JP2022081061A - Shield holder - Google Patents

Abstract

To provide a shield holder which widens a movable range where an attachment body sways relative to the head, prevents a force from concentrating only on an area due to the sway of the attachment body, and thereby being hardly damaged.SOLUTION: A shield holder 1 holds a shield S for protecting a head 10 of a user. The shield holder is composed of a U-shaped holding body 2 for supporting the shield S, a pair of left and right attachment bodies 3 and 3 which are attached to the head 10 and whose front and rear ends are opened, and a pair of left and right connecting bodies 4 and 4 for connecting the attachment bodies 3 and 3 to the inside of the holding body 2. The connecting body 4 has an S-shape having two bent portions 40 and 41 which serve as a holding body connecting part and an attachment body connecting part.SELECTED DRAWING: Figure 2

Description

The present invention relates to a shield holder that supports a shield member on a head in a face protector that protects the face with a shield.

As a face protector that covers the face with a transparent shield and protects the face from infectious droplets, chemicals, and the like, there is an invention according to Patent Document 1 as a prior art. The invention according to Patent Document 1 discloses a frame for a face protector including a main body frame mounted on the head and a shield frame for holding a shield member for protecting the face. The main body frame consists of a bridge arm extending from the frontal region to the temporal region to both sides of the occipital region and a pair of head arms formed by branching inward from the bridge arm. It is supported on the temporal region and the occipital region, and is supported on the frontal region by the second support portion at the tip of the head arm. Further, the main body frame adjusts the pressing force of the first support portion and the second support portion by using the first pressing pressure adjusting portion by the elastic deformation force of the bridge arm and the second pressure adjusting portion by the elastic deformation force of the head arm. It corresponds to individual differences in head size.

JP-A-2015-205104

The face protection frame of Patent Document 1 connects the shield frame and the main body frame, and requires a plurality of parts. Further, in the invention described in the same document, in addition to the shield frame, the main body frame has a U-shape and there is a frame located on the frontal region of the user, so that the first support which is the tip portion of the main body frame is present. When expanding the part, the range of motion could not be wide.

In addition, there is also a bifurcated form such as the bridge arm described in the prior art document, but when the user spreads the tip part of the main body frame, the force is inevitably concentrated on the branch part and it is damaged. It causes. In use, not only the opening and closing operation but also the force such as twisting acts on the frame, so that the force may be concentrated on the branch portion. Further, the shield covering the user's face holds a relatively long surface in the vertical direction from the vicinity of the user's head to the vicinity of the chin. Therefore, when expanding the tip of the main body frame, it is desirable not to affect the holding state of the shield.

Therefore, it is an object of the present invention to provide a shield holder that covers the face of the user and can widen the range of motion of the wearing portion of the head. At the same time, the shield holder is provided in a form in which the force is not concentrated on only one point of the frame and the holding state of the shield is not easily affected by the movement of the mounting portion.

The shield holder of the present invention includes a holding body that holds a shield for protecting the face, a wearing body that is attached to the user's head, and a connecting body that connects the holding body and the wearing body. It is a shield holder to have, the mounting body has a longitudinal direction in the front-rear direction, both front and rear ends are opened and arranged in a pair of left and right swingably, and the connecting body is a mounting body connected to the mounting body. It is characterized by having a body connecting portion, a holding body connecting portion having a fulcrum at which the mounting body swings and connecting to the holding body, and an intermediate portion between the mounting body connecting portion and the holding body connecting portion. Is to be.

Further, the holding body has a front side portion located in front of the frontal region of the user and a side side portion extending rearward from both ends of the front side portion, and the intermediate portion of the connecting body is , It is preferable to have a predetermined length along the longitudinal direction of the side portion of the holding body.

Further, the connecting body is continuous from the holding body connecting portion, which is the first bending portion bent so as to be continuously folded inward from the rear end of the side side portion of the holding body, and the inner front end of the holding body connecting portion. It is preferable to have an intermediate portion that faces forward and a mounting body connecting portion that is a second bending portion that is continuously bent inward from the front end of the intermediate portion and connected to the outer surface of the mounting body.

Further, the holding body forms a curved portion between the front side portion and the side side portions extending from both side ends of the front side portion, and the front side portion and the curved portion are opened upward. It is preferable to have an H-shaped cross section having an upper recess and a lower recess that opens downward.

Further, in the mounting body having a longitudinal direction in the front-rear direction, a contact portion that curves and abuts on the temporal region, a pad that abuts on the forehead, and an arm that protrudes from the front end of the abutment portion and connects to the pad. The arm is curved so as to be convex toward the holding body so that the direction of protrusion from the front end of the contact portion and the front-rear direction of the central portion of the pad are substantially orthogonal to each other in a plan view. It is preferable that the length between the rear ends of the abutting portions formed is shorter than the length between the pads.

Further, it is preferable that the contact portion of the mounting body has a non-slip portion extending in the vertical direction and the horizontal direction on the rear inner surface surface.

According to the first aspect of the present invention, the mounting body swings freely to widen the movable range by mounting the mounting body on the head with a pair of mounting bodies in which the front end and the rear end of the mounting body are open. It becomes possible to take. Further, by providing an intermediate portion between the mounting body connection portion connected to the mounting body and the holding body connecting portion serving as a fulcrum of swinging and setting both at different positions, the mounting body swings (opening / closing operation). It is possible to disperse such a force and a force such as twisting that may be applied when the mounting body is mounted, and it is possible to prevent damage.

According to the second aspect of the present invention, by aligning the intermediate portion in the longitudinal direction of the side portion of the holding body, a large range of motion is taken when expanding the two rear ends of the mounting body in the swing of the mounting body. Can be done. Further, it is possible to increase the distance from the mounting body to the holding body and disperse the bending stress over a wide range of the connecting body to facilitate elastic deformation of the entire connecting body.

According to the invention of claim 3, the connecting body is bent inward from the holding body to reduce interference with the holding body when the mounting body swings inside the holding body, and the mounting body is reduced. It is possible to stably shield the face by reducing the influence of the distortion and deviation due to the shaking applied on the holding body and the shield located on the outside.

According to the invention of claim 4, the upper and lower recesses are formed to improve the cross-sectional efficiency of the front side portion and the curved portion, prevent deformation such as twisting and bending of the holding body, and shield member. Distortion can be prevented.

According to the invention of claim 5, the pad can be elastically abutted on the forehead (forehead) by elastic deformation of the arm, and the abutting portion is abutted on the temporal region to attach the wearing body to the head. However, the pad can be elastically contacted with the forehead to prevent the mounting body from rotating in the left-right direction and shifting (sliding down) in the front-back direction. Further, since the pad is brought into contact with the bowl-shaped forehead toward the crown, it is possible to prevent the wearer from slipping downward due to the weight of the shield member. Further, since the pad elastically contacts the forehead, it is possible to prevent the pad from forming contact marks on the forehead even if the pad abuts without intervening hair.

According to the sixth aspect of the present invention, it is possible to prevent the wearable body from being displaced from the temporal region or the occipital region and to be stably mounted.

It is a perspective view which shows the state which the shield is attached to the shield holder of this invention, and is attached to the head of a user. It is a top view of the shield holder which concerns on embodiment of this invention. It is a perspective view of the shield holder which concerns on embodiment of this invention. FIG. 3 is an enlarged plan view of a pad and an arm of one of the mounting bodies of the embodiment of the present invention. FIG. 3 is an enlarged plan view of a part of one of the connectors according to the embodiment of the present invention. In the enlarged plan view of FIG. 5, the state in which the wearing body swings from the basic posture shown by the alternate long and short dash line is shown. It is a partially enlarged plan view which shows the operation state which makes it wide. FIG. 3 is a plan view showing a state in which the mounting body is swung so as to widen the rear end of the mounting body from the basic posture of FIG. 2. FIG. 2 is a cross-sectional view taken along the line AA of FIG.

Hereinafter, embodiments of the shield holder 1 according to the present invention will be described with reference to the accompanying drawings. The present invention is not limited to the following forms, and various modifications, additions, and the like can be made within the scope of the gist of the present invention.

In this description, the used state means a state of being worn on the user's head (see FIG. 1), and the basic posture means a state of not being used by the user (see FIG. 2). The front-rear direction will be described with the front side portion 20 side in FIG. 2 as the front side, the side having the non-slip portion 33 as the rear side, and specifically, the top and bottom of FIG. 2 as the front-rear direction. Further, the left-right direction is described as the left and right in FIG. 2, the inside / outside is described with the user side as the inside, and the opposite side is described as the outside, and the vertical direction is described as the upper side in the height direction in FIG. 3 up and down. The side will be described as the bottom.

As shown in FIG. 1, the shield holder 1 of the present embodiment holds the shield S covering the user's face by the user's head 10. The shield holder 1 of the present embodiment is integrally molded using a synthetic resin material. The synthetic resin material is, for example, a polycarbonate resin material, a polyacetal resin material, a polypropylene resin material, or the like, and a polycarbonate resin material having excellent creep characteristics is particularly preferable. Further, as the shield S, a flat plate-shaped resin plate having flexibility is used.

Next, the shield holder 1 will be described. As shown in FIGS. 2 and 3, the shield holder 1 holds a holding body 2 for holding the shield, and a pair of left and right wearing bodies 3 and 3 to be mounted on the user's head. It is composed of connecting bodies 4 and 4 that connect one end of the body 2 and the mounting bodies 3 and 3, respectively. The shield holder 1 has a symmetrical shape in the left-right direction of FIG.

As shown in FIGS. 1 and 2, the holding body 2 is a member that holds the shield S, and is bent from both side ends of the front side portion 20 having the left-right direction as the longitudinal direction and the rear side portion 20. It has a substantially U-shaped shape composed of two side portions 21 and 21 extending toward. The front side portion 20 is located in front of the frontal region of the user in the used state, and is curved between the two side portions 21 and 21 at both left and right ends of the front side portion 20. Curved portions 22, 22 are formed. The shield is held by the protruding locking portions 23, 23 arranged on the holding body 2. The mounting bodies 3 and 3 are connected from the rear ends of the two side portions 21 and 21 of the holding body 2 via the connecting bodies 4 and 4.

The pair of mounting bodies 3 and 3 are arranged so as to hold the user's head narrowly so that they can be mounted, and unlike the holding body 2 which has a substantially U-shape in a plan view, they are arranged on the left and right sides. It is a form separated from each other. It is not a series of pieces connected in a substantially U-shape as in the prior art, but the position corresponding to the central part of the frontal region of the user is eliminated. In other words, it is formed by opening the front end and the rear end of each of the mounting bodies 3, 3 and swinging (opening and closing) to widen the rear end of the mounting bodies 3, 3 to the left and right, and to widen the front end to the left and right. ) Wider range of motion. Further, in the plan view, the mounting bodies 3 and 3 have a portion rearward from the center protruding from the portion surrounded by the substantially U-shaped holding body 2. By projecting the rear portion from the holding body 2 in this way, it is possible to swing so as to widen the rear end side in particular. In this description, the swinging (opening / closing) operation indicates that the front and rear ends of the mounting bodies 3 and 3 are widened or narrowed as described above, but the vertical twisting under normal use conditions is also possible. It includes.

In the plan view of FIG. 2, the pair of mounting bodies 3 and 3 are plate-like objects having a long shape in the front-rear direction while being gently curved so as to be convex outward, and are held by the front end side from the center. It is located between (inside) the side portions 21 and 21 of the body 2. The mounting bodies 3 and 3 have contact portions 30 and 30 that can abut from the vicinity of the front side of the temporal region of the user to the vicinity of the posterior side of the temporal region, and a pad that abuts on the frontal region including the user's forehead. It consists of 31 and 31 and arms 32 and 32 protruding from the front end portions 30a and 30a of the contact portions 30 and 30 and connecting to the pads 31 and 31.

The rear end portions 30b, 30b of the curved contact portions 30, 30 are brought close to each other in a non-contact state in a plan view. As shown in FIG. 2, in the basic posture, the length between the two rear end portions 30b and 30b is shorter than the length between the pads 31 and 31 described later. With such a form, the elastic force is strengthened so as to support the user's head mainly at the rear end portions 30b and 30b of the contact portions 30, 30 and the user with the pads 31 and 31 described later. It can be applied to the frontal region of the body to maintain and stabilize the wearing posture (see FIG. 1).

Further, as shown in the perspective view of FIG. 3, the vertical width of the contact portions 30 and 30 is larger than that of the side side portions 21 and 21, but the contact portions 30 and 30 are rearward from the front end portions 30a and 30a. The vertical width is gradually reduced toward the rear end portions 30b and 30b. By making such a form, the rear end portions 30b and 30b of the mounting bodies 3 and 3 can be easily spread.

As shown in FIGS. 2, 3 and 4, the arms 32 and 32 are continuously formed from the front end portions 30a and 30a of the contact portions 30 and 30, and are formed as thin and thin thin portions, and the holding body 2 is formed. The front ends of the arms 32 and 32 are connected to the rear ends of the pads 31 and 31. The arms 32, 32 make it easy to elastically deform to the holding body 2 side outside the basic posture of the pads 31, 31.

The pads 31 and 31 have an elliptical shape having a longitudinal direction from the rear end to the front end, and in the enlarged view of FIG. 4, the pads 31 and 31 come into contact with the rear end portions 31a and 31a connected to the arms 32 and 32 and the user. It has a central portion 31b, 31b and a front end portion 31c, 31c. The front end portions 30a, 30a of the contact portions 30, 30 are once bent back toward the holding body 2, and the arms 32, 32 project so as to be continuous in the bending direction. Since the rear end portions 31a and 31a of the pad are bent toward the holding body 2, the front and rear directions of the user side surfaces of the central portions 31b and 31b of the pad in a plan view and the front and rear directions of the user side surface (virtual line B), and the arms 32 and 32. The protruding direction (virtual line C) intersects at a substantially right angle. This substantially right angle is a direction including a range of 15 degrees back and forth from a perfect right angle direction. By connecting the arms 32, 32 in a curved arc shape so as to be in a substantially right-angled direction, the arms 32, 32 can be easily elastically deformed, and the wearer 3, according to the shape of the user's head, 3 can be attached. The pads 31 and 31 can elastically contact the portion (forehead) above the eyebrows of the user's frontal region due to the elastic deformation of the arms 32 and 32 (see FIG. 1).

Further, as shown in FIG. 3, about one third of the longitudinal directions of the abutting portions 30 and 30 is rearward, except for the rear end portions 30b and 30b which are curved outward, and the non-slip portion 33 is on the inner surface. , 33. As shown in FIG. 3, the first non-slip portions 33a and 33a, which have a convex shape and are long in the vertical direction, and the second non-slip portions, which are also convex but long in the front-rear direction, have a horizontally long elliptical shape. A plurality of portions 33b and 33b are alternately arranged. The non-slip portions 33, 33 are slipped with respect to the user's head in both the vertical direction (vertical width direction of the contact portion 30) and the front-rear direction (longitudinal direction of the contact portion 30). Since the convex shape is a vertically long shape and a horizontally long shape, it can be easily manufactured by mold molding without deteriorating the releasability. It should be noted that other uneven shapes such as hemispheres and those to which a frictional resistance member such as rubber or silicon is added may be used.

Next, the connected bodies 4 and 4 will be described. As shown in FIG. 5, which is enlarged in addition to FIGS. First bent portions) 40, 40, mounting body connecting portions (second bent portions) 41, 41 bent so as to be convex toward the front, and a linear intermediate portion connecting these two members. It is composed of 42 and 42, and when the shapes of the peripheral holding body 2 and the mounting bodies 3 and 3 are combined, it becomes a substantially S-shaped shape as a whole. Since the two bent portions 40 and 41 exist independently in the connecting bodies 4 and 4, the portions to which the force is applied when the front and rear of the mounting bodies 3 and 3 are spread are dispersed.

A specific form of the holding body connecting portion (first bending portion) 40 and the mounting body connecting portion (second bending portion) 41 will be described. The holding body connecting portions 40, 40 are continuous from the rear ends of the side side portions 21, 21 of the holding body 2 having a predetermined length from the front to the rear, and are directed inward so as to be convex to the rear side. It is formed by bending it into a U shape at about 180 degrees. The bent portion may be formed by connecting a plurality of fine bends or by changing the bending direction.

Where the intermediate portions 42, 42 further continuous from the holding body connecting portions 40, 40 are arranged, the intermediate portions 42, 42 are the longitudinal direction of the holding body 2 and the longitudinal portions of the mounting bodies 3, 3 in the plan view of FIG. It has a predetermined length in the front-rear direction along the side side portions 21 and 21 of the holding body 2 so that the direction parallel to both is the longitudinal direction. In the present embodiment, the length of the intermediate portions 42, 42 is such that the connection position with the mounting bodies 3 and 3 is located at the center of the front and rear of the mounting body, and the length of the curved mounting bodies 3 and 3 is about 1/8 in the longitudinal direction. However, it may be another length such as one-fourth or one-tenth of the length of the wearing body. The intermediate portions 42, 42 are provided with forces applied in swinging by setting the holding body connecting portions (first bending portions) 40, 40 and the mounting body connecting portions (second bending portions) 41, 41 at different positions. It has a function of dispersing, and further has a function of having a predetermined length and widening the range of motion of the mounting bodies 3 and 3.

Further, the mounting body connecting portions (second bending portions) 41, 41 are formed by being bent 90 degrees inward so as to be convex inward, continuous from one end of the intermediate portions 42, 42. ing. The tips of the mounting body connecting portions 41 and 41 are connected to the outer surface of the mounting bodies 3 and 3 having longitudinal directions in the front-rear direction near the center of the front-rear direction. The mounting body connecting portions 41, 41 of the present embodiment are connected by the tip of the bent form, but are not shown as another embodiment, but are connected to the mounted body from the tip of the bent portion via a linear member. May be.

The swinging (opening / closing) operation of the mounting bodies 3 and 3 will be described. As shown in FIGS. 6A and 7, the connecting bodies 4 and 4 are first on the rear side of the two mounting bodies 3 and 3 when the mounting bodies 3 and 3 are mounted in accordance with the head 10. The rear end portions 30b, 30b of the contact portions 30, 30 are spread to the left and right, and the user's head 10 is pushed in. This operation makes it possible to swing so that the rear ends of the pair of mounting bodies 3 and 3 are widened because the front ends of the mounting bodies 3 and 3 are opened and separate from each other. It is connected by mounting body connecting portions (second bending portions) 41, 41 on the outer surfaces of the two mounting bodies 3, 3 and has intermediate portions 42, 42, 180 degrees from the rear end of the holding body 2. Swing around the bending apex of the bent holding body connecting portion (first bending portion) 40, 40 as a fulcrum.

Next, in order for the user to insert the head and bring the pads 31 and 31 into contact with each other, the user may swing the mounting bodies 3 and 3 so as to widen the front ends. As shown in the above, the bending vertices of the holding body connecting portions (first bending portions) 40 and 40 can be swung around the fulcrum.

If the holding body and the mounting body are simply connected, the force applied to the swing and the twisting force generated during the swing are concentrated on the swinging fulcrum and the connection position. In Nos. 4 and 4, the holding body connecting portions (first bending portions) 40 and 40, which serve as fulcrums during swinging, and the mounting body connecting portions (second bending portions) 41 and 41 are at different positions. It becomes possible to disperse the concentration of force during movement.

Although not shown in the present embodiment, in addition to swinging (opening / closing operation) of the mounting bodies 3 and 3, the rear ends of the two side portions 21 and 21 of the holding body 2 are opened / closed so as to expand outward. Perform the operations to be performed at the same time. As a result, the movable range of the swing of the mounting bodies 3 and 3 can be further increased. Further, the side portions 21 and 21 of the holding body 2 open and close, but due to the swinging (opening and closing operation) of the mounting bodies 3 and 3, the shield S of the holding body 2 may be displaced when the user is mounted or detached. The effect of this can be reduced.

Further, as shown in FIGS. 2, 3, and 8, the holding body 2 has a square bar shape, and the front-rear direction dimension (width dimension) of the front side portion 20 is the left-right direction dimension (width) of the side side portions 21 and 21. It is formed larger than the size), and the front side portion 20 and the curved portions 22, 22 are less likely to be deformed than the side side portions 21, 21. Further, the ribs 24 are formed so as to project further inward from the inner side surface to the curved portions 22, 22 and the side portions 21, 21.

In addition to the above, as shown in FIG. 1, the holding body 2 has a plurality of protruding locking portions 23, 23 protruding outward, and locks the shield S. The protruding locking portions 23, 23 have a pin shape with a wide tip of the shaft body, and a mounting hole (not shown) for the shield S is inserted through the shaft body to prevent it from coming off by the head portion and locked. ..

The protruding locking portions 23, 23 of the present embodiment are formed at four locations on the outer surfaces of the curved portions 22, 22 and the side side portions 21, 21, respectively, on the left and right sides. Since the left and right curved parts are supported by two places each, even if one curved part is attached and supported by two places and then bent to attach the other side, the support of one side attached earlier will come off. Is prevented.

Further, as shown in FIGS. 2, 3, and 8, the front side portion 20 of the holding body 2 has an H-shaped cross section having an upper recess 25a and a lower recess 25b to improve cross-sectional efficiency. It is reinforced against bending deformation to prevent twisting and bending of the holding body 2 and to reduce the weight. In the present embodiment, it is formed in a region extending from one curved portion 22 through the front side portion 20 to the other curved portion 22.

As shown in FIG. 8, specifically, a rectangular upper recess 25a formed by opening upward, a lower recess 25b formed by opening downward, an upper recess 25a and a lower recess 25b. It is composed of a bottom portion 26 for partitioning and has an H-shaped cross section recessed from both the top and bottom. The bottom portion 26 is formed in the center of the thickness dimension of the holding body 2 in the vertical direction, and the upper recess 25a and the lower recess 25b have a vertically symmetrical shape. By forming this cross section into an H shape, it is difficult for twisting and bending that occur when the mounting bodies 3 and 3 are swung (opened and closed) to occur at the front side portion 20 of the holding body 2, and the front surface of the user. The shielding surface of the shield S is prevented from bending.

1 ... shield holder, 2 ... holder, 3 ... mounting body, 4 ... connecting body, 10 ... head, 20 ... front side part, 21 ... side side part, 22 ... curved part, 23 ... protruding locking part, 24 ... rib, 25a ... upper recess, 25b ... lower recess, 26 ... bottom, 30 ... contact, 30a ... front end of contact, 30b ... rear end of contact, 31 ... pad, 31a ... Rear end portion of pad, 31b ... Central portion of pad, 31c ... Front end portion of pad, 32 ... Arm, 33 ... Non-slip portion, 40 ... Holding body connection portion (first bending portion), 41 ... Mounting body connection Part, 42 ... Middle part, S ... Shield.

Claims (6)

A shield holder having a holder for holding a shield for face protection, a wearer for mounting on the user's head, and a connecting body for connecting the holder and the wearer.
The attached body has a longitudinal direction in the front-rear direction, and is arranged in a pair on the left and right so as to be swingable with both front and rear ends open.
The connecting body includes a mounting body connecting portion connected to the mounting body, a holding body connecting portion having a fulcrum at which the mounting body swings and connecting to the holding body, and the mounting body connecting portion and the holding body connection. A shield holder characterized by having an intermediate portion between the portions. The retainer has a front side portion located anterior to the frontal region of the user and a side side portion extending rearward from both ends of the front side portion.
The shield holder according to claim 1, wherein the intermediate portion of the connecting body has a predetermined length along the longitudinal direction of the side side portion of the holding body. The connecting body is a holding body connecting portion which is a first bending portion bent so as to be continuously folded inward from the rear end of the side portion of the holding body, and the connecting body is continuously formed from the inner front end of the holding body connecting portion. 2. Shield holder described in. The retainer forms a curved portion between the front side portion and the side portion extending from both side ends of the front side portion.
The shield holder according to claim 3, wherein the front side portion and the curved portion have an H-shaped cross section having an upper concave portion opened upward and a lower concave portion opened downward. .. The wearer having a longitudinal direction in the front-rear direction includes an abutting portion that curves and abuts on the temporal region, a pad that abuts on the forehead, and an arm that protrudes from the front end of the abutting portion and connects to the pad. Become,
The arm is formed in a curved shape that is convex toward the holding body so that the direction protruding from the front end of the contact portion and the front-rear direction of the central portion of the pad are substantially orthogonal in a plan view.
The shield holder according to any one of claims 1, 2, 3 or 4, wherein the length between the rear ends of the contact portion is shorter than the length between the pads. The shield holder according to claim 5, wherein the contact portion of the mounting body has a non-slip portion extending in the vertical direction and the horizontal direction on the rear inner surface surface.

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