Adhesive tape roll convenient to tear
By designing a detachable support ring and outer ring structure on the tape roll, and a cutting knife is installed on the support ring, the tape is cut without tools, solving the problem of difficult to cut the tape, improving the convenience of use and ensuring safety.
Patent Information
- Application Number
- CN202421785395.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-07-26
AI Technical Summary
Existing tapes are difficult to cut without suitable tools and are inconvenient to use.
A roll of tear tape is designed, including a removable support ring and an outer ring, with a cutting knife and a receiving groove on the support ring and a receiving groove on the outer ring, which can be removed from the outer ring and used for cutting the tape.
Without carrying a cutting tool, the tape can be easily cut, which improves the convenience of use, and avoids the safety hazards of the cutting knife exposed when not in use.
Smart Images
Figure CN223201380U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of adhesive tapes, in particular to a tear-off adhesive tape roll. Background Art
[0002] Adhesive tape consists of two parts: a backing material and an adhesive. There are many types of tape, including single-sided and double-sided tapes. Adhesive tapes are made with a variety of adhesive materials, including acrylic and silicone. Adhesive tape is typically wound onto a core, forming a roll. To use, the tape is torn from the core. Once the tape is pulled to the desired length, the tape is cut and used for the desired bonding operation.
[0003] However, the tape itself has a certain strength. When using it, it is difficult to cut it without suitable tools, which is inconvenient. Based on this, the utility model provides a tear-off tape roll, which has its own cutting structure, so that the tape can be easily cut without carrying cutting tools, thereby improving its convenience of use. Utility Model Content
[0004] Based on this, it is necessary to provide a tear-off tape roll, including a tube core and a tape wound on the tube core, the tube core including a cylindrical support ring and a cylindrical outer ring detachably mounted on the support ring, the tape wound on the outer side wall of the outer ring; a section for cutting the support ring is formed on the support ring, and the end faces of the two ends of the support ring located at the section form a first abutment surface and a second abutment surface, the first abutment surface and the second abutment surface are in contact with each other, a cutting knife is fixedly arranged on the first abutment surface, and a receiving groove for accommodating the cutting knife is provided on the second abutment surface, and the part of the cutting knife extending out of the first abutment surface is located in the receiving groove.
[0005] In the present invention, the support ring and the outer ring are detachably mounted together. When the tape roll is used for bonding, the support ring can be removed from the outer ring, and the cutter on the support ring can be used to cut the tape torn from the tape roll. That is, the present invention can cut the tape by itself without carrying cutting tools, greatly improving the convenience of use. The support ring and the outer ring can be detachably connected to each other in a tight fit.
[0006] In the present invention, when using the cutting knife on the support ring to cut the tape, the support ring needs to be opened so that the first and second abutting surfaces of the support ring are separated from each other, and the cutting knife is pulled out of the receiving groove of the support ring. When the support ring is not in use, the cutting knife is stored in the receiving groove, which can avoid the safety hazard caused by the cutting knife being exposed.
[0007] Furthermore, the cross section of the support ring is arranged along its radial direction, the cutting knife is arranged perpendicular to the axis of the support ring, and the blade of the cutting knife is located at the end of the cutting knife away from the axis of the support ring.
[0008] In the present invention, the blade of the cutter is located at the end away from the axis of the support ring, that is, the blade of the cutter faces the outside of the support ring. When cutting, the contact between the blade of the cutter and the tape can be facilitated, thereby ensuring that the cutting process of the cutter has a certain convenience and is easy to use.
[0009] Furthermore, a limiting rod is fixedly provided at one end of the cutting knife away from the first abutting surface, the limiting rod is arranged along the radial direction of the support ring, and both ends of the limiting rod extend out of the edge of the cutting knife, and a retaining ring for blocking the limiting rod is provided at the opening of the accommodating groove corresponding to the limiting rod.
[0010] In the present invention, the limit rod is located in the accommodating groove, and the length of the limit rod is greater than the width of the inner opening of the retaining ring. When the limit rod moves with the cutting knife, the limit rod will be blocked by the retaining ring. Therefore, when the support ring is opened, the limit rod cannot leave the accommodating groove, and the cutting knife can be restricted between the first abutting surface and the second abutting surface, which can effectively improve the safety of the cutting knife. The width that can be opened when the support ring is opened is determined by the distance between the limit rod and the first abutting surface. Preferably, when the support ring is opened, the maximum distance between the first abutting surface and the second abutting surface does not exceed 0.5 cm to prevent fingers from falling between the first abutting surface and the second abutting surface.
[0011] Furthermore, the blade of the cutting knife is provided with a V-shaped cutting edge.
[0012] In the present invention, the design of the V-shaped blade allows the cutting force to be concentrated on a small area. Compared with a straight blade, the two inclined surfaces of the V-shape will guide the applied force to the apex, making the pressure on the cutting point greater, making it easier to penetrate and cut the material, thereby further improving the cutting convenience of the cutting knife.
[0013] In addition, for tape materials that are difficult to cut, when using the V-shaped blade to cut the tape, the support ring can be pinched so that the second abutting surface pushes the tape and presses the tape toward the blade of the cutter, so that the cutting process of the cutter for the tape is similar to the cutting process of scissors, thereby smoothly cutting tape materials that are difficult to cut.
[0014] Furthermore, a spring piece is embedded in the support ring, and the spring piece is in a bent state along the circumferential direction of the support ring.
[0015] In the present invention, the spring embedded in the support ring is in a bent shape and has a tendency to return to a straight state. Therefore, after the support ring is taken out from the outer ring, the support ring will automatically open, which can eliminate the need for manual opening operation, and can further improve its convenience of use. At the same time, as recorded above, when the tape is cut using the V-shaped blade by pinching the support ring, the support ring can automatically reset, thereby effectively improving the convenience of the cutting process.
[0016] Furthermore, the outer side wall of the support ring and the inner side wall of the outer ring are provided with external threads and internal threads that match each other.
[0017] In the present invention, the support ring is detachably mounted in the outer ring through a threaded connection structure formed by an external screw thread on its outer side wall and an internal thread on the outer ring, thereby achieving a detachable connection between the support ring and the outer ring.
[0018] Furthermore, a hemispherical protrusion is provided on the first abutting surface, and a hemispherical recess is formed on the second abutting surface corresponding to the protrusion, and the protrusion is embedded in the recess and fits the inner surface of the recess.
[0019] In the present invention, the protrusion is embedded in the recess to play a positioning role for the first abutting surface and the second abutting surface. When the first abutting surface and the second abutting surface abut, the support ring can maintain a cylindrical shape, thereby ensuring that the external thread on the support ring can smoothly cooperate with the internal thread of the outer ring, thereby facilitating the support ring to be installed back into the outer ring.
[0020] Furthermore, a retaining ring is provided on one end of the inner side wall of the outer ring along its axial direction, and an annular recess matching the retaining ring is provided at one end of the support ring along its axial direction, and the retaining ring is embedded in the annular recess.
[0021] In the utility model, the retaining ring on the outer ring is used to block and position the support area. When the support ring is screwed into the outer ring, the retaining ring abutting against the annular recess not only plays a positioning role for the support ring, but also provides a pre-tightening force for the threaded connection structure between the support ring and the outer ring, thereby making the threaded connection structure between the support ring and the outer ring tighter.
[0022] The principle and effect of the present invention are further described below in combination with the above technical solutions and the accompanying drawings:
[0023] In the utility model, the support ring and the outer ring are detachably mounted together. When the tape roll is used for bonding, the support ring can be removed from the outer ring, and the cutting knife on the support ring can be used to cut the tape torn off from the tape roll. That is, the utility model can cut the tape by itself without carrying cutting tools, which greatly improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic structural diagram of the core of the embodiment of the present utility model;
[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the core along the radial direction of the embodiment of the utility model;
[0026] Figure 3 for Figure 2 A partial enlarged view of
[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the support ring when it is opened according to the embodiment of the utility model. Figure 1 ;
[0028] Figure 5 for Figure 4 A partial enlarged view of
[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the support ring when it is opened according to the embodiment of the utility model. Figure 2 ;
[0030] Figure 7 for Figure 6 A partial enlarged view of
[0031] Figure 8 This is a schematic diagram of the cross-sectional structure of the barrel core along its axial direction according to an embodiment of the present utility model.
[0032] Reference numerals
[0033] 1-outer ring, 11-retaining ring, 2-support ring, 21-section, 22-accommodating groove, 221-retaining ring, 23-first abutting surface, 24-second abutting surface, 3-spring, 4-cutting knife, 41-blade, 411-V-shaped cutting edge, 42-limiting rod. DETAILED DESCRIPTION
[0034] To facilitate understanding by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments:
[0035] like Figure 1-8, a tear-off tape roll comprises a tube core and a tape wound on the tube core, the tube core comprising a cylindrical support ring 2 and a cylindrical outer ring 1 detachably mounted on the support ring 2, the tape wound around the outer wall of the outer ring 1; a section 21 for cutting the support ring 2 is formed on the support ring 2, and the end surfaces of the two ends of the support ring 2 located at the section 21 form a first abutting surface 23 and a second abutting surface 24, the first abutting surface 23 and the second abutting surface 24 are in contact with each other, a cutting knife 4 is fixedly arranged on the first abutting surface 23, and a receiving groove 22 for accommodating the cutting knife 4 is opened on the second abutting surface 24, and the part of the cutting knife 4 extending out of the first abutting surface 23 is located in the receiving groove 22.
[0036] In the present invention, the support ring 2 and the outer ring 1 are detachably mounted together. When using the tape roll for bonding, the support ring 2 can be removed from the outer ring 1, and the cutter 4 on the support ring 2 can be used to cut the tape torn from the tape roll. In other words, the present invention can cut the tape by itself without carrying cutting tools, greatly improving the convenience of use. The support ring 2 and the outer ring 1 can be detachably connected to each other in a tight fit.
[0037] In the present invention, when using the cutting blade 4 on the support ring 2 to cut the tape, the support ring 2 needs to be opened so that the first abutting surface 23 and the second abutting surface 24 of the support ring 2 are separated from each other, and the cutting blade 4 is pulled out of the receiving groove 22 of the support ring 2. When the support ring 2 is not in use, the cutting blade 4 is received in the receiving groove 22, thereby avoiding safety hazards caused by the cutting blade 4 being exposed.
[0038] In one embodiment, the cross section 21 of the support ring 2 is arranged along its radial direction, the cutting knife 4 is arranged perpendicular to the axis of the support ring 2, and the blade 41 of the cutting knife 4 is located at the end of the cutting knife 4 away from the axis of the support ring 2.
[0039] In this embodiment, the blade 41 of the cutting knife 4 is located at the end thereof away from the axis of the support ring 2, that is, the blade 41 of the cutting knife 4 is facing the outside of the support ring 2. When cutting, the contact between the blade 41 of the cutting knife 4 and the tape can be facilitated, thereby ensuring that the cutting process of the cutting knife 4 has a certain convenience, making it easy to use.
[0040] In one embodiment, a limiting rod 42 is fixedly provided at one end of the cutting knife 4 away from the first abutting surface 23, the limiting rod 42 is arranged along the radial direction of the support ring 2, and both ends of the limiting rod 42 extend out of the edge of the cutting knife 4, and a retaining ring 221 for blocking the limiting rod 42 is provided at the opening of the accommodating groove 22 corresponding to the limiting rod 42.
[0041] In this embodiment, the limiting rod 42 is located in the accommodating groove 22, and the length of the limiting rod 42 is greater than the width of the inner opening of the retaining ring 221. When the limiting rod 42 moves with the cutting knife 4, the limiting rod 42 will be blocked by the retaining ring 221. Therefore, when the support ring 2 is opened, the limiting rod 42 cannot leave the accommodating groove 22, and the cutting knife 4 can be restricted between the first abutting surface 23 and the second abutting surface 24, which can effectively improve the safety of the cutting knife 4. The width that the support ring 2 can be opened when opened is determined by the distance between the limiting rod 42 and the first abutting surface 23. Preferably, when the support ring 2 is opened, the maximum distance between the first abutting surface 23 and the second abutting surface does not exceed 0.5 cm to prevent fingers from falling between the first abutting surface 23 and the second abutting surface 24.
[0042] In one embodiment, the blade 41 of the cutting knife 4 is provided with a V-shaped cutting edge.
[0043] In this embodiment, the design of the V-shaped blade 411 allows the cutting force to be concentrated on a small area. Compared with a straight blade, the two inclined surfaces of the V-shape will guide the applied force to the apex, making the pressure on the cutting point greater, making it easier to penetrate and cut the material, thereby further improving the cutting convenience of the cutting knife 4.
[0044] In addition, for tape materials that are difficult to cut, when using the V-shaped cutting edge 411 to cut the tape, the support ring 2 can be pinched so that the second abutment surface 24 pushes the tape and presses the tape toward the cutting edge of the cutting knife 4, so that the cutting process of the cutting knife 4 for the tape is similar to the cutting process of scissors, thereby smoothly cutting tape materials that are difficult to cut.
[0045] In one embodiment, a spring piece 3 is embedded in the support ring 2 , and the spring piece 3 is in a bent state along the circumferential direction of the support ring 2 .
[0046] In this embodiment, the spring piece 3 embedded in the support ring 2 is in a bent shape and has a tendency to return to a straight state. Therefore, after the support ring 2 is taken out from the outer ring 1, the support ring 2 will automatically open, which can eliminate the need for manual opening operation, and can further improve its convenience of use. At the same time, as recorded above, when the tape is cut using the V-shaped blade 411 by pinching the support ring 2, the support ring 2 can automatically reset, thereby effectively improving the convenience of the cutting process.
[0047] In one embodiment, the outer wall of the support ring 2 and the inner wall of the outer ring 1 are provided with external threads and internal threads that match each other.
[0048] In this embodiment, the support ring 2 is detachably mounted in the outer ring 1 through a threaded connection structure formed by an external screw thread on its outer side wall and an internal thread on the outer ring 1 , thereby achieving a detachable connection between the support ring 2 and the outer ring 1 .
[0049] In one embodiment, a hemispherical protrusion is provided on the first abutting surface 23 , and a hemispherical recess is formed on the second abutting surface 24 corresponding to the protrusion, and the protrusion is embedded in the recess and fits the inner surface of the recess.
[0050] In this embodiment, the protrusion is embedded in the recess to play a positioning role for the first abutting surface 23 and the second abutting surface 24. When the first abutting surface 23 and the second abutting surface 24 abut, the support ring 2 can maintain a cylindrical shape, thereby ensuring that the external thread on the support ring 2 can smoothly cooperate with the internal thread of the outer ring 1, thereby facilitating the support ring 2 to be installed back into the outer ring 1.
[0051] In one embodiment, a retaining ring 11 is further provided on the inner side wall of the outer ring 1 along one end of its axial direction, and an annular recess matching the retaining ring 11 is provided at one end of the support ring 2 along its axial direction, and the retaining ring 11 is embedded in the annular recess.
[0052] In this embodiment, the retaining ring 11 on the outer ring 1 is used to block and position the support area. When the support ring 2 is screwed into the outer ring 1, the retaining ring 11 abutting against the annular recess not only plays a positioning role for the support ring 2, but also provides a pre-tightening force for the threaded connection structure between the support ring 2 and the outer ring 1, thereby making the threaded connection structure between the support ring 2 and the outer ring 1 tighter.
[0053] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.
Claims
1. A tear-off tape roll, comprising a core and a tape wound on the core, characterized in that: The core includes a cylindrical support ring and a cylindrical outer ring detachably mounted on the support ring, and the tape is wound around the outer wall of the outer ring; a section for cutting the support ring is formed on the support ring, and end faces of the two ends of the support ring located at the section form a first abutting surface and a second abutting surface, the first abutting surface and the second abutting surface fit each other, a cutting knife is fixedly arranged on the first abutting surface, and a receiving groove for accommodating the cutting knife is provided on the second abutting surface, and a portion of the cutting knife extending out of the first abutting surface is located in the receiving groove.
2. The tear-off tape roll according to claim 1, characterized in that: The cross section of the support ring is arranged along its radial direction, the cutting knife is arranged perpendicular to the axis of the support ring, and the blade of the cutting knife is located at the end of the cutting knife away from the axis of the support ring.
3. The tear-off tape roll according to claim 2, characterized in that: A limiting rod is fixedly provided at one end of the cutting knife away from the first abutting surface. The limiting rod is arranged along the radial direction of the support ring, and both ends of the limiting rod extend out of the edge of the cutting knife. A retaining ring for blocking the limiting rod is provided at the opening of the accommodating groove corresponding to the limiting rod.
4. The tear-off tape roll according to claim 3, characterized in that: The blade of the cutting knife is provided with a V-shaped cutting edge.
5. The tear-off tape roll according to claim 3 or 4, characterized in that: A spring piece is also embedded in the support ring, and the spring piece is in a bent state along the circumferential direction of the support ring.
6. The tear-off tape roll according to claim 5, characterized in that: The outer side wall of the support ring and the inner side wall of the outer ring are provided with external threads and internal threads that match each other.
7. The tear-off tape roll according to claim 6, characterized in that: A hemispherical protrusion is provided on the first abutting surface, and a hemispherical recess is formed on the second abutting surface corresponding to the protrusion. The protrusion is embedded in the recess and fits the inner surface of the recess.
8. The tear-off tape roll according to claim 7, characterized in that: A retaining ring is further provided on one end of the inner side wall of the outer ring along its axial direction, and an annular recess matching the retaining ring is opened at one end of the support ring along its axial direction, and the retaining ring is embedded in the annular recess.