CN113905632A - Cosmetic instrument head locking mechanical system - Google Patents

Cosmetic instrument head locking mechanical system Download PDF

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Publication number
CN113905632A
CN113905632A CN201980097081.2A CN201980097081A CN113905632A CN 113905632 A CN113905632 A CN 113905632A CN 201980097081 A CN201980097081 A CN 201980097081A CN 113905632 A CN113905632 A CN 113905632A
Authority
CN
China
Prior art keywords
head
actuator
hand
lug
cosmetic tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201980097081.2A
Other languages
Chinese (zh)
Inventor
卢克·希勒布雷希特
杰西·托马斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Troy Helen Co ltd
Helen of Troy Ltd
Original Assignee
Troy Helen Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Troy Helen Co ltd filed Critical Troy Helen Co ltd
Publication of CN113905632A publication Critical patent/CN113905632A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • A45D20/122—Diffusers, e.g. for variable air flow
    • A45D20/124—Diffusers, e.g. for variable air flow comprising rotating elements
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
    • A45D1/04—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel by electricity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/18—Locking and securing devices comprising catches or pawls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7005—Lugged member, rotary engagement
    • Y10T403/7007—Bayonet joint

Abstract

A hand-held cosmetic tool includes a handle, a coupling on the handle, and a head connectable with the coupling. In an embodiment, the handheld cosmetic tool may include an actuator movable relative to the coupler. In another embodiment, the hand-held cosmetic tool may include a biasing member that cooperates with the coupler and the head. In embodiments including an actuator, a biasing member may or may not be included. Also, in embodiments that include a biasing member, an actuator may or may not be included.

Description

Cosmetic instrument head locking mechanical system
Background
In conventional hand-held hair styling tools, air is drawn into the tool through an inlet and directed toward the hair through an outlet by a fan connected to a motor. Such a hand-held cosmetic tool may be provided with different detachable heads, each having a different function. Depending on the desired hairstyle, different heads are selected.
The handle of the hand-held cosmetic tool is connected to each detachable head by a connection mechanism. A problem to be overcome is to provide a secure connection between the detachable head and the handle of the hand-held cosmetic tool to reduce the likelihood of the detachable head being accidentally removed from the handle.
Disclosure of Invention
In view of the above, a hand-held cosmetic tool includes a handle, a coupling (coupling) on the handle, and a head connectable to the coupling. In one embodiment, the hand-held cosmetic tool may include an actuator movable relative to the coupling. In another embodiment, the hand-held cosmetic tool may include a biasing member cooperating with the coupler and the head. In embodiments that include the actuator, the biasing member may or may not be included. Also, in embodiments that include the biasing member, the actuator may or may not be included.
In embodiments comprising the actuator, the head may be connected with the coupling via a bayonet connection, wherein the head is rotatable relative to the coupling about an axis of rotation towards a locked position. The actuator is movable relative to the link between an engaged position in which rotation of the head relative to the link from the locked position toward an unlocked position is inhibited, and a disengaged position in which movement of the head relative to the link from the locked position toward the unlocked position is not inhibited. The actuator is movable into an engaged position when the head is in the locked position.
In embodiments comprising the biasing member, the head is connectable with the link by a connection, wherein the head rotates about an axis of rotation and translates along the axis of rotation relative to the link toward a locked position. The biasing member cooperates with the link and head to bias the head away from the handle in a direction parallel to the axis of rotation when the head is in the locked position.
Drawings
Fig. 1 is a perspective view of a hand-held cosmetic tool with an actuator shown in an engaged position.
Fig. 2 is a perspective view of the hand-held cosmetic tool with the actuator shown in a disengaged position.
Fig. 3 is a cross-sectional view of a hand-held cosmetic tool.
Fig. 4 is an exploded view of the head, coupling and biasing member assembly of the hand-held cosmetic tool.
Fig. 5 is another exploded view of the head, coupling and biasing member assembly of the hand-held cosmetic tool.
Fig. 6 is a sectional view showing the connection between the head and the coupling.
Fig. 7 is a perspective sectional view showing the connection between the head and the coupling.
Fig. 8 is a side view of a head of a hand-held cosmetic tool.
FIG. 9 is an exploded perspective view of the head, coupling, biasing member assembly and actuator.
FIG. 10 is an exploded perspective view of the head, coupling, biasing member assembly and actuator.
Detailed Description
The description and drawings herein are merely illustrative, and various modifications and changes may be made to the structures disclosed without departing from the present invention. Further, spatially relative terms describing the relationship between features of the handheld beauty tool 20 relate to the handheld beauty tool 20 as oriented in the relative figures. Any degree of terminology used herein, such as "parallel," "perpendicular" (vertical), and "perpendicular" (normal) is intended to represent a reasonable amount of deviation such that the end result is not significantly changed. "movement" of one element relative to another means that the first-mentioned element can move in space while the second-mentioned element remains stationary, or the second-mentioned element can move in space while the first-mentioned element remains stationary, or both elements can move simultaneously. Referring to fig. 1, a hand-held cosmetic tool 20 includes a handle 22, a coupling 24 on the handle 22, and a head 26 connectable with the coupling 24. In the embodiment shown in fig. 1 and 2, the handheld cosmetic tool 20 further includes an actuator 28 that is movable between an engaged position (shown in fig. 1) and a disengaged position (shown in fig. 2) relative to the handle 22 and the coupling 24.
To allow the user to create different hairstyles and to provide versatility to the hand-held cosmetic tool 20, the head 26 is removable to allow replacement with another removable head (not shown), for example comprising bristles or having a different shape than the head 26 shown in fig. 1 and 2. In addition, the head 26 may be removable to allow easier storage of the hand-held cosmetic tool 20. The handheld cosmetic tool 20 is configured to be grasped by a user at the handle 22 and includes an air inlet 30 through which air enters the handheld cosmetic tool 20 and flows through the handle 22, the coupling 24, and the head 26 to an air outlet 32. Referring to fig. 3, a fan 34 driven by a motor 36 draws air through the air inlet 30 and pushes the air through the heating element 38 toward the air outlet 32. The hand-held cosmetic tool 20 may be connected to a power source via a power cable 42, or a battery may be housed within the handle 22. The hand-held cosmetic tool 20 may also include a user interface, which may include an on-off button (not shown) and a temperature controller (not shown), and controls similar to known hair drying devices.
Referring back to fig. 1, the handle 22 includes a first (top) housing 50 connected with a second (bottom) housing 52 to define a hollow handle interior compartment 54 (fig. 3) in which the fan 34, motor 36, and heating element 38 are housed. In the illustrated embodiment, the second housing 52 includes an actuator opening 56. The actuator opening 56 is elongated along a longitudinal axis 58 of the hand-held cosmetic tool 20. In the illustrated embodiment, the linkage 24 is connected to the handle 22; however, in an alternative arrangement, the handle 22 and the link 24 may be integrally formed.
Referring to fig. 4 and 5, the coupling 24 includes an outer wall 70 that, in the illustrated embodiment, is annular and concentric with the longitudinal axis 58. The outer wall 70 includes a proximal end 72 and a distal end 74 relative to the handle 22. The coupling element 24 also includes detents 76 (extensions) extending inwardly from the outer wall 70, the detents 76 being located closer to the proximal end 72 than the distal end 74. The detent 76 facilitates the coupling 24 being connected to the handle 22 by a press fit, the coupling 24 being pressed onto the handle 22. In the illustrated embodiment, the two pawls 76 are disposed at an angular spacing 180 degrees from each other relative to the longitudinal axis 58. The coupling 24 further includes a seat 78 extending inwardly from the outer wall 70. The abutments 78 are circumferentially spaced apart to provide a frame channel 82 and an actuator channel 84, each extending in an axial direction substantially parallel to the longitudinal axis 58. The coupling 24 further includes a component support 86 defining a corresponding component support surface 88. Each assembly support surface 88 is perpendicular to the longitudinal axis 58.
The coupling 24 further includes a lug 100 positioned near the distal end 74 and extending inwardly from the outer wall 70. In the illustrated embodiment, two lugs 100 are provided that are angularly spaced 180 degrees apart from one another relative to the longitudinal axis 58. Referring to fig. 6, each lug 100 includes a proximal lug surface 102 and a distal lug surface 104 relative to the handle 22. As shown in fig. 6, the proximal lug surface 102 is offset at an angle a relative to a plane perpendicular to the (normal to) longitudinal axis 58. However, the distal lug surface 104 is parallel to a plane perpendicular to the (normal to) longitudinal axis 58. The lugs 100 cooperate with the head 26 to allow for removable connection of the head 26 to the coupling 24. Referring to fig. 7, the coupling 24 also includes a barbed grip 106 in the form of a shoulder positioned below the lug 100.
The head 26 is configured to be selectively connectable with the link 24 so as to allow the head 26 to be selectively disconnected from the handle 22 and the link 24. This also allows for the replacement of another type of head having a similar connection to the coupling 24. The head 26 includes an outer surface 130 and an inner surface 132. The head 26 is hollow to allow air to flow through the head inlet 134 towards the air outlet 32. The head inlet 134 is disposed at a proximal edge 136 of the head 26.
The head 26 is connectable with the link 24 via a connection wherein the head 26 rotates about an axis of rotation and translates along the axis of rotation relative to the link 24 toward a locked position, in the illustrated embodiment, the axis of rotation is collinear with the longitudinal axis 58. In the illustrated embodiment, the connection between the head 26 and the coupler 24 is a bayonet connection; however, other rotatable connections are also conceivable. In the illustrated embodiment, the connection between the coupler 24 and the head 26 is provided by a lug 100 disposed on the coupler 24 and a lug recess 140 disposed on the head 26; alternatively, however, the lugs may be provided on the head and the lug recesses may be provided on the coupling.
Referring back to the illustrated embodiment, the head 26 includes two lug recesses 140 that are generally L-shaped to provide a bayonet connection. Referring to fig. 8, each lug recess 140 is provided in the outer surface 130. Each lug recess 140 includes an axial (vertical) section 142 and a transverse (horizontal) section 144 extending from the proximal edge 136 of the head 26. Referring specifically to fig. 8, the cross-section 144 of the lug recess 140 includes a proximal lug recess surface 146 and a distal lug recess surface 148, the proximal lug recess surface 146 being spaced closer to the proximal edge 136, the distal lug recess surface 148 being spaced distally from the proximal lug recess surface 146 to accommodate the axial dimension of the lug 100 (see fig. 6). The proximal lug recess surface 146 is angled relative to a plane perpendicular (normal to) to the rotational axis of the head 26 coaxial with the longitudinal axis 58 such that the proximal lug surface 102 of the lug 100 cooperates with the proximal lug recess surface 146 to move the head 26 toward the handle 22 as the head 26 is rotated about the rotational axis toward the locked position relative to the coupling 24, as shown in fig. 6. As shown in fig. 8, the proximal lug recess surface 146 is offset at an angle a (see also fig. 6) relative to a plane perpendicular to the (normal to) longitudinal axis 58. As such, when the lug 100 is inserted into the axial section 142, it moves in the axial direction until it contacts the distal lug recess surface 148. The head 26 is then rotated relative to the link 24 such that the lug 100 moves laterally in the transverse section 144 until it contacts the first end 152 of the transverse section 144, at which time the head 26 is in the locked position. To remove the head 26 from the coupling 24, the head 26 is then rotated relative to the coupling 24 such that the lug 100 moves laterally in the transverse section 144 until it contacts the second end 154 of the transverse section 144, at which time the head 26 is in an unlocked position with the lug 100 aligned with the axial section 142. When the lug 100 is aligned with the axial section 142 of the lug recess 140, the head 26 may be pulled in an axial direction parallel to the longitudinal axis 58. Due to the angle α, when the lug 100 moves laterally in the transverse section 144 toward the first end 152 of the transverse section 144, the head 26 translates along the axis of rotation (which coincides with the longitudinal axis 58), thereby pulling the head 26 toward the link 24 and the handle 22.
Referring to fig. 7 and 9, the head 26 further includes an actuator tooth recess 160 provided at the proximal edge 136 and extending outwardly from the inner surface 132. The head 26 may include two actuator tooth recesses 160, each diametrically opposed to the other. Each actuator tooth recess 160 may also be angularly offset from the respective lug recess 140 by 90 degrees relative to the longitudinal axis 58. The head 26 may also include an actuator notch 162(notch) extending in a distal direction from the proximal edge 136. Head 26 may include two actuator notches 162, each actuator notch 162 being radially aligned with a respective actuator tooth recess 160. Each actuator notch 162 may extend outward to the outer surface 130 of the head 26.
Referring to fig. 9 and 10, the hand-held cosmetic tool 20 further includes an actuator 28 that is movable relative to the coupling member 24 between an engaged position in which rotation of the head 26 relative to the coupling member 24 from the locked position toward the unlocked position is inhibited, and a disengaged position in which movement of the head 26 relative to the coupling member 24 from the locked position toward the unlocked position is not inhibited. The actuator 28 generally includes a base 180, the base 180 being elongated in an axial direction parallel to the longitudinal axis 58. The base 180 includes a base proximal end 182 and a base distal end 184. A spring receiving recess 186 (shown in phantom in fig. 7) extends from the base proximal end 182 into the base 180. The actuator 28 further includes an elongated flange 188 that is elongated in an axial direction parallel to the longitudinal axis 58 extending from each side of the base 180. The actuator 28 also includes teeth 200 extending in a distal direction from the base distal end 184. The teeth 200 are configured to be selectively received in the actuator tooth recesses 160 of the head 26. The actuator 28 further includes a protrusion 202 that is elongated and extends in an outward vertical (perpendicular) direction from both the tooth 200 and the base 180. The protrusion 202 is configured to be received in an actuator recess 162 provided in the head 26 when the actuator 28 is in the engaged position. The actuator 28 further includes a button 204 extending in the same direction from the base 180 and axially spaced from the protrusion 202.
Referring to fig. 7, a spring 210 having two terminal ends 212 biases the actuator 28 in an axial direction parallel to the longitudinal axis 58 toward the head 26. Each terminal end 212 of the spring 210 is received in a respective spring receiving recess 186. The spring 210 shown in FIG. 7 is a wire spring; however, other biasing mechanisms for biasing the actuator 28 toward the head 26 may be provided. Referring back to fig. 1 and 2, the button 204 extends through the actuator opening 56 provided in the handle 22 to provide operator access to the button 204. The button 204 has a relatively small axial dimension (relative to the longitudinal axis 58) to allow an operator to move the actuator 28 toward the disengaged position (shown in fig. 2) against the biasing force of the spring 210. When a user removes force from the button 204 with the actuator 28 in the disengaged position, the spring 210 biases the actuator 28 such that it moves in a direction parallel to the longitudinal axis 58 toward the head 26 to allow the actuator 28 to move to the engaged position in which the teeth 200 are received in the actuator tooth recesses 160 and the protrusions 202 are received in the actuator notches 162. As such, with the actuator 28 in the engaged position, the head 26 is in the locked position such that rotation of the head 26 relative to the link 24 from the locked position toward the unlocked position is inhibited by the actuator, and more specifically, the teeth 200 are received in the actuator tooth recesses 160 and the protrusions 202 are received in the actuator notches 162. This inhibits unintended rotational movement of the head 26 relative to the handle 22.
To attach the head 26 to the coupling 24, each lug 100 is aligned with an axial section 142 of the corresponding lug recess 140. The head 26 is then moved in an axial direction towards the handle 22. At this stage, the actuator tooth recess 160 is not aligned with the tooth 200 and prevents the actuator 28 from moving into an engaged position with the head 26 in the unlocked position. At this stage, the proximal edge 136 of the head 26 contacts the teeth 200, which causes the actuator 28 to move in an axial direction toward the handle 22. Next, the head 26 is rotated relative to the coupling 24 until the lug 100 contacts the first end 152 of the transverse segment 144. At this stage, the actuator tooth recess 160 is aligned with the tooth 200, and the spring 210 biases the actuator 28 in the axial direction toward the head 26 such that the tooth 200 is received in the actuator tooth recess 160. To detach the head 26 from the coupling 24, the operator pulls the button 204 to move the button to the disengaged position shown in fig. 2. The head 26 may now be rotated relative to the link 24 to align the lugs 100 with the axial segments 142 of each lug recess 140, and then the head 26 may be pulled away from the handle in a direction parallel to the longitudinal axis 58. When the actuator 28 moves in the axial direction, the protrusion 202 moves within the actuator channel 84.
To provide a secure connection between the handle 22 and the head 26, which is removable from the handle 22, a biasing member may be provided in addition to or in place of the actuator 28, which is part of an assembly 250 (see fig. 3 and 4) in the illustrated embodiment. When the head 26 is in the locked position, the biasing member biases the head 26 away from the handle 22 in a direction parallel to an axis of rotation of the head 26, which in the illustrated embodiment is coaxial with the longitudinal axis 58. As such, the actuator 28 or the biasing member described above, or both, may be provided as part of the connection between the head 26 and the coupling 24.
In the illustrated embodiment, the assembly 250 includes a frame 252 and a resilient material 254 connected to the frame 252, the resilient material being made of a more resilient material than the frame 252. The resilient material 254 may be silicone or a similar rubber-like material and may operate as both a biasing member and a gasket (gasket) to inhibit air flow leakage through the coupling 24 and head 26. The assembly 250 including the frame 252 and the resilient material 254 is nearly annular (or substantially C-shaped) and concentric with the longitudinal axis 58 to define a gap 256 between opposing circumferential ends 258 of the assembly 250. In embodiments that do not include an actuator, the assembly 250 may be annular. The frame 252 further includes positioning prongs 270(prongs) that are received in the frame channel 82 of the link 24. The frame 252 also includes barbs 274, the barbs 274 cooperating with the barbed grip 106 on the coupling 24 to connect the assembly 250 with the coupling 24. The assembly 250 is supported on the assembly support surface 88 of each assembly support 86. Actuator 28, and more specifically teeth 200 of actuator 28, may move in a linear direction parallel to longitudinal axis 58 through a gap 256 provided in assembly 250, which can be seen in fig. 7. The resilient material 254 of the assembly 250 presses the head 26 in a distal direction in a direction parallel to the longitudinal axis 58 to urge the distal lug surface 104 of each lug 100 toward the distal lug recess surface 148 in the cross-section 144 of each lug recess 140, which also provides a more secure connection between the head 26 and the link 24 and the handle 22. Thus, the resilient material 254 may act as a biasing member to bias the head 26 away from the handle 22 in a direction parallel to the axis of rotation when the head 26 is in the locked position so as to inhibit rotational movement of the head 26 relative to the link 24 from the locked position toward the unlocked position.
The hand-held cosmetic tool has been described in detail above. Modifications and alterations will occur to others upon reading and understanding the preceding detailed description. However, the present invention is not limited to the above-described embodiments. Rather, the invention is broadly defined by the appended claims and equivalents thereof.

Claims (20)

1. A hand-held cosmetic tool comprising:
a handle;
a coupling on the handle;
a head connectable with the coupling via a bayonet connection, wherein the head is rotatable relative to the coupling about an axis of rotation towards a locked position; and
an actuator movable relative to the link between an engaged position in which rotation of the head relative to the link from the locked position toward an unlocked position is inhibited, and a disengaged position in which movement of the head relative to the link from the locked position toward the unlocked position is not inhibited, the actuator being movable to the engaged position when the head is in the locked position.
2. The hand-held cosmetic tool of claim 1, wherein the bayonet connection comprises a lug receivable in a lug recess and, when in the engaged position, the actuator engages the head angularly offset from the lug with respect to the axis of rotation.
3. The hand-held cosmetic tool of claim 2, wherein the lug is disposed on the coupling and the lug recess is disposed on the head.
4. The hand-held cosmetic tool of claim 2 or 3, wherein the lug comprises a proximal lug surface relative to the handle and the lug recess is defined at least in part by proximal lug recess surfaces each oriented transverse to the rotational axis, wherein the proximal lug surface cooperates with the proximal lug recess surface to move the head toward the handle when the head is rotated relative to the coupling about the rotational axis toward the locked position.
5. The hand-held cosmetic tool of claim 1 or 2, further comprising a biasing member cooperating with the coupling and the head to bias the head away from the handle in a direction parallel to the axis of rotation when the head is in the locked position.
6. The hand-held cosmetic tool of claim 5, further comprising an assembly comprising the biasing member and a frame, the biasing member attached to the frame.
7. The hand-held cosmetic tool of claim 6, wherein the assembly is approximately annular in shape and concentric with the axis of rotation so as to define a gap between opposing circumferential ends of the assembly.
8. The hand-held cosmetic tool of claim 7, wherein at least a portion of the actuator is movable through the gap in a linear direction parallel to the axis of rotation.
9. The hand-held cosmetic tool of claim 1 or 2, wherein the actuator comprises a tooth and the head comprises a tooth recess, wherein the tooth is received in the tooth recess when the actuator is in the engaged position.
10. The hand-held cosmetic tool of claim 9 wherein the actuator comprises a base and a protrusion, the tooth extends from the base towards the head, and the protrusion extends outwardly in a perpendicular direction from the tooth and/or the base, and the head comprises a recess that receives the protrusion when the actuator is in the engaged position.
11. A hand-held cosmetic tool comprising:
a handle;
a coupling on the handle;
a head connectable with the coupling via a connection, wherein the head rotates relative to the coupling about an axis of rotation and translates along the axis of rotation toward a locked position; and
a biasing member cooperating with the link and the head to bias the head away from the handle in a direction parallel to the axis of rotation when the head is in the locked position.
12. The hand-held cosmetic tool of claim 11, further comprising an assembly comprising the biasing member and a frame, the biasing member attached to the frame.
13. The hand-held cosmetic tool of claim 12, wherein the assembly is approximately annular in shape and concentric with the axis of rotation so as to define a gap between opposing circumferential ends of the assembly.
14. The hand-held cosmetic tool of claim 13, further comprising an actuator movable in a linear direction parallel to the axis of rotation, and at least a portion of the actuator is movable through the gap in a linear direction parallel to the axis of rotation.
15. The hand-held cosmetic tool of claim 14, wherein the actuator includes a tooth and the head includes a tooth recess, wherein the tooth is received in the tooth recess when the actuator is in an engaged position in which rotation of the head relative to the coupling from the locked position toward an unlocked position is inhibited.
16. The hand-held cosmetic tool of claim 15 wherein the actuator comprises a base and a protrusion, the tooth extends from the base towards the head, and the protrusion extends in a perpendicular direction from the tooth and/or the base, and the head comprises a recess that receives the protrusion when the actuator is in the engaged position.
17. The hand-held cosmetic tool of claim 11, further comprising an actuator movable in a linear direction parallel to the axis of rotation, wherein the actuator is prevented from moving to an engaged position in which rotation of the head relative to the coupling from the locked position toward an unlocked position is inhibited when the head is in the unlocked position.
18. The hand-held cosmetic tool of claim 16 or 17, further comprising a spring biasing the actuator toward the engaged position.
19. The hand-held cosmetic tool of claim 11, wherein the connection is a bayonet connection comprising a lug receivable in a lug recess.
20. The hand-held cosmetic tool of claim 19, wherein the lug comprises a proximal lug surface relative to the handle and the lug recess is defined at least in part by proximal lug recess surfaces each oriented transverse to the rotational axis, wherein the proximal lug surface cooperates with the proximal lug recess surface to move the head toward the handle when the head is rotated relative to the coupling about the rotational axis toward the locked position.
CN201980097081.2A 2019-06-24 2019-07-24 Cosmetic instrument head locking mechanical system Pending CN113905632A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/449,504 US20200397113A1 (en) 2019-06-24 2019-06-24 Beauty tool head locking mechanism
US16/449,504 2019-06-24
PCT/US2019/043153 WO2020263286A1 (en) 2019-06-24 2019-07-24 Beauty tool head locking mechanism

Publications (1)

Publication Number Publication Date
CN113905632A true CN113905632A (en) 2022-01-07

Family

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Application Number Title Priority Date Filing Date
CN201980097081.2A Pending CN113905632A (en) 2019-06-24 2019-07-24 Cosmetic instrument head locking mechanical system

Country Status (4)

Country Link
US (1) US20200397113A1 (en)
EP (1) EP3986201A4 (en)
CN (1) CN113905632A (en)
WO (1) WO2020263286A1 (en)

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US20200397113A1 (en) 2020-12-24
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