Ergonomic rolling scraper

Abstract

The utility model discloses an ergonomic rolling scraper, which relates to the technical field of vacuum bag sealing, and comprises a plate body, wherein the plate body is provided with a rolling plane, a gripping piece is arranged on a side of the plate body away from the rolling plane, the outer wall of the gripping piece is arranged in an arc shape that fits the palm of a human body, and the cross-sectional area of ​​the plate body along the direction from the gripping piece to the rolling plane gradually decreases, and the arrangement of the gripping piece facilitates the operator to directly grip the plate body, and the arc-shaped arrangement ensures that the hand will not be injured, conforms to the ergonomic design, and the cross-sectional area gradually decreases from top to bottom, so that the gripping end can apply a force to more effectively control the angle and orientation of the rolling plane, facilitate the adjustment of the rolling plane, and improve work efficiency and quality.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum bag sealing, in particular to an ergonomic rolling scraper. Background Art

[0002] The vacuum bag-autoclave molding method is one of the most efficient and common methods for producing high-performance composite materials. Putty strips are often used as intermediate adhesives when sealing vacuum bags. The putty strips are rolled and pressed by a scraper to keep the vacuum bag and the tooling well sealed and no air leakage is allowed. When laying composite materials, a scraper is also required to tightly fit the prepreg layer to the tooling or another layer. The sealing degree of the putty strips and the compactness of the layer rolling determine whether the composite parts are qualified, so rolling is particularly critical in the process of preparing composite materials.

[0003] In current production, most operators use flat rectangular block scrapers or press directly with their palms, which has the following defects:

[0004] 1) Affecting product quality: Since the scraper is straight, it is difficult for operators to grasp it, and it is difficult to press and compact the complex shapes of the tooling (such as the areas with large curvature of the female mold, etc.), resulting in bridging and edge vacuum bag leakage, which can easily lead to scrapped parts.

[0005] 2) Physical harm to operators: During the rolling process, the square tool is pressed on the base of the thumb, and the wrist and elbow are bent at a large angle. The force cannot be directly transmitted to the scraper. While exerting effort, the palm and other joints are under considerable and continuous pressure. Operators who have been engaged in the composite layup process for a long time are prone to hand diseases such as tenosynovitis and joint strain. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the utility model is: how to improve the operability of the rolling and squeezing scraper and reduce the influence of the rolling and squeezing scraper on the health of the hands.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] An ergonomic rolling scraper comprises a plate body, the plate body is provided with a rolling plane, a gripping piece is arranged on one side of the plate body away from the rolling plane, the outer wall of the gripping piece is arranged in an arc shape that fits the palm of a human body, and the cross-sectional area of ​​the plate body along the direction from the gripping piece to the rolling plane gradually decreases. The arrangement of the gripping piece facilitates the operator to directly grip the plate body, and the arc-shaped arrangement ensures that the hand will not be injured, conforms to the ergonomic design, and the cross-sectional area gradually decreases from top to bottom, so that the force applied by the gripping end can more effectively control the angle and orientation of the rolling plane, facilitates the adjustment of the rolling plane, and improves work efficiency and quality.

[0009] Furthermore, the plate body is provided with a through hole, and the gripping member includes an arc surface provided at one end of the plate body away from the rolling plane. In a working state, the user's fingers pass through the through hole and the palm abuts against the arc surface. The gripping member is specifically limited to an open hole design to reduce material consumption.

[0010] Furthermore, the plate body is a fan-shaped plate, the rolling plane is a transverse cross-sectional surface of the plate body on the side close to the fan-shaped top angle, the arc surface is an arc surface at one end of the plate body away from the fan-shaped top angle, the through hole is provided on the side of the plate body close to the arc surface, and the cross-sectional profile of the arc surface along the thickness direction of the plate body is an arc shape. Such a design is easy to process and can fit the palm of the hand for grasping, will not cause damage to the hand, and the applied effect is more stable.

[0011] Furthermore, the central angle of the plate body is 60°-120°. This design makes the entire plate body more beautiful and facilitates the stable dispersion of the force to the rolling plane.

[0012] Furthermore, the thickness of the plate body gradually decreases along the direction from the arc surface to the rolling plane, and the arc surface used for holding has a larger thickness, which is convenient for holding with force.

[0013] Furthermore, the inner wall of the through hole on one side close to the arc surface has the same curvature as the arc surface, so that when the operator holds it, the curvature of the contact surface between the fingers and the palm is consistent, which is easy to process and provides a better grip.

[0014] Furthermore, the angular portions of the plate are all rounded, which can prevent the edges of the plate from causing damage to the hands.

[0015] Furthermore, the plate body is made of nylon PA66, which further limits the material and has the advantages of being able to contact with uncured composite materials, being light in weight and having high strength.

[0016] The beneficial effects of the utility model are:

[0017] The gripping piece is set to facilitate the operator to directly grip the plate, and the arc-shaped setting ensures that the hands and other parts of the body will not be damaged. It conforms to the ergonomic design, saves effort when applying force, reduces the pressure on the palm and elbow, and reduces the damage to the body after long-term work. In addition, the cross-sectional area gradually decreases from top to bottom, so that the force applied by the gripping end can more effectively control the angle and direction of the rolling plane, facilitate the adjustment of the rolling plane, and perform tight and precise rolling operations on the area to be rolled, thereby improving work efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is the front view of the utility model;

[0020] Figure 3 It is a left view of the utility model;

[0021] Marked in the figure, 1-plate body, 2-arc surface, 3-through hole, 4-rolling plane. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] like Figure 1-Figure 3 As shown, the embodiment of the present application proposes an ergonomic rolling scraper, including a plate body 1, the plate body 1 is provided with a rolling plane 4, a gripper is provided on the side of the plate body 1 away from the rolling plane 4, the outer wall of the gripper is an arc-shaped setting that fits the palm of the human body, and the cross-sectional area of ​​the plate body 1 along the direction from the gripper to the rolling plane 4 gradually decreases, the gripper is provided to facilitate the operator to directly hold the plate body 1, and the arc-shaped setting ensures that the hand and other parts of the body will not be damaged, conforming to the ergonomic design, and it is more labor-saving when applying force, reducing the pressure on the palm and elbow, and reducing the damage to the body under long-term work. Moreover, the cross-sectional area gradually decreases from top to bottom, so that the force applied by the gripping end can more effectively control the angle and orientation of the rolling plane 4, facilitate the adjustment of the rolling plane 4, and perform tight and precise rolling operations on the area to be rolled, thereby improving work efficiency and quality.

[0024] The above-mentioned board body 1 is made of nylon PA66 as a whole. The main reason for nylon is that it is a contact material, that is, it can be in direct contact with uncured composite materials (prepreg) without affecting subsequent part molding. In addition, compared with wood or metal materials, it has a lighter weight and better handling performance.

[0025] It should be noted that the cross-sectional area of ​​the plate body 1 along the direction from the gripping piece to the rolling plane 4 gradually decreases, which means that the entire plate body 1 is a cone with one end larger than the other end. The operator grasps the larger end and disperses the force evenly and stably to the rolling plane 4 with a smaller size, which makes it convenient for the operator to control the entire device to achieve the operation of rolling the rubber strips in different postures or angles, thereby ensuring the operator's operating comfort and work quality.

[0026] The above-mentioned gripping member can be a gripping handle or a grip that is separately arranged on the plate body 1, which can be stably gripped by the operator's hand, and the outer wall of the gripping handle or the grip is an arc-shaped setting that fits the palm of the human body, conforms to the ergonomic design, and ensures the force transmission effect. In order to simplify the structure of the entire rolling and scraping plate, the above-mentioned plate body 1 is provided with a through hole 3, and the above-mentioned gripping member includes an arc surface 2 that is arranged at one end of the above-mentioned plate body 1 away from the above-mentioned rolling and pressing plane 4. In the working state, the user's finger passes through the above-mentioned through hole 3 and the palm abuts against the above-mentioned arc surface 2. That is to say, the above-mentioned through hole 3 and the arc surface 2 form a rod-shaped or The columnar portion, the user passes the finger through the through hole 3, the front of the finger abuts against the upper wall of the through hole 3, and the palm abuts against the curved surface 2, to achieve a stable gripping effect. To ensure the comfort of use, the position of the through hole 3 on the plate body 1 can ensure that an ordinary person's finger passes through the through hole 3 and the palm can stably abut against the curved surface 2, and the specific shape of the through hole 3 can be circular or elliptical. Preferably, the shape of the through hole 3 is specifically formed by upper and lower arcs, and the curvature of the upper arc is smaller than that of the lower arc, to ensure that the user's finger abutting position is relatively flat, and the lower arc is concave to a large extent, to ensure that the user's finger passes through stably without hindrance.

[0027] With regard to the specific shape of the above-mentioned plate body 1, the above-mentioned plate body 1 is arranged in a fan-shaped pancake shape, the above-mentioned rolling plane 4 is the transverse cross-section of the above-mentioned plate body 1 close to the side of the fan-shaped top angle, the above-mentioned arc surface 2 is the circular arc surface 2 of the above-mentioned plate body 1 away from the end of the fan-shaped top angle, and the cross-sectional profile of the above-mentioned arc surface 2 along the thickness direction of the above-mentioned plate body 1 is an arc shape, that is, the above-mentioned plate body 1 is arranged in a fan-shaped plate-like manner with a certain thickness, and the top angle part is cut to form the rolling plane 4, thereby ensuring that the cross-sectional area of ​​the above-mentioned plate body 1 along the direction from the above-mentioned gripping member to the above-mentioned rolling plane 4 gradually decreases, and the operator grasps the larger end and disperses the force evenly and stably to the smaller rolling plane 4, so that the operator can control the entire device to realize the operation of rolling the rubber strips in different postures or angles, thereby ensuring the operator's operating comfort and work quality.

[0028] Furthermore, the central angle of the plate body 1 is 60°-120°, and preferably, the entire sector plate is designed as a quarter of a circle, that is, the central angle is 90°. Such a design can be easily processed, has a better effect on force dispersion, and has a regular shape and good appearance.

[0029] In order to further improve the force dispersing performance of the plate body 1, the thickness of the plate body 1 gradually decreases along the direction from the arc surface 2 to the rolling plane 4, so that the plate body 1 is arranged in a pyramid shape that is larger at the top and smaller at the bottom.

[0030] In order to further ensure the comfort of the user, the inner wall of the through hole 3 on one side close to the arc surface 2 has the same curvature as the arc surface 2, so that the curvature of the user's finger contact surface and the palm contact surface are the same, ensuring better comfort.

[0031] In order to prevent the edges of the entire plate 1 from causing damage to the user's hands and to prevent the edge of the rolling plane 4 from causing damage to the working plane rubber strip or seal, the inner wall of the through hole 3 on one side close to the arc surface 2 has the same curvature as the arc surface 2.

[0032] In summary, the embodiment of the present application proposes an ergonomic rolling scraper, including a plate body 1, the plate body 1 is provided with a rolling plane 4, a gripping piece is provided on the side of the plate body 1 away from the rolling plane 4, the outer wall of the gripping piece is an arc-shaped setting that fits the palm of the human body, and the cross-sectional area of ​​the plate body 1 along the direction from the gripping piece to the rolling plane 4 gradually decreases, which is more labor-saving when applying force, reduces the pressure on the palm and elbow, and reduces the damage to the body under long-term work. Moreover, the cross-sectional area gradually decreases from top to bottom, so that the force applied by the gripping end can more effectively control the angle and orientation of the rolling plane 4, facilitate the adjustment of the rolling plane 4, and perform tight and precise rolling operations on the area to be rolled, thereby improving work efficiency and quality, and the structure is simple and easy to process.

Claims

1. Ergonomic rolling scraper, characterized by: The invention comprises a plate body (1), wherein the plate body (1) is provided with a rolling plane (4), a gripping piece is arranged on a side of the plate body (1) away from the rolling plane (4), the outer wall of the gripping piece is arranged in an arc shape to fit the palm of a human body, and the cross-sectional area of ​​the plate body (1) gradually decreases along the direction from the gripping piece to the rolling plane (4).

2. The ergonomic rolling scraper according to claim 1, characterized in that: The plate body (1) is provided with a through hole (3), and the gripping member comprises a curved surface (2) provided at one end of the plate body (1) away from the rolling plane (4). In a working state, a user's fingers pass through the through hole (3) and the palm of the user abuts against the curved surface (2).

3. The ergonomic rolling scraper according to claim 2, characterized in that: The plate body (1) is a fan-shaped plate, the rolling plane (4) is a transverse cross-sectional surface of the plate body (1) on a side close to the fan-shaped vertex, the arc surface (2) is an arc surface (2) at one end of the plate body (1) away from the fan-shaped vertex, the through hole (3) is provided on a side of the plate body (1) close to the arc surface (2), and the cross-sectional profile of the arc surface (2) along the thickness direction of the plate body (1) is an arc shape.

4. The ergonomic rolling scraper according to claim 3, characterized in that: The central angle of the plate body (1) is 60°-120°.

5. The ergonomic rolling scraper according to claim 3, characterized in that: The thickness of the plate body (1) gradually decreases in the direction from the curved surface (2) to the rolling plane (4).

6. The ergonomic rolling scraper according to claim 2, characterized in that: The inner wall of one side of the through hole (3) close to the curved surface (2) has the same curvature as the curved surface (2).

7. The ergonomic rolling scraper according to any one of claims 1 to 6, characterized in that: All the angular parts on the plate body (1) are rounded.

8. The ergonomic rolling scraper according to claim 1, characterized in that: The plate body (1) is made of nylon PA66.

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