U.S. patent application number 13/604793 was filed with the patent office on 2014-03-06 for detachable adjustable mouth mask.
The applicant listed for this patent is CHANG-HUNG LAI. Invention is credited to CHANG-HUNG LAI.
Application Number | 20140060550 13/604793 |
Document ID | / |
Family ID | 50185710 |
Filed Date | 2014-03-06 |
United States Patent
Application |
20140060550 |
Kind Code |
A1 |
LAI; CHANG-HUNG |
March 6, 2014 |
DETACHABLE ADJUSTABLE MOUTH MASK
Abstract
A detachable adjustable mouth mask includes a base frame member,
a shade fastened to the base frame member to provide a curved,
surface for covering over the user's mouth and nose, a chin support
connector providing a clamping groove and friction ribs for
fastening to the base frame member and lugs with radial teeth, a
chin support providing connection members pivotally coupled to the
lugs of the chin support connector with radial teeth thereof
angularly adjustably engaged with the radial teeth of the chin
support connector and a spacer block providing a ventilation
passage for exhaust of exhaled air, and a pair of ear loops for
securing the chin support to the user's ears.
Inventors: |
LAI; CHANG-HUNG; (TAIPEI
CITY, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
LAI; CHANG-HUNG |
TAIPEI CITY |
|
TW |
|
|
Family ID: |
50185710 |
Appl. No.: |
13/604793 |
Filed: |
September 6, 2012 |
Current U.S.
Class: |
128/863 |
Current CPC
Class: |
A41D 13/1161 20130101;
A41D 13/1184 20130101 |
Class at
Publication: |
128/863 |
International
Class: |
A41D 13/11 20060101
A41D013/11 |
Claims
1. A detachable adjustable mouth mask, comprising a base frame
member, a shade, a chin support, a chin support connector, and a
pair of ear loops, wherein said base frame member is configured to
fit the curvature of a human face; said shade comprises a bottom
side fastened to said base frame member such that said shade
defines with said base frame member a curved surface; said chin
support connector is detachably fastened to a middle part of said
base frame member, comprising a clamping groove for securing said
base frame member, a plurality of friction ribs disposed in said
clamping groove for friction engagement. with said base frame
member, and at least one connection member; said chin support
comprises at least one connection member respectively and angularly
adjustably connected to the at least one connection member of said
chin support connector, and two extension arms respectively
extended from two opposite lateral sides thereof; said ear loops
are respectively connected to said extension arms of said chin
support for hanging on the ears of a person.
2. The detachable adjustable mouth mask as claimed in claim 1,
wherein each connection member of said chin support connector
comprises a lug, and a pivot hole located on said lug; each
connection member of said chin support comprises a pivot pin
pivotally coupled to the pivot hole of one respective connection
member of said chin support connector.
3. The detachable adjustable mouth mask as claimed in claim 1,
wherein each connection member of said chin support connector
comprises a round head stud having a round head; each connection
member of said chin support comprises a ball socket pivotally
coupled to the round head of the round head stud of one respective
connection member of said chin support connector, and a plurality
of slits located on said ball socket.
4. The detachable adjustable mouth mask as claimed in claim 1,
wherein said base frame member comprises a thin wall portion
located on a middle part thereof and inserted into said clamping
groove of said chin support connector in friction engagement with
said friction ribs.
5. The detachable adjustable mouth mask as claimed in claim 1,
wherein said chin support comprises a spacer block located on an
inner side thereof for direct contact with the user's chin to keep
said shade away from the user's mouth and nose at a distance, said
spacer block defining with said chin support connector and said
base frame member a ventilation passage for exhaust of exhaled
air.
6. The detachable adjustable mouth mask as claimed in claim 1,
wherein said chin support comprises a spacer block located on an
inner side thereof for direct contact with the user's chin to keep
said shade away from the user's mouth and nose at a distance, said
spacer block defining with said chin support connector and said
base frame member a ventilation passage for exhaust of exhaled
air.
7. The detachable adjustable mouth mask as claimed in claim 2,
wherein each connection member of said chin support connector
further comprises a plurality of teeth radially located on one side
of the lug thereof around the associating pivot hole; each
connection member of said chin support further comprises a
plurality of teeth radially located on one side around the pivot
pin thereof for engagement with the teeth of the respective
connection member of said chin support connector in a detachable
manner.
8. A detachable adjustable mouth mask, comprising a base frame
member, a shade, a chin support, and a pair of ear loops wherein
said base frame member is configured to fit the curvature of a
human face, comprising a plurality of lugs extended from an inner
side thereof and a pivot hole located on each said lug; said shade
comprises a bottom side fastened to said base frame member such
that said shade defines with said base frame member a curved
surface; said chin support comprises a plurality of connection
members, each said connection member comprising a pivot pin
pivotally coupled to the pivot hole on one lug or said base frame
member, and two extension arms respectively extended from two
opposite lateral sides thereof; said ear loops are respectively
connected to said extension arms of said chin support for hanging
on the ears of a person.
9. The detachable adjustable mouth mask as claimed in claim 8,
wherein each said lug of said base frame member comprises a
plurality of teeth radially located on one side thereof around the
associating pivot hole; each connection member of said chin support
further comprises a plurality of teeth radially located on one side
around the pivot pin thereof for engagement with the teeth of the
respective lug of said base frame member in a detachable
manner.
10. The detachable adjustable mouth mask as claimed in claim 8,
wherein said chin support comprises a spacer block located on an
inner side thereof for direct contact with the user's chin to keep
said shade away from the user's mouth and nose at a distance, said
spacer block defining with said base frame member a ventilation
passage for exhaust of exhaled air.
11. A detachable adjustable mouth mask, comprising a base frame
member, a shade, a chin support, and a pair of ear loops, wherein
said base frame member is configured to fit the curvature of a
human face, comprising two clamping plates extended from two distal
ends of an inner side thereof and a plurality of plug rods extended
from the inner side and spaced between said two clamping plates,
each said clamping plate comprising a clamping groove and a
plurality of friction ribs disposed in said clamping groove; said
shade comprises two end protrusions respectively extended from two
distal ends of a bottom side thereof and respectively inserted into
the clamping grooves of said clamping plates of said base frame
member in friction engagement with the friction ribs in said
clamping grooves; said chin support comprises a plurality of
connection members, each said connection member comprising a plug
hole coupled to one respective plug rod of said base frame member,
a plurality of friction ribs disposed in said plug hole for
friction engagement with the inserted plug rod of said base frame
member, and two extension arms respectively extended from two
opposite lateral sides thereof; said ear loops are respectively
connected to said extension arms of said chin support for hanging
on the ears of a person.
12. The detachable adjustable mouth mask as claimed in claim 11,
wherein said shade comprises a plurality of through holes disposed
near the bottom side thereof and respectively coupled to the plug
rods of said base frame member.
13. The detachable adjustable mouth mask as claimed in claim 11,
wherein said shade comprises a plurality of bottom notches located
on the bottom side thereof and respectively attached to the plug
rods of said base frame member.
14. The detachable adjustable mouth mask as claimed in claim 11,
wherein said shade is selectively bonded to said base frame member
using an adhesive or high-frequency sealing technology.
15. The detachable adjustable mouth mask as claimed in claim 11,
wherein said base frame member further comprises a supplementary
clamping plate extended from the inner side thereof on the middle,
said supplementary clamping plate comprising a clamping groove for
receiving the bottom side of said shade and a plurality of friction
ribs disposed in the clamping groove for friction engagement with
the inserted bottom side of said shade.
16. A detachable adjustable mouth mask, comprising a base frame
member configured to fit the curvature of a human face, a shade, a
chin support and a pair of ear loops, said base frame member
comprising a plurality of lugs extended from an inner side thereof,
said chin support comprising a plurality of connection members
respectively pivotally coupled to the lugs of said base frame
member, said ear loops being respectively connected to said chin
support for hanging on the ears of a person, wherein said base
frame comprises two clamping plates respectively from two distal
ends of an inner side thereof, each said clamping plate comprising
a clamping groove and a plurality of friction ribs disposed in said
clamping groove, said shade comprises a plurality of coupling holes
located on a bottom side thereof and respectively coupled to the
lugs of said base frame member and two end protrusions respectively
extended from two distal ends of the bottom side and respectively
inserted into the clamping grooves of said clamping plates of said
base frame member in friction engagement with the friction ribs in
said clamping grooves, each said coupling hole comprising a narrow
bottom entrance elastically expandable for allowing the respective
lug of said base frame member to be engaged into the respective
said coupling hole.
17. The detachable adjustable mouth mask as claimed in claim 16,
wherein each said connection member of said chin support comprises
a pivot pin pivotally coupled to one respective said lug of said
base frame member; each said lug of said base frame member
comprises a pivot hole pivotally coupled to the pivot pin of the
respective connection member of said chin support, a neck connected
to the inner side of said base frame member, and a collar extending
around the periphery of the neck thereof for supporting the bottom
side of said shade on the inner side of said base frame member, the
distance between said collar and the inner side of said base frame
member being equal to the thickness of the bottom side of said
shade.
18. The detachable adjustable mouth mask as claimed in claim 16,
wherein said chin support comprises two extension arms respectively
extended from two opposite lateral sides thereof; said ear loops
are respectively connected to said two extension arms of said chin
support.
19. The detachable adjustable mouth mask as claimed in claim 17,
wherein each said lug of said base frame member further comprises a
plurality of teeth radially disposed at one side around the pivot
hole thereof; each said connection member of said chin support
comprises a plurality of teeth radially disposed at one side around
the pivot pin thereof for engagement with the teeth of the
respective lug of said base frame member.
20. The detachable adjustable mouth mask as claimed in claim 17,
wherein said base frame member further comprises a supplementary
clamping plate extended from the inner side thereof on the middle
between said lugs said supplementary clamping plate comprising a
clamping groove for receiving the bottom side of said shade and a
plurality of friction ribs disposed in the clamping groove for
friction engagement with the inserted bottom side of said
shade.
21. The detachable adjustable mouth mask as claimed in claim 17,
wherein each said lug of said base frame member is made in the form
of a round head stud, said round head stud comprising a round head
and a neck connected between said round head and the inner side of
said base frame member; said chin support comprises a plurality of
connection members and two extension arms respectively extended
from two opposite lateral sides thereof, each said connection
member comprising a ball socket pivotally coupled to the round head
of one respective round head stud of said base frame member to stop
the bottom side of said shade against the inner side of said base
frame member and a plurality of slits located on said ball socket;
said two ear loops are respectively connected to said extension
arms of said chin support for hanging on the ears of a person.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a mask means for covering
over the mouth and nose of a person to prevent spit flying and more
particularly, to a detachable adjustable mouth mask, which allows
adjustment of the elevation and tilting angle of the chin support
and quick replacement of the shade.
[0003] 2. Description of the Related Art
[0004] Many detachable adjustable mouth masks are commercially
available for wearing by a person to prevent spit flying. According
to conventional designs, the shade and chin support are arranged on
one same axis. However, as the chin shape and length and the
distance between the chin and the nose vary widely between people,
the shade may be kept in close contact with the user's mouth and
nose, affecting the user's speech clarity. In this case, the user's
eyeglasses may fog up, interfering with the user's sight and
breathing smoothness.
SUMMARY OF THE INVENTION
[0005] The present invention has been accomplished under the
circumstances in view. It is one object of the present invention to
provide a detachable adjustable mouth mask consisting of a base
frame member, a shade, a chin support, a chin support connector and
a pair of ear loops, wherein the chin support connector comprises a
clamping groove for detachably securing the base frame member for
allowing replacement of the shade.
[0006] Further, the chin support connector comprises two lugs each
defining a pivot hole; the chin support comprises two connection
members each comprising a pivot pin. By means of coupling the pivot
pins of the connection members of the chin support to the pivot
holes of the lugs of the chin support connector, the chin support
and the chin support connector are pivotally coupled together,
allowing adjustment of the relative angular position between the
chin support and the chin support connector.
[0007] Further, the chin support comprises two extension arms
symmetrically extended from two opposite lateral sides thereof; the
ear loops are respectively connected to the distal ends of the
extension arms for hanging on the user's ears without interfering
with angular adjustment between the chin support and the chin
support connector.
[0008] Further, the chin support comprises a spacer block that
defines with the chin support connector a ventilation passage for
exhaust of exhaled air downwardly and rapidly.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is an exploded view of as detachable adjustable mouth
mask in accordance with a first embodiment of the present
invention.
[0010] FIG. 2 is a schematic sectional assembly view of the
detachable adjustable mouth mask in accordance with the first
embodiment of the present invention.
[0011] FIG. 3 is a perspective assembly view of the detachable
adjustable mouth mask in accordance with the first embodiment of
the present invention.
[0012] FIG. 4 is an exploded view of a detachable adjustable mouth
mask in accordance with a second embodiment of the present
invention.
[0013] FIG. 5 is a perspective assembly view of the detachable
adjustable mouth mask in accordance with the second embodiment of
the present invention.
[0014] FIG. 6 is an exploded view of a detachable adjustable mouth
mask in accordance with a third embodiment of the present
invention.
[0015] FIG. 7 is an enlarged view of a part of FIG. 6.
[0016] FIG. 8 is a schematic sectional assembly view of the
detachable adjustable mouth mask in accordance with the third
embodiment of the present invention.
[0017] FIG. 9 is a perspective assembly view of the detachable
adjustable mouth mask in accordance with the third embodiment of
the present invention.
[0018] FIG. 10 is an exploded view of an alternate form of the
detachable adjustable mouth mask in accordance with the third
embodiment of the present invention.
[0019] FIG. 11 is an exploded view of a detachable adjustable mouth
mask in accordance with a fourth embodiment of the present
invention.
[0020] FIG. 12 is a schematic sectional assembly view of the
detachable adjustable mouth mask in accordance with the fourth
embodiment of the present invention.
[0021] FIG. 13 is a perspective assembly view of the detachable
adjustable mouth mask in accordance with the fourth embodiment of
the present invention.
[0022] FIG. 14 is an exploded view of an alternate form of the
detachable adjustable mouth mask in accordance with the fourth
embodiment of the present invention.
[0023] FIG. 15 is an exploded view of a detachable adjustable mouth
mask in accordance with a fifth embodiment of the present
invention.
[0024] FIG. 16 is a perspective assembly view of the detachable
adjustable mouth mask in accordance with the fifth embodiment of
the present invention.
[0025] FIG. 17 is an enlarged view of a part of FIG. 16,
illustrating the structure of the receptacle of the chin
support.
[0026] FIG. 18 is an exploded view of a detachable adjustable mouth
mask in accordance with a sixth embodiment of the present
invention.
[0027] FIG. 18-1 is an exploded view of a detachable adjustable
mouth mask in accordance with a seventh embodiment of the present
invention.
[0028] FIG. 19 is a perspective assembly view of the detachable
adjustable mouth mask in accordance with the sixth embodiment of
the present invention.
[0029] FIG. 20 is an exploded view of a detachable adjustable mouth
mask in accordance with an eighth embodiment of the present
invention.
[0030] FIG. 21 corresponds to FIG. 20, illustrating the shade
fastened to the base frame member.
[0031] FIG. 22 is an enlarged view of a part of FIG. 20,
illustrating the relationship between the coupling hole of the
shade and the respective lug of the base frame member.
[0032] FIG. 23 is a schematic sectional view of a part of the eight
embodiment of the present invention, illustrating the coupling
holes of the shade coupled to the necks of the lugs of the base
frame member.
[0033] FIG. 24 is an exploded view of a detachable adjustable mouth
mask in accordance with a ninth embodiment of the present
invention.
[0034] FIG. 25 is a perspective assembly view of the detachable
adjustable mouth mask in accordance with the ninth embodiment of
the present invention.
[0035] FIG. 26 is an enlarged view of a part of FIG. 24,
illustrating the relationship between the coupling hole of the
shade and the respective round head stud of the base frame
member.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0036] Referring to FIGS. 1, 2 and 3, a detachable adjustable mouth
mask in accordance with a first embodiment of the present invention
is shown comprising a base frame member 2, a chin support connector
1, a shade 4, a chin support 3, and a pair of ear loops 35.
[0037] The base frame member 2 is smoothly arched to fit the
curvature of a human face, comprising a thin wall portion 22 on the
middle. The shade 4 has the bottom side thereof fastened to the
base frame member 2, forming with the base frame member 2 a curved
surface. The chin support connector 1 is detachably fastened to the
thin wall portion 22 of the base frame member 2 to hold the chin
support 3, allowing replacement of the shade 4. The chin support
connector 1 comprises a clamping groove 12 detachably fastened to
the thin wall portion 22, a plurality of friction ribs 121 disposed
in the clamping groove 12 to enhance friction between the inside
wall of the chin support connector 1 and the thin wall portion 22
of the base frame member 2, and a pair of lugs 11 protruded from an
inner wall thereof. Each lug 11 comprises a pivot hole 111 and a
plurality of teeth 112 radially disposed at one side thereof around
the pivot hole 111.
[0038] The chin support 3 comprises a pair of connection members 31
respectively disposed at the two distal ends of the top side
thereof and respectively pivotally connected to the lugs 11 of the
chin support connector 1. Each connection member 31 comprises a
pivot pin 311 pivotally connected to the pivot hole 111 of one
respective lug 11 of the chin support connector 1, and a plurality
of teeth 312 radially disposed at one side thereof around the pivot
pin 311 and engaged with the teeth 112 of the respective lug 11 of
the chin support connector 1. The chin support 3 further comprises
a spacer block 33 located on the inner side thereof for direct
contact with the user's chin to keep the shade 4 away from the
user's mouth and nose at a distance. Subject to the connection
between the pivot pins 311 of the connection members 31 of the chin
support 3 and the pivot holes 111 of the lugs 11 of the chin
support connector 1, the chin support 3 can be biased forwards or
backwards relative to the base frame member 2 to the desired
tilting angle. The chin support 3 further comprises two extension
arms 34 symmetrically extended from two opposite lateral sides
thereof. Further, the ear loops 35 are respectively connected to
the distal ends of the extension arms 34 of the chin support 3 for
hanging on the user's ears. Further, subject to the engagement
structure between the teeth 112 of the lugs 11 of the chin support
connector 1 and the teeth 312 of the connection members 31 of the
chin support 3, the chin support 3 can be quickly secured in
position after angular adjustment relative to the base frame member
2. Further, a ventilation passage 331 is defined between the spacer
block 33 of the chin support 3 and the base frame member 2 for
exhaust of exhaled air downwardly and rapidly. Further, the shade 4
has a top notch 41 for ventilation, avoiding accumulation of
breathing hot air inside the shade 4 and enhancing wearing
comfort.
[0039] FIGS. 4 and 5 illustrate a detachable adjustable mouth mask
in accordance with a second embodiment of the present invention.
This second embodiment is substantially similar to the aforesaid
first embodiment with the exception that the chin support connector
is formed integral with a part of the base frame member, i.e., the
base frame member 2 comprises two lugs 21 located on an inner side
of a middle part thereof and kept apart at a distance. Each lug 21
comprises a pivot hole 211 to pivotally coupled to the pivot pin
311 of one respective connection member 31 of the chin support 3,
and a plurality of teeth 212 radially disposed at one side thereof
around the pivot hole 211 for engagement with the teeth 312 of one
respective connection member 31 of the chin support 3.
[0040] FIGS. 6-9 illustrate a detachable adjustable mouth mask in
accordance with a third embodiment of the present invention.
According to this third embodiment, the detachable adjustable mouth
mask comprises a base frame member 2, a chin support connector 1, a
shade 4, a chin support 3, and a pair of ear loops 35.
[0041] The base frame member 2 is smoothly arched to fit the
curvature of a human face, comprising a thin wall portion 22 on the
middle. The shade 4 has the bottom side thereof fastened to the
base frame member 2, forming with the base frame member 2 a curved
surface. The chin support connector 1 is detachably fastened to the
thin wall portion 22 of the base frame member 2 to hold the chin
support 3, allowing replacement of the shade 4. The chin support
connector 1 comprises a clamping groove 12 detachably fastened to
the thin wall portion 22, a plurality of friction ribs 121 disposed
in the clamping groove 12 to enhance friction between the inside
wall of the chin support connector 1 and the thin wall portion 22
of the base frame member 2, and two round head studs 13 protruded
from an inner wall thereof. Each round head stud 13 has a round
head stud 131.
[0042] The chin support 3 comprises a pair of connection members 32
respectively disposed at the two distal ends of the top side
thereof and respectively pivotally connected to the round head
studs 13 of the chin support connector 1. Each connection member 32
comprises a ball socket 322 coupled to one respective round head
stud 13 of the chin support connector 1, and a plurality of slits
321 cut through the peripheral wall of the ball socket 322 to
enhance the elasticity of the ball socket 322. The chin support 3
further comprises a spacer block 33 located on the inner side
thereof for direct contact with the user's chin to keep the shade 4
away from the user's mouth and nose at a distance, and two
extension arms 34 symmetrically extended from two opposite lateral
sides thereof. Further, the ear loops 35 are respectively connected
to the distal ends of the extension arms 34 of the chin support 3
for hanging on the user's ears. Subject to the connection structure
between the ball sockets 322 of the connection members 32 of the
chin support 3 and the round head studs 13 of the chin support
connector 1 and the design of the slits 321 of the ball sockets 322
of the connection members 32 of the chin support 3, the chin
support 3 can be biased relative to the base frame member 2 to the
desired tilting angle. Further, a ventilation passage 331 is
defined between the spacer block 33 of the chin support 3 and the
base frame member 2 for exhaust of exhaled air downwardly and
rapidly. Further, the shade 4 has a top notch 41 for ventilation,
avoiding accumulation of breathing hot air inside the shade 4 and
enhancing wearing comfort. Further, as an alternate form of this
third embodiment, the chin support connector 1 can be configured to
provide only one single round head stud 13 on the middle, and the
chin support 3 can be configured to provide only one single
connection member 32 for connection with the single round head stud
13 of the chin support connector 1, as shown in FIG. 10.
[0043] FIGS. 11, 12 and 13 illustrate a detachable adjustable mouth
mask in accordance with a fourth embodiment of the present
invention. This fourth embodiment is substantially similar to the
aforesaid third embodiment with the exception that the chin support
connector is formed integral with a part of the base frame member,
i.e., the base frame member 2 of the detachable adjustable mouth
mask in accordance with this fourth embodiment comprises two round
head studs 13 located on an inner side of a middle part thereof and
kept apart at a distance and respectively detachably connected to
the ball sockets 322 of the connection members 32 of the chin
support 3. Subject to the connection structure between the ball
sockets 322 of the connection members 32 of the chin support 3 and
the round head studs 13 of the base frame member 2 and the design
of the slits 321 of the ball sockets 322 of the connection members
32 of the chin support 3, the chin support 3 can be biased relative
to the base frame member 2 to the desired tilting angle. Further,
as an alternate form of this fourth embodiment, the base frame
member 2 can be configured to provide only one single round head
stud 13 on the middle, and the chin support 3 can be configured to
provide only one single connection member 32 for connection with
the single round head stud 13 of the base frame member 2, as shown
in FIG. 14.
[0044] FIGS. 15 and 16 illustrate a detachable adjustable mouth
mask in accordance with a fifth embodiment of the present
invention. According to this fifth embodiment, the detachable
adjustable mouth mask comprises a base frame member 5, a shade 6, a
chin support 7, and a pair of ear loops 53. The base frame member 5
is smoothly arched to fit the curvature of a human face, comprising
two plug rods 51 extended from the inner wall of the middle part
thereof and kept apart at a predetermined distance and two clamping
plates 52 respectively extended from the inner wall near the two
distal ends thereof. Each clamping plate 52 defines with the inner
wall of the base frame member 5 a clamping groove 521. Further,
each clamping plate 52 comprises a plurality of friction ribs 522
disposed in the clamping groove 521. The chin support 7 comprises
two receptacles 71 corresponding to the plug rods 51 of the base
frame member 5. Each receptacle 71 comprises a plug hole 72 for
receiving one respective plug rod 51 of the base frame member 5,
and a plurality of friction ribs 721 disposed in the plug hole 72
to enhance friction between the inserted plug rod 51 and the
respective receptacle 71 (see FIG. 17). The shade 6 comprises two
through holes 61 disposed adjacent to the bottom side 621 thereof
and respectively coupled to the two plug rods 51 of the base frame
member 5, and two opposing end protrusions 62 respectively engaged
into the clamping grooves 521 of the clamping plates 52 of the base
frame member 5 and kept in friction engagement with the friction
ribs 522. After the base frame member 5 and the shade 6 are
assembled, the plug rods 51 of the base frame member 5 are
press-fitted into the plug holes 72 of the receptacles 71 of the
chin support 7 in friction engagement with the friction ribs 721.
Thus, the base frame member 5, the shade 6 and the chin support 7
can be conveniently and detachably assembled, allowing replacement
of the shade 6. Further, the ear loops 53 are respectively
connected to the distal ends of the base frame member 5 for hanging
on the user's ears. The chin support 7 further comprises a spacer
block 73 located on the inner side thereof for direct contact with
the user's chin to keep the shade 6 away from the user's mouth and
nose at a distance.
[0045] FIGS. 18 and 19 illustrate a detachable adjustable mouth
mask in accordance with a sixth embodiment of the present
invention. This sixth embodiment is substantially similar to the
aforesaid fifth embodiment with the exception that two notches 611
are made on the bottom side 621 of the shade 6 instead of the
aforesaid through holes 61; the base frame member 5 further
comprises an extra clamping plate 54 extended from the inner wall
on the middle between the two plug rods 51 for clamping the middle
part of the bottom side 621 of the shade 6. This extra clamping
plate 54 defines with the inner wall of the base frame member 5 a
clamping groove 541. Further, this extra clamping plate 54
comprises a plurality of friction ribs 542 disposed in the clamping
groove 541.
[0046] FIG. 18-1 illustrates a detachable adjustable mouth mask in
accordance with a seventh embodiment of the present invention. This
seventh embodiment is substantially similar to the aforesaid sixth
embodiment with the exception that the base frame member 5
eliminates the aforesaid clamping plates 52;54. During installation
of this seventh embodiment, the notches 611 of the shade 6 are
respectively attached to the plug, rods 51 of the base frame member
5, and then the shade 6 is bonded to the inner wall of the base
frame member 5 using an adhesive or high-frequency sealing
technology, and then the plug rods 51 of the base frame member 5
are respectively detachably press-fitted into the receptacles 71 of
the chin support 7.
[0047] FIGS. 20-23 illustrate a detachable adjustable mouth mask in
accordance with an eighth embodiment of the present invention.
According to this eighth embodiment, the detachable adjustable
mouth mask comprises a base frame member 8, a shade 6, a chin
support 9, and a pair of ear loops 95. The base frame member 8 is
smoothly arched to fit the curvature of a human face, comprising
two clamping plates 82 inwardly extended from two distal ends
thereof, one supplementary clamping plate 84 extended from the
inner wall thereof on the middle, and two lugs 81 extended from the
inner wall at two opposite lateral sides relative to the
supplementary clamping plate 84. The clamping plates 82;84 each
comprises a clamping groove 821;841, and a plurality of friction
ribs 822;842 disposed in the clamping groove 821;841. Each lug 81
comprises a pivot hole 811, a plurality of teeth 812 radially
disposed at one side thereof around the pivot hole 811, a neck 813
connected to the inner wall of the base frame member 8, and a
collar 814 extending around the periphery of the neck 813. The
distance between the collar 814 of the lug 81 and the inner wall of
the base frame member 8 is equal to the wall thickness of the shade
6. The shade 6 comprises two end protrusions 62 extended from the
two distal ends of the bottom side 621 thereof, and two coupling
holes 612 located on the bottom side 621 corresponding to the lugs
81 of the base frame member 8. Each coupling hole 612 defines a
narrow bottom entrance 613. The chin support 9 comprises two
connection members 91, two extension arms 94 respectively extended
from two opposite sides thereof, and a spacer block 93 located on
the inner side thereof for direct contact with the user's chin to
keep the shade 6 away from the user's mouth and nose at a distance.
Each connection member 91 comprises a pivot pin 911, and a
plurality of teeth 912 radially disposed at one side thereof around
the pivot pin 911. By means of the narrow bottom entrance 613 of
each coupling hole 612, the shade 6 is inserted into the clamping
grooves 821;841 of the clamping plates 82;84 and the gap between
the collar 814 of each lug 81 and the inner wall of the base frame
member 8 and secured to the base frame member 8. The narrow bottom
entrance 613 of each coupling hole 612 of the shade 6 can be
expanded for allowing the neck 813 of the respective lug 81 of the
base frame member 8 to be engaged into the respective coupling hole
612. After insertion of the respective lug 81 of the base frame
member 8 into the respective coupling hole 612, the narrow bottom
entrance 613 immediately returns to its former shape subject to the
elastic material property of the shade 6. By means of inserting the
pivot pins 911 of the connection members 91 into the pivot holes
811 of the lugs 81, the chin support 9 is coupled to the base frame
member 8, and can be adjusted to the desired tilting angle and then
secured in the adjusted position by engagement between the teeth
812;912.
[0048] Referring to FIGS. 24-26 illustrate detachable adjustable
mouth mask in accordance with a ninth embodiment of the present
invention. This ninth embodiment is substantially similar to the
aforesaid eighth embodiment shown in FIGS. 20-23 with the exception
that two round head studs 83 are provided at the base frame member
8 to substitute for the aforesaid lugs 81 protruded from an inner
wall thereof, each round head stud 83 having a neck 813 connected
to the inner wall of the base frame member 8 and a collar 814
extending around the periphery of the neck 813; the connection
members 92 of the chin support 9 each comprise a ball socket 922
coupled to one respective round head stud 83 of the base frame
member 8, and a plurality of slits 921 cut through the peripheral
wall of the ball socket 922 to enhance the elasticity of the ball
socket 922.
[0049] Although particular embodiments of the invention have been
described in detail for purposes of illustration, various
modifications and enhancements may be made without departing from
the spirit and scope of the invention. Accordingly, the invention
is not to be limited except as by the appended claims.
* * * * *