Racket frame

Abstract

A racket frame includes a handle and a head. The head includes a ring frame, a plurality of protruding structures arranged on the ring frame, and a plurality of resistance-reducing structures arranged on the ring frame. The ring frame forms a plurality of through holes. Each protruding structure has two flanges respectively located on the front and back sides of the through holes, and the flanges define a wide slot. Each resistance-reducing structure has two side walls respectively located on the front and back sides of the through holes, and the side walls define a narrow slot. The through holes allow the net to be directly arranged without using plastic nails. The design that the width of the narrow slot is smaller than the wide slot allows the side walls to closely adhere to the net segment, so that the wind resistance can be greatly reduced and the interference during the swing can be avoided.

Description

Technical Field

[0001] This utility model relates to a ball-related device, and more particularly to a racket frame for badminton or tennis. Background Technology

[0002] See Figure 1 A typical racket 1 includes a frame 12 surrounding a space 11, a grip 13 connecting the frame 12, and multiple net strings (not shown) threaded through the frame 12 to form a net within the space 11. Currently, a common method for threading the net strings is to insert multiple hollow plastic spikes 14 into the frame 12 and then pass the net strings through the spikes. These net strings form segments around the outside of the frame 12 between adjacent spikes. However, the outer ends of the plastic spikes 14 protrude beyond the frame 12, and the net strings also extend beyond the frame. These structures increase wind resistance and interfere with the racket's swing. Furthermore, the use of plastic spikes 14 not only increases material usage but also has negative environmental impacts, leaving room for improvement. Utility Model Content

[0003] The purpose of this invention is to provide a racket frame that can reduce wind resistance.

[0004] This utility model relates to a racket frame, comprising a handle and a racket head connected to the handle. The racket head includes a ring frame, a plurality of protruding structures spaced apart from each other on the ring frame, and a plurality of drag-reducing structures disposed on the ring frame and each located between two adjacent protruding structures. The ring frame has an inner circumferential surface surrounding the racket face space, and an outer circumferential surface opposite to and surrounding the inner circumferential surface. The ring frame forms a plurality of spaced-apart through holes, each extending from the outer circumferential surface to the inner circumferential surface to communicate with the racket face space. Each protruding structure... The structure has two flanges that protrude outward from the outer peripheral surface and are respectively located on the front and rear sides of several perforations. The flanges are spaced apart from each other to define slots located on the outer side of the corresponding perforations and communicating with the perforations. Each drag-reducing structure has two side shields that protrude outward from the outer peripheral surface and are respectively located on the front and rear sides of several perforations. The side shields are spaced apart from each other to define slots located on the outer side of the corresponding perforations and communicating with the perforations. Each slot communicates with at least one of the slots, and the width of the slot is smaller than that of the slot.

[0005] In the racket frame described in this utility model, the width of any slot in the racket head gradually decreases towards the end of the corresponding slot.

[0006] The racket frame of this utility model further includes at least one baffle covering the outer circumferential surface of the ring frame. The at least one baffle is disposed between two adjacent protruding structures that do not have the drag-reducing structure. The at least one baffle defines a plurality of segment grooves that are spaced apart from each other and do not connect with the slot and the narrow groove. Each segment groove is located outside two of the through holes and connects with the through holes. The width of the segment groove is smaller than that of the slot.

[0007] The racket frame of this utility model is characterized in that the diameter of the perforation in the racket head is 1.0 to 1.2 mm.

[0008] The racket frame of this utility model has a slot width of 1.0 to 1.2 mm in the racket head.

[0009] The racket frame of this utility model has a racket head with a line segment groove width of 1.0 to 1.2 mm.

[0010] The racket frame of this utility model has a handle that is integrally connected to the racket head and is made of carbon fiber.

[0011] The beneficial effects of this utility model are as follows: the perforation allows the network cable to be directly threaded through without the use of plastic nails, which not only reduces the number of parts but is also more environmentally friendly. The network cable segments located on the outer periphery are blocked by the corresponding two side shields. In terms of design, the drag-reducing structure can be provided at specific positions according to aerodynamics. By designing the width of the slot to be smaller than that of the slot, the side shields can fit closely against the network cable segments, which can significantly reduce wind resistance and avoid interference during swinging. Attached Figure Description

[0012] Figure 1 It's a 3D diagram illustrating a typical tennis racket;

[0013] Figure 2 This is a perspective view illustrating an embodiment of the racket frame of this utility model;

[0014] Figure 3 This is a side view, indicating... Figure 2 Side view pattern;

[0015] Figure 4 This is a top view, indicating... Figure 2 A bird's-eye view;

[0016] Figure 5 It's a bottom view, which explains... Figure 2 The upward-looking posture. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] See Figure 2 and Figure 3 An embodiment of the racket frame of this utility model includes a handle 2 and a racket head 3 integrally connected to the handle 2. In this embodiment, the handle 2 and the racket head 3 are both made of carbon fiber and integrally connected, but in actual manufacturing, other materials and connection methods can be used, and it is not limited to the above example. The racket head 3 includes a ring frame 31, four protruding structures 32 arranged at intervals on the ring frame 31, two drag-reducing structures 33 arranged on the ring frame 31, and two stops 34 covering the ring frame 31.

[0019] The ring frame 31 has an inner peripheral surface 312 surrounding a racket face space 311, and an outer peripheral surface 313 opposite to and surrounding the inner peripheral surface 312. The ring frame 31 forms a plurality of spaced-apart perforations 314, each extending from the outer peripheral surface 313 to the inner peripheral surface 312 to communicate with the racket face space 311. In this embodiment, the diameter of each perforation 314 is 1.0 to 1.2 mm. Each protruding structure 32 has two flanges 321 protruding outward from the outer peripheral surface 313 and located on the front and rear sides of several of the perforations 314, respectively. The flanges 321 are spaced apart from each other, defining a slot 322 located outside the corresponding perforation 314 and communicating with the perforation 314.

[0020] Each drag-reducing structure 33 is located between two adjacent protruding structures 32 and has two side shields 331 extending outward from the outer peripheral surface 313 and located on the front and rear sides of several perforations 314, respectively. Each side shield 331 has two corresponding flanges 321 connected to its two ends. The side shields 331 are spaced apart from each other to define a slot 332 located outside the corresponding perforation 314 and communicating with the perforation 314. Each slot 332 connects to the slots 322 of two adjacent protruding structures 32. The width of the slot 332 is less than the width of the slot 322 and approximately equal to the diameter of the perforation 314; the preferred width of the slot 332 is 1.0 to 1.2 mm. It should be noted that, to further reduce wind resistance, the width of any slot 322 connected to one end of the corresponding slot 332 gradually decreases towards the slot 332.

[0021] See Figure 3 , Figure 4 ,and Figure 5The two stops 34 are located at the top and bottom of the ring frame 31, respectively, with the bottom stop 34 connected to the handle 2. Each stop 34 is positioned between two adjacent protruding structures 32 that do not have the drag-reducing structure 33. Each stop 34 defines a plurality of spaced-apart line slots 341 that are not connected to the slots 322 and the narrow slots 332. Each line slot 341 corresponds to the remaining through holes 314 that are not located within the slots 322 and the narrow slots 332. Each line slot 341 is located outside two of the through holes 314 and is connected to the through holes 314. The width of the line slot 341 is less than the width of the slot 322 and approximately equal to the diameter of the through hole 314. The width of the line slot 341 is preferably 1.0 to 1.2 mm. When the network cable 4 is actually passed through the two through holes 314 corresponding to the segment groove 341, the segment of the network cable 4 located outside the outer peripheral surface 313 will be accommodated in the segment groove 341.

[0022] It should be noted that, depending on actual manufacturing needs, the present invention may omit the aforementioned baffle 34, and the number and position of the protruding structure 32, the drag-reducing structure 33, and the baffle 34 may also be adjusted according to aerodynamic requirements.

[0023] In summary, the perforation 314 allows the network cable 4 to be directly threaded through without the need for plastic nails, which not only reduces the number of components but is also more environmentally friendly. The segment of the network cable 4 located outside the outer peripheral surface 313 is blocked by the flange 321, the side shield 331, or the baffle 34. Furthermore, based on aerodynamics, the drag-reducing structure 33 can be provided at a specific location. By designing the width of the slot 332 to be smaller than the width of the slot 322 and approximately equal to the diameter of the perforation 314, the side shield 331 can fit tightly against the segment of the network cable 4. This significantly reduces wind resistance and avoids interference during swinging, thus effectively achieving the purpose of this utility model.

Claims

1. A racket frame, comprising a handle and a racket head connected to the handle; characterized in that: The racket head includes a ring frame, a plurality of protruding structures spaced apart from each other on the ring frame, and a plurality of drag-reducing structures disposed on the ring frame and each located between two adjacent protruding structures. The ring frame has an inner peripheral surface surrounding the racket face space and an outer peripheral surface opposite to and surrounding the inner peripheral surface. The ring frame forms a plurality of perforations spaced apart from each other and extending from the outer peripheral surface to the inner peripheral surface to communicate with the racket face space. Each protruding structure has two flanges protruding outward from the outer peripheral surface and located on the front and rear sides of a plurality of perforations respectively. The flanges are spaced apart from each other to define slots located outside the corresponding perforations and communicating with the perforations. Each drag-reducing structure has two side shields protruding outward from the outer peripheral surface and located on the front and rear sides of a plurality of perforations respectively. The side shields are spaced apart from each other to define slots located outside the corresponding perforations and communicating with the perforations. Each slot communicates with at least one of the slots, and the width of the slot is smaller than that of the slot.

2. A racket frame according to claim 1, characterised in that: The width of any slot in the racket head gradually decreases towards the end of the corresponding slot.

3. A racket frame according to claim 1, characterised in that: The racket head also includes at least one baffle covering the outer peripheral surface of the ring frame. The at least one baffle is disposed between two adjacent protruding structures that do not have the drag-reducing structure. The at least one baffle defines a plurality of line segment grooves that are spaced apart from each other and do not connect the slot and the slit. Each line segment groove is located outside two of the through holes and connects to the through holes. The width of the line segment groove is smaller than that of the slot.

4. A racket frame according to any one of claims 1 to 3, characterised in that: The diameter of the perforation in the racket head is 1.0 to 1.2 mm.

5. A racket frame according to claim 4, characterised in that: The width of the slot in the racket head is 1.0 to 1.2 mm.

6. A racket frame according to claim 3, characterised in that: The width of the groove in the racket head is 1.0 to 1.2 mm.

7. A racket frame according to claim 1, characterised in that: The handle is integrally connected to the racket head and is made of carbon fiber.

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