TWI899035B - Magnetic Curtain Track Fixing Hook - Google Patents

Abstract

The magnetic curtain track fixing hook of the present invention comprises: a suction base having a top surface, a bottom surface, and a side connecting the top and bottom surfaces, with a plurality of magnets and metal sheets disposed therein. The top surface is provided with a coupling portion, which is provided with a track holder. The bottom surface is provided with at least one gradually expanding inclined sidewall toward the top surface, so that the suction base can gradually expand in width along one axis from the bottom surface toward the top surface, reaching a maximum width. The maximum width of the suction base is greater than the width of the bottom surface.

Description

Magnetic Curtain Track Fixing Hook

The present invention relates to a device for installing and fixing curtain tracks, and in particular to a magnetic curtain track fixing hook.

Figures 1 to 3 show a typical commercially available magnetic curtain track fixing hook. The hook comprises a suction base 1, which is typically a rectangular parallelepiped and has a top 2, a bottom 3, and side edges 4 connecting the top and bottom surfaces. The base 1 houses a plurality of magnets, and a plurality of magnetically conductive iron sheets 5 are disposed on both sides of and between the magnet assembly. The top 2 of the base has a coupling portion 6, which houses a track holder 7 for securing the curtain track thereto. When in use, the bottom surface 3 of the magnetic curtain track fixing hook is adsorbed on a ferromagnetic metal surface that is sensitive to magnetism, such as a window frame or door panel, and the curtain track is then clamped on the track clamp 7.

While this structure is easy to install, it's difficult to remove. This is mainly because when the adsorption base 1 is attached to a ferromagnetic metal surface that can sense magnetism, the bottom surface 3 of the adsorption base will be completely flat against the surface. In addition, to prevent the curtain track from falling, the magnetic force F of the magnets generally used is relatively strong. In this case, we define the suction force of the magnet and the magnetic conductive iron sheet on the ferromagnetic metal _{surface as F1} + F2 + F3 + F4 _. At the same time _, the side edges 4 of the adsorption base are all vertical walls. Taking the direction of Figure 2 as an example, when the user removes the adsorption base 1, the adsorption base has no force application point and is difficult to grasp. In addition, the strong magnetic attraction of the bottom surface 3 is added. Therefore, as shown in the lower left corner of Figure 2, the adsorption base is removed by flipping it at the fulcrum O. A simple explanation and estimation of the resistance torque L2 of the previous product is made. Assuming that the distance between each magnetic iron sheet is D, the rough estimate of the magnetic attraction that can be generated by the bottom surface of the adsorption base from left to right at the fulcrum O is D*F1+2D*F2+3D*F3+4D*F4=L2. The force torque L1 that the user can apply to flip and remove the adsorption base must be greater than the resistance torque L2 generated by the bottom surface. Therefore, the adsorption base is not easy to remove unless with the help of tools.

The main purpose of the present invention is to provide a magnetic curtain track fixing hook with a simple structure, easy assembly and disassembly, and labor-saving.

To achieve the aforementioned primary objectives, the present invention provides a magnetic curtain track fixing hook comprising: a suction base having a top surface, a bottom surface, and a side connecting the top and bottom surfaces; the top surface is provided with a coupling portion, the coupling portion being provided with a track holder; and the suction base is provided with a plurality of magnets and iron sheets. The bottom surface is provided with at least one gradually expanding inclined sidewall toward the top surface, so that the suction base can gradually expand in width along one axis from the bottom surface toward the top surface, thereby gradually increasing in width along the axis from the bottom surface toward the top surface to have a maximum width, which is greater than the width of the bottom surface.

With the above structure, the magnetic curtain track fixing hook of the present invention is as convenient to use as the previous product, but when disassembling, a larger torque and a better gripping force point can be used to flip the adsorption base, thereby achieving the purpose of the present invention.

The applicant first clarifies that throughout this specification, including the embodiments described below and the claims in the patent application, directional terms are based on the directions in the drawings. Furthermore, in the embodiments and drawings described below, identical component numbers represent identical or similar components or structural features. Directions in this specification are based on the directions in the drawings for ease of description and are not intended to be limiting.

Please refer to Figures 4 to 8, which show the magnetic curtain track fixing hook of the present invention, including:

A suction base 10 has a top surface 11, a bottom surface 12, and a side 13 connecting the top and bottom surfaces. The top surface 11 has a joint 14, which has a track holder 15 on which the curtain track is mounted. The suction base 10 contains a plurality of magnets and iron sheets 16, which are exposed on the surface of the bottom surface 12. In this embodiment, the adsorption base 10 is a rectangular body having two long sides 131 and two short sides 132, but the present invention is not limited thereto. The adsorption base may also be a cylinder, a hexagonal prism, a triangular prism, or other shapes, and the distance between the outermost iron sheet and the long side is less than or equal to the distance that the iron sheet protrudes from the bottom surface.

The bottom surface 12 is provided with at least one gradually expanding inclined side wall 17 toward the top surface 11, so that the width of the adsorption base 10 in the axial direction can gradually expand from the bottom surface 12 toward the top surface 11, so that the width of the adsorption base 10 in the axial direction gradually increases and widens from the bottom surface 12 toward the top surface 11 to have a maximum width. The maximum width of the adsorption base 10 is greater than the width of the bottom surface 12. Taking the diagram of FIG. 8 as an example, the bottom surface is provided with an inclined side wall 17 at each end in the short axis direction, that is, at the two long sides 131 of the bottom surface 12, extending toward the top surface 11. Therefore, the bottom surface 12 has a width that gradually increases as the two inclined side walls 17 expand outward. The width of the bottom surface 12 is preferably less than or equal to the width of the track holder 15 in the same axial direction.

In this embodiment, the bottom surface is provided with a sloping sidewall 17 on each of the two long sides 131 and the two short sides 132, which gradually expand toward the top surface 11. However, this is not limiting. Alternatively, only the two long sides 131 may be provided with sloping sidewalls 17, while the two short sides 132 may not be provided with sloping sidewalls. However, if the adsorption base 10 is a cylinder, the sloping sidewall 17 will be an annular sloping sidewall. The sloping sidewall 17 may extend from the bottom surface 12 all the way to the top surface 11, forming a shape that is wide at the top and narrow at the bottom, or, as shown in this embodiment, may extend to a certain height and then stop expanding, instead connecting to the vertical sidewall 13. Each of the two long sides 131 of the adsorption base is provided with a recess 18 to provide a force point for the user to apply when turning the adsorption base.

With the structure of the present invention, the installation and use of the suction base 10 is identical to previous products. The base utilizes the magnetic force of the base 's magnets to secure it to its intended location, creating a constant suction force of F1 ₊ F2 + F3 + F4 . However, to remove the base, the user can utilize the recessed portions 18 on _{the two} long sides of the base as grip points to _flip it over. Please refer to Figure 8, which illustrates the direction of the diagram. When the user holds the recess 18 and similarly rotates the adsorption base counterclockwise with the lower left corner of the adsorption base as the fulcrum O, assuming the same rough calculation method, because the bottom surface of the present invention is reduced, the distance between the outermost iron sheet and the long side will be very small, which can be regarded as the fulcrum O at the position F1. Therefore, the resistance torque generated by the bottom surface of the present invention from left to right is D*F2+2D*F3+3D*F4=L4, which is significantly smaller than the resistance torque generated by previous products.

The user's force creates a turning torque L3, which is countered by a resistance torque L4 on the suction base due to the magnetic attraction. However, from a structural perspective, it is obvious that the length of the turning torque L3 is much greater than the length of the suction torque L4. According to the principle of a lever, the greater the torque, the less effort is required. In addition, the resistance torque created by the present invention is already smaller than that of previous products. Therefore, the user can easily flip the suction base, so that the bottom surface of the suction base is no longer attached to the surface, achieving the purpose of being able to remove the suction base with little effort.

1: Adsorption base 2: Top 3: Bottom 4: Side 5: Magnetic iron sheet 6: Joint 7: Track holder 10: Adsorption base 11: Top 12: Bottom 13: Side 131: Long side 132: Short side 14: Joint 15: Track holder 16: Iron sheet 17: Inclined sidewall 18: Recess

Figure 1 is a perspective view of a previous product. Figure 2 is a front view of the previous product. Figure 3 is a perspective view of the previous product from another angle. Figure 4 is a schematic perspective view of the present invention. Figure 5 is a schematic perspective view of the present invention from another angle. Figure 6 is an exploded schematic view of the suction base and track holder of the present invention. Figure 7 is a side view of the present invention. Figure 8 is a front view of the present invention.

10: Adsorption seat

11: Top

12: Bottom surface

13: Side

131: Long side

132: Short Sides

14: Junction

15: Track booth

17: Oblique side wall

18: concave part

Claims (10)

A magnetic curtain track fixing hook includes: a suction base having a top surface, a bottom surface, and a side connecting the top and bottom surfaces; the top surface is provided with a coupling portion, the coupling portion being provided with a track holder; the suction base is provided with a plurality of magnets and iron sheets; the bottom surface is provided with a gradually expanding inclined side wall toward the top surface, so that the width of the suction base in one axis can gradually expand from the bottom surface toward the top surface, so that the width of the suction base in the one axis gradually increases from the bottom surface toward the top surface to have a maximum width, and the maximum width of the suction base is greater than the width of the bottom surface. A magnetic curtain track fixing hook as described in claim 1, wherein the width of the bottom surface is less than or equal to the width of the track holder in the same axial direction. The magnetic curtain track fixing hook as described in claim 1, wherein the adsorption base is a rectangular body having two long sides and two short sides. As described in claim 3, the magnetic curtain track fixing hook, wherein the bottom surface is provided with an inclined side wall on each of the two long sides, gradually expanding toward the top surface. As described in claim 4, the magnetic curtain track fixing hook, wherein the inclined side wall extends to a certain height and no longer expands outward but is connected to the side. As described in claim 5, the magnetic curtain track fixing hook has a recess on each of the two long sides of the adsorption base. As described in claim 3, the magnetic curtain track fixing hook, wherein the bottom surface is provided with an inclined side wall on each of the two short sides, gradually expanding toward the top surface. A magnetic curtain track fixing hook as described in claim 7, wherein the inclined side wall no longer expands outward and connects to the side after extending to a certain height. A magnetic curtain track fixing hook as described in claim 1, wherein the inclined side wall no longer expands outward and connects to the side after extending to a certain height. A magnetic curtain track fixing hook as described in claim 2, wherein the distance between the outermost iron sheet of the bottom surface and the long side is less than or equal to the distance that the iron sheet protrudes from the bottom surface.