Adhesive tape table

Abstract

An adhesive tape table comprises a shell base unit, a tool apron unit, an elastic piece and a limiting piece. The shell seat unit comprises a shell and a pair of guide parts. The tool apron unit comprises a positioning seat, a pivot and a blade, the positioning seat is provided with a pair of guide sliding parts and a top, the guide sliding parts and the guide parts are mutually nested, when the tool apron unit is in a swinging mode, the top swings between the first side edge and the second side edge, and the guide sliding parts slide relative to the guide parts, and when the tool apron unit is in a positioning mode, the top swings between the first side edge and the second side edge. The top portion is positioned relative to the housing. The elastic piece provides the top of the tool apron unit to keep the tendency of swinging towards the first side edge. The limiting piece enables the tool apron unit to be switched between the swing mode and the positioning mode. The operation mode can be adjusted according to the use requirement by using the overall configuration.

Description

Technical Field

[0001] This invention relates to a tape dispenser, and more particularly to a tape dispenser that enables switching between operating modes of tape folding and non-folding. Background Technology

[0002] A tape reversing table (Taiwan Patent No. I534065) includes a main body, a movable base, an elastic element, a blade, a swinging element, and an adjustment knob. The movable base is movable relative to the main body. The elastic element is disposed between the main body and the movable base. The blade is disposed at one end of the main body. The swinging element is disposed between the blade and the movable base and is pivotally connected to the movable base. Rotating the adjustment knob switches the swinging element between a reversing and non-reversing operation mode. In the reversing operation mode, when the tape is pulled out, the tape causes the movable base to move relative to the main body, and simultaneously causes the swinging element to pivot relative to the main body. After the tape is cut by the blade, the elastic force of the elastic element causes the movable base to move in the opposite direction relative to the main body, causing the swinging element to swing in the opposite direction, thus reversing the end of the tape.

[0003] In the reverse folding operation mode, the pulling force of this tape table must cause the moving seat to move relative to the main body. If the moving seat does not move smoothly, the reverse folding operation cannot be completed smoothly, thus the operation is not convenient.

[0004] Another type of tape cutter (Chinese Patent No. CN2680632Y) includes a cutting table, a rotatable cutting base, a blade, a lever, and an elastic body. Rotating the lever causes the cutting base to rotate, causing the end of the tape attached to the blade to bend into a reverse fold.

[0005] Although this type of tape table also has the function of generating a folded section, its structure is relatively complex and its operation is not very convenient. Summary of the Invention

[0006] The purpose of this invention is to provide a tape dispenser that can solve the shortcomings of existing ones.

[0007] The tape dispenser of the present invention includes a housing unit, a blade holder unit, an elastic element, and a limiting element. The housing unit includes a housing defining a chamber, and a pair of guide portions spaced apart from the housing. The housing has a first side edge and a second side edge opposite to the first side edge along a first axial direction. The blade holder unit is rotatably mounted inside the chamber. The blade holder unit includes a positioning seat, a pivot connected to the positioning seat and pivotally connected to the housing, and a blade mounted on the positioning seat. The positioning seat has a pair of spaced-apart guide portions and a top. The guide portions and the guide portions are complementary and nested within each other. The blade holder unit can switch between a swing mode and a positioning mode. In the swing mode, the top can swing between the first side edge and the second side edge, and the guide portions slide relative to the guide portions. In the positioning mode, the top remains close to the second side edge and is positioned relative to the housing. The elastic element connects the housing and the positioning seat, and its elasticity provides a tendency for the top of the blade holder unit to swing towards the first side edge. The limiting member can be adjusted and installed on the housing, and allows the tool holder unit to switch between the swing mode and the positioning mode.

[0008] The tape table of the present invention has a guide portion of the housing unit in the shape of an elongated groove, each guide portion having a first arc segment, and a guide portion of the positioning seat in the shape of a cylinder.

[0009] The tape stage of the present invention further includes a guide portion of the housing unit having a second arc segment that connects to the first arc segment. The first arc segment is close to the second side edge, and the radius of curvature of the second arc segment is greater than that of the first arc segment. The second arc segment extends from the first arc segment toward the first side edge.

[0010] The tape table of the present invention has a housing unit having a bottom wall, an inner side wall connected to the bottom wall, an outer side wall opposite to the inner side wall along a first axial direction, a first side wall connected to the bottom wall, the inner side wall and the outer side wall, and a second side wall opposite to the first side wall along a second axial direction perpendicular to the first axial direction. The guide portion is respectively disposed on the first side wall and the second side wall. The first side wall has a guide groove extending along a third axial direction perpendicular to the first axial direction and the second axial direction. The guide groove communicates with the corresponding guide portion. The limiting member has a stop block that can slide and is embedded in the guide groove. In the positioning mode, the stop block extends into the first arc segment of the corresponding guide portion.

[0011] The tape stage of the present invention has a positioning seat of the knife holder unit having an elongated hole that can be displaced relative to the pivot.

[0012] The tape table of the present invention has a second arc segment of the guide portion of the housing unit having an inner end connected to the first arc segment and an outer end opposite to the inner end, wherein the height of the outer end relative to the bottom wall is greater than the height of the inner end relative to the bottom wall.

[0013] The tape table of the present invention further includes a guide wheel that is axially mounted on the top of the positioning seat and can rotate relative to the positioning seat.

[0014] The tape table of the present invention has a guide wheel of the knife holder unit extending along the center line and having two straight tube sections spaced apart along the center line, two concave sections located inside the straight tube sections respectively, and a bulging section connected between the concave sections. The concave sections are concave relative to the bulging sections and the straight tube sections.

[0015] In the tape table of the present invention, the cross-sectional shape of the bulging section of the guide wheel of the knife holder unit parallel to the center line is a convex spherical surface, and the cross-sectional shape of each concave section parallel to the center line is a conical surface. The outer diameter of the straight tube section is substantially equal to the maximum diameter of the bulging section, and the radial difference between the maximum diameter of the bulging section and the minimum diameter of the concave section is between 0.35 mm and 1.0 mm.

[0016] The tape table of the present invention further includes a base and a turntable axially mounted on the base. The housing unit is located on one side of the turntable along the first axial direction. The base has a sliding groove corresponding to the guide groove and in the shape of a stepped elongated hole. The limiting member also has a slider that is slidably embedded in the sliding groove and is in the shape of an elongated oval, and an actuating part connected to the slider. The outer end of the actuating part extends out of the base from the sliding groove.

[0017] The beneficial effects of this invention are as follows: operating the limiting member allows the tool holder unit to switch between the swing mode and the positioning mode, and in the swing mode, the guide slide relative to the guide part slides, enabling smooth swinging of the tool holder unit. Furthermore, the overall structure is simple and the operation is convenient. Attached Figure Description

[0018] Figure 1 This is a perspective view of an embodiment of the tape table of the present invention, illustrating a knife holder unit in an oscillating mode;

[0019] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0020] Figure 3 This is a partial exploded perspective view of this embodiment;

[0021] Figure 4 yes Figure 2 Partial composite sectional view;

[0022] Figure 5 This is a schematic diagram of the operation of folding the end of the tape back in this embodiment;

[0023] Figure 6 This is another perspective view of the embodiment, illustrating the tool holder unit in a positioning mode;

[0024] Figure 7 yes Figure 6 A magnified view of a portion of the image;

[0025] Figure 8 It should be Figure 7 Partial composite sectional view. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] See Figures 1 to 3 An embodiment of the tape table of the present invention includes a base 10, a turntable 20, a housing unit 30, a knife holder unit 40, an elastic member 50, and a limiting member 60.

[0028] The base 10 is elongated and extends along the first axial direction X, and has a groove 11 in the shape of a stepped elongated hole.

[0029] The rotatable shaft of the turntable 20 is located on the base 10, and the turntable 20 can accommodate a roll of tape 1.

[0030] The housing unit 30 is located on one side of the turntable 20 along the first axial direction X. The housing unit 30 includes a housing 32 that defines a chamber 31, and a pair of guide portions 33 spaced apart from the housing 32. The housing 32 has a bottom wall 321, an inner side wall 322 connected to the bottom wall 321, an outer side wall 323 opposite to the inner side wall 322 along the first axial direction X, a first side wall 324 connected to the bottom wall 321, the inner side wall 322, and the outer side wall 323, and a second side wall 325 opposite to the first side wall 324 along a second axial direction Y perpendicular to the first axial direction X. The inner side wall 322 has a first side edge 326. The outer side wall 323 has a second side edge 327 opposite to the first side edge 326 along the first axial direction X. The first side wall 324 and the second side wall 325 each have a pivot hole 328. The first sidewall 324 also has a guide groove 329 extending along a third axis Z perpendicular to the first axis X and the second axis Y. The guide portions 33 are respectively disposed on the first sidewall 324 and the second sidewall 325. Each guide portion 33 is elongated and has a first arc segment 331 and a second arc segment 332 connecting the first arc segment 331. The guide groove 329 connects to the first arc segment 331 of the corresponding guide portion 33. The radius of curvature of the second arc segment 332 is greater than the radius of curvature of the first arc segment 331. The first arc segment 331 approaches the second side edge 327, and the second arc segment 332 extends from the first arc segment 331 toward the first side edge 326. The second arc segment 332 has an inner end 333 connected to the first arc segment 331, and an outer end 334 opposite to the inner end 333. The height of the outer end 334 relative to the bottom wall 321 is greater than the height of the inner end 333 relative to the bottom wall 321.

[0031] The tool holder unit 40 is rotatably mounted inside the chamber 31. The tool holder unit 40 includes a positioning seat 41, a pivot 42 connected to the positioning seat 41 and pivotally connected to the housing 32, a cutting blade 43 mounted on the positioning seat 41, and a guide wheel 44 axially mounted on the top 412 of the positioning seat 41 and rotatable relative to the positioning seat 41. The positioning seat 41 has a pair of spaced-apart guide slides 411, a top 412, an abutment 413 disposed on the top 412, and an elongated hole 414 through which the pivot 42 passes and is displaceable relative to the pivot 42. The guide slides 411 and the guide portion 33 are complementary and nested within each other. In this embodiment, the guide slides 411 are cylindrical and are disposed at both ends of the same support pin, which passes through the interior of the positioning seat 41. The guide wheel 44 extends along a centerline L1 and has two straight pipe sections 441 spaced apart along the centerline L1, two concave sections 442 located inside the straight pipe sections 441 respectively, and a bulging section 443 connecting the concave sections 442. The concave sections 442 are concave relative to the bulging section 443 and the straight pipe sections 441. The bulging section 443 has a convex spherical cross-section parallel to the centerline L1, and each concave section 442 has a conical cross-section parallel to the centerline L1. The outer diameter of the straight pipe section 441 is substantially equal to the maximum diameter of the bulging section 443, and the radial difference between the maximum diameter of the bulging section 443 and the minimum diameter of the concave section 442 is between 0.35 mm and 1.0 mm.

[0032] The elastic element 50 is connected between the housing 32 and the positioning seat 41. In this embodiment, the elastic element 50 is a tension spring, and its elastic force provides the top 412 of the tool holder unit 40 with a tendency to swing toward the first side edge 326.

[0033] The limiting member 60 is adjustablely mounted on the housing 32 and the base 10, and allows the tool holder unit 40 to be in a swing mode (see...). Figure 1 and Figure 2 ) and a positioning pattern (see Figure 6 and Figure 7 The positioning member 60 has a sliding, elongated slider 61 that is slidably embedded in the slide groove 11, an actuating part 62 connected to the slider 61, and a stop 63 connected to the slider 61 and slidably embedded in the guide groove 329. One outer end of the actuating part 62 protrudes from the slide groove 11 outside the base 10. In this positioning mode, the stop 63 extends into the first arc segment 331.

[0034] To further understand the effects of the combination of the components of this invention, the technical means employed, and the expected benefits, the following explanation will be provided, which will hopefully lead to a deeper and more specific understanding of this invention.

[0035] like Figure 1 and Figure 4 As shown, when the entire invention is assembled and the tool holder unit 40 is switched to the swing mode, the stop 63 of the limiting member 60 moves out from the first arc segment 331 of the corresponding guide part 33, and the stop 63 is located in the guide groove 329.

[0036] like Figure 5 As shown by the imaginary line (dotted line), when one end of the tape 1 is pulled out, the tension resists the elastic force of the elastic member 50, and the entire knife holder unit 40 will rotate around the axis L of the pivot hole 328 and toward the second side edge 327 (the elastic member 50 is stretched and contains a release force). At this time, a part of the tape 1 is stuck to the abutment part 413, and another part is stuck to the guide wheel 44. By utilizing the concave section 442 and the bulging section 443 of the guide wheel 44, the adhesion area between the middle part of the tape 1 and the guide wheel 44 can be made smaller.

[0037] Furthermore, after the tape 1 is cut by the blade 43, the blade holder unit 40 rotates in the opposite direction relative to the housing unit 30 using the release force of the elastic member 50, which creates a folded portion 101 at the end of the tape 1. In other words, in this swing mode, the top 412 of the blade holder unit 40 can swing between the first side edge 326 and the second side edge 327, and the guide slide 411 slides smoothly relative to the guide part 33. Moreover, by utilizing the design of the concave section 442 and the bulging section 443 of the guide wheel 44, the outer diameters of the front, middle, and rear points of the guide wheel 44 are substantially the same. The height difference of the outer diameters at different points provides support for the middle position of the tape 1. Furthermore, by utilizing the fact that the height of the outer end 334 of the second arc segment 332 relative to the bottom wall 321 is greater than the height of the inner end 333 relative to the bottom wall 321, the formation of the folded portion 101 can be made more stable.

[0038] For example Figures 6 to 8As shown, when the user moves the limiting member 60 and the stop 63 of the limiting member 60 moves into the first arc segment 331 of the corresponding guide part 33, the guide slide part 411 of the blade holder unit 40 is blocked by the stop 63 and will remain close to the second side edge 327. At this time, the blade holder unit 40 remains in the positioning mode. When one end of the tape 1 is pulled out, the tape 1 is only cut by the blade 43 and will not cause the blade holder unit 40 to rotate relative to the housing unit 30. That is to say, in the positioning mode, the top 412 of the blade holder unit 40 remains close to the second side edge 327 and is positioned relative to the housing 32. Therefore, by moving the limiting member 60 up and down, the user can switch the blade holder unit 40 between the positioning mode and the swing mode. The switching operation between the positioning mode and the swing mode is quite easy. Furthermore, in the swing mode, when the entire tool holder unit 40 rotates around the axis L of the pivot hole 328 and rotates between the first side edge 326 and the second side edge 327, the guide slide 411 also slides smoothly relative to the guide part 33, resulting in excellent ease of operation.

[0039] In summary, the tape dispenser of the present invention has a simple overall structure, is easy to manufacture and assemble, and can switch between different operating modes, thus achieving the purpose of the present invention.

Claims

1. A tape dispenser, comprising a housing unit, a blade holder unit, an elastic element, and a limiting element, characterized in that: The housing unit includes a housing that defines a chamber, and a pair of guide portions spaced apart from the housing. The housing has a first side edge and a second side edge opposite to the first side edge along a first axial direction. The blade holder unit is rotatably mounted inside the housing. The blade holder unit includes a positioning seat, a pivot connected to the positioning seat and pivotally connected to the housing, and a blade mounted on the positioning seat. The positioning seat has a pair of spaced-apart guide slides and a top. The guide slides and the guide slides are complementary and nested with each other. The blade holder unit can switch between a swing mode and a positioning mode. In the swing mode, the top can swing between the first side edge and the second side edge, and the guide slides relative to the guide slides. In the positioning mode, the top remains close to the second side edge and is positioned relative to the housing. The elastic element is connected between the housing and the positioning seat, and its elasticity provides a tendency for the top of the tool holder unit to swing toward the first side edge. The limiting member is adjustablely mounted on the housing and allows the tool holder unit to switch between the swing mode and the positioning mode.

2. The tape dispenser according to claim 1, characterized in that: The guide portion of the housing unit is in the shape of a long groove, and each guide portion has a first arc segment. The guide sliding portion of the positioning seat is cylindrical.

3. The tape dispenser according to claim 2, characterized in that: The guide portion of the housing unit also has a second arc segment that connects to the first arc segment. The first arc segment is close to the second side edge. The radius of curvature of the second arc segment is greater than that of the first arc segment. The second arc segment extends from the first arc segment toward the first side edge.

4. The tape dispenser according to claim 3, characterized in that: The housing of the housing unit has a bottom wall, an inner side wall connected to the bottom wall, an outer side wall opposite to the inner side wall along a first axial direction, a first side wall connected to the bottom wall, the inner side wall and the outer side wall, and a second side wall opposite to the first side wall along a second axial direction perpendicular to the first axial direction. The guide portion is respectively disposed on the first side wall and the second side wall. The first side wall has a guide groove extending along a third axial direction perpendicular to the first axial direction and the second axial direction. The guide groove communicates with the corresponding guide portion. The limiting member has a stop block that can slide and is embedded in the guide groove. When the tool holder unit is in the positioning mode, the stop block extends into the first arc segment of the corresponding guide portion.

5. The tape dispenser according to claim 4, characterized in that: The positioning seat of the tool holder unit has an elongated hole that can be displaced relative to the pivot.

6. The tape dispenser according to claim 4, characterized in that: The second arc segment of the guide portion of the housing unit has an inner end connected to the first arc segment and an outer end opposite to the inner end, the height of the outer end relative to the bottom wall being greater than the height of the inner end relative to the bottom wall.

7. The tape dispenser according to claim 1, characterized in that: The tool holder unit also includes a guide wheel that is mounted on the top of the positioning seat and can rotate relative to the positioning seat.

8. The tape dispenser according to claim 7, characterized in that: The guide wheel of the tool holder unit extends along the center line and has two straight tube sections spaced apart along the center line, two concave sections located inside the straight tube sections respectively, and a bulging section connected between the concave sections. The concave sections are concave relative to the bulging sections and the straight tube sections.

9. The tape dispenser according to claim 8, characterized in that: The bulging section of the guide wheel of the tool holder unit has a convex spherical cross-section parallel to the center line, and each concave section has a conical cross-section parallel to the center line. The outer diameter of the straight tube section is substantially equal to the maximum diameter of the bulging section, and the radial difference between the maximum diameter of the bulging section and the minimum diameter of the concave section is between 0.35 mm and 1.0 mm.

10. The tape dispenser according to claim 4, characterized in that: It also includes a base and a turntable axially mounted on the base. The housing unit is located on one side of the turntable along the first axial direction. The base has a sliding groove corresponding to the guide groove and in the shape of a stepped elongated hole. The limiting member also has a sliding, elongated sliding groove that is slidably embedded in the sliding groove. (BCPI-240181 Page 3 / 3) The block, and the lever connected to the slider, the outer end of the lever extending out of the base from the groove.

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