JP2023010300A - work hood - Google Patents

Abstract

To provide a work hood capable of suppressing a temperature rise inside a hood body.SOLUTION: A work hood 10 includes: a hood body 14 for covering a head and a neck of a worker; a belt 29 which is provided in the hood body 14 and is attached to and removed from a helmet which is put on the head; an attaching hole penetrating the hood body 14 in a thickness direction; and a blower fan 15 which is attached to the attaching hole, and sends air outside the hood body 14 into the hood body 14 when the hood body 14 covers the head and the neck.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a work hood that covers the back of the head, neck, etc. of a worker when performing welding work or metal polishing work.

An example of a work hood that covers the back of the head, neck, etc. of a worker performing various tasks is described in Patent Document 1. The work hood disclosed in Patent Document 1 includes a hood body covering the head and neck, and a face guard provided on the hood body. Further, the hood body has an opening through which the face can be seen, and the face guards are provided across the left and right sides of the opening of the hood body. Further, the hood body has a neck guard, and the neck guard can be opened and closed at the central portion by a fastener such as a snap button. The face guard covers the area except around the eyes and around the nose and mouth. Patent Literature 1 describes that it is possible to reliably prevent facial burns, fine cuts, and the like.

Japanese Patent No. 6230745

The inventors of the present application have found that the work hood described in Patent Document 1 covers the entire head, neck, etc., so air tends to be trapped inside the hood body, and the temperature inside the hood body rises. recognized.

SUMMARY OF THE INVENTION An object of the present invention is to provide a work hood capable of suppressing an increase in temperature inside the hood body.

The work hood of the present invention comprises a hood body covering the head and neck of a worker, a belt provided on the hood body and attachable to and detachable from a helmet put on the head, and the hood body. and a mounting hole passing through in the thickness direction of the hood, and when the hood is mounted in the mounting hole and the hood body covers the head and the neck, the air outside the hood body is sent to the inside of the hood body. and a blower fan.

According to the work hood of the present invention, the air outside the hood body can be sent inside. Therefore, it is possible to suppress the temperature rise inside the hood body.

(A) is a front view of a worker wearing a work hood, and (B) is a rear view of a worker wearing a work hood. Fig. 2 is a plan view of the work hood in an unfolded state as seen from the outer surface side; Fig. 2 is a plan view of the work hood in an unfolded state viewed from the inner side; (A) is a view showing the housing of the blower fan attached to the work hood, and (B) is a view showing the cover of the blower fan. It is a side cross-sectional view of a state in which the blower fan is attached to the hood body.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1, 2 and 3 show an embodiment of a working hood (air-conditioning hood) 10 according to the present invention. The work hood 10 is used when the worker 11 performs various works such as welding work, metal polishing work, and scraping work. The worker 11 uses the work hood 10 together with protective glasses 12, a dust mask 13, a helmet 16, etc. as shown in FIG. 1(A).

The work hood 10 is supported by a helmet 16 and covers the back of the worker's 11 head, sides of the head, and around the neck. The work hood 10 has a hood body 14 and a blower fan 15 . Main fabrics (materials) constituting the hood main body 14 are chino cloth twill and 100% cotton, which are relatively heat resistant. The hood body 14 can be attached to and detached from the helmet 16, and the hood body 14 is a covering member for covering the back of the worker's 11 head, sides of the head, neck, and the like. The hood body 14 has a central portion 17 , first lateral portions 18 and second lateral portions 19 . The central portion 17, the first lateral portion 18, and the second lateral portion 19 denote areas in which the entire hood body 14 is divided for convenience when the hood body 14 is unfolded and viewed from above.

The central portion 17 is located between the first lateral portion 18 and the second lateral portion 19 . 2 and 3, for convenience, the central portion 17 and the first lateral portion 18 are separated by the first partition line 20, and the central portion 17 and the second lateral portion 19 are separated by the second partition line 21. A partitioned example is shown. Note that both the first demarcation line 20 and the second demarcation line 21 are imaginary lines, and boundaries that clearly distinguish the central portion 17, the first lateral portion 18, and the second lateral portion 19 from each other physically exist. It doesn't mean that you are.

Central portion 17 has an upper edge 22 and a lower edge 23 . When the unfolded hood body 14 is viewed from the outside as shown in FIG. 2 and when the unfolded hood body 14 is viewed from the inside as shown in FIG. It is positioned between the one end and the first end of the second demarcation line 21 . The lower edge 23 is positioned between the second end of the first demarcation line 20 and the second end of the second demarcation line 21 . The upper edge 22 and the lower edge 23 are curved so as to expand in the same direction, and the total length of the lower edge 23 exceeds the total length of the upper edge 22 . Therefore, the distance between the first demarcation line 20 and the second demarcation line 21 increases from the upper edge 22 toward the lower edge 23 .

The first side portion 18 has a top edge 24 , a bottom edge 25 , a curved edge 26 and a side edge 27 . The upper edge 24 connects to the upper edge 22 and the lower edge 25 connects to the lower edge 23 . Side edge 27 joins bottom edge 25 and curved edge 26 joins top edge 24 and side edge 27 . The curved edge 26 is curved so as to approach the first dividing line 20 . A plurality of, for example, three engaging portions 28 are provided along the side edge 27 of the first side portion 18 . The three engaging portions 28 are snap buttons, for example. A hook-and-loop fastener 36 is attached to the outer surface 52 of the hood body 14 from the first side portion 18 to the central portion 17 . Hook-and-loop fasteners 36 are provided along the upper edges 22,24.

The second side portion 19 has a top edge 31 , a bottom edge 32 , a curved edge 33 and a side edge 34 . The upper edge 31 connects to the upper edge 22 and the lower edge 32 connects to the lower edge 23 . Side edge 34 connects to bottom edge 32 and curved edge 33 connects to top edge 31 and side edge 34 . The curved edge 33 is curved so as to approach the second dividing line 21 . A plurality of, for example, three engaging portions 35 are provided along the side edge 34 of the second side portion 19 . The three engaging portions 35 are snap buttons, for example. The engaging portion 35 can be engaged with and disengaged from the engaging portion 28 . The engaging portions 28 and 35 are provided to hold the first side portion 18 and the second side portion 19 in front of the neck of the operator 11 . A belt 29 extending from the curved edge 33 is provided on the second side portion 19 . A belt 29 is provided for attaching the hood body 14 to the helmet 16 . The belt 29 is made of a stretchable elastic member such as rubber. A hook-and-loop fastener 30 and a non-slipper 49 are provided on one side of the belt 29 . The non-slip 49 is, for example, silicon rubber.

The configuration of the blower fan 15 and the configuration for enabling attachment and detachment of the blower fan 15 to and from the hood body 14 will be described with reference to FIGS. 4 and 5. FIG. The blower fan 15 has a housing 37 , a cover 38 , a motor 39 and blades 40 . The housing 37 and the cover 38 are made of synthetic resin, for example. As shown in FIG. 4A, the housing 37 has an annular flange 41 over its entire circumference. As shown in FIG. 4B, the cover 38 is annular. Motor 39 and blades 40 are provided in housing 37 . The blade 40 is made of synthetic resin. Motor 39 is, for example, a DC motor.

Cover 38 is annular and has a flange 42 . A male threaded portion is provided on the outer peripheral surface of the housing 37 , and a female threaded portion is provided on the inner peripheral surface of the cover 38 . Thus, when housing 37 and cover 38 are centered about a common centerline A1 and cover 38 is rotated relative to housing 37 about centerline A1, cover 38 is fixed relative to housing 37. , and the cover 38 can be removed from the housing 37 .

A power source 45 is connected to the motor 39 via a power cable 44 . The power supply 45 is a DC power supply, and may be either a secondary battery (battery) or a primary battery. A changeover switch is provided in the power supply 45 , and when the operator 11 turns on the changeover switch, the electric power of the power supply 45 is supplied to the motor 39 , and the motor 39 and the blades 40 are rotated. When the operator 11 turns off the changeover switch, power is no longer supplied from the power supply 45 to the motor 39, and the motor 39 and the blades 40 are stopped.

A mounting hole 43 is provided in the central portion 17 to mount the blower fan 15 to the hood body 14 . The mounting hole 43 is a circular hole penetrating through the central portion 17 in the thickness direction. A reinforcing member 46 is sewn to the central portion 17 of the outer surface 52 of the hood body 14 . The reinforcing member 46 is provided to secure strength at a portion of the hood main body 14 that holds the blower fan 15 . The reinforcing member 46 is provided so as to surround the outside of the mounting hole 43 .

The reinforcing member 46 has a hole 48 and the bending stiffness of the reinforcing member 46 is higher than the bending stiffness of the central portion 17 . The reinforcing member 46 is configured by, for example, using a synthetic resin plate as a core material and covering the core material with a cloth. The inner diameter of the hole 48 and the inner diameter of the mounting hole 43 are the same and are provided around a common center line A1. The inner diameters of the mounting holes 43 and 48 are, for example, 88 mm.

Next, a usage example of the work hood 10 will be described. First, as shown in FIG. 5, a portion of housing 37 is inserted into hole 48 and mounting hole 43 of central portion 17 . Then, the housing 37 and the cover 38 are arranged concentrically along the common centerline A1, and the cover 38 is brought closer to the housing 37. As shown in FIG. Further, the cover 38 can be fixed relative to the housing 37 by rotating the cover 38 relative to the housing 37 about the centerline A1. The central portion 17 and the reinforcing member 46 are sandwiched between the flanges 41 and 42 while the cover 38 is fixed to the housing 37 . Therefore, it is possible to prevent the blower fan 15 from rotating with respect to the central portion 17 about the center line A1. The cover 38 is located on the inner surface 47 side of the hood body 14 and the flange 41 of the housing 37 is located on the outer surface 52 side of the hood body 14 .

The worker 11 wears work clothes 50, puts a helmet 16 on his head, and wears protective glasses 12 and a dust mask 13 on his face. Then, the working hood 10 is brought closer to the worker 11 with the inner surface 47 facing the back of the head and neck of the worker 11 . Further, the work hood 10 is curved so that the upper edges 22, 24, 31 contact the outer surface of the helmet 16 and the belt 29 contacts the outer surface of the helmet 16. The anti-slip 49 is brought into contact with the outer surface of the helmet 16, and the hook-and-loop fastener 30 and the hook-and-loop fastener 36 are engaged by overlapping a portion of the belt 29 with a portion of the hood body 14.例文帳に追加The frictional force between the non-slip 49 and the outer surface of the helmet 16 prevents the hood main body 14 from moving in the direction along the outer peripheral surface of the helmet 16 .

Further, the hood main body 14 is deformed so that the first side portion 18 and the second side portion 19 are brought closer to the neck of the worker 11, and as shown in FIG. The engaging portion 28 and the engaging portion 35 are engaged. When the operation of attaching the work hood 10 to the worker 11 is completed in this manner, the blower fan 15 is positioned behind the worker 11's neck as shown in FIG. 1(B). The power supply 45 can be kept in the pocket 51 of the work clothes 50, and the power cable 44 does not interfere with the work.

Since the worker 11 wears the work hood 10 in addition to the protective glasses 12 and the dust mask 13, the arc light (ultraviolet rays) leaking from the welded portion when performing welding work or metal polishing work, Flying spatter, slag, polishing dust, etc. can be prevented from reaching the face, neck, etc. of the worker 11 . Also, when the operator 11 turns on the changeover switch, the electric power of the power source 45 is supplied to the motor 39, and the motor 39 and the blades 40 are rotated. Then, as shown in FIG. 5, the air in the outside B1 of the hood body 14 is sucked by the blower fan 15 and supplied to the inside B2 of the hood body 14. As shown in FIG. The air supplied to the inside B2 flows along the neck and back of the operator's head, passes between the curved edges 26, 33 and the face, and is discharged to the outside B1.

Therefore, the temperature rise of the inside B2 can be suppressed, and the working environment of the worker 11 can be favorably maintained. Therefore, sweat on the face of the worker 11 can be reduced (reduced), which is a countermeasure against heat stroke due to blowing air to the neck. Moreover, the temperature difference between the inside and the outside of the protective glasses 12 can be minimized, and the fogging of the protective glasses 12 can be solved (prevented). Furthermore, when the hood body 14 is punctured or soiled, the blower fan 15 can be removed from the hood body 14 by rotating the cover 38 about the center line A1 with respect to the housing 37, and another hood body can be used. A blower fan 15 can be attached to 14 .

An example of the technical meaning of the items described in this embodiment is as follows. The work hood 10 is an example of a work hood. The hood body 14 is an example of a hood body. Belt 29 is an example of a holding member. The mounting hole 43 is an example of a mounting hole. Blower fan 15 is an example of a blower fan. The reinforcing member 46 is an example of a reinforcing member. Motor 39 is an example of a motor. Housing 37 is an example of a housing. Cover 38 is an example of a cover. The central portion 17 is an example of a central portion. The first side portion 18 is an example of a first side portion. The second side portion 19 is an example of a second side portion. The engaging portion 28 is an example of a first engaging portion. The engaging portion 35 is an example of a second engaging portion.

The work hood described in the present embodiment is not limited to that described with reference to the drawings. For example, the material of the hood body may be canvas. Also, the first side and the second side may be engageable and disengageable by fasteners. Furthermore, the holding member may be a string instead of the belt. Further, the structure in which the holding member is hung on the helmet and fixed by the hood main body may be a snap button instead of the hook-and-loop fastener.

The work hood of the present embodiment can be used to cover the back of the head, neck, etc. of the worker when performing welding work or polishing work for metal or the like.

DESCRIPTION OF SYMBOLS 10... Working hood 11... Worker 14... Hood main body 15... Blower fan 17... Central part 18... First side part 19... Second side part 28, 35... Engagement part, 29... Belt 37... Housing 38... Cover 39... Motor 43... Mounting hole 46... Reinforcement member B1... Outside B2... Inside

Claims (3)

a hood body covering the head and neck of a worker;
a holding member that is provided in the hood body and that can be attached to and removed from a helmet that is put on the head;
a mounting hole penetrating through the hood main body in the thickness direction;
a blower fan attached to the mounting hole for sending air outside the hood main body to the inside of the hood main body when the hood main body covers the head and the neck;
A work hood having a The work hood according to claim 1,
The hood body includes a reinforcing member surrounding the mounting hole,
The blower fan
a motor;
a housing that supports the motor;
a cover attachable to and detachable from the housing;
has
A work hood, wherein the housing and the cover sandwich the reinforcing member from both sides. The work hood according to claim 2,
The hood body is
a central portion having the mounting hole;
a first side portion and a second side portion arranged on both sides of the central portion;
has
a first engaging portion provided on the first lateral portion;
a second engaging portion provided on the second side portion and capable of engaging and disengaging with the first engaging portion;
A work hood further provided with a

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