TWM545031U - Dust-collection cover of hole-drilling saw - Google Patents

Description

Rotary hole saw dust cover

This creation relates to a dust collection structure, and in particular to an innovative structural type revealer for use with a rotary hole saw.

According to the conventionally known rotary hole saw, it is used for drilling round holes in wood or metal parts, such as mounting holes for horn locks on the door panel, or setting holes for the lamp holders on the ceiling. Etc., when it is used, the core of the saw seat is inserted and locked, and the core is first drilled into the plate to maintain the center. The sawing cutter is used to cut the circumference of the saw blade to cut the circumference of the saw blade. The round hole is cut out; however, in order to avoid the dropping of the shavings generated during the drilling, or when the drilling is performed on the ceiling, the shavings are easily dropped into the eyes of the worker, which affects the work, so there is a matching rotation. The dust cover used in the hole saw was introduced.

The conventional dust collecting cover comprises a transparent casing, so as to be directly sleeved on the outer side of the rotary saw, so that the state of the rotary saw can be directly observed through the dust collecting cover during the processing, and simultaneously The transparent housing is used to receive the shavings generated during the cutting. Although the conventional dust collecting cover can solve the aforementioned drawbacks, there are still some unsatisfactory aspects in practical use. First of all, the shavings falling in the transparent shell are also rotated synchronously by the high-speed rotation of the rotary saw, which not only blocks the worker's line of sight, but also makes it impossible for the worker to clearly observe the rotary hole saw. Progress and state; secondly, the bottom of the transparent casing will be scratched by the friction with the high-speed rotating swarf, thereby affecting the see-through effect of the transparent casing; The bottom of the transparent casing of the dust collecting cover is designed to be flat, so it is easy to accumulate shavings. When the shavings accumulate to a certain height, it will not only affect the normal turning action of the sawing blade, but also affect the transparent shell. The perspective effect of the body, so the user must pause frequently to remove the debris accumulated in the transparent shell, which not only affects the working accuracy, but also affects the precision of the drilling.

In addition, the conventional dust collecting cover usually has an anti-slip rubber ring on the end edge of the open end to achieve high stability during operation. However, the conventional anti-slip rubber apron is still in the assembly mode or in practical use. There are many areas for improvement. For example, in the new patent case No. M244141 published in China, the "Rotary Hole Saw Group Structure Improvement" (hereinafter referred to as the 141 case) is mainly based on the plural apertures of the open top ring edge of the transparent cover shell. The anti-slip mat (anti-slip rubber ring) has a plurality of extensions in the lower part of the mushroom shape, and the positioning of the anti-slip mat (slip rubber ring) is achieved. The anti-slip mat (anti-slip rubber ring) of the 141 case is fixed in a point-like manner. Therefore, the anti-slip mat (anti-slip rubber ring) between the two fixed points cannot be completely fitted with the dust collecting cover, so the stability is not Good, it may cause the displacement of the dust cover in use, affecting the processing precision of the hole saw. Another example is the "Rotary Saw Set Structure Improvement (1)" (hereinafter referred to as 542 case) disclosed in the new patent case No. M277542 of China, which mainly uses a non-slip mat (slip rubber ring) with a T-shaped cross section and a Forming a receiving groove formed in the top end edge of the open end of the transparent cover, and forming an annular structure at the bottom of the anti-slip pad (anti-slip rubber ring) in the receiving groove to achieve the purpose of positioning the anti-slip pad (anti-slip rubber ring) . Although the 542 case can improve the lack of the point-like fixing method of the aforementioned 141 case, it is not easy to assemble. The reason is that when the user sequentially inserts the bottom of the anti-slip mat (anti-slip rubber ring) into the accommodating groove, it is necessary to simultaneously extend the tangential line to pull the anti-slip mat (anti-slip rubber ring) to force the non-slip mat (anti-slip rubber ring) to extend its The reason for the length is that in order to have a better bonding strength between the anti-slip mat (anti-slip rubber ring) and the transparent cover, the width of the bottom portion of the anti-slip mat (anti-slip rubber ring) is slightly wider than in the free state. The width of the dust collecting cover receiving groove, if the sectional area of the non-slip mat (anti-slip rubber ring) is not stretched and reduced, the anti-slip mat (anti-slip rubber ring) should be relatively integrated into the receiving groove. Difficult, so the assembly personnel usually pull the apron extension line (slip rubber apron) to force the non-slip mat (anti-slip rubber ring) to extend its length and reduce the cross-sectional area, making it installed and not installed. The anti-slip mat (anti-slip rubber ring) has different tensions (the tension of the installed part is high), so that the remaining length of the anti-slip mat (anti-slip rubber ring) is much larger than the remaining space of the accommodating groove when assembled to the rear stage. It is necessary to re-adjust the overall tension of the non-slip mat (anti-slip rubber ring). To complete the installation of the anti-slip mat (anti-skid rubber ring); in addition, when the dust cover is slightly slipped, the side pull force is generated on the anti-slip mat (anti-slip rubber ring), and the lateral pull force is matched with the anti-slip mat ( Anti-slip rubber ring) The tension generated by the installation itself, because the tension during extension will reduce the width of the bottom of the apron, resulting in loss of tightness with the receiving groove, which may result in a partial anti-slip mat (anti-slip rubber ring). The accommodating groove is pulled out, and even the anti-slip mat (anti-slip rubber ring) is detached, so the 542 case still has room for improvement.

Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop an innovative structure that is more ideal and practical, is expected by users, and is also related to the industry's efforts to develop breakthrough goals and directions.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After the detailed design and careful evaluation of the above objectives, the creator will have a practical and practical creation.

The main purpose of this creation is to provide a dust collecting structure, and the technical problem to be solved is to make an innovative breakthrough in how to develop a new type of rotary saw dust collecting structure type that is more ideal and practical.

The technical feature of the present invention is mainly that the rotary saw dust collecting cover comprises a transparent cover and an anti-slip rubber ring mounted on the transparent cover; wherein: the transparent cover has a closed end And an open end; the closed end of the transparent cover is formed with a plurality of radial slots, and a center of the closed end is formed with a through hole and a bearing is mounted, wherein the bearing and the perforation are identical to each other; The end edge of the open end of the transparent cover is provided with a flange, and the anti-slip rubber ring is mounted on the flange provided on the open end of the transparent cover by the flange; and the anti-slip rubber An annular buckle edge is defined in the outer periphery of the ring, and an annular card slot is defined between the buckle edge and the anti-slip rubber ring for receiving the flange of the transparent cover.

With this innovative and unique design, the present invention can be coated with the flange of the transparent cover with the flange of the anti-slip rubber ring to cover the flange of the transparent cover, and the radial shape. All the tanks are provided to achieve practical advancement and better industrial economy (utilization) benefits such as simplified assembly, ensuring machining accuracy and safety during the operation of the rotary saw, and prolonging the service life of the transparent casing.

Please refer to Figures 1, 2, 3, 4, and 5 for a preferred embodiment of the present invention. However, these embodiments are for illustrative purposes only and are not applicable to patent applications. Structural limitations. The rotary saw dust cover includes a transparent cover 10 and a non-slip rubber ring 20 mounted on the transparent cover 10. The transparent cover 10 has a closed end and an open end, and the anti-slip rubber The ring 20 is an elastic structural body elastically stretchable to change its circumference, and is disposed at an end edge of the open end of the transparent cover 10. When the rotary saw dust cover is drilled with a rotary hole saw 30 to drill a circular hole, the transparent cover 10 provides a dust collecting function, and the non-slip rubber ring 20 is closely attached to the processing surface of the workpiece 40, thereby improving The machining stability of the rotary hole saw 30 in the operation and the purpose of improving the precision of the drilling hole.

The closed end of the transparent casing 10 is formed with a plurality of radial cavities 11, and a center of the closed end is formed with a perforation (not labeled) and a bearing 13 is mounted, wherein the bearing 13 and the perforation are identical correspond. The end edge of the open end of the transparent cover 10 is provided with a flange 14 , and the anti-slip rubber ring 20 is mounted on the flange of the open end of the transparent cover 10 so as to cover the flange 14 . 14. In a preferred embodiment of the present invention, the flange 14 extends radially outwardly from the open end edge of the transparent casing 10. The flange 14 defines a ring groove 15 corresponding to the end surface of the anti-slip rubber ring 20.

An annular buckle edge 21 is defined in the outer periphery of the non-slip rubber ring 20, and an annular card slot 22 is defined between the buckle edge 21 and the anti-slip rubber ring 20. The card slot 22 is for receiving the The flange 14 of the transparent casing 10, and the buckle edge 21 is wrapped around the surface of the flange 14; see the second and sixth figures, in order to make the non-slip rubber ring 20 and the transparent casing 10 In a preferred embodiment of the present invention, the outer diameter d1 of the flange 14 is greater than the inner diameter d2 of the card slot 22; and the flange 14 is covered by the enlarged snap edge 21 The diameter d3 of the circle defined by the free end of the buckle edge 21 is smaller than the inner diameter d2 of the card slot 22. The non-slip rubber ring 20 is further provided with an annular rib 23 corresponding to the end surface of the flange 14, and the anti-slip rubber ring 20 is formed with an annular groove 24 on one side of the flange 14 of the transparent cover 10, wherein the annular rib 23 is The annular rib 23 is accommodated in the annular groove 15 and the width of the annular rib 23 is not greater than the width of the slot 22, thereby improving the bonding strength between the anti-slip rubber ring 20 and the transparent cover 10.

With the above-mentioned structural composition design, the use situation of the present creation is explained as follows: When the anti-slip rubber ring 20 is to be set in the transparent cover 10, the buckle edge 21 of the non-slip rubber ring 20 is first partially hooked on The flange 14 is then sequentially wrapped on the outer side of the flange 14 while sequentially arranging the annular rib 23 in the annular groove 15; The non-slip rubber ring 20 is such that the non-slip rubber ring 20 is looped to the flange 14 by its own restoring force and covers the end surface of the flange 14.

This creation not only retains the advantages of the conventional rotary saw dust collecting cover, but also overcomes the various defects of the conventional rotary saw dust collecting cover by the above-mentioned structural combination, and the present invention is more detailed than the advantages of the conventional structure. As follows: 1. After the assembly of the anti-slip rubber ring 20 is completed, the flange 14 of the transparent cover 10 is covered by the annular snap edge 21, so that only the radial pull is performed during the assembly process. The anti-slip rubber ring 20 is extended, so during the assembly process, especially at the final stage of assembly, the length change (extension) of the anti-slip rubber ring 20 is rather limited, so the artificial anti-slip rubber ring 20 can be assembled during the process. Gradually, the flange 14 of the transparent casing 10 is gradually covered with an equal tension. 2. The anti-slip rubber ring 20 of the present invention covers the flange 14 of the transparent cover 10 by its annular snap edge 21, so that even in the process of drilling the rotary saw 30, even if there is an improper lateral direction The force acting, the snap edge 21 in the opposite direction of the lateral force will more tightly hook the flange 14 of the transparent cover 10, and even further provide the reverse force by the elastic force of the anti-slip rubber ring 20 itself, ensuring Machining accuracy when the hole saw 30 is operated. 3. The anti-slip rubber ring 20 of the present invention is formed with an annular groove 24 on one side of the flange 14, so that the present invention improves the gap between the anti-slip rubber ring 20 and the workpiece 40 when the circular hole is drilled with the rotary hole saw 30. Friction improves the safety of the rotary saw 30 during operation. 4. The cavity 11 formed in the closed end of the transparent cover 10 is mainly used to provide a function of accommodating the shavings during the drilling process. The groove 11 of the present invention is radially arranged by the center of the transparent cover 10, so that the diameter of the hole to be drilled is large or small, and the shavings generated during the drilling process can fall directly, or It is driven by the rotation of the hole saw 30 to fall into the radially disposed slots 11.

Efficacy Description: The "spinning hole dust collecting cover" disclosed in this creation mainly uses the innovative unique structural shape and technical features of the transparent cover and the anti-slip rubber ring to make the original structure of the creation [previous technology] In addition, the flange of the transparent cover can be covered by the flange of the anti-slip rubber ring to cover the flange of the transparent cover, and all the slots provided in the radial direction, thereby simplifying assembly and ensuring Practical advancement in machining accuracy and safety during the operation of the rotary hole saw and extending the service life of the transparent cover.

10‧‧‧Transparent cover 11‧‧‧Groove 13‧‧‧Bearing 14‧‧‧Flange 15‧‧‧ Ring groove 20‧‧‧Slip rubber ring 21‧‧‧Snap edge 22‧‧‧ card slot 23‧‧‧ annular ribs 24‧‧ ‧ ring groove 30‧‧ ‧ hole saw 40‧‧‧ workpiece d1‧‧‧ outer diameter d2‧‧ ‧ inner diameter d3‧‧ diameter

The first picture is a three-dimensional appearance of the combination of the creation and the hole saw. Fig. 2 is an exploded perspective view of the first row of Fig. 1, wherein the broken line portion is an imaginary line of the rotary saw. Figure 3 is a partial anatomical view of the Bureau of Creation. Figure 4 is a cross-sectional view of the present work in conjunction with a rotary hole saw. Fig. 5 is a partial enlarged view of Fig. 3 of the present creation. Figure 6 is a cross-sectional view of the non-slip rubber ring of the present invention.

10‧‧‧Transparent cover

11‧‧‧ 容容

13‧‧‧ Bearing

30‧‧‧Rotary hole saw

40‧‧‧Workpiece

Claims (10)

The utility model relates to a rotary saw dust collecting cover, which mainly comprises a transparent cover and an anti-slip rubber ring mounted on the transparent cover, wherein: the transparent cover has a closed end and an open end; the transparent cover The closed end of the shell is formed with a plurality of pockets, and a center of the closed end is formed with a perforation and a bearing is mounted, wherein the bearing and the perforation are mutually identical; the end edge of the open end of the transparent shell is ring-shaped a flange, and the non-slip rubber ring is attached to the flange provided on the open end of the transparent cover by covering the flange; and the non-slip rubber ring is elastically stretchable to change the elasticity of the circumference thereof The outer periphery of the anti-adhesive ring is provided with an annular buckle edge, and an annular card slot is defined between the buckle edge and the anti-slip rubber ring, and the card slot is for receiving the transparent cover The flange is wrapped around the surface of the flange. The rotary saw dust cover of claim 1, wherein the flange extends radially outward from an open end edge of the transparent cover. The rotary saw dust collecting cover according to claim 2, wherein the flange is formed with a ring groove corresponding to an end surface of the non-slip rubber ring. The rotary saw dust collecting cover according to the third aspect of the invention, wherein the anti-slip rubber ring is provided with an annular rib corresponding to the end surface of the flange, and the annular rib is received in the annular groove, thereby improving the anti-adhesive The bond strength between the ring and the transparent cover. The rotary saw dust collecting cover according to claim 1, 2, 3 or 4, wherein the non-slip rubber ring is formed with an annular groove on one side of the transparent cover flange; when the anti-slip rubber ring is attached to When the surface is machined, the annular groove improves the friction between the anti-slip rubber ring and the workpiece. The rotary saw dust cover of claim 2, 3 or 4, wherein the outer diameter of the flange is larger than the inner diameter of the groove, so that the anti-slip rubber ring and the transparent cover are Good bonding strength. The rotary saw dust cover of the fifth aspect of the invention, wherein the outer diameter of the flange is larger than the inner diameter of the groove, so that the anti-slip rubber ring and the transparent cover have better bonding strength. . The rotary saw dust cover of claim 2, 3 or 4, wherein the diameter of the circle defined by the free end of the buckle edge is smaller than the inner diameter of the card slot, thereby expanding the buckle edge Cover the area of the flange. The rotary saw dust cover of the fifth aspect of the invention, wherein the diameter of the circle defined by the free end of the buckle edge is smaller than the inner diameter of the slot, thereby expanding the buckle edge to cover the convex The area of the edge. The rotary saw dust cover of the sixth aspect of the invention, wherein the diameter of the circle defined by the free end of the buckle edge is smaller than the inner diameter of the slot, thereby expanding the buckle edge to cover the convex The area of the edge.