JP7309173B2 - folding helmet - Google Patents

Description

The present invention relates to a folding helmet that can be folded in normal times, and can be quickly assembled and used in an emergency such as an earthquake or when performing work, and can quickly shift from a folded state to a used state (assembled state). , the invention relates to a structure capable of reliably maintaining the state of use.

Collapsible helmets have been proposed in the past, mainly for use in emergency situations. In Patent Document 1, it is composed of a plurality of divided bodies, and is composed of an annular divided body including an open portion of the cap body inlet, a bowl-shaped divided body including the top of the cap body, and an annular divided body between them. , a structure having a connecting portion for rotatably connecting the divided bodies and a locking portion for fixing the relative positions of the divided bodies.

JP 2014-234562 A

The helmet described in Patent Literature 1 has split bodies that are rotatably connected at the front of the cap body, and locking parts that lock the split bodies in the used state at the rear part of the cap body. In this prior art helmet, each slice-shaped split body is supported only at the front and rear. I had to bend up and down.

Therefore, there has been a demand for a folding helmet that has a divided cap body that has a predetermined strength and that is hard to bend.

In view of the above problems, the folding helmet of the present invention comprises a substantially hemispherical crown forming a crown portion, and an annular base portion disposed below the crown, wherein the crown is the base portion. The base portion includes an outer ring member, an inner ring member arranged on the inner circumference of the outer ring member, and a position where the outer ring member and the inner ring member intersect. It is characterized by comprising a lateral rotation shaft that supports the outer annular member and the inner annular member in a relatively rotatable manner.

Further, the rotation shaft has an axial direction extending from one side to the other side on both sides of the outer annular member and the inner annular member, and in the state of use, the outer annular member The outer annular member and the inner annular member are connected so that the front portion of the inner annular member is positioned continuously with the front portion of the inner annular member, and the rear portion of the outer annular member is positioned continuously with the rear portion of the inner annular member. It is preferable that they intersect and rotate relative to each other.

Also, the apex has front and rear connecting portions that are connected to the base portion, and the front connecting portion extends downward from the apical portion and is connected to the lower edge of the inner annular member so as to be rotatable in the vertical direction, The rear connecting portion rotatably connects the lower edge of the top portion and the upper edge of the inner annular member, and the rear connecting portion is formed of a material having elasticity and protrudes outward in use. It is preferred to have curved surfaces to form.

According to the first aspect of the present invention, the base portion is relatively rotated by the side rotation shaft to stand up and put into use state, so that the base portion overlaps sideways more than the state in which the base portion is simply stacked. It is possible to provide a folding helmet consisting of a base portion that is reinforced with each other and is difficult to bend.

According to the second aspect of the present invention, the base portion has an X shape when viewed from the side in use, so that it is difficult to bend. In addition to this, the front and rear portions of the outer annular member and the inner annular member are positioned continuously in front and rear, so that the front and rear can be firmly held.

According to the third aspect of the present invention, the top of the head rotates about the front as the rotation axis, contrary to the side rotation axis of the base, and the rotation direction is changed to make it difficult to bend in the use state. Helmets can be provided. In addition, since the rear connecting portion has an outwardly convex curved surface, it can withstand impacts from above while in use and can be properly maintained in use. it becomes possible to

1 is an assembled perspective view of a folding helmet according to an embodiment of the present invention; FIG. Figure 2 is a side view of the folding helmet of Figure 1; FIG. 2 is a cross-sectional view of the folding helmet of FIG. 1; Fig. 2 is a perspective view of the folding helmet of Fig. 1 in a folded state; Figure 5 is a side view of the folding helmet of Figure 4;

An embodiment of the present invention will be described in detail based on the drawings. 2 is defined as the upper side, the base portion 2 side is defined as the lower side, the flange 10 side is defined as the front side, the opposite side is defined as the rear side, and the side on which the rotation shafts 5 and 5 are located is defined as the side side. .

As shown in FIG. 1, this embodiment according to the state of use includes a substantially hemispherical parietal region 1 that forms the parietal region, a frontal region and temporal region of the human head that are arranged below the parietal region 1, It consists of a base portion 2 in which an outer annular member 3 and an inner annular member 4, which are two toric rings for protecting the occipital region, are combined.

The top portion 1 has a shape in which a substantially hemispherical cup-like shape is turned upside down. As shown in FIG. 3, when viewed from the side, the rear lower edge of the crown 1 is set to a height that is about 1/4 lower than the crown position, and from that height position to the center of the entire cap body in the front-rear direction. It inclines downward to a position slightly in front of the rotating shafts 5, 5, and gently inclines forward by changing the angle of inclination. In addition, a proximal surface 1a extending downward and adjacent to the inner surface of the inner annular member 4 is arranged at the front. Thus, the parietal portion 1 has an inverted cup shape with the curved surface facing upward, and the side edges have a fan-like (V-shaped) shape when viewed from the side.

As shown in FIGS. 1 and 2, the base portion 2 is composed of two headband-shaped annular members, an outer annular member 3 and an inner annular member 4, and is positioned at the center position in the front-rear direction on the side surface. The rotation shafts 5, 5 are made to cross each other. Both the outer annular member 3 and the inner annular member 4 gradually increase in vertical width from the front to the rear.

The outer annular member 3 is formed with a flange 10 protruding from the lower front side of the cap body, and is arranged so as to rise upward toward the rear in use. The outer circumference of the inner annular member 4 is one size smaller than that of the outer annular member 3, and in the state of use, the outer surface of the inner annular member 4 is positioned so as to contact the inner surface of the outer annular member 3 and intersect in an X shape. In this state of use, the front portion 4a of the inner annular member 4 is located above the front portion 3a of the outer annular member 3, and the rear portion 4b of the inner annular member 4 is positioned above the rear portion 4b of the inner annular member 4 via the central intersection position. The rear portion 3b of the outer annular member 3 is located at the position.

The outer annular member 3 and the inner annular member 4 that form the base portion 2 are arranged such that the inner annular member 4 is arranged inside the outer annular member 3 in the folded state, and the crown portion 1 is further inside the inner annular member 4 . is positioned and housed so as to be buried (see FIGS. 4 and 5).

The rotating shafts 5, 5 are pivotally supported on both left and right sides of the outer ring member 3 and the inner ring member 4, respectively, and are positioned near the lower side of the center in the front-rear dimension. The rotation shafts 5, 5 are located on both sides of the helmet in the axial direction from one side to the other side, and the lateral direction is the axial direction. Disk members larger than the diameter of the shaft are arranged at both ends of the shaft so as not to fall out of the shaft hole. In the state of use, the pivot shafts 5, 5 appear to be located on both sides of the outer annular member 3 and at the central position in the front-rear direction.

The left and right side portions of the inner annular member 4 receive rotating shafts 5, 5, respectively. , 6. The receiving parts 6, 6 are positioned so that the outer ring member 3 and the inner ring member 4 can slide back and forth relative to each other when assembled into the use state. In order to be slidable in the folded state, long holes extend rearward from the positions of the rotating shafts 5, 5 in the used state.

The rotation shafts 5, 5 and the receiving portions 6, 6 are axially supported to position the rotating shafts 5, 5 on the front side of the receiving portions 6, 6 so that the outer annular member 3 and the inner annular member 3 are connected to the base portion 2. The inner annular member 4 is arranged inside the outer annular member 3 by positioning the rotating shafts 5, 5 on the rear side of the receiving portions 6, 6. state. In this state of use, the outer annular member 3 and the inner annular member 4 are in the shape of an X when viewed from the side, and can be switched between the folded state in which the folded state is in the shape of a horizontal letter when viewed from the side.

The engagement state of the parietal portion 1, the outer annular member 3, and the inner annular member 4 will be described with reference to FIG. First, the parietal portion 1 is rotatably connected near the lower edge on the back side of the front portion 4a of the inner annular member 4 by the front connecting portion 7 arranged at the tip of the front proximal surface 1a. The front connecting portion 7 is formed with a left-right axis 7a, and is held by a bearing (not shown) in the inner annular member 4, so that the top of the head 1 can be rotated vertically by the axis of the front connecting portion 7. and

The rear portion of the parietal portion 1 is connected by a rear connecting portion 8 near the upper edge of the rear surface side of the rear portion 3b of the outer annular member 3 . The rear connecting portion 8 is a plate-shaped member made of an elastic material that curves with a radius of curvature smaller than that of the rear portion 4b of the inner annular member 4, and is arranged on the rear rear surface side of the parietal portion 1 and the rear portion 3b of the outer annular member 3. The left and right direction shafts 8a and 8b are connected via extension portions 8c and 8c extending from the upper and lower edges of the rear connecting portion 8 so as to be partially bendable. The rear connecting portion 8 is curved so as to be convex backward in use, but in the folded state, it can be turned around by the upper shaft 8a and reversed so that the convex is facing forward. The rear connecting portion 8 can be freely rotated forward and reversed by the two left-right direction shafts 8a and 8b and the extension portions 8c and 8c. 1 can exhibit elasticity against impact from above and absorb the impact.

In use, the rear lower end of the parietal portion 1 is supported from below by the receiving portion 3c projecting inward from the upper edge of the rear portion 3b of the outer annular member 3. As shown in FIG. When the state of use is released and shifted to the folded state, the rear connecting portion 8 of the parietal portion 1 rotates about the lower left-right direction axis 8b as a starting point and is turned upside down, and the entire parietal portion 1 becomes the front connecting portion 7. , and is housed so as to sink downward.

Next, in the engaged state of the base portion 2, the lower end of the front portion 4a of the inner annular member 4 is engaged with the inner side of the upper end of the front portion 3a of the outer annular member 3 in the use state. This prevents the front portion 4a of the inner annular member 4 from rising more than necessary. On the other hand, the inside of the lower end of the rear portion 3b of the outer annular member 3 can be placed and fixed while partially overlapping the upper end of the rear portion 4b of the inner annular member 4. As shown in FIG. The inner annular member 4 has a stepped portion 14 that is recessed forward at the rear portion 4b, and the stepped portion 14 eliminates distortion with the rear portion 3b of the outer annular member 3 and avoids contact when shifting from the folded state to the used state. are doing.

The inner annular member 4 is formed with notch portions 17, 17 having a predetermined height from the lower end near both sides of the front portion 4a. The cutouts 17, 17 are engaged with projections 3d, 3d projecting from the front portion 3a of the outer annular member 3 during use, so that the used state of the outer annular member 3 and the inner annular member 4 can be maintained. can. Specifically, the protrusions 3d, 3d protrude inward from the lower end of the back side of the outer annular member 3, and the cutouts 17, 17 have an irregular quadrilateral shape, and the front upper corners thereof The projecting portions 3d, 3d are engaged so as to be obliquely hooked to the portion to be. The engagement/holding manner for maintaining engagement between the outer annular member 3 and the inner annular member 4 is not limited to this embodiment, and may be other manners.

The inner peripheral surface of the front portion 3a of the outer annular member 3 and the inner peripheral surface of the rear portion 4b of the inner annular member 4 are provided with attachment portions 16 for attaching attachment members such as hammocks and chin straps. A hammock, a chin strap, or the like that can be used as a helmet can be attached to the attachment portion 16 .

Next, the operation of the folding helmet of this embodiment from the use state to the folded state or from the folded state to the use state will be described. The movement from the used state to the folded state is performed by pushing the inner annular member 4 forward along the longitudinal direction (front-rear direction) of the receiving portion 6 to push the outer annular member 3 and the inner annular member 4 from the front and rear to bend them. Then, while releasing the engagement and holding between the outer annular member 3 and the inner annular member 4, the rotating shaft 5 is moved rearward within the receiving portion 6 to release the fixed posture. Then, the inner annular member 4 is rotated about the rotation shafts 5, 5 so that the front portion 4a and the rear portion 4b of the inner annular member 4 are positioned to overlap the front portion 3a and the rear portion 3b of the outer annular member 3, The inner annular member 4 is housed inside the outer annular member 3 . Further, the crown 1 slightly pulls up the rear connecting portion 8 to release the engagement with the rear portion 3b of the outer annular member 3, and rotates downward starting from the front connecting portion 7 so as to invert the rear connecting portion 8. It moves and is housed in the inner circumference of the inner annular member 4, and the folding is completed.

The operation from the folded state to the used state will be described. First, the top portion 1 is rotated upward from the front connecting portion 7 so as to invert the rear connecting portion 8, and protrudes upward from the inside of the base portion 2 composed of the outer annular member 3 and the inner annular member 4. . Then, the outer annular member 3 is rotated around the rotation shafts 5, 5 so that the front portion 3a and the rear portion 3b of the outer annular member 3 are placed and engaged with the front portion 4a and the rear portion 4b of the inner annular member 4, and the outer annular member 3 is deployed. Then, the rotating shafts 5, 5 are moved within the receiving portion 6 and engaged with the outer annular member 3 and the inner annular member 4 while being bent so as to be in the use state.

DESCRIPTION OF SYMBOLS 1... Top part 2... Base part 3... Outer annular member 3a... Front part 3b... Rear part 4... Inner annular member 4a... Front part 4b... Rear part 5... Rotating shaft 6... Receiving part , 7... front connecting portion, 8... rear connecting portion

Claims (3)

It consists of a substantially hemispherical crown forming the crown and an annular base disposed below the crown,
the top portion can be accommodated in the inner peripheral space of the base portion;
The base portion includes an outer annular member, an inner annular member arranged on the inner circumference of the outer annular member, and a position where the outer annular member and the inner annular member intersect with each other. A folding helmet characterized by comprising a lateral pivot shaft for relatively rotatably supporting a . The rotation shaft has an axial direction from one side to the other side on both sides of the outer annular member and the inner annular member,
The outer annular member is positioned so that, in use, the front portion of the outer annular member is positioned continuously with the front portion of the inner annular member, and the rear portion of the outer annular member is positioned continuously with the rear portion of the inner annular member. 2. The folding helmet according to claim 1, wherein the annular member and the inner annular member intersect and rotate relative to each other. The crown has front and rear connecting portions that connect to the base portion,
The front connecting portion extends downward from the top portion and is connected to the lower edge of the inner annular member so as to be vertically rotatable, and the rear connecting portion connects the lower edge of the top portion and the upper edge of the inner annular member. rotatably connected,
3. The folding helmet according to claim 1 , wherein the rear connecting portion is made of an elastic material, and has a curved surface that protrudes outward in use.

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