-biased locking retainer 136, which is similar to locking retainer 102. Locking retainer 136 is pivotally mounted to the lower wand connector 128. A
portion of the locking retainer 136 protrudes through the outer tube 116 for engaging and retaining a detent depression 140 formed on the neck portion 138 of the foot assembly 98.
The lower wand connector 128 further comprises a guide rib 142 and detent slots 146, which are substantially identical to guide ribs 74, 104 and detent slots 76, 106, for mounting the accessory tool 100. As illustrated herein, the guide rib comprises a U-shaped rib that extends partially around the perimeter of the lower wand connector 128. The guide rib 142 is angled relative to the lower wand connector 128 body and is formed parallel to plane defined through an end face 144 of the lower wand connector 128. The detent slots 146 are formed adjacent to the ends of the U-shaped guide rib 142.
FIGS. 7-8 are an exploded perspective view of the accessory tool 100 according to as second embodiment of the invention, with FIG. 7 taken from a front perspective and FIG. 8 taken from a rear perspective. As illustrated, the accessory tool 100 comprises a cover housing 154 that mounts an inner housing 156 therein. A locking mechanism is configured to interchangeably lock the accessory tool 100 to any of the hose connector 38, the wand connector sleeve 94 on the handle assembly 42, or the lower wand connector 124. As illustrated herein, the locking mechanism comprises opposed locking buttons 158 that are pivotally mounted to the sides of the accessory tool 100.
the handle inlet 86. The wand connector 124 can comprise a wand connector detent 126 that can be engaged by the locking retainer 102 on the wand connector sleeve 94 to selectively lock the wand connector 124 to the handle inlet 86.
A lower wand connector 128 is fastened to the lower end of the outer tube 116 and defines the wand inlet 112. The lower wand connector 128 is configured to selectively receive either or both of the cleaning foot assembly 98 and the accessory tool 100. The structure of the lower wand connector 128 is similar to the wand connector sleeve 94 on the handle assembly 42. The lower wand connector 128 comprises a foot locking mechanism 134 for retaining a neck portion 138 of the selectively removable foot assembly 98 to the wand inlet 112. The foot locking mechanism 134 is similar to the wand locking mechanism 96 and has been illustrated as a spring-biased locking retainer 136, which is similar to locking retainer 102. Locking retainer 136 is pivotally mounted to the lower wand connector 128. A
portion of the locking retainer 136 protrudes through the outer tube 116 for engaging and retaining a detent depression 140 formed on the neck portion 138 of the foot assembly 98.
The lower wand connector 128 further comprises a guide rib 142 and detent slots 146, which are substantially identical to guide ribs 74, 104 and detent slots 76, 106, for mounting the accessory tool 100. As illustrated herein, the guide rib comprises a U-shaped rib that extends partially around the perimeter of the lower wand connector 128. The guide rib 142 is angled relative to the lower wand connector 128 body and is formed parallel to plane defined through an end face 144 of the lower wand connector 128. The detent slots 146 are formed adjacent to the ends of the U-shaped guide rib 142.
FIGS. 7-8 are an exploded perspective view of the accessory tool 100 according to as second embodiment of the invention, with FIG. 7 taken from a front perspective and FIG. 8 taken from a rear perspective. As illustrated, the accessory tool 100 comprises a cover housing 154 that mounts an inner housing 156 therein. A locking mechanism is configured to interchangeably lock the accessory tool 100 to any of the hose connector 38, the wand connector sleeve 94 on the handle assembly 42, or the lower wand connector 124. As illustrated herein, the locking mechanism comprises opposed locking buttons 158 that are pivotally mounted to the sides of the accessory tool 100.
-7-The cover housing 154 comprises a substantially U-shaped body 160 that is further defined by a front face 162 and opposed sidewalls 172 extending from the front face to define a bottom edge 164 and a top edge 166. The front face 162 is inclined relative to the top edge 166 such that an obtuse angle is formed between the front face 162 and the top edge 166. The bottom edge 164 is parallel to the top edge 166 such that an acute angle is formed between the bottom edge 164 and the front face 162.
An aperture 174 is formed in each of the opposed sidewalls 172 for receiving a locking button 158 therein. Each aperture 174 further comprises a rim 178 around the perimeter of the aperture 174. The rim 178 comprises mounting holes 180 that are configured to rotatably receive pivot pins 182 on the sides of the locking button 158.
The rim 178 further comprises a stop rib 184.
Pairs of opposed mounting channels 186 are formed on the inner surface of the sidewalls 172 for engaging and retaining corresponding mounting ribs 190 that are formed on the inner housing 156. Retainer hooks 194 protrude inwardly from a lower portion of the U-shaped outer wall 160 for retaining corresponding mounting pockets 196 on the inner housing 156.
The inner housing 156 is configured to be press-fit into the cover housing 154 and retained therein. As illustrated, the inner housing 156 comprises a substantially U-shaped body 198 having a top edge 202 and a lower edge 204. The lower edge 204 is configured to mount a cleaning implement 206. As illustrated herein, the cleaning implement comprises multiple bristle tufts 208. However, additional cleaning implements are contemplated, such as elastomeric nubs, flaps, or fingers for collecting hair or debris, or lint and hair collecting material such as directional fabric, or microfiber material, for example.
A spacer rib 210 on the outer surface of the U-shaped body 198 creates a gap between the outer surface of the U-shaped body 198 and the inner surface of the outer wall 160. Alignment ribs 214 on the outer surface of the U-shaped body 198 help maintain the gap 212 between the U-shaped body 198 and the outer wall 160. The U-shaped body 198 further comprises a U-shaped mounting groove 216 on the inner surface, near the lower edge 204 for mounting to a corresponding U-shaped guide rib 72, 104, 142 on either of the hose connector
An aperture 174 is formed in each of the opposed sidewalls 172 for receiving a locking button 158 therein. Each aperture 174 further comprises a rim 178 around the perimeter of the aperture 174. The rim 178 comprises mounting holes 180 that are configured to rotatably receive pivot pins 182 on the sides of the locking button 158.
The rim 178 further comprises a stop rib 184.
Pairs of opposed mounting channels 186 are formed on the inner surface of the sidewalls 172 for engaging and retaining corresponding mounting ribs 190 that are formed on the inner housing 156. Retainer hooks 194 protrude inwardly from a lower portion of the U-shaped outer wall 160 for retaining corresponding mounting pockets 196 on the inner housing 156.
The inner housing 156 is configured to be press-fit into the cover housing 154 and retained therein. As illustrated, the inner housing 156 comprises a substantially U-shaped body 198 having a top edge 202 and a lower edge 204. The lower edge 204 is configured to mount a cleaning implement 206. As illustrated herein, the cleaning implement comprises multiple bristle tufts 208. However, additional cleaning implements are contemplated, such as elastomeric nubs, flaps, or fingers for collecting hair or debris, or lint and hair collecting material such as directional fabric, or microfiber material, for example.
A spacer rib 210 on the outer surface of the U-shaped body 198 creates a gap between the outer surface of the U-shaped body 198 and the inner surface of the outer wall 160. Alignment ribs 214 on the outer surface of the U-shaped body 198 help maintain the gap 212 between the U-shaped body 198 and the outer wall 160. The U-shaped body 198 further comprises a U-shaped mounting groove 216 on the inner surface, near the lower edge 204 for mounting to a corresponding U-shaped guide rib 72, 104, 142 on either of the hose connector
-8-38, wand connector sleeve 94, or lower wand connector 128 when the accessory tool 100 is slidingly mounted thereon.
A slotted opening 218 is provided in opposed sides of the U-shaped body 198.
Each slotted opening 218 provides clearance for a locking protrusion 220 on the locking button 158 to pass therethrough and engage the detent slots 76, 106, 146 on any of the hose connector 38, wand connector sleeve 94 or lower wand connector 128. The locking button 158 further comprises a biasing member 222 for biasing the locking button 158 to the engaged position with the locking protrusion 220 extending through the slotted opening 218. As illustrated herein, the biasing member 222 comprises a spring, which is shown in the figures as a molded-in leaf spring that is formed integrally with the locking button 158.
When the pivot pins 182 of the locking button 158 are pivotally retained in the corresponding mounting holes 180, the distal end of the leaf spring 222 protrudes into the gap 212 and contacts the outer surface of the U-shaped body 198, which biases the locking protrusion 220 inwardly, through the slotted opening 218. The stop rib 184 is positioned to catch the upper inner portion of the locking button 158 to limit the inward position of the locking button 158 and locking protrusion 220. A release pad 226 is provided on the locking button 158 for engagement by the user.
FIG. 9 illustrates the accessory tool 100 installed on the wand connector sleeve 94.
The U-shaped accessory tool 100 wraps around the wand connector sleeve 94, with the locking protrusions 220 of the locking buttons 158 received in the detent slots 106. While not shown in FIG. 9, the U-shaped guide rib 104 of the wand connector sleeve 94 is also received by the mounting groove 216 of the accessory tool 100.
FIG. 10 illustrates the removal of the accessory tool 100 from the wand connector sleeve 94. A user presses the release pads 226 and the locking button 158 pivots to draw the locking protrusions 220 out of the detent slots 106. The leaf springs 222 compress against the inner housing 156. Holding the release pads 226 pressed, the U-shaped accessory tool 100 can be slid off the wand connector sleeve 94.
The installation of the accessory tool 100 on the hose connector 38 and the lower wand connector 128 is substantially similar. To install the interchangeable accessory tool 100 onto the hose connector 38, the wand connector sleeve 94, or the lower wand connector 128, a
A slotted opening 218 is provided in opposed sides of the U-shaped body 198.
Each slotted opening 218 provides clearance for a locking protrusion 220 on the locking button 158 to pass therethrough and engage the detent slots 76, 106, 146 on any of the hose connector 38, wand connector sleeve 94 or lower wand connector 128. The locking button 158 further comprises a biasing member 222 for biasing the locking button 158 to the engaged position with the locking protrusion 220 extending through the slotted opening 218. As illustrated herein, the biasing member 222 comprises a spring, which is shown in the figures as a molded-in leaf spring that is formed integrally with the locking button 158.
When the pivot pins 182 of the locking button 158 are pivotally retained in the corresponding mounting holes 180, the distal end of the leaf spring 222 protrudes into the gap 212 and contacts the outer surface of the U-shaped body 198, which biases the locking protrusion 220 inwardly, through the slotted opening 218. The stop rib 184 is positioned to catch the upper inner portion of the locking button 158 to limit the inward position of the locking button 158 and locking protrusion 220. A release pad 226 is provided on the locking button 158 for engagement by the user.
FIG. 9 illustrates the accessory tool 100 installed on the wand connector sleeve 94.
The U-shaped accessory tool 100 wraps around the wand connector sleeve 94, with the locking protrusions 220 of the locking buttons 158 received in the detent slots 106. While not shown in FIG. 9, the U-shaped guide rib 104 of the wand connector sleeve 94 is also received by the mounting groove 216 of the accessory tool 100.
FIG. 10 illustrates the removal of the accessory tool 100 from the wand connector sleeve 94. A user presses the release pads 226 and the locking button 158 pivots to draw the locking protrusions 220 out of the detent slots 106. The leaf springs 222 compress against the inner housing 156. Holding the release pads 226 pressed, the U-shaped accessory tool 100 can be slid off the wand connector sleeve 94.
The installation of the accessory tool 100 on the hose connector 38 and the lower wand connector 128 is substantially similar. To install the interchangeable accessory tool 100 onto the hose connector 38, the wand connector sleeve 94, or the lower wand connector 128, a
-9-user aligns the mounting groove 216 with the U-shaped guide rib 72, 104, 142 of the desired mounting location. The orientation of guide mounting groove 216 and locking button 158 on each side of the accessory tool 100 prevent mis-assembly and ensure proper orientation of the cleaning implement 206 relative to the surface to be cleaned. Next, the user slides the mounting groove 216 onto the guide rib 72, 104, 142, while simultaneously depressing the release pad 226 of the locking button 158 on both sides of the accessory tool 100. As the user depresses the release pad 226, the locking button 158 pivots about the pivot pins 182 that are rotatably mounted within mounting holes 180. The leaf spring 222 compresses against the adjacent U-shaped body 198 and the locking protrusion 220 rotates out of the slotted opening 218, away from the U-shaped body 198 and out of engagement with the corresponding detent slot 76, 106, 146 located on the hose connector 38, wand connector sleeve 94 or lower wand connector 128, respectively.
Next, the user continues to slide the mounting groove 216 onto the guide rib 72, 104, 142 until the tool 100 is fully seated. A user can release the locking buttons 158 either before or after the groove 216 is fully seated. When a user releases the release pad 226, the locking button 158 springs back to the engaged position under the biasing force of the spring 222.
The locking protrusion 220 rotates inwardly through the slotted opening 218 and engages the corresponding detent slot 76, 106, 146 on the hose connector 38, wand connector sleeve 94, and lower wand connector 128 respectively. The stop rib 184 catches the upper, inner portion of the locking button 158 to limit the inward rotation thereof If the locking button 158 is released prior to fully seating the accessory tool 100 onto the respective mounting location, the locking protrusion 220 will slide along the surface of the corresponding connector 38, 94, 128 until the tool 100 reaches the seated position and thereupon snaps into the corresponding detent slot 76, 106, 146 under the biasing force of the leaf spring 222.
The accessory tool 100 can be interchangeably mounted at any of the previously described connector mounting locations 38, 94, 128 by following the aforementioned steps.
Likewise, the accessory tool 100 can be removed from any of the previously described connector mounting locations 38, 94, 128 by reversing the aforementioned steps, e.g. first depressing the locking button 158 on both sides of the tool 100 and then sliding the mounting groove 216 off of the associated guide rib 72, 104, 142. Moreover, as previously described,
Next, the user continues to slide the mounting groove 216 onto the guide rib 72, 104, 142 until the tool 100 is fully seated. A user can release the locking buttons 158 either before or after the groove 216 is fully seated. When a user releases the release pad 226, the locking button 158 springs back to the engaged position under the biasing force of the spring 222.
The locking protrusion 220 rotates inwardly through the slotted opening 218 and engages the corresponding detent slot 76, 106, 146 on the hose connector 38, wand connector sleeve 94, and lower wand connector 128 respectively. The stop rib 184 catches the upper, inner portion of the locking button 158 to limit the inward rotation thereof If the locking button 158 is released prior to fully seating the accessory tool 100 onto the respective mounting location, the locking protrusion 220 will slide along the surface of the corresponding connector 38, 94, 128 until the tool 100 reaches the seated position and thereupon snaps into the corresponding detent slot 76, 106, 146 under the biasing force of the leaf spring 222.
The accessory tool 100 can be interchangeably mounted at any of the previously described connector mounting locations 38, 94, 128 by following the aforementioned steps.
Likewise, the accessory tool 100 can be removed from any of the previously described connector mounting locations 38, 94, 128 by reversing the aforementioned steps, e.g. first depressing the locking button 158 on both sides of the tool 100 and then sliding the mounting groove 216 off of the associated guide rib 72, 104, 142. Moreover, as previously described,
-10-. .
each of the interchangeable accessory tools 100 can comprise a similar or dissimilar cleaning implement 206. So, for example, one accessory tool 100 can be interchangeably mounted with another depending on the specific cleaning task or unique characteristics of the surface to be cleaned.
Referring to FIGS. 11-12, the foot assembly 98 comprises a housing 228 with a suction nozzle 230 formed at a lower surface thereof. An agitator 232 can be positioned within the housing 228 adjacent the suction nozzle 230. Wheels 234 are secured to a rearward portion of the foot assembly 98 for moving the foot assembly 98 over a surface to be cleaned.
When the foot assembly 98 is coupled with the vacuum cleaner 10, as shown in FIG. 1, the separation/collection module 16 is in fluid communication with, and fluidly positioned between, the suction nozzle 230 and the vacuum fan/motor assembly 30. At least a portion of the working air pathway between the suction nozzle 230 and the separation/collection module 16 can be formed by at least one or a combination of the wand assembly 36, handle assembly 42, and suction hose 34, which can be selectively disconnected from fluid communication with the suction nozzle 230 for other cleaning tasks.
The housing 228 comprises a base 236, which is fastened to a top cover 238 to form a cavity therebetween for mounting various components of the foot assembly 98. A
suction nozzle inlet 240 is defined by a rectangular opening in the base 236 and is fluidly connected to a suction conduit 242, which is fastened to the base 236 and forms a portion of the working air path through the housing 228. A flexible suction hose section 244 fluidly connects an outlet 246 of the suction conduit 242 to a joint assembly 250.
An agitator lift platform 252 is defined by a substantially rectangular member with a central opening 262 formed therein and guide sleeves 264 positioned near the corners. The top cover 238 comprises a plurality of corresponding guide posts 266 that extend through the guide sleeves 264 and are received within corresponding mounting bosses 268 on the base 236. Each guide sleeve 264 is slidingly mounted on the associated guide post 266 so that the lift platform 252 can slide vertically between the top cover 238 and base 236.
The lift platform 252 is biased upwardly by a biasing member, which has been illustrated as a coil spring 270 mounted around each guide post 266, between the guide sleeve 264 and mounting boss 268, to bias the lift platform 252 upwardly relative to the base 236. The central opening
each of the interchangeable accessory tools 100 can comprise a similar or dissimilar cleaning implement 206. So, for example, one accessory tool 100 can be interchangeably mounted with another depending on the specific cleaning task or unique characteristics of the surface to be cleaned.
Referring to FIGS. 11-12, the foot assembly 98 comprises a housing 228 with a suction nozzle 230 formed at a lower surface thereof. An agitator 232 can be positioned within the housing 228 adjacent the suction nozzle 230. Wheels 234 are secured to a rearward portion of the foot assembly 98 for moving the foot assembly 98 over a surface to be cleaned.
When the foot assembly 98 is coupled with the vacuum cleaner 10, as shown in FIG. 1, the separation/collection module 16 is in fluid communication with, and fluidly positioned between, the suction nozzle 230 and the vacuum fan/motor assembly 30. At least a portion of the working air pathway between the suction nozzle 230 and the separation/collection module 16 can be formed by at least one or a combination of the wand assembly 36, handle assembly 42, and suction hose 34, which can be selectively disconnected from fluid communication with the suction nozzle 230 for other cleaning tasks.
The housing 228 comprises a base 236, which is fastened to a top cover 238 to form a cavity therebetween for mounting various components of the foot assembly 98. A
suction nozzle inlet 240 is defined by a rectangular opening in the base 236 and is fluidly connected to a suction conduit 242, which is fastened to the base 236 and forms a portion of the working air path through the housing 228. A flexible suction hose section 244 fluidly connects an outlet 246 of the suction conduit 242 to a joint assembly 250.
An agitator lift platform 252 is defined by a substantially rectangular member with a central opening 262 formed therein and guide sleeves 264 positioned near the corners. The top cover 238 comprises a plurality of corresponding guide posts 266 that extend through the guide sleeves 264 and are received within corresponding mounting bosses 268 on the base 236. Each guide sleeve 264 is slidingly mounted on the associated guide post 266 so that the lift platform 252 can slide vertically between the top cover 238 and base 236.
The lift platform 252 is biased upwardly by a biasing member, which has been illustrated as a coil spring 270 mounted around each guide post 266, between the guide sleeve 264 and mounting boss 268, to bias the lift platform 252 upwardly relative to the base 236. The central opening
-11-262 surrounds the suction conduit 242 and provides sufficient clearance so that the lift platform 252 can slide vertically around the suction conduit 242.
The lift platform 252 further comprises an agitator connector 272 that is configured to releasably mount the agitator assembly 232 transversely therein. As illustrated, the agitator connector 272 comprises a mounting slot 274 formed in the front of the platform 252 for receiving a corresponding portion of the agitator assembly 232 transversely therein. As illustrated, the agitator connector 272 is located in front of the suction nozzle 230 such that, upon assembling the agitator assembly 232 to the agitator connector 272, the agitator assembly 232 is mounted forwardly of the suction nozzle 230. The lift platform 252 can also mount a squeegee or wiper blade 284 therein, which is located rearwardly of the suction nozzle inlet 240 for wiping fine dust or debris not ingested by the suction nozzle 230.
FIG. 13 is a partial exploded view of a portion of the cleaning foot assembly 98 of FIG. 11. The mounting slot 274 includes recessed channels 278 near the outboard ends which lead to U-shaped slots 280. The agitator assembly 232 comprises a support frame 286 further comprising an attachment portion 288 for receiving a cleaning member 290 and a mounting portion 276 for mounting to the agitator connector 272 on the lift platform 252. The attachment portion 288 can receive a variety of cleaning members. As illustrated, the cleaning member 290 comprises a plurality of bristle tufts 292. However, additional cleaning members are contemplated, such as for collecting hair and other debris. For example, alternate cleaning members can include flexible, elastomeric nubs, blades or fingers, directional fabric, or microfiber material. Optionally, a variety of agitator assemblies having different cleaning members can be provided with the vacuum cleaner 10 for cleaning various surfaces and performing various cleaning tasks.
The agitator assembly 232 can be inserted and removed from the mounting slot 274 in the lift platform 252 in a transverse direction, parallel to the surface to be cleaned. The mounting portion 276 comprises two mounting tabs 282 that extend rearwardly from the attachment portion 288 and which are received in the U-shaped slots 280 to mount the agitator assembly 232 to the lift platform 252. A transverse support wall 296 extends between the mounting portions 276. Each mounting tab 282 has been illustrated as a flexible, resilient, cantilever arm 298 with a raised pad 300 thereon.
The lift platform 252 further comprises an agitator connector 272 that is configured to releasably mount the agitator assembly 232 transversely therein. As illustrated, the agitator connector 272 comprises a mounting slot 274 formed in the front of the platform 252 for receiving a corresponding portion of the agitator assembly 232 transversely therein. As illustrated, the agitator connector 272 is located in front of the suction nozzle 230 such that, upon assembling the agitator assembly 232 to the agitator connector 272, the agitator assembly 232 is mounted forwardly of the suction nozzle 230. The lift platform 252 can also mount a squeegee or wiper blade 284 therein, which is located rearwardly of the suction nozzle inlet 240 for wiping fine dust or debris not ingested by the suction nozzle 230.
FIG. 13 is a partial exploded view of a portion of the cleaning foot assembly 98 of FIG. 11. The mounting slot 274 includes recessed channels 278 near the outboard ends which lead to U-shaped slots 280. The agitator assembly 232 comprises a support frame 286 further comprising an attachment portion 288 for receiving a cleaning member 290 and a mounting portion 276 for mounting to the agitator connector 272 on the lift platform 252. The attachment portion 288 can receive a variety of cleaning members. As illustrated, the cleaning member 290 comprises a plurality of bristle tufts 292. However, additional cleaning members are contemplated, such as for collecting hair and other debris. For example, alternate cleaning members can include flexible, elastomeric nubs, blades or fingers, directional fabric, or microfiber material. Optionally, a variety of agitator assemblies having different cleaning members can be provided with the vacuum cleaner 10 for cleaning various surfaces and performing various cleaning tasks.
The agitator assembly 232 can be inserted and removed from the mounting slot 274 in the lift platform 252 in a transverse direction, parallel to the surface to be cleaned. The mounting portion 276 comprises two mounting tabs 282 that extend rearwardly from the attachment portion 288 and which are received in the U-shaped slots 280 to mount the agitator assembly 232 to the lift platform 252. A transverse support wall 296 extends between the mounting portions 276. Each mounting tab 282 has been illustrated as a flexible, resilient, cantilever arm 298 with a raised pad 300 thereon.
-12-Referring to FIGS. 14-15, a lift pedal 302 is configured to selectively raise and lower the lift platform 252 between an upper position, in which the agitator 232 is lifted away from the surface to be cleaned F as best shown in FIG. 14, and a lower position, in which the agitator 232 is engaged with the surface to be cleaned F, as best shown in FIG. 15. Since the lift platform 252 can also mount the wiper blade 284, the wiper blade 284 can likewise be moved into and out of engagement with the surface to be cleaned F.
Referring to FIG. 12, the lift pedal 302 comprises a pedal body 304 that is connected to a cam rod 306. The cam rod 306 is pivotally mounted to bearing slots and bearing holes (not shown) formed on the top cover 238. A first cam protrusion 308 extends downwardly off a lower portion of the pedal body 304 and a second cam protrusion 310, which is parallel to the first cam protrusion 308, extends downwardly off of the distal end of the cam rod 306.
The first and second cam protrusions 308, 310 are configured to selectively contact a first and second raised ramped portion 312, 314 on the top surface of the lift platform 252. When the lift pedal 302 is rotated rearwardly (FIG. 15), the first cam protrusion 308 and second cam protrusion 310 rotate forwardly about the cam rod 306 and contact the first and second raised ramped portions 312, 314 and force the ramped protrusions 312, 314, and thus the entire platform 252, to slide downwardly on the guide posts 266 until the platform 252 reaches the lowermost position, in which the agitator 232 and wiper blade 284 are engaged with the surface to be cleaned (FIG. 15).
When the lift pedal 302 is rotated forwardly, the first cam protrusion 308 and second cam protrusion 310 slide rearwardly out of engagement with the first and second ramped portions 312, 314, which permits the platform 252 to slide upwardly on the guide posts 266 under the biasing force of the springs 270, until the platform 252 reaches the uppermost position, in which the agitator 232 and wiper blade 284 are lifted away from the surface to be cleaned (FIG. 14).
Referring to FIG. 12, the foot assembly 98 further comprises a lens 316 that is removably mounted to a front portion of the housing 228 to enclose an opening and for selectively accessing the lift platform 252 to remove or replace the agitator assembly 232. As illustrated herein, the lens 316 can span the width of the foot assembly 98 and partially cover the opening, which is defined by an upper cut-out portion 320 formed in a forward portion of
Referring to FIG. 12, the lift pedal 302 comprises a pedal body 304 that is connected to a cam rod 306. The cam rod 306 is pivotally mounted to bearing slots and bearing holes (not shown) formed on the top cover 238. A first cam protrusion 308 extends downwardly off a lower portion of the pedal body 304 and a second cam protrusion 310, which is parallel to the first cam protrusion 308, extends downwardly off of the distal end of the cam rod 306.
The first and second cam protrusions 308, 310 are configured to selectively contact a first and second raised ramped portion 312, 314 on the top surface of the lift platform 252. When the lift pedal 302 is rotated rearwardly (FIG. 15), the first cam protrusion 308 and second cam protrusion 310 rotate forwardly about the cam rod 306 and contact the first and second raised ramped portions 312, 314 and force the ramped protrusions 312, 314, and thus the entire platform 252, to slide downwardly on the guide posts 266 until the platform 252 reaches the lowermost position, in which the agitator 232 and wiper blade 284 are engaged with the surface to be cleaned (FIG. 15).
When the lift pedal 302 is rotated forwardly, the first cam protrusion 308 and second cam protrusion 310 slide rearwardly out of engagement with the first and second ramped portions 312, 314, which permits the platform 252 to slide upwardly on the guide posts 266 under the biasing force of the springs 270, until the platform 252 reaches the uppermost position, in which the agitator 232 and wiper blade 284 are lifted away from the surface to be cleaned (FIG. 14).
Referring to FIG. 12, the foot assembly 98 further comprises a lens 316 that is removably mounted to a front portion of the housing 228 to enclose an opening and for selectively accessing the lift platform 252 to remove or replace the agitator assembly 232. As illustrated herein, the lens 316 can span the width of the foot assembly 98 and partially cover the opening, which is defined by an upper cut-out portion 320 formed in a forward portion of
-13-the top cover 238 and a lower cut-out portion 322 formed in a forward portion of the base 236.
As illustrated, the lens 316 comprises a top wall 324, a front wall 326, and a bottom lip 328. A bumper 330 can be formed along the bottom edge of the front wall 326, and can extend over a portion of the top wall 324. The lens 316 can comprise a transparent thermoplastic material, such as acrylonitrile butadiene styrene (ABS) or polycarbonate (PC) for example. The bumper 330 can comprise an elastomeric, non-marring material such as thermoplastic rubber. Mounting hooks 332 extend rearwardly from a rear portion of the top wall 324. The mounting hooks 332 are configured to engage mounting apertures 334 in the top cover 238.
FIG. 16 is a partial perspective section view of the foot assembly 98 taken through line E-E of FIG. 11. Locking tabs 336 extend rearwardly from the outer portions of the bottom lip 328. Each locking tab 336 further comprises an inward facing L-shaped locking rib 340. The locking rib 340 includes an alignment rib portion 342, which is perpendicular to the front wall 326 and a locking rib portion 344, which is orthogonal to the alignment rib portion 342 and is oriented towards the center line of the lens 316. A chamfered vertical edge 346 is formed along the rear, inboard, vertical edge of the locking rib portion 344 for engaging a lens release button 348 that is pivotally mounted to a corresponding mounting pocket 349 formed in the forward side portions of the base 236. The button 348 comprises a contact pad 350 (FIG. 11) on an outer surface that can be depressed by a user. The button 348 can be spring-biased outwardly by a spring 354 mounted between the release button 348 and the mounting pocket 349. Each button 348 further comprises a recessed notch 352 formed on a lower portion of an outward facing wall for retaining the locking rib portion 344.
Referring to FIG. 11, the multi-axis joint assembly 250 is configured to rotate the neck portion 138 of the foot assembly 98 about two different axes relative to the foot housing 228.
The joint assembly 250 is configured to permit the neck portion 138 to twist about a first axis Z and pivot about a second axis X. Twisting the neck portion 138 about the first axis Z can change the angle between the neck portion 138 and the foot housing 228 relative to the surface to be cleaned, which can facilitate turning the foot assembly 98 left or right. Pivoting the neck portion 138 about the second axis X allows the neck portion 138 to be moved
As illustrated, the lens 316 comprises a top wall 324, a front wall 326, and a bottom lip 328. A bumper 330 can be formed along the bottom edge of the front wall 326, and can extend over a portion of the top wall 324. The lens 316 can comprise a transparent thermoplastic material, such as acrylonitrile butadiene styrene (ABS) or polycarbonate (PC) for example. The bumper 330 can comprise an elastomeric, non-marring material such as thermoplastic rubber. Mounting hooks 332 extend rearwardly from a rear portion of the top wall 324. The mounting hooks 332 are configured to engage mounting apertures 334 in the top cover 238.
FIG. 16 is a partial perspective section view of the foot assembly 98 taken through line E-E of FIG. 11. Locking tabs 336 extend rearwardly from the outer portions of the bottom lip 328. Each locking tab 336 further comprises an inward facing L-shaped locking rib 340. The locking rib 340 includes an alignment rib portion 342, which is perpendicular to the front wall 326 and a locking rib portion 344, which is orthogonal to the alignment rib portion 342 and is oriented towards the center line of the lens 316. A chamfered vertical edge 346 is formed along the rear, inboard, vertical edge of the locking rib portion 344 for engaging a lens release button 348 that is pivotally mounted to a corresponding mounting pocket 349 formed in the forward side portions of the base 236. The button 348 comprises a contact pad 350 (FIG. 11) on an outer surface that can be depressed by a user. The button 348 can be spring-biased outwardly by a spring 354 mounted between the release button 348 and the mounting pocket 349. Each button 348 further comprises a recessed notch 352 formed on a lower portion of an outward facing wall for retaining the locking rib portion 344.
Referring to FIG. 11, the multi-axis joint assembly 250 is configured to rotate the neck portion 138 of the foot assembly 98 about two different axes relative to the foot housing 228.
The joint assembly 250 is configured to permit the neck portion 138 to twist about a first axis Z and pivot about a second axis X. Twisting the neck portion 138 about the first axis Z can change the angle between the neck portion 138 and the foot housing 228 relative to the surface to be cleaned, which can facilitate turning the foot assembly 98 left or right. Pivoting the neck portion 138 about the second axis X allows the neck portion 138 to be moved
-14-forward and backward with respect to the foot housing 228, between upright and reclined use positions. The first axis Z may be at an angle to the surface to be cleaned, while the second axis X may be generally horizontal or parallel to the surface to be cleaned.
FIG. 17 is an exploded view of the multi-axis joint assembly 250. The multi-axis joint assembly 250 comprises a joint connector assembly 248 that is received on the lower end of the neck portion 138. The connector assembly 248 comprises a front joint cover 362 and a rear joint cover 364 that are fastened together around an internal hose coupling 366, which is cradled therebetween. The front joint cover 362 and rear joint cover 364 form opposed joint pivot legs 368. Each pivot leg 368 includes a trunnion 370 that is pivotally mounted between upper cradle ribs (not shown) and lower cradle ribs 374 formed in the top cover 238 and base 236 respectively so that the joint connector assembly 248 can pivot about the second axis X.
The hose coupling 366 comprises an inlet 376 that is fluidly connected to the flexible hose section 244 (FIG. 12). An outlet 378 of the hose coupling 366 is defined by a sleeve 380 that is configured to receive an inlet conduit 382 of the neck portion 138, which defines an internal passageway 384 therethrough. An annular seal 386 is mounted in a first annular groove 388 around the perimeter of the inlet conduit 382 to prevent air leaks between the hose coupling 366 and the neck portion 138. A bearing ring 390 is seated within a second annular groove 392 formed around the inlet conduit 382 to provide facile, smooth rotation between the hose coupling 366 and the neck portion 138. The bearing ring 390 can comprise interlocks 394 that engage locking slots 396 on the hose coupling outlet 378 to permanently and axially retain the neck portion 138 onto the joint connector assembly 248.
When the neck portion 138 is assembled to the joint connector assembly 248, the neck portion 138 can twist about the Z axis relative to the joint connector assembly 248 on the bearing ring 390.
Additionally, the neck portion 138 can pivot together with the joint connector assembly 248 about the X-axis axis on the trunnions 370 that are rotatably mounted between the top cover 238 and the base 236.
In operation, the foot assembly 98 can be fluidly connected to the lower wand connector 128 or the wand connector sleeve 94, which can, in turn, be connected to a downstream working air path, including the suction hose 34 and the suction source 30 in the main housing 12 for generating a working air flow therethrough. The working air flow can be
FIG. 17 is an exploded view of the multi-axis joint assembly 250. The multi-axis joint assembly 250 comprises a joint connector assembly 248 that is received on the lower end of the neck portion 138. The connector assembly 248 comprises a front joint cover 362 and a rear joint cover 364 that are fastened together around an internal hose coupling 366, which is cradled therebetween. The front joint cover 362 and rear joint cover 364 form opposed joint pivot legs 368. Each pivot leg 368 includes a trunnion 370 that is pivotally mounted between upper cradle ribs (not shown) and lower cradle ribs 374 formed in the top cover 238 and base 236 respectively so that the joint connector assembly 248 can pivot about the second axis X.
The hose coupling 366 comprises an inlet 376 that is fluidly connected to the flexible hose section 244 (FIG. 12). An outlet 378 of the hose coupling 366 is defined by a sleeve 380 that is configured to receive an inlet conduit 382 of the neck portion 138, which defines an internal passageway 384 therethrough. An annular seal 386 is mounted in a first annular groove 388 around the perimeter of the inlet conduit 382 to prevent air leaks between the hose coupling 366 and the neck portion 138. A bearing ring 390 is seated within a second annular groove 392 formed around the inlet conduit 382 to provide facile, smooth rotation between the hose coupling 366 and the neck portion 138. The bearing ring 390 can comprise interlocks 394 that engage locking slots 396 on the hose coupling outlet 378 to permanently and axially retain the neck portion 138 onto the joint connector assembly 248.
When the neck portion 138 is assembled to the joint connector assembly 248, the neck portion 138 can twist about the Z axis relative to the joint connector assembly 248 on the bearing ring 390.
Additionally, the neck portion 138 can pivot together with the joint connector assembly 248 about the X-axis axis on the trunnions 370 that are rotatably mounted between the top cover 238 and the base 236.
In operation, the foot assembly 98 can be fluidly connected to the lower wand connector 128 or the wand connector sleeve 94, which can, in turn, be connected to a downstream working air path, including the suction hose 34 and the suction source 30 in the main housing 12 for generating a working air flow therethrough. The working air flow can be
-15-drawn through an internal working air path defined by the suction nozzle inlet 240, suction conduit 242, suction hose 34, and multi axis joint assembly 250. The user can operate the lift platform 252 for raising and lowering an agitator assembly 232 and wiper 284 into and out of engagement with the surface to be cleaned by selectively depressing the lift pedal 302 rearwardly or forwardly, as described above.
A user can optionally remove the lens 316 and agitator assembly 232. To remove the lens 316 for cleaning or to access and replace the agitator assembly 232, a user depresses the contact pad 350, which pivots the lens release button 348 inwardly and rotates the notch 352 inwardly, out of engagement with the locking rib portion 344 so that the lens 316 can be pulled away from the front of the housing 228 by sliding the lens 316 forwardly until the mounting hooks 332 are disengaged from the mounting apertures 334.
To remove the agitator assembly 232 from the agitator connector 272, a user depresses each raised pad 300 on the mounting tabs 282 downwardly so the cantilever arm 298 deflects and the raised pad 300 clears the U-shaped slot 280. Next, the user pulls the agitator support frame 286 forwardly until the mounting tabs 282 and transverse support wall 296 slide out of the recessed channels 278 and mounting slot 274 in the lift platform 252, thereby releasing the agitator assembly 232 from the lift platform 252 for cleaning, replacement, or for exchanging the agitator for another agitator with a different cleaning member. Likewise, to install the agitator assembly 232 a user aligns the platform mounting portion 276 with the mounting slot 274 and slides the mounting tabs 282 and transverse support wall 296 into the mounting slot 274. Each raised pad 300 slides into a recessed channel 278, which causes the cantilever arm 298 to flex downwardly. When the raised pad 300 reaches the U-shaped slot 280, the cantilever arm 298 springs back to its original position so that a portion of the raised pad 300 abuts the wall of the U-shaped slot 280 to retain the platform mounting portion 276 within the mounting slot 274.
A user can reinstall the lens 316 by inserting the mounting hooks 332 into the mounting apertures 334 while aligning the alignment rib portion 342 on the L-shaped locking rib 340 with an edge of the lower cut-out portion 322. Next, the user slides the lens 316 rearwardly into a seated position. The chamfered vertical edge 346 contacts the release button 348 and forces the button 348 to pivot inwardly, which permits the locking rib portion 344 to
A user can optionally remove the lens 316 and agitator assembly 232. To remove the lens 316 for cleaning or to access and replace the agitator assembly 232, a user depresses the contact pad 350, which pivots the lens release button 348 inwardly and rotates the notch 352 inwardly, out of engagement with the locking rib portion 344 so that the lens 316 can be pulled away from the front of the housing 228 by sliding the lens 316 forwardly until the mounting hooks 332 are disengaged from the mounting apertures 334.
To remove the agitator assembly 232 from the agitator connector 272, a user depresses each raised pad 300 on the mounting tabs 282 downwardly so the cantilever arm 298 deflects and the raised pad 300 clears the U-shaped slot 280. Next, the user pulls the agitator support frame 286 forwardly until the mounting tabs 282 and transverse support wall 296 slide out of the recessed channels 278 and mounting slot 274 in the lift platform 252, thereby releasing the agitator assembly 232 from the lift platform 252 for cleaning, replacement, or for exchanging the agitator for another agitator with a different cleaning member. Likewise, to install the agitator assembly 232 a user aligns the platform mounting portion 276 with the mounting slot 274 and slides the mounting tabs 282 and transverse support wall 296 into the mounting slot 274. Each raised pad 300 slides into a recessed channel 278, which causes the cantilever arm 298 to flex downwardly. When the raised pad 300 reaches the U-shaped slot 280, the cantilever arm 298 springs back to its original position so that a portion of the raised pad 300 abuts the wall of the U-shaped slot 280 to retain the platform mounting portion 276 within the mounting slot 274.
A user can reinstall the lens 316 by inserting the mounting hooks 332 into the mounting apertures 334 while aligning the alignment rib portion 342 on the L-shaped locking rib 340 with an edge of the lower cut-out portion 322. Next, the user slides the lens 316 rearwardly into a seated position. The chamfered vertical edge 346 contacts the release button 348 and forces the button 348 to pivot inwardly, which permits the locking rib portion 344 to
-16-slide passed the forward portion of the button 348 and seat within the notch 352 when the button 348 springs back into the locked position.
The vacuum cleaner disclosed herein includes an improved accessory tool 100.
One advantage that may be realized in the practice of some embodiments of the described vacuum cleaner is that the accessory tool 100 can be interchangeably mounted at various locations on the vacuum cleaner 10 such as the hose connector 38, wand connector sleeve 94 or lower wand connector 128 quickly and securely with less effort required than previous accessory tool designs. The improved accessory tool 100 disclosed herein comprises a mechanical locking mechanism to more securely retain the tool to the associated mounting connector.
Moreover, inserting accessory tools along the longitudinal axes of a suction wand, suction hose, or handle assembly can be unwieldy. Because the accessory tool 100 disclosed herein comprise a U-shaped body, the accessory tool 100 can be more easily mounted to and released from an outer surface of a corresponding mounting connector, thus reducing the effort and potential frustration of a user.
Another advantage that may be realized in the practice of some embodiments of the described vacuum cleaner is that the foot assembly 98 has been provided with a removable lens 316 that can be removed from a forward portion of the foot assembly 98 and a removable agitator assembly 232 that is releasably mounted to a horizontally oriented mounting slot 274 in the forward portion of a lift platform 252. Thus, the agitator 232 is accessible from the top forward portion of the foot assembly 98 and can be removed from the foot assembly 98 in a transverse direction, which alleviates the need to flip the foot over onto the back side to remove the agitator. Additionally, both the lens 316 and agitator assembly 232 are removable by hand without tools, which simplifies maintenance on the foot assembly 98.
Finally, the foot assembly 98 provides a more versatile foot assembly compared to previous designs, since alternate agitators can be installed for different cleaning needs.
While the invention has been specifically described in connection with certain specific embodiments thereof, it is to be understood that this is by way of illustration and not of limitation. The scope of the claims should not be limited by particular embodiments set forth herein, but should be construed in a manner consistent with the specification as a whole.
Hence, specific dimensions and other physical characteristics relating to the embodiments
The vacuum cleaner disclosed herein includes an improved accessory tool 100.
One advantage that may be realized in the practice of some embodiments of the described vacuum cleaner is that the accessory tool 100 can be interchangeably mounted at various locations on the vacuum cleaner 10 such as the hose connector 38, wand connector sleeve 94 or lower wand connector 128 quickly and securely with less effort required than previous accessory tool designs. The improved accessory tool 100 disclosed herein comprises a mechanical locking mechanism to more securely retain the tool to the associated mounting connector.
Moreover, inserting accessory tools along the longitudinal axes of a suction wand, suction hose, or handle assembly can be unwieldy. Because the accessory tool 100 disclosed herein comprise a U-shaped body, the accessory tool 100 can be more easily mounted to and released from an outer surface of a corresponding mounting connector, thus reducing the effort and potential frustration of a user.
Another advantage that may be realized in the practice of some embodiments of the described vacuum cleaner is that the foot assembly 98 has been provided with a removable lens 316 that can be removed from a forward portion of the foot assembly 98 and a removable agitator assembly 232 that is releasably mounted to a horizontally oriented mounting slot 274 in the forward portion of a lift platform 252. Thus, the agitator 232 is accessible from the top forward portion of the foot assembly 98 and can be removed from the foot assembly 98 in a transverse direction, which alleviates the need to flip the foot over onto the back side to remove the agitator. Additionally, both the lens 316 and agitator assembly 232 are removable by hand without tools, which simplifies maintenance on the foot assembly 98.
Finally, the foot assembly 98 provides a more versatile foot assembly compared to previous designs, since alternate agitators can be installed for different cleaning needs.
While the invention has been specifically described in connection with certain specific embodiments thereof, it is to be understood that this is by way of illustration and not of limitation. The scope of the claims should not be limited by particular embodiments set forth herein, but should be construed in a manner consistent with the specification as a whole.
Hence, specific dimensions and other physical characteristics relating to the embodiments
-17-disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise,
-18-
Claims (16)
1. A vacuum cleaner, comprising a main housing;
a suction source provided in the main housing and generating a working air flow for removing debris from a surface to be cleaned;
a separation/collection module mounted to the main housing in fluid communication with the suction source; and an accessory tool assembly comprising:
at least one suction inlet;
a U-shaped tool defining a mounting recess; and multiple mounting portions, each with an exterior having a cross-section complementary to the mounting recess, wherein the U-shaped tool can be interchangeably mounted on any of the multiple mounting portions by sliding the mounting recess onto one of the complementary exteriors.
a suction source provided in the main housing and generating a working air flow for removing debris from a surface to be cleaned;
a separation/collection module mounted to the main housing in fluid communication with the suction source; and an accessory tool assembly comprising:
at least one suction inlet;
a U-shaped tool defining a mounting recess; and multiple mounting portions, each with an exterior having a cross-section complementary to the mounting recess, wherein the U-shaped tool can be interchangeably mounted on any of the multiple mounting portions by sliding the mounting recess onto one of the complementary exteriors.
2. The vacuum cleaner of claim 1 wherein the accessory tool assembly comprises a wand and at least one of the multiple mounting portions is provided on the wand.
3. The vacuum cleaner of claim 2 wherein the accessory tool assembly further comprises a cleaning foot coupled with the wand.
4. The vacuum cleaner of claim 2 or claim 3 wherein the accessory tool assembly further comprises a handle assembly coupled with the wand and at least one of the multiple mounting portions is provided on the handle assembly.
5. The vacuum cleaner of claim 4 wherein the handle assembly comprises:
a grip portion for facilitating movement of the wand by a user; and a handle conduit in fluid communication with the wand.
a grip portion for facilitating movement of the wand by a user; and a handle conduit in fluid communication with the wand.
6. The vacuum cleaner of claim 4 wherein at least one of the multiple mounting portions is provided on the handle conduit.
7. The vacuum cleaner of any of claims 1-6 and further comprising a locking mechanism configured to interchangeably lock the U-shaped tool to any of the multiple mounting portions.
8. The vacuum cleaner of claim 7 wherein the locking mechanism comprises a pair of locking protrusions on opposed sides of the U-shaped tool and a pair of detent slots on the exterior of each multiple mounting portion configured to receive the locking protrusions.
9. The vacuum cleaner of claim 8 wherein the locking mechanism further comprises locking buttons pivotally mounted to opposed sides of the U-shaped tool and carrying the locking protrusions.
10. The vacuum cleaner of any of claims 7-9 wherein the locking mechanism further comprises a groove on the U-shaped tool and a corresponding guide rib on the exterior of each multiple mounting portion configured to be received by the groove.
11. The vacuum cleaner of claim 10 wherein the groove and the guide rib are U-shaped.
12. The vacuum cleaner of any of claims 1-11 wherein the U-shaped tool comprises a top edge and a lower edge having a cleaning implement.
13. The vacuum cleaner of claim 12 wherein the cleaning implement comprises multiple bristle tufts extending from the lower edge.
14. The vacuum cleaner of any of claims 1-13, and further comprising a flexible vacuum hose extending between the accessory tool assembly and the main housing.
15. The vacuum cleaner of any of claims 1-14 wherein the main housing comprises a canister unit that is maneuverable across a surface to be cleaned.
16. The vacuum cleaner of any of claims 1-15 wherein the separation/collection module comprises a cyclone separation chamber and a collection chamber configured to receive debris separated by the cyclone separation chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361771342P | 2013-03-01 | 2013-03-01 | |
| US61/771,342 | 2013-03-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2843333A1 CA2843333A1 (en) | 2014-09-01 |
| CA2843333C true CA2843333C (en) | 2021-05-04 |
Family
ID=51485265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2843333A Active CA2843333C (en) | 2013-03-01 | 2014-02-20 | Vacuum cleaner with accessory tool assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203841610U (en) |
| CA (1) | CA2843333C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2884260T3 (en) | 2017-01-31 | 2021-12-10 | Bissell Homecare Inc | Steam cleaning device |
| CN107435913A (en) * | 2017-08-24 | 2017-12-05 | 江西苏洋太阳能科技有限公司 | Fast disassembly type natural light tunnel illuminating device |
| USD860562S1 (en) | 2017-09-19 | 2019-09-17 | Kärcher North America, Inc. | Vacuum wand |
| AU2020289124B2 (en) * | 2019-06-05 | 2024-01-04 | Lg Electronics Inc. | Cleaner |
-
2014
- 2014-02-20 CA CA2843333A patent/CA2843333C/en active Active
- 2014-03-03 CN CN201420093888.3U patent/CN203841610U/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2843333A1 (en) | 2014-09-01 |
| CN203841610U (en) | 2014-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20180918 |