US20190313863A1 - Toilet seat hinge - Google Patents
Toilet seat hinge Download PDFInfo
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- US20190313863A1 US20190313863A1 US15/954,839 US201815954839A US2019313863A1 US 20190313863 A1 US20190313863 A1 US 20190313863A1 US 201815954839 A US201815954839 A US 201815954839A US 2019313863 A1 US2019313863 A1 US 2019313863A1
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- Prior art keywords
- damper
- clip
- hinge
- toilet seat
- arm
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/12—Hinges
Definitions
- the present application relates generally to the field of hinges that pivotally couple toilet seat assemblies to toilet bases/bowls. More specifically, this application relates to toilet seat hinges having improved damping systems to prevent slamming of the seat/lid of the toilet seat assembly onto the toilet base/bowl.
- the toilet seat hinge for use in rotatably coupling toilet seat assemblies to toilets.
- the toilet seat hinge includes a hinge base, a hinge pin, a damper, and a clip.
- the hinge base is mountable to a toilet and includes a body having a bore.
- the hinge pin is rotatable relative to the body and includes a first portion, which is disposed in the bore, and a second portion, which extends outside of the bore and is configured to engage part of a toilet seat assembly.
- the damper includes a sleeve rotatably mounted on the first portion; and an arm extending radially outward from the sleeve.
- the clip is disposed in the bore between the body and the damper, and the damper is rotatable relative to the clip such that in a first relative position, the arm is compressed a first amount by the clip to provide a first damping force, and in a second relative position, the arm is compressed a second amount by the clip to provide a second damping force.
- the second amount is greater than the first amount.
- At least one embodiment relates to a toilet seat hinge that includes a hinge base comprising a body having a bore; a hinge pin having a portion disposed in the bore, wherein the hinge pin is rotatable relative to the body; a damper that is rotatably mounted on the portion of the hinge pin and that includes a plurality of arms extending radially away from the hinge pin; and a clip disposed in the bore between the body and the damper, where the clip includes a body and a plurality of projections extending inwardly from the body of the clip.
- Rotation of the damper relative to the clip with the plurality of arms contacting the plurality of projections provides a first damping force
- rotation of the damper relative to the clip with the plurality of arms separated from the plurality of projections provides a second damping force that is less than the first damping force
- FIG. 1 is a perspective view of a toilet having a toilet seat hinge, according to this application.
- FIG. 2 is a partially exploded perspective view of an exemplary embodiment of a toilet seat and hinge.
- FIG. 3 is a perspective view of an exemplary embodiment of a toilet seat hinge, according to this application.
- FIG. 4 is a perspective view of part of the toilet seat hinge shown in FIG. 3 .
- FIG. 5 is a perspective view of an exemplary embodiment of a damper assembly for use with the toilet seat hinge shown in FIG. 3 .
- FIG. 6 is a perspective view of the damper pin and the damper shown in FIG. 5 .
- FIG. 7 is a perspective view of the damper pin shown in FIGS. 5 and 6 .
- FIG. 8 is a perspective view of the clip shown in FIG. 5 .
- FIG. 9 is a cross-sectional view of the toilet seat hinge shown in FIG. 3 through the damper assembly in a closed position of the seat.
- FIG. 10 is a cross-sectional view of the toilet seat hinge shown in FIG. 3 through the damper assembly in an open position of the seat.
- FIG. 11 is a cross-sectional view of the toilet seat hinge shown in FIG. 3 through the damper assembly in a damping position.
- FIG. 12 is another cross-sectional view of the toilet seat hinge shown in FIG. 3 through the damper assembly in the closed position of the seat.
- FIG. 13 is a perspective view of an exemplary embodiment of a toilet seat hinge, according to this application.
- FIG. 14 is another perspective view of the toilet seat hinge shown in FIG. 13 .
- FIG. 15 is a perspective view of the damper assembly shown in FIGS. 13 and 14 .
- FIG. 16 is another perspective view of the damper assembly shown in FIGS. 13 and 14 with the clip removed.
- FIG. 17 is a perspective view of an exemplary embodiment of a toilet seat hinge, according to this application.
- FIG. 18 is a perspective view of the damper assembly shown in FIG. 17 .
- FIG. 19 is a perspective view of the clip shown in FIG. 17 .
- FIG. 20 is a perspective view of an exemplary embodiment of a toilet seat hinge having a damper assembly, according to this application.
- FIG. 21 is a plan view of a damper assembly for use with the toilet seat hinge shown in FIG. 20 .
- FIG. 22 is a plan view of another damper assembly for use with the toilet seat hinge shown in FIG. 20 .
- FIG. 23 is an end view of the toilet seat hinge shown in FIG. 20 in a first position.
- FIG. 24 is an end view of the toilet seat hinge shown in FIG. 20 in a second position.
- FIG. 25 is an end view of the toilet seat hinge shown in FIG. 20 in a third position.
- FIG. 26 is perspective view of a hinge, according to this application.
- FIG. 27 is a perspective view of part of the hinge shown in FIG. 26 in an open position.
- FIG. 28 is a perspective view of part of the hinge shown in FIG. 26 in a closed position.
- FIG. 29 is another perspective view of part of the hinge shown in FIG. 26 .
- FIG. 30 is yet another perspective view of part of the hinge shown in FIG. 26 .
- toilet seat hinges having improved damping systems.
- Damping systems can employ hydraulics, springs, or other elements to prevent slamming of the toilet seat by damping movement (e.g., closing movement) of the seat.
- the toilet seat hinges disclosed herein include a rotational damper that provides a force (e.g., damping force, friction force, etc.) during rotation to prevent, for example, the toilet seat and/or lid from being slammed onto the toilet bowl during closing and/or the toilet tank during opening.
- FIGS. 1 and 2 illustrate an exemplary embodiment of a toilet 100 that includes a toilet base 101 , which has a bowl, and a toilet seat assembly 102 operatively coupled to a surface (e.g., a deck, a ledge, etc.) of the toilet base 101 to selectively cover/provide access to the bowl.
- the toilet seat assembly 102 includes a seat 103 configured to support a person, a lid 104 covering the seat 103 in FIG. 1 , and a hinge 105 (e.g., toilet seat hinge, hinge assembly, etc.) that rotatably couples the seat 103 and the lid 104 to the toilet base 101 and each other. As shown in FIG.
- the seat 103 includes a body 130 (e.g., an annular support) for supporting a person and two opposing and spaced apart collars 131 , with each collar 131 being configured to receive part of a hinge pin 106 of the hinge 105 (e.g., an outside shoulder) to rotatably couple the seat 103 to the hinge 105 .
- Each collar 131 is shown to include a bore 132 that extends inwardly from an interior surface of the collar 131 and receives a shoulder of the hinge pin 106 .
- Each collar 131 can rotatably couple the lid 104 to the seat 103 .
- the lid 104 includes a body 140 (e.g., a covering portion) and two opposing and spaced apart ears 141 extending from the body 140 for rotatably coupling to one of the two collars 131 .
- one of the ear 141 and the collar 131 includes a post for engaging a bore in the other element.
- the toilet seat assembly and the toilet seat hinges disclosed herein may be employed with any type of toilet (e.g., one-piece toilets, two-piece toilets, skirted toilets, smart toilets, etc.) and that the toilet 100 shown in FIG. 1 is only exemplary.
- the toilet seat hinges disclosed herein may be employed with any type of toilet seat assembly as well as other toilet attachment assemblies (e.g., bidet assemblies, sprayers, heated seats, smart devices, etc.).
- the hinge 105 includes a hinge base 150 that is mountable to the toilet 100 , such as to the toilet base 101 .
- the hinge base 150 includes an elongated body 151 (e.g., a hinge cover) and a base member 152 , which is configured to rest on part of the toilet 100 can be formed integrally with or separately from the body 151 .
- the body 151 alone or in combination with the base member 152 define a bore 153 extending longitudinally within the body 151 . Each bore 153 is accessible through an opening in a side of the body 151 .
- the bore 153 can extend through the entire body 151 such that two hinge pins can engage opposite ends of the same bore 153 , or the hinge base 150 can include two separated bores 153 with one bore 153 extending longitudinally into each side/end of the hinge base 150 . Also shown in FIGS. 2 and 3 , each bore 153 receives part of a hinge pin 106 (e.g., an inside shoulder) to rotatably couple the seat 103 and the lid 104 to the hinge base 150 .
- the hinge base 150 includes one or more mounts for securing the hinge 105 to the toilet 100 through one or more connectors (e.g., fasteners, fastening assemblies, hinge locks, etc.). As shown in FIG.
- the hinge base 150 includes two spaced apart mounts 158 extending from a side of the body 151 , where each mount 158 receives a connector to secure the mount 158 (and the hinge base 150 ) to the toilet 100 .
- Each mount 158 can be concealed by a cover 159 , as shown in FIG. 3 , and the cover 159 can be rotatably coupled to the hinge base 150 , if provided.
- the hinge 105 includes the hinge pin 106 (e.g., a damper pin) rotatably disposed in the bore 153 of the body 151 , a damper 107 disposed in the bore 153 and rotatably mounted on the hinge pin 106 , and a clip 108 disposed in the bore 153 between the body 151 and the damper 107 .
- the clip 108 couples to the inner wall of the body 151 (that defines the bore 153 ) to secure the hinge pin 106 and the damper 107 in place in the bore 153 while allowing relative rotation between the damper 107 and the clip 108 , as well as the hinge pin 106 and the clip 108 .
- the clip 108 can retain the hinge pin 106 and the damper 107 along a longitudinal axis LA and allow rotation of the hinge pin 106 and the damper 107 about the longitudinal axis LA.
- FIG. 5 illustrates the hinge pin 106 , the damper 107 , and the clip 108 coupled together with a section view showing the cutting plane (the end of the parts) for FIGS. 9-12 , which are discussed below.
- FIG. 6 illustrates the damper 107 coupled to the hinge pin 106 without the clip 108 .
- FIG. 7 illustrates an exemplary embodiment of the hinge pin 106 that includes a first portion 161 , which is configured to be disposed in the bore 153 , and a second portion 162 , which is configured to extend outside of the bore 153 (i.e., beyond the body 151 ) to engage part of the toilet seat assembly (e.g., the toilet seat base, the collar 131 , etc.).
- the first portion 161 includes a shaft 163 and one or more shoulders extending radially outward from the shaft 163 . As shown in FIG.
- a first annular shoulder 164 and a second annular shoulder 165 which is spaced apart from the first annular shoulder 164 , extend from first and second parts (e.g., ends) of the shaft 163 .
- the shaft 163 can be solid or hollow (as shown) and has an outer diameter that is sized to complement the damper 107 .
- the spacing distance between the shoulders 164 , 165 is sized based on a longitudinal length of the damper 107 .
- the shoulders 164 , 165 retain the damper 107 on the shaft 163 longitudinally.
- the first portion 161 can also include an outer shoulder 166 , which incrementally creates a sealing surface that helps prevent debris and fluid from entering the hinge base.
- An interference between a radially outer surface of the shoulder 166 and the hinge base 150 helps create an incremental frictional resistance for torque resistance, which can be used to enable improved seat layback (i.e., where the seat resists falling down after rotating open to about ninety degrees ( ⁇ 90°).
- the shoulder 166 can provide radial compression forces based on fit and geometry (e.g., the shape of the shoulder 166 can be oval to be variable) between the hinge base 150 and pin 106 that can lead to additional torque resistance.
- the second portion 162 of the hinge pin 106 is configured to couple to the seat 103 and/or the lid 104 .
- the second portion 162 includes a post 167 that engages the bore 132 in a collar 131 of the seat 103 .
- the post 167 can be key-way shaped (e.g., D-shaped, double d-shaped, splined, etc.) so that rotation of the seat 103 in-turn rotates the hinge pin 106 through the post 167 .
- the second portion 162 includes a shoulder 168 , which can engage the bore 153 or a portion thereof (e.g., the post 167 can engage an inner portion of the bore 153 having a complementary shape to the post, and the shoulder 168 can engage an outer portion of the bore 153 ). It is noted that the first and second portions 161 , 162 can be integrally formed as one part or separately formed and coupled together.
- the damper 107 includes a tubular body 170 that is shown configured as a sleeve, which is rotatably mounted on the shaft 163 of the first portion 161 of the hinge pin 106 .
- the body 170 surrounds a portion (e.g., of the shaft 163 ) of the hinge pin 106 .
- Extending radially outward from the body 170 is one or more arms 171 .
- a first arm 171 extends radially outward from a first location on the body 170 and a second arm 171 extends radially outward from a second location on the body 170 .
- the two arms 171 can extend radially outward from two opposite sides of the body 170 , so that the two arms 171 are generally 180 degrees (180°) apart.
- Each arm 171 is configured to be compressed by the clip 108 (e.g., a portion thereof) by a first amount (of compression) in a first relative position between the clip 108 and the damper 107
- each arm 171 is configured to be compressed by the clip 108 by a second amount (of compression), which is different than the first amount, in a second relative position between the clip 108 and the damper 107 . Also shown in FIG.
- each arm 171 is substantially “T” shaped having a radial member 172 , which extends radially from the sleeve, and a transverse member 173 , which is disposed at an end (e.g., an outer end) of and extends transverse to the radial member 172 .
- the outer surface of each transverse member 173 can be flat or can be semi-circular (e.g., having a diameter that nests with the inner diameter of the clip 108 ).
- the damper 107 can include one arm 171 or more than two arms 171 , and the number of arms 171 as well as the configuration (e.g., size, shape, material, etc.) of each arm can be tailored to provide a desired/designed damping force and/or friction force based on the application of the damper assembly.
- the damper 107 can optionally, include a shoulder 174 on each end of the body 170 . As shown in FIG. 6 , each shoulder 174 is annular in shape and located proximate to (e.g., abuts) one of the first and second shoulders 164 , 165 of the hinge pin 106 .
- the damper 107 is made from or includes a compliant (e.g., compressible, resilient, etc.) material that elastically deforms under the subjected load conditions (e.g., the damper compresses under compression loading from the clip) to aid in damping to prevent slamming of the seat/lid.
- the damper 107 is made from a thermoplastic elastomer (TPE) that is over-molded onto the hinge pin 106 , which is made from or includes a material that is more rigid than the damper, such that the damper 107 seals without bonding to the hinge pin 106 to allow the damper 107 to rotate relative to the hinge pin 106 .
- TPE thermoplastic elastomer
- the damper 107 can be made from or can include a thermoplastic polyurethane (TPE), such as a TPE/TPU resin; a thermoplastic vulcanizate (TPV), such as santoprene; any combination of these materials; or other suitable materials.
- TPE thermoplastic polyurethane
- TPV thermoplastic vulcanizate
- a damper including a TPV resin having between 70-90 durometer advantageously resisted bonding to a hinge pin (e.g., pin 106 ) including a polybutylene terephthalate (PBT) substrate resin and had a surface grip that was able to be tuned to release initially after molding and yet have enough “grip” (e.g., adhesion) while in rotation during use.
- compression set e.g., from the compression due to the clip
- elastomers having relative low compression set and relative high tear resistance performance are believed to provide consistent frictional forces resulting in consistent torque resistance over time.
- dampers other materials and methods can be employed for the dampers, as the dampers of this application are not limited to the exemplary materials noted herein.
- the damper material could be other elastomer materials beyond those described herein.
- thermoset elastomers such as silicon and neoprene, could provide alternate chemical resistances and resistance to wear performance to be applicable for use in the dampers of this application.
- FIG. 8 illustrates an exemplary embodiment of the clip 108 that includes a generally annular body 180 (e.g., a majority of the body is annular) having an outer diameter, which nests with the inner surface of the hinge base 150 that defines the bore 153 , and an inner diameter, which is sized based on a radial length between the two transverse members 173 of the damper 107 .
- the radial length can be less/shorter than the inner diameter so that the arms 171 of the damper 107 do not contact the portions of the body 180 having the inner diameter (i.e., there can be a gap between the arms 171 and the body 180 at locations having the inner diameter).
- the clip 108 includes one or more damping features that are configured to contact (e.g., and compress) the arms 171 of the damper 107 during certain ranges of travel of the damper 107 relative to the hinge pin 106 to provide damping/friction that resists rotation of the hinge pin 106 relative to the body 151 of the hinge base 150 . As shown in FIGS.
- the clip 108 includes two damping features located at two diametrically opposite locations of the body 180 , where each damping feature is configured as a ramped surface 181 (e.g., curved portion, arcuate portion, concave portion, etc.) that is inwardly curved and that extends radially inside of the inner surface (e.g., inner diameter) of the body 180 and in a direction parallel to the longitudinal axis.
- the clip 108 includes two ramped surfaces 181 extending inwardly of an inner surface of the body 180 from two separate locations of the body 180 . As shown in FIGS.
- the ramped surfaces 181 project radially inward far enough to create a predetermined interference fit with the arms 171 of the damper 107 , such that when the arms 171 are radially aligned with the ramped surfaces 181 , each arm 171 is compressed by a predetermined amount (e.g., distance) to provide the desired damping/friction force(s).
- the clip 108 can include a fewer number or a greater number of ramped surfaces 181 , which may be the same as or different from the number of arms 171 . As shown in FIG.
- the clip 108 includes a projection 182 that extends both radially inward from the inner diameter of the body 180 and along a length (in the longitudinal direction) of the clip 108 to limit the rotational travel of the damper 107 .
- the projection 182 is a rotational stop.
- the clip 108 can be configured as a snap-ring (e.g., C-clip, C-ring, etc.) having open ends (e.g., a longitudinal gap separating the two ends of the annular body 180 ) to allow the clip 108 to be compressed diametrically (e.g., from a squeezing action) to assemble the clip 108 into the bore 153 .
- the clip 108 includes one or more tabs 184 , where each tab 184 extends both radially outward from the outer diameter of the body 180 and along the length of the clip 108 . As shown in FIGS.
- the clip 108 includes a tab 184 proximate each of the two ends of the body 180 , as well as two tabs 184 diametrically opposite the opening between the two ends of the body 180 .
- each tab 184 is shown to have the same size (e.g., angular width), the tabs 184 can be configured having different sizes, such as to drive an alignment of the clip 108 relative to the body 151 of the hinge base 150 .
- the tabs 184 also prevent rotation of the clip 108 relative to the hinge base 150 .
- the hinge base 150 has a plurality of channels 154 aligned at different angular locations around the inner diameter, where each channel 154 receives one tab 184 .
- Each channel 154 extends radially outward from the bore 153 into the body 151 so that the channel 154 has an outer diameter that is greater than the diameter of the bore 153 .
- FIGS. 9-12 illustrate the hinge 105 in various positions of operation.
- the arms 171 of the damper 107 are generally aligned with the ramped surfaces 181 of the clip 108 in a closed position, which corresponds to a closed position of the seat 103 .
- raising the seat 103 rotates the damper 107 relative to the clip 108 in the clockwise direction until an arm 171 of the damper 107 is stopped by the projection 182 of the clip 108 .
- the damper 107 e.g., the lower arm 171 moving from the stop position up to contact with a ramped surface 181 of the clip 108
- the damper 107 and the clip 108 can provide a first force (e.g., friction force, damping force, both), which can be zero for the arrangement of a gap between the end of the arm 171 and the inner diameter of the body 180 or can be greater than zero for the arrangement having a predetermined interference fit between the arm 171 and the body 180 .
- a first force e.g., friction force, damping force, both
- the damper 107 e.g., the arm 171
- the clip 108 can provide a second force (e.g., friction force, damping force, both), which is greater than the first force.
- the interactions between the damper 107 and the clip 108 and the damper 107 and the hinge pin 106 can provide a first force that includes a damping force (e.g., compression force, spring force, etc.) and/or a friction force in response to a first level/amount of compression of the arms 171 by the clip 108 during the first range of travel.
- a damping force e.g., compression force, spring force, etc.
- the first force can be zero (i.e., for clearance, no compression) or greater than zero (i.e., first level of interference/compression).
- these same interactions can provide a second force in response to a second level/amount of compression of the arms 171 by the clip 108 , where the second force is greater than the first force.
- the first range of travel of the damper 107 (e.g., with the arms 171 out of contact with the ramped surfaces 181 ) can correspond to a first range of travel of the seat 103 from the open position toward the closed position
- the second range of travel of the damper 107 (e.g., with the arms 171 contacting with the ramped surfaces 181 ) can correspond to a second range of travel of the seat 103 from the first range of travel to the closed position.
- ramping of the arms 171 of the damper 107 onto the ramped surfaces 181 of the clip 108 increases the forces in a controlled manner between the damper 107 and the hinge pin 106 /clip 108 to provide repeatable anti-slam functionality of the seat assembly.
- FIGS. 13-16 illustrate an exemplary embodiment of a toilet seat hinge 205 that includes a hinge pin 206 disposed in the bore 153 of the body 151 of the hinge base 150 , a damper 207 disposed in the bore 153 and rotatably mounted on the hinge pin 206 , and a clip 208 disposed in the bore 153 between the body 151 and the damper 207 .
- the hinge pin 206 rotatably couples a toilet seat/lid to a hinge base and is configured basically the same as the hinge pin 106 discussed above, unless noted otherwise. As shown in FIGS.
- the damper 207 is configured similar to the damper 107 discussed above, except the damper 207 has a cross-sectional shape that is basically a four pointed star, with four fingers 271 (e.g., arms) extending away from a central portion 272 that is rotatably coupled to a shaft of the hinge pin 206 .
- the clip 208 is configured similar to the clip 108 discussed above, except the clip 208 has two projections 281 extending inwardly from an inner diameter of the body 280 that cooperate with the fingers 271 of the damper 207 to provide damping/friction force(s), and the clip 208 includes an inner channel 282 in the body 280 .
- the channel 282 is shown in FIG.
- the channel 282 is configured to receive an end of one finger 271 when the finger 271 is aligned with the channel 282 .
- the reduction to two arms/ribs e.g., the damper 107 illustrated in FIGS. 5-12
- the dampers having a shoulder e.g., shoulder 174
- a “T” shaped arm/rib e.g., arm 171 with a radial member 172 and a transverse member 173
- FIG. 17 illustrates an exemplary embodiment of a toilet seat hinge 305 that includes a hinge pin 306 disposed in the bore 153 of the body 151 of a hinge base, a damper 307 disposed in the bore 153 and rotatably mounted on the hinge pin 306 , and a clip 308 disposed in the bore 153 between the body 151 and the damper 307 .
- the hinge pin 306 rotatably couples a toilet seat/lid to the hinge base, and the hinge pin 306 is configured basically the same as the hinge pin 106 discussed above, unless noted otherwise.
- the damper 307 is configured basically the same as the damper 107 discussed above, unless noted otherwise.
- the damper 307 includes two arms 371 like that of the damper 107 .
- the end surface of each arm 371 can be curved (e.g., semi-circular having an outer diameter) or can be wedge shaped (e.g., having inclined surfaces that meet at a surface or along a line, pointed).
- the clip 308 is configured similar to the clip 108 discussed above, except where noted otherwise.
- One difference is the clip 308 has two wedge shaped projections 381 extending inwardly from an inner diameter of the body 380 that cooperate with the arms 371 of the damper 307 to provide a damping force and/or a friction force.
- Each projection 381 includes a flat inner portion and an inclined portion extending (at an oblique angle relative to the flat portion) from each end of the flat portion to the body 380 .
- the clip 308 includes an inner channel 382 in the body 380 .
- the channel 382 is shown in FIG. 19 as a concave recess that extends along the longitudinal length of the clip 308 .
- the channel 382 is configured to receive an end of an arm 371 when the arm 371 is aligned with the channel 382 .
- the channel 382 advantageously provides for easier assembly of the clip 308 by allowing the part to intentionally flex at the location of the channel 382 similar to a living hinge design feature.
- the clip 308 includes a single tab 384 at the bottom of the body 380 (as shown in FIG. 19 ), where the clip 108 has two spaced apart tabs 184 .
- the tab 384 engages a mating channel in the body 151 to couple the clip 308 to the body 151 in the bore 153 .
- FIGS. 20-25 illustrate an exemplary embodiment of a toilet seat hinge 405 that includes a relatively rigid hinge pin 406 disposed in the bore 153 of the body 151 of a hinge base 150 , a relatively resilient damper 407 disposed in the bore 153 and rotatably mounted on the hinge pin 406 , and a hinge clip 408 disposed in the bore 153 between the body 151 and the damper 407 .
- the hinge pin 406 includes a shaft 463 that has an oval cross-sectional shape (e.g., as opposed to circular, annular, etc.), which advantageously provides a variable compression on the damper 407 , which in-turn provides a variable torque resistance (e.g., increase torque resistance).
- a variable torque resistance e.g., increase torque resistance
- the damper 407 can be formed over (e.g., overmolded onto) the oval shaft 463 such that the damper 407 extends longitudinally beyond (e.g., past) one or more of the annular ribs (e.g., the first annular shoulder 164 , the second annular shoulder 165 ) to advantageously seal the hinge base (e.g., the chamber of the hinge base in which the damper 407 is located within). This advantageously seals the chamber in which the compression and friction occur, thereby making the system more repeatable.
- the arms 471 of the damper 407 are shown in FIG.
- the damper 407 is configured to improve tear resistance and control the reaction forces (e.g., to the center axis of the hinge pin 406 ).
- the hinge clip 408 includes a C-shaped body 480 having a substantially uniform inner diameter and outer diameter that is open at one end. Extending radially inward from two opposite sides of the inner diameter of the body 480 are two generally rectangular shaped projections 481 , which are configured to limit angular rotation of the damper 407 relative to the hinge clip 408 . Extending radially inward from the body 480 at a location between the two projections 481 is a third projection 482 that may cooperate with one or both of the projections 481 to further limit relative angular rotation between the damper 407 and the hinge clip 408 . One or more tabs 484 may extend radially outward from the outer diameter of the body 480 , such that each tab 484 engages an associated channel 154 in the hinge base 150 to prevent relative rotation between the hinge clip 408 and the hinge base 150 .
- the oval shaft 463 of the rigid hinge pin 406 is aligned to the overmold to create a non-uniform TPE material thickness. That is, creation of a non-uniform cross-sectional area of the arm(s) 471 of the damper 407 via the oval shaped pin enables an increased quantity of material (e.g., elastomer, etc.) to be available and compressed when the pin 406 rotates independently of the damper 407 .
- material e.g., elastomer, etc.
- each arm 471 provides more damper material, which acts akin to a larger spring element providing additional variable torque resistance, and the oval geometry incrementally applies a greater quantity of radial compression due to the increased interference seen during relative rotation between the elements (e.g., the damper 407 and the pin 406 and/or the clip 408 . As shown in FIG.
- the oval shaped shaft 463 of the hinge pin 406 will rotate relative to and out of phase with the oval shape of the damper 407 molded onto the hinge pin 406 , which compresses the flexible damper 407 (e.g., the arms 471 thereof) in reshaping the opening of the damper to create a variable compression load while the friction between the elements generates a variable torsional resistance.
- This variable compression load and torsional resistance can be in addition to forces created between the hinge clip 408 and the damper 407 , such as or similar to those discussed above for the other embodiments.
- the channels 254 can be ramped to create a ramped engagement between the hinge clip 408 and the hinge base 250 that resist rotation of the hinge clip 408 , such as by reducing/increasing (depending on the rotational direction) the diameter at the ends of the hinge clip 408 as the tabs 484 move along the ramp surfaces of the hinge base 250 , as shown in FIG. 25 .
- the system can be configured so that the radial compression will be highest when a relatively large torque (e.g., during slamming of the seat) is applied, such as by having the greatest amount of interference between the elements.
- additional forces can be generated/introduced by changing further round surfaces (e.g., exterior surfaces of the damper, interior/exterior surfaces of the hinge clip, the interior surfaces of the hinge base, etc.).
- a system can be configured so that when the seat is open, the ovals would align without interference (e.g., be in phase), and after rotating close, interference would be greatest when the ovals are perpendicular (e.g., about ninety degrees out of phase).
- the hinge 405 By providing a damper having a material (e.g., TPE/TPU resin) that does not bond (e.g., chemically) to the hinge pin (e.g., its material), the hinge 405 provides improved toughness (tear resistance), waxiness (surface tension), and durometer while providing the desired torque resistance and the required interference tolerance requirements.
- a material e.g., TPE/TPU resin
- the hinge pin e.g., its material
- the hinge 405 provides improved toughness (tear resistance), waxiness (surface tension), and durometer while providing the desired torque resistance and the required interference tolerance requirements.
- FIGS. 26-30 illustrate an exemplary embodiment of a toilet seat hinge 505 that includes a spring element that provides counter torque and/or frictional resistance in addition to the force(s) from the damper.
- the hinge 505 includes a hinge base (e.g., the hinge base 150 ) with a bore (e.g., the bore 153 ) in each of two opposite sides, where each bore 153 receives a hinge pin assembly.
- Each hinge pin assembly includes a relatively rigid hinge pin 506 , a relatively resilient damper 507 rotatably mounted on the hinge pin 506 , and a hinge clip 508 disposed around part of the damper 507 and received by the hinge base 150 in the associated bore 153 .
- damper 507 and the hinge clip 508 are shown configured the same as the damper 407 and the hinge clip 408 , respectively described above, so no further description is provided here for the damper 507 and the hinge clip 508 . Although, it is noted that any damper and/or clip described herein can be utilized with the spring element shown in FIGS. 26-30 .
- the hinge pin 506 is basically the same as the hinge pin 406 described above, except that the hinge pin 506 further includes a cam 565 disposed on the inner end (opposite the part that extends out from the hinge base). As shown in FIGS. 27-30 , the cam 565 includes a ramped surface 566 (e.g., a helical sweep ramp) that is configured to drive linear movement of a cam follower 590 (e.g., cam piston) upon rotation of the cam 565 , which rotates with the hinge pin 506 .
- a cam follower 590 e.g., cam piston
- the cam follower 590 has a lobe 591 shaped to nest with the ramped surface 566 (e.g., the shape of the lobe 591 can complement the shape of the ramped surface 566 ) so that the cam 565 and cam follower 590 are in a first relative position (e.g., open position, uncompressed position), as shown in FIG. 27 .
- the hinge 505 further includes a spring 595 (shown as a helical compression/coil spring), which is wound around a post 593 of the cam follower 590 , and a stop 597 , which can be coupled (e.g., fixedly coupled) to the hinge base and/or threaded to the hinge pin 506 .
- the cam follower 590 has a geometry that restricts or prevents rotation of the cam follower 590 relative to the stop 597 and the hinge pin 506 .
- the stop 597 can be configured to prevent relative rotation between the cam follower 590 and the stop 597 , such as by having a shaft 597 b with a key-way 597 c (e.g., rib, one or more splines, etc.) that engages a channel (e.g., groove) in the post 593 of the cam follower 590 as illustrated in FIG. 29 .
- the cam follower 590 can include a rib 597 d (e.g., one or more splines, etc.) as illustrated in FIG.
- the winding/compression and unwinding/decompression of the spring 595 creates counter torque (e.g., due to the cam surfaces), which can increase the total friction torque resistance in the system or allow a lower frictional torque resistance required from the internal damping geometries in the system without a reduction in the total friction torque resistance.
- the base member 152 e.g., a bottom hinge plate
- the hinge cover e.g., the body 151
- Each bore 153 can be defined by the body 151 alone or in combination with the base member 152 .
- the size of each bore 153 can be made to accommodate different sized damper assemblies.
- the stop locations in the hinge base 150 can be varied to accommodate damper assemblies having tailored sizes.
- the bottom hinge plate and/or the hinge cover can be designed with adjustable damper stop locations to allow the closure rate to be adjusted before/after assembly, such as by a homeowner and/or installer.
- cam is for the cam to be part of the damper (e.g., integrally formed therewith, formed separately and coupled thereto).
- the cam and damper can be overmolded onto the hinge pin to create new and variable frictional forces on the hinge pin's rib when the pin rotates and compresses the spring.
- Coupled means the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.
- exemplary is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments or designs (and such term is not intended to connote that such embodiments are necessarily extraordinary or superlative examples). Rather, use of the word “exemplary” is intended to present concepts in a concrete manner. Accordingly, all such modifications are intended to be included within the scope of the present disclosure. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the preferred and other exemplary embodiments without departing from the scope of the appended claims.
Abstract
Description
- The present application relates generally to the field of hinges that pivotally couple toilet seat assemblies to toilet bases/bowls. More specifically, this application relates to toilet seat hinges having improved damping systems to prevent slamming of the seat/lid of the toilet seat assembly onto the toilet base/bowl.
- At least one embodiment of the application relates to a toilet seat hinge for use in rotatably coupling toilet seat assemblies to toilets. The toilet seat hinge includes a hinge base, a hinge pin, a damper, and a clip. The hinge base is mountable to a toilet and includes a body having a bore. The hinge pin is rotatable relative to the body and includes a first portion, which is disposed in the bore, and a second portion, which extends outside of the bore and is configured to engage part of a toilet seat assembly. The damper includes a sleeve rotatably mounted on the first portion; and an arm extending radially outward from the sleeve. The clip is disposed in the bore between the body and the damper, and the damper is rotatable relative to the clip such that in a first relative position, the arm is compressed a first amount by the clip to provide a first damping force, and in a second relative position, the arm is compressed a second amount by the clip to provide a second damping force. The second amount is greater than the first amount.
- At least one embodiment relates to a toilet seat hinge that includes a hinge base comprising a body having a bore; a hinge pin having a portion disposed in the bore, wherein the hinge pin is rotatable relative to the body; a damper that is rotatably mounted on the portion of the hinge pin and that includes a plurality of arms extending radially away from the hinge pin; and a clip disposed in the bore between the body and the damper, where the clip includes a body and a plurality of projections extending inwardly from the body of the clip. Rotation of the damper relative to the clip with the plurality of arms contacting the plurality of projections provides a first damping force, and rotation of the damper relative to the clip with the plurality of arms separated from the plurality of projections provides a second damping force that is less than the first damping force.
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FIG. 1 is a perspective view of a toilet having a toilet seat hinge, according to this application. -
FIG. 2 is a partially exploded perspective view of an exemplary embodiment of a toilet seat and hinge. -
FIG. 3 is a perspective view of an exemplary embodiment of a toilet seat hinge, according to this application. -
FIG. 4 is a perspective view of part of the toilet seat hinge shown inFIG. 3 . -
FIG. 5 is a perspective view of an exemplary embodiment of a damper assembly for use with the toilet seat hinge shown inFIG. 3 . -
FIG. 6 is a perspective view of the damper pin and the damper shown inFIG. 5 . -
FIG. 7 is a perspective view of the damper pin shown inFIGS. 5 and 6 . -
FIG. 8 is a perspective view of the clip shown inFIG. 5 . -
FIG. 9 is a cross-sectional view of the toilet seat hinge shown inFIG. 3 through the damper assembly in a closed position of the seat. -
FIG. 10 is a cross-sectional view of the toilet seat hinge shown inFIG. 3 through the damper assembly in an open position of the seat. -
FIG. 11 is a cross-sectional view of the toilet seat hinge shown inFIG. 3 through the damper assembly in a damping position. -
FIG. 12 is another cross-sectional view of the toilet seat hinge shown inFIG. 3 through the damper assembly in the closed position of the seat. -
FIG. 13 is a perspective view of an exemplary embodiment of a toilet seat hinge, according to this application. -
FIG. 14 is another perspective view of the toilet seat hinge shown inFIG. 13 . -
FIG. 15 is a perspective view of the damper assembly shown inFIGS. 13 and 14 . -
FIG. 16 is another perspective view of the damper assembly shown inFIGS. 13 and 14 with the clip removed. -
FIG. 17 is a perspective view of an exemplary embodiment of a toilet seat hinge, according to this application. -
FIG. 18 is a perspective view of the damper assembly shown inFIG. 17 . -
FIG. 19 is a perspective view of the clip shown inFIG. 17 . -
FIG. 20 is a perspective view of an exemplary embodiment of a toilet seat hinge having a damper assembly, according to this application. -
FIG. 21 is a plan view of a damper assembly for use with the toilet seat hinge shown inFIG. 20 . -
FIG. 22 is a plan view of another damper assembly for use with the toilet seat hinge shown inFIG. 20 . -
FIG. 23 is an end view of the toilet seat hinge shown inFIG. 20 in a first position. -
FIG. 24 is an end view of the toilet seat hinge shown inFIG. 20 in a second position. -
FIG. 25 is an end view of the toilet seat hinge shown inFIG. 20 in a third position. -
FIG. 26 is perspective view of a hinge, according to this application. -
FIG. 27 is a perspective view of part of the hinge shown inFIG. 26 in an open position. -
FIG. 28 is a perspective view of part of the hinge shown inFIG. 26 in a closed position. -
FIG. 29 is another perspective view of part of the hinge shown inFIG. 26 . -
FIG. 30 is yet another perspective view of part of the hinge shown inFIG. 26 . - Referring generally to the Figures, disclosed in this application are toilet seat hinges having improved damping systems. Damping systems can employ hydraulics, springs, or other elements to prevent slamming of the toilet seat by damping movement (e.g., closing movement) of the seat. The toilet seat hinges disclosed herein include a rotational damper that provides a force (e.g., damping force, friction force, etc.) during rotation to prevent, for example, the toilet seat and/or lid from being slammed onto the toilet bowl during closing and/or the toilet tank during opening.
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FIGS. 1 and 2 illustrate an exemplary embodiment of atoilet 100 that includes atoilet base 101, which has a bowl, and atoilet seat assembly 102 operatively coupled to a surface (e.g., a deck, a ledge, etc.) of thetoilet base 101 to selectively cover/provide access to the bowl. Thetoilet seat assembly 102 includes aseat 103 configured to support a person, a lid 104 covering theseat 103 inFIG. 1 , and a hinge 105 (e.g., toilet seat hinge, hinge assembly, etc.) that rotatably couples theseat 103 and the lid 104 to thetoilet base 101 and each other. As shown inFIG. 2 , theseat 103 includes a body 130 (e.g., an annular support) for supporting a person and two opposing and spaced apartcollars 131, with eachcollar 131 being configured to receive part of ahinge pin 106 of the hinge 105 (e.g., an outside shoulder) to rotatably couple theseat 103 to thehinge 105. Eachcollar 131 is shown to include abore 132 that extends inwardly from an interior surface of thecollar 131 and receives a shoulder of thehinge pin 106. Eachcollar 131 can rotatably couple the lid 104 to theseat 103. As shown, the lid 104 includes a body 140 (e.g., a covering portion) and two opposing and spaced apartears 141 extending from thebody 140 for rotatably coupling to one of the twocollars 131. By way of example, one of theear 141 and thecollar 131 includes a post for engaging a bore in the other element. It is noted that the toilet seat assembly and the toilet seat hinges disclosed herein may be employed with any type of toilet (e.g., one-piece toilets, two-piece toilets, skirted toilets, smart toilets, etc.) and that thetoilet 100 shown inFIG. 1 is only exemplary. It is further noted that the toilet seat hinges disclosed herein may be employed with any type of toilet seat assembly as well as other toilet attachment assemblies (e.g., bidet assemblies, sprayers, heated seats, smart devices, etc.). - As shown in
FIGS. 2 and 3 , thehinge 105 includes ahinge base 150 that is mountable to thetoilet 100, such as to thetoilet base 101. Thehinge base 150 includes an elongated body 151 (e.g., a hinge cover) and abase member 152, which is configured to rest on part of thetoilet 100 can be formed integrally with or separately from thebody 151. Thebody 151 alone or in combination with thebase member 152 define abore 153 extending longitudinally within thebody 151. Eachbore 153 is accessible through an opening in a side of thebody 151. Thebore 153 can extend through theentire body 151 such that two hinge pins can engage opposite ends of thesame bore 153, or thehinge base 150 can include two separatedbores 153 with onebore 153 extending longitudinally into each side/end of thehinge base 150. Also shown inFIGS. 2 and 3 , eachbore 153 receives part of a hinge pin 106 (e.g., an inside shoulder) to rotatably couple theseat 103 and the lid 104 to thehinge base 150. Thehinge base 150 includes one or more mounts for securing thehinge 105 to thetoilet 100 through one or more connectors (e.g., fasteners, fastening assemblies, hinge locks, etc.). As shown inFIG. 2 , thehinge base 150 includes two spaced apartmounts 158 extending from a side of thebody 151, where eachmount 158 receives a connector to secure the mount 158 (and the hinge base 150) to thetoilet 100. Eachmount 158 can be concealed by acover 159, as shown inFIG. 3 , and thecover 159 can be rotatably coupled to thehinge base 150, if provided. - As shown in
FIG. 4 , thehinge 105 includes the hinge pin 106 (e.g., a damper pin) rotatably disposed in thebore 153 of thebody 151, adamper 107 disposed in thebore 153 and rotatably mounted on thehinge pin 106, and aclip 108 disposed in thebore 153 between thebody 151 and thedamper 107. Theclip 108 couples to the inner wall of the body 151 (that defines the bore 153) to secure thehinge pin 106 and thedamper 107 in place in thebore 153 while allowing relative rotation between thedamper 107 and theclip 108, as well as thehinge pin 106 and theclip 108. Theclip 108 can retain thehinge pin 106 and thedamper 107 along a longitudinal axis LA and allow rotation of thehinge pin 106 and thedamper 107 about the longitudinal axis LA.FIG. 5 illustrates thehinge pin 106, thedamper 107, and theclip 108 coupled together with a section view showing the cutting plane (the end of the parts) forFIGS. 9-12 , which are discussed below.FIG. 6 illustrates thedamper 107 coupled to thehinge pin 106 without theclip 108. -
FIG. 7 illustrates an exemplary embodiment of thehinge pin 106 that includes afirst portion 161, which is configured to be disposed in thebore 153, and asecond portion 162, which is configured to extend outside of the bore 153 (i.e., beyond the body 151) to engage part of the toilet seat assembly (e.g., the toilet seat base, thecollar 131, etc.). Thefirst portion 161 includes ashaft 163 and one or more shoulders extending radially outward from theshaft 163. As shown inFIG. 7 , a firstannular shoulder 164 and a secondannular shoulder 165, which is spaced apart from the firstannular shoulder 164, extend from first and second parts (e.g., ends) of theshaft 163. Theshaft 163 can be solid or hollow (as shown) and has an outer diameter that is sized to complement thedamper 107. The spacing distance between theshoulders damper 107. Theshoulders damper 107 on theshaft 163 longitudinally. Thefirst portion 161 can also include anouter shoulder 166, which incrementally creates a sealing surface that helps prevent debris and fluid from entering the hinge base. An interference between a radially outer surface of theshoulder 166 and thehinge base 150 helps create an incremental frictional resistance for torque resistance, which can be used to enable improved seat layback (i.e., where the seat resists falling down after rotating open to about ninety degrees (˜90°). In addition, theshoulder 166 can provide radial compression forces based on fit and geometry (e.g., the shape of theshoulder 166 can be oval to be variable) between thehinge base 150 and pin 106 that can lead to additional torque resistance. - The
second portion 162 of thehinge pin 106 is configured to couple to theseat 103 and/or the lid 104. As shown inFIG. 7 , thesecond portion 162 includes apost 167 that engages thebore 132 in acollar 131 of theseat 103. Thepost 167 can be key-way shaped (e.g., D-shaped, double d-shaped, splined, etc.) so that rotation of theseat 103 in-turn rotates thehinge pin 106 through thepost 167. Also shown, thesecond portion 162 includes a shoulder 168, which can engage thebore 153 or a portion thereof (e.g., thepost 167 can engage an inner portion of thebore 153 having a complementary shape to the post, and the shoulder 168 can engage an outer portion of the bore 153). It is noted that the first andsecond portions - As shown in
FIGS. 5 and 6 , thedamper 107 includes atubular body 170 that is shown configured as a sleeve, which is rotatably mounted on theshaft 163 of thefirst portion 161 of thehinge pin 106. As shown inFIGS. 6 and 11 , thebody 170 surrounds a portion (e.g., of the shaft 163) of thehinge pin 106. Extending radially outward from thebody 170 is one ormore arms 171. As shown inFIG. 5 , afirst arm 171 extends radially outward from a first location on thebody 170 and asecond arm 171 extends radially outward from a second location on thebody 170. The twoarms 171 can extend radially outward from two opposite sides of thebody 170, so that the twoarms 171 are generally 180 degrees (180°) apart. Eacharm 171 is configured to be compressed by the clip 108 (e.g., a portion thereof) by a first amount (of compression) in a first relative position between theclip 108 and thedamper 107, and eacharm 171 is configured to be compressed by theclip 108 by a second amount (of compression), which is different than the first amount, in a second relative position between theclip 108 and thedamper 107. Also shown inFIG. 5 , eacharm 171 is substantially “T” shaped having aradial member 172, which extends radially from the sleeve, and atransverse member 173, which is disposed at an end (e.g., an outer end) of and extends transverse to theradial member 172. The outer surface of eachtransverse member 173 can be flat or can be semi-circular (e.g., having a diameter that nests with the inner diameter of the clip 108). It is noted that thedamper 107 can include onearm 171 or more than twoarms 171, and the number ofarms 171 as well as the configuration (e.g., size, shape, material, etc.) of each arm can be tailored to provide a desired/designed damping force and/or friction force based on the application of the damper assembly. Thedamper 107 can optionally, include ashoulder 174 on each end of thebody 170. As shown inFIG. 6 , eachshoulder 174 is annular in shape and located proximate to (e.g., abuts) one of the first andsecond shoulders hinge pin 106. - The
damper 107 is made from or includes a compliant (e.g., compressible, resilient, etc.) material that elastically deforms under the subjected load conditions (e.g., the damper compresses under compression loading from the clip) to aid in damping to prevent slamming of the seat/lid. According to at least one non-limiting example, thedamper 107 is made from a thermoplastic elastomer (TPE) that is over-molded onto thehinge pin 106, which is made from or includes a material that is more rigid than the damper, such that thedamper 107 seals without bonding to thehinge pin 106 to allow thedamper 107 to rotate relative to thehinge pin 106. However, according to other non-limiting examples, thedamper 107 can be made from or can include a thermoplastic polyurethane (TPE), such as a TPE/TPU resin; a thermoplastic vulcanizate (TPV), such as santoprene; any combination of these materials; or other suitable materials. For example, a damper (e.g., damper 107) including a TPV resin having between 70-90 durometer advantageously resisted bonding to a hinge pin (e.g., pin 106) including a polybutylene terephthalate (PBT) substrate resin and had a surface grip that was able to be tuned to release initially after molding and yet have enough “grip” (e.g., adhesion) while in rotation during use. Further, compression set (e.g., from the compression due to the clip) for TPV was improved over typical TPE. Generally, elastomers having relative low compression set and relative high tear resistance performance are believed to provide consistent frictional forces resulting in consistent torque resistance over time. It is noted that other materials and methods can be employed for the dampers, as the dampers of this application are not limited to the exemplary materials noted herein. For example, depending on the pins' (e.g., hinge pins) substrate material and the geometry/interference fit condition and the torque resistance required, the damper material could be other elastomer materials beyond those described herein. Even thermoset elastomers, such as silicon and neoprene, could provide alternate chemical resistances and resistance to wear performance to be applicable for use in the dampers of this application. -
FIG. 8 illustrates an exemplary embodiment of theclip 108 that includes a generally annular body 180 (e.g., a majority of the body is annular) having an outer diameter, which nests with the inner surface of thehinge base 150 that defines thebore 153, and an inner diameter, which is sized based on a radial length between the twotransverse members 173 of thedamper 107. As shown inFIG. 10 , the radial length can be less/shorter than the inner diameter so that thearms 171 of thedamper 107 do not contact the portions of thebody 180 having the inner diameter (i.e., there can be a gap between thearms 171 and thebody 180 at locations having the inner diameter). Theclip 108 includes one or more damping features that are configured to contact (e.g., and compress) thearms 171 of thedamper 107 during certain ranges of travel of thedamper 107 relative to thehinge pin 106 to provide damping/friction that resists rotation of thehinge pin 106 relative to thebody 151 of thehinge base 150. As shown inFIGS. 5 and 9 , theclip 108 includes two damping features located at two diametrically opposite locations of thebody 180, where each damping feature is configured as a ramped surface 181 (e.g., curved portion, arcuate portion, concave portion, etc.) that is inwardly curved and that extends radially inside of the inner surface (e.g., inner diameter) of thebody 180 and in a direction parallel to the longitudinal axis. Accordingly, theclip 108 includes two rampedsurfaces 181 extending inwardly of an inner surface of thebody 180 from two separate locations of thebody 180. As shown inFIGS. 9 and 12 , the rampedsurfaces 181 project radially inward far enough to create a predetermined interference fit with thearms 171 of thedamper 107, such that when thearms 171 are radially aligned with the rampedsurfaces 181, eacharm 171 is compressed by a predetermined amount (e.g., distance) to provide the desired damping/friction force(s). It is noted that theclip 108 can include a fewer number or a greater number of rampedsurfaces 181, which may be the same as or different from the number ofarms 171. As shown inFIG. 10 , theclip 108 includes aprojection 182 that extends both radially inward from the inner diameter of thebody 180 and along a length (in the longitudinal direction) of theclip 108 to limit the rotational travel of thedamper 107. Thus, theprojection 182 is a rotational stop. - Also shown in
FIG. 8 , theclip 108 can be configured as a snap-ring (e.g., C-clip, C-ring, etc.) having open ends (e.g., a longitudinal gap separating the two ends of the annular body 180) to allow theclip 108 to be compressed diametrically (e.g., from a squeezing action) to assemble theclip 108 into thebore 153. Theclip 108 includes one ormore tabs 184, where eachtab 184 extends both radially outward from the outer diameter of thebody 180 and along the length of theclip 108. As shown inFIGS. 8 and 9 , theclip 108 includes atab 184 proximate each of the two ends of thebody 180, as well as twotabs 184 diametrically opposite the opening between the two ends of thebody 180. Although, eachtab 184 is shown to have the same size (e.g., angular width), thetabs 184 can be configured having different sizes, such as to drive an alignment of theclip 108 relative to thebody 151 of thehinge base 150. Thetabs 184 also prevent rotation of theclip 108 relative to thehinge base 150. As shown best inFIGS. 9-12 , thehinge base 150 has a plurality ofchannels 154 aligned at different angular locations around the inner diameter, where eachchannel 154 receives onetab 184. Eachchannel 154 extends radially outward from thebore 153 into thebody 151 so that thechannel 154 has an outer diameter that is greater than the diameter of thebore 153. -
FIGS. 9-12 illustrate thehinge 105 in various positions of operation. As shown inFIG. 9 , thearms 171 of thedamper 107 are generally aligned with the rampedsurfaces 181 of theclip 108 in a closed position, which corresponds to a closed position of theseat 103. As shown inFIG. 10 , raising the seat 103 (relative to the toilet base 101) rotates thedamper 107 relative to theclip 108 in the clockwise direction until anarm 171 of thedamper 107 is stopped by theprojection 182 of theclip 108. This initiates frictional rotation between thedamper 107 and thehinge pin 106, and also places the anti-slam system into a “charged” state (i.e., being capable of preventing the seat from being slammed through damping/friction generated by the damper 107). As shown inFIG. 11 , lowering the seat 103 (relative to the toilet base 101) rotates thedamper 107 relative to theclip 108 in the counterclockwise direction. - During a first range of travel of the damper 107 (e.g., the
lower arm 171 moving from the stop position up to contact with a rampedsurface 181 of the clip 108) in the counterclockwise direction, the damper 107 (e.g., the arm 171) and theclip 108 can provide a first force (e.g., friction force, damping force, both), which can be zero for the arrangement of a gap between the end of thearm 171 and the inner diameter of thebody 180 or can be greater than zero for the arrangement having a predetermined interference fit between thearm 171 and thebody 180. - During a second range of travel of the damper 107 (e.g., after contact between an
arm 171 and a rampedsurface 181 of the clip 108), the damper 107 (e.g., the arm 171) and theclip 108 can provide a second force (e.g., friction force, damping force, both), which is greater than the first force. Thus, the interactions between thedamper 107 and theclip 108 and thedamper 107 and thehinge pin 106 can provide a first force that includes a damping force (e.g., compression force, spring force, etc.) and/or a friction force in response to a first level/amount of compression of thearms 171 by theclip 108 during the first range of travel. Again, the first force can be zero (i.e., for clearance, no compression) or greater than zero (i.e., first level of interference/compression). Similarly, these same interactions can provide a second force in response to a second level/amount of compression of thearms 171 by theclip 108, where the second force is greater than the first force. - The first range of travel of the damper 107 (e.g., with the
arms 171 out of contact with the ramped surfaces 181) can correspond to a first range of travel of theseat 103 from the open position toward the closed position, and the second range of travel of the damper 107 (e.g., with thearms 171 contacting with the ramped surfaces 181) can correspond to a second range of travel of theseat 103 from the first range of travel to the closed position. As shown inFIG. 12 , ramping of thearms 171 of thedamper 107 onto the rampedsurfaces 181 of theclip 108 increases the forces in a controlled manner between thedamper 107 and thehinge pin 106/clip 108 to provide repeatable anti-slam functionality of the seat assembly. -
FIGS. 13-16 illustrate an exemplary embodiment of atoilet seat hinge 205 that includes ahinge pin 206 disposed in thebore 153 of thebody 151 of thehinge base 150, adamper 207 disposed in thebore 153 and rotatably mounted on thehinge pin 206, and aclip 208 disposed in thebore 153 between thebody 151 and thedamper 207. Thehinge pin 206 rotatably couples a toilet seat/lid to a hinge base and is configured basically the same as thehinge pin 106 discussed above, unless noted otherwise. As shown inFIGS. 13 and 16 , thedamper 207 is configured similar to thedamper 107 discussed above, except thedamper 207 has a cross-sectional shape that is basically a four pointed star, with four fingers 271 (e.g., arms) extending away from acentral portion 272 that is rotatably coupled to a shaft of thehinge pin 206. As shown inFIGS. 13-15 , theclip 208 is configured similar to theclip 108 discussed above, except theclip 208 has twoprojections 281 extending inwardly from an inner diameter of thebody 280 that cooperate with thefingers 271 of thedamper 207 to provide damping/friction force(s), and theclip 208 includes aninner channel 282 in thebody 280. Thechannel 282 is shown inFIG. 13 as a concave recess that extends along the longitudinal length of theclip 208. Thechannel 282 is configured to receive an end of onefinger 271 when thefinger 271 is aligned with thechannel 282. It is noted that the reduction to two arms/ribs (e.g., thedamper 107 illustrated inFIGS. 5-12 ) lessened the material usage and cost compared to thedamper 207. Further, the dampers having a shoulder (e.g., shoulder 174) and a “T” shaped arm/rib (e.g.,arm 171 with aradial member 172 and a transverse member 173) had a greater effectiveness compared to the dampers without (e.g., the damper 207). -
FIG. 17 illustrates an exemplary embodiment of atoilet seat hinge 305 that includes ahinge pin 306 disposed in thebore 153 of thebody 151 of a hinge base, adamper 307 disposed in thebore 153 and rotatably mounted on thehinge pin 306, and aclip 308 disposed in thebore 153 between thebody 151 and thedamper 307. Thehinge pin 306 rotatably couples a toilet seat/lid to the hinge base, and thehinge pin 306 is configured basically the same as thehinge pin 106 discussed above, unless noted otherwise. As shown inFIG. 18 , thedamper 307 is configured basically the same as thedamper 107 discussed above, unless noted otherwise. Thedamper 307 includes twoarms 371 like that of thedamper 107. The end surface of eacharm 371 can be curved (e.g., semi-circular having an outer diameter) or can be wedge shaped (e.g., having inclined surfaces that meet at a surface or along a line, pointed). As shown inFIG. 19 , theclip 308 is configured similar to theclip 108 discussed above, except where noted otherwise. One difference is theclip 308 has two wedge shapedprojections 381 extending inwardly from an inner diameter of thebody 380 that cooperate with thearms 371 of thedamper 307 to provide a damping force and/or a friction force. Eachprojection 381 includes a flat inner portion and an inclined portion extending (at an oblique angle relative to the flat portion) from each end of the flat portion to thebody 380. Another difference is theclip 308 includes aninner channel 382 in thebody 380. Thechannel 382 is shown inFIG. 19 as a concave recess that extends along the longitudinal length of theclip 308. Thechannel 382 is configured to receive an end of anarm 371 when thearm 371 is aligned with thechannel 382. Thechannel 382 advantageously provides for easier assembly of theclip 308 by allowing the part to intentionally flex at the location of thechannel 382 similar to a living hinge design feature. Yet another difference is theclip 308 includes asingle tab 384 at the bottom of the body 380 (as shown inFIG. 19 ), where theclip 108 has two spaced aparttabs 184. Thetab 384 engages a mating channel in thebody 151 to couple theclip 308 to thebody 151 in thebore 153. -
FIGS. 20-25 illustrate an exemplary embodiment of atoilet seat hinge 405 that includes a relativelyrigid hinge pin 406 disposed in thebore 153 of thebody 151 of ahinge base 150, a relativelyresilient damper 407 disposed in thebore 153 and rotatably mounted on thehinge pin 406, and ahinge clip 408 disposed in thebore 153 between thebody 151 and thedamper 407. As shown best inFIG. 23 , thehinge pin 406 includes ashaft 463 that has an oval cross-sectional shape (e.g., as opposed to circular, annular, etc.), which advantageously provides a variable compression on thedamper 407, which in-turn provides a variable torque resistance (e.g., increase torque resistance). As shown inFIG. 21 , thedamper 407 can be formed over (e.g., overmolded onto) theoval shaft 463 such that thedamper 407 extends longitudinally beyond (e.g., past) one or more of the annular ribs (e.g., the firstannular shoulder 164, the second annular shoulder 165) to advantageously seal the hinge base (e.g., the chamber of the hinge base in which thedamper 407 is located within). This advantageously seals the chamber in which the compression and friction occur, thereby making the system more repeatable. Thearms 471 of thedamper 407 are shown inFIG. 21 extending between and contacting the insides of the annular ends 474, which are formed over the annular ribs, whereas thearms 471 of thedamper 407 are shown inFIG. 22 to extend between the annular ends 474 without contacting the insides. Thedamper 407 is configured to improve tear resistance and control the reaction forces (e.g., to the center axis of the hinge pin 406). - The
hinge clip 408 includes a C-shapedbody 480 having a substantially uniform inner diameter and outer diameter that is open at one end. Extending radially inward from two opposite sides of the inner diameter of thebody 480 are two generally rectangular shapedprojections 481, which are configured to limit angular rotation of thedamper 407 relative to thehinge clip 408. Extending radially inward from thebody 480 at a location between the twoprojections 481 is athird projection 482 that may cooperate with one or both of theprojections 481 to further limit relative angular rotation between thedamper 407 and thehinge clip 408. One ormore tabs 484 may extend radially outward from the outer diameter of thebody 480, such that eachtab 484 engages an associatedchannel 154 in thehinge base 150 to prevent relative rotation between thehinge clip 408 and thehinge base 150. - As shown in
FIG. 23 , after over-molding thedamper 407 onto thehinge pin 406, theoval shaft 463 of therigid hinge pin 406 is aligned to the overmold to create a non-uniform TPE material thickness. That is, creation of a non-uniform cross-sectional area of the arm(s) 471 of thedamper 407 via the oval shaped pin enables an increased quantity of material (e.g., elastomer, etc.) to be available and compressed when thepin 406 rotates independently of thedamper 407. An increased volume of eacharm 471 provides more damper material, which acts akin to a larger spring element providing additional variable torque resistance, and the oval geometry incrementally applies a greater quantity of radial compression due to the increased interference seen during relative rotation between the elements (e.g., thedamper 407 and thepin 406 and/or theclip 408. As shown inFIG. 24 , upon rotation of thehinge pin 406 while thedamper 407 is restrained by theprojections shaft 463 of thehinge pin 406 will rotate relative to and out of phase with the oval shape of thedamper 407 molded onto thehinge pin 406, which compresses the flexible damper 407 (e.g., thearms 471 thereof) in reshaping the opening of the damper to create a variable compression load while the friction between the elements generates a variable torsional resistance. This variable compression load and torsional resistance can be in addition to forces created between thehinge clip 408 and thedamper 407, such as or similar to those discussed above for the other embodiments. It is noted that additional forces (e.g., compression, friction) can be introduced into the damper/hinge systems of this application. By way of non-limiting example, thechannels 254 can be ramped to create a ramped engagement between thehinge clip 408 and thehinge base 250 that resist rotation of thehinge clip 408, such as by reducing/increasing (depending on the rotational direction) the diameter at the ends of thehinge clip 408 as thetabs 484 move along the ramp surfaces of thehinge base 250, as shown inFIG. 25 . The system can be configured so that the radial compression will be highest when a relatively large torque (e.g., during slamming of the seat) is applied, such as by having the greatest amount of interference between the elements. Also by way of non-limiting example, additional forces can be generated/introduced by changing further round surfaces (e.g., exterior surfaces of the damper, interior/exterior surfaces of the hinge clip, the interior surfaces of the hinge base, etc.). For example, a system can be configured so that when the seat is open, the ovals would align without interference (e.g., be in phase), and after rotating close, interference would be greatest when the ovals are perpendicular (e.g., about ninety degrees out of phase). By providing a damper having a material (e.g., TPE/TPU resin) that does not bond (e.g., chemically) to the hinge pin (e.g., its material), thehinge 405 provides improved toughness (tear resistance), waxiness (surface tension), and durometer while providing the desired torque resistance and the required interference tolerance requirements. -
FIGS. 26-30 illustrate an exemplary embodiment of atoilet seat hinge 505 that includes a spring element that provides counter torque and/or frictional resistance in addition to the force(s) from the damper. As shown inFIG. 26 , thehinge 505 includes a hinge base (e.g., the hinge base 150) with a bore (e.g., the bore 153) in each of two opposite sides, where each bore 153 receives a hinge pin assembly. Each hinge pin assembly includes a relativelyrigid hinge pin 506, a relativelyresilient damper 507 rotatably mounted on thehinge pin 506, and ahinge clip 508 disposed around part of thedamper 507 and received by thehinge base 150 in the associatedbore 153. Thedamper 507 and thehinge clip 508 are shown configured the same as thedamper 407 and thehinge clip 408, respectively described above, so no further description is provided here for thedamper 507 and thehinge clip 508. Although, it is noted that any damper and/or clip described herein can be utilized with the spring element shown inFIGS. 26-30 . - The
hinge pin 506 is basically the same as thehinge pin 406 described above, except that thehinge pin 506 further includes acam 565 disposed on the inner end (opposite the part that extends out from the hinge base). As shown inFIGS. 27-30 , thecam 565 includes a ramped surface 566 (e.g., a helical sweep ramp) that is configured to drive linear movement of a cam follower 590 (e.g., cam piston) upon rotation of thecam 565, which rotates with thehinge pin 506. Thecam follower 590 has alobe 591 shaped to nest with the ramped surface 566 (e.g., the shape of thelobe 591 can complement the shape of the ramped surface 566) so that thecam 565 andcam follower 590 are in a first relative position (e.g., open position, uncompressed position), as shown inFIG. 27 . Also shown inFIG. 27 , thehinge 505 further includes a spring 595 (shown as a helical compression/coil spring), which is wound around apost 593 of thecam follower 590, and astop 597, which can be coupled (e.g., fixedly coupled) to the hinge base and/or threaded to thehinge pin 506. - In general, the
cam follower 590 has a geometry that restricts or prevents rotation of thecam follower 590 relative to thestop 597 and thehinge pin 506. By way of example, thestop 597 can be configured to prevent relative rotation between thecam follower 590 and thestop 597, such as by having ashaft 597 b with a key-way 597 c (e.g., rib, one or more splines, etc.) that engages a channel (e.g., groove) in thepost 593 of thecam follower 590 as illustrated inFIG. 29 . Also, by way of example, thecam follower 590 can include arib 597 d (e.g., one or more splines, etc.) as illustrated inFIG. 27 that engages a channel in the hinge base (e.g., such as achannel 154, 254). These arrangements allow thecam follower 590 to move axially (e.g., longitudinally) toward and away from thestop 597 upon relative rotation between thehinge pin 506 and thecam follower 590. In this way, rotation of thehinge pin 506 rotates the cam 565 (and the ramped surface 566) relative to the cam follower 590 (and the lobe 591) so that thelobe 591 follows along the rampedsurface 566 moving the cam follower 590 (through the lobe 591) axially relative to thestop 597 and thedamper 507. When thecam follower 590 moves axially toward thestop 597, thespring 595 is wound and compressed increasing its loading (axial and torsional). In the closed position (e.g., compressed position) shown inFIG. 28 , thecam follower 590 is closest to thestop 597 and thespring 595 is at maximum compression. Rotation of thehinge pin 506 from the closed position toward the open position shown inFIG. 27 , which corresponds to thecam follower 590 being farthest from thestop 597 and thespring 595 at minimum compression, moves thecam follower 590 away from thestop 597 and unwinds thespring 595 to reduce the compression of (e.g., uncompresses, decompresses, etc.) thespring 595. The winding/compression and unwinding/decompression of thespring 595 creates counter torque (e.g., due to the cam surfaces), which can increase the total friction torque resistance in the system or allow a lower frictional torque resistance required from the internal damping geometries in the system without a reduction in the total friction torque resistance. - With reference back to
FIG. 26 , the base member 152 (e.g., a bottom hinge plate) and the hinge cover (e.g., the body 151) of thehinge base 150 contain one damper assembly within each of the twobores 153 therein. Each bore 153 can be defined by thebody 151 alone or in combination with thebase member 152. The size of each bore 153 can be made to accommodate different sized damper assemblies. Further, the stop locations in thehinge base 150 can be varied to accommodate damper assemblies having tailored sizes. Alternatively, the bottom hinge plate and/or the hinge cover can be designed with adjustable damper stop locations to allow the closure rate to be adjusted before/after assembly, such as by a homeowner and/or installer. Another variant or method to create counter torque and increased variable frictional torque resistance is for the cam to be part of the damper (e.g., integrally formed therewith, formed separately and coupled thereto). For example, the cam and damper can be overmolded onto the hinge pin to create new and variable frictional forces on the hinge pin's rib when the pin rotates and compresses the spring. - As utilized herein, the terms “approximately,” “about,” “substantially”, and similar terms are intended to have a broad meaning in harmony with the common and accepted usage by those of ordinary skill in the art to which the subject matter of this disclosure pertains. It should be understood by those of skill in the art who review this disclosure that these terms are intended to allow a description of certain features described and claimed without restricting the scope of these features to the precise numerical ranges provided. Accordingly, these terms should be interpreted as indicating that insubstantial or inconsequential modifications or alterations of the subject matter described and claimed are considered to be within the scope of the invention as recited in the appended claims.
- The terms “coupled,” “connected,” and the like, as used herein, mean the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.
- References herein to the positions of elements (e.g., “top,” “bottom,” “above,” “below,” etc.) are merely used to describe the orientation of various elements in the FIGURES. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and that such variations are intended to be encompassed by the present disclosure.
- The construction and arrangement of the elements of the toilet seat hinges as shown in the exemplary embodiments are illustrative only. Although only a few embodiments of the present disclosure have been described in detail, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied.
- Additionally, the word “exemplary” is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments or designs (and such term is not intended to connote that such embodiments are necessarily extraordinary or superlative examples). Rather, use of the word “exemplary” is intended to present concepts in a concrete manner. Accordingly, all such modifications are intended to be included within the scope of the present disclosure. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the preferred and other exemplary embodiments without departing from the scope of the appended claims.
- Other substitutions, modifications, changes and omissions may also be made in the design, operating conditions and arrangement of the various exemplary embodiments without departing from the scope of the present invention. For example, any element (e.g., hinge pin, damper, clip, etc.) disclosed in one embodiment may be incorporated or utilized with any other embodiment disclosed herein. Also, for example, the order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating configuration, and arrangement of the preferred and other exemplary embodiments without departing from the scope of the appended claims.
Claims (21)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US15/954,839 US10463209B1 (en) | 2018-04-17 | 2018-04-17 | Toilet seat hinge |
CN201910246523.7A CN110384433B (en) | 2018-04-17 | 2019-03-27 | Toilet seat hinge |
CN201920412318.9U CN211212874U (en) | 2018-04-17 | 2019-03-27 | Toilet seat hinge |
Applications Claiming Priority (1)
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US15/954,839 US10463209B1 (en) | 2018-04-17 | 2018-04-17 | Toilet seat hinge |
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US20190313863A1 true US20190313863A1 (en) | 2019-10-17 |
US10463209B1 US10463209B1 (en) | 2019-11-05 |
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US15/954,839 Active US10463209B1 (en) | 2018-04-17 | 2018-04-17 | Toilet seat hinge |
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US (1) | US10463209B1 (en) |
CN (2) | CN110384433B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD895086S1 (en) * | 2018-06-05 | 2020-09-01 | Coway Co., Ltd. | Bidet |
US11045054B2 (en) * | 2019-03-28 | 2021-06-29 | Beijing Xinsanying Technology and Trade Ltd. | Cover device, toilet cover assembly and toilet |
US20210291291A1 (en) * | 2020-03-20 | 2021-09-23 | Saint-Gobain Performance Plastics Corporation | Sterile sealing apparatus |
WO2022115060A1 (en) * | 2020-11-30 | 2022-06-02 | Iz Yapi Malzeme Ve Ekipmanlari Sanayi Ve Ticaret Anonim Sirketi | An easy detachable cover assembly improved to be used in a sanitary furniture item |
US11800958B2 (en) | 2021-02-24 | 2023-10-31 | Bemis Manufacturing Company | Toilet seat hinge |
US11845230B2 (en) | 2019-07-01 | 2023-12-19 | Saint-Gobain Performance Plastics Corporation | Profile connection |
US11878476B2 (en) | 2020-06-19 | 2024-01-23 | Saint-Gobain Performance Plastics Corporation | Composite article and method of forming a composite article |
US11877660B2 (en) * | 2020-04-17 | 2024-01-23 | Blue Cube (GB) Ltd. | Stadium seat |
USD1024752S1 (en) | 2022-01-07 | 2024-04-30 | Bemis Manufacturing Company | Toilet seat hinge |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10463209B1 (en) * | 2018-04-17 | 2019-11-05 | Kohler Co. | Toilet seat hinge |
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CN206151356U (en) * | 2016-06-06 | 2017-05-10 | 乐清市中兴阻尼电子有限公司 | Hinge slowly falls in toilet lid fast -assembling |
US10463209B1 (en) * | 2018-04-17 | 2019-11-05 | Kohler Co. | Toilet seat hinge |
-
2018
- 2018-04-17 US US15/954,839 patent/US10463209B1/en active Active
-
2019
- 2019-03-27 CN CN201910246523.7A patent/CN110384433B/en active Active
- 2019-03-27 CN CN201920412318.9U patent/CN211212874U/en not_active Withdrawn - After Issue
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD895086S1 (en) * | 2018-06-05 | 2020-09-01 | Coway Co., Ltd. | Bidet |
US11045054B2 (en) * | 2019-03-28 | 2021-06-29 | Beijing Xinsanying Technology and Trade Ltd. | Cover device, toilet cover assembly and toilet |
US11845230B2 (en) | 2019-07-01 | 2023-12-19 | Saint-Gobain Performance Plastics Corporation | Profile connection |
US11904552B2 (en) | 2019-07-01 | 2024-02-20 | Saint-Gobain Performance Plastics Corporation | Profile connection |
US20210291291A1 (en) * | 2020-03-20 | 2021-09-23 | Saint-Gobain Performance Plastics Corporation | Sterile sealing apparatus |
US11877660B2 (en) * | 2020-04-17 | 2024-01-23 | Blue Cube (GB) Ltd. | Stadium seat |
US11878476B2 (en) | 2020-06-19 | 2024-01-23 | Saint-Gobain Performance Plastics Corporation | Composite article and method of forming a composite article |
WO2022115060A1 (en) * | 2020-11-30 | 2022-06-02 | Iz Yapi Malzeme Ve Ekipmanlari Sanayi Ve Ticaret Anonim Sirketi | An easy detachable cover assembly improved to be used in a sanitary furniture item |
US11800958B2 (en) | 2021-02-24 | 2023-10-31 | Bemis Manufacturing Company | Toilet seat hinge |
USD1024752S1 (en) | 2022-01-07 | 2024-04-30 | Bemis Manufacturing Company | Toilet seat hinge |
Also Published As
Publication number | Publication date |
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US10463209B1 (en) | 2019-11-05 |
CN110384433B (en) | 2021-08-17 |
CN110384433A (en) | 2019-10-29 |
CN211212874U (en) | 2020-08-11 |
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