A closure mechanism includes a first elongate closure member having a series of regularly spaced features disposed along an entire length of the first elongate closure member. The series of regularly spaced features includes a plurality of vertically extending elongate features on an outer surface of the first closure member. The vertically extending elongate features are spaced apart along the entire length of the first closure member in alternating and repeating distances. A second elongate closure member includes a series of regularly spaced features disposed along an entire length of the second closure member and sealingly engages the first closure member. A slider interacts with (i) the series of regularly spaced features on the first elongate closure member to produce a first feedback at a first frequency, and (ii) the series of regularly spaced features on the second elongate closure member to produce a second feedback at a second frequency.

A closure mechanism includes a first elongate closure member having a series of regularly spaced features disposed along an entire length of the first elongate closure member. The series of regularly spaced features includes a plurality of vertically extending elongate features on an outer surface of the first closure member. The vertically extending elongate features are spaced apart along the entire length of the first closure member in alternating and repeating distances. A second elongate closure member includes a series of regularly spaced features disposed along an entire length of the second closure member and sealingly engages the first closure member. A slider interacts with (i) the series of regularly spaced features on the first elongate closure member to produce a first feedback at a first frequency, and (ii) the series of regularly spaced features on the second elongate closure member to produce a second feedback at a second frequency.

A male belt-shaped base having a male member with a short width, and a separation strip are heat-sealed to a film. A female belt-shaped base having a female member with a long width is heat-sealed at a predetermined position so that the male portion and the female portion are at engageable positions. The film is layered and suitably sealed to form a zipper-tape bag. The film and the separation strip are cut to form a cut portion at a non-bonded region in which the film of the zipper-tape bag is not bonded, thereby forming an unsealing tab. The unsealing tab can be easily formed by simply cutting the film.

A male belt-shaped base having a male member with a short width, and a separation strip are heat-sealed to a film. A female belt-shaped base having a female member with a long width is heat-sealed at a predetermined position so that the male portion and the female portion are at engageable positions. The film is layered and suitably sealed to form a zipper-tape bag. The film and the separation strip are cut to form a cut portion at a non-bonded region in which the film of the zipper-tape bag is not bonded, thereby forming an unsealing tab. The unsealing tab can be easily formed by simply cutting the film.

There is provided a zipper tape bonded to a bag body having a first surface and a second surface and including: a zipper tape body including a first base strip bonded to the first surface, a second base strip bonded to the first surface with a bonding portion, and engagement portions being mutually engageable and projecting from the first and second base strips, respectively; and a cutting strip provided in a region where the second base strip faces the first surface and does not face the first base strip. The zipper tape body is formed of a resin composition whose main component is a polyolefin resin. The cutting strip is formed of a resin composition whose main component is a polyolefin resin and includes a cutting strip body and a peelable layer layered on the cutting strip body and formed of a resin composition having peelability to a polyolefin resin.

There is provided a zipper tape bonded to a bag body having a first surface and a second surface and including: a zipper tape body including a first base strip bonded to the first surface, a second base strip bonded to the first surface with a bonding portion, and engagement portions being mutually engageable and projecting from the first and second base strips, respectively; and a cutting strip provided in a region where the second base strip faces the first surface and does not face the first base strip. The zipper tape body is formed of a resin composition whose main component is a polyolefin resin. The cutting strip is formed of a resin composition whose main component is a polyolefin resin and includes a cutting strip body and a peelable layer layered on the cutting strip body and formed of a resin composition having peelability to a polyolefin resin.

An interlocking means including a first interlocking member for which a male interlocking part is provided in a longitudinal direction of a band-shaped first base and a second interlocking member for which a female interlocking part is provided in a longitudinal direction of a band-shaped second base, and in which multiple sections whose heights are low are formed at the female interlocking part at intervals in a longitudinal direction of the female interlocking part, and the male interlocking part and the female interlocking part are interlocked in the low sections in the same manner as in the non-low sections; and a hag with an interlocking means in which the interlocking means is provided.

An interlocking means including a first interlocking member for which a male interlocking part is provided in a longitudinal direction of a band-shaped first base and a second interlocking member for which a female interlocking part is provided in a longitudinal direction of a band-shaped second base, and in which multiple sections whose heights are low are formed at the female interlocking part at intervals in a longitudinal direction of the female interlocking part, and the male interlocking part and the female interlocking part are interlocked in the low sections in the same manner as in the non-low sections; and a hag with an interlocking means in which the interlocking means is provided.

A boring machine comprises a forward section, a rear section, an articulation point, a parallel link mechanism, an input component, an articulation point position computer, and a jack controller. The parallel link mechanism includes a plurality of thrust jacks that change the position of the forward section with respect to the rear section. The articulation point position computer computes the position of the articulation point on the basis of the control inputs received by the input component, and the positions of the center line and center point of the rear section and the center point of the forward section. The jack controller controls the stroke amounts of the thrust jacks to produce movement corresponding to a curve generated from the positions of the center point of the rear section, the articulation point, and the center point of the forward section.

The present invention includes a reclosable bag having first and second walls and an open top defined by first and second elongate flexible fastener strips attached to the first and second walls, respectively, adjacent the top of the walls. One of the fastener strips has a profile portion forming at least one groove and the other fastener strip has a profile portion forming at least one rib with a portion of each rib received and retained in one of said grooves when the bag top is closed. Each of the fastener strips has a base connected to the respective wall, and each of the strips has an upper edge adjacent the upper edge of the other strip. Third and fourth fastener strips are located within the bag walls parallel to and below the first and second fastener strips. The third and fourth fattener strips have one or more pairs of ribs and grooves. An inverted slider is mounted on the second and third fastener strips within the bag and is movable in one direction longitudinally of the third and fourth fastener strips to progressively separate the one or more rib from the one or more grooves to open the bag: the slider is also being movable in the opposite direction to progressively return the one or more rib portion to a retained condition in the one or more groove to close the bag. A plow extends from the slider to the exterior of said bag above the top of said bag. The plow has a finger tab extending affixed thereto at the distal end thereof. The plow is constructed and arranged to selectively separate said first and second rib and groove and to move said slider within said bag to separate said third and fourth rib and groove when said plow is moved longitudinally along said fastener strips from a first end of said strips to a second end of said strips. The plow is also constructed and arranged to slide said slider longitudinally along the third and fourth fastener strips from said second end and back to said first end so as to interlock said third and fourth ribs and groves and seal said third and fourth fastener strips within said bag. Alternatively, the Claim 1 first and second fastener strips may be selectively sealed by pressing the outer walls of said bag together proximate said first and second fastener strips so as to longitudinally interlock said first and second fastener strips together.