Structure of the automatic tape cutter/sticker

• US 4,792,375 A
• Filed: 03/09/1987
• Issued: 12/20/1988
• Est. Priority Date: 06/20/1985
• Status: Expired due to Fees

• Current Assignee: Shuh-Chin Lin
• Original Assignee: Shuh-Chin Lin
• Inventors: Lin, Shuh-Chin
• Primary Examiner(s): Simmons, David
• Assistant Examiner(s): AFTERGUT, JEFFRY H
• Application Number:
  US07/023,476
• Time in Patent Office: 652 Days
• Field of Search: 225/16, 225/47, 156/523, 156/527, 156/530, 156/574, 156/577, 156/510, 242/68.3, 242/68
• US Class Current: 156/510
• CPC Class Codes: B65H 35/0033 and affixing it to a surface B65H35/004 takes precedence
• CPC Class Codes: Y10T 156/12 Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
• CPC Class Codes: Y10T 156/1348 Work traversing type
• CPC Class Codes: Y10T 156/1378 Cutter actuated by or secured to bonding element
• CPC Class Codes: Y10T 156/1788 Work traversing type and/or means applying work to wall or static structure
• CPC Class Codes: Y10T 225/211 Manually operated feed-out mechanism

Abstract

An improved automatic tape cutter/sticker is disclosed. A first shell body has disposed thereon a compressible tube having a roll of tape disposed thereon so as to prohibit free wheeling of the tape. The first shell body is disposed within a second shell body having disposed therebetween a rotary cutting knife. Upon movement of the first shell body with respect to the second shell body, a rotary cutting knife is moved out of alignment so that the tape may be payed out. Upon removal of force from the first shell body, the rotary cutting knife rotates in the opposite direction thereby cutting the tape. Slots are provided in the first shell body to enable it to be quickly urged downwards while also allowing for closer presentation of the tape to an outlet slot in the second shell body.

Claims

1. An automatic tape cutter/sticker comprising a main shell body, a bottom body shell below the main shell body and to which the main shell body is pivoted, a rotary cutting knife rotatably supported in the bottom body shell;

an annular tube inside the main shell body the annular tube comprises four arc-shaped tube plates which are placed so as to together define the annular tube, and the annular tube having a central X-shaped fixing axis radially inside the annular tube;

the outer diameter of the tube defined by the four tube plates is slightly smaller than a diameter of a center hole inside a roll of tape to be placed on the tube;

the fixing axis having legs which define four concave portions equally spaced around the fixing axis and projecting from the main shell body above the main shell body, the four concave portions being in two pairs, with alternate concave portions being paired;

radially outward of the first pair of concave portions are respective first ones of the arc-shaped tube plates of a first height above the main shell body;

the first tube plates are of a material to provide an outward expansion force;

the tops of the first tube plates above the main shell body are provided with respective first flanges which extend radially outwardly from the fixing axis and which are at said first height above the main shell body that is selected to be used to fit-on a greater width tape;

radially outward of the second of the pairs of concave portions are respective second ones of the arc-shaped tube plates which are of a second height above the main shell body shorter than said first height and also are of a material to provide an outward expansion force;

the tops of the second tube plates above the main shell body are provided with respect second flanges, which extend radially outwardly from the fixing axis and which are at said second height above the main shell body that is selected to be used to fit on a narrower width tape.

2. An automatic tape cutter/sticker according to claim 1 wherein the cutting knife comprises a blade holder at the bottom body shell and the blade holder is rotatable in the shell body, the knife includes a cutting blade disposed in the blade holder and replaceably held therein.

4. An automatic tape cutter/sticker according to claim 2 further comprising a tape roller ramming cylinder rotatably mounted at said first shell body, the tape roller ramming cylinder guiding the tape through the tape outlet.

3. An automatic tape cutter/sticker, comprising;

a first shell body having a rear wall;

first guide means in said rear wall for guiding motion of said first shell body;

a first pivot support for said first shell body on said rear wall, around which said first shell body is pivotably moveable;

an annular tube inside the first shell body, the annular tube comprises four arc-shaped tube plates which are placed so as to together define the annular tube, and the annular tube having a central X-shaped fixing axis radially inside the annular tube;

the outer diameter of the tube defined by the four tube plates is slightly smaller than a diameter of a center hole inside a roll of tape to be placed on the tube;

the fixing axis having legs which define four concave portions around the fixing axis;

the four concave portions being in two pairs, with alternate concave portions being paired;

radially outward of the first pair of concave portions are respective first ones of the arc-shaped tube plates of a first height above the main shell body;

the first tube plates are of a material to provide an outward expansion force;

the tops of the first tube plates above the main shell body are provided with respective first flanges which extend radially outwardly from the fixing axis and which are at said first height above the shell body that is selected to be used to fit-on a greater width tape;

radially outward of the second of the pairs of concave portions are provided respect second ones of the arc-shaped tube plates which are of a second height above the main shell body shorter than said first height and also are of a material to provide an outward expansion force;

the tops of the second tube plates above the main shell body are provided with respective second flanges, which extend radially outwardly from the fixing axis and which are at said second height above the main shell body that is selected to be used to fit on a narrower width tape;

a second shell body, shaped and sized for receiving at least partially within it said first shell body;

a second rear wall in said second shell body;

second guide means on said second rear wall positioned for cooperating with said first guide means in said first rear wall for providing pivoting motion of said first shell body with respect to said second shell body, said second rear wall including a second pivot support positioned to be in alignment with the first pivot support on the first rear wall, and the first and second pivot support being in engagement for enabling the first shell body to pivotally move with respect to and in the second shell body at the first and second cooperating pivot supports;

a tape outlet from said second shell body for permitting tape, or the like, which is supported on the fixing axis to exit from the tube and the first shell body into the second shell body and to exit from the tape outlet from the second shell body;

a rotary cutting knife disposed between the first and second shell bodies and between the first and second rear walls, the rotary cutting knife having a center of rotation defined on the second rear wall and having a blade holder extending outwardly from the second rear wall and eccentric to the center of rotation of the rotary cutting knife;

a cutting blade disposed in the eccentric blade holder such that upon rotation of the rotary cutting knife, the blade holder and blade are rotated for cutting;

spring means for biasing the first shell body to pivot in an upward direction with respect to the second shell body; and

means on the first shell body for engaging the rotary cutting knife such that downward movement of the first shell body around the first and second pivot supports against the bias the spring means causes the means on the first shell body to engage the rotary cutting knife to rotate the cutting knife in a first direction which prepares the blade for cutting the tape, or the like, and such that return movement of the first shell body under the influence of the spring rotates the cutting knife to a position to cut the tape as the shell body is up-raised.