TW201208592A - Shield member and protective helmet - Google Patents

Abstract

This invention provides a shield plate (5) having a main body (11) formed with a curved-plate shape made of a transparent article, and a brim (17) bending and protruding in an opposite side at a lower end of the main body (11), wherein the main body (11) is formed with a spherical shell shape convex in a front side, and the dimension in a up-and-down direction is longest in the central part of a left-and-right direction and gradually decreases as becoming nearer the ends of the left-and-right direction. An open plane PL of a helmet (3) and the brim (17) are intersected at an angle equal to or larger than 45 DEG and less than 90 DEG. A protruding length of the brim (17) in the central part is 10mm to 80mm, and the protruding length of the brim (17) is longest in the central and gradually decreases as becoming nearer the ends.

Description

201208592 VI. Description of the Invention: [Technical Field] The present invention relates to a cover covering a wearer's face (a member and a protective cap provided with the same). [Prior Art] The main 'in the construction work of the house, There is known a protective lens for protecting the eye (the upper part of the face) with the shielding (shading plate) as a countermeasure against the accident of the operator being injured by the needle of the needle. In the way of shielding the shielding plate, the method of puncturing the outside of the cap of the protective cap and the way of being able to be accommodated from the inside of the cap of the protective cap are only provided in the external If there is a shadow plate that forgets to set up or causes a workmanship to say that it is troubled by ^^, it is popular to store the shielding plate inside the cap body when the shielding plate is not used. In the case of the protective cap of the internal mounting type, the "protective cap described in the patent document jade and the patent document 2" can be cited. The (four) cap described in the patent document 1 is set as an outline of the financial impact ( Between the liner and the hamraock, a support plate formed with a guide hole and a face protection plate (laid plate) provided on the guide hole by the engagement member to be lifted and lowered The face protection plate fitting (assemb 1 y) ' is configured such that the lower end portion of the guide hole is located outside and the center is located below, and the support plate is flexed to adjust the position of the face protection plate in three stages. ° The protective cap described in Patent Document 2 is provided with a front shield plate assembled in a straight shape 4 323383 3 201208592 guide hole, and assembled with one end so as to be rotatable with the front shield plate and the other end. The left and right side shields of the guide holes that are assembled in the shape of the curve jCUrVe) are configured such that when the moon 1J shield plate is pulled downward, the left and right side shield plates are also interlocked and pulled forward obliquely downward. [Patent Document] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2003-049519 (Patent Document 2) Japanese Laid-Open Patent Publication No. 2003-253519 (Summary of the Invention) In the protective cap of the shielding plate, although the shielding plate is used to cover the upper part of the wearer (eye part) or the side of the face, the lower half of the face wearing the protective cap is not covered, but the face of the wearer is exposed. The lower part makes the lower half of the face unprepared. In the maintenance of electric machines, etc., there is a slight chance that the Mars will be generated from the electric machine, and the cover panel is required to cover the entire face of the wearer to protect it. f Port θ $ can be considered to protect the wearer's face as a whole, but the right is just to protect the face as a whole ^ n 4c £= 'There will be a collision with the shield of the Qiu Bagua in the body. The face (the part of the joint between the head and the body). To cover the wearer's face 323383 5 201208592 The substantially integral shielding member' prevents the flying object that rebounds from hitting the shielding plate and hits the neck of the wearer of the protective cap. [Means for Solving the Problems] The invention according to a first aspect of the present invention is a shielding plate which is provided on a cover for protecting a face of a wearer's head, and is provided with a body. The body portion is formed by a transparent portion or a semi-transparent (four) portion, and the (four) portion is curved and protruded downward from the main body portion below the main body portion; the main body portion is It is formed in a spherical shell shape that protrudes toward the front, and the dimension in the vertical direction becomes longer in the center portion in the left-right direction, and becomes smaller as it goes toward the end portion in the left-right direction; the opening plane of the cap body and the above-described brim portion The angle of the intersection is 45 degrees or more and less than 90 degrees, and the length of the brim portion protruding from the main body portion in the center portion in the left-right direction is 1〇1〇111 to 8〇111111 (1〇_ or more and 80 mm or less), the length of the above-described brim portion protruding from the main body portion is lengthened in the center portion in the left-right direction, and gradually decreases toward the end portion in the left-right direction. According to a second aspect of the invention, in the shielding plate of the second aspect, the angle of intersection between the opening plane of the cap body and the brim portion is about 55 degrees in the center portion in the left-right direction, and is in the left-right direction. The end portion gradually becomes larger and becomes about 57 degrees, and then gradually becomes smaller and becomes about 52 degrees. According to a third aspect of the invention, in the shielding plate of the second or second aspect, wherein the main portion is substantially vertically extended in the center portion of the left-right direction and the vicinity thereof, and the end portion in the left-right direction and the vicinity thereof The lower end of the body portion extends slightly obliquely on the outer side. The invention of claim 4 is a protective cap having the shielding plate of any one of the first to third aspects; the cap body; and the guiding hand for guiding the shielding plate 'The shield plate is movable between a storage position accommodated in the cap body and a covered position where the shielding plate covers the wearer's face. [Effects of the Invention] According to the present invention, in a protective cap having a shielding member for covering substantially the entire face of a wearer, it is possible to achieve a neck of a wearer that prevents the flying object that rebounds from hitting the shielding plate and hits the protective cap. Effect. [Embodiment] As shown in Fig. 1 and the like, the protective cap (the helmet with the shielding surface) i is provided with, for example, a cap body 3 that is substantially symmetrical, a shielding plate 5, and a guiding means for guiding the shielding plate 5. 7 constitutes. In addition, in the following, each direction of the protective cap 1 (the cap 3, the shielding plate 5, and the like) is set to the width direction (left-right direction), the front-rear direction, and the up-and-down direction, and "right", "left", "upper", and "right" are used. The descriptions of "下下", "前", and "后后" are explained. Each of the above directions is a direction in which the wearer who stands (upright) wears the protective cap and the three directions are substantially orthogonal to each other. As shown in Fig. 15, etc., the cap body 3 is for protecting the wearer's head f, for example, 'constructed from a material such as resin, and formed into a bowl hemispherical shell shape. Here, the term "hemispherical shell" refers to a solid shape from a first radius of a predetermined radius smaller than a radius of the first sphere and a shape of the center and the i-th sphere, to pass through the center of each of the aforementioned spheres or In the vicinity of the flat 323383 201208592 face 'to be divided into #] is formed by 2_ square. The cap body 3 is formed in a "hemispherical shell shape" and a spherical shell shape. That is, _ is formed into a shape that appropriately changes the radius of curvature in order to conform to the semi-equal shape: shape: fit the head shape of the wearer - rate radius: change IS: located in the light wear, take less eight ants, and open Part 9 will show C slightly above the upper side, and expose the wearer's ear (He: 6). Further, a hat portion 1 is formed in the opening portion of the cap body 3. You also make the whole ===; the shielding member) 5 is made of material that protects the wearer's (4) /, transparent (including transparent) or translucent material. In the case of the movement of the shielding plate 5 relative to the cap body 3, the guiding device 5 is guided by the guiding means 7 so as to be shielded between the storage position P1 and the covering position Ρ3. , move the favorite position in the way of the stroke circle / ▲ trace? 1 is a shield plate 5 housed in a cap body. The position of P's covering position P3 is a position at which the shielding plate 5 covers the entire face (front of the head). Further, in a state where the shielding plate is worn by the standing wearer at the covering position P3 of the protective cap 1, the ears of the wearer are hidden by the shielding plate 5 when viewed from the front of the wearer. 8 3233^ 201208592 The shielding plate 5' guided by the guiding means 7 is formed so as not to be easily separated from the cap body 3 and does not move in the left-right direction of the protective cap 1, but can be directed toward the protective towel from 1 (cap 3) The predetermined axis ci (the 3rd, 6th, and 8th drawings of the loss) extending in the left-right direction is the center of rotation (rotation). The predetermined axis C1 extends in the left-right direction of the cap 3 toward the rear of the wearer's ear (in a direction orthogonal to the plane of the sheets of Figs. 3, 6, and 8). In the state where the shielding plate 5 is located at the storage position pi, the shielding plate 5 is not completely housed inside the cap body 3, but the lower end portion of the shielding plate 5 (the lower end portion of the brim portion 17 is provided). The vicinity of the cap body 3 protrudes downward from the lower end portion of the cap body 3 (the opening portion on the front side of the cap body 3). In addition, the 'hat han (cap han) 17 is rotated at the lower end of the shielding plate 5. That is, the 'Cap han section 17 is curved and extended in the opposite direction (the direction away from the wearer's face). Therefore, even if the flying object hits the shielding plate (the main body portion u of the shielding plate at the covering position P3) 5 (refer to the arrow of Fig. 6 to prevent the flying object from sliding on the surface of the shielding plate 5 and the wearer In a state in which the shielding plate 5 is located at the storage position P1, even if the lower end portion or a portion thereof is protruded downward from the lower end portion 9 of the cap body 3, the wearer is not hindered, and the wearer can be in the field of view. In addition, the upper end portion of the shielding plate 5 is located near the top portion of the cap body 3. The upper end portion of the shielding plate 5 is located at the lower end portion of the shielding plate 5 in a state where the shielding plate 5 is located at the covering position P3. It is located on the lower side of the wearer's crotch portion, and covers the substantially entire face of the wearer by the shielding plate 5. That is, when viewed from the front, the entire face of the wearer is covered by the cover 323383 9 201208592 ( Referring to Figs. 4 to 6), the upper end portion ' of the shield plate 5 is located inside the cap body 3 near the lower end portion of the cap body 3 (the opening portion 9 on the front side of the cap body 3). Further, in the protective cap 1 Medium, which is provided to hold the shielding plate 5 The holding means 13 is a means for holding the shielding plate 5 such that when the shielding plate 5 is placed at the storage position P1 or the covering position P3, the shielding plate 5 is less likely to move relative to the cap 3. Here, the shielding is further described in detail. Plate 5. As described above, the shielding plate 5 is provided on the cap body 3 for protecting the wearer's head, for covering the wearer's, for example, substantially the entire face, and is formed into a curved plate shape by a transparent body or a translucent body. The shielding plate 5 is formed in a plate shape in which the other side of the one side in the thickness direction is the material of (10). Further, the thickness is gradually thinned toward the peripheral portion (refer to Fig. 22 (b), Fig. 23). Further, the shielding plate 5 is made of, for example, a resin such as acrylic or polycarbonate, and is formed by injection molding. Further, the shielding plate 5 is in accordance with the ANSI standard, and is made up to h 6 coffee to 2 〇 〇 The thickness of the left is not broken even if subjected to a high-speed impact test. The shielding plate 5 is formed into a curved plate shape so that the inner side of the shielding plate 5 on the side of the wearer (one side in the thickness direction) is formed. Formed into a concave shape and belong to the thickness direction The surface on the outer side of the surface is formed in a convex shape. The radius of curvature of the shielding plate 5 in the left-right direction is formed such that the radius of the vertical direction is smaller and the thickness of the shielding plate 5 is changed in the left-right direction. The ratio of the change in thickness in the vertical direction is large (refer to 323383 10 201208592, Fig. 22 (b), Fig. 23). In addition, the middle of the arc of the upper and lower sides of the shielding plate 5 is, for example, an axis. C1 is the same. On the other hand, among the arcs in the left-right direction of the shielding plate & 2, for example, it is located in the opening portion 9 of the cap body 3, which is slightly smaller (for example, 10 mm to 15 coffee beans). . Further, as shown in Fig. 6, the shield plate 5 is provided with a main body portion u and a brim portion 17, and the main body portion u is lacking. The convex surface (concave surface) of the body (4) of the shielding plate 5, = = a predetermined shape similar to the third-order curved surface of the pre-twisting. The predetermined third-order curved surface is expanded into a cylindrical shape by expanding the central portion of the axial direction by the i-th plane including the axis and the second plane including the axis and intersecting the first plane at a predetermined angle One of the four three-order curved surfaces obtained when the shape of the wine cup-shaped three-dimensional side is cut. Further, as shown in Fig. 21(a), when viewed from the front, the upper end of the main body portion 11 of the shielding plate 5 is formed in a straight line, and the lower end of the main body portion 11 of the shielding plate $ is formed to be The lower side is formed in an arc shape, and both ends of the main body portion 11 of the shielding plate 5 in the left-right direction are formed in an arc shape that protrudes outward. The lower portion faces the body as described above, and the brim portion 17 is curved and protrudes on the opposite side of the body portion u portion 11. More specifically, as shown in the 21st ffl (a), the cap portion 17 is formed into a plate shape in a crescent shape when viewed from the front, and is formed in a concave shape of a crescent shape, and is a shield plate 5 The lower end of the body portion u is connected. Further, the brim portion 17 protrudes downward from the lower end of the main body portion 11 and is integrally formed with the main body portion "323383 11 201208592". Further, as shown in Fig. 6, when the standing wearer wears the cap 3 and covers the wearer's face with the shielding plate 5, the brim portion 17 faces toward the lower end from the upper end (the end on the side of the main body portion 11). The direction in which the wearer's face leaves (front) protrudes. Further, in the central portion in the width direction of the brim portion, a concave portion 15 recessed in the inner side (rear side; the side of the wearer's face) of the main body portion 11 with a predetermined width is formed. Here, the action of wearing the protective cap 1 and taking out the shielding plate 5 will be described. First, the wearer wears the protective cap 1 in a state where the shielding plate 5 is at the storage position P1. When the shield plate 5 is to be placed at the covering position P3 for operation, the lower end portion (e.g., the brim portion 17) of the shield plate 5 is pulled downward to move the shield plate 5 downward. On the other hand, when the shielding plate 5 located at the covering position P3 is placed at the receiving position P1, the shielding plate 5 is pushed up to move upward. According to the protective cap 1, since the shielding plate 5 has a thickness that gradually becomes thinner from the central portion toward the peripheral portion, the length of the optical path when the wearer sees the front side through the shielding plate 5 (in the shielding plate) The optical path length is smaller than the optical path length (the optical path length in the shielding plate) when the wearer views the periphery through the shielding plate 5, and even when the wearer views the object through the peripheral portion of the shielding plate 5 Reduce the distortion of the image as much as possible. That is, as shown in Fig. 24, since the difference between the optical path length L11 of the shielding plate 5 and the optical path length L21 becomes small, and the difference between the aperture length L11 and the optical path length L31 becomes small, the image distortion can be obtained. Reduce as much as possible.

12 323 383 S 201208592 Here, the reference numeral F shown in Fig. 24 shows the surface on the outer side of the shield plate 5 of the present embodiment (convex), and the reference numeral indicates the inner side of the shape shielding plate 5 of the present embodiment. (concave). Thereby, the thickness of the shielding plate 5 of the present embodiment is gradually changed from the central portion toward the peripheral portion, and the surface on the outer side of the conventional shielding plate is displayed with reference to the symbol F0, and the reference symbol F 2 is displayed. The surface of the inner side of the shielding plate is conventionally used, whereby the thickness of the conventional shielding plate is fixed. Reference symbol R1 shows the light of the light entering from the front to the wearer's eye EY, and the reference symbols R2 and R2a show the light path from the side surface (the peripheral portion of the shielding plate) into the light of the wearer's eye EY. Reference numerals R3 and R3a show the optical path of light entering the wearer's eye Εγ from the side of the side. From the front side, the light of the wearer's eyes (the light of the optical path ri) is at the aperture length of the shielding plate 5 (the optical path length in the shielding plate 5 of the present embodiment) L11 and the optical path length (in the conventional shielding plate) The optical path lengths L12 are equal in length to each other. On the other hand, 'because the refractive index of the shielding plate is larger than the refractive index of the air', according to Snell's law, the light of the eye EY entering the wearer's eye from the side of the side (light path R2) The light of R2a is in the optical path length of the shielding plate (the optical path length in the conventional shielding plate) L22, and the optical path length (the optical path length in the shielding plate 5 of the present embodiment) L21 is shortened, and the optical path length is shortened. The length of L21 is substantially equal to the length of the optical path length L11. Similarly, the optical path length L31 is shorter than the optical path length L32, and the length of the optical path length L31 is approximately the length of the optical path length L11. equal. Thereby, the distortion of the image can be reduced as much as possible. 323383 13 201208592 Further, according to the protective cap 1, the radius of curvature of the shielding plate 5 in the left-right direction is formed such that the radius of curvature in the vertical direction is small, and the ratio of the change in the thickness in the left-right direction is formed to be a thickness in the up-and-down direction. The proportion of the change is large, so that the distortion of the image when the wearer views the article through the peripheral portion of the shield plate 5 can be reduced as much as possible in accordance with the wearer's face shape. That is, since the radius of curvature of the upper and lower directions of the shielding plate 5 is formed to have a larger radius of curvature in the left-right direction, the face of the wearer can be covered in accordance with the shape of the wearer's face. Further, since the radius of curvature of the upper and lower sides of the shielding plate 5 is larger than the radius of curvature in the left-right direction, the ratio of the change in the thickness of the upper and lower directions of the shielding plate 5 to the thickness of the horizontal direction can be changed. Zoom out more and reduce the distortion of the image as much as possible. Further, the protective cap 1 is attached to the body by the cap portion η of the shield plate 5. The lower side of the crucible 11 is curved and protrudes toward the side opposite to the main body portion 11 (reverse direction; the direction away from the wearer's face). Therefore, as described above, even if the flying object hits the shielding plate 5, the flying object can be prevented from slipping. A situation in which the surface of the shielding plate 5 is in contact with the wearer's body. That is, as shown by the arrow A6 in Fig. 6, the flying object flying from the obliquely upward direction, when hitting the lower side of the shielding plate 5 at a shallow angle, the flying object which is rebounded and rebounds will slide on the surface of the shielding plate 5. And there is the possibility of reaching the neck of the wearer. Further, in Fig. 6, since the wearer is oriented in the horizontal direction, the above-described possibility is small. However, when the wearer moves toward the upper side, the flying object that rebounds by the above-mentioned collision reaches the wearer due to the influence of gravity. The possibility of the neck will become higher. However, since the brim portion 17 is provided, the flying object "bounced by the above impact will hit the brim portion 17 again and be worn from the 323383.

S 14 201208592 The position where the person leaves is removed to avoid reaching the wearer's neck (at least the neck, including the shoulders or abdomen, etc.). Further, according to the protective cap 1, since the concave portion 15 is provided, the wearer of the protective cap 1 can easily operate the shielding plate 5. In other words, in the state where the shielding plate 5 is present at the storage position pi, since the concave portion 15 is provided in the brim portion π of the shielding plate 5, the brim portion π of the shielding plate 5 and the brim portion 1 of the cap body 3 Between them, there is a gap in which the wearer can put a finger. Further, when the shielding plate 5 existing at the storage position ρ is positioned at the covering position P3, the wearer can place the finger in the gap and easily move the shielding plate 5 downward to be positioned at the covering position p3. Here, the protective cap 1 will be described in further detail. As shown in Fig. 7, the protective cap i is provided with a cap body 3, a guiding member 509 constituting the guiding means 7, a shielding plate 5, an impact absorbing member (impact absorption absorbing) 513, a crotch cord 515, and the inside. The body (inner cap net) 51 is constructed. The impact absorbing member 513 is formed, for example, in the form of a bowl of styrofoam. Further, after the assembly body 511 of the guide member 5〇9 and the shielding plate 5 is disposed inside the cap body 3, the impact absorbing member 513 is disposed inside the cap body 3 and the group body 51丨, and then The portion line 515 and the inner cap net 517 are disposed on the cap body 3 or the guiding member 509, whereby the protective cap i is assembled. The cap 3 of the protective cap 1 is composed of a cap body portion 519 and a cap body portion 10, and is formed, for example, in two colors. The cap body portion 519 is made of an opaque resin, and the cap body portion 1 is made of a transparent (transparent color-containing) resin or a translucent resin. As shown in FIG. 12 and the like, the guidance means 7 is provided with a guide portion 523 323383 15 201208592 and an engagement portion 525 which is provided, for example, by a guide member 509 made of resin. The engaging portion 525 is provided on a shielding plate 5 made of a transparent or translucent resin. As shown in Fig. 18 and Fig. 19, the guide member 509 is provided with a central portion 527 having a spherical curved surface and formed into a plate shape, and the guide portion 523 is formed at the central portion 527. Further, the guide portion 523 is formed to be long and provided in plurality to guide the shield plate 5 when the shield plate 5 is moved between the storage position P1 and the covering position P3. Each of the guide portions 523 is substantially parallel to each other and is provided at the center of the center portion 527 in the width direction (left-right direction). In detail, the central portion 527 is formed in a spherical shell shape of 1/4. Here, the 1/4 spherical shell (1/4 spherical shell) refers to a three-dimensional shape formed as follows. First, a first ball having a predetermined radius is obtained, and a solid (spherical shell) having a shape slightly smaller than the radius of the first ball and having a center corresponding to the first ball is formed. Next, the spherical shell is divided into two by the second plane passing through the center of the respective balls or the vicinity thereof, thereby obtaining a one-dimensional one-dimensional hemispherical shell of the two divided three solids. Then, the hemispherical shell is divided into two by a second plane that is substantially orthogonal to the i-th plane by the center of the respective balls or the vicinity thereof, and the three-dimensional one of the two stereoscopic divisions is obtained. 1/4 ball shell. Further, since the guiding member 509 is provided inside (inside) the cap body 3, the radius of curvature of the central portion 527 of the guiding member 509 (the above-mentioned [curvature radius of the ball] is slightly smaller than the radius of curvature of the cap body 3). small. 323383 16 201208592 The two-ball shell shape of the complete "V4 spherical shell" is not the same as that of the cap body 3, and the shape of the two central portions 527 is appropriately changed in radius. The shape of the wearer's head is formed into a circular arc whose end portion of the curved central portion 527 is not complete, and is formed into an arc shape whose curvature radius is appropriately changed in order to conform to the shape of the wearer's head. Here, the end portion of the central portion 527 is an arc-shaped (semi-arc-shaped) portion formed by the division of the i-th plane (the first semi-circular end portion, "529"), and An arc-shaped (semi-circular arc-shaped) portion (the second semi-circular end portion curve 531) formed by the division of the second plane. The first semicircular shape and the 卩 curve 529 are, for example, substantially located at the first On the plane, a shape in which the unevenness is hardly present in the direction orthogonal to the first plane is formed. Further, since the central portion 527 has a thickness (a difference between the radius of the first ball and the radius of the second ball), More specifically, the first semicircular end curve 529 can be referred to as an i-th semicircular end curved surface. The second semicircular end curve 531 is, for example, orthogonal to the second plane, from the second plane. In some cases, there is a slight unevenness in the direction of the father of the second plane, and the second semicircular end curve 531 is more correct, as in the case of the i-th semicircular end curve 529. It can also be called a second semicircular end surface. As shown in Fig. 8, etc., in guiding The member 509 is disposed in the state of the cap body 3, and the central portion 527 of the guiding member 509 is located inside the cap body 3, is slightly separated from the cap body 3, and is integrally provided to the cap body 3. Thereby, the cap body Between the 3 and the central portion 527, a thickness of the cap body 3 or a thickness of the 323383 201208592 central portion 527 is a thickness of a predetermined thickness of the quarter of the spherical shell space 533, and the shielding plate (located at the storage position P1) The shielding plate 5 is formed to enter the 1/4 spherical shell-shaped space 533. It is further explained that the first semicircular end curve 529 is slightly separated from the inner wall of the cap body 3 and is located along the inner wall of the cap body 3 Near the left end of the rounded edge of the lower end of the cap body 3, near the right side of the cap body 3, extends to the vicinity of the right end of the rounded edge of the lower end of the cap body 3. In other words, the first semicircular end curve 529 is The wearer's left ear is above the top of the wearer's head and extends above the right ear of the wearer. Further, the second semicircular end curve 531 is slightly from the semicircular edge on the front side of the front side of the lower end of the cap body 3. Separate and along the semicircular edge on the front side of the cap 3, From the vicinity of the left end of the rounded edge located at the lower end of the cap 3, near the front end of the edge of the cap 3, extends to the vicinity of the right end of the rounded edge at the lower end of the cap 3. In other words, the second semicircular end curve The 531 is extended from above the wearer's left ear to the upper side of the wearer's right ear by the wearer's forehead. As shown in Fig. 18(b) and the like, the guide portion 509 is provided at the central portion 527. For example, three guide portions 523 are provided. Each of the guide portions 523 is formed of, for example, an oblong through hole (a through hole penetrating through the center portion 527 in the thickness direction) 535, 537, and 539, and is disposed in the width direction. At the center of the central portion 527 and the left and right sides. The guide portion 523 (through hole 535) provided at the center of the center portion 527 is formed near the center of the second semicircular end portion curve 531 to the vicinity of the center of the first semicircular end portion curve 529. In other words, in the state in which the through hole 535 provided in the center 18 323381 201208592 is held at the center in the lateral direction (width direction; left and right direction), the center of the front part of the wearer is passed from the vicinity of the center of the forehead of the wearer. Extends to the top of the wearer's head. The guide portion 523 (through hole 537) on the left side is provided in parallel with the through hole 535 provided in the center, and is formed from the vicinity of the left side of the second semicircular end portion curve 531 to the first semicircular end portion. Near the left side of the 529. In other words, the through hole 537 provided on the left side extends from the obliquely left front portion of the wearer's forehead to the vicinity of the obliquely upper left portion of the top of the wearer's head through the obliquely left front portion of the wearer's head. The guide portion 523 (through hole 539) on the right side is provided symmetrically with the through hole 535 provided in the left side via the through hole 535 provided in the center. In other words, the through hole 539 on the right side is disposed symmetrically with respect to the through hole 537 on the left side with respect to a plane which is developed in the up-and-down direction by the center of the guide member 5〇9. Here, the positional relationship of the three guide portions 523 (through holes 535, 537, 539) will be described in further detail. For ease of explanation, the presence of each of the side portions 541, 543 (see Fig. 18, etc.) of the guiding member 509 is ignored (assuming that the side portions 541, 543 of the guiding member 509 are not present). The extension lines of the three through holes 535, 537, and 539 (the center line in the width direction of the oblong-shaped through holes 535, 537, and 539 are the center lines extending in the longitudinal direction of the through holes 535, 537, and 539) The intersection point ' with the second semicircular end curve 531' is a lower left intersection 545, a lower central intersection 547, and a lower right intersection 549 (see Fig. 18 (a), (b), and 19th. Figure (a)). 323383 19 201208592 Thus, the left end of the second semicircular end curve 531 (the left end coincident with the left end of the first semicircular end curve 529, refer to FIG. 18(a)) 551 and the lower left intersection 545 The distance (the distance on the second semicircular end curve 531) is equal to or slightly different from the distance between the lower left intersection 545 and the lower central intersection 547 (the distance on the second semicircular end curve 531). Big. Further, similarly, the right end of the second semicircular end curve 531 (the right end coincident with the right end of the first semicircular end curve 529, refer to FIG. 18(a)) 553 and the lower right intersection 549 The distance (the distance on the second semicircular end curve 531), that is, the distance between the lower right side intersection 549 and the lower central intersection point 547 (the distance on the second semicircular end curve 531) is equal or large. . Further, as shown in Fig. 18(b), the intersections of the extension lines of the three through holes 535, 537, and 539 and the second semicircular end curve 529 are respectively set as the upper left side and the point 555, Upper central intersection 557, upper right intersection 559. In this way, the distance between the left end 551 of the first semicircular end curve 529 and the upper left side and the point 555 (the distance on the first semicircular end curve 529), that is, the upper left intersection 555 and The distance between the upper central point and the point 557 (the distance on the first semicircular end curve 529) is equal or large. Further, similarly, the distance between the right end 553 of the first semicircular end curve 529 and the upper right side intersection point 559 (the distance on the second semicircular end curve 529) is the upper right side intersection point 559 and The upper central intersection is again 3233; 20 201208592 ^ The distance between points 557 (the distance on the first semicircular end curve 529) is equal or judging. By providing the guide portion 523, the guide portion 523 (the through hole, 537, 539) is formed so as to extend in the up-and-down direction in the center portion side (the center portion in the width direction) of the center portion 527. In addition, the central guide portion 523 (through hole 535) may be removed to form the guide portion 523, or the central guide portion 523 (through hole 535) may be two. A configuration is adopted in which one guide portion is moved to the left side of the tenth center and the other guide portion is moved to the right side of the center to provide four guide portions (long circular through holes). Further, a configuration may be adopted in which a plurality of guides extending in the up-and-down direction are provided in a plurality of (10) upper and lower directions on the center side (centered in the width direction) of the center portion 527. Further, the guide member 509 includes the above-described central portion 527, a plate-shaped first lateral portion (left side portion) 541, and a plate-shaped second lateral portion (right side lateral portion) 543. . The i-th side portion 541 is one end (four) (left side) in the width direction of the center portion 527 and is located below the center portion 527, and is integrally provided at the center portion 527. The second side portion 543 is formed on the other end side (right side) in the width direction of the center portion 527 and below the center portion 527, and is integrally provided at the center portion 527. Further, the pair of central portion engaging portions 561 (see FIG. 18(b) and the like) are engaged with the pair of central portion-engaged portions 563 (see FIG. (c)), and the left side of the side 1 side The square portion engaging portion 565 (see FIG. a (a)) is engaged with the second side portion engaging portion 569 on the right side of the first side portion-engaged portion 567 (see FIG. 15(c))' (Refer to Fig. 18 (&)) 323383 21 201208592 Engaged in the second side portion of the engaged portion 571 (see Fig. 15(c)), and the guide member 509 is integrally provided to the cap 3. The pair of center portion engagement portions 561 are formed at the center portion 527 in the vicinity of the respective side portions 541 and 543, and the pair of center portions are restrained by the engagement portion 563 on the side of the cap body 3. The second side portion engagement portion 565 is provided in the first side portion 541, and the i-th side portion is engaged by the engagement portion 567 on the left oblique rear side 帛 2 side portion engagement portion 569 of the cap body. The second side portion is provided on the second side portion 543 ′, and the second side portion is coupled to the right oblique rear side of the cap body 3 by the engagement portion 571 . More specifically, as shown in Fig. 18, the 1 1 side portion 5' is formed in a short strip shape with substantially the same thickness as the center 527. The "end portion" in the longitudinal direction of the first side side 541 is connected to the lower end side (lower left end side) of the one semicircular end portion curve 529. Further, the second side portion 543 is symmetrically disposed with respect to the center of the guide bow member_developed in the front-rear direction and the i-th side portion 541: two: 丄: the square portion is only 541 in the width direction - the end portion (the lower end portion, the left extension line of the second semicircular end portion curve 531 of the miscellaneous 527, and the one end portion of the second fiscal portion (4) in the width direction), that is, the second semicircular end portion curve 5 at the center portion 527 The approximate extension on the right side. The guiding member 509 is detachable with respect to the cap body 3, and is engaged by a central portion of the central portion 527 of the guiding member 509, such as being engaged with a central portion of the (four) 3 pair. The guiding member 509 which is not placed in the cap 3 is not easily separated from the cap body 3. 3233 every 22 201208592 For example, the central portion engagement portion 561 is a first central portion engagement portion (a projection that protrudes slightly outward from the central portion 527) 573 (see Fig. 18(a)), and The second central portion engaging portion 575 (see Fig. 18(a)) having elasticity is formed. The central portion-engaged portion 563 is constituted by a portion which is regarded as a rigid body (a projection which protrudes from the inner wall of the cap body 3 toward the inner side of the cap body 3, see Fig. 15 (c), Fig. 17) 577. In addition, when the guide member 509 is placed on the cap body 3 (when the first central portion engagement portion 573 is engaged with the central portion-engaged portion 563), the second central portion engagement portion 575 abuts against the cap. The body 3 (the central portion is engaged with the engaging portion 563 or its periphery) is elastically deformed, and when the guiding member 5〇9 is completed in the cap body 3 (the first central portion engaging portion 573 is engaged with the central portion) When the engaged portion 563 is engaged, the second central portion engaging portion 575 is restored. The second center portion engagement portion 575 thus restored is temporarily provided to the guide member 509 of the cap body 3, that is, it is not easily separated from the cap body 3. .  That is, even when an external force is applied to the cap body 3 or the guide member 509 or the shielding plate 5 even when the shielding plate 5 or the like is moved, the guiding member 509 is not easily separated from the cap body 3. Further, the center portion engagement portion 561 or the center portion is engaged by the engagement portion 563 at a position that does not interfere with the shield plate 5. In addition, Fig. 11(a) is a view showing a state in which the central portion engagement portion 561 of the guide member 509 is engaged with the central portion of the cap body 3 by the engagement portion 563. The value of the length of the strip-shaped first side portion 541 or the strip-shaped second side portion 543 is slightly smaller than the value of one half of the length of the second semicircular end portion curve 531. As shown in Fig. 18 (a) and the like, the first side portion engaging portion 565 is constituted by two through holes 579, 23 323383 201208592 581 that penetrate the first side portion 541 in the thickness direction. One of the two through holes 579 and 581 constituting the first side portion engagement portion 565 is a through hole (rear through hole) 581 which is provided at the front end portion of the first side portion 541 (in the first side portion) The other through hole (front through hole) 579' of the two through holes 579 and 581 constituting the first side portion engagement portion 565 is in the vicinity of the end portion of the 541 in the longitudinal direction opposite to the center portion 527. The longitudinal direction of the first side portion 541 is provided between the central portion engagement portion 561 and the rear through hole 581 (for example, substantially at the center portion). Similarly to the first side portion engagement portion 565, the second side portion engagement portion 569 is constituted by the rear through hole 581 and the front through hole 579, and the second side portion engagement portion 569 is penetrated. The holes 579 and 581 are symmetrically provided with the respective through holes 579 and 581 of the first side portion engagement portion 565 with respect to a plane that is developed in the up-and-down direction with respect to the center of the guide member 509. As shown in Fig. 15 (c) or Fig. 16, the first side portion is engaged by the engaging portion 567 in the vicinity of the opening portion (edge of the lower end portion) of the cap body 3 from the inner wall of the cap body 3 toward the cap body 3. Two protrusions (a front side protrusion and a rear side protrusion) 583 which are slightly protruded inside are formed. The second side portion is engaged with the engaging portion 571 in a plane that is developed in the up-and-down direction with respect to the center of the cap body 3, and is symmetrically disposed with the first side portion by the engaging portion 567. That is, each of the side portions is constituted by two front side protrusions 583 and two rear side protrusions 583 by the engaging portions 567 and 571. In a state in which the first side portion engagement portion 565 is engaged with the first side portion-engaged portion 567, the first side portion 541 abuts against the inner wall of the cap body 32 of 24 32338^201208592. In the state in which the 帛i side portion engagement portion 565 is engaged with the i-th side portion-engaged portion 567, the guide member 5〇9 (the third side portion 541) is opposed to the cap body 3. The movement in the up and down direction is restricted, and it is slightly movable with respect to the front and rear direction of the cap body 3 (the direction of the inner circumference of the cap body 3) with respect to the cap body 3, and in the thickness direction of the cap body 3, it is possible to The inside of the cap body 3 moves. Further, the movement in the thickness direction of the cap body 3 is restricted by providing the inner cap net 517 to the cap body 3. The second side portion engagement portion 569 is engaged with the second side portion engaged portion, and the first side portion engagement portion 565 is engaged with the second side portion engaged portion 567. the same. When the guide member 509 is placed in the cap body 3, the i-th side portion engagement portion 565 is engaged with the second side portion-engaged portion 567', and the second side portion engagement portion 569 is attached. The engagement portion 571 is engaged with the second side portion, and the central portion engagement portion 561 is engaged with the central portion engagement portion 563. Furthermore, the guiding members 5〇9 are firmly provided to the cap body 3. In addition, the edge on the lower side of the guide member 509 (the second semicircular end curve 531 and the lower end portions of the respective side portions 541 and 543) in the state where the guide member 5〇9 is provided in the cap body 3 is completed. It extends along the edge of the cap 3 near the inner side of the edge (opening) of the cap body 3. Further, in a state where the guiding member 509 is disposed in the cap body 3, when the cap body 3 or the guiding member 5〇9 is viewed from the lower side toward the upper side, the edge of the cap body 3 is formed into a substantially ring shape. The shape (the diameter in the front-rear direction is larger than the diameter in the width direction). On the other hand, the guiding members 5〇9 are formed so as not to be connected only at the rearmost portions (the front ends of the side portions 541 and 543 are slightly different from each other 25 323383 201208592: a horseshoe shape of the cymbal. In addition, the 'guide member edge Similarly, it is formed in a ring shape. When the first side portion of the U body 3 is engaged with the engaging portion 567, a 2 2: square tree abrupt, private dog is formed* ( The protrusion 583 facing the inner side of the cap body 3 and the engaging portion YANG, 571 is further enlarged into a snap-fastening portion (a cap fastening portion composed of four protrusions), in the card i, 5 (c), Fig. 16) The cap body engaging portion 585 is used to snap the inner cap net 517. The end: Γ: the inner side of the central portion 527 of the member 509 and the second semicircle: the vicinity of the line 531 is formed with In the same manner as the cap body snap portion 585, the formed snap portion (the guide member snap portion composed of four projections) is referred to Fig. 18(b) and Fig. 20). The guiding member fastening portion 7 is also a portion for snapping the inner cap net 517. The guiding member fastening portion 587 of the guiding member 509 is symmetrically disposed with respect to a plane that is developed in the up-and-down front-rear direction by the center of the guiding member 509, whereby the guiding member 5〇9 is disposed on the cap body 3 In the state of the above, the hook portions 585, 587 are provided at a total of eight positions. Further, 'the state in which the guide member 509 is placed on the cap 3 is completed', the buckled portion 589 of the inner cap net 517 is snapped to the cap snap portion 585 and the guide member snap portion 587' and When the inner cap net 517 is placed on the cap body 3, the side portions 541 and 543 of the guide member 5〇9 are sandwiched by the cap portion 3 and the buckled portion 589 of the inner cap net 517, and the guide is clamped. The lateral portions 541, 543 of the lead member 509 are in contact with the inner wall of the cap body 3, and as described above, the lateral portions 541, 543 of the guiding member 509 are substantially fixedly disposed on the cap 26 323383 g 201208592 3 (Refer to Figure 11 (b), Figure 11 (c)). The corner portions of the respective side portions 541 and 543 are formed in an arc shape. In other words, the corner portion of the first side portion 541 or the second side portion 543 in the longitudinal direction of the front end portion (the end portion opposite to the center portion 527) is located at both ends in the vertical direction. The outer corner line of the corner portion is formed in an arc shape of 1/4 when viewed from the thickness direction of the side portions 541 and 543 (refer to reference numeral 591 in Fig. 18(a)). Further, even if the other portions of the side portions 541 and 543 (the intermediate portion in the longitudinal direction and the lower end portion in the vertical direction) are formed, the corner portions are formed in an arc shape (refer to the reference symbol in Fig. 8(a)). 593). By forming the corner portions of the respective side portions 541 and 543 into arcs, it is possible to prevent damage of the guiding members 5 to 9 due to stress concentration, and further, it is possible to prevent the guiding members 509 from being applied to the cap body 3 Or the damage caused by the wearer of the shielding plate 5 or the protective cap 1. However, as described above, the guide portion 523 of the guide member 509 is constituted by, for example, three oblong through holes 535, 537, and 539. Corresponding to this, the engaging portion 525 of the shielding plate 5 is composed of three cylindrical portions 595 (refer to Fig. 14). Further, each of the cylindrical portions 595 constituting the engaging portion 525 is engaged with each of the three through holes 535, 537, and 539 constituting the guiding portion 523 of the guiding member 509 (the cylindrical portion 595 enters). The through holes 535, 537, 539 ) ' thereby guide the shielding plate 5 to move between the storage position pi and the covering position P3. More specifically, the width of the oblong-shaped through-holes 535, 537, and 539, 27 323383 201208592 B501, is slightly larger than the outer diameter D501 of the cylindrical portion 595 (see Fig. 14(b)). Further, at both end portions of the columnar portion 595, flange-shaped flange portions 599 and 601 having an outer diameter larger than the outer diameter of the cylindrical portion 595 are integrally provided, thereby forming the engaging member 597. (Refer to Figure 14 (a)). As shown in Fig. 21(a), a semicircular plate-shaped setting portion 603 for providing the engaging member 597 is integrally provided at the upper end portion of the shielding plate 5. In the central portion of the semicircular plate-shaped installation portion 6〇3, a through hole penetrating the semicircular plate-shaped installation portion 603 in the thickness direction thereof is formed (the inner diameter is only slightly smaller than the outer diameter D501 of the cylindrical portion 595 of the engagement member 597). Large through hole) 6〇5. Further, the installation portion 603 or the through hole 605 is provided at three positions corresponding to the three through holes 535, 537, and 539 of the guide member 509. The installation portion 603 of the shielding plate 5 and the central portion 527 of the guiding member 509 enter between the flange portions 599 and 601 provided at both end portions of the cylindrical portion 595, and the setting portion 603 and the guide portion of the shielding plate 5 are guided. The central portion 527 of the lead member 509 is sandwiched by the flange portions 599 and 601, and the cylindrical portion 595 penetrates the oblong through holes 535, 537, and 539 of the guide portion 523 and the circular through hole of the installation portion 603. 605. Thereby, when the shield plate 5 moves with respect to the cap body 3 or the guide member 509, the shield plate 5 can move only in the longitudinal direction of the through-holes 535, 537, and 539 which comprise the guide part 523. Further, the engaging member (the member with a flange) composed of the cylindrical portion 595 and each of the flange portions 599 and 6〇1 is made of a first cylindrical shape having a flange 胄 599 at one end portion thereof. The member 607 is connected to the second cylindrical member _ having the flange portion 601 at the other end portion, and the mandrel is inserted along each cylindrical structure 323383 g 28 201208592: cattle 607, 609, and each of them is riveted. 609 - The body of the rivet 6u. In the case where the shielding plate 5 is located at the storage position i ρ 构件 member 597, it is abutted on each of the oblong circular through holes 535, 537, 539, but „ p.p. In a state where the shield plate 5 is located at the covering position P3, the cylindrical portion 595 of the flange-attached member 597 abuts against the lower end portions of the oblong through holes 535, 537, and 539. Further, in the protective cap 1, it is provided. There is a holding means 13 for maintaining the state in which the shielding plate 5 is located at the storage position P1 or the covering position P3. Here, the holding means 13 will be described in detail. Among the three oblong through holes 535, 537, and 539 in which the guiding portion 523 is formed The width of the two oblong through holes 537 and 539 existing on the right and left sides is fixed. On the other hand, the three oblong through holes 535, 537, and 539 in which the guide portion 523 is formed are formed in the center of the oblong shape. The through hole 535 has a very small width in the vicinity of the end portion in the longitudinal direction (see FIG. 14(b)). Thereby, the shielding plate 5 can maintain its position at the storage position P1 or the covering position P3. Figure 14 (b) shows the presence of the guiding member 509 The upper end portion 615 of the long circular through hole (central through hole) 535 is formed in an arc shape and formed in a horseshoe shape. The diameter D503 of an arc having an arc shape and formed as an upper end portion 615 of the horseshoe shape is attached to the flange. The outer diameter D501 of the cylindrical portion 595 of the member 597 is equal or slightly larger. The distance between the two end portions 617 of the upper end portion 615 is circular (the arc shape and the width of the upper end portion 615 of the hoof shape is σ. The distance L501 is smaller than the outer diameter of the cylindrical portion of the member 597 with the flange attached. Further, the structure is a flanged member located at the middle portion of the longitudinal direction of the oblong central through hole 535. When moving to the upper end portion Mg of the oblong central through-hole 535, the cylindrical portion 595 of the flange-attached member 597 is in contact with the both end portions 617 of the upper end portion 615, and the guide member 509 is - The portion is elastically deformed, and the distance L501' between the both end portions 617 is increased to the value of the outer diameter leg i of the cylindrical portion 595. Further, when the flanged member 597 is moved, the flanged member 597 is 595 position in the cylindrical position At the upper end portion 615, the both end portions 617 are restored, and the position of the flange-attached member 597 is maintained. The both end portions 617 are separated from the both end portions 617 by a predetermined distance toward the lower end side of the elongated circular through hole 535. Between the detachment portions 619, the width of the oblong through hole 535 gradually narrows from the detachment portion 619 toward the both end portions (four). That is, at the detachment portion 619 and the both end portions 61? A taper portion 621 is formed between the intermediate portions. Thereby, when the shield plate 5 is moved from the covering position P3 to the storage position ρ1, the cylindrical portion 595 of the flange-attached member 597 does not suddenly abut against the both end portions 617' of the upper end portion 615 of the horseshoe shape. Further, damage to both end portions 617 of the upper end portion 615 can be prevented. Further, the lower end portion side of the oblong through hole 535 is also formed to have the same tapered portion as the upper end side. Further, in order to make the horseshoe-shaped end portions 617 elastically deformable, a pair of through holes are formed in the vicinity of the outer ends of the horseshoe-shaped end portions 617 (the central portion 527 of the guiding member 509 is in its thickness direction of 30 323383^201208592' Two through holes 623 are formed in a circular shape. Further, the through hole 623 may be provided on the lower end side of the oblong through hole 535 instead of or in addition to the end portion side of the oblong through hole 535. Further, the above-described holding means 13 and the like may be provided in the left and right long circular through holes 537 and 539 instead of or in addition to the long circular through hole 535 in the center. However, as specifically shown in Fig. 19(a), a concave portion 625 which is slightly recessed toward the inner side of the central portion 527 is provided around the oblong through holes 535, 537, and 539 provided at the central portion 527 of the guiding member 509. . The concave portion 625 has a predetermined width and is provided to surround each of the oblong through holes 535, 537, and 539. Further, the installation portion 603' provided at the upper end portion of the shield plate 5 as described above is also provided to be slightly recessed toward the inside of the shield plate 5 (see Figs. 21(b) and 22). Three protrusions 627 are provided in the vicinity of the three recesses 625 and at the second semicircular end curve 531 of the central portion 527 of the guiding member 509. These three projections 627 protrude toward the front side (outer side) of the center portion 527 in the thickness direction of the central portion 527 of the guiding member 5〇9. In the state in which the shielding plate 5 is placed on the guiding member 509 by using the three flange-attached members 597 provided corresponding to the three through holes 535, 537, and 539, the three positions of the upper end portion of the shielding plate 5 are The guide member 5〇9 is supported by the flange-attached member 597, and the installation portion 603 provided at the upper end portion of the shield plate 5 is caught in the recess 625 provided at the center portion 527, and the inside of the shield plate 5 The surface is indirectly abutted against each of the projections 627 of the central portion 527 via, for example, a packing 631 as will be described later. 31 323383 201208592 Further, from the state in which the guide member 5〇9 provided with the shielding plate 5 is provided to the cap body 3, between the surface on the outer side of the shielding plate 5 and the semi-arc edge on the front side of the cap body 3 A slight gap 629 is formed (refer to Fig. 8). Therefore, in the normal state (the standing wearer only wears the protective cap 1), the three positions of the upper end portion of the shielding plate 5 are supported by the guiding member 509 through the flange-attached member 597, and The inner surface of the shielding plate 5 is indirectly abutted against the protrusion 627 of the central portion 527 via a pad 631 as described later, and the shielding plate 5 is supported on the guiding member 509, and the shielding plate 5 is caused. It is possible to move in an arc shape between the storage position P1 and the covering position p3. Further, in a state in which the guide member 509 provided with the shielding plate 5 is placed on the cap body 3, the direction in which the lower end of the shielding plate 5 is lifted or an external force in the direction in which the shielding plate 5 is pulled away from the wearer's face is applied to the shielding. In the case of the plate 5, there is no slight gap between the surface on the outer side of the shielding plate 5 and the arc-shaped edge on the front side of the cap body 3, and the surface on the outer side of the shielding plate 5 is, for example, separated. The cloth 631, which will be described later, indirectly abuts against the arcuate edge of the front side of the cap body 3, thereby restricting the rotation of the shield plate 5 caused by the external force. That is, the shielding plate 5 is engaged with the guiding member 509 at the upper portion of the shielding portion 603. Further, the shielding plate 5 is attached to the projection 627 and the cap at a portion on the lower side thereof (a portion of the cap body 3 covering the face of the wearer), and is sandwiched between the projection 627 and the semi-arc edge of the front side of the cap body 3. Any of the semi-arc edges of the front side of the body 3. Furthermore, it is prevented that the shielding plate 5 is greatly shaken. Further, the portion of the shield plate 5 other than the above-mentioned engaged portion is opposed to the guide member 509 or the cap body 3 with a slight gap therebetween. 32 323383 201208592 In the vicinity of the three protrusions 627 of the central portion of the guiding member 509 and its periphery, and the edge of the cap body 3 formed with the gap 629, for example, a plate-like material is adhered (low friction 4 Alpaca components, damage prevention materials) 631 (refer to Figure 13 (a)). Thereby, unlike the Q, the shielding plate 5 (excluding the setting portion 603 or the cap portion 17) is in contact with the guiding member 5〇9 or the cap body 3, so that the shielding plate 5 can have a small frictional resistance in the storage position. Between the ρι and the covering position P3, the portion 510 of the shielding plate 5 that prevents the view of the wearer of the cap 3 from being damaged is damaged. In addition, in the 21st (a) or 22nd (a), there is a mesh-like portion 510 which is an optical characteristic range according to the ANSI standard (in order for the wearer of the protective cap 1 to view the article through the shielding plate 5, optical a range of good characteristics). The mat 631A provided at the center of the guiding member 509 is formed in a zigzag shape, and is sandwiched from the lower end of the guiding member 509 toward the upper end so as to sandwich the elongate through hole 535 in the center. 631 long. Thereby, damage to the shield plate 5 can be more surely prevented. Further, the oblong through-holes 535, 537, and 539 provided in the central portion 527 of the guiding member 509, the concave portion 625 formed around the through-holes 535, 537, and 539, and the guiding member engaging portion 587 will be described in further detail. The positional relationship. As described above, the guide member catching portion 587 is further provided at four positions as shown in Fig. 18(b). The guide member snap portion 587A located at the leftmost side is substantially in the center between the center portion engagement portion 561A on the left side and the through hole 537 on the left side in the extending direction of the second semicircular end portion curve 531, and then The guide member fastening portion 587B located on the left side is in the extending direction of the second semicircular end portion 33 323383 201208592 curve 531, and is adjacent to the concave portion 625 of the left through hole 537, and the through hole 537 and the center portion on the left side. Between the through holes 535. Further, the two guide member hooking portions 587C and 587D located on the right side are symmetrically arranged with respect to the right guide member snap portions 587A and 587B with respect to a plane that is developed in the up-and-down direction by the center of the guide member 509. . Since the guiding member latching portion is provided at such a position, the interference between the guiding member engaging portion 587 and the guiding portion 523 of the guiding member 509 can be avoided, and the inner cap net 517 can be placed on the guiding The appropriate position of the member 5〇9 can be appropriately withdrawn from the net 517 by the external force applied to the cap body 3. Further, the buckled portion 633 of the ear string (the crotch cord) 515 is engaged with the buckle portion 585A provided on the leftmost side of the cap body hook portion 585 or the buckle portion 585B provided next to the left side (refer to the 15th item) (c)), and the leftward locking portion 587A of the guiding member fastening portion 587 (refer to Fig. 18(b)), and further the other earloop (cable rope) 515 is stuck. The buckle portion 633 is engaged with the buckle portion 585D provided on the rightmost side of the cap body buckle portion 585 or the buckle portion 585C provided on the second right side (refer to FIG. 15(c)), and the guide member buckle portion 587 is provided on the rightmost buckle portion 587D (refer to FIG. 18(b)), and each of the crotch cords 515 can be disposed at an appropriate position of the cap body 3 or the guiding member 509, and the protective cap 1 can be The wearer wears the protective cap 1 without any discomfort and uses the crotch cord 515 to fix the protective cap 1 to the wearer's head. In addition, as understood, since the cap fastening portion 585 is provided on the rear side of the cap body 3 and the guiding member 509 is provided on the front side of the cap body 3, the cap body locking portion 585 is located at the more guiding member latching portion 587. Close to the back side. After the buckled portion 633 of the crotch cord 515 is engaged with the cap snap portion 34 323383 201208592 585 or the guide bow member snap portion 587, the buckled portion 589 of the inner cap net 517 is engaged with the cap. The body fastening portion 585 or the guiding member fastening portion 587, whereby the crotch cord 515 (the buckled portion 633) or the inner cap net 517 (the buckled portion 589)' is integrally provided to the cap body 3 or the guide Lead member 509. Further, the inner cap net 517 can be easily detachably attached to the cap body 3 or the guide member 509, so that the inner cap net 517 which is temporarily disposed is not easily detached from the cap body 3 or the guide member 509. Further, in the protective cap 1, the respective side portions 541, 543 of the guiding member 509 and the buckled portion 633 of the crotch cord 515 are engaged by the cap portion 3 and the inner portion 517 of the inner portion 517. It is sandwiched and integrated into the cap body 3 (refer to Figure U (b)). According to the protective cap 1, the guide member 509 is provided with a central portion 527 having a spherical curved surface and formed into a plate shape, and the guide portion 523 is formed at a central portion (for example, at the center of the central portion 527 in the width direction) 527, A so-called narrow guide is formed, and the shield plate 5 can be smoothly taken out as compared with the case where the guide portion 523 is provided on the side of the center portion 527 (the end portions in the width direction). The movement (between the storage position P1 and the covering position P3) is placed. Further, according to the protective cap 1, the guide member 509 is provided with a central portion 527 and each of the side portions 541 and 543, and is formed at one of the central portions 527 in the vicinity of the respective lateral portions 541 and 543 to the central portion engaging portion 561. (561A, 561B) is engaged with the engaging portion 563 provided at one of the center portions of the cap body 3, and the side portion engaging portions 565 and 569 formed at the respective side portions 54 and 543 are engaged with each other. The side portion of the cap body 3 is engaged by the engaging portion 35 323383 201208592 567, 57. Therefore, when the shielding plate 5 is taken out, the shaking of the guiding member 509 with respect to the cap body 3 can be reduced. In other words, when the shielding panel 5 is taken out, since the shielding plate 5 is guided by the guiding members 5〇9, a moment of rotation centering on the axis ο extending in the width direction of the cap body 3 is applied to the guide. The guiding member 5〇9, and the rotational moment is transmitted from the guiding member 509 to the cap body 3, but is engaged with the central portion of the cap body 3 by the central portion of the guiding member 5() 9 of the engaging portion 563: card The joint portion 561 serves as a fulcrum, and the side portion engagement portions 565 and (10) 9 of the guide members 5〇9 of the engagement portions 567 and 571 are engaged with the side portions of the cap body 3, and the rotation torque is reduced. Shake. Further, since the side portion of the guide member 5〇9 is provided at the position of the left side and the position of the left side at two positions, the sway can be further reduced. In addition, the side portion engagement portion (through hole 581) on the rear side and the rear side side of the two side portion engagement portions 565 on the right side are included in the two side portion engagement portions 565 on the left side. Since the side portion engagement portion (through hole 581) is located in the vicinity of the rear end portion of the cap body 3, the distance between the center portion engagement portion 561 serving as the fulcrum and the side portion engagement portion 565 on the rear side becomes larger. And can further reduce the shaking. Further, according to the protective cap 1, the guiding portion 523 of the guiding member 509 is constituted by three oblong through holes 535, 537, 539, and the engaging portion 525 of the shielding plate 5 is composed of three cylinders. Each of the cylindrical portions 595 is engaged with each of the three through holes 535, 537, and 539, thereby guiding the shielding plate 5 between the storage position ρ and the covering position P3. Since it is moved, it is possible to reduce the shielding plate 5 36 323383 ^ 201208592 * with respect to the sway of the guiding member 509, and the shielding plate 5 can be smoothly moved with respect to the guiding member 509. Here, the shielding plate 5 will be described in detail with reference to Figs. 25, 26, 27 and the like. The reference numeral 〇2 in Fig. 25 is the center of the main body portion 11 of the arcuate shielding plate 5, as described above, at the center as shown in Fig. 1 (the opening of the towel 3). The center of 9) is more than 1 〇mm to 50mm (for example, about 30 )) in front. Imagine the opening plane PL of the cap 3 shown in Fig. 8. The opening plane PL is a plane in which the posture of the cap body 3 is stable when the cap body 3 is placed on the plane with the opening portion 9 facing downward and the top portion facing upward. That is, when the cap body 3 is placed on the opening plane PL, the edge (the position of the plurality of edges) of the opening portion 9 of the cap body 3, that is, the contact opening plane PL, stabilizes the posture of the cap body 3. The χγ plane ρχγ shown in Figs. 25 to 27 refers to a plane parallel to the opening plane PL of the cap body 3, and is a plane passing through the foremost lower end (front end) of the guiding member 5〇9. The χγ plane ρχγ is located above the opening plane PL of the cap 3 from about 10 mm to about 30 mm (e.g., about 25 mm) (see the eighth ® ). Further, the χγ plane Ρχγ system is developed in the front, rear, left and right directions. The pupil plane ργ ζ is a plane orthogonal to the χγ plane Ρχγ, and is a plane that is developed in the up-and-down direction by the center 〇2. The Α-Α profile is a section based on the υζ plane ΥΖ. A point at which the body portion u of the shield plate 5 intersects the χγ plane^ and the YZ plane PYZ is taken as a point pM, and a plane orthogonal to the χγ plane YZ plane Ργζ and a plane including the point PA1 is set as the Xz plane 323383 37 201208592 Ρχζ 0 Figure 25 (b) shows the ΥΖ ΡυΖΕ plane ΡυΖΕ, PyZC, PyZD, ΡυΖΕ, Pyzf. In Fig. 25(b), the YZ convolution plane Pyzb is a plane which is rotated (rotated) by 15 degrees with the YZ plane Ρυζ as the center 02. In Fig. 25(b), the YZ convolution plane Pyzc is a plane that is rotated by 30 degrees centering on the YZ plane 02 02. In Fig. 25(b), the meandering plane Pm is a plane which is rotated by 45 degrees centering on the YZ plane 02 02. In Fig. 25(b), the YZ convolution plane Ρυζ ε is a plane rotated by 60 degrees centering on the YZ plane 02 02. In Fig. 25(b), the meandering plane Pm is a plane rotated by 69 degrees centering on the YZ plane 02 02. The profile Β-Β to the profile F-F is a section of the shield plate 5 formed by the respective convolution planes. The point at which the body portion 11 of the shield plate 5 and the plane Ρχγ intersect with each of the turns planes is set as points ΡΒ1 to PF1. Here, in Fig. 25(b), the line segment 02-ΡΑ1 and the line segment 02-ΡΒ1 and the line segment 02-PC1 and the line segment 02-PD1 and the line segment 02-PE1 and the line segment 02-PF1 are equal to each other. A plane orthogonal to the XY plane Ρχγ and the convoluted YZ plane Pm and having a point PB1 is set as a convoluted XZ plane ΡχΖΒ, and a plane orthogonal to the XY plane Ρπ and the convoluted plane Pm: and a plane including the point PC1 is set as The ΧΖ plane Pxzc, a plane orthogonal to the XY plane Ρχγ and the convoluted YZ plane Pyzd, and the plane containing the point PD1 is set to the convoluted XZ plane Pxzd, and the plane orthogonal to the XY plane Ρχγ and the convoluted YZ plane Ρυζε and includes the point PE1 The plane is set to the convoluted plane Ρχζε, the plane orthogonal to the plane Ρχγ and the convoluted plane Pm, and the plane containing the point PF1 is set to the convoluted XZ plane Pxzf.

In Fig. 25, in order to prevent the pattern from being complicated, only XZ 38 323383 is displayed.

S 201208592 One of the convoluted XZ planes pXZD in the convolution plane. As described above, the shielding plate 5 is disposed on the wearer's head to cover the wearer's face, and is provided with a plate-like body portion u formed by a transparent body or a semi-transparent moon body, and on the body The lower portion η is formed by a hat wide portion (a folded portion protruding from the main body portion 11 toward the front and rear of the wearer) which is curved to protrude from the opposite side of the main body portion 11 . Further, the main body portion 11 is formed in a spherical shell shape that protrudes forward, and the dimension in the vertical direction is the longest in the center portion in the left-right direction, and the dimension in the vertical direction gradually decreases toward the end portion in the left-right direction. σ For example, as shown in Fig. 26 and Fig. 27, the size of the upper plane between the pupil plane Ρχγ and the lower end of the body portion U of the shield plate 5 is about 143 mm in the A] section, and is in the BB section. It is about 142 mm, and it is about 138 ram in the cc section, about 132_ in the D_D cross section, about 118 coffee in the E_E cross section, and about lllmm in the FF cross section. In addition, the proportion of the size reduction in the up and down direction will gradually increase. Further, in the shielding plate 5, the angle of intersection of the opening plane pl (χγ plane Ρπ) of the cap body 3 with the brim portion 17 of the shielding plate 5 is 45 degrees or more and less than 90 degrees. In other words, the brim portion 17 of the shielding plate 5 and the angle of intersection with each of the convoluted planes (the complementary angle between the plane plane Ρχ γ and the parental angle of the brim portion 17 of the shielding plate 5) are greater than 45 degrees. . Further, the angle between the opening plane pl (χγ plane ρχγ) of the cap body 3 and the brim portion 17 of the shielding plate 5 is further described, and is about 55 degrees at the γ ζ plane ργζ (in the plane A Α) (for example) 54. 9 degrees), in the section 39 323383 201208592 B_B section 'the system is about 55 degrees (for example, 55.0 degrees), in the section CC 'the system is about 55 degrees (for example, 55.3 degrees), in the section DD, It is about 57 degrees (for example, 56. 8 degrees), and is about 56 degrees (for example, 56.4 degrees) in the section eE, and is about the degree of the offense (for example, 52.2 degrees) in the section F_F. However, the above-described crossing angle is not limited to the above value. The above-mentioned intersecting angle may be in the range of 5 to 60 degrees in the AA section to the FF section, and more preferably in the range of 5 to 7 degrees. More broadly, it can range from 45 degrees to 70 degrees, and more broadly can range from 45 degrees to 90 degrees as described above. The protruding length of the brim portion 17 of the shielding plate 5 (the length protruding from the main body portion) is the longest in the center portion of the shielding plate 5 in the left-right direction, and gradually decreases toward the end portion in the left-right direction. Further, the protruding length of the hat crotch portion 17 of the shielding plate 5 (the length protruding from the main body portion U at the central portion of the shielding plate 5 or the crotch portion 17 in the left-right direction) is 1 to 8 coffees. For example, as shown in Fig. 26 and Fig. 27, the protruding length of the brim portion 17 in the cross section A_A is 40 mm, and the protruding length of the cap portion 1 γ in the cross section BB is 39 minn 'the hat portion 17 in the section CC. The protruding length is 36 mm. The protruding length of the brim portion 17 in the cross section DD is 26 mm. The protruding length of the brim portion 17 in the cross section EE is nmm, and the protruding length of the brim portion 17 in the cross section FF is Umm. In addition, the proportion of the reduced length will gradually increase. Further, the protruding length of the 'cap han portion 17 is not limited to the above value, and the protruding length of the cap > 1 portion 17 may be 4 〇 to 5 〇 mm in the Λ-A section t', and more broadly as described above. It is 30mm to 80mm, or it can be 2〇_ to 323383 40 201208592 8〇mm. In the B-B section, it can range from the fairy to the other coffee, and can range from 20 to 70 coffee, and more widely from 15 to 10,000. Further, the protruding length of the brim portion 17 may be in the range of 30 to 40 in the c_c portion, and more preferably in the range of 2 to 6 mil. Further, the protruding length of the brim portion 17 may be in the range of 20 mm to 50 mm in the D_D section, and may be in the range of 15 to 5 Å. Further, the protruding length in the cross section of the brim portion 17kD_d may be set to 10% to 30 mm. Further, the protruding length of the brim portion 17 may be in the range of 20 mm to 40 mm in the E_E cross section, and more preferably in the range of 15 mm to 45 mm. Further, the protruding length of the brim portion 17κΕ_Ε cross section may not be larger than 〇mm and may be 1 mm or less. Further, the protruding length of the brim portion may be in the range of 2 mm to 30 mm in the F-F section, more preferably in the range of 15 mm to 35 mm, and more preferably in the range of 丨 0 mm to 35 mm. Alternatively, the protruding length of the brim portion 17 in the f_f section can be eliminated. In addition, the angle of intersection between the opening plane pl of the cap body 3 and the brim portion 17 is about 55 degrees in the center portion in the left-right direction as described above, and gradually increases to 57 degrees with the end portion in the left-right direction. After the left and right, it gradually became smaller and became about 52 degrees. More specifically, in the AA section, the intersection angle is 54.9 degrees, and in the B_B section, the intersection angle becomes 55. 0 degrees, and in the CC section, the intersection angle becomes 5 5.3 degrees 'in the DD section, the intersection angle 5度。 In the EE section, the angle of intersection is 56.4 degrees, and in the FF section, the angle of intersection is 52.2 degrees. 41 323383 201208592 In addition, in the shielding plate 5, in the central portion in the left-right direction and the portion in the vicinity thereof, the main body portion 11 of the shielding plate 5 extends in the substantially vertical direction, and the end portion in the left-right direction and the vicinity thereof are The lower end of the body portion U of the shielding plate 5 is slightly inclined to be located outside.

That is, as shown in Fig. 26, in the section aa, the lower end of the body portion 11 of the shield plate 5 (the boundary between the body portion 11 and the cap portion 17) pA2 is located on the XZ plane ,, and in the section bB, The lower end PB2 of the body portion 11 of the shielding plate 5 is located on the convoluted plane pXZB. In the cross section cC, the lower end pC2 of the body portion 11 of the shielding plate 5 is located on the xz convolution plane Pxzc, as opposed to this, as shown in FIG. It is shown that in the section DD, the lower end PD2 of the body portion 11 of the shielding plate 5 is located on the outer side (oblique front side) of the convoluted plane pXZD and is formed between the XZ convolution plane and the shielding plate 5 with a gap SD. . In addition, in the section eE, the PE2 below the body portion 11 of the shielding plate 5 is located outside (outward obliquely) than the XZ turning plane pXZE, and a gap SE is formed between the XZ swirling plane ΡχΖΕ and the shielding plate 5, In the section FF, the lower end PF2 of the body portion 11 of the shield plate 5 is located on the outer side (oblique front side) of the convoluted plane pXZF, and the gap SF is formed between the convoluted plane Ρχζρ and the shield plate 5. Further, the gap SE is larger than the gap SD, and the gap SF is larger than the gap SE. In other words, the value of the gap is larger toward the side of the shield plate 5. However, in the 25th to 27th, although the ΥΖ-turn plane or the ΖΧ-turn plane is taken intermittently, only between the two ΥΖ-turn planes or the ΖΧ-turn planes taken intermittently, as understood, the shield plate The shape of 5 is used as 42 323383

S 201208592 Interpolator. According to the protective cap 1, the shielding plate 5 is configured by the main body portion 11 and the brim portion 17 which is curved toward the opposite side to the main body portion 11, and the angle of intersection between the opening plane PL of the cap body 3 and the brim portion 17 is 45. Above the degree and less than 90 degrees, the flying object that has rebounded against the main body portion 11 of the shielding plate 5 at the covering position P3 is interfered by the brim portion 17 of the shielding plate 5, and does not reach the wearer of the protective cap 1. The neck prevents the wearer's neck from hitting the protective cap 1 (for example, the neck portion not covered by the wearer wearing the top garment), and protects the wearer from being hit by the flying object. That is, the body portion 11 of the shielding plate 5 can prevent the flying object from hitting the face (the face portion from the vicinity of the hairline to the lowermost chin point of the lower jaw portion when viewed from the front), and the protective wear is prevented. The person will not be hit by flying objects. Further, by the hat crotch portion 17 of the shielding plate 5, it is possible to prevent the flying object from hitting the upper and lower chest or the abdomen, etc., from the face covered by the wearer wearing the clothes of the work clothes or the like (the lowermost end of the lower chin portion when viewed from the front side) The lower part of the chin is lowered, and the wearer is protected from flying objects. In particular, by the hat crotch portion 17 of the shielding plate 5, it is possible to prevent the wearer from wearing the clothing or the like and the clothing, such as the clothing or the like, to expose the crotch or the neck of the skin, etc. (from the front, when the chin is viewed from the front) The lower end of the lower chin to the neck before the clavicle (the lower chin, the delta triangle, the carotid triangle, the rib triangle, the sternocleidomast rib, the lateral neck triangle, the posterior neck, the large supraclavicular fossa, the small supraclavicular fossa , neck cuts, etc.)), and protect the wearer from being hit by flying objects. 43 323383 201208592 Further, according to the protective cap 1, the size of the upper portion of the main body portion 1 is gradually smaller as it goes toward the end portion of the main body portion 11 in the left-right direction, and the protruding portion of the brim portion 17 protrudes from the main body portion U. The length gradually decreases as it goes toward the end in the left-right direction. As a result, as shown in the respective cross-sectional views of Fig. 26 and Fig. 25, the size of the upper and lower sides of the shielding plate 5 at the covering position P3 becomes gradually smaller (182 mm to 121 mm) as it goes toward the end portion in the left-right direction. Therefore, even if the wearer of the protective cap j of the shielding plate 5 at the covering position p3 bends the neck in the lateral direction, the cap portion 17 can be prevented from abutting against the neck of the wearer of the cap 4, and the wearer does not feel no Comfortably, by providing the brim portion 17, the strength of the shielding plate 5 can be ensured. The protruding length of the middle sill portion 17 protruding from the main body portion 11 gradually decreases as it goes toward the end portion in the left-right direction, but matches the contour of the lower half of the face (the lower jaw and the lower lychee when viewed from the front) The contour of the lower jaw is configured to make the protruding length gradually smaller as it goes toward the end in the left-right direction. Therefore, it is possible to prevent the flying object from hitting the wearer and protect the wearer from being hit by the flying object. In addition, according to the protective cap, by setting the angle of the opening plane of the cap body 3 to the wide portion η of the cap to be about 52 to 57 degrees, the wearing mask 5 can be placed at the covering position fP3 "protection of the wearer's Good view. In other words, when the wearer of the protective cap i at the covering position p3 moves the line of sight to the direction of the wide portion 17 (obliquely downward), the direction in which the two sides of the (four) portion 17 are in the thickness direction substantially coincides with the direction of the line of sight. Therefore, in the eyes of the wearer, the wide portion 17 of the cap will be in a state of being the smallest or close to this. Furthermore, the wearer's vision is good. " 323383

S 201208592 In addition, according to the protective cap 1, the angle of intersection between the opening plane PL of the cap body 3 and the cap portion W is about 55 degrees in the center portion in the left-right direction, and gradually changes toward the end portion in the left-right direction. When it is about 57 degrees, it is gradually smaller and becomes about 52 degrees. Therefore, when the angle is, for example, about 55 degrees, it is constant, and the brim portion π is a shape close to a substantially flat surface. In addition, the case where the flying object hitting the main body portion 11 of the shielding plate 5 at the covering position p3 and hitting the cap portion I of the shielding plate 5 is constant at a cross angle of about 55 degrees. It will rebound to the front of the shield plate 5. Thereby, it is possible to more reliably protect the flying object from hitting the shoulder of the wearer of the protective cap 1 and the like. In addition, since the size of the upper and lower sides of the shielding plate 5 is short in the left-right direction, the flying object that hits the shielding plate on the end side in the left-right direction and rebounds, and the possibility of hitting the wearer becomes high. However, as described above, in the end portion in the left-right direction and the portion in the vicinity thereof, the main body portion 11 is slightly inclined so that the lower end of the main body portion 11 of the shielding plate 5 is located outside, so that the shielding plate at the covering position P3 is hit. The flying object 'bounced by the main body portion 11 of the fifth portion bounces slightly upward toward the front side of the shielding plate 5 as compared with the case where the main body portion 11 extends in the vertical direction. Thereby, it is possible to surely prevent the flying object from hitting the crotch portion or the foot of the wearer of the protective cap 1. The test results of the protective cap 1 are explained here. As shown in Fig. 28, the test is to arrange a human head model PM (refer to Fig. 30), a protective cap 1, a shielding plate (a shielding plate 5 existing at a covering position) 5, and a spray can SPY, and This was carried out by ejecting the water-repellent paint for 10 seconds toward the shield plate 5. For the head model, the test heads of the size of the ergonomics of the aeromedical experimental team "Aeronautical self-defense team members' physical measurements, equipment, etc." (1972) are used in accordance with the model of 45 323383 201208592 JIST8151. . In the case of spray, the horizontal line is indicated by the reference symbol HL shown in the Creative Color Spray Gloss 66 Fresh Green A of the Asahipen Co., Ltd., and the reference symbol VL is the vertical line. The reference symbol SPB schematically shows the ejection area of the paint. The test results are shown in Figure 29. The protruding length of the protruding length brim portion 17 of Fig. 29 protrudes from the main body portion 11, and the crossing angle of Fig. 29 is the intersection of the opening plane PL (XY plane Ρπ) of the cap body 3 with the brim portion 17 of the shielding plate 5. angle. The 〇 symbol shown in Fig. 29 is that there is no paint attachment on the face or the head and neck of the head model. As long as it is a 〇 symbol, there is no coating on the face of the crotch and the face other than the face (the part above the neck), so the purpose can be fully achieved. The △ symbol shown in Fig. 29 is the majority of the paint-free body on the face or the head and neck of the head model. However, at the root of the neck (the boundary between the neck and the carcass and its vicinity) there is a paint attachment. The △ symbol should be used in moderation. The X symbol shown in Fig. 29 is attached to the neck or neck of the human head model. Of course, it should be controlled. Further, in Fig. 29, only the protruding length of the central portion is shown as the protruding length, but in the case where the protruding portion of the central portion is 80 mm, the left and right sides 46 323383

S 201208592 The protruding length in the both end portions is, for example, 35 mm, and in the case where the protruding portion in the center portion is 70 mm, the protruding length in the both end portions in the left-right direction is, for example, 35 mm, and the protruding length in the center portion In the case of 40 mm, the protruding length in the both end portions in the left-right direction is, for example, 35 mm, and in the case where the protruding portion in the center portion is 30 mm, the protruding length in the both end portions in the left-right direction is, for example, 1 Omm, and In the case where the protruding length of the center portion is 20 mm, the protruding length in the both end portions in the left-right direction is, for example, 10 inches. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a wearer wearing a protective cap of a shielding plate at a storage position. Fig. 2 is a front elevational view showing the wearer wearing a protective cap with the shielding plate at the storage position. Fig. 3 is a side view showing the wearer wearing the protective cap of the shielding plate at the storage position. Fig. 4 is a perspective view showing the wearer wearing the protective cap of the shielding plate at the storage position. Figure 5 is a front elevational view of the wearer wearing the protective cap of the shelter in the stowed position. Fig. 6 is a side view showing the wearer wearing the protective cap of the shielding plate at the storage position. Fig. 7 is an exploded perspective view showing the schematic configuration of the protective cap. Fig. 8 is a cross-sectional view showing a schematic configuration of a protective cap. Figure 9 is a front view of the protective cap and is the IX arrow diagram in Figure 8. 47 323383 201208592 Figure 10 is a bottom view of the protective cap and is the arrow diagram in Figure 8. Figs. (a) to (c) are diagrams showing the state in which the cap body and the guide member are engaged, and the state in which the cap body and the display line or the inner cap net are engaged. The 12th ® is a view showing an assembly of the guiding member and the shielding member, (a) is a front view of the assembly, and (b) is a Mm arrow diagram of (a). The 13th ® is a diagram of the assembly of the guiding member and the shielding plate, (a) is the arrow diagram of Fig. 12(a), and (b) is the XII ΙΒ_ΧΠ IB of Fig. 12(b). Sectional view. Fig. 14 is a view showing the details of the guide portion and the like in the guide member, wherein (a) is an enlarged view of the χινΑ portion of Fig. 13(b), and (b) is an XIVB arrow of (a). Fig. 15 is an enlarged view of the χιΒ portion of Fig. 18(b). Fig. 15 is a schematic view showing the outline of the cap body, (a) is a front view, and (b) is an xvb arrow diagram of (a) , (c) is the xvc arrow diagram of (a). Fig. 16 is a view showing the engaged portion provided at the side portion of the cap body, (c) is an xvic arrow diagram of (a), and (b) is a χνΐΒ arrow diagram of (c), (d) It is a diagram showing the XVID-XVID profile of (b). Fig. 17 is a view showing the engaged portion provided at the center portion of the cap body, and (b) is a χνπΒ arrow diagram of (a). Figure 18 is a view showing the guide member, (a) is a front view, and (匕) is an XVnIB arrow diagram of (a). 323383 48 201208592 Figure 19 is a diagram showing the guide member, (a) is the XIXA arrow diagram of the a diagram (^), and (b) is the diagram of the χιχΒ_χιχβ section of (a), and (c) is (a) A diagram of the xixc-xixc profile. Figure 20 is a view showing the guiding member snap portion, (c) is the arrow xxc of (a), (b) is the arrow diagram of (c), and (d) is the display (b) The diagram of the XXD-XXD section, (g) is a diagram of the XXF arrow diagram of (1) is the (XX), and (1) is the diagram of the XXH-XXH section showing (1). The figure showing the shielding plate, (a) is the front view, is the xxIB j head image of (a), (c) is the (b) iXxic arrow diagram, and (d) is the XXID_XXID section of the display (b) Fig. 22 is a view showing a shielding plate, (a) is an XIIIA arrow diagram of Fig. 21 (a), and (b) is a diagram of a ΧΧΠΒ-χχπΒ section of Fig. 21 (a). The figure is a sectional view showing the χχιιχιχ 第 of Fig. 21(a). Fig. 24 is a cross-sectional view showing the shielding plate and is a view corresponding to Fig. 23. ' Fig. 25 shows the specific shape of the shielding plate. Fig. (b) is an XXVB arrow diagram of (a) and is the same as Fig. 21(b), and (c) is a diagram showing the AA profile of (b) and is the same as Fig. 22 ( b) the same figure. The brother 26 figure shows the specific shape of the shielding plate The figure is a diagram of the AA section, the BB section, and the CC section of the πth figure (b). The figure 27 is a specific shape diagram showing the shielding plate, and is the DD section of the 25th figure 323383 49 201208592 (b), Fig. 28 is a view showing an arrangement state of a protective cap or the like in an experiment for performing a protective function of a shield plate. Fig. 29 is a view showing an experimental result of a protective function of a shield plate. Figure 30 is a diagram showing a human head model. [Main component symbol description] 1 Protective cap 3 Cap 5 Masking plate 7 Guide means 9 Opening 10 Cap portion 11 Main body portion 13 Holding means 15 Concave portion 17 Cap portion 509 Guide Guide member 510 portion 511 assembly 513 impact absorption member 515 lower reel 517 inner cap net 519 cap body portion 523 guide portion 525 engagement portion 527 central portion 529 first semicircular end curve 531 second semicircular end curve 533 space 535 through hole 537 through hole 539 through hole 541 first side portion 543 second side portion 545 lower left intersection 547 lower central intersection 549 lower right intersection 551 left end 553 End 555 Upper left intersection 557 Upper central intersection 559 Upper right intersection 50 323383 201208592 561 ' 561A Center portion engagement portion 563 Center portion engagement portion 565 First side portion engagement portion 567 The first side portion is Engagement portion 569 second side portion engagement portion 571 second side portion engagement portion 573 first central portion engagement portion 575 second central portion engagement portion 579 front through hole 581 rear through hole 583 protrusion 585 585A, 585B, 585C, 585D cap snaps 587, 587A, 587B, 587C, 587D guide member snaps 589 snapped portion 595 cylindrical portion 597 flanged member 599 flange portion 601 flange portion 603 installation portion 605 through hole 607 first cylindrical member 609 second cylindrical member 611 rivet 615 upper end portion 617 both end portions 619 detachment portion 621 oblique tapered portion 623 through hole 625 concave portion 627 protrusion 629 gap 631 padding 631A padding 633 Knucked portion PL Opening plane C1 Axis D501 Outer diameter D503 Diameter EY Eye L11, L21, L3 Bu L32 Optical path length L501 Distance 01 > 02 Center P1 Storage position P3 Positions 323 383 51 201 208 592

PA2, PB2, PC2, PD2, PE2, PF2 PL opening plane PM

SD, SE, SF gap SPY lower end human head model spray can 32338: 52

Claims (1)

201208592 VII. Patent Application Range: The L-type shielding plate is a shielding plate that is disposed on the head of the wearer's head and covers the wearer's face. The system is composed of: a body portion and a hat portion. The main body portion is formed in a curved plate shape by a transparent body or a translucent body, and the cap portion is curved and protruded downward from the main body portion below the main body portion; the body portion is formed as a ball protruding forward The shell shape, and the size in the up-and-down direction becomes longer in the center portion in the left-right direction, and becomes smaller as it goes toward the end portion in the left-right direction; the angle of intersection between the opening plane of the cap body and the above-described brim portion is 45 degrees. The length of the arm portion in the left-right direction is less than 90 degrees, and the length of the arm portion protruding from the main body portion is from 1 to 80, and the length of the brim portion protruding from the main body portion is The central portion of the direction becomes longer and gradually becomes smaller as it goes toward the end portion in the left-right direction. 2. The shielding plate according to claim β, wherein the angle between the opening plane of the cap body and the brim portion is about 55 degrees in the central portion, and gradually increases in the direction of the left and right sides. After becoming about 57 degrees, it gradually becomes smaller and becomes a crime. 3. The shielding plate according to the first or second aspect of the invention, wherein the main body portion extends substantially in the up-and-down direction in the central portion in the left-right direction and the vicinity thereof, and the end portion in the left-right direction and the vicinity thereof The lower end of the body portion extends slightly obliquely on the outer side. A protective cap having a protective cap having: 323383 1 201208592 a shielding plate according to any one of claims 1 to 3; the cap body; and a guiding means for guiding the shielding plate The shielding plate is movable between a storage position accommodated in the cap body and a covering position where the shielding plate covers the wearer's face. 323383 S