EP3153044B1 - Hood for cleanroom gown and clean room gown - Google Patents
Hood for cleanroom gown and clean room gown Download PDFInfo
- Publication number
- EP3153044B1 EP3153044B1 EP15306593.3A EP15306593A EP3153044B1 EP 3153044 B1 EP3153044 B1 EP 3153044B1 EP 15306593 A EP15306593 A EP 15306593A EP 3153044 B1 EP3153044 B1 EP 3153044B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- visor
- hood
- opening
- border
- operator
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 83
- 238000003825 pressing Methods 0.000 claims description 24
- 210000003128 head Anatomy 0.000 claims description 22
- 210000001061 forehead Anatomy 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 210000001331 nose Anatomy 0.000 description 56
- 239000004744 fabric Substances 0.000 description 36
- 238000001914 filtration Methods 0.000 description 16
- 238000003780 insertion Methods 0.000 description 15
- 230000037431 insertion Effects 0.000 description 15
- 239000000463 material Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 8
- 210000005069 ears Anatomy 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 239000011358 absorbing material Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 210000002816 gill Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 210000000537 nasal bone Anatomy 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/1153—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a hood
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1184—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with protection for the eyes, e.g. using shield or visor
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2200/00—Components of garments
- A41D2200/20—Hoods
Definitions
- the present invention concerns a hood comprising a base body defining an outside and an inside adapted to receive a head of an operator, the base body having a visor opening having a lower border and an upper border and two lateral borders, wherein the hood includes a visor fixed in the visor opening, wherein the visor comprises a visor circumference with an upper border and a lower border, the lower border of the visor comprising a nose cut-out provided for a nose of the operator, as well as a corresponding cleanroom gown comprising such a hood.
- FR 3 016 271 A1 concerns a hood for a cleanroom gown.
- the cleanroom gown includes goggles, which are sewed to the hood at a seam.
- Cleanroom gowns are used in cleanrooms for protecting the object to be manipulated by an operator from dust and other microscopic particles carried by the operator.
- Example of cleanrooms are packaging facilities for medicine items and manufacturing plants for microelectronic products, such as microchips.
- the known cleanroom gowns comprise a hood having a visor opening.
- the visor is usually strapped around the head and is in the form of a goggle.
- the goggles are difficult to manipulate and tend to not seal the head completely off the outside.
- these comprise a visor opening, wherein the hood has fixing means adapted to releasably fix the visor to the hood.
- Object of the invention is to provide an improved hood, which has a high operational security and is comfortable to wear for an operator. It should ascertain a clear vision. Further, the hood should be easy to clean and economic.
- a hood is provided according to claim 1.
- a cleanroom gown comprises a body portion, arms, legs and a hood according to an embodiment disclosed herein.
- the hood 4 comprises a base body 8.
- the base body 8 is preferably formed integrally with the body portion 2 of the gown.
- the cleanroom gown 1 comprises a body portion 2 and a hood 4, whereby the hood 4 is separate, i.e. detached, from the body portion 2.
- the body portion 2 is in the form of a coat.
- the hood 4 defines a hood central axis X-X, which extends substantially vertical or along the central axis of a head of an operator 10, when the hood is used by the operator 10 (shown in Figure 4 ).
- the terms “above”, “below”, “upper”, “lower”, “central”, “lateral”, “top”, “bottom”, “horizontal”, “vertical”, “front” and “back” are used for defining the hood 4 when being worn by the operator 10 and in the perspective of the operator 10, when the operator has his head in the upright position as shown in Figure 4 .
- the front part of the hood 4 is in front of the face of the operator 10 and the back part of the hood 4 is behind the head or the back of the operator 10.
- the base body 8 confines an inside 12 adapted to receive a head 14 of the operator 10 and delimits the inside with respect to an outside 16 (see Figures 3 and 4 ).
- the base body 8 has also a visor opening 18.
- the visor opening 18 is substantially rectangular and extends in front of a region of the eyes of the operator when the hood 6 is worn.
- the visor opening 18 defines a visor opening circumference 20 comprising a lower border 22, two lateral borders 24, 26 and an upper border 28.
- the lateral borders 24, 26 are connecting the lower border 22 to the upper border 28.
- At least the lower border 22, in particular all borders 22, 24, 26, 28 are formed from a flexible material, for example cleanroom fabric. In other words they are not stiff and cannot retain a specific shape without a reinforcing device and/or a visor.
- the lower border 22, in particular all borders 22, 24, 26, 28, is/are rigid and/or provided with a reinforcing device.
- the visor opening circumference 20 is rigid.
- a rigid frame may be sewed, glued or otherwise fixed to the hood body 8 to the borders 22, 24, 26, 28, for example from the inside 12.
- the borders retain the shape of the visor opening without the inserted visor.
- the rigid frame or reinforcing device comprises a rigid material frame, for example rigid plastic frame, directed to the visor opening circumference 20 or the borders 22, 24, 26, 28 and a soft sealing device provided as a layer on the plastic frame in direction to the inside 12.
- the plastic frame is of polycarbonate and the sealing device is manufactured from neoprene or polychloroprene.
- the sealing device is manufactured from neoprene or polychloroprene.
- a single material may be used for the rigid frame or reinforcing device. In such a case it fulfills also both functions, the rigidity and the sealing as it will be explained later-below.
- the hood 6 comprises furthermore a visor 30 and fixing means 31 adapted for releasably fixing the visor 30 to the base body 8 in the visor opening 18.
- the visor 30 is a transparent plate which is, in a non-constraint configuration, completely flat or plane. In other embodiments, the visor 30 is in the non-constraint configuration rounded.
- the general shape of the visor 30 is rectangular or trapezoidal with rounded corners.
- the visor 30 has a lower border 32, an upper border 34 and two lateral borders 36, 38 connecting the lower border 32 to the upper border 34. According to an embodiment, the lateral borders 36, 38 are shorter than the lower border 32 and/or the upper border 34.
- the visor presents at its lower border 32 a concave nose cut out 40.
- the nose cut-out 40 and/or the visor 30 are symmetrically to the central axis X-X.
- the nose cut out 20 extends over the nose 42 (see Figure 4 ) of the operator 10 when the hood 4 is worn.
- the nose cut-out 40 has a lengths L in direction of the central axis X-X.
- the nose cut-out 40 has a width W at a lower end 44 in transversal direction. The transversal direction is orthogonal to the central axis X-X.
- the nose cut-out tapers from its lower end 44 to its upper end 46.
- the width W is between 3 and 8 cm, for example about 6cm
- the length L is between 3 and 6 cm, for example about 4.5 cm.
- the nose cut-out has substantially the shape of a nose. The nose cut-out enables to isolate the visor from the hot, moisturized air coming from the mouth, though reducing condensation dramatically and brings the bottom or lower border 32 of the visor 30 closer to the cheeks to further improve downward vision.
- the visor includes a nose bulge covering the nose, substantially the complete nasal bone, in particular down to the nose tip.
- the nose bulge extends to the front direction.
- the nose bulge is open in downward direction to enable breathing through the nose.
- the nose bulge substantially conforms to the nose of the operator.
- the visor 30 is provided with at least one first portion 48 of a fixing device 50 (see also Figure 4 ).
- the at least one first portion 48 of the fixing device may be arranged on the central axis X-X at the upper end 46 of the nose cut-out 40.
- the at least one first portion 48 of the fixing device 50 is arranged in a distance between 0.5 and 2 cm from an edge or circumference 52 of the visor 30.
- FIG. 1, 2 and 4 shows only one fixing device 50.
- a plurality of fixing devices 50 are arranged at the upper end 46 of the nose cut-out 40, for example symmetrically with respect to the central axis X-X.
- the fixing device is provided at the front and/or lower end of the nose bulge.
- the front end of the nose bulge is positioned close to the nose tip of the operator.
- a plurality of fixing devices 50 are arranged at the around the lower end of the nose bulge, for example symmetrically with respect to the central axis X-X.
- the fixing device 50 is provided to releasably fix the lower border 22 of the visor opening 18, in particular a portion of the lower border 22, at the nose cut-out 40 or the nose bulge, to the visor, such that lower border 22 of the visor opening 18 follows closely the edge or circumference 52 of the visor 30. Without the fixing device 50, there would be an opening between the lower border 22 of the visor opening and the upper end 46 of the nose cut-out 40 or the front end of the nose bulge.
- the fixing device 50 is a pressure button, a press snap button, a zip fastener and/or a hook and loop fastener (Velcro fastener).
- a (single) metal hook/lace fastener or metal hook/loop fastener instead of metal another rigid material may be used.
- the first portion 48 of the fixing device 50 is a lower or upper portion of the pressure button, the lower or upper portion of press snap button and/or a hook portion or a loop portion of a hook and loop fastener.
- the first portion 48 of the fixing device 50 is an opening through which the other portions of the fixing 50 device are connected.
- the lower border 22 is provided with a rigid nose frame sewed, glued or otherwise fixed to the base body 8.
- the rigid nose frame retains its shape in a non-constraint configuration, for example when the visor is not inserted into the visor opening.
- the rigid nose frame is substantially V-shaped (upside down) in a front view. It corresponds substantially to the nose cut-out of the visor 30. In such a case only the central portion of the lower border 22 of the visor opening 18 is rigid.
- the rigid nose frame may be constructed as the rigid frame described here-above.
- the visor 30 is integrally made, in particular in one piece, from plastic such as polycarbonate. Alternatively, the visor 30 is made from any other material usable for cleanroom use.
- the visor 30 is flexible and can be bent elastically into a concave shape.
- the visor 30 is an anti-fog visor and may contain an anti-fog coating on the inner side.
- the fixing means 31 are adapted to fix the visor 30 to the base body 8 substantially along the visor circumference 22 and in particular substantially along the complete visor circumference 22.
- the fixing means 31 are adapted to fix the visor 30 to the base body 8 along substantially the whole visor opening circumference 20. In other words, the visor 30 is held in place by the clean room fabric of the hood 4.
- the fixing means 31 comprise a fixing groove 54 extending around the visor opening 18 and adapted to receive the visor circumference 52, in particular adapted to receive the whole visor circumference 52.
- the fixing groove may be formed by a reinforced fabric or is provided by the rigid frame and/or the rigid borders 22, 24, 26, 28 of the visor opening.
- the form of the groove 54 may be stable.
- the fixing groove 54 has an upper fixing groove part 56, a lower fixing groove part 58, and two lateral side fixing groove parts (not shown).
- the fixing means 31 define an insertion opening (no shown) and closing means or fastening means adapted to close the insertion opening.
- the insertion opening is closed and forms part of the fixing groove.
- the closing means comprise press snap buttons.
- the closing means can comprise a zipper and/or a hook-and-loop fastener or any other closing means that can be closed and re-opened in a nondestructive and reversible manner.
- the insertion opening and the closing means are arranged on a lateral border 24, 26 of the visor opening 18 and extend substantially parallel to the hood central axis X-X.
- the insertion opening may be provided at the upper border 28 of the visor opening and extend in traverse direction to the hood central axis X-X.
- the fixing means 31 are adapted to allow an insertion and/or retraction of the visor 30 into/from the position in which the visor 30 is fixed to the base body 8 over the visor opening 18 by sliding.
- the closing means are unfastened, the insertion opening is open and the visor 30 is insertable through the insertion opening into the fixing groove 54 by a sliding movement.
- the visor 30 is inserted from the interior of the visor opening 18 and subsequently hold in place when closing the fixing device 50.
- both, the interior portion of the groove and the exterior border of the groove are provided with second and third portions of the fixing device 50.
- the exterior border of the groove is provided with the hooks (second portion) of a hook and loop fastener and the interior border of the groove 54 is provided with the loops (third portion) of the hook and loop fastener.
- the second portion and the third portion of the fixing device is then connected through an opening of the visor that forms, as described above, the first portion of the fixing device 50.
- the base body 8 comprises abutments 60 for the visor 30.
- the abutments 60 are adapted to maintain the visor 30 in a pre-stressed bent configuration around the central axis X-X when the fixing means 31 fix the visor to the base body 8.
- the visor 30 is essentially in a part cylindrical shape.
- the abutments 60 are generally defined by the bottom of the fixing groove 54 at the lateral borders 24, 26 of the visor opening 18.
- a closing means is provided at a lateral border 24, 26, also the closing means defines an abutment 60.
- the two abutments 60 are spaced apart with an effective width, which is smaller than an effective width of the visor 30 when in the non-constraint configuration.
- the hood is provided with a spacing element 62 adapted to hold the upper border 34 of the visor 30 in a predetermined distance from the forehead 64 of the user 10 of the hood 4.
- the spacing element is provided as a rigid ring 62, which is fixed or integrated into the base body 8 of the hood 4. In other embodiments, the spacing element 62 may be a portion of a ring or rod shaped.
- the ring 62 is fixed to the base body 8 of the hood 4, such that it extends in a substantial horizontal plane P, when the operator holds his head in an upright position. For example, the substantial horizontal plane P is provided above the eye height of the operator.
- the ring 62 is provided in an inclined position, such that a front portion 65 of the ring 62 is above the eye height of the operator 10.
- the front portion 65 of the spacing element is a fixed relationship with the upper border 34 of the visor 30.
- the front portion 65 of the spacing element 62 is connected to the interior of the base body 8 at the upper border 28 or adjacent to the upper border 28 of the visor opening 18.
- the spacing element 62 enables to incline the visor 30 in an oblique direction with respect to a vertical direction V, when the operator holds his head upright.
- the angle ⁇ between a vertical direction V and the visor at the central axis X-X is between 25 and 60 degrees, in particular between 30 and 50 degrees.
- the front portion 65 of the spacing element 62 or the upper border 34 of the visor 30, the lower border 32 of the visor 30 supported by the cheeks of the operator and a rigidity of the visor enables a substantially stationary placement of the visor with respect face of the operator, in particular when the lower border 32 of the visor 30 is pressed on the cheeks.
- the spacing element 62 enables to create space between the visor 30 and the forehead 64 to wear glasses. Further, it is possible to press the visor on the cheeks at their lower border 32 to further extend downward vision by limiting the distance between the cheeks and the visor.
- the space between the forehead 64 of the operator 10 and the upper border 34 of the visor 30 is between 3 and 10 cm, in particular between 4 and 7 cm.
- the distance between the cheek of the operator and the lower border 32 is between 0 and 4cm, in particular below 1,5 cm.
- the distance between the forehead 64 of the operator and the upper border 34 of the visor 30 is greater than the distance between the cheek of the operator and the lower border 32 of the visor 30.
- the spacing element 62 is supported by ears of the operator 10.
- the spacing element 62 may be supported by the head of the operator 10 either directly, when supported by the ears, or indirectly, like shown in the figures, where the top of the head of the operator is in abutment relationship with the interior of the base body 8 to which the spacing element 62 is fixed.
- the spacing element 62 is provided in an envelope in the hood body 8 or fixed with rings thereto.
- the hood comprises on the interior side of the base body 8 at the lower border 22 of the visor opening 18 at least one first sealing device 66. It is provided to seal a possible gap between the lower border 22 of the visor opening 18 and the cheek of the operator 10.
- the sealing devices 66 extend, on both sides of the nose cut-out, between the nose cut-out 40, when provided into the visor opening 18, and the respective lateral borders 24, 26 of the visor opening 18. In other embodiments, the sealing devices 66 extend almost to the ears of the operator. According to some embodiments, the sealing devices extend substantially to the upper end of the nose cut-out.
- the first sealing devices are arranged in a curved shaped, having an angle at the lower end 44 of the nose-cut-out.
- the first sealing devices follow, respectively on both sides of the nose cut-out 40, the lower border 32 of the visor 30 and/or the lower border of the visor opening 18.
- the sealing devices extend similarly on both sides of the nose bulge in another embodiment.
- the first sealing devices 66 extend in a substantially horizontal direction.
- At least one second sealing device 67 extends along the lateral borders 24, 26 of the visor opening, in particular on the interior side of the base body 8.
- the at least one second sealing device 67 extends in a substantially vertical direction.
- At least one third sealing device 68 extends along the top or in the front of the forehead 64 of the operator 10, in particular on the interior side of the base body 8.
- the third sealing device 68 extends substantially in a horizontal direction or plane and follows the contour of the forehead of the operator 10.
- the first sealing devices 66 are arranged between 0 and 3cm away from the lower border 22 of the visor opening, the second sealing devices are arranged between 0 and 6cm away from the lateral borders 24, 26 of the visor opening and the third sealing device 68 is arranged between 3cm and 10cm away from the upper border 28 of the visor opening.
- Each sealing device 66, 67, 68 has, in its width direction a first border 66a, 67a, 68a and a second border 66b, 67b, 68b, and a longitudinal direction orthogonal to the width direction.
- the longitudinal direction is orthogonal to the stripes shown in Figure 4 .
- the longitudinal direction is, on the cheeks, substantially horizontal and parallel to the lower border 22 of the visor opening 18, for the second sealing device 68, the longitudinal direction is substantially parallel to the vertical direction and/or to the lateral border 26 of the visor opening 18.
- the longitudinal direction of the third sealing device 68 is nearly parallel to the longitudinal direction of the first sealing device 67 and/or parallel to the upper border 28 of the visor opening 18.
- the at least one first, second and third sealing devices 66 is/are a ribbing stretched fabric, for example like at the cuffs of a sweatshirt.
- the sealing devices stretches in its longitudinal direction, for example the at least one first sealing device 66 stretches in horizontal direction, the at least one second sealing device 67 stretches in vertical direction, and/or the at least one third sealing device 68 stretches horizontal direction.
- a length of the stretched first, second and/or third sealing devices is at least 2 times greater, in particular at least 1.5 greater than the length of the respective non-stretched first, second and/or third sealing devices.
- the at least first, second and/or third sealing devices 66, 67, 68 draws automatically back into its non-stretched state.
- the sealing devices are elastically stretchable.
- the sealing devices 66, 67, 68 cannot be stretched in their width direction, wherein the width direction is orthogonal to the longitudinal direction.
- the width of the stretched first, second and/or third sealing devices is less than 1.2 times greater, greater than the width of the respective non-stretched first, second and/or third sealing devices.
- the sealing devices are, according to an embodiment, adapted to the shape of the operator.
- the first sealing device follows the form of the nose and extends along the cheek of the operator.
- the sealing devices 66, 67, 68 have, for example, a thickness of between 5 mm and 20 mm, in particular between 7mm and 10 mm. Further, they extend in the plane of the visor 30 between 10 mm and 70 mm, in particular between 20 and 50 mm.
- the at least one first, second and/or third sealing devices 66, 67, 68 are sewed, glued or otherwise fixed to the base body 8. For example, the sealing devices 66, 67, 68 are fixed at their first border 66a, 67a, 68a to the base body 8.
- each of the sealing devices is fixed, in particular is only fixed, the one of their borders 66a, 67a, 68a, which is more spaced away or directed away from the visor opening 18, and, in particular is not fixed at the respective other border 66b, 67b, 68b, which is directed towards the visor opening.
- the sealing devices 66, 67, 68 are fixed at their ends in longitudinal direction to the base body 8. The fixing enables a movement of the second border 66b, 67b, 68b from a first position, in contact with the base body 8, to a second position, where the second border 66b, 67b, 68b is in contact with the cheek or other portions of the face of the operator 10.
- the first second and third sealing devices are fabricated from polyester.
- the at least one first, second and/or third sealing devices 66, 67, 68 enable to better position a mask portion and the visor of the hood 4, in particular without the need for the operator to touch the hood except for the pressing devices as explained below.
- the first, second and/or third sealing devices increase the comfort for the operator.
- the sealing devices 66, 67, 68 are fixed on all borders 22, 24, 26, 28 to the base body 8.
- the sealing devices 66, 67, 68 are not stretchable.
- the rigid frame or reinforcing device comprises the rigid material frame, for example rigid plastic frame, directed to the visor opening circumference 20 or the borders 22, 24, 26, 28 and the one or more soft sealing devices provided as a layer on the plastic frame in direction to the inside 12.
- the soft sealing devices cover at least the rigid material frame at the lower borders 22 of the visor opening, in particular all borders 22, 24, 26, 28 of the visor opening.
- the hood comprises an inhalation and exhalation device 70.
- the inhalation and exhalation device 70 has a mask portion 72, which has, for example, from the front, a substantially diamond shaped form.
- the mask portion is made of fabric and may be part of the hood body 8.
- the mask portion 72 is for example a mouth and nose piece of the inhalation and exhalation device 70.
- the upper portion 74 is adapted to the nose cut-out 40 or the nose bulge of the visor 30.
- the mask portion 72 has an outer circumference 76, which is sewed, glued or otherwise fixed to the base body 8.
- the mask 72 comprises at least one opening, namely at least one first opening 80 for intake air from the outside 16.
- the mask portion may have at least one second opening 82 for expulse air from the inside 12, for example during exhaling.
- the mask portion 72 has no second opening 82 for expulsing air from the inside, the air will be slowly expulsed through the fabric of the gown.
- FIG. 1 and 4 shows one first opening 80 and one second opening 82.
- two or more first openings 80 and two or more second openings 82 may be provided.
- Each first opening 80 includes at least one intake air one-way valve.
- each valve comprise an outer part and an inner part, each having a diameter being greater than the diameter of the respective opening 80, 82.
- the outer part and the inner part are than which are snapped together.
- one of the outer and inner part are a female part of the valve and the other part is a male part, wherein the female part is inserted into the male part, when mounting the valve into the mask portion 72.
- the intake air one-way valve is a rigid, plastic device.
- the operator may inhale air from the outside 16 without effort.
- the intake air is not filtered.
- dirty air from the operators mouth and nose is prevented to exit via the at least one first opening 80.
- a CO 2 level inside the hood 4 is lowered thanks to the intake of fresh air.
- each second opening 82 comprises also an exhaust air one-way valve.
- the valve may be constructed as the intake air one-way valve and functions just vice-versa.
- the inhalation and exhalation device 70 comprises a filtering device 84, in particular for filtering the exhaled air of the operator 10.
- the filtering device 84 is placed, according to an embodiment, on the back of the operator 10. In other embodiments it may be placed at another position, for example at the back of the head.
- the gown and/or hood which is made of filtering cleanroom fabric can act as a filtering for the exhalation air.
- the at least one second, exhalation opening 82 is optional.
- the filtering device 84 filters the exhaled air or exhaust air and directs the filtered exhaust air in the backward direction B of the operator.
- the filtering device may be produced of the cleanroom fabric of the gown, which filters above 95% of the particles, in particular above 99% of the particles, for example about 99,8% of the particles exhaled by the operator 10. For example particles greater than 1 micron, in particular greater than 0.5 microns are filtered.
- the filtering device 84 is formed as an air buffer or pocket of cleanroom fabric for a slow filtration.
- the inhalation and exhalation device 70 enables to prevent the exhale the air to the front of the operator.
- the filtering device 84 is connected with at least one tubing 86 to at least one second opening 82, in particular all second openings 82.
- the at least one tubing is for example made of a soft cleanroom fabric as the filtering device 84. In other embodiments, the at least one tubing is air tight. Thus, the exhaled air is effectively directed to the filtering device 84.
- This arrangement enables to isolate the hot moisturized air from the rest of the hood 4 by channeling the exhaled air to the filtering device 84, for example the air pocket, which is made of highly filtering fabric and located at the back of the hood 4 to minimize perturbations of the working area of the worker. Additionally, a further isolation is provided between the moisturized air and the visor 30. Further, it provides better comfort to the operator by isolating hot moisturized air outside of the hood 4 and it lowers the CO2 level by isolating CO2 charged air, outside of the coverall where operator breath.
- a pressing device 88 in particular an end of the pressing device, is provided on each lateral border and/or the lower border 22 of the visor opening 18 and/or the visor 30, in particular at least at one corner between the lateral border and the lower border.
- the pressing device is in form of laces.
- the two laces 88 are connected to each other at the back of the neck 90 or the head 14 of the operator 10. In other embodiments, the two laces are connected on the side of the neck 90 or the head 14. At that place the length of the laces 88 is adjusted. In further embodiments, only a single lace 88 is used.
- the one or more pressing devices 88 are provided outside of base body 8 or the hood 4.
- the complete pressing devices 88 are provided outside of the base body 8 or the hood 4.
- the at least one pressing device 88 may be connected to the backward end 89 of the at least one first sealing devices 66.
- the front ends of the at least one pressing device 88 are connected to the back ends of the at least one first sealing devices 66.
- the pressing devices 88 are provided on each lateral side of the mask portion 72 .
- the pressing device is in form of laces fixed to the mask portion 72.
- the second border 66b, 67b, 68b of the sealing devices moves from its first position, in contact with the hood body 8, to their second position, where second border 66b, 67b, 68b is in contact with the cheeks or other portions of the face of the operator 10.
- second border 66b, 67b, 68b is in contact with the cheeks or other portions of the face of the operator 10.
- the upper portion 74 of the mask 72 and the lower border 32 of the visor 30 are arranged adjacent to each other in the hood. In other words, they are connected via the base body 8, in particular via (reinforced) parts of the base body 8 forming the grooves 54 for the circumference 52 of the visor and the circumference 76 of the mask portion 72.
- the lower border 32 of the visor and the upper portion 74 of the mask portion 72 are in a fixed relationship to each other.
- the at least one pressing device 88 allow a better positioning of the mask or inhalation and exhalation device 70 and the visor 30. Further, the one or more pressing devices 88 enable a better sealing between hot moisturized air and the visor 30 to prevent condensation.
- the inhalation and exhalation device 70 is a passive inhalation and exhalation device.
- FIG 4 shows further a pocket 92 filled with a water absorbing material, for example salt, in particular a silica gel.
- the pocket 92 and/or the water absorbing material is fixed to the interior of the base body 8.
- the water absorbing material and/or the pocket is fixed adjacent to or on the borders 22, 24, 26, 28 of the visor opening 18.
- the pocket 94 is fixed adjacent to the upper border 28 of the visor opening.
- the water absorbing material for example in a pocket 92, may be attached to underwear, i.e. the cloths inside the gown 1, of the operator 10. The water absorbing material thus further limits condensation on the visor.
- the hood 6 has an ergonomic shape and is comfortable to wear and reduces the contamination of products to be manufactures with particles of the body of an operator.
- Figure 5 shows another embodiment of the inhalation and exhalation device 94 of a hood 4'.
- the same features are designated with the same reference numbers as in the previous embodiments.
- the hood 4' comprises an inhalation and exhalation device 94, which is provided at the front portion of the base body 8.
- the inhalation and exhalation device includes a mask portion 96.
- the mask portion 96 has substantially the shape of a triangle and is placed below the nose cut-out of the visor 30.
- the mask portion 96 may be an opening.
- the mask portion may be a fabric of a gas material, which leaves air though easily.
- the mask portion may be sewed, glued or otherwise fixed to the base body 8 of the hood 4'.
- the gas material provides a reduced filtering.
- the inhalation and exhalation device 94 comprises guiding device 98.
- the guiding device 98 guides the exhaled air to the backward direction B.
- the guiding device 98 covers completely the front of the mask portion 98 and extends on at least one side at least to the lateral borders 24, 26 of the visor opening to the backward direction.
- the guiding device 98 extends substantially to the ears of the operator 10.
- the guiding device 98 forms a channel, in particular between mask portion 96 and the backward end(s) 100 of the guiding device 98.
- the guiding device 98 is made of a soft fabric, for example cleanroom fabric provided for the gown as detailed here-above.
- the mask portion 96 is covered loosely by the guiding device 98.
- the at least one intake air one way valve, and/or the at least one exhaust air one-way valve may be provided with fabric as shown in figures 6.
- Figure 6 shows a section through a portion of a fabric 102.
- the valves are therefore gill shaped.
- Each valve include one or more openings 104 in form a slit, which is covered with a respective fabric portion 106 on one side of the fabric 102.
- a one way valve is provided.
- the air may pass only in the direction of the arrow through the slit openings.
- Figure 7 shows a further embodiment of a one way valve that may be used as an intake air one way valve and/or exhaust air one-way valve provided in a portion of a fabric 108.
- the fabric may be a cleanroom fabric.
- the fabric is provided with at least one opening 110.
- Figure 7 shows a rectangular opening.
- the opening 110 may also have other forms, for example it may be circular, oval, hexagonal or the like.
- the at least one opening is covered with a sheet 112 of fabric having a surface which extends beyond the borders of the at least one opening 110.
- the sheet 112 covers the at least one opening 110.
- the sheet 112 may cover all of them.
- a rectangular sheet 112 is shown.
- the sheet 112 may also have other forms, for example circular, oval, hexagonal or the like.
- the sheet 112 is fixed to the fabric 6 in at least two, in particular three directions.
- the sheet 112 has four borders 114a to 114d, wherein three borders 114a to 114c are fixed to the fabric 108, for example by sewing, gluing or the like.
- the fourth border 114d is not fixed to the fabric 108. Thus, air may pass only in one direction through the opening 110.
- the sheet 112 is made of cleanroom fabric.
- FIG 8 shows a further embodiment of a hood 4".
- the same features are designated with the same reference numbers as in the previous embodiments.
- the hood 4" shows a variant of the embodiment of Figure 4 .
- the hood comprises an inhalation and exhalation device 120.
- the inhalation and exhalation device 120 has a mask portion 122, which has, for example, from the front, a substantially triangular shaped form.
- the mask portion 122 has at least one first opening 124 for intake air from the outside 16.
- the mask portion may have at least one second opening 126 for expulse air from the inside 12, for example during exhaling.
- the embodiment shown in Figure 8 shows one first opening 124 and one second opening 126. However, in other embodiments also two or more first openings 124 and two or more second openings 126 may be provided.
- Each first opening 124 includes at least one intake air one-way valve, for example the intake air one-way valves as described above with respect to Figures 4 , 6 or 7 .
- each second opening 126 comprises also an exhaust air one-way valve.
- the valve may be constructed as the intake air one-way valve.
- the inhalation and exhalation device 120 includes a guiding device 128 for guiding exhaled air from the at least one second opening 126 to the backward direction B.
- the guiding device 128 covers partly the front of the mask portion 122 at the at least one second opening 126 and extends on at least one side at least to the lateral borders 24, 26 of the visor opening to the backward direction.
- the guiding device 128 extends substantially to the ears of the operator 10.
- the guiding device 128 forms a channel, in particular between the at least one second opening 126 and the backward end(s) 130 of the guiding device 128.
- the guiding device 128 is made of a soft fabric, for example cleanroom fabric provided for the gown as detailed here-above.
- FIG. 9 shows a further embodiment of a hood 4".
- the same features are designated with the same reference numbers as in the previous embodiments.
- the hood 4'" comprises an inhalation and exhalation device 140.
- the inhalation and exhalation device 140 has a mask portion 142, which has, for example, from the front, a substantially triangular shaped form.
- the mask portion 142 may be nose shaped.
- the mask portion 142 has at least one first opening 144 for intake air from the outside 16. Here, three openings are shown. However, also more or less first openings 144 may be provided.
- the mask portion may have at least one second opening 146 for expulse air from the inside 12, for example during exhaling.
- second opening 146 for expulse air from the inside 12, for example during exhaling.
- three openings are shown.
- more or less first openings 146 may be provided.
- Each first opening 144 includes at least one intake air one-way valve, for example the intake air one-way valves as described above with respect to Figures 6 or 7 .
- the intake air one-way valves are similar to gills.
- each second opening 146 comprises also an exhaust air one-way valve.
- the valve may be constructed as the intake air one-way valve.
- the exhaust air one-way valve may be as described above with respect to Figures 6 or 7 .
- the exhaust air one-way valves are similar to gills.
- the inhalation and exhalation device 140 includes a first guiding device 148 for guiding exhaled air from the at least one second opening 146 to the backward direction B.
- the guiding device 148 covers partly the front of the mask portion 142 at the at least one second opening 146 and extends on at least one side at least to the lateral borders 24, 26 of the visor opening to the backward direction.
- the guiding device 148 extends substantially to the ears of the operator 10.
- the guiding device 148 forms a channel, in particular between the at least one second opening 146 and the backward end(s) 150 of the guiding device 148.
- the inhalation and exhalation device 140 includes a second guiding device 152 for guiding intake air from outside 16 to the at least one first opening 144.
- the guiding device 152 covers partly the front of the mask portion 142 at the at least one first opening 146 and extends on at least one side at least to the lateral borders 24, 26 of the visor opening to the backward direction.
- the guiding device 152 extends substantially to the ears of the operator 10.
- the guiding device 142 forms a channel, in particular between the at least one first opening 144 and the backward end(s) 154 of the guiding device 152.
- the first guiding device 148 is arranged on a first side of the hood 4" and the second guiding device 152 is arranged on the opposite side of the hood with respect to the first guiding device 148.
- the first and second guiding device 148, 152 is made of a soft fabric, for example cleanroom fabric provided for the gown as detailed here-above.
- the first and second guiding devices 148, 152 are separated from each other, to avoid mixing intake air and exhaled air.
- first and the second guiding device 148, 152 may be made of a single fabric, whereas it is fixed, in particular sewed or glued along the central axis X-X to the mask portion 142.
- Figure 9 shows a seam 156 along the central axis X-X.
- the fabric may be also fixed at other portions to the mask portion 142.
- the inhalation and exhalation device is a passive inhalation and exhalation device.
- the inhaled air and the exhaled air is completely separated, in particular due to the guiding devices.
- the guiding devices guide the exhaled air to the backward direction B.
- the inhalation and exhalation device retrieves intake air for inhalation from a first direction, in particular in a front or first side direction, and to exhaust exhaled air in a second direction (B) being different of the front direction or first side direction, wherein the second direction may be a backward direction.
- the guiding devices are provided at the hood, in particular at the head or neck portion of the hood.
- the cleanroom fabric is made by cleanroom polyester filament fabric or any other material suitable for cleanroom use.
- the cleanroom polyester filament fabric can be with or without carbone.
- the visor 30 is fixed to the base body 8 by means of the following steps.
- the visor 30 In an initial configuration, the visor 30 is in its flat non constraint configuration and completely outside the fixing groove 54.
- the visor 30 is inserted either into the fixing groves 54, in particular by sliding the visor 30 through the insertion opening until the visor 30 abuts against the abutment 60 opposite the insertion opening.
- the visor 30 is bent around the axis X-X until the effective width of the visor 30 is smaller than the effective with of the abutments 60.
- the closing means if used, are closed or fastened.
- the visor 30 stays in the pre-stressed bent configuration against the abutments 60.
- the sliding direction of the visor 30 during insertion depends on the arrangement of the insertion opening, i.e. whether the insertion opening is on the left border 24, the right border 26 or on the top border 28 of the visor opening 18.
- the visor 30 is economic in manufacture and can be readily replaced if damaged.
- the one or more pressing devices 88 are fixed and tightened, such that the lower border 32 of the visor and thus the lower border 22 of the visor opening 18 and the sealing devices 66 are pressed against the cheeks of the operator 10 to isolate the visor 30 from the breathing air.
- the spacing element 62, the sealing devices 66, 67, 68 and/or the pressing device 88 enable to incline the visor 30 in an oblique direction with respect to a vertical direction V, when the operator holds his head upright, so that he has a comfortable view in the downward direction.
- these features reduce the risk of fog of the visor 30. It should be noted that these features may be used in all embodiments of the present even if it is not shown in Figure 5 , 8 and 9 .
- a rigid frame comprising fixed sealing devices or the combination of a flexible borders 22, 24, 26, 28 of the visor opening 18 and stretchable sealing devices 66, 67, 68, which are fixed at one border 66a, 67a, 68a, enable a reliable positioning of the visor on the face of the operator and to seal the visor against humid exhalation air.
- the at least one sealing device prevent that the humid air from the mouth or nose can penetrate the area between the eyes of the operator and the visor 30.
- the mouse and nose area is sealed from the eye and visor area and no fluid connection between the mouse and nose area and the eye and visor area.
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Description
- The present invention concerns a hood comprising a base body defining an outside and an inside adapted to receive a head of an operator, the base body having a visor opening having a lower border and an upper border and two lateral borders, wherein the hood includes a visor fixed in the visor opening, wherein the visor comprises a visor circumference with an upper border and a lower border, the lower border of the visor comprising a nose cut-out provided for a nose of the operator, as well as a corresponding cleanroom gown comprising such a hood.
-
FR 3 016 271 A1 - Cleanroom gowns are used in cleanrooms for protecting the object to be manipulated by an operator from dust and other microscopic particles carried by the operator. Example of cleanrooms are packaging facilities for medicine items and manufacturing plants for microelectronic products, such as microchips.
- The known cleanroom gowns comprise a hood having a visor opening. The visor is usually strapped around the head and is in the form of a goggle. The goggles are difficult to manipulate and tend to not seal the head completely off the outside.
- According to other known cleanroom gowns, for example as known from
EP 2 781 167 A1 - However, these kind of gowns and hoods have a reduced field of view and tend to fog up during usage. Further, operators have problems when looking downwards. Such kind of cleanroom gowns have a poor filtration of particles in front of the mouth. Additionally, a high CO2 concentration was detected within the hoods.
- Further, standards and guidelines are becoming more stringent for producers in sensible fields, in particular in the pharmaceutical industry. The pharmaceutical industry is continuously searching for ways to exclude human contamination in their production process and on/in their products.
- Object of the invention is to provide an improved hood, which has a high operational security and is comfortable to wear for an operator. It should ascertain a clear vision. Further, the hood should be easy to clean and economic.
- According to an aspect, a hood is provided according to
claim 1. - Further embodiments may include the following features, which may be combined in any technical feasible combination:
- the sealing device has a thickness of between 10mm and 70 cm, in particular between 20 and 50 mm;
- at least one first sealing device is arranged to seal the space between the lower border of the visor opening and a cheek of the operator, and/or wherein the at least one first sealing device extends between the nose cut-out and at least one lateral border of the visor opening and/or parallel to the lower border of the visor opening;
- each sealing device is elastically stretchable in a longitudinal direction, in particular in parallel to the respective border of the visor opening;
- a length of a stretched sealing device is at least 1,5 times greater, in particular at least 2 times greater than the length of the respective non-stretched sealing device;
- the hood further comprises at least one second sealing device arranged in parallel to at least one of the lateral borders of the visor opening and/or a third sealing device arranged at least in parallel to the upper border of the visor opening;
- the hood further comprises a releasable pressing device for pressing the lower border of the visor against the cheek of the operator, wherein, in particular, the pressing device is provided, at least in part, on the outside of the hood;
- one end of the pressing device fixed to the lower border of the visor opening, in particular to a backward end of a sealing device;
- the visor is releasably fixed to the base body by a fixing groove extending around the visor opening and adapted to receive the visor circumference;
- the lower border, the upper border and/or the two lateral borders of the visor opening are flexible;
- at least a central portion of the lower border, in particular all borders of the visor opening are rigid and/or comprise a rigid frame;
- the hood further comprises at least one spacing element adapted to hold the upper border of the visor in a predetermined distance from the forehead of the operator, wherein, in particular the predetermined distance is between 3 and 10 cm, wherein, in particular the at least one spacing element is adapted to be supported by at least one portion of the head of the operator and/or is rigid, in particular is a rigid ring, fixed to the base body;
- the hood defines a mouth and nose area at the mouth and nose openings of the operator and an eye and visor area at the eyes of the operator and the visor, wherein the at least one sealing device prevents a fluid connection between the mouth and nose area and the eye and visor area; and/or
- the visor is inclined in an oblique direction with respect to a vertical direction, when the operator holds his head upright.
- According to a further aspect, a cleanroom gown is provided comprises a body portion, arms, legs and a hood according to an embodiment disclosed herein.
- So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be read by reference to embodiments. The accompanying drawings relate to embodiments of the invention and are described in the following:
-
Figure 1 shows schematically a front view of a hood according to an embodiment of the invention; -
Figure 2 shows schematically a front view of a visor; -
Figure 3 shows schematically a sectional view according to lien A-A infigure 1 ; -
Figure 4 shows schematically a side view of a hood according to an embodiment of the invention; -
Figure 5 shows schematically a side view of an inhalation and exhalation device of a hood according to another embodiment of the invention; and -
Figure 6 shows a section Y-Y of an exhalation opening according to the embodiment ofFigure 5 -
Figure 7 shows a top view of an exhalation opening or one-way valve according to a further embodiment; -
Figure 8 shows another embodiment of a hood according to an embodiment of the invention; and -
Figure 9 shows a further embodiment of a hood according to an embodiment of the invention. -
Figure 1 shows schematically a front view of acleanroom gown 1 according to an embodiment of the invention. Thecleanroom gown 1 comprises abody portion 2 and ahood 4, as well asarms 6 and non-represented legs. - The
hood 4 comprises abase body 8. Thebase body 8 is preferably formed integrally with thebody portion 2 of the gown. Alternatively, thecleanroom gown 1 comprises abody portion 2 and ahood 4, whereby thehood 4 is separate, i.e. detached, from thebody portion 2. Still alternatively, thebody portion 2 is in the form of a coat. - The
hood 4 defines a hood central axis X-X, which extends substantially vertical or along the central axis of a head of anoperator 10, when the hood is used by the operator 10 (shown inFigure 4 ). - It should be noted that in the present invention the terms "above", "below", "upper", "lower", "central", "lateral", "top", "bottom", "horizontal", "vertical", "front" and "back" are used for defining the
hood 4 when being worn by theoperator 10 and in the perspective of theoperator 10, when the operator has his head in the upright position as shown inFigure 4 . In other words the front part of thehood 4 is in front of the face of theoperator 10 and the back part of thehood 4 is behind the head or the back of theoperator 10. - The
base body 8 confines aninside 12 adapted to receive ahead 14 of theoperator 10 and delimits the inside with respect to an outside 16 (seeFigures 3 and4 ). - The
base body 8 has also a visor opening 18. Thevisor opening 18 is substantially rectangular and extends in front of a region of the eyes of the operator when thehood 6 is worn. Thevisor opening 18 defines avisor opening circumference 20 comprising alower border 22, twolateral borders upper border 28. Thelateral borders lower border 22 to theupper border 28. - At least the
lower border 22, in particular allborders - In other embodiments, the
lower border 22, in particular allborders circumference 20 is rigid. For example, a rigid frame may be sewed, glued or otherwise fixed to thehood body 8 to theborders inside 12. In other words, the borders retain the shape of the visor opening without the inserted visor. In an embodiment, the rigid frame or reinforcing device comprises a rigid material frame, for example rigid plastic frame, directed to thevisor opening circumference 20 or theborders - The
hood 6 comprises furthermore avisor 30 and fixing means 31 adapted for releasably fixing thevisor 30 to thebase body 8 in thevisor opening 18. - As can be seen on
figure 2 , thevisor 30 is a transparent plate which is, in a non-constraint configuration, completely flat or plane. In other embodiments, thevisor 30 is in the non-constraint configuration rounded. The general shape of thevisor 30 is rectangular or trapezoidal with rounded corners. In particular thevisor 30 has alower border 32, anupper border 34 and twolateral borders lower border 32 to theupper border 34. According to an embodiment, the lateral borders 36, 38 are shorter than thelower border 32 and/or theupper border 34. - Further, the visor presents at its lower border 32 a concave nose cut out 40. The nose cut-out 40 and/or the
visor 30 are symmetrically to the central axis X-X. The nose cut out 20 extends over the nose 42 (seeFigure 4 ) of theoperator 10 when thehood 4 is worn. The nose cut-out 40 has a lengths L in direction of the central axis X-X. The nose cut-out 40 has a width W at alower end 44 in transversal direction. The transversal direction is orthogonal to the central axis X-X. The nose cut-out tapers from itslower end 44 to its upper end 46. In an embodiment, the width W is between 3 and 8 cm, for example about 6cm, and the length L is between 3 and 6 cm, for example about 4.5 cm. The nose cut-out has substantially the shape of a nose. The nose cut-out enables to isolate the visor from the hot, moisturized air coming from the mouth, though reducing condensation dramatically and brings the bottom orlower border 32 of thevisor 30 closer to the cheeks to further improve downward vision. - In another embodiment, the visor includes a nose bulge covering the nose, substantially the complete nasal bone, in particular down to the nose tip. The nose bulge extends to the front direction. In an embodiment, the nose bulge is open in downward direction to enable breathing through the nose. According to an embodiment, the nose bulge substantially conforms to the nose of the operator.
- According to an embodiment, the
visor 30 is provided with at least onefirst portion 48 of a fixing device 50 (see alsoFigure 4 ). For example, the at least onefirst portion 48 of the fixing device may be arranged on the central axis X-X at the upper end 46 of the nose cut-out 40. - In an embodiment, the at least one
first portion 48 of the fixingdevice 50 is arranged in a distance between 0.5 and 2 cm from an edge orcircumference 52 of thevisor 30. - The embodiment shown in
Figures 1, 2 and4 shows only onefixing device 50. In other embodiments, a plurality of fixingdevices 50 are arranged at the upper end 46 of the nose cut-out 40, for example symmetrically with respect to the central axis X-X. - In the embodiment of a nose bulge the fixing device is provided at the front and/or lower end of the nose bulge. The front end of the nose bulge is positioned close to the nose tip of the operator. In other embodiments, a plurality of fixing
devices 50 are arranged at the around the lower end of the nose bulge, for example symmetrically with respect to the central axis X-X. - The fixing
device 50 is provided to releasably fix thelower border 22 of thevisor opening 18, in particular a portion of thelower border 22, at the nose cut-out 40 or the nose bulge, to the visor, such thatlower border 22 of thevisor opening 18 follows closely the edge orcircumference 52 of thevisor 30. Without the fixingdevice 50, there would be an opening between thelower border 22 of the visor opening and the upper end 46 of the nose cut-out 40 or the front end of the nose bulge. - For example, the fixing
device 50 is a pressure button, a press snap button, a zip fastener and/or a hook and loop fastener (Velcro fastener). In another embodiment a (single) metal hook/lace fastener or metal hook/loop fastener. Instead of metal another rigid material may be used. In some embodiments, thefirst portion 48 of the fixingdevice 50 is a lower or upper portion of the pressure button, the lower or upper portion of press snap button and/or a hook portion or a loop portion of a hook and loop fastener. In other embodiments, thefirst portion 48 of the fixingdevice 50 is an opening through which the other portions of the fixing 50 device are connected. - In other embodiments, the
lower border 22 is provided with a rigid nose frame sewed, glued or otherwise fixed to thebase body 8. The rigid nose frame retains its shape in a non-constraint configuration, for example when the visor is not inserted into the visor opening. For example the rigid nose frame is substantially V-shaped (upside down) in a front view. It corresponds substantially to the nose cut-out of thevisor 30. In such a case only the central portion of thelower border 22 of thevisor opening 18 is rigid. The rigid nose frame may be constructed as the rigid frame described here-above. - The
visor 30 is integrally made, in particular in one piece, from plastic such as polycarbonate. Alternatively, thevisor 30 is made from any other material usable for cleanroom use. Thevisor 30 is flexible and can be bent elastically into a concave shape. For example, thevisor 30 is an anti-fog visor and may contain an anti-fog coating on the inner side. - The fixing means 31 are adapted to fix the
visor 30 to thebase body 8 substantially along thevisor circumference 22 and in particular substantially along thecomplete visor circumference 22. The fixing means 31 are adapted to fix thevisor 30 to thebase body 8 along substantially the wholevisor opening circumference 20. In other words, thevisor 30 is held in place by the clean room fabric of thehood 4. - As it can be seen in
Figure 3 , to this end, the fixing means 31 comprise a fixing groove 54 extending around thevisor opening 18 and adapted to receive thevisor circumference 52, in particular adapted to receive thewhole visor circumference 52. In an embodiment, the fixing groove may be formed by a reinforced fabric or is provided by the rigid frame and/or therigid borders - The fixing groove 54 has an upper fixing groove part 56, a lower fixing groove part 58, and two lateral side fixing groove parts (not shown).
- In an embodiment, the fixing means 31 define an insertion opening (no shown) and closing means or fastening means adapted to close the insertion opening. In the fastened state of the closing means, the insertion opening is closed and forms part of the fixing groove. For example, the closing means comprise press snap buttons. Alternatively or complementary, the closing means can comprise a zipper and/or a hook-and-loop fastener or any other closing means that can be closed and re-opened in a nondestructive and reversible manner.
- For example, the insertion opening and the closing means are arranged on a
lateral border visor opening 18 and extend substantially parallel to the hood central axis X-X. In other embodiments, the insertion opening may be provided at theupper border 28 of the visor opening and extend in traverse direction to the hood central axis X-X. - The fixing means 31 are adapted to allow an insertion and/or retraction of the
visor 30 into/from the position in which thevisor 30 is fixed to thebase body 8 over thevisor opening 18 by sliding. When the closing means are unfastened, the insertion opening is open and thevisor 30 is insertable through the insertion opening into the fixing groove 54 by a sliding movement. - In other embodiments, the
visor 30 is inserted from the interior of thevisor opening 18 and subsequently hold in place when closing the fixingdevice 50. - In an embodiment, both, the interior portion of the groove and the exterior border of the groove are provided with second and third portions of the fixing
device 50. For example, the exterior border of the groove is provided with the hooks (second portion) of a hook and loop fastener and the interior border of the groove 54 is provided with the loops (third portion) of the hook and loop fastener. The second portion and the third portion of the fixing device is then connected through an opening of the visor that forms, as described above, the first portion of the fixingdevice 50. - According to an embodiment, the
base body 8 comprisesabutments 60 for thevisor 30. Theabutments 60 are adapted to maintain thevisor 30 in a pre-stressed bent configuration around the central axis X-X when the fixing means 31 fix the visor to thebase body 8. In this bent configuration, thevisor 30 is essentially in a part cylindrical shape. Theabutments 60 are generally defined by the bottom of the fixing groove 54 at the lateral borders 24, 26 of thevisor opening 18. In case a closing means is provided at alateral border abutment 60. The twoabutments 60 are spaced apart with an effective width, which is smaller than an effective width of thevisor 30 when in the non-constraint configuration. - Further, the hood is provided with a
spacing element 62 adapted to hold theupper border 34 of thevisor 30 in a predetermined distance from theforehead 64 of theuser 10 of thehood 4. The spacing element is provided as arigid ring 62, which is fixed or integrated into thebase body 8 of thehood 4. In other embodiments, thespacing element 62 may be a portion of a ring or rod shaped. Thering 62 is fixed to thebase body 8 of thehood 4, such that it extends in a substantial horizontal plane P, when the operator holds his head in an upright position. For example, the substantial horizontal plane P is provided above the eye height of the operator. In other embodiments thering 62 is provided in an inclined position, such that afront portion 65 of thering 62 is above the eye height of theoperator 10. In other words, thefront portion 65 of the spacing element is a fixed relationship with theupper border 34 of thevisor 30. For example, thefront portion 65 of thespacing element 62 is connected to the interior of thebase body 8 at theupper border 28 or adjacent to theupper border 28 of thevisor opening 18. - Thus, the
spacing element 62 enables to incline thevisor 30 in an oblique direction with respect to a vertical direction V, when the operator holds his head upright. For example the angle α between a vertical direction V and the visor at the central axis X-X is between 25 and 60 degrees, in particular between 30 and 50 degrees. - The
front portion 65 of thespacing element 62 or theupper border 34 of thevisor 30, thelower border 32 of thevisor 30 supported by the cheeks of the operator and a rigidity of the visor enables a substantially stationary placement of the visor with respect face of the operator, in particular when thelower border 32 of thevisor 30 is pressed on the cheeks. - The
spacing element 62 enables to create space between thevisor 30 and theforehead 64 to wear glasses. Further, it is possible to press the visor on the cheeks at theirlower border 32 to further extend downward vision by limiting the distance between the cheeks and the visor. For example the space between theforehead 64 of theoperator 10 and theupper border 34 of thevisor 30 is between 3 and 10 cm, in particular between 4 and 7 cm. The distance between the cheek of the operator and thelower border 32 is between 0 and 4cm, in particular below 1,5 cm. In particular the distance between theforehead 64 of the operator and theupper border 34 of thevisor 30 is greater than the distance between the cheek of the operator and thelower border 32 of thevisor 30. - In another embodiment, the
spacing element 62 is supported by ears of theoperator 10. In other words, thespacing element 62 may be supported by the head of theoperator 10 either directly, when supported by the ears, or indirectly, like shown in the figures, where the top of the head of the operator is in abutment relationship with the interior of thebase body 8 to which thespacing element 62 is fixed. For example, thespacing element 62 is provided in an envelope in thehood body 8 or fixed with rings thereto. - According to an embodiment, the hood comprises on the interior side of the
base body 8 at thelower border 22 of thevisor opening 18 at least onefirst sealing device 66. It is provided to seal a possible gap between thelower border 22 of thevisor opening 18 and the cheek of theoperator 10. The sealingdevices 66 extend, on both sides of the nose cut-out, between the nose cut-out 40, when provided into thevisor opening 18, and the respectivelateral borders visor opening 18. In other embodiments, the sealingdevices 66 extend almost to the ears of the operator. According to some embodiments, the sealing devices extend substantially to the upper end of the nose cut-out. In some embodiments, the first sealing devices are arranged in a curved shaped, having an angle at thelower end 44 of the nose-cut-out. In other words, the first sealing devices follow, respectively on both sides of the nose cut-out 40, thelower border 32 of thevisor 30 and/or the lower border of thevisor opening 18. Thus, the hot moisturized air coming from the mouth and nose is isolated from the visor. The sealing devices extend similarly on both sides of the nose bulge in another embodiment. - In an embodiment, the
first sealing devices 66 extend in a substantially horizontal direction. - According to an embodiment, at least one
second sealing device 67, extends along the lateral borders 24, 26 of the visor opening, in particular on the interior side of thebase body 8. For example the at least onesecond sealing device 67 extends in a substantially vertical direction. - In a further embodiment, which may be combined with other embodiments enclosed herewith, at least one
third sealing device 68 extends along the top or in the front of theforehead 64 of theoperator 10, in particular on the interior side of thebase body 8. Thethird sealing device 68 extends substantially in a horizontal direction or plane and follows the contour of the forehead of theoperator 10. - According to an embodiment, the
first sealing devices 66 are arranged between 0 and 3cm away from thelower border 22 of the visor opening, the second sealing devices are arranged between 0 and 6cm away from the lateral borders 24, 26 of the visor opening and thethird sealing device 68 is arranged between 3cm and 10cm away from theupper border 28 of the visor opening. - Each sealing
device first border second border Figure 4 . In other words, for thefirst sealing device 67, the longitudinal direction is, on the cheeks, substantially horizontal and parallel to thelower border 22 of thevisor opening 18, for thesecond sealing device 68, the longitudinal direction is substantially parallel to the vertical direction and/or to thelateral border 26 of thevisor opening 18. The longitudinal direction of thethird sealing device 68 is nearly parallel to the longitudinal direction of thefirst sealing device 67 and/or parallel to theupper border 28 of thevisor opening 18. - In some embodiments, the at least one first, second and
third sealing devices 66 is/are a ribbing stretched fabric, for example like at the cuffs of a sweatshirt. According to an embodiment, the sealing devices stretches in its longitudinal direction, for example the at least onefirst sealing device 66 stretches in horizontal direction, the at least onesecond sealing device 67 stretches in vertical direction, and/or the at least onethird sealing device 68 stretches horizontal direction. In an embodiment, a length of the stretched first, second and/or third sealing devices is at least 2 times greater, in particular at least 1.5 greater than the length of the respective non-stretched first, second and/or third sealing devices. When not forced in a stretched state, the at least first, second and/orthird sealing devices - In some embodiments, the sealing
devices - The sealing
devices visor 30 between 10 mm and 70 mm, in particular between 20 and 50 mm. In an embodiment, the at least one first, second and/orthird sealing devices base body 8. For example, the sealingdevices first border base body 8. For example, each of the sealing devices is fixed, in particular is only fixed, the one of theirborders visor opening 18, and, in particular is not fixed at the respectiveother border devices base body 8. The fixing enables a movement of thesecond border base body 8, to a second position, where thesecond border operator 10. - According to an embodiment, the first second and third sealing devices are fabricated from polyester.
- The at least one first, second and/or
third sealing devices hood 4, in particular without the need for the operator to touch the hood except for the pressing devices as explained below. According to an embodiment, the first, second and/or third sealing devices increase the comfort for the operator. - According to other embodiments, in particular in case of a rigid visor opening borders 22, 24, 26, 28, or the usage of a rigid frame at the
borders visor opening 18, the sealingdevices borders base body 8. In others, the sealingdevices visor opening circumference 20 or theborders lower borders 22 of the visor opening, in particular allborders - Further, the hood comprises an inhalation and
exhalation device 70. The inhalation andexhalation device 70 has amask portion 72, which has, for example, from the front, a substantially diamond shaped form. The mask portion is made of fabric and may be part of thehood body 8. Themask portion 72 is for example a mouth and nose piece of the inhalation andexhalation device 70. Theupper portion 74 is adapted to the nose cut-out 40 or the nose bulge of thevisor 30. Themask portion 72 has anouter circumference 76, which is sewed, glued or otherwise fixed to thebase body 8. - The
mask 72 comprises at least one opening, namely at least onefirst opening 80 for intake air from the outside 16. - In some embodiments, the mask portion may have at least one
second opening 82 for expulse air from the inside 12, for example during exhaling. For example, in case themask portion 72 has nosecond opening 82 for expulsing air from the inside, the air will be slowly expulsed through the fabric of the gown. - The embodiment shown in
Figures 1 and4 shows onefirst opening 80 and onesecond opening 82. However, in other embodiments also two or morefirst openings 80 and two or moresecond openings 82 may be provided. - Each
first opening 80 includes at least one intake air one-way valve. For example, each valve comprise an outer part and an inner part, each having a diameter being greater than the diameter of therespective opening mask portion 72. In this case the intake air one-way valve is a rigid, plastic device. - Thus, the operator may inhale air from the outside 16 without effort. In this embodiment, the intake air is not filtered. Further, dirty air from the operators mouth and nose is prevented to exit via the at least one
first opening 80. Thus, a CO2 level inside thehood 4 is lowered thanks to the intake of fresh air. - In an embodiment, which may be combined with other embodiments disclosed herein, each
second opening 82 comprises also an exhaust air one-way valve. The valve may be constructed as the intake air one-way valve and functions just vice-versa. - Further, the inhalation and
exhalation device 70 comprises afiltering device 84, in particular for filtering the exhaled air of theoperator 10. Thefiltering device 84 is placed, according to an embodiment, on the back of theoperator 10. In other embodiments it may be placed at another position, for example at the back of the head. - In another embodiment, the gown and/or hood, which is made of filtering cleanroom fabric can act as a filtering for the exhalation air. In this case, the at least one second,
exhalation opening 82 is optional. - The
filtering device 84 filters the exhaled air or exhaust air and directs the filtered exhaust air in the backward direction B of the operator. The filtering device may be produced of the cleanroom fabric of the gown, which filters above 95% of the particles, in particular above 99% of the particles, for example about 99,8% of the particles exhaled by theoperator 10. For example particles greater than 1 micron, in particular greater than 0.5 microns are filtered. - In
Figure 4 , thefiltering device 84 is formed as an air buffer or pocket of cleanroom fabric for a slow filtration. - The inhalation and
exhalation device 70 enables to prevent the exhale the air to the front of the operator. - The
filtering device 84 is connected with at least onetubing 86 to at least onesecond opening 82, in particular allsecond openings 82. The at least one tubing is for example made of a soft cleanroom fabric as thefiltering device 84. In other embodiments, the at least one tubing is air tight. Thus, the exhaled air is effectively directed to thefiltering device 84. - This arrangement enables to isolate the hot moisturized air from the rest of the
hood 4 by channeling the exhaled air to thefiltering device 84, for example the air pocket, which is made of highly filtering fabric and located at the back of thehood 4 to minimize perturbations of the working area of the worker. Additionally, a further isolation is provided between the moisturized air and thevisor 30. Further, it provides better comfort to the operator by isolating hot moisturized air outside of thehood 4 and it lowers the CO2 level by isolating CO2 charged air, outside of the coverall where operator breath. - According to an embodiment, on each lateral border and/or the
lower border 22 of thevisor opening 18 and/or thevisor 30, in particular at least at one corner between the lateral border and the lower border, apressing device 88, in particular an end of the pressing device, is provided. For example the pressing device is in form of laces. The twolaces 88 are connected to each other at the back of theneck 90 or thehead 14 of theoperator 10. In other embodiments, the two laces are connected on the side of theneck 90 or thehead 14. At that place the length of thelaces 88 is adjusted. In further embodiments, only asingle lace 88 is used. - The one or more
pressing devices 88 are provided outside ofbase body 8 or thehood 4. In particular, the completepressing devices 88 are provided outside of thebase body 8 or thehood 4. - According to an embodiment, which may be combined with other embodiments disclosed herein, the at least one
pressing device 88 may be connected to thebackward end 89 of the at least onefirst sealing devices 66. In other words, the front ends of the at least onepressing device 88 are connected to the back ends of the at least onefirst sealing devices 66. - According to a further embodiment, on each lateral side of the
mask portion 72 thepressing devices 88 are provided. For example the pressing device is in form of laces fixed to themask portion 72. - In particular, when the operator fixes the
pressing device 88 around his head, thesecond border hood body 8, to their second position, wheresecond border operator 10. Thus, a good sealing and positioning of the visor is achieved. - According to an embodiment, the
upper portion 74 of themask 72 and thelower border 32 of thevisor 30 are arranged adjacent to each other in the hood. In other words, they are connected via thebase body 8, in particular via (reinforced) parts of thebase body 8 forming the grooves 54 for thecircumference 52 of the visor and thecircumference 76 of themask portion 72. In other words, thelower border 32 of the visor and theupper portion 74 of themask portion 72 are in a fixed relationship to each other. - When the
mask portion 72 is pulled in backward direction by thepressing device 88, for example by tightening the one ormore laces 88, thelower border 32 of thevisor 30 is pushed against the cheek of theoperator 10. Thus, an enhanced sealing between themask 72 and the cheek of theoperator 10 is provided. Hence, the at least onepressing device 88 allow a better positioning of the mask or inhalation andexhalation device 70 and thevisor 30. Further, the one or morepressing devices 88 enable a better sealing between hot moisturized air and thevisor 30 to prevent condensation. - According to an embodiment, the inhalation and
exhalation device 70 is a passive inhalation and exhalation device. -
Figure 4 shows further apocket 92 filled with a water absorbing material, for example salt, in particular a silica gel. Thepocket 92 and/or the water absorbing material is fixed to the interior of thebase body 8. According to an embodiment, the water absorbing material and/or the pocket is fixed adjacent to or on theborders visor opening 18. In the example shown inFigure 4 , thepocket 94 is fixed adjacent to theupper border 28 of the visor opening. In other embodiments, the water absorbing material, for example in apocket 92, may be attached to underwear, i.e. the cloths inside thegown 1, of theoperator 10. The water absorbing material thus further limits condensation on the visor. - Thus, the
hood 6 has an ergonomic shape and is comfortable to wear and reduces the contamination of products to be manufactures with particles of the body of an operator. -
Figure 5 shows another embodiment of the inhalation andexhalation device 94 of a hood 4'. The same features are designated with the same reference numbers as in the previous embodiments. - The hood 4' comprises an inhalation and
exhalation device 94, which is provided at the front portion of thebase body 8. The inhalation and exhalation device includes amask portion 96. For example, as shown inFigure 5 , themask portion 96 has substantially the shape of a triangle and is placed below the nose cut-out of thevisor 30. Themask portion 96 may be an opening. In other embodiments, the mask portion may be a fabric of a gas material, which leaves air though easily. The mask portion may be sewed, glued or otherwise fixed to thebase body 8 of the hood 4'. The gas material provides a reduced filtering. - Further, the inhalation and
exhalation device 94 comprises guidingdevice 98. The guidingdevice 98 guides the exhaled air to the backward direction B. The guidingdevice 98 covers completely the front of themask portion 98 and extends on at least one side at least to the lateral borders 24, 26 of the visor opening to the backward direction. In some embodiments, the guidingdevice 98 extends substantially to the ears of theoperator 10. For example, the guidingdevice 98 forms a channel, in particular betweenmask portion 96 and the backward end(s) 100 of the guidingdevice 98. - In an embodiment, the guiding
device 98 is made of a soft fabric, for example cleanroom fabric provided for the gown as detailed here-above. In other words, themask portion 96 is covered loosely by the guidingdevice 98. - In another embodiment, the at least one intake air one way valve, and/or the at least one exhaust air one-way valve, may be provided with fabric as shown in
figures 6. Figure 6 shows a section through a portion of afabric 102. The valves are therefore gill shaped. Each valve include one ormore openings 104 in form a slit, which is covered with a respective fabric portion 106 on one side of thefabric 102. Thus, a one way valve is provided. In other words, the air may pass only in the direction of the arrow through the slit openings. -
Figure 7 shows a further embodiment of a one way valve that may be used as an intake air one way valve and/or exhaust air one-way valve provided in a portion of afabric 108. For example the fabric may be a cleanroom fabric. The fabric is provided with at least oneopening 110.Figure 7 shows a rectangular opening. However, theopening 110 may also have other forms, for example it may be circular, oval, hexagonal or the like. The at least one opening is covered with asheet 112 of fabric having a surface which extends beyond the borders of the at least oneopening 110. For example, thesheet 112 covers the at least oneopening 110. For example, in case of a plurality of openings, thesheet 112 may cover all of them. - In
figure 7 arectangular sheet 112 is shown. However, thesheet 112 may also have other forms, for example circular, oval, hexagonal or the like. Thesheet 112 is fixed to thefabric 6 in at least two, in particular three directions. In other words, thesheet 112 has fourborders 114a to 114d, wherein threeborders 114a to 114c are fixed to thefabric 108, for example by sewing, gluing or the like. Thefourth border 114d is not fixed to thefabric 108. Thus, air may pass only in one direction through theopening 110. - In an embodiment, the
sheet 112 is made of cleanroom fabric. -
Figure 8 shows a further embodiment of ahood 4". The same features are designated with the same reference numbers as in the previous embodiments. Thehood 4" shows a variant of the embodiment ofFigure 4 . Further, the hood comprises an inhalation andexhalation device 120. The inhalation andexhalation device 120 has amask portion 122, which has, for example, from the front, a substantially triangular shaped form. Themask portion 122 has at least onefirst opening 124 for intake air from the outside 16. - Further, the mask portion may have at least one
second opening 126 for expulse air from the inside 12, for example during exhaling. The embodiment shown inFigure 8 shows onefirst opening 124 and onesecond opening 126. However, in other embodiments also two or morefirst openings 124 and two or moresecond openings 126 may be provided. - Each
first opening 124 includes at least one intake air one-way valve, for example the intake air one-way valves as described above with respect toFigures 4 ,6 or 7 . - In an embodiment, which may be combined with other embodiments disclosed herein, each
second opening 126 comprises also an exhaust air one-way valve. The valve may be constructed as the intake air one-way valve. - Further, the inhalation and
exhalation device 120 includes aguiding device 128 for guiding exhaled air from the at least onesecond opening 126 to the backward direction B. The guidingdevice 128 covers partly the front of themask portion 122 at the at least onesecond opening 126 and extends on at least one side at least to the lateral borders 24, 26 of the visor opening to the backward direction. In some embodiments, the guidingdevice 128 extends substantially to the ears of theoperator 10. For example, the guidingdevice 128 forms a channel, in particular between the at least onesecond opening 126 and the backward end(s) 130 of the guidingdevice 128. - In an embodiment, the guiding
device 128 is made of a soft fabric, for example cleanroom fabric provided for the gown as detailed here-above. -
Figure 9 shows a further embodiment of ahood 4". The same features are designated with the same reference numbers as in the previous embodiments. The hood 4'" comprises an inhalation andexhalation device 140. The inhalation andexhalation device 140 has amask portion 142, which has, for example, from the front, a substantially triangular shaped form. For example, themask portion 142 may be nose shaped. - The
mask portion 142 has at least onefirst opening 144 for intake air from the outside 16. Here, three openings are shown. However, also more or lessfirst openings 144 may be provided. - Further, the mask portion may have at least one
second opening 146 for expulse air from the inside 12, for example during exhaling. Here, three openings are shown. However, also more or lessfirst openings 146 may be provided. - Each
first opening 144 includes at least one intake air one-way valve, for example the intake air one-way valves as described above with respect toFigures 6 or 7 . In other words, the intake air one-way valves are similar to gills. - In an embodiment, which may be combined with other embodiments disclosed herein, each
second opening 146 comprises also an exhaust air one-way valve. The valve may be constructed as the intake air one-way valve. In other words, the exhaust air one-way valve may be as described above with respect toFigures 6 or 7 . In other words, the exhaust air one-way valves are similar to gills. - In an embodiment, the inhalation and
exhalation device 140 includes afirst guiding device 148 for guiding exhaled air from the at least onesecond opening 146 to the backward direction B. The guidingdevice 148 covers partly the front of themask portion 142 at the at least onesecond opening 146 and extends on at least one side at least to the lateral borders 24, 26 of the visor opening to the backward direction. In some embodiments, the guidingdevice 148 extends substantially to the ears of theoperator 10. For example, the guidingdevice 148 forms a channel, in particular between the at least onesecond opening 146 and the backward end(s) 150 of the guidingdevice 148. - According to an embodiment, the inhalation and
exhalation device 140 includes asecond guiding device 152 for guiding intake air from outside 16 to the at least onefirst opening 144. The guidingdevice 152 covers partly the front of themask portion 142 at the at least onefirst opening 146 and extends on at least one side at least to the lateral borders 24, 26 of the visor opening to the backward direction. - In some embodiments, the guiding
device 152 extends substantially to the ears of theoperator 10. For example, the guidingdevice 142 forms a channel, in particular between the at least onefirst opening 144 and the backward end(s) 154 of the guidingdevice 152. - According to an embodiment the
first guiding device 148 is arranged on a first side of thehood 4" and thesecond guiding device 152 is arranged on the opposite side of the hood with respect to thefirst guiding device 148. - In an embodiment, the first and
second guiding device - According to an embodiment, the first and
second guiding devices - For example, the first and the
second guiding device mask portion 142.Figure 9 shows aseam 156 along the central axis X-X. Of course, the fabric may be also fixed at other portions to themask portion 142. - According to an embodiment, the inhalation and exhalation device is a passive inhalation and exhalation device.
- According to embodiments disclosed herein, the inhaled air and the exhaled air is completely separated, in particular due to the guiding devices. For example, the guiding devices guide the exhaled air to the backward direction B. The inhalation and exhalation device retrieves intake air for inhalation from a first direction, in particular in a front or first side direction, and to exhaust exhaled air in a second direction (B) being different of the front direction or first side direction, wherein the second direction may be a backward direction.
- In some embodiments disclosed herein, the guiding devices are provided at the hood, in particular at the head or neck portion of the hood.
- The cleanroom fabric is made by cleanroom polyester filament fabric or any other material suitable for cleanroom use. The cleanroom polyester filament fabric can be with or without carbone.
- In the following the usage of the
hood 4, 4' is explained. - In case, the visor has to be inserted via an insertion opening by sliding into the visor opening, the
visor 30 is fixed to thebase body 8 by means of the following steps. In an initial configuration, thevisor 30 is in its flat non constraint configuration and completely outside the fixing groove 54. Thevisor 30 is inserted either into the fixing groves 54, in particular by sliding thevisor 30 through the insertion opening until thevisor 30 abuts against theabutment 60 opposite the insertion opening. Thevisor 30 is bent around the axis X-X until the effective width of thevisor 30 is smaller than the effective with of theabutments 60. In this configuration of thevisor 30, the closing means, if used, are closed or fastened. - Then the
visor 30 stays in the pre-stressed bent configuration against theabutments 60. - The sliding direction of the
visor 30 during insertion depends on the arrangement of the insertion opening, i.e. whether the insertion opening is on theleft border 24, theright border 26 or on thetop border 28 of thevisor opening 18. Thevisor 30 is economic in manufacture and can be readily replaced if damaged. - In other embodiments, it is not necessary to provide an insertion opening for inserting the visor.
- Then the one or more
pressing devices 88 are fixed and tightened, such that thelower border 32 of the visor and thus thelower border 22 of thevisor opening 18 and thesealing devices 66 are pressed against the cheeks of theoperator 10 to isolate thevisor 30 from the breathing air. - Thus, the
spacing element 62, the sealingdevices pressing device 88 enable to incline thevisor 30 in an oblique direction with respect to a vertical direction V, when the operator holds his head upright, so that he has a comfortable view in the downward direction. At the same time, these features reduce the risk of fog of thevisor 30. It should be noted that these features may be used in all embodiments of the present even if it is not shown inFigure 5 ,8 and 9 . - In particular the combination of a rigid frame comprising fixed sealing devices or the combination of a
flexible borders visor opening 18 andstretchable sealing devices border - The at least one sealing device, in particular the at least one first sealing devices prevent that the humid air from the mouth or nose can penetrate the area between the eyes of the operator and the
visor 30. In other words, the mouse and nose area is sealed from the eye and visor area and no fluid connection between the mouse and nose area and the eye and visor area. - Thus, there is also enough place within the hood for the operator to wear glasses.
- Thus, the products manipulated by the operator are better protected against particles emitted from the operator.
Claims (14)
- Hood (4, 4', 4", 4"') for a cleanroom gown (1), the hood comprising a base body (8) defining an outside (16) and an inside (12) adapted to receive a head of an operator (10), the base body having a visor opening (18) having a lower border (22) and an upper border (28) and two lateral borders (24, 26), wherein the hood includes a visor (30) fixed in the visor opening (18), wherein the visor comprises a visor circumference (52) with an upper border (34) and a lower border (32), the lower border (32) of the visor (30) comprising a nose cut-out (40) or a nose bulge provided for a nose of the operator (10), characterized in that the hood further comprises at least one sealing device (66, 67, 68) adapted to seal a space between at least one of the borders (22, 24, 26, 28) of the visor opening (18) and a portion of the face of the operator (10) and to position the visor (30) on the operator (10), characterized in that each sealing device (66, 67, 68) has a first border (66a, 67a, 68a) directed away from the visor opening (18) and a second border (66b, 67b, 68b) directed towards the visor opening, wherein the second border (66b, 67b, 68b) is movable between a first position in contact to the base body (8) and a second position away from the base body (8).
- Hood according to claim 1, wherein the sealing device has a thickness of between 10mm and 70 cm, in particular between 20 and 50 mm.
- Hood for a cleanroom gown according to claim 1 or 2, wherein at least one first sealing device is arranged to seal the space between the lower border (22) of the visor opening (18) and a cheek of the operator (10), and/or wherein the at least one first sealing device extends between the nose cut-out (40) or the nose bulge and at least one lateral border (24, 26) of the visor opening (18) and/or parallel to the lower border (22) of the visor opening.
- Hood for a cleanroom gown according to any one of the preceding claims, wherein each sealing device (66, 67, 68) is elastically stretchable in a longitudinal direction, in particular in parallel to the respective border (22, 24, 26, 28) of the visor opening.
- Hood for a cleanroom gown according to claim 4, wherein a length of a stretched sealing device is at least 1,5 times greater, in particular at least 2 times greater than the length of the respective non-stretched sealing device.
- Hood for a cleanroom gown according to any one of the preceding claims, further comprising at least one second sealing device (67) arranged in parallel to at least one of the lateral borders (24, 26) of the visor opening and/or a third sealing device (68) arranged at least in parallel to the upper border (28) of the visor opening.
- Hood for a cleanroom gown according to any one of the preceding claims, further comprising a releasable pressing device (88) for pressing the lower border (32) of the visor (30) against the cheek of the operator (10), wherein, in particular, the pressing device is provided, at least in part, on the outside (16) of the hood.
- Hood for a cleanroom gown according to claim 7, wherein one end of the pressing device (88) fixed to the lower border (22) of the visor opening, in particular to a backward end of a sealing device (66).
- Hood for a cleanroom gown according to any one of the preceding claims, wherein the visor (30) is releasably fixed to the base body by a fixing groove (54) extending around the visor opening (18) and adapted to receive the visor circumference (52).
- Hood for a cleanroom gown according to any one of the preceding claims, wherein the lower border (22), the upper border (28) and/or the two lateral borders (24, 26) of the visor opening (18) are flexible.
- Hood for a cleanroom gown according to any one of the preceding claims 1 to 8, wherein at least a central portion of the lower border (22), in particular all borders (22, 24, 26, 28) of the visor opening (18) are rigid and/or comprise a rigid frame.
- Hood for a cleanroom gown according to any one of the preceding claims, further comprising at least one spacing element (62) adapted to hold the upper border (34) of the visor in a predetermined distance from the forehead of the operator (10), wherein, in particular the predetermined distance is between 3 and 10 cm, wherein, in particular the at least one spacing element (62) is adapted to be supported by at least one portion of the head of the operator (10) and/or is rigid, in particular is a rigid ring, fixed to the base body (8).
- Hood for a cleanroom gown according to any one of the preceding claims, defining a mouth and nose area at the mouth and nose openings of the operator (10) and an eye and visor area at the eyes of the operator and the visor (30), wherein the at least one sealing device (66, 67, 68) prevents a fluid connection between the mouth and nose area and the eye and visor area.
- Hood for a cleanroom gown according to any one of the preceding claims, wherein the visor (30) is inclined in an oblique direction with respect to a vertical direction (V), when the operator (10) holds his head upright.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15306593.3A EP3153044B1 (en) | 2015-10-08 | 2015-10-08 | Hood for cleanroom gown and clean room gown |
DK15306593.3T DK3153044T3 (en) | 2015-10-08 | 2015-10-08 | CUT FOR CLEANING CLEANING AND CLEANING CLEANING |
PL15306593T PL3153044T3 (en) | 2015-10-08 | 2015-10-08 | Hood for cleanroom gown and clean room gown |
HRP20181298TT HRP20181298T1 (en) | 2015-10-08 | 2018-08-09 | Hood for cleanroom gown and clean room gown |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15306593.3A EP3153044B1 (en) | 2015-10-08 | 2015-10-08 | Hood for cleanroom gown and clean room gown |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3153044A1 EP3153044A1 (en) | 2017-04-12 |
EP3153044B1 true EP3153044B1 (en) | 2018-05-23 |
Family
ID=54292760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15306593.3A Active EP3153044B1 (en) | 2015-10-08 | 2015-10-08 | Hood for cleanroom gown and clean room gown |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3153044B1 (en) |
DK (1) | DK3153044T3 (en) |
HR (1) | HRP20181298T1 (en) |
PL (1) | PL3153044T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112586817B (en) * | 2021-01-25 | 2023-12-05 | 丰都县疾病预防控制中心(丰都县健康教育中心) | Epidemic prevention is used for top of head air inlet type face guard of medical surgical mask as filter core |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4764990A (en) * | 1986-12-31 | 1988-08-23 | Markert Allan R | Ventilated face shield |
EP2781167B1 (en) | 2013-03-22 | 2020-05-13 | Initial | Hood for cleanroom gown and corresponding cleanroom gown |
FR3016271B1 (en) * | 2014-01-14 | 2016-01-29 | Elis | ASSEMBLY FOR WHITE ROOMS WITH HOOD OR COMBINATION WITH INTEGRATED GLASSES |
-
2015
- 2015-10-08 PL PL15306593T patent/PL3153044T3/en unknown
- 2015-10-08 DK DK15306593.3T patent/DK3153044T3/en active
- 2015-10-08 EP EP15306593.3A patent/EP3153044B1/en active Active
-
2018
- 2018-08-09 HR HRP20181298TT patent/HRP20181298T1/en unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP3153044A1 (en) | 2017-04-12 |
PL3153044T3 (en) | 2018-11-30 |
DK3153044T3 (en) | 2018-08-20 |
HRP20181298T1 (en) | 2018-10-05 |
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