Patent Description:
The existing helmet is generally composed of a helmet body, an inner buffer layer and a wearing device, wherein the helmet body is generally made of hard materials. The buffer layer (body) is arranged on the inner surface of the helmet body for absorbing the impact force generated, and the wearing device is used for fixing the helmet body to the head of a human body.

The buffer layer inside the helmet on the market is basically made of plastic materials, such as EPS, EPP, etc., and there are certain shortcomings in the use process:
The buffer layer has single material and single color. For beautification, the surface is often painted with color ink, film, etc., which increases the processing complexity of the buffer layer and also increases the production cost to a certain extent.

Moreover, the texture of the buffer layer is not particularly good. The texture is single. According to different used materials, the buffer layer is either hard or soft. Based on this, in order to increase the beauty of the buffer layer of the helmet and improve a good feeling of contact between the buffer layer of the helmet and the head (such as softness, comfort, etc.), providing a helmet including a sawdust buffer body has good market prospects.

The document <CIT>, which discloses the preamble of claims <NUM>, <NUM>, <NUM>, <NUM> and <NUM>, describes a system and method for custom forming protective helmets to fit the unique shape and measurements of a customer's head. The process involves obtaining head data, including the length, width, and specific contours of the customer's head, using methods such as photographs or scans. Using the collected data, a computerized 3D model of the customer's head is generated. This 3D headform is then compared to helmet safety standards to ensure compliance. Based on the 3D headform, a custom helmet is produced at a different location, ensuring it conforms to the precise topography of the customer's head and meets safety standards. This inovation involves a complex, costly customization process using traditional materials and advanced technology. It lacks focus on environmental sustainability.

The document <CIT> describes a complete helmet assembly designed for sports like baseball, softball, and cricket. It features an inner helmet assembly similar to standard helmets, combined with an exterior shell assembly. The exterior shell assembly includes multiple layers, with an outer hard elastic layer and an inner plastically deformable layer that acts as a crumple zone. This crumple layer deforms upon impact and can be replaced after significant damage. The inner helmet remains reusable, while the outer shell can be easily replaced to restore full protective capability. This innovation requires complex manufacturing with a multi-layer component, increasing production costs and complexity and does not follow an eco-friendly approach.

The purpose of the present invention is to provide a sawdust helmet and a manufacturing method to solve problems proposed in the background.

To achieve the above purpose, the present invention provides the following technical solution: a sawdust helmet comprises an outer housing; a buffer body containing sawdust is installed at the inner side of the outer housing; the buffer body is integrally formed, and the size of the buffer body is adapted with the size of the outer housing; a fabric inner cushion body is padded at the inner side of the buffer body; and a helmet belt is fixedly installed at the bottom of the outer housing.

The buffer body is composed of a sawdust layer and a foam material layer;.

The sawdust layer is composed of cork chips or non-cork chips.

As a preferred solution of the present invention, the foam material layer has two layers, and the sawdust layer is pressed in the middle of the two foam material layers.

As a preferred solution of the present invention, the foam material layer is provided with a plurality of grooves; the sawdust layer is provided with bulges adapted with the grooves; and when the foam material layers and the sawdust layer are pressed, the bulges are buckled inside the grooves.

As a preferred solution of the present invention, the foam material layer has three layers; the sawdust layer is arranged between two adjacent foam material layers, and a plurality of wedge blocks are connected between the two sawdust layers penetratively; the surfaces of the foam material layers are provided with wedge grooves adapted with the sizes of the wedge blocks; and when the foam material layers and the sawdust layers are pressed, the wedge blocks are buckled inside the wedge grooves.

As a preferred solution of the present invention, the sawdust layer is a round or polygonal sawdust insert; the surface of the foam material layer is provided with an embedding groove adapted with the sawdust insert; and when the foam material layer and the sawdust layer are pressed, the sawdust insert is buckled inside the embedding groove.

As a preferred solution of the present invention, the bottom of the sawdust layer is provided with a wavy first arc part; the surface of the foam material layer is provided with a wavy second arc part; and when the foam material layer and the sawdust layer are pressed, the first arc part and the second arc part are closely fitted.

A manufacturing method of the sawdust helmet, used for manufacturing the sawdust helmet of any one of the above, comprises the following steps:.

As a preferred solution of the present invention, in the step S2, the sawdust of the sawdust layer is evenly or unevenly distributed on the surface of the foam material layer; then the buffer body is processed by extrusion and high temperature steam forming; and the number, size and shape of the sawdust of the sawdust layer on the surface of the foam material layer are not limited, and can be adjusted according to the buffering performance need of the buffer body.

As a preferred solution of the present invention, after the sawdust layer and the foam material layer are pressed and formed in the step S2, the sawdust layers with different shapes and arrangement modes form decorative layers on the surface of the buffer body.

Compared with the prior art, the present invention has the following beneficial effects:.

The drawings are used to provide further understanding for the present invention and constitute part of the description. The drawings are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the drawings:.

In the drawings: <NUM> outer housing; <NUM> buffer body; <NUM> sawdust layer; <NUM> bulge; <NUM> wedge block; <NUM> sawdust insert; <NUM> first arc part; <NUM> foam material layer; <NUM> groove; <NUM> wedge groove; <NUM> embedding groove; <NUM> second arc part; <NUM> fabric inner cushion body; <NUM> helmet belt.

The technical solutions in the embodiments of the present invention will be clearly and fully described below in combination with the drawings in the embodiments of the present invention. Apparently, the described embodiments are merely part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those ordinary skilled in the art without contributing creative labor will belong to the protection scope of the present invention.

By referring to <FIG>, the present invention provides the following technical solution: a sawdust helmet comprises an outer housing <NUM>; a buffer body <NUM> containing sawdust is installed at the inner side of the outer housing <NUM>; the buffer body <NUM> is integrally formed, and the size of the buffer body <NUM> is adapted with the size of the outer housing <NUM>; a fabric inner cushion body <NUM> is padded at the inner side of the buffer body <NUM>; and a helmet belt <NUM> is fixedly installed at the bottom of the outer housing <NUM>. The buffer body <NUM> is composed of a sawdust layer <NUM> and a foam material layer <NUM>. The sawdust layer <NUM> is composed of cork chips or non-cork chips.

Specifically, through the selection of the buffer body <NUM> processed by integral formation of the sawdust layer <NUM> and the foam material layer <NUM>, the buffer body <NUM> can be formed quickly. Because the sawdust material is selected creatively in the buffer body <NUM>, through the selection of the sawdust with different shapes, sizes and materials and combined with the foam material layer <NUM>, the performance of the softness and the comfort of the buffer body <NUM> can be increased according to the processing need of the buffer body and the good feeling of contact between the buffer body <NUM> and the head is improved so that the helmet adapted with the buffer body is more competitive in the market. The padded fabric inner cushion body <NUM> is in contact with the head and has good air permeability, which can further increase the comfort of wearing the helmet. The installed helmet belt <NUM> can be provided with a belt buckle. When the helmet is worn, the helmet belt <NUM> is locked by the belt buckle. The helmet is effectively prevented from accidentally slipping off the head of a wearer in the event of an accident.

By referring to <FIG>, in the present embodiment: the foam material layer <NUM> has two layers, and the sawdust layer <NUM> is pressed in the middle of the two foam material layers <NUM>.

Specifically, two foam material layers <NUM> are selected, then the sawdust layer <NUM> is clamped between the two foam material layers <NUM>, and the buffer body <NUM> is processed by extrusion and high temperature steam processing pressing process. The buffering performance of the buffer body <NUM> can be effectively ensured by matching the sawdust layer <NUM> with the foam material layers <NUM>. Of course, those skilled in the art can also select two sawdust layers <NUM>, and then a foam material layer <NUM> is clamped between the sawdust layers <NUM> and then molded and processed to obtain the buffer body <NUM>. The buffer body <NUM> can also be used for providing good buffering performance for the helmet.

By referring to <FIG>, in the present embodiment: the foam material layer <NUM> is provided with a plurality of grooves <NUM>; the sawdust layer <NUM> is provided with bulges <NUM> adapted with the grooves <NUM>; and when the foam material layer <NUM> and the sawdust layer <NUM> are pressed, the bulges <NUM> are buckled inside the grooves <NUM>.

Specifically, when the foam material layer <NUM> is processed, a plurality of grooves <NUM> are processed at the same time. When the sawdust layer <NUM> is processed, a plurality of bulges <NUM> are processed. When the sawdust layer <NUM> and the foam material layer <NUM> are pressed and formed by extrusion and high temperature steam processing, the bulges <NUM> are buckled inside the grooves <NUM>, which can effectively ensure the firmness of the two when pressed. The sawdust layer <NUM> provided with a plurality of bulges <NUM> simultaneously can also change the buffering performance of the buffer body <NUM>, increase the applicability of the buffer body <NUM> and realize the personalized customization of the buffer body <NUM>.

By referring to <FIG>, in the present embodiment: the foam material layer <NUM> has three layers; the sawdust layer <NUM> is arranged between two adjacent foam material layers <NUM>, and a plurality of wedge blocks <NUM> are connected between the two sawdust layers <NUM> penetratively; the surfaces of the foam material layers <NUM> are provided with wedge grooves <NUM> adapted with the sizes of the wedge blocks <NUM>; and when the foam material layers <NUM> and the sawdust layers <NUM> are pressed, the wedge blocks <NUM> are buckled inside the wedge grooves <NUM>.

Specifically, when the foam material layer <NUM> is processed, a plurality of wedge grooves <NUM> are processed at the same time. When the sawdust layer <NUM> is processed, a plurality of wedge blocks <NUM> are processed individually. When the sawdust layer <NUM> and the foam material layer <NUM> are pressed and formed by extrusion and high temperature steam processing, the wedge blocks <NUM> are buckled inside the wedge grooves <NUM>, which can also effectively ensure the firmness of the two when pressed. The sawdust layer <NUM> provided with a plurality of wedge blocks <NUM> simultaneously can also change the buffering performance of the buffer body <NUM>, also increase the applicability of the buffer body <NUM> and realize the personalized customization of the buffer body <NUM>.

By referring to <FIG>, in the present embodiment: the sawdust layer <NUM> is a round or polygonal sawdust insert <NUM>; the surface of the foam material layer <NUM> is provided with an embedding groove <NUM> adapted with the sawdust insert <NUM>; and when the foam material layer <NUM> and the sawdust layer <NUM> are pressed, the sawdust insert <NUM> is buckled inside the embedding groove <NUM>.

Specifically, when the foam material layer <NUM> is processed, the embedding groove <NUM> is processed at the same time. The sawdust insert <NUM> adapted with the embedding groove <NUM> is processed as the sawdust layer <NUM>. When the sawdust layer <NUM> and the foam material layer <NUM> are pressed and formed by extrusion and high temperature steam processing, the sawdust insert <NUM> is embedded inside the embedding groove <NUM>, which can also effectively ensure the firmness of the two when pressed. The sawdust insert <NUM> arranged simultaneously can also change the buffering performance of the buffer body <NUM>, also increase the applicability of the buffer body <NUM> and realize the personalized customization of the buffer body <NUM>. Through the selection of the sawdust inserts <NUM> with different shapes, the sawdust layer <NUM> can form different decorative patterns.

By referring to <FIG>, the bottom of the sawdust layer <NUM> is provided with a wavy first arc part <NUM>; the surface of the foam material layer <NUM> is provided with a wavy second arc part <NUM>; and when the foam material layer <NUM> and the sawdust layer <NUM> are pressed, the first arc part <NUM> and the second arc part <NUM> are closely fitted.

Specifically, when the foam material layer <NUM> is processed, the second arc part <NUM> is processed at the same time. When the sawdust layer <NUM> is processed, the first arc part <NUM> is processed at the same time. When the sawdust layer <NUM> and the foam material layer <NUM> are pressed and formed by extrusion and high temperature steam processing, the second arc part <NUM> and the first arc part <NUM> are closely fitted, which can also effectively ensure the firmness of the two when pressed. The first arc part <NUM> arranged at the same time is matched with the sawdust layer <NUM>, which can also change the buffering performance of the buffer body <NUM>, also increase the applicability of the buffer body <NUM> and realize the personalized customization of the buffer body <NUM>.

In the present embodiment: in the step S2, the sawdust of the sawdust layer <NUM> is evenly or unevenly distributed on the surface of the foam material layer <NUM>; then the buffer body <NUM> is processed by extrusion and high temperature steam forming; and the number, size and shape of the sawdust of the sawdust layer <NUM> on the surface of the foam material layer <NUM> are not limited, and can be adjusted according to the buffering performance need of the buffer body <NUM>.

Specifically, the buffering performance of the buffer body <NUM> can be adjusted by flexibly selecting the number, size and shape of the sawdust of the sawdust layer <NUM>.

In the present embodiment: after the sawdust layer <NUM> and the foam material layer <NUM> are pressed and formed in the step S2, the sawdust layers <NUM> with different shapes and arrangement modes form decorative layers on the surface of the buffer body <NUM>.

Claim 1:
A sawdust helmet, comprising an outer housing (<NUM>), wherein a buffer body (<NUM>) containing sawdust is installed at the inner side of the outer housing (<NUM>); the buffer body (<NUM>) is integrally formed, and the size of the buffer body (<NUM>) is adapted with the size of the outer housing (<NUM>); a fabric inner cushion body (<NUM>) is padded at the inner side of the buffer body (<NUM>); and a helmet belt (<NUM>) is fixedly installed at the bottom of the outer housing (<NUM>);
the buffer body (<NUM>) is composed of a sawdust layer (<NUM>) and a foam material layer (<NUM>);
the sawdust layer (<NUM>) is composed of cork chips or non-cork chips
characterized in that
the foam material layer (<NUM>) has two layers, and the sawdust layer (<NUM>) is pressed in the middle of the two foam material layers (<NUM>).