JP2014221952A - Protective cap with sliding openable venting mechanism part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protective cap with a sliding openable venting mechanism part.SOLUTION: A sliding openable venting mechanism part 11 is arranged on top part region of a protective cap main body 2. The sliding openable venting mechanism part 11 may shift between a closed state in which outside air is interrupted to enter inside of the protective cap main body 2 and an opened state in which the outside air is allowed to enter inside of the protective cap main body 2 by sliding operation of a sliding body 31 as a cover to front and back sides. The sliding openable venting mechanism part 11 comprises: a penetrating long hole 12 arranged at the top part region of the protective cap main body 2 in a front and back direction; a rail body 21 comprising a pair of rails 22 arranged on both longer side parts in the front and back direction and a venting long hole 24 in the front and back direction; the sliding body 31 as a cover comprising an upper surface part 32 shorter than the rail body 21 and a pair of sliding engagement pieces 35 which is slidably engaged on the pair of rails 22 on the rail body 21 which are extending downward from both longer side parts of the upper surface part 32.

Description

  The present invention relates to a protective cap with a slide opening / closing type ventilation mechanism that can reliably prevent rainwater from entering the head during rainy weather and can obtain a sufficient amount of ventilation to the head when it is not rainy. Is.

  Conventionally, for example, in a protective cap such as a helmet worn by the driver on the head when traveling, such as a motorcycle or a scooter, there is no rainwater inundation to the head especially in rainy weather, and sufficient ventilation is provided except in rainy weather. Naturally, it is required that comfortable breathability can be obtained depending on the amount.

  However, in the case of a conventional general protective cap, rainwater infiltrates into the head when it rains and the driver feels uncomfortable, or even if it has a function to prevent inundation of rainwater into the head, the weather changes This includes problems such as complicated time switching operations.

  Patent Document 1 includes a front opening / closing mechanism for opening and closing ventilation through front and rear through holes before and after the top of the shell, and the top opening / closing mechanism includes front and rear through holes. The mounting base has an air guide wall on both sides, a slide plate is provided on the front side of the mounting base, and a swing plate on the rear side of the rear through hole on the rear side of the mounting base. There has been proposed a helmet constructed by providing a.

  However, in the case of this helmet, a configuration in which front and rear through holes for ventilation are formed before and after the top of the shell is adopted, and it is difficult to obtain air permeability with a sufficient air flow amount except in rainy weather. Estimated.

JP 2000-129529 A

  The problem to be solved by the present invention is that it is possible to reliably prevent rainwater from entering the head during rainy weather, and to obtain a sufficient amount of ventilation to the head when it is not raining, and to change the weather. There is no protective cap that excels in switching operability.

  The protective cap according to the present invention is provided in a protective cap main body to be attached to the head and a top region of the protective cap main body, and blocks the outside air from flowing into the protective cap main body by sliding forward and backward. A protective cap with a slide opening / closing type venting mechanism portion comprising a slide opening / closing type venting mechanism portion switchable between a closed state and an open state for venting outside air into the protective cap body, wherein the slide opening / closing type venting mechanism The portion is fixed to the top region of the protective cap body in the front-rear direction with a substantially rectangular through-hole, and is substantially upwardly U-shaped so as to close the whole through-hole, and on both long sides A rail body comprising a pair of rails provided in the direction, a longitudinal oblong hole, a cap body wall provided on the front end side, and a cap body wall provided shifted from the rear end side to the front side; A substantially rectangular top surface with dimensions shorter than the rail body; A pair of slide engagement pieces that engage with a pair of rails of the rail body respectively suspended from both long side portions of the upper surface portion of the upper surface portion of the upper surface portion, and in a closed state by a sliding operation to the front side, the front end of the upper surface portion The inner surface is brought into close contact with the cap body wall on the front end side of the rail body, and the rear end inner surface of the upper surface portion is brought into close contact with the cap body wall shifted from the rear end side of the rail body to the front side to vent external air into the protective cap body. In the open state by the sliding operation to the rear side, the inner surface of the upper end of the upper surface portion is brought into close contact with the cap body wall shifted from the rear end of the rail body to the front side, and the inner surface of the front end of the upper surface portion is railed. It has a cover / slide body that moves rearward from the cap body wall on the front end side of the body and vents the outside air into the protective cap body through the ventilation hole of the rail body, and has the main feature.

  According to the first to third aspects of the present invention, it is possible to completely prevent rainwater from entering the protective cap body when it rains on the top surface area of the protective cap body, and to the head when it is not raining. It is possible to realize and provide a protective cap with a slide opening / closing type ventilation mechanism portion that can obtain a sufficient ventilation amount and is excellent in switching operability of the cover and the slide body when the weather changes.

  According to the invention described in claim 4, by providing the lock mechanism portion at the time of rose and the lock mechanism portion at the time of opening of the cover and slide body, it is possible to reliably prevent rainwater from entering the protective cap body in the rain. However, the driver can feel uncomfortable that the air is trapped in the head and the air can be surely ensured in the protective cap body during sunny weather. It is possible to realize and provide a protective cap with a slide opening / closing type ventilation mechanism that also has the effect of being absent.

  According to the fifth aspect of the invention, by providing the two slide opening / closing type ventilation mechanism parts, in addition to the above-described effects, one of the two slide opening / closing type ventilation mechanism parts is in a closed state. In addition, a switching mode in which the other is in an open state can be adopted, and a protective cap with a slide opening / closing type ventilation mechanism that can easily cope with a situation such as an outside air temperature can be realized and provided.

FIG. 1 is a front view of a protective cap with a slide opening / closing type ventilation mechanism according to an embodiment of the present invention. FIG. 2 is a rear view of the protective cap with a slide opening / closing type ventilation mechanism according to the present embodiment. FIG. 3 is a plan view of a protective cap with a slide opening / closing type ventilation mechanism according to the present embodiment. FIG. 4 is a bottom view of the protective cap with a slide opening / closing type ventilation mechanism according to the present embodiment. FIG. 5 is a right side view of the protective cap with a slide opening / closing type ventilation mechanism according to the present embodiment. FIG. 6 is a schematic plan view of the rail body in the protective cap with a slide opening / closing type ventilation mechanism according to the present embodiment. FIG. 7 is a schematic bottom view of the cover and slide body in the protective cap with a slide opening / closing type ventilation mechanism according to the present embodiment. FIG. 8 is a schematic plan view showing a closed state of the slide opening / closing type ventilation mechanism in the protective cap with the sliding opening / closing type ventilation mechanism according to the present embodiment. FIG. 9 is a schematic plan view showing a state in which the slide opening / closing type ventilation mechanism part is open in the protective cap with the sliding opening / closing type ventilation mechanism part according to the present embodiment.

  The present invention can reliably prevent rainwater from entering the head during rainy weather, and can obtain a sufficient amount of ventilation to the head when it is not rainy. The purpose of providing an excellent protective cap with a sliding opening / closing type ventilation mechanism is provided in the protective cap main body to be attached to the head and the top region of the protective cap main body, and the protective cap main body by sliding forward and backward A protective cap with a slide opening / closing type ventilation mechanism comprising a slide opening / closing type ventilation mechanism that can be switched between a closed state that blocks ventilation of outside air into the inside and an open state that vents outside air into the protective cap body The slide opening / closing type venting mechanism portion has a substantially rectangular through-hole formed in the front-rear direction while corresponding to the shape of the protective cap main body in the top region of the protective cap main body, Through hole shape A pair of rails provided in the longitudinal direction on both long sides, a ventilation / slide receiving slot in the front / rear direction, and a ventilation slot in the front / rear direction A rail body provided with a cap body wall provided on the front end side and a cap body wall provided shifted from the rear end side to the front side, and an abbreviation having a dimension shorter than that of the rail body and corresponding to the shape of the rail body A rectangular upper surface portion, a pair of slide engaging pieces that engage with a pair of rails of the rail body respectively suspended from both long sides of the upper surface portion, and the rail body protruding from the back surface of the upper surface portion And a retaining projection fitted to occupy a part of the ventilation / slide receiving elongated hole, and the front side is performed while the retaining projection is fitted in the ventilation / slide receiving elongated hole of the rail body. In the closed state by sliding to The inner surface of the front end of the upper surface portion is brought into close contact with the cap body wall on the front end side of the rail body, and the inner surface of the rear end of the upper surface portion is brought into close contact with the cap body wall shifted from the rear end side of the rail body to the front side. In an open state by a sliding operation to the rear side while blocking the ventilation of outside air to the rail body and fitting the projection for retaining in the ventilation and slide receiving hole of the rail body, the rear end side of the upper surface portion The inner surface of the upper surface of the rail body is moved closer to the rear side than the cap body wall on the front end side of the rail body while the inner surface is closely contacted with the cap body wall shifted from the rear end of the rail body to the front side. This is realized by a configuration having a cover / slide body that ventilates the outside air into the main body of the protective cap through the cum slide receiving hole.

  Hereinafter, a protective cap with a slide opening / closing type ventilation mechanism according to an embodiment of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 to 5, the protective cap 1 with a slide opening / closing type ventilation mechanism according to the present embodiment is made of synthetic resin such as polypropylene or ABS resin, and is configured by disposing an impact absorbing material on the inner surface. A protective cap body 2 that a driver wears on the head during traveling of a motorcycle, etc., and a top region of the protective cap body 2 that is positioned on both sides of the top and spaced apart in the front-rear direction, and on the front side And two slide opening / closing type ventilating mechanism parts 11 and 11 arranged in parallel in a manner in which the distance between them is wide and the distance on the rear side is narrowed.

  In the present embodiment, the positional relationship before and after the protective cap body 2 and the slide opening / closing type ventilation mechanism 11 is defined as shown in FIG. 3, FIG. 6, and FIG.

  The slide opening / closing type venting mechanism parts 11 and 11 are in a closed state in which the ventilation of the outside air into the protective cap body 2 is blocked by a forward / backward sliding operation and an open state in which the outside air is vented into the protective cap body 2. Each state can be switched.

  Since the two slide opening / closing type ventilation mechanism parts 11 and 11 have the same configuration, one sliding opening / closing type ventilation mechanism part 11 will be described in detail below with reference to FIGS.

  The slide opening / closing type venting mechanism portion 11 is formed on the top region of the protective cap main body 2 on both sides of the topmost portion and formed by bending in an arc shape in the front-rear direction corresponding to the shape of the protective cap main body 2. A through-hole 12 having a front end side and a rear-end side projecting so that the center part protrudes most is provided, and a rail body 21 and a cover / slide body 31 incorporated in the through-long hole 12 are provided.

  As shown in FIGS. 1, 4, 6, and the like, the rail body 21 has a protruding shape corresponding to the protruding shape of the through long hole 12 on the front end side and the rear end side, and the through long hole 12 is bent in an arc shape in the front-rear direction, is substantially rectangular in plan view, and is fixed so as to close the entire through-hole 12 with a generally upward U-shape.

The rail body 21 is fixed to the through long hole 12 by using four ribs provided in the through long hole 12 (not shown).
As shown in detail in FIG. 6, the rail body 21 includes a pair of rails 22 provided on the long side portions on both sides in the front-rear direction, and a center between the pair of rails 22 in the front-rear direction and with a space therebetween. Two vent / slide receiving holes 23 provided, two on one side of the both sides of the vent / slide receiving holes 23 in the front-rear direction and spaced apart, a total of four ventilation slots 24, A pair of cap body walls 25 provided on the front end side in a split arrangement with the central portion as a boundary, and a pair of cap body walls 26 shifted to the front side from the rear end side and provided in a split arrangement on the central portion as a boundary; The rear end side provided between the pair of cap body walls 26 separated from the rear end side and the paired cap body walls 26 shifted from the rear end side to the front side. Provided on the outer wall portion in the width direction of the pair of cap body walls 25 on the front end side of the rail body 21. A concave portion 29 constituting a lock mechanism portion at the time of rose, and a concave portion 30 constituting a lock mechanism portion at the time of opening provided in the width direction outer wall portion of the pair of cap body walls 26 on the rear end side in the rail body 21. ing.

As shown in FIG. 7, the cover and slide body 31 has a protruding shape corresponding to the protruding shape of the rail body 21, and is bent and formed in an arc shape in the front-rear direction corresponding to the rail body 21. In addition, it is formed in a substantially rectangular shape in plan view and shorter than the rail body 21.
The cover-and-slide body 31 is detachably fitted into the front end side and rear end side receiving recesses 27 and 28 at the front end side and rear end side projecting central parts, respectively. A pair of rail bodies 21 each having a substantially rectangular shape in plan view with protrusions 33 and 34 and having a plurality of trapezoidal portions on the upper surface and the rail bodies 21 hanging from both long sides of the upper surface portion 32. A pair of slide engagement pieces 35 that engage with the rail 22 and a rear surface of the upper surface portion 32 and project from the center portion in the front-rear direction at intervals, and the two ventilation / slide receiving holes 23 of the rail body 21. A pair of retaining protrusions 36 for preventing the cover / slide body 31 to be fitted to each other so as to occupy a part of the cover / slide body 31, and the vicinity of the front end of the pair of slide engagement pieces 35 in the cover / slide body 31. Before each inside A concave portion 29 of the rail body 21 provided on the inner side of the pair of slide engaging pieces 35 in the cover / slide body 31 and a convex portion 37 constituting a closed locking mechanism portion corresponding to the concave portion 29 of the rail body 21. And a convex portion 38 constituting a lock mechanism portion at the time of opening in a corresponding arrangement.

  Next, the operation of the protective cap 1 with the slide opening / closing type ventilation mechanism according to the present embodiment will be described with reference to FIGS. 8 and 9 mainly in the slide switching state of the slide opening / closing type ventilation mechanism 11.

  FIG. 8 shows a state in which the cover / slide body 31 is slid to the front end side when the rain is applied to the top surface area of the protective cap body 2, and the cover / slide body 31 is closed with respect to the rail body 21. This shows the case.

  FIG. 9 shows a case where the cover / slide body 31 is slid to the rear end side and the cover / slide body 31 is in an open state with respect to the rail body 21 when the weather is sunny or cloudy. is there.

  In the closed state by, for example, a one-touch slide operation to the front side of the cover / slide body 31 while the protrusions 36 for retaining the cover / slide body 31 are fitted in the ventilation / slide receiving slot 23 of the rail body 21. The inner surface of the front end of the upper surface portion 32 is brought into close contact with the upper surface of the cap body wall 25 on the front end side of the rail body 21, and the fitting protrusion 33 on the front end side is fitted into the receiving recess 27 on the front end side of the rail body 21. Further, the rear end side fitting projection 34 is fitted into the rear end side receiving recess 28 of the rail body 21, and the rear end inner surface of the upper surface portion 32 is shifted from the rear end side of the rail body 21 to the front side. It is brought into close contact with the upper surface of the wall 26.

  As a result, the ventilation hole 24 and the ventilation / slide receiving hole 23 are completely covered by the cover / slide body 31, and the protective cap body 2 is exposed to rain when rain is applied to the top surface area of the protective cap body 2. The ventilation of the outside air into the inside is blocked, and at the same time, the inundation of rainwater into the protective cap body 2 is completely prevented.

  In the closed state of the cover / slide body 31 with respect to the rail body 21 as described above, the pair of convex portions 37 of the cover / slide body 31 are fitted in the pair of recesses 29 of the rail body 21, respectively. As a result, the cover / slide body 31 is locked when closed and stably maintains that state, so that it is possible to reliably prevent the ventilation of the outside air into the protective cap body 2 and the inundation of rainwater in the rain. No longer feel uncomfortable.

  On the other hand, in the case of fine weather or the like, FIG. 9 shows a one-touch sliding operation to the rear side of the cover / slide body 31 performed while the retaining projection 36 is fitted in the ventilation / slide receiving slot 23 of the rail body 21. In the open state, the inner surface on the rear end side of the upper surface portion 32 is brought into close contact with the upper surface of the cap body wall 26 shifted from the rear end of the rail body 21 to the front side, and the inner surface of the front end of the upper surface portion 32 is adjusted to the rail body. 21 is moved rearward from the cap body wall 25 on the front end side.

  At this time, the fitting protrusion 33 on the front end side moves rearward from the receiving recess 27 on the front end side of the rail body 21, and the fitting protrusion 34 on the rear end side moves rearward from the receiving recess 28 on the rear end side. .

  As a result, a flow path of outside air from the front end side of the cover / slide body 31 to the protective cap body 2 through the ventilation slot 24 and the ventilation / slide receiving slot 23 of the rail body 21 is formed.

  As a result, when the weather is fine, a sufficient amount of the hair, etc. of the driver wearing the protective cap 1 with the slide opening / closing type ventilation mechanism through the ventilation slot 24 and the ventilation / slide receiving slot 23 is sufficient. Outside air (air) will flow in, and the driver can obtain a comfortable feeling of use.

  Further, in the open state of the cover / slide body 31 with respect to the rail body 21 as described above, the pair of convex portions 38 of the cover / slide body 31 are fitted into the pair of recesses 30 of the rail body 21, respectively. As a result, the cover / slide body 31 is in a locked state when opened and stably maintains the state, so that the outside air can be surely ventilated into the protective cap body 2 during a fine weather, and the driver can There will be no unpleasant feeling that heat is trapped in the part.

  The effects of the closed state and the open state of the cover / slide body 31 as described above are the same in the two slide opening / closing type aeration mechanism parts 11, 11.

  In addition, the driver may adopt a switching mode in which one of the two slide opening / closing type ventilating mechanisms 11 and 11 is closed and the other is opened according to the situation such as the outside air temperature. Is possible.

  According to the present embodiment described above, it is possible to reliably prevent rainwater from entering the head during rainy weather, and to obtain a sufficient amount of ventilation to the head when it is not raining. It is possible to realize and provide the protective cap 1 with a slide opening / closing type ventilation mechanism portion which is excellent also in the switching operability of the cover / slide body 31 in FIG.

  Further, according to the protective cap 1 with the slide opening / closing type venting mechanism portion of the present embodiment, the slide opening / closing type venting mechanism portion 11 having the above-described configuration is provided in the top surface region of the protective cap main body 2. 2 and the slide opening / closing type ventilation mechanism section 11, and there is an advantage that the strength is enhanced as compared with the conventional structure.

  The present invention is applicable not only to the above-mentioned protective caps of general shapes, but also to a wide variety of protective caps of various shapes such as a full-face type, and is limited to protective caps for motorcycles and the like. It can also be applied to protective caps for workers who perform outdoor work such as civil engineering and construction.

DESCRIPTION OF SYMBOLS 1 Slide opening / closing type ventilation mechanism part protective cap 2 Protective cap main body 11 Slide opening / closing type ventilation mechanism part 12 Through long hole 21 Rail body 22 Rail 23 Ventilation and slide receiving long hole 24 Ventilation long hole 25 Cap body wall 26 Cap body wall 27 Receiving Recess 28 Receiving recess 29 Recess 30 Recess 31 Cover / slide body 32 Top surface 33 Insertion protrusion 34 Insertion protrusion 35 Slide engagement piece 36 Retaining protrusion 37 Protrusion 38 Protrusion

Claims (5)

A protective cap body that is attached to the head; a closed state that is provided in a top region of the protective cap body, and that shuts off the outside air into the protective cap body by sliding forward and backward; and in the protective cap body A protective cap with a slide opening / closing type ventilation mechanism comprising a slide opening / closing type ventilation mechanism that can be switched to an open state for venting outside air to
The slide opening / closing type ventilation mechanism is
A substantially rectangular through-hole provided in the front-rear direction in the top region of the protective cap body;
A pair of rails provided in the front-rear direction on the long sides of both sides, a vent hole in the front-rear direction, and a cap body wall provided on the front end side. And a rail body provided with a cap body wall shifted from the rear end side to the front side,
A substantially rectangular upper surface portion having a shorter dimension than the rail body, and a pair of slide engagement pieces that engage with a pair of rails of the rail body respectively suspended from both long sides of the upper surface portion, In the closed state by the sliding operation to the front side, the front end inner surface of the upper surface portion is brought into close contact with the cap body wall on the front end side of the rail body, and the rear end inner surface of the upper surface portion is shifted from the rear end side of the rail body to the front side. Closed to the body wall to block the ventilation of outside air into the body of the protective cap, and in the open state by the sliding operation to the rear side, the inner surface of the rear end side of the upper surface portion was shifted from the rear end of the rail body to the front side A cover that moves the inner surface of the front end of the upper surface portion rearward from the cap body wall on the front end side of the rail body while being in close contact with the cap body wall, and vents the outside air into the protective cap body through the ventilation hole of the rail body Cum slide body,
A protective cap with a slide opening / closing type ventilation mechanism characterized by comprising: A protective cap body that is attached to the head; a closed state that is provided in a top region of the protective cap body, and that shuts off the outside air into the protective cap body by sliding forward and backward; and in the protective cap body A protective cap with a slide opening / closing type ventilation mechanism comprising a slide opening / closing type ventilation mechanism that can be switched to an open state for venting outside air to
The slide opening / closing type ventilation mechanism is
A substantially rectangular through-hole provided in the front-rear direction while corresponding to the shape of the protective cap body in the top region of the protective cap body,
A pair of rails provided in the front-rear direction on both long sides, and a front-rear ventilation / slide, are fixed so as to close the whole through-slot hole while corresponding to the shape of the through-slot hole in a substantially upward U shape. A rail body comprising a receiving hole, a vent hole in the front-rear direction, a cap body wall provided on the front end side, and a cap body wall provided shifted from the rear end side to the front side;
A pair of slides that correspond to the shape of the rail body and that engage with a pair of rails of the rail body that respectively hang down from both sides of the top surface of the upper surface portion and a substantially rectangular shape that is shorter than the rail body. An engagement piece, and a retaining protrusion protruding from the back surface of the upper surface portion and fitted so as to occupy a part of the ventilation and slide receiving hole of the rail body, and the retaining protrusion In the closed state by the sliding operation to the front side while being fitted into the ventilation and slide receiving long hole of the rail body, the front end inner surface of the upper surface portion is brought into close contact with the cap body wall on the front end side of the rail body, and the upper surface portion The inner surface of the rear end is brought into close contact with the cap body wall that is shifted from the rear end side to the front side of the rail body to block the outside air from flowing into the protective cap body, and the projection for retaining the projection is a ventilation / slide length of the rail body. After doing while fitting in the hole In the open state by the sliding operation, the inner surface on the rear end side of the upper surface portion is brought into close contact with the cap body wall shifted from the rear end of the rail body to the front side, and the front end inner surface of the upper surface portion is disposed on the front end side of the rail body. A cover / slide body that allows the outside air to pass through the protective cap body through the ventilation slot and ventilation / slide receiving slot of the rail body, and the rear transition from the cap body wall;
A protective cap with a slide opening / closing type ventilation mechanism characterized by comprising: A protective cap body that is attached to the head; a closed state that is provided in a top region of the protective cap body, and that shuts off the outside air into the protective cap body by sliding forward and backward; and in the protective cap body A protective cap with a slide opening / closing type ventilation mechanism comprising a slide opening / closing type ventilation mechanism that can be switched to an open state for venting outside air to
The slide opening / closing type ventilation mechanism is
A through oblong hole having a substantially rectangular shape provided in the front-rear direction while corresponding to the shape of the protective cap body in the top region of the protective cap body, and having a protruding shape in which the center portion protrudes most at the front end side and the rear end side,
The front end side and the rear end side are each fixed in a substantially rectangular shape having a protruding shape corresponding to the protruding shape of the through long hole, and substantially upwardly U-shaped so as to close the entire through long hole, A pair of rails provided in the longitudinal direction on both long sides, a ventilation / slide receiving slot provided in the front / rear direction in the center between the pair of rails, and a passage provided in the longitudinal direction on both sides of the ventilation / slide receiving slot A long hole, a cap wall provided in a split arrangement with the front end side as a boundary, a cap wall provided in a split arrangement with the center portion as a boundary, and a front end side shifted from the rear end side to the front side A rail provided with a receiving recess provided between the cap body walls of the divided arrangement and a receiving recess provided between the cap wall of the split arrangement shifted from the rear end side to the front side;
Corresponding to the shape of the rail body, and having a shorter dimension than the rail body, and having a protruding shape corresponding to the protruding shape of the rail body on the front end side and the rear end side, respectively, the front end side and the rear end side A substantially rectangular upper surface portion having fitting projections to be fitted in the receiving recesses on the front end side and the rear end side of the rail body at the projecting shape central portion, respectively, and hanging from the long side portions on both sides of the upper surface portion. A pair of slide engaging pieces that engage with the pair of rails of the rail body, and a fitting that protrudes from the back surface of the upper surface portion and occupies a part of the ventilation and slide receiving long hole of the rail body In the closed state by the sliding operation to the front side, which is performed by fitting the protrusion for retaining in the ventilation and slide receiving long hole of the rail body, the inner surface of the front end of the upper surface portion is the rail body. Close to the cap wall on the front end side of the The fitting projection of the rail body is fitted into the receiving recess on the front end side of the rail body, the fitting projection on the rear end side is fitted into the receiving recess on the rear end side of the rail body, and the rear end inner surface of the upper surface portion is fitted to the rail body Close to the cap body wall shifted from the rear end side to the front side to block the ventilation of the outside air into the protective cap body, and the retaining projection is fitted into the ventilation and slide receiving hole of the rail body In the open state by the sliding operation to the rear side, the inner surface on the rear end side of the upper surface portion is brought into close contact with the cap body wall shifted from the rear end of the rail body to the front side, and the front end inner surface of the upper surface portion is moved to the front end of the rail body A cover / slide body that allows the outside air to flow into the protective cap body through the ventilation hole and the ventilation / slide receiving hole of the rail body, and the rear transition from the side cap body wall;
A protective cap with a slide opening / closing type ventilation mechanism characterized by comprising: The rail body has a concave portion provided on the outer wall portion in the width direction of the cap body wall on the front end side in the rail body, and the concave portion provided on the inner side in the vicinity of the front end of the slide engagement piece in the cover / slide body. A closing lock mechanism portion comprising a convex portion,
An open comprising a recess provided in the outer wall portion in the width direction of the cap body wall on the rear end side of the rail body, and a convex portion corresponding to the recess provided in the slide engagement piece in the cover / slide body. An hour lock mechanism,
The protective cap with a slide opening and closing type ventilation mechanism according to any one of claims 1 to 3.   5. The protection with a slide opening / closing type ventilation mechanism according to claim 1, wherein two slide opening / closing type ventilation mechanisms are provided in parallel in the top region of the protective cap main body. Cap.

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