JP6122539B1 - Reversing helmet - Google Patents

Abstract

[PROBLEMS] To provide a helmet that can be reduced in volume and more convenient and safe. A reversible helmet comprising a base body and a movable part obtained by dividing the helmet body into two parts, and a first rotating shaft capable of rotating the movable part relative to the base with the horizontal direction as an axial direction. And a reversing unit having at least a second rotating shaft capable of rotating the movable unit with the direction orthogonal to the first rotating shaft as an axial direction. At the top of the base, there is a step with the convex part on the inner peripheral side and the concave part on the outer peripheral side. A part or all of the movable part that is vertically inverted by the reversing part is accommodated inside the base part when integrated and reversed. [Selection] Figure 1

Description

  The present invention relates to helmets for working, driving, sports, military, disaster prevention, and the like, and more particularly, a helmet capable of reducing the volume of the helmet by inverting a part of the helmet when not in use. About.

Various structures such as a separation type, a reversing type, and a folding type have been developed as a helmet having a mechanism capable of reducing (reducing) the volume of the helmet when not in use.
For example, the helmet described in Patent Document 1 is a detachable helmet, which can be integrated by dividing the helmet body into two parts up and down and engaging the upper cap with the lower transparent protective body. In some cases, the cap is pressed from above to release the engaged state with the transparent protective body, and the cap is suspended by the suspended body provided inside the transparent protective body, and is accommodated in the transparent protective body. It has a structure.
Further, the helmet described in Patent Document 2 is a reversing helmet, and the helmet body is divided into two in the vertical direction, and the upper dome-shaped shell member is connected to the lower annular shell member via a pivot that extends in the left-right direction. The structure is connected so that it can be reversed.

JP 2004-084145 A Japanese Patent No. 5908929

However, the helmet according to Patent Document 1 has at least one of the problems described below.
(1) Since the engagement state between the cap and the transparent protective body is released by the pressing force from above, there is a difficulty in a protective function due to an impact such as a falling object.
(2) When the engagement mechanism becomes sweet, the cap falls and the feeling of use is bad.
(3) In the case of rain or the like, rain easily collects at the engagement portion between the cap and the transparent protective body, and water leaks into the helmet through the gap between the engagement portions.
(4) Since the cap and the transparent protective body are connected by the suspended body, if the suspended body is broken and the members are separated, the whereabouts of the members cannot be understood.

Moreover, in the helmet which concerns on patent document 2, it has at least any one problem among the problems described below.
(5) The reversing operation of the dome-shaped shell member is realized by sliding the pivot in the elongated hole to shift the relative position between the dome-shaped shell member and the annular shell member. There is a possibility that the dome-shaped shell member slides and reverses due to the pressing force from above, and lock means for positioning the dome-shaped shell member in the non-inverted state is essential.
(6) In order to shift the relative position between the dome-shaped shell member and the annular shell member, it is necessary to flatten the contact surface between the dome-shaped shell member and the annular shell member. Water easily leaks into the helmet through the gap between the member and the annular shell member.
(7) Since the reversing operation of the dome-shaped shell member is realized by shifting the relative position between the dome-shaped shell member and the annular shell member, the dome-shaped shell member is caused to swing back and forth in the non-reversed state. In order to avoid water leakage from the gap, the locking means shown in (5) is essential.

  As described above, an object of the present invention is to provide a helmet that can be reduced in volume and that is more convenient and safe.

The first invention of the present application, which has been made to solve the above-mentioned problems, is a reversible helmet, which is divided into two parts, a base body and a movable part, and is movable relative to the base with the horizontal direction as an axial direction. A reversing unit having at least a first rotating shaft capable of rotating the portion and a second rotating shaft capable of rotating the movable portion with the direction orthogonal to the first rotating shaft as an axial direction, At the upper part of the base part, a step is provided with the convex part on the inner peripheral side and the concave part on the outer peripheral side, and at the time of non-inversion, the base part and the movable part are at least fitted with the lower edge of the movable part in the concave part. It is characterized in that a part or all of the movable part that is integrated upside down and turned upside down by the reversing part is accommodated inside the base part.
Further, according to a second invention of the present application, in the first invention, the movable portion is provided with an overhanging portion located on the inner peripheral side with respect to the lower edge of the movable portion. The protruding portion of the base is sandwiched by the protruding portion.
In the third invention of the present application, in the first invention or the second invention, when the base and the movable part are integrated , the movable part is moved relative to the base in the front-rear direction. The base portion and the movable portion are further provided with an engagement mechanism that is detachable.
According to a fourth invention of the present application, in any one of the first to third inventions, the insertion hole provided in the movable portion when the base portion and the movable portion are integrated is not reversed. A fixing pin that is regulated to be inserted into the base is provided at the base, and the fixing of the base and the movable part can be released by pulling out the fixing pin from the insertion hole .

According to this invention, it has at least any one effect among the effects described below.
(1) The outer surface of the helmet can have continuity.
With the reversing part interposed between the base part and the movable part, the movable part can be in a reversed posture.
Therefore, it is possible to secure the continuity of the outer surface of the helmet that could not be realized unless the base and the movable part are completely separated from each other.
If the continuity of the outer surface of the helmet can be ensured, a step or a large gap is not generated on the outer surface at the connecting portion between the base and the movable part in the use state.
(2) It is difficult for water to enter from the gap between the base and the movable part.
Since the connection surface which becomes a clearance gap between a base and a movable part contains a substantially horizontal surface, at the time of use of a helmet, it is hard for water to penetrate | invade into a clearance gap.
(3) The risk of flooding into the helmet can be suppressed.
Due to the step provided at the base, the helmet is not flooded.
(4) The moving part can be prevented from sinking.
Since the convex portion provided on the base portion is sandwiched between the lower edge of the movable portion and the protruding portion, the movable portion does not open and sink downward with respect to the pressing force from above.

1 is a schematic perspective view showing a reversing helmet according to the present invention. The schematic rear view which shows an inversion part. The schematic bottom view which shows each cross-sectional line. The schematic sectional drawing in the AA line which shows the inversion structure of a base and a movable part. The schematic sectional drawing in the BB line which shows the sedimentation prevention structure of a base and a movable part. The schematic sectional drawing in CC line which shows the fixed structure of a base and a movable part. The schematic perspective view which shows the fixed structure of a base and a movable part. Schematic which shows the state at the time of non-inversion. Schematic which shows the fall state and inversion state of a movable part. Schematic which shows the state which returned the movable part which reversed to the base.

  Embodiments of the present invention will be described below with reference to the drawings.

<1> Overall configuration (Fig. 1)
FIG. 1 is a schematic view showing the overall shape of a reversing helmet according to the present invention.
The reversible helmet according to the present invention includes a base 10 and a movable part 20 formed by dividing the helmet body into two parts up and down, and a reversing part 30 for enabling the movable part 20 to be reversed up and down with respect to the base 10. At least comprise.
Details of each component will be described below.

<2> Base (Fig. 1)
The base 10 is a member corresponding to the lower part of the helmet body divided in the vertical direction.
Although well-known interior parts such as sweat stoppers, chin straps, headbands, inner caps and the like are appropriately provided on the base 10 so as to be detachable, the illustration in each drawing is omitted.

<3> Movable part (Fig. 1)
The movable part 20 is a member corresponding to the upper part of the helmet body divided vertically.
In the present embodiment, the movable portion 20 has a substantially bowl shape, and the lower portion of the movable portion 20 is connected to the upper portion of the base portion 10 to construct a helmet body in which both are integrated.

<3.1> Division position with base (FIG. 1)
In addition, the dividing line of the helmet body that divides into the base 10 and the movable part 20 has a problem in accommodating a part or all of the movable part 20 inside the base 10 after the reversing operation of the movable part 20 described later. What is necessary is just to set suitably in the range which does not exist.

<4> Water stop mechanism between the base and the movable part (FIG. 1)
In the present embodiment, water stoppage is ensured by using a spigot fitting at the connecting portion between the base portion 10 and the movable portion 20.
This inlay fitting is configured such that the lower edge of the movable portion 20 is fitted into the concave portion 11 provided on the outer peripheral side of the helmet in the upper portion of the base portion 10.

By this inlay fitting, a step 13 is formed between the concave portion 11 and the convex portion 12 having an end surface at a position higher than the concave portion 11.
Even if water infiltrates from the gap leading to the outer periphery of the helmet, the water is blocked by the step 13, so that the water does not enter the inside of the helmet unless the helmet is tilted.

<5> Inversion part (FIG. 2)
The reversing part 30 is provided so as to be interposed between the base 10 and the movable part 20, and the movable part 20 is detached and rotated with respect to the base 10, so that the movable part 20 is turned upside down. It is means for positioning on the upper side.
In the present embodiment, as shown in FIG. 2, the reversing unit 30 is disposed behind the helmet.
The reversing unit 30 is composed of a first rotating shaft 31 and a second rotating shaft 32 that are arranged at positions separated by a predetermined length and exhibit an axial direction orthogonal to each other.
Hereinafter, the details of each rotating shaft will be described with reference to FIG. 4, which is a cross-sectional view taken along line AA shown in FIG. 3.

<5.1> First rotating shaft (FIG. 4)
The first rotating shaft 31 is a rotating shaft for changing the posture so that the movable unit 20 stands or falls with respect to the base 10.
In the present embodiment, the first rotating shaft 31 is attached to the base portion with the direction extending horizontally to the left and right sides of the helmet as the rotating shaft direction, and the movable portion stands up with respect to the base portion by the rotating operation of the rotating shaft. The posture can be changed so as to fall down.

<5.2> Second rotating shaft (FIG. 4)
The second rotating shaft 32 is a rotating shaft for taking the movable portion 20 upside down by setting the movable portion 20 in a direction orthogonal to the first rotating shaft 31.
In the present embodiment, the second rotating shaft 32 is attached to the movable unit 20 with the direction orthogonal to the first rotating shaft 31 as the axial direction. The two rotating shafts 32 themselves are structured to rotate.

<6> Other Mechanisms Further, the movable helmet according to the present invention can include any of the mechanisms described below.

<6.1> Settling prevention mechanism (FIGS. 1 and 5)
The settling prevention mechanism is a mechanism for preventing the movable part 20 from sinking to the base 10 side by a pressing force from above the helmet.
The anti-settling mechanism is configured such that one shell is sandwiched between the other shells in the shell constituting the base 10 or the movable part 20 at the connection portion between the base 10 and the movable part 20. Prevents misalignment in the horizontal direction.
In this embodiment, the lower edge 21 of the movable part 20 fitted in the recess 11 of the base part 10 and the overhang part 22 separately provided on the inner peripheral side of the movable part 20 are formed for the water stop mechanism. The structure which pinches the convex part 12 of the base 10 is exhibited.

  With this structure, even if a large pressing force is applied to the movable portion 20 from above, the opening of the movable portion 20 can be suppressed and the sinking of the movable portion 20 into the base portion 10 can be prevented.

<6.2> Fixing mechanism (FIGS. 1, 6 and 7)
The fixing mechanism is a mechanism for fixing the base portion 10 and the movable portion 20 to each other.
As the fixing mechanism, known engaging means can be appropriately employed.
Hereinafter, details of the fixing mechanism employed in this embodiment will be described.

<6.2.1> Fixing with engaging claws (Fig. 1)
In the present embodiment, two engaging claws 23 are provided on the front side, both sides, and the back side of the movable portion 20.
Further, the base 10 is provided with an engaged portion 14 capable of locking the engaging claw 23.
The engaging mechanism by the engaged portion 14 and the engaging claw 23 is configured to be detachable by sliding the movable portion 20 relative to the base portion 10 in the front-rear direction of the helmet.

<6.2.2> Fixing with fixing pins (Figs. 6 and 7)
In the present embodiment, a fixed pin 15 that is movable up and down and an insertion hole 24 provided in the movable portion are provided on the front side of the base portion 10. The fixing pin 15 is inserted into the insertion hole 24 so that both can be fixed.
The fixing pin 15 is regulated so that it can be released from the fixed state with the insertion hole 24 by being pulled downward, and can be returned to the initial position of the state inserted into the insertion hole 24 by a separately provided elastic member or the like. .

<7> Use image (FIGS. 8 to 10)
Hereinafter, the deformation | transformation aspect of the inversion-type helmet which concerns on a present Example is demonstrated, referring FIGS.
<7.1> When not inverted (FIG. 8)
At the time of non-inversion shown in FIG. 7 (the state where the base and the movable part are integrated), the second rotating shaft 32 has the vertical direction (top and bottom direction) of the helmet as the axial direction. This is a state in which the movable unit 20 cannot be inverted up and down.

<7.2> Rotating operation by the first rotating shaft (FIG. 9A)
First, the forward rotation operation of the movable part 20 by the first rotating shaft 31 is performed, and the movable part 20 is raised or laid down.
At this time, when the movable portion 20 is erected with the first rotation shaft 31, the fixed pin 15 is pulled out downward to unlock the fixed state between the base portion 10 and the movable portion 20, and further to the base portion 10. On the other hand, it is necessary to release the engagement state by the engaging claw 23 and the engaged portion 14 by sliding the movable portion 20 backward.

Note that the rotation angle by the first rotation shaft 31 is considered to have a lower limit in a range where the base does not become an obstacle in the rotation operation of the movable portion by the second rotation shaft, and an upper limit of about 180 °. There is no particular limitation.
FIG. 6 shows a state where the rotation angle of the first rotation shaft 31 is approximately 160 ° and the movable part 20 is slightly laid down.

<7.3> Rotating operation by the second rotating shaft (FIG. 9B)
Thereafter, from the state in which the movable part 20 is laid down, the movable part 20 is rotated by approximately 180 ° with the second rotating shaft 32.

<7.4> Storage operation of movable part (FIG. 10)
Finally, a reverse rotation operation is performed by the first rotating shaft 31, and the movable portion 20 in the reversed state is returned to above the base portion 10.
At this time, the zenith portion of the movable portion 20 is housed inside the base portion 10, the height of the entire helmet is compressed and compact, and the volume of the entire helmet can be reduced.

<7.5> Summary As described above, in the present invention, after the rotating operation by the first rotating shaft 31, the reversing operation of the movable part 20 by the second rotating shaft 32 is performed, and then the first rotation is performed again. By adopting the procedure of rotating the shaft 31 so as to return to the original position, a part or all of the movable portion 20 inverted up and down can be accommodated in the base portion 10.

DESCRIPTION OF SYMBOLS 10 Base part 11 Concave part 12 Convex part 13 Step 14 Engagement part 15 Fixed pin 20 Movable part 21 Lower edge 22 Overhang part 23 Engagement claw 24 Insertion hole 30 Inversion part 31 1st rotating shaft 32 2nd rotating shaft 40 Rotating hook

Claims (4)

Reversing helmet,
A base part and a movable part formed by dividing the helmet body into two parts vertically;
A first rotating shaft capable of rotating the movable portion relative to the base with the horizontal direction as an axial direction, and a second rotating shaft capable of rotating the movable portion with the direction orthogonal to the first rotating shaft as the axial direction. Having at least an inversion part,
On the upper part of the base, a step is provided with the inner peripheral side as a convex part and the outer peripheral side as a concave part,
At the time of non-inversion, the base and the movable part are integrated with at least the lower edge of the movable part fitted in the recess,
At the time of inversion, a part or all of the movable part inverted up and down with the inversion part is accommodated inside the base part,
Reversing helmet. The movable part is provided with a projecting part located on the inner peripheral side of the lower edge of the movable part,
At the time of non-inversion, the convex part of the base is sandwiched between the lower edge and the overhanging part of the movable part,
The inversion helmet according to claim 1. When the base portion and the movable portion are integrated , the movable portion is further moved relative to the base portion in the front-rear direction when the base portion and the movable portion are not reversed. Features
The inversion helmet according to claim 1 or 2. When the base and the movable part are integrated, at the time of non-inversion, a fixed pin that is restricted to be inserted into the insertion hole provided in the movable part is provided in the base.
The fixing of the base and the movable part can be released by pulling out the fixing pin from the insertion hole .
The inversion helmet according to any one of claims 1 to 3.

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