Protective cap

Abstract

To provide a protective cap which prevents a visor from being accidentally removed from a cap body and allows the visor to be easily installed on the cap body, and has good assembly properties between the cap body and the visor.SOLUTION: There is provided a protective cap 1 including: a cap body 3 including a cap body main body 9, a first engaging portion 11 provided in a front central portion 19, and second engaging portions 13 provided in a front left end portion 21 and a front right end portion 23; a visor body portion 39; and a visor 7 including a first engaged portion 41 that is provided at a rear central portion 45 and is locked by being fitted into the first engaging portion 11; and second engaged portions 43 that are provided at a rear left end portion 47 and a rear right end portion 49 and are locked by being fitted into the second engaging portions 13, in which the visor 7 is attached to the cap body 3 by rotating the visor 7.SELECTED DRAWING: Figure 16

Description

[Technical field]

[0001] The present invention relates to a protective hat having a visor attached to a hat body. [Background technology]

[0002] Conventionally, a protective cap with a visor that can be easily attached and detached is known (see Patent Document 1). The protective cap described in Patent Document 1 is configured to include a cap body and a visor, and the visor is fastened to the cap body at at least three points, namely, fastening means at the center of the front end face of the cap body and fastening means on both the left and right sides.

[0003] The locking means in the center of the front end surface prevents the visor from moving up and down and left and right relative to the cap body. The locking means on both the left and right sides have locking claws that prevent the visor from slipping out forward relative to the cap body. In addition, the conventional protective cap described in Patent Document 1 allows the visor to be removed from the cap body by pulling it strongly.

[0004] Also, a conventional protective cap is known in which a visor is releasably fixed to a cap body using an insert member inserted into a through hole provided in the cap body (see Patent Document 2). The visor in the protective cap described in Patent Document 2 is fixed using a screw or a harpoon-shaped tip. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 4753646 [Patent Document 2] Patent No. 6785493 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the protective cap described in Patent Document 1, the visor can be removed by pulling it strongly, so there is a risk that the visor may suddenly come off from the cap body when a force is applied to pull the visor forward.

[0007] In the protective cap described in Patent Document 2, when the visor is attached to the cap body, the visor must be spread out in the left-right direction and installed in the through-hole of the cap body, and further, the visor must be screwed together, which makes assembly difficult.

[0008] To provide a protective cap having a visor attached to a cap body, which prevents the visor from being accidentally removed from the cap body, and allows the visor to be easily attached to the cap body and has good assembly properties between the cap body and the visor. [Means for solving the problem]

[0009] A protective cap according to an aspect of the present invention includes a cap body including a cap body main body portion formed in a bowl shape, a first engaging portion provided in a front center portion of an edge of an opening of the cap body main body portion, and a second engaging portion provided in a front left end portion and a front right end portion of the cap body main body portion near the opening of the cap body main body portion, a visor main body portion formed in a plate shape, a first engaged portion provided in a rear center portion of the visor main body portion and engaged with the first engaging portion by fitting into the first engaging portion, and a second engaged portion provided in a rear left end portion and a rear right end portion of the visor main body portion. and a visor configured to include a second engaged portion that engages with the second engaged portion by fitting into an engaging portion, and the visor is configured such that, from a state in which the rear side of the visor is positioned downward and the front side of the visor is positioned upward and the first engaged portion is engaged with the first engaged portion, the visor is rotated relative to the hat body around the engagement portion between the first engaged portion and the first engaged portion as the center of rotation, so that the first engaged portion is engaged with the first engaged portion and the second engaged portion is engaged with the second engaged portion, and the visor is installed on the hat body.

[0010] A protective cap according to an aspect of the present invention is a cap comprising: a cap body main body portion formed in a bowl shape; a first engagement portion constituted by a central convex portion provided in a front central portion of an opening edge of the cap body main body portion; and a second engagement portion constituted by a left protrusion protruding from a front left end portion of an inner wall surface of the cap body main body portion near the opening of the cap body main body portion and a right protrusion protruding from a front right end portion of an inner wall surface of the cap body main body portion near the opening of the cap body main body portion; a visor main body portion formed in a plate shape; and a central recess portion provided in a rear central portion of the visor main body portion. a first engaged portion which is engaged with the first engaging portion by fitting a central convex portion of the first engaging portion into the central concave portion, and a second engaged portion which is engaged with the second engaging portion by fitting a left through hole in a left plate-shaped portion protruding upward from the rear left end portion of the visor main body and a right through hole in a right plate-shaped portion protruding upward from the rear right end portion of the visor main body, and a left protrusion of the second engaging portion fitting into the left through hole and a right protrusion of the second engaging portion fitting into the right through hole.

[0011] In the protective cap according to this aspect of the present invention, the cap body main body is provided with a cap body joint portion, which is provided on the front side of the edge of the opening of the cap body main body, from the front left end portion to the front right end portion, and the visor main body is provided with a visor joint portion, which is provided on the rear side of the visor main body, from the rear left end portion to the rear right end portion, and is configured so that the cap body joint portion and the visor joint portion come into contact with each other when the visor is installed on the cap body, and the central recess of the first engaged portion is configured to include a rear central portion of the visor joint portion and a central recess forming protrusion protruding downward from the visor main body at this rear central portion, and the central recess forming protrusion extends in an elongated manner along the arc of the rear central portion.

[0012] In the protective cap according to this aspect of the present invention, the cap body main body is provided with a third engaging portion composed of an elongated arc-shaped diagonal left front portion and an elongated arc-shaped diagonal right front portion at an edge of an opening of the cap body main body, the diagonal left front portion being provided between the front center portion and the front left end portion, and the diagonal right front portion being provided between the front center portion and the front right end portion, and the visor body is provided with a third engaged portion composed of a left recess and a right recess into which the third engaging portion fits when the visor is installed on the cap body, and engaged with the third engaging portion. the left recess of the third engaged portion is configured to include a diagonal left rear portion of the visor joint and a left recess-forming protrusion protruding rearward from the visor main body at the diagonal left rear portion, the right recess of the third engaged portion is configured to include a diagonal right rear portion of the visor joint and a right recess-forming protrusion protruding rearward from the visor main body at the diagonal right rear portion, the left recess-forming protrusion extends in an elongated manner along the arc of the diagonal left rear portion, and the right recess-forming protrusion extends in an elongated manner along the arc of the diagonal right rear portion.

[0013] In a protective cap according to an aspect of the present invention, the cap body main body is provided with a fourth engaging portion consisting of a pair of left side protrusions and a pair of right side protrusions, the pair of left side protrusions protruding from the inner wall surface of the cap body main body near the opening of the cap body main body at a front left end portion of the cap body main body with the left protrusions entering inward, and the pair of right side protrusions protruding from the inner wall surface of the cap body main body near the opening of the cap body main body at a front right end portion of the cap body main body with the right protrusion entering inward, and the visor main body is provided with a fourth engaged portion consisting of the left plate-shaped portion and the right plate-shaped portion, and when the visor is installed on the cap body, the left plate-shaped portion fits into the pair of left side protrusions and the right plate-shaped portion fits into the pair of right side protrusions, so that the fourth engaged portion is engaged with the fourth engaging portion.

[0014] In the protective helmet of this aspect of the present invention, a wearing body is configured to be installed on the second engaging portion, and by installing the second engaging portion on the wearing body, the second engaged portion is engaged with the second engaging portion and is configured not to come off from the second engaging portion. Effect of the Invention

[0015] According to the present invention, it is possible to provide a protective cap having a visor attached to the cap body, which prevents the visor from accidentally coming off the cap body, and allows the visor to be easily attached to the cap body and provides good assembly of the cap body and the visor. [Brief description of the drawings]

[0016] [Figure 1] 1 is a diagram showing a protective cap according to a first embodiment of the present invention (protective cap in use). [Diagram 2] 1 is a cross-sectional view of a protective cap according to a first embodiment of the present invention (protective cap in use). [Diagram 3] 1 is a cross-sectional view of a protective cap according to a first embodiment of the present invention (a protective cap in a used state with a wearing part removed). [Figure 4] 1 is a cross-sectional view of a protective cap according to a first embodiment of the present invention (protective cap in a stored state). [Diagram 5] FIG. 1 is a perspective view of a visor of a protective cap according to a first embodiment of the present invention. [Figure 6] 6 is a view taken along the arrow VI in FIG. 5. [Figure 7] FIG. 7 is a view taken along the arrow VII in FIG. 5. [Figure 8] 8 is a view taken along the arrow VIII in FIG. 5. [Figure 9] 6 is a view taken along the arrow IX in FIG. 5. [Figure 10] 6 is a view taken along the X arrow in FIG. 5. [Figure 11] XI-XI cross-sectional view of FIG. 5. [Figure 12] 1 is a view showing a helmet body of a protective helmet (protective helmet in use) according to a first embodiment of the present invention. [Figure 13] 13 is a view taken along the arrow XIII in FIG. 12. [Figure 14] 13 is a view taken along the arrow XIV in FIG. 12. [Figure 15] 13 is a cross-sectional view taken along the line XV-XV in FIG. 12. [Figure 16] 3A to 3C are diagrams showing an operation of installing a visor on a cap body in the protective cap according to the first embodiment of the present invention. [Figure 17] 3A to 3C are diagrams showing an operation of installing a visor on a cap body in the protective cap according to the first embodiment of the present invention. [Figure 18] 3A to 3C are diagrams showing an operation of installing a visor on a cap body in the protective cap according to the first embodiment of the present invention. [Figure 19] 3A to 3C are diagrams showing an operation of installing a visor on a cap body in the protective cap according to the first embodiment of the present invention. [Figure 20] 3A to 3C are diagrams showing an operation of installing a visor on a cap body in the protective cap according to the first embodiment of the present invention. [Figure 21] FIG. 2 is a diagram showing a lower helmet body constituent of the protective cap according to the first embodiment of the present invention, and a visor installed on the lower helmet body constituent (protective cap). [Figure 22] (a) is a view showing a XXIIA-XXIIA cross section in Fig. 21, (b) is a view showing a XXIIB-XXIIB cross section in Fig. 21, (c) is a view showing a XXIIC-XXIIC cross section in Fig. 21, (d) is a view showing a XXIID-XXIID cross section in Fig. 21, (e) is a view showing an example of a left protrusion and a right protrusion constituting the second locking portion of the cap body, and (f) is a view seen from the arrow XXIIF in (e). [Figure 23] 23A is a cross-sectional view taken along line XXIIIA-XXIIIA in FIG. 21, and FIG. 23B is a view corresponding to FIG. 23A, showing modified examples of the left and right plate-shaped portions that constitute the second engaged portion of the visor. [Figure 24] FIG. 10 corresponds to FIG. 9 and shows a modified example of a visor constituting the protective cap according to the first embodiment of the present invention. [Diagram 25]FIG. 11 is a diagram showing a protective cap according to a second embodiment of the present invention. [Figure 26] FIG. 4 is a cross-sectional view of a protective cap according to a second embodiment of the present invention. [Figure 27] FIG. 11 is a cross-sectional view of a protective cap (with the wearing body removed) according to a second embodiment of the present invention. [Figure 28] FIG. 11 is a perspective view of a visor of a protective cap according to a second embodiment of the present invention. [Figure 29] FIG. 11 is a view showing a helmet body of a protective helmet according to a second embodiment of the present invention. [Diagram 30] FIG. 4 is a cross-sectional view of a protective cap according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] [First embodiment] As shown in Figures 1 to 3, a protective cap (helmet; for example, an industrial helmet) 1 according to a first embodiment of the present invention is configured to include a cap body 3, a wearing body 5, and a visor 7. Moreover, the protective cap 1 is formed symmetrically.

[0018] Here, a specific direction in the protective cap 1 is defined as the left-right direction, a specific direction perpendicular to the left-right direction is defined as the front-rear direction, and a direction perpendicular to the left-right direction and the front-rear direction is defined as the up-down direction (height direction). The left-right direction, front-rear direction, and up-down direction are directions as seen by a person wearing the protective cap 1. The left-right direction is the direction connecting the left end and right end of the cap body 3, and the front-rear direction is the direction connecting the front end and rear end of the cap body 3. The up-down direction is the direction connecting the center of the opening at the bottom end of the cap body 3 and the top of the cap body 3. The left-right direction and the front-rear direction are, for example, horizontal directions.

[0019] The cap body 3 is formed of a material such as a hard synthetic resin having a rigidity that can be regarded as a rigid body. The cap body 3 is made of, for example, ABS resin. As shown in Figs. 1 to 4 and 12 to 15, the cap body 3 is composed of a cap body main body 9, a first locking portion 11, and a second locking portion 13. The cap body main body 9 is formed in a bowl shape with a predetermined thickness.

[0020] As shown in FIG. 13 etc., the first locking portion 11 is provided in an arc-shaped front central region 19 that is convex toward the front side of an edge 17 of an opening 15 of the cap body 9. The first locking portion 11 is provided along the arc of the front central region 19. The second locking portion 13 is provided in a front left end portion 21 and a front right end portion 23 of the cap body 9 near the opening 15 of the cap body 9. The second locking portion 13 is provided away from the first locking portion 11.

[0021] Since the cap body 9 is formed in a bowl shape, the cap body 9 is formed in a roughly hemispherical shell shape. Since the cap body 9 is formed in a hemispherical shell shape, an annular opening (a roughly circular opening) 15 is formed at the lower end of the cap body 9.

[0022] A hemispherical shell shape is one of two solid shapes obtained when a spherical shell shape solid is formed by removing a second sphere of a specified radius from a first sphere of a specified radius, and then divided by a specified plane. The radius of the second sphere is slightly smaller than the radius of the first sphere, and the centers of the first sphere and the second sphere are coincident with each other. The specified plane includes the centers of the first sphere and the second sphere.

[0023] Furthermore, the cap body 9 is appropriately shaped according to the shape of a person's head. That is, the cap body 9 is not formed in a perfect hemispherical shell shape, but is formed in a hemispherical shell shape close to the shape of a hemispherical shell.

[0024] As shown in Fig. 3, Fig. 4, etc., the cap body 3 is configured to include a lower cap body constituent (cap body lower part) 25, an upper cap body constituent (cap body upper part) 27, and a hinge part constituent 29. The lower cap body constituent 25 constitutes a lower part of the cap body 3, and the upper cap body constituent 27 constitutes an upper part of the cap body 3. A visor 7 is provided on the lower cap body constituent 25. The visor 7 protrudes forward from a front end part of the opening 15 of the cap body 3 (lower cap body constituent 25).

[0025] The hinge part constituent 29 is rotatably engaged at a predetermined portion (lower cap body constituent engaging portion) 31 with a predetermined portion (first hinge part constituent engaging portion) 33 of the lower cap body constituent 25. In addition, the hinge part constituent 29 is rotatably engaged at another predetermined portion (upper cap body engaging portion) 35 with a predetermined portion (second hinge part constituent engaging portion) 37 of the upper cap body constituent 27.

[0026] The lower cap body component 25 and the upper cap body component 27 are engaged via the hinge component 29, so that the upper cap body component 27 and the hinge component 29 are configured to move relative to the lower cap body component 25 between the usage state (cap body formed state) and the storage state.

[0027] The use state is a state in which the bowl-shaped cap body 3 is formed by the lower cap body constituent 25 and the upper cap body constituent 27, as shown in Fig. 1 to Fig. 3 etc. The stored state is a state in which the upper cap body constituent 27 and the hinge part constituent 29 are stored in the lower cap body constituent 25, as shown in Fig. 4. The movement of the upper cap body constituent 27 and the hinge part constituent 29 described above includes not only parallel movement but also rotation that changes the posture.

[0028] 1 etc., the hinge constituent 29 does not particularly protrude from the outer convex surface of the cap body 3 when in use. That is, when in use, the external appearance of the protective cap 1 looks as if the hinge constituent 29 does not exist.

[0029] Moreover, even in a use state, a storage state, or a state between the use state and the storage state (a state in the middle of transition), the lower cap body component 25, the upper cap body component 27, and the hinge portion component 29 continue to be engaged with each other. That is, the lower cap body component 25, the upper cap body component 27, and the hinge portion component 29 are configured not to separate from each other.

[0030] The lower cap body constituent 25 and the upper cap body constituent 27 are formed in such a manner that the bowl-shaped cap body 3 is divided into two parts by a plane that includes the center of the bowl-shaped cap body 3 and is perpendicular to the height direction of the bowl-shaped cap body 3. Since the first engagement portion 11 and the second engagement portion 13 of the cap body 3 are small parts of the cap body 3, it can be said that the cap body 3 is also formed in a bowl shape similar to the cap body main body portion 9.

[0031] The lower cap body constituent 25 is made up of the lower part of the bowl-shaped cap body 3 when the bowl-shaped cap body 3 is divided along a predetermined plane. The upper cap body constituent 27 is made up of the upper part of the bowl-shaped cap body 3 when the bowl-shaped cap body 3 is divided along the predetermined plane. The predetermined plane is a plane perpendicular to the up-down direction (a plane extending in the horizontal direction). In addition, the predetermined plane is located in the center (the center or near the center) of the bowl-shaped cap body 3 in the up-down direction.

[0032] As a result, the lower cap body constituent 25 is spherical (shaped like a curved portion of a spherical band), and the upper cap body constituent 27 is spherical crown (shaped like a curved portion of a spherical crown). The height dimension value of the lower cap body constituent 25 is slightly larger than half the height dimension value of the bowl-shaped cap body 3. For example, the height dimension value of the lower cap body constituent 25 is about 50.1% to 60% (preferably 51% to 55%, more preferably 51% to 53%, even more preferably 51.5% to 52.5%, and even more preferably 52%) of the height dimension value of the bowl-shaped cap body 3.

[0033] The hinge part constituent 29 is engaged with the lower cap body constituent 25 at a front end portion of the lower cap body constituent 25, and is engaged with the upper cap body constituent 27 at a front end portion of the upper cap body constituent 27. Note that the hinge part constituent 29 may be configured to be engaged with the lower cap body constituent 25 at a rear end portion of the lower cap body constituent 25, and to be engaged with the upper cap body constituent 27 at a rear end portion of the upper cap body constituent 27.

[0034] When the cap body 3 transitions from a use state to a storage state, and from the storage state to a use state, the hinge portion constituent 29 is adapted to rotate around a predetermined axis extending in the left-right direction relative to the lower cap body constituent 25.

[0035] When the cap body 3 transitions from a use state to a storage state, and from the storage state to a use state, the upper cap body constituent 27 is adapted to rotate around a predetermined axis extending in the left-right direction relative to the hinge portion constituent 29.

[0036] Moreover, when the cap body 3 transitions from a use state to a storage state, or from the storage state to a use state, the upper cap body constituent 27 is adapted to rotate (turn) about a predetermined axis extending in the left-right direction relative to the lower cap body constituent 25. Furthermore, when the cap body 3 transitions from a use state to a storage state, or from the storage state to a use state, the upper cap body constituent 27 is adapted to move parallel to the lower cap body constituent 25 in the front-rear and up-down directions in addition to the above-mentioned rotation.

[0037] When the stored state is viewed from the left-right and front-back directions, only the lower helmet body component 25 is visible, and the upper helmet body component 27 and the hinge portion component 29 housed inside the lower helmet body component 25 are not visible.

[0038] The visor 7 is separate from the cap body 3. The visor 7 is made of synthetic resin such as polycarbonate (PC). As shown in Figs. 5 to 11, the visor 7 is configured to include a visor main body 39, a first locked portion 41, and a second locked portion 43.

[0039] The visor body 39 is formed in a plate shape. The first locked portion 41 is provided along the arc of a rear central portion 45 (see FIG. 6, etc.) of the visor body 39, which is an arc-shaped portion recessed toward the front. The first locked portion 41 is fitted into the first locking portion 11 of the cap body 3, thereby being locked to the first locking portion 11 (see FIG. 3, etc.).

[0040] The second locked portions are provided at a rear left end portion 47 and a rear right end portion 49 of the visor body portion 39 (see FIG. 6, etc.). The second locked portions are engaged with the second locking portions 13 of the cap body 3 by fitting into the second locking portions 13 (see FIG. 3, etc.).

[0041] As shown in Figure 16, the state in which the rear side of the visor 7 is positioned downward and the front side of the visor 7 is positioned upward, the visor 7 is tilted at an angle, and the first locked portion 41 is engaged with the first locking portion 11 is the pre-visor installation state.

[0042] 17 and 18, from the state before the visor is installed, the visor 7 is rotated with respect to the cap body 3 around the engagement portion between the first locking portion 11 and the first locked portion 41 as the center of rotation so that the rear side of the visor 7 faces upward. By this rotation, the first locked portion 41 is locked to the first locking portion 11, and the second locked portion 43 is locked to the second locking portion 13. Then, the protective cap 1 is configured so that the visor 7 is installed integrally with the cap body 3.

[0043] 12 to 15, the first engagement portion 11 of the cap body 3 is configured with a narrow and elongated arc-shaped central protrusion 51 provided in the front central region 19 along the arc of the front central region 19. The central protrusion 51 protrudes slightly forward from the front central region 19.

[0044] In addition, the second locking portion 13 of the cap body 3, which is provided away from the first locking portion 11, is composed of a left protrusion 53 and a right protrusion 55. The left protrusion 53 protrudes toward the center of the cap body body 9 from the front left end portion 21 (for example, the center of the front left end portion 21) of the inner wall surface of the cap body body 9 near the opening 15 of the cap body body 9. The right protrusion 55 protrudes toward the center of the cap body body 9 from the front right end portion 23 (for example, the center of the front right end portion 23) of the inner wall surface of the cap body body 9 near the opening 15 of the cap body body 9.

[0045] As shown in Fig. 9 and other figures, the first locked portion 41 of the visor 7 is configured as a narrow, elongated central recess 59. The central recess 59 is provided along the arc of the rear central portion 45, which is an arc-shaped portion recessed toward the front side of the visor main body 39. The central protrusion 51 of the cap body 3 fits into the central recess 59 of the visor 7, thereby causing the first locked portion 41 of the visor 7 to be locked to the first locking portion 11 of the cap body 3 (see Fig. 3, Fig. 22(a) and other figures).

[0046] As shown in Fig. 5 etc., the second locked portion 43 of the visor 7 is composed of a left through hole 61 and a right through hole 63. The left through hole 61 is provided in a left plate-shaped portion 65 protruding upward from the rear left end portion 47 of the visor main body 39. The right through hole 63 is provided in a right plate-shaped portion 67 protruding upward from the rear right end portion 49 of the visor main body.

[0047] The left protrusion 53 of the second locking portion 13 fits into the left through hole 61 and the right protrusion 55 of the second locking portion 13 fits into the right through hole 63, thereby causing the second locked portion 43 to lock onto the second locking portion (see Figures 3, 22(d), etc.).

[0048] When the second locked portion 43 is locked to the second locking portion 13, the left plate-shaped portion 65 enters the inside of the cap body main body 9, the thickness direction of the left plate-shaped portion 65 coincides with the thickness direction of the flesh of the cap body main body 9, and the left plate-shaped portion 65 is in contact with or slightly separated from the inner wall surface of the cap body main body 9. Also, when the second locked portion 43 is locked to the second locking portion 13, the right plate-shaped portion 67 enters the inside of the cap body main body 9, the thickness direction of the right plate-shaped portion 67 coincides with the thickness direction of the flesh of the cap body main body 9, and the right plate-shaped portion 67 is in contact with or slightly separated from the inner wall surface of the cap body main body 9.

[0049] 13 and other drawings, the cap body 9 is provided with an elongated arc-shaped cap body joint portion (cap body contact portion) 69. The cap body joint portion 69 is provided on the front side of the edge portion 17 of the opening 15 of the cap body 9, from the front left end portion 21 to the front right end portion 23.

[0050] As shown in Fig. 6 etc., the visor main body 39 is provided with an elongated arc-shaped visor joint (visor contact portion) 71. The visor joint 71 is provided on the rear side of the visor main body 39, from the rear left end portion 47 to the rear right end portion 49 of the visor main body 39.

[0051] In a state where the visor 7 is attached to the cap body 3, for example, all of the cap body joining portions 69 and for example all of the visor joining portions 71 are configured to come into contact with each other (see FIG. 1, etc.).

[0052] The central recess 59 of the first engaged portion 41 is configured to include a rear central portion 45 of the visor joint portion 71 and a central recess forming projection 73 that projects downward from the visor body portion 39 at the rear central portion 45 (see FIG. 10, etc.). The central recess forming projection 73 extends in an elongated shape along the arc of the rear central portion 45 (see FIG. 9, etc.).

[0053] As shown in Figure 13 etc., the cap body main body 9 is provided with a third engagement portion 79 composed of an elongated, arc-shaped, diagonal left front portion 75 and an elongated, arc-shaped, diagonal right front portion 77 of the edge 17 of the opening 15 of the cap body main body 9.

[0054] The diagonal left front region 75 is provided between the front central region 19 and the front left end region 21, spaced apart from the front central region 19 and adjacent to the front left end region 21. The diagonal right front region 77 is provided between the front central region 19 and the front right end region 23, spaced apart from the front central region 19 and adjacent to the front right end region 23.

[0055] 5, 6, etc., the visor body 39 is provided with a third locked portion 85 composed of a left recess 81 and a right recess 83 into which the third locking portion 79 fits. When the visor 7 is installed on the cap body 3, the third locked portion 85 is adapted to be locked to the third locking portion 79 of the cap body 3 (see Figs. 3, 2(c), etc.).

[0056] 5, 6, etc., the left recess 81 of the third locked portion 85 is configured to include a left recess-forming protrusion 87 protruding rearward from the visor main body 39 at the diagonal left rear portion 76 of the visor joint 71 and the diagonal right rear portion 78 of the visor joint 71. The right recess 83 of the third locked portion 85 is configured to include a right recess-forming protrusion 89 protruding rearward from the visor main body 39 at the diagonal right rear portion 78 of the visor joint 71.

[0057] The left recess-forming projection 87 extends in an elongated shape along an arc of the diagonally left rear portion 76 , and the right recess-forming projection 89 extends in an elongated shape along an arc of the diagonally right rear portion 78 .

[0058] As shown in FIG. 13 and other figures, the cap body 9 is provided with a fourth engagement portion 95 composed of a pair of left protrusions 91 and a pair of right protrusions 93 .

[0059] The pair of left side protrusions 91 are slightly spaced from each other in the front-to-rear direction and protrude from the inner wall surface of the cap body 9 toward the center of the cap body 9. The pair of left side protrusions 91 are provided near the opening 15 of the cap body 9, at the front left end portion 21 of the cap body 9, so that the left protrusion 53 is inside (slightly spaced from the left protrusion 53 and sandwiching the left protrusion 53).

[0060] The pair of right protrusions 93 are also slightly spaced from each other in the front-to-rear direction and protrude from the inner wall surface of the cap body 9 toward the center of the cap body 9. The pair of right protrusions 93 are provided near the opening 15 of the cap body 9, at the front right end portion 23 of the cap body 9, so that the right protrusion 55 is inside (slightly spaced from the right protrusion 55 and sandwiching the right protrusion 55).

[0061] As shown in FIG. 5 and other figures, the visor body 39 is provided with a fourth locked portion 97 composed of a left plate portion 65 and a right plate portion 67. When the visor 7 is installed on the cap body 3, the left plate portion 65 is adapted to fit into a pair of left side protrusion portions 91. When the visor 7 is installed on the cap body 3, the right plate portion 67 is adapted to fit into a pair of right side protrusion portions 93 (see FIG. 3, FIG. 21, FIG. 23, etc.). The fourth locked portion 97 of the visor 7 is adapted to be locked to the fourth locking portion of the cap body 3.

[0062] 2, 22(d), etc., the protective cap 1 is configured so that the wearing body 5 is installed in the second locking portion 13. By installing the wearing body 5 in the second locking portion 13, the second locked portion 43 of the visor 7 is locked to the second locking portion 13 of the cap body 3 and is configured not to come off the second locking portion 13 (cap body 3).

[0063] Here, the front center region 19, the front left region 101, the front right region 103, the diagonal left front region 75, the diagonal right front region 77, the front left end region 21, and the front right end region 23 of the edge 17 of the opening 15 of the cap body 9 will be described. As shown in Fig. 13, in the front region of the edge 17 of the opening 15 of the cap body 9, the front center region 19, the front left region 101, the diagonal left front region 75, and the front left end region 21 are connected in this order to form an arc shape from the front center region 19 to the left side. Also, in the front region of the edge 17 of the opening 15 of the cap body 9, the front center region 19, the front right region 103, the diagonal right front region 77, and the front right end region 23 are connected in this order to form an arc shape from the front center region 19 to the right side.

[0064] The central protrusion 51 of the first engagement portion 11 of the cap body 3 is provided not only in the front central area 19 but also from the front left area 101 to the front right area 103 (see FIG. 13, etc.). As a result, the first engagement portion 11 is formed by a portion of the central protrusion 51 in the center.

[0065] The rear center region 45, the rear left region 105, the rear right region 107, the diagonal left rear region 76, the diagonal right rear region 78, the rear left end region 47, and the rear right end region 49 of the visor main body 39 will be described. As shown in Fig. 6, on the rear edge of the visor main body 39, the rear center region 45, the rear left region 105, the diagonal left rear region 76, and the rear left end region 47 are connected in this order to form an arc shape from the rear center region 45 to the left side. Also, on the rear edge of the visor main body 39, the rear center region 45, the rear right region 107, the diagonal right rear region 78, and the rear right end region 49 are connected in this order to form an arc shape from the rear center region 45 to the right side.

[0066] The wearing body 5 to be placed inside the hat body 3 includes a hammock 109, a headband 111, an ear / chin strap 113, a shock absorbing liner 115, etc. (see FIG. 2). An example of the wearing body 5 in which the second locked part 43 of the visor 7 is locked to the second locking part 13 of the hat body 3 so as not to come off from the second locking part 13 is a hammock 109.

[0067] After the left projection 53 and the right projection 55 of the second engaging portion 13 are inserted through the left through-hole 61 and the right through-hole 63 of the visor 7, respectively, the hammock 109 is attached to the left projection 53 and the right projection 55 (see Fig. 22(d), Fig. 20, etc.). This allows the hammock 109 to function as a retaining material that prevents the second engaged portion 43 from coming off the second engaging portion 13 (left projection 53, right projection 55). The hammock 109 is attached to the left projection 53 and the right projection 55 in the same manner as in conventional protective helmets.

[0068] 22(e) and 22(f), a slit 117 may be provided in the left protrusion 53 (right protrusion 55) to elastically deform the left protrusion 53 (right protrusion 55) so that the value of the outer diameter dimension of the left protrusion 53 (right protrusion 55) can be changed. In addition, the second locked portion 43 of the visor 7 attached to the left protrusion 53 (right protrusion 55) may be prevented from coming off the second locking portion 13 of the cap body 3.

[0069] As described above, the first engagement portion 11 of the cap body 3 is configured to include the central protrusion 51. As shown in Fig. 22(a) and (b), in the locations where the central protrusion 51 is provided (the front left portion 101, the front central portion 19, and the front right portion 103), the lower end of the cap body main body portion 9 is extended slightly downward by the portion 119. That is, the lower ends of the front left portion 101, the front central portion 19, and the front right portion 103 of the cap body main body portion 9 are positioned slightly lower than the lower ends of the front left end portion 21, the oblique left front portion 75, the front right end portion 23, and the oblique right front portion 77 by the portion 119.

[0070] The cross-sectional shape of central protrusion 51 (shape of a cross section taken along a plane perpendicular to the extension direction) is rectangular as shown in Figures 22(a) and 22(b). As described above, central protrusion 51 is provided across front left portion 101, front central portion 19, and front right portion 103. When central protrusion 51 is viewed in the vertical direction, it appears to be arc-shaped as shown in Figure 13.

[0071] As described above, the second locking portion 13 of the cap body 3 is composed of the left protrusion 53 and the right protrusion 55. The left protrusion 53 is disposed at the center of the front left end portion 21 in the circumferential direction of the edge portion 17 of the opening 15 of the cap body main body 9, as shown in FIG. 13 and other figures. The left protrusion 53 is disposed slightly away from the opening 15 (lower end) of the cap body main body 9 in the vertical direction. The right protrusion 55 is disposed at the center of the front right end portion 23 in the circumferential direction of the edge portion 17 of the opening 15 of the cap body main body 9. The right protrusion 55 is disposed slightly away from the opening 15 (lower end) of the cap body main body 9 in the vertical direction, as shown in FIG. 15 and other figures.

[0072] The third engagement portion 79 of the cap body 3 is composed of a diagonal left front portion 75 which is part of the edge 17 of the opening 15 of the cap body main body 9, and a diagonal right front portion 77 which is another part of the edge 17 of the opening 15 of the cap body main body 9.

[0073] As described above, the fourth engagement portion 95 of the cap body 3 is composed of a pair of left protrusions 91 and a pair of right protrusions 93. Each of the pair of left protrusions 91 and the pair of right protrusions 93 extends in the vertical direction slightly above the edge 17 of the opening 15 of the cap body 9 (see FIG. 15, etc.).

[0074] The pair of left protrusions 91 and the pair of right protrusions 93 each have an "L"-shaped cross section (a cross section taken along a plane perpendicular to the up-down direction) as shown in Fig. 23. As shown in Fig. 13 and other figures, the pair of left protrusions 91 are disposed at the front left end portion 21 in the circumferential direction of the edge portion 17 of the opening 15 of the cap body 9. The pair of right protrusions 93 are disposed at the front right end portion 23 in the circumferential direction of the edge portion 17 of the opening 15 of the cap body 9.

[0075] The cap body joint 69 of the cap body 3 is formed in the circumferential direction of the edge 17 of the cap body main body 9 over the front left end portion 21, the diagonal left front portion 75, the front left portion 101, the front central portion 19, the front right portion 103, the diagonal right front portion 77, and the front right end portion 23 (see Figure 13, etc.).

[0076] In the area where the central convex portion 51 is provided, the upper surface of the central convex portion 51 and the front surface of the lower end of the cap body main portion 9 form the cap body joint portion 69 (see Figs. 22(a) and (b)). In the area where the central convex portion 51 is not provided, the front surface of the lower end of the cap body main portion 9 forms the cap body joint portion 69 (see Figs. 22(c) and (d)).

[0077] The visor body 39 of the visor 7 is formed in a plate shape as described above. The rear end of the visor body 39 is in a concave arc shape, and the front end of the visor body 39 is in a convex arc shape. When viewed in the up-down direction, the visor body 39 is in a crescent shape, as shown in FIG. 6 and other figures. The rear left end portion 47, the diagonally left rear portion 76, the rear left side portion 105, the rear central portion 45, the rear right side portion 107, the diagonally right rear portion 78, and the rear right end portion 49 are disposed on the rear side of the visor body 39.

[0078] As described above, the first locked portion 41 of the visor 7 is configured to include the central recess forming protrusion 73 (see FIG. 22(a) and the like). The central recess forming protrusion 73 is provided at the rear central portion 45. The central recess forming protrusion 73 and the rear central portion 45 of the visor body 39 form a central recess 59. The central recess 59 is adapted to be received by the central protrusion 51. As described above, the second locked portion 43 of the visor 7 is configured to include the left through hole 61 of the left plate-shaped portion 65 and the right through hole 63 of the right plate-shaped portion 67. The left protrusion 53 passes through the left through hole 61, and the right protrusion 55 passes through the right through hole 63 (see FIG. 22(d)).

[0079] As described above, the third engaged portion 85 of the visor 7 is configured to include the left recess-forming protrusion 87 and the right recess-forming protrusion 89. As shown in FIG. 6 and other figures, the left recess-forming protrusion 87 is provided at the diagonal left rear portion 76 and the rear left end portion 47. The right recess-forming protrusion 89 is provided at the diagonal right rear portion 78 and the rear right end portion 49. The left recess-forming protrusion 87, the diagonal left rear portion 76 and the rear left end portion 47 of the visor main body portion 39 form a left recess 81. The right recess-forming protrusion 89, the diagonal right rear portion 78 and the rear right end portion 49 of the visor main body portion 39 form a right recess 83. As shown in FIG. 22(c) and other figures, the diagonal left front portion 75 and the front left end portion 21 of the cap body portion 9 are adapted to fit into the left recess 81. Further, the right recess 83 is adapted to receive the obliquely right front portion 77 and the right front end portion 23 of the cap body 9 .

[0080] As described above, the fourth locked portion 97 of the visor 7 is configured to include the left plate portion 65 and the right plate portion 67. As shown in FIG. 23(b), the left plate portion 65 fits into the pair of left side protrusion portions 91, and the right plate portion 67 fits into the pair of right side protrusion portions 93, so that the fourth locked portion 97 is locked to the fourth locking portion 95. Note that, as shown in FIG. 23(a), the width dimension value (the horizontal dimension value in FIG. 23(a)) of the left plate portion 65 and the right plate portion 67 may be small, so that the left plate portion 65 and the right plate portion 67 do not fit into the pair of left side protrusion portions 91 and the pair of right side protrusion portions 93.

[0081] The visor joint portion 71 of the visor 7 is formed across the rear left end portion 47, the diagonally left rear portion 76, the rear left portion 105, the rear central portion 45, the rear right portion 107, the diagonally right rear portion 78, and the rear right end portion 49. The visor joint portion 71 is configured to include a portion 121 as shown in Figures 22(a) to (d).

[0082] The cross-sectional shape of the portion 121 (the shape of the cross section taken along a plane perpendicular to the extension direction) is formed into a rectangular shape. The portion 121 protrudes slightly upward from the rear end of the visor main body 39. The rear end surface of the portion 121 constitutes the visor joint portion 71 (see FIGS. 22(a)(b)(c)(d)).

[0083] In the protective cap 1, the central convex portion 51 constituting the first engaging portion 11 fits into the central recess 59 of the first engaged portion 41 of the visor 7, and the central recess forming protrusion 73 constituting the first engaged portion 41 protrudes slightly from the visor main body portion 39 on the underside of the visor main body portion 39.

[0084] In the protective cap 1, the left protrusion 53 and the right protrusion 55 constituting the second engagement portion 13, and the left plate-shaped portion 65 (through hole 61) and the right plate-shaped portion 67 (through hole 63) constituting the second engaged portion 43 are located on the inside of the cap body main body portion 9.

[0085] In the protective cap 1, a pair of left side protrusions 91 and a pair of right side protrusions 93 constituting the fourth engagement portion 95, and a left plate portion 65 and a right plate portion 67 constituting the fourth engagement portion 97 are located inside the cap body main body portion 9.

[0086] In addition, in the protective cap 1, the diagonal left front portion 75 and the diagonal right front portion 77 constituting the third engaging portion 79 are formed by a part of the edge portion 17 of the opening 15 of the cap body 9. In addition, the left recess-forming protrusion 87 and the right recess-forming protrusion 89 constituting the third engaged portion 85 are located on the inside of the cap body 9.

[0087] As a result, when the protective cap 1 is viewed from above, the front, right side, left side, or rear side, the first engaging portion 11 and the like are seen as not forming a protrusion on the outer surface of the protective cap 1. The first engaging portion 11 and the like refer to the first engaging portion 11, the first engaged portion 41, the second engaging portion 13, the second engaged portion 43, the third engaging portion 79, the third engaged portion 85, the fourth engaging portion 95, and the fourth engaged portion 97.

[0088] When the protective cap 1 is viewed from above and in front, the elongated arc-shaped cap body joint 69 of the cap body 9 and the elongated arc-shaped visor joint 71 of the visor body 39 are visible. This gives the protective cap 1 a neat appearance.

[0089] Furthermore, when the protective cap 1 is viewed from above and in front, the boundary between the cap body 3 and the visor 7 appears as a single arc-shaped line 125 (see Figs. 1, 22, etc.). This line 125 extends in an arc shape along the dashed line 127 shown in Fig. 6. This also gives the protective cap 1 a neat appearance.

[0090] Here, a description will be given of the operation of installing the visor 7 on the cap body 3. In the initial state, the cap body 3 and the visor 7 are separated from each other. This makes the visor 7 a retrofit type visor.

[0091] In the above initial state, the rear side of the visor 7 is positioned downward and the front side of the visor 7 is positioned upward, so that the visor 7 is tilted at an angle, and the first locked portion 41 is engaged with the first locking portion 11 (see FIG. 16).

[0092] 17 and 18, the visor 7 is rotated with respect to the cap body 3 around the engagement portion between the first locking portion 11 and the first locked portion 41 as the center of rotation so that the rear side of the visor 7 faces upward. Note that the first locking portion 11 and the first locked portion 41 are formed in an arc shape, but the above rotation is possible because this arc is close to a straight line and the visor 7 has some elasticity.

[0093] By the above rotation, the first locked portion 41 is locked to the first locking portion 11, and the second locked portion 43 is locked to the second locking portion 13. Then, the visor 7 is integrally installed on the cap body 3 (see FIG. 19).

[0094] Next, a wearing body 5 (e.g., a hammock 109) that functions as a material to prevent the first engaging portion 41 from slipping off is attached to the left protrusion 53 and the right protrusion 55, thereby forming the protective cap 1 (see Figure 20, etc.).

[0095] In the protective cap 1, a first engaging portion 11 and a second engaging portion 13 are provided on the cap body 3, and a first engaged portion 41 and a second engaged portion 43 are provided on the visor 7. Then, with the visor 7 tilted at an angle and the first engaged portion 41 engaged with the first engaging portion 11, the visor 7 is rotated relative to the cap body 3 around the engagement portion between the first engaging portion 11 and the first engaged portion 41 as the center of rotation. This rotation causes the visor 7 to assume a horizontal position, the first engaged portion 41 is engaged with the first engaging portion 11, and the second engaged portion 43 is engaged with the second engaging portion 13, so that the visor 7 is integrally installed on the cap body 3.

[0096] Because the protective cap 1 is configured in this manner, the visor 7 will not come off the cap body 3 simply by pulling the visor 7 strongly forward, and the visor 7 will not come off unexpectedly from the cap body 3. In addition, by rotating the visor 7 relative to the cap body 3 around the engagement portion between the first engaging portion 11 and the first engaged portion 41 as the rotation center, the visor 7 can be easily installed on the cap body 3, improving the ease of assembly of the cap body 3 and the visor 7.

[0097] In addition, in the protective cap 1, the first engagement portion 11 of the cap body 3 is composed of a central protrusion 51 provided in the front central region 19 of the cap body 3. The second engagement portion 13 of the cap body 3 is composed of a left protrusion 53 protruding from the front left end portion 21 of the cap body 3 toward the center of the cap body main body 9 and a right protrusion 55 protruding from the front right end portion 23 toward the center of the cap body main body 9.

[0098] In addition, in the protective cap 1, the first locked portion 41 of the visor 7 is configured with a central recess 59 provided in the rear central portion 45 of the visor 7. The second locked portion 43 of the visor 7 is configured with a left through hole 61 provided in a left plate-shaped portion 65 protruding from the rear left end portion 47 of the visor 7, and a right through hole 63 provided in a right plate-shaped portion 67 protruding from the rear right end portion 49.

[0099] The central convex portion 51 of the first engaging portion 11 fits into the central concave portion 59 of the first engaged portion 41, thereby engaging the first engaged portion 41 with the first engaging portion 11. The protrusions 53, 55 of the second engaging portion 13 fit into the through holes 61, 63 of the second engaged portion 43, respectively, thereby engaging the second engaged portion 43 with the second engaging portion 13. This makes it even more difficult for the visor 7 to come off the cap body 3, and allows the visor 7 to be easily installed on the cap body 3 by rotating the visor 7 as described above.

[0100] In addition, in the protective cap 1, the cap body main body 9 is provided with a cap body joint 69, which is provided from the front left end portion 21 to the front right end portion 23 on the front side of the edge portion 17 of the opening 15 of the cap body main body 9. In addition, in the protective cap 1, the visor main body 39 is provided with a visor joint 71, which is provided from the rear left end portion 47 to the rear right end portion 49 of the visor main body 39 on the rear side of the visor main body 39. In addition, in the protective cap 1, the cap body joint 69 and the visor joint 71 are configured to contact each other when the visor 7 is installed on the cap body 3. This gives the protective cap 1 a neat appearance.

[0101] Furthermore, in the protective cap 1, the central recess 59 of the first locked portion 41 is configured with the rear central portion 45 of the visor joint portion 71 and a central recess forming protrusion 73 that protrudes downward from the visor body portion 39 at this rear central portion 45. The central recess forming protrusion 73 extends in an elongated shape along the arc of the rear central portion 45. As a result, the central recess 59 of the first locked portion 41 is configured as a part of the visor joint portion 71, simplifying the configuration of the visor 7.

[0102] In addition, in the protective cap 1, a third engagement portion 79 is provided on the cap body portion 9, which is composed of an elongated arc-shaped diagonal left front portion 75 and an elongated arc-shaped diagonal right front portion 77. The diagonal left front portion 75 is provided away from the front central portion 19 and between the front central portion 19 and the front left end portion 21. The diagonal right front portion 77 is provided away from the front central portion 19 and between the front central portion 19 and the front right end portion 23.

[0103] Also, in the protective cap 1, the left recess 81 of the third locked portion 85 is configured with the diagonal left rear portion 76 of the visor joint 71 and a left recess-forming protrusion 87 protruding rearward from the visor main body 39 at the diagonal left rear portion 76. Also, the right recess 83 of the third locked portion 85 is configured with the diagonal right rear portion 78 of the visor joint 71 and a right recess-forming protrusion 89 protruding rearward from the visor main body 39 at the diagonal right rear portion 78.

[0104] As a result, the visor 7 is installed on the cap body 3 further using the third engaging portion 79 and the third engaged portion 85, and the visor 7 is fixed to the cap body 3 even more firmly.

[0105] Furthermore, in the protective cap 1, a fourth engaging portion 95 is provided at the front left end portion 21 and the front right end portion 23 of the cap body main body 9, and a fourth engaged portion 97 composed of the left plate portion 65 and the right plate portion 67 of the visor 7 is provided at the visor body 39. Then, when the visor 7 is installed on the cap body 3, the fourth engaged portion 97 is configured to be engaged with the fourth engaging portion 95. The visor is installed on the cap body further using the fourth engaging portion 95 and the fourth engaged portion 97, and the visor 7 is fixed to the cap body 3 more firmly.

[0106] Moreover, the protective cap 1 is configured so that the wearing body 5 is installed on the second engaging portion 13. Moreover, the protective cap 1 is configured so that the second engaged portion 43 is engaged with the second engaging portion 13 and does not come off the second engaging portion 13 (cap body 3) by installing the wearing body 5 on the second engaging portion 13. This allows the visor 7 to be installed integrally with the cap body 3 while simplifying the configuration.

[0107] Incidentally, transparent visors are widely used to ensure upward visibility. If the visor of the protective cap described in Patent Document 1 is made transparent, the inner cap body can be seen through, which makes it look bad. In contrast, in the protective cap 1 according to the first embodiment of the present application, as can be seen from FIG. 22 and other figures, the area where the visor 7 and the cap body 3 overlap each other is narrow, so even if the visor 7 is made transparent and the inner cap body 3 can be seen through, the appearance is not deteriorated.

[0108] In addition, the protective cap described in Patent Document 1 has a locally bulging design due to the presence of the locking means on both the left and right sides of the cap body, which also makes it look unattractive. In contrast, in the protective cap 1 according to the first embodiment of the present application, the second locking portion 13, the second locked portion 43, the fourth locking portion 95, and the fourth locked portion 97 on both sides of the cap body 3 are housed within the cap body 3. This prevents the protective cap 1 from bulging locally, and the appearance is not impaired.

[0109] In addition, in the protective cap described in Patent Document 1, the visor and the cap body have many contact points on their surfaces, so the visor and the cap body are easily scratched during assembly. In contrast, in the protective cap 1 according to the first embodiment of the present application, the visor 7 and the cap body 3 have few contact points on their surfaces, so scratches caused by rubbing between the visor 7 and the cap body 3 can be prevented as much as possible.

[0110] Also, in the protective cap described in Patent Document 2, since there are many points where the visor and the surface of the cap body come into contact, the visor and the cap body are easily rubbed and scratched during assembly, and if the visor is made transparent, the inner cap body is visible through it, which makes it look bad. In contrast, in the protective cap 1 according to the first embodiment of the present application, as described above, even if the visor 7 is made transparent and the inner cap body 3 is visible through it, the appearance is not deteriorated, and scratches caused by rubbing between the visor 7 and the cap body 3 can be prevented as much as possible.

[0111] In addition, in the protective cap 1, there is little overlap between the visor 7 and the cap body 3 when viewed from the outside, which allows for greater freedom in design. Also, by making the visor an add-on type, the visor 7 and the cap body 3 can be made of different materials. In the protective cap 1, the visor 7 is made of PC and the cap body 3 is made of ABS resin, ensuring strength while reducing weight.

[0112] In the above description, the cap body 3 is composed of two members, the lower cap body constituent 25 and the upper cap body constituent 27, but the cap body 3 may be composed of one bowl-shaped member without dividing the cap body 3 into the lower cap body constituent 25 and the upper cap body constituent 27. Also, in the protective cap 1, the second locked portion 43 may be composed of a protrusion, and the second locking portion 13 may be composed of a recess or a through hole.

[0113] 24, a pair of first locked portions 41 may be provided at the rear central portion 45, spaced apart in the left-right direction. That is, the central recess-forming protrusion 73 may be provided at a left side of the rear central portion 45 and the central recess-forming protrusion 73 may be provided at a right side of the rear central portion 45, without providing the central recess-forming protrusion 73 at the center of the rear central portion 45. As a result, the central recesses 59 are also provided in a left-right pair spaced apart from each other.

[0114] Second Embodiment In the protective cap 1 according to the first embodiment of the present invention, the cap body 3 is obtained by integrally molding PC or ABS resin. The protective cap 1a according to the second embodiment of the present invention differs from the protective cap 1 according to the first embodiment of the present invention in that the cap body 3 is made of FRP (fiber reinforced plastic).

[0115] A typical FRP cap body is different from a cap body molded from PC or ABS resin. A typical FRP cap body has a mold that can only be removed vertically (undercuts are not allowed), so the second locking portion 13 and the fourth locking portion 95 cannot be integrally molded together with the cap body main body 9. For this reason, after the FRP cap body main body 9 is molded, the second locking portion 13 made of a rivet 123 (see Figs. 25 to 27) is attached to the cap body main body 9 later. Although the fourth locking portion 95 is not provided, the fourth locking portion 95 may be provided separately.

[0116] The visor 7 of the protective cap 1a according to the second embodiment of the present invention is different from the visor 7 of the protective cap 1 according to the first embodiment of the present invention in that the width dimension W (see FIG. 28) of the left plate-shaped portion 65 (right plate-shaped portion 67) is larger than that of the visor 7 of the protective cap 1 according to the first embodiment of the present invention. By increasing the value of the width dimension W of the left plate-shaped portion 65 (right plate-shaped portion 67), the second locked portion 43 is also firmly fixed to the second locking portion 13 constituted by, for example, a metal rivet 123.

[0117] In the protective cap 1a, even if the cap body 3 is made of FRP to increase its strength, the visor 7 is separate from the cap body 3, so that the visor 7 can be made transparent.

[0118] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment. [Explanation of symbols]

[0119] 1 Hard hat 3. Hat body 5 Wearing body 7 Visor 9. Hat body part 11 First locking portion 13 Second locking portion 15 Opening 17 Edge 19 Front central part 21 Front left end part 23 Front right end part 39 Visor body 41 First engaged portion 43 Second engaged portion 45 Posterior central part 47 Posterior left end part 49 Posterior right end part 51 Central protrusion 53 Left protrusion 55 Right protrusion 59 Central recess 61 Left through hole 63 Right through hole 65 Left plate 67 Right plate 69 Cap body joint 71 Visor joint 73 Central recess forming protrusion 75 Diagonal left front area 76 Diagonal left rear area 77 Right front area 78 Right rear diagonal area 79 Third locking part 81 Left recess 83 Right recess 85 Third engaged portion 87 Left recess forming protrusion 89 Right recess forming projection 91 Pair of left protrusions 93 Pair of right side protrusions 95 Fourth locking part 97 Fourth engaged part

Claims

1. a cap body including a cup-shaped cap body portion, a first fastening portion provided at a front center portion of an edge of an opening of the cap body body portion, and a second fastening portion provided at a front left end portion and a front right end portion of the cap body body portion near the opening of the cap body body portion; a visor including a visor body formed in a plate shape, a first engaged portion provided in a rear center portion of the visor body and engaged with the first engaging portion by fitting into the first engaging portion, and second engaged portions provided in rear left end portion and rear right end portion of the visor body and engaged with the second engaging portion by fitting into the second engaging portion; and a protective cap configured such that, from a state in which the rear side of the visor is positioned downward and the front side of the visor is positioned upward with the first engaged portion engaged with the first engaging portion, the visor is rotated relative to the cap body around an engagement portion between the first engaging portion and the first engaged portion as a rotation center, so that the first engaged portion is engaged with the first engaging portion and the second engaged portion is engaged with the second engaging portion, and the visor is installed on the cap body.

2. a cap comprising a cap body portion formed in a bowl shape, a first locking portion constituted by a central protrusion provided at a front central portion of an edge of an opening of the cap body portion, and a second locking portion constituted by a left protrusion protruding from a front left end portion of an inner wall surface of the cap body portion near the opening of the cap body portion and a right protrusion protruding from a front right end portion of an inner wall surface of the cap body portion near the opening of the cap body portion; a visor comprising: a visor main body portion formed in a plate shape; a first engaged portion constituted by a central recess provided in a rear central portion of the visor main body portion, the first engaged portion being engaged with the first engaged portion as a central protrusion of the first engaged portion fits into the central recess; and a second engaged portion constituted by a left through hole provided in a left plate-like portion protruding upward from a rear left end portion of the visor main body portion and a right through hole provided in a right plate-like portion protruding upward from a rear right end portion of the visor main body portion, the second engaged portion being engaged with the second engaged portion as a left protrusion of the second engaged portion fits into the left through hole and a right protrusion of the second engaged portion fits into the right through hole; A protective helmet having a

3. The cap body main body is provided with a cap body joining portion, and the cap body joining portion is provided on the front side of the edge of the opening of the cap body main body, from the front left end portion to the front right end portion, The visor body is provided with a visor joint portion, and the visor joint portion is provided on the rear side of the visor body from the rear left end portion to the rear right end portion, When the visor is installed on the cap body, the cap body joint portion and the visor joint portion are configured to contact each other, 3. The protective cap according to claim 2, wherein the central recess of the first engaged portion is configured to include a rear central portion of the visor joint portion and a central recess-forming protrusion protruding downward from the visor body portion at this rear central portion, and the central recess-forming protrusion extends in an elongated shape along an arc of the rear central portion.

4. the cap body portion is provided with a third engaging portion which is configured by an elongated arc-shaped diagonal left front portion and an elongated arc-shaped diagonal right front portion of an edge of an opening of the cap body portion, the oblique left front portion is provided between the front central portion and the front left end portion, the oblique right front portion is provided between the front center portion and the front right end portion, the visor body portion is provided with a third engaged portion that is configured with a left recess and a right recess into which the third engaging portion fits when the visor is installed on the helmet body, and that is engaged with the third engaging portion; 4. The protective cap according to claim 3, wherein the left recess of the third engaged portion is configured to include a diagonally left rear portion of the visor joint and a left recess-forming protrusion protruding rearward from the visor main body at the diagonally left rear portion, and the right recess of the third engaged portion is configured to include a diagonally right rear portion of the visor joint and a right recess-forming protrusion protruding rearward from the visor main body at the diagonally right rear portion, the left recess-forming protrusion extending in an elongated manner along the arc of the diagonal left rear portion, and the right recess-forming protrusion extending in an elongated manner along the arc of the diagonal right rear portion.

5. The cap body portion is provided with a fourth engaging portion that is configured with a pair of left protrusions and a pair of right protrusions, the pair of left protruding portions protrude from an inner wall surface of the cap body portion near an opening of the cap body portion and at a front left end portion of the cap body portion such that the left protrusion enters the inside of the cap body portion, the pair of right protruding portions protrude from an inner wall surface of the cap body portion near an opening of the cap body portion and at a front right end portion of the cap body portion such that the right protrusion enters the inside of the cap body portion, The visor body is provided with a fourth engaged portion constituted by the left plate portion and the right plate portion, 3. The protective cap according to claim 2, wherein, when the visor is installed on the cap body, the left plate portion fits into the pair of left side protrusion portions and the right plate portion fits into the pair of right side protrusion portions, so that the fourth engaged portion is engaged with the fourth engaging portion.

6. 6. The protective cap according to claim 1, wherein the second engaging portion is configured to have a wearing body installed thereon, and the second engaging portion is configured to be engaged with the second engaging portion by installing the wearing body on the second engaging portion, so that the second engaging portion is not detached from the second engaging portion.

Images