JPH07503930A - Reclosable bag manufacturing method and device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Reclosable bag manufacturing method and device Technical field FIELD OF THE INVENTION This invention relates generally to packaging, and more particularly to storage bags that can be easily reclosed. The present invention relates to a method and apparatus for manufacturing a storage bag.

Background technology Efforts have long been underway to create storage bags that can be easily opened and then closed again. Ru. This effort has become the standard by which to judge the potential success of such storage bags. Ta. Consumers require that such bags be easily opened, reclosed, and then re-opened. Ru. From a manufacturer's perspective, the methods and equipment required to form a reclosable bag are The equipment is easily added to the production line, operates without any reduction in production speed, and It minimizes production costs and has the ability to be used on bags that require new seals. , must produce little or no waste material. Generally, this precedence Technological efforts have focused on creating either separate reclosable laces or integral structures that form the laces. I have made a bag that has this.

The following US patents are examples of separate reclosable drawstring bags:

3.311,288 (1967) Lemelson 3, 426.959 (1969 ) Lemelson 3.674.135 (1972) Simon 3, 779.139 (1973) White Melson patent tearing plastic or metal foils Disclose a package with a strip. Tear strips add strength This includes threads, lines, wires or welds. Separate the string from the bag and attach it to the bag. It is closed again by wrapping and twisting.

The Simon patent discloses a roll of separable bags. Perforation along the edge or top of the tea bag Remove sections of material as reclosable cords or tear strips by line □ can be used. The tear strip has one or more heat seams. or by a separate body such as a wire, deformable metal or other film briquette. Reinforced by applying reinforcing material.

White patent with lateral tear strip that can be removed from the edge of the bag Reveal the bag. Tie this tear strip in an overhead knot to re-tie the bag. can be closed.

Each of the reclosable lace structures described above accomplishes some of the criteria described above. Most of the bags are reused. Relatively easy to use when opening and closing. Twisted string wraps around to open the bag again. Easy to remove. Those tied with an overhead knot are tied with an overhead knot. Depending on how easy it is to solve, it may or may not be easy to open. But long These measures were found to be unacceptable. Because these are All of them have special construction or are designed to reduce production speed or reduce material and manufacturing costs. It requires very specialized equipment that increases unacceptably. For example, the White patent Easy to use in continuous form and filling processes as commonly used in the product industry and other industries Discloses forming the bag in a series of steps not applicable to the invention. White patents are special equipment required. The following patent describes an integral lace strip that is attached to the bag and left unattended. Disclose the packaging used.

3, 217.971 (1965) Spätz 1, 150.037 (1969 ) Prusbran (UK) 3, 480.198 (1969) Levkosvec Special Tear along the transverse tear line that ends inside the edge of the bag to form the laces. Open (to reveal the bag. A longitudinal tear line allows a portion of the reclosable string to be removed. Separable into two halves, a reclosable cord or strip is attached to each edge of the bag. Form two individual lacing strips. tie two strings together I can do it. Other examples include partially separating side strips formed along the edges of the bag. to form a single lace strip.

The Plus Plan patent allows the peripheral portion of the bag to separate from the main portion of the bag along the tear line. A similar structure is disclosed. However, the reclosing string does not separate completely from the bag. .

The Revco patent has a welded or heat-sealed, reinforced perimeter with a series of holes. discloses a similar structure that partially separates from the bag along a tear line configured to Ru. The tear ends at the edges, so the surrounding area remains physically attached to the bag. There is even.

Each of these structures either requires more material or requires dispensing the contents. Either prevent the bag from opening completely. Moreover, Revco patent requires an elaborate structure to form multiple holes, and in the middle and around the holes. There is a seal that keeps the new seal.

The following U.S. patent describes a bag in which a reclosable lace has an integral loop portion and a tail portion. Disclose.

3, 664.575 (1972) Lake 4, 549.657 (1985) Martin 4.609,107 (1986) Martin et al. 4.682,976 ( 1987) Martin et al. 4.787.517 (198B) Martin Lake patent According to It extends partially across to form the tail of the reclosing cord. Separated from the first seal Other transverse seals join layers of film to form loop sections.

This reclosing string can be separated from the bag and the tail is then wrapped around the bag. Then, tighten the bag when it is passed through the loop. However, this reclosing string A storage bag without a sticker is disclosed. This structure is placed in a bag with a new seal. Application of construction may increase material costs unacceptably.

The Martin patents, namely Nos. 4.549.657 and 4.787,517, A number of embodiments of easily opened and reclosable bags are disclosed. placed opposite The new sealing jaw forms a closing seal with a reclosing string and a new seal. Ru. Reclosing string can be removed from the bag without interfering with the new seal .

The bag is secured in the middle with an unsealed braai by wrapping the reclosing cord around the bag. It is closed again by extending one end through the formed loop. implementation In the example, the reclosable laces are made of material except at the middle section, which is offset to one end of the laces. proposed to be formed as a sealed braai, thereby forming a tail. Ru.

In each of the Lake and Martin patents, the loop portion has a seal. many Applications, especially those involving polyethylene-based film bags, Le will be destroyed. Especially when the clamping force is applied by the tail section, the Most of the force is concentrated at the edge of the seal in the loop section. Then, the seal is It begins to fail due to peeling and tearing of the material. When this happens, the loop part's Integrity is lost and the reclosing cord no longer functions. The Martin et al. patent, i.e., No. 4. 609.107 and 4.682.976 with poly on the edge beyond the new seal. Reclosable string formed as a tear strip across the top of the propylene bag Disclose. Tear strips are molded laterally into the bag to make it stronger has a code. Tear strips are placed on the edge material beyond the new seal. tear along a series of specially formed slots or perforations. fruit of fruition In the example, a portion of the bag is omitted from molding just before the edge, which allows for a short reclosing cord. A deep mold groove and a loop spaced from one end are provided. The other end of the reclosing string is the tail. It is suggested to fasten the bag through the loop as part. In this case, the tightening due to the interaction of the nub formed on the edge of the reclosed string. This countermeasure is Disclosed in connection with treated cellophane or other organic polymeric materials that can be fact , the bag is used for polypropylene bags, but polyethylene-based bags It does not apply to many people. First, forming molds and grooves in such materials It is difficult to Second, the clamping force still acts on the seal, which It has more potential damage points.

Disclosure of invention It is therefore an object of the present invention to provide easy opening and subsequent closure and re-opening of the bag. An object of the present invention is to provide a method and apparatus for manufacturing a reclosable bag that facilitates the manufacturing of reclosable bags.

Another object of the present invention is to provide a single device which does not require the addition of separate elements or special components. An object of the present invention is to provide a method and apparatus for manufacturing a reclosable bag with a body reclosable string. Ru.

Another object of the invention is to provide a one-piece reclosing cord that can be manufactured without waste material generation. An object of the present invention is to provide a method and apparatus for manufacturing a reclosable bag with a long life.

Yet another object of the invention is to limit additional manufacturing costs primarily to additional material costs. Methods and apparatus for manufacturing reclosable bags and reclosable string structures in foreign countries Ru.

Yet another object of the invention is to provide a one-piece structure having a strong one-piece loop portion and a tail portion. Provided is a method and apparatus for manufacturing a reclosing cord for a reclosable cord bag with ecology of the reclosing cord. There are many things.

In summary, according to the present invention, a storage bag with a reclosing cord is provided with a sealable elastomer. A stick polymer film is formed by a wall of the film and along a first axis. It is made by forming a hollow structure with an open end that extends. Part of hollow structure The film wall portion is crimped along a second axis perpendicular to the first axis and then extended. form the edge part. The edge portion includes first and second portions disposed along the second axis. The storage bag has sections, and these sections create boundaries between successive storage bags. At the edge, there is a second A line of perforations is formed that is parallel to the axis. The film wall also has a second axis and The edges are separated along parallel separation lines. Perforations and separation lines are a removable closure lace between the cut-off line and the adjacent first sealing area; Configure. a first seal parallel to the second axis and between both the first and second portions; The film wall is formed along the line of the first sole region, which is an extension. second axis A second sole parallel to the line is formed on the removable closure palm, and a second sole is parallel to the line; extends across only the second portion, thereby leaving the film wall of the second portion unsealed. It remains as it is. Unsealed film walls should be protected against any film that will be destroyed by peeling. It has no structure.

According to another aspect of the invention, the device is located along the first axis and is sealable. Forming a storage bag from a continuous cylinder formed from an elastic polymer film . The bag has a pouch for the contents and an integral reclosing cord for reclosing the bag. and has. This device forms an edge portion on a continuous cylindrical film wall portion. A portion of the continuous cylinder is crimped along a second axis perpendicular to the first axis. It has a crimp structure for The edges are used to create boundaries between successive storage bags. , having first and second portions disposed along a second axis. Perforation weight is structure The body is perforated into the film wall at the edge along perforations that are parallel to the second axis. Attach an eye. the decoupling structure is parallel to and spaced apart from the second axis; Separate the film wall at the edge along the separation line, thereby eliminating the perforations and cuts. A removable closure lace is formed between the separation line and the adjacent first sealing area.

the first sealing structure is parallel to the second axis and includes the first and second portions; forming a first seal between the film walls along a line in the first sealing area, which is interspaced with do. a second sealing structure parallel to the second axis and removable; a removable cord extending across only the first end to form a tail on the reclosing lace; A second seal is formed along the line on the reclosable string. The film wall of the second part is not yet Any film structure that remains sealed and distal to the tail will break due to peeling. It forms a loop with no structure.

Brief description of the drawing The claims particularly point out and distinctly claim the subject matter of the invention. Seeds of the invention The objects, advantages and novel features of each are set forth in the following detailed description of the accompanying drawings. will be more fully clarified. In the drawings, like reference numbers refer to like parts.

FIG. 1 is a perspective view of an embodiment of a storage bag constructed according to the present invention.

FIG. 2 is a perspective view of the storage bag shown in FIG. 1 with the reclosing string removed.

Figure 3 shows the re-closing string used to reseal the bag, as shown in Figure 1. Ru.

FIG. 4 is a schematic perspective view of an assembly device used to fill bags such as the storage bag of FIG. It is.

Figure 5 shows the side of the front sealing jaw and rear sealing jaw of Figure 4 in the separated position. It is a front view.

FIG. 6 shows the sealing jaw of FIG. 5 moved to the operative position.

FIG. 7 is a perspective view of a portion of the rear sealing jaw.

8 is a plan view of a portion of a front sealing jaw useful in the apparatus shown in FIG. 4; FIG.

FIG. 9 is a side view of the front sealing jaw shown in FIG. 8.

FIG. 1O is a diagram of a cutting blade used in the front sealing jaw of FIG. 7.

FIG. 11 is a diagram of a perforation blade used in the front sealing jaw of FIG. 7.

FIG. 12 is a partially exploded perspective view showing the end portion of the rear sealing jaw shown in FIG. 5; It is.

FIG. 13 is a perspective view of a modification of the storage bag shown in FIGS. 1 to 3.

FIG. 14 is a diagram showing another embodiment of a storage bag using the present invention.

FIG. 15 is a perspective view of an embodiment of a storage bag utilizing the present invention.

FIG. 16 is a schematic perspective view of a sealing jaw that uses resistance heating.

FIG. 17 is an exploded view of a portion of the sealing jaw shown in FIG. 16.

Figure 18 shows the front sealing jaws and rear seal in the open position at line 18-18 in Figure 16. FIG.

Figure 19 shows the closed position of the sealing jaw shown in Figure 18 at line 8-18 in Figure 16. FIG.

20 is a cross-sectional view of the sealing jaw shown in FIG. 19 taken along line 20--20 of FIG. 16; be.

BEST MODE FOR CARRYING OUT THE INVENTION Figure 1 of the drawings shows a storage bag designated generally at 100. Typically, 100 bags are , elastics such as high-density polyethylene and ethyl vinyl acetate It is formed from a coextruded polymer or a copolymer containing polyethylene. heat is adjacent When added to the film layer, the material typically seals by welding.

These films also feature reasonably high puncture resistance and tear initiation resistance. be. The term "sealable elastic polymer material" refers to such polyethylene It includes all base materials as well as other materials with similar properties.

Such materials can also be co-extruded with other films for specific applications and still and use the above characteristics.

FIG. 1 also shows how the bag 100 can be separated from the bag 100 as would occur in the normal production of storage bags one after the other. The adjacent or lower pouch 101 is also shown after it has been removed. The bags have the same basic structure. do. As an example, using bag 100, the film can be sealed around the cylinder. A generally cylindrical open-ended sheet of flexible elastic polymer film. Form pouch +02. The edges overlap to create a longitudinally extending rear seam.

A “bottom” seal +04 and a “top” seal 105 close the ends of the pouch 102. , thus the bag can contain food or pond items. Perforation line lO6 is maintained. forming a boundary between the storage bag 100 and the attached integral reclosable lace 110; Ru.

In particular, the reclosable lace 110 constitutes an edge portion and extends beyond the seal 105. The extension portion 111112 has a film layer. The extension portions 111 and 112 are the edge portion 1 13.114, the reclosing string 110 has an axis 1 parallel to the top seal 105. Located along 15. The two weld seals 116, 117 are parallel to the axis 115. Yes, from the edge 113 to the edge 11 midway between the rear seam 103 and the edge 114. It extends to a position spaced apart from 4. The upper edge 118 of the extension 111112 is Construct a separation line for the bags that touch. Reference number 118 also indicates the separation line between bags 100 and 101. shows.

Welding lines 11G and 117 extending along the axis 115 and extension portions 111 and 112 This creates a tail section 120 in which extensions 111 and 112 are welded together. end 114 The remaining portion of the extension 111 , 112 , including the loop portion 121 , forms a loop portion 121 .

Therefore, as shown in FIG. 1, each of a series of storage bags, such as a storage bag 100, a lot has an integral extension of the film forming two layers beyond the top seal line Ru. The extension has a tail that can be easily torn from the bag along perforation line 106. form a section and a loop structure.

To open the bag, the consumer attaches the reclosable string 110 to the bag, as shown in FIG. Tear along perforations 106 from 100. Consumers then replace the film layer with a new The bag is completely opened by separating along the top seal 105. remove some of the contents Once removed, place the bag 100 above the remaining contents and close it as shown in Figure 3. form the neck 122, wrap the reclosing cord 110 around the neck 122, and secure the tail. Thread section 120 through loop section 121. When the consumer pulls on the tail section 120 , the reclosing lace 110 slides longitudinally and closes the loop portion 1 adjacent the edge 114. 21 slides along the loop formed around the gathered neck 122 and tightens it. Ru.

Any pressure applied to the loop portion 121 will cause it to tear, such as the back seam 103. It is added to the edge 114 that has no mating material. The loop portion 121 is tightened and the tail When section 120 is released, the material stretched in tension relaxes. loop The edge 114 of section +21 firmly abuts the tail section 120, thereby eliminating unnecessary Prevents accidental loosening. However, as a characteristic of such a loop part, re-closing Intentional release of lace 110 causes the end of loop portion 120 to close to the edge of tail portion 120. This is easily achieved by sliding it towards 113 and releasing the tightening action, and the consumer allows easy removal of the reclosing string.

Bag 100 accomplishes all of the above objectives of the invention. The reclosing string 110 forms a pouch. and during the filling process, just add the nominal amount of material and it is formed integrally with the bag. Hidden Therefore, the cost of bag 100 is less than the cost of a conventional bag without reclosing string 110. is not significantly higher.

Moreover, conventional form, fill, and seal pouch equipment can be used without significant modification in Figure 1 Bags such as up to 3 bags 100 can be manufactured continuously. As shown in Figure 4 , such a device rolls a weldable, elastic polymer film 149. from the roller 150 to the panning shoulder via the guide roller 151. 5holder)+52. Panning shoulder 152 is film 149 , folded around a cylindrical mandrel +54, double thickness, vertically It is formed into a web 153 that moves. Heat sealing device 155 and roller 156 They interact to form a rear seam 103. Thus, panning shoulder 152 and mandrel 154 is an open-ended circular mandrel that continuously advances the film in sheet form. The cylindrical structure is changed from the cylindrical structure 153 to the cylindrical structure from the hopper 157 to the mandrel 154. Accepts a metered amount of content to be dispensed through passageway 160. Then, inside The container has a front sealing jaw 161 and a rear sealing jaw 162 schematically shown in FIG. and into a pouch formed above the bottom seal 104.

More specifically, the sealing jaws 161 and 162 are initially grip the web material 153 from both sides and then (in the vertical direction in FIG. 4) to bring the material 153 into a lower position. pull. During this movement, the bag is first perforated along line 106.118. , and is cut. Next, the sealing jaw seals the top seal 105 of the bag 100. Form the bottom seal 104 of the next bag 100A and seals 116 and 117. Ru. At the same time, the device dispenses contents from hopper 157 to fill bag 100A. .

When the jaws 161 and 162 reach the bottom of their movement along the mandrel axis, the jaws interact. At this point, the lower bag, i.e. bag 1oo in Figure 4, falls with its contents. do. Jaws +61 and 162 then move the filled bag along the mandrel axis. Return to the position corresponding to the top. This corresponds to the vertical motion shown by arrow 118 in FIG. It is. At the top of this movement, the jaws close again and hold the web 15 above the filling contents. 3 and start the next cycle to form the next section of film and the next bag. pull it to the appropriate position.

With the exception of sealing jaws 161, 162, FIG. 4 shows conventional forming and filling processing equipment. shows. According to the present invention, this conventional equipment can be used to make the bags shown in Figures 1-3. All you have to do is replace the new sealing jars a 161 and 162. conventional heat The controls and actuation mechanisms associated with the sealing jaws remain substantially unchanged. One function of the sealing jaw 161 and the rear sealing jaw 162 is to Grasp the material in step 3 and pull the material down along the mandrel to form and fill the next bag. Fill it up. Referring to FIGS. 5-9, the front sealing jaw 161 has an upper glyph/< - a gripper bar 163, which faces the rear sealing jaw 162; The gripper bar 164 has a position corresponding to the upper gripper bar 164. Front seal jaw 161 and rear sealing jaws 162 follow facing lower gripper bars 165,166. have additionally. Seal jig g 161.162 from the retracted position shown in Figure 5. 6, the sealing jaws engage the web material 153. Grasp or press it. As mentioned above, the upper gripper bar and lower grip The web material between the upper bar is located at the edge between the bottom of the upper bag and the top of the lower bag. Configure.

The jaws 161 and 162 in the closed position shown in FIG. When pulling downward at , two operations occur. First, front seal jaw 1 The cutting blade 167 of 61 advances through the web 153 and connects the rear sealing jaw 162. It enters the recess 168. This creates the separation line 118 shown in FIG. At the same time, The first blade 169 removes the web material from the retracted position of the front sealing jaw 161. The perforation line 1 shown in FIG. Form 06. The main body portion 171 of the front sealing jaw has a cutting blade 167 and a perforation. The recesses 168, 170 of the stationary water jacket 172 supporting the blade 169 are A cutting blade 167 and a perforation blade 169 are received.

The second operation occurs when an electrical pulse passes through a set of parallel wires. More details Specifically, body portion 171 presses web material 153 against heated filament 174. The upper pressure pad 173 is supported. A similar elastic pad 175 is attached to the web material 1 A portion of 53 is pressed against heating filament 176. The single body portion 171 A central pad 177 presses the web material 153 onto parallel filaments 178, 179. Discipline. When these wires receive an electrical pulse, they unravel the film. generate enough heat to drink. Filament 174 creates bottom seal 104 in FIG. . Filament +76 makes the top seal +05 of FIG. filament +78 ．． 179 is the seal shown in FIG. 1 extending partially across the bag, as described below. Make 116.117.

Seal jaws - gripping structure The structure of the rear sealing jaw gripper bar can be seen with reference to FIG. upper gripper - the bar 164 and the lower gripper bar 166 have the same basic structure and therefore Only 164 will be explained in detail. The frame member 180 is The mounting plate 1B+ supports the jaw 162 and is attached by bolting or other conventional means. and attach it to the frame member 180. For installation, the plate 181 should span the width of the frame member. It stands tall and extends. The upper gripper plate 182 is attached across the surface of the plate 181. The L-shaped mounting of the upper gripper 164 is bolted or mounted. Form a racket. The resulting rigid structure creates a front surface for the gripper bar 164.

The gripper bar 164 is located in a vertical plane across the width of the rear sealing jaws 162. do.

Referring now to Figures 5.6.8 and 9, the front sealing jaws 161 are located at the upper grip. The par plate 163 and the lower gripper plate 165 are elastically attached.

In particular, the front sealing jaw 16+ has a frame construction generally designated by reference numeral +83. The frame structure slides along the rail 184, thereby causing the structure shown in FIG. It moves from the position shown to the position shown in FIG. Frame structure 183 is for front seal Each end of jaw 161 has a frame bracket 185. The face plate 186 connecting the two spaced apart brackets 185 of the gripper bar 163.16. 5 and pads 173, 175, 177. To support.

The upper gripper bar 163 and the lower gripper bar 185 have a symmetrical structure. so that the same reference number identifies the same element. For installation, bar 190 is attached to face plate 1 A rigid support structure extends from and is bolted to bracket 185. make. A machine screw 191 is screwed into the upper gripper plate 190. Upward Gripper bar 163 and lower gripper bar 165 each hang from face plate 186. It has at least two holes extending along a normal axis. These holes 192 are Mechanical screw 191 receives shoulder extension 193 .

Thus, the attachment of bar 190 and body portion 171 to upper gripper bar 163 , grips the lower gripper bar 165 vertically, but is determined by the elongated hole 192. allow horizontal movement over a limited range. The spring structure 194 is the face plate 1 86 to the bracket 185 to seal the sealing jaws 161 and 16. 2 is retracted, the upper gripper bar 16 as shown in Figure 5.6.9. 3 and push the lower gripper bar 165 to the right.

A drive unit (not shown) seals the sealing jaw 161 along the rail 184. When moving toward the working jaw 162, the upper gripper bar 163 and the lower gripper bar 163 Ripper bar 165 first displaces web material 153 onto gripper bar 164. Ru. When the sealing jaw a 161 moves to the final position, the upper gripper bar 163 ．． 164 and lower gripper bars 165, 166 begin to exert a clamping force. S When the roll jaws 161, 162 are brought together, the contents within the web material 153 are The web material 153 is pulled so that the web material is essentially stay in a plane perpendicular to .

More specifically, the upper gripper bar 163,164 and the lower gripper bar 16 5.166 first contacts the intermediate web 153. After that, remove the front sealing jaw 1. 61 continues to move towards the sealing jaws 162 after incremental distances until the mechanical A stop (not shown) is reached. During this incremental movement, the gripper bar 163,1 65 is a shoulder extension 193 that is displaced in the horizontal direction and compresses the spring mechanism 194.

By adjusting the spring mechanism, the final gripping force is obtained and the gripper bar 16 3~! 66 exerts this force on web 153. This is set to web material 153. Vertical movement of the jaws provides a firm grip and, in Figure 5.6, the mandrel additionally pulls the web material from the loop 154;

Seal jaws - sealing function Pads 173, 175, 177 connect web material 153 to wires 174, respectively. Press 17G and 178.179 at the same time. In particular, with reference to Figure 7, the rear water Jacket 172 has fingers 200.2 forming slots 168.170. 01.202. The heat conductive insulating film 203 is placed on the surface of the water jacket 172. located on the surface. This film connects the upper gripper bar 164 and the water jacket 1 a front seal extending between 72 and having an end of fingers 200.201.202; The surface facing the jaw 161 and the surface constituting the receiving slot 168, 170. water jacket 172 and lower gripper bar 166. It extends between.

Finger 200 supports heating wire 174. The film 203 is a heating wire electrically isolated from the water jacket. Similarly, finger 201 connects wire 17 8 and fingers 202 support wires 176. Rear seal jaw 1 A conductor support structure 204 at each end of the water jacket 172 extends across the surface of the water jacket 172. Support Ya.

Next, referring to FIGS. 5, 6 and 9, the fins of the sole pad body 171 Slots formed in each end of the gars 210.211.212 allow the elastic pads 173 , +77, and +75, respectively. Pads may be glued or otherwise Installed by means. The bin 213 is changed relative to the faceplate 186. The main body 172 is supported so that it can be positioned. The other spring structure 214 is The body 172 is urged against the rear sealing jaw +62. The jaws are connected to each other as shown in Figure 6. When the elastic pad 173, 177, 175 is Press onto the heating wires 174, 178, 179 respectively. The spring structure 214 The force exerted by the head on the material 153 and the wire is transferred by the body 171 to the face plate of FIG. 186 to the left.

Referring to FIGS. 5, 6, 8, and 9, the sealing pad body 171 also has a supports a standoff 215 that passes through a hole in the rate 186 and moves with the body 172; do. The standoff 215 shown in FIG. 8 and FIG. Alternatively, a mounting for electrically actuated solenoid 220 supports bar 216. armature reciprocates along an axis perpendicular to the face plate H86. Each armature is The block 222 is connected to the cutting blade 167 and the perforation blade. 169 is attached to the tab 223.

When the solenoid 220 is not energized, the cutting blade 167 and perforation blur The card 169 is positioned as shown in FIGS. 5 and 9. Attached solenoid 220 6. Advance the cutting blade and perforation blade to the position shown in Figure 6 by applying force. . An internal solenoid stop prevents the displacement of the cutting blade 167 and perforation blade 169. Restrict.

Seal Jaws - Cutting Blades and Perforation Blades The cutting blades shown in Figures 9 and 10 are: The cutting blade 167 has a plurality of 7-shaped teeth 230 cut on its surface. Each tooth is It has a figure 7 shape extending from the surface side apex 231 to the base 232. On one side, i.e. , the lower surface 233 of the cutting blade 167 is cut diagonally. In a particular embodiment consisting of: The teeth have a pitch of approximately 3.17 + no + (approximately 1/8 inch) and approximately 9.52 on ( depth of approximately 3/8 inch) and a tooth angle of approximately 30'' included.

When the cutting blade 167 extends, the cutting blade 167 cuts the material 153.

The perforation blade 169 shown in FIG. 9 and FIG. It has a plurality of V-shaped teeth extending up to 37. The notches 238 on the alternating teeth are at the root 2. 37. When the blade 169 extends, the blade 169 , initially creates a series of small holes, each hole increasing laterally as the blade 169 extends. spread in the direction. However, even when blade 169 is fully extended, The bar 169 does not cut the web material 153 at the location corresponding to the notch. to this Thus, the solid intermediate portion and perforation line 105 shown in FIG. 1 are created.

Seal jaws - heating wire support 7 and 12 show a portion of the rear sealing jaws 162, in particular various heating wires. A conductor support structure 204 is shown. Each conductor support structure 204 has a machine screw 241 or , has an insulating block 240 with mounting holes for other elements, and this machine screw is inserted into the block. Gripper-mounted locks 240 are secured to each end of plate 182. parallel slot wires 174.176.178 respectively. ．． 179 and passes through block 240. The pivot pin 246 vertically through the pivot hole 247 of the hole 240.

A pair of wells 248 in the bottom wall of each slot 242-245 form a pair of wells 248 in the bottom wall of each slot 242-245. Rotate the toggle arm 250 of 245 away from the water jacket 172. A spring 249 is housed therein. Each toggle arm 250 includes a main body portion 251; It has an arm extension part 252. Common to main body portion 251 and arm extension portion 252 The edge 253 of has two wells 254 that receive the other ends of the spring 249.

hole 255 in body portion 251 receives an annular spacer 256 with hole 257; The annular spacer 256 rotates about the pivot pin 246. toggle lure The spring 250 and its spring 249 are connected to one of the slots, such as slot 242. When properly attached to the The jaw 162 is biased away from the center.

Each arm extension 252 defines a transverse slot 260 and a longitudinal recess 261 in a plane. It has at 262 spaced apart from 253 . Slot 260 and recess 261 receives the heating filament terminal structure. Thus, when the device is energized , springs 249 act on toggle arms 250 at each end of each filament, causing the filaments to 162 and extends across the width of the sealing jaws 162.

Toggle 250 is conductive. Terminal screw 263 and hole 264 toggle the conductor. provides an advantageous means for coupling to the arm 251, thereby providing an advantageous means for coupling the attached filler Constitutes a conductive path together with the

Referring to FIG. 7, four filaments 174.176.178.179 The surfaces of the fingers 200, 202, 201 are applied to the post-heat sealing jaw 162. Extends completely across. When power is applied to four filaments simultaneously, these filaments are sufficient to melt the film pressed against those wires. Instantly heats to a certain temperature. A plurality of holes 265 are provided in the fingers 200.2011. 202 through each finger near the end. Cooling water circulates through these passages, Removes heat from fingers and filament. As a result, water-cooled jacket 1 72 focuses the heating and sealing on the area of the filament. Thus, the f Filament 174.716 melts the material essentially along a line, as shown in Figure 1. uni, make a straight seal 104,105.

However, filaments 178, 179 are each coextensive with loop 121. The entire portion of the ment is coated with a highly thermally conductive material such as silver solder. silver wax, Alternatively, an equivalent jacket may be used to transfer heat from the filament 78.179 to a water jacket. Dissipate to the square 72. This reduces the temperature to that required to melt the web material. Limit the temperature to a temperature below that of Therefore, the web material is placed in a line coextensive with the covered area. remains unsealed along, forming loop 121.

Referring to FIG. 7, a plurality of holes 265 are provided at the ends of the fingers 200, 201, 202. Penetrate each finger in close proximity. Cooling water circulating through these passages keeps the structure to remove heat from and cool the rear jaw and wire between successive operations.

The sealing jaws shown in Figures 5 to 11 are compatible with forming, filling, and sealing punch devices. A bag having the structure as shown in FIG. 1 is made without significant modification. These sea The jaws are operated by the auxiliary actuator and power source used in conventional equipment. do. According to the object of the invention, this device closes the ends of successive bags and closes the ends of successive bags. It has a cutting blade between the two sealing wires to cut the sealing wire. Perforation blur The cord creates a tear line to facilitate removal of the edges from adjacent bags.

A pair of sealing filaments between the cutting blade and the perforation blade Only partially seal the edges across the jaw. This partial seal replaces the back seal. ``As long as it crosses, such loop structures are less susceptible to delamination. This allows this The edges are easily separated from the bag and have a reclosable lace with loop and tail structure. Form.

Another bag embodiment Figure 13 shows that the consumer can use the bag in folded or rolled form or in individual bags. Discloses another bag structure that can be purchased in packaging. Figure 13 shows the roll Two storage bags 300, 301 are shown as being removed from the storage bag 300,301. Bag 300 is , formed as a pouch 302 with a back seam 303 and a bottom seal 304 It has a film that has been A perforation line 306 across the bag marks the edge or recloser. A chainable lace portion 310 is configured on the outside of the pouch 302. This example includes the Fresh material that crosses the bag near the perforation line 306, such as the seal 105 in Figure 1. No freshness seal is provided.

As shown in FIGS. 1-3, an extension 31L3 outside the perforation line 306 12 forms a reclosing string. The edges 313 and 314 of the edge portion are in the lateral direction. Located at both edges of the bag on axis 315. Seals 316, 317 are attached to the tail section 320. It extends from the end 313 to beyond the back seam 303 to form a Ru. The unsealed portion of the reclosing lace 310 forms a loop 321.

In this example, the bag is shown after being cut from a continuous roll. There is. A top edge 322 extends across the lower pouch 301 and a bottom edge 323 extends across the pouch 301. It extends across 0. If the bags are to be fed into continuous rolls, the seal The cutting jaws are necessary to separate the reclosing string 310 along the perforation line 306. Add a perforated separation line to the top edge 322 that will tear with less force than required. and is formed to extend from the bottom edge 323.

When using the bag 300, the consumer must separate the bag 300 from the roll or wrap the bag 300. Take it out. The consumer then inserts the reclosing string 310 along the perforation line 306. I pulled it out of the bag. This allows the bag to be opened in a sufficiently accessible manner.

When the bag is full, the consumer can twist the top of the bag to form the neck section and reclose it. A string 310 is used to tie the neck portion of the bag closed.

Figure 14 shows that the reclosing string and bag are located at the bottom rather than at the top opening. discloses a similar bag separated by. This measure involves removing the reclosure string. It is possible to fill the bag without removing it. More specifically, FIG. Two bags 400,401 are disclosed. The back seam 403 runs along the length of the bag. It extends. A bottom seal 404 forms the bottom of the bag. Perforation line 406 , across the bag proximate the seal 404 forming a reclosing cord 410 in the material. It is formed by More specifically, the film extensions 411, 412 are attached to the seal 40. 4 and having ends 413 and 414 and centered on the transverse axis 415. Form a closure cord. Seals 416, 417 from edge 413 to back seam The film extension part 4]1.412 extends beyond the point 403.

This forms a tail portion 420 and a loop portion 421. In this form, The bag is open at the top 422. Bottom edge 423 and top edge 422 are provided individually Form a separation line consisting of the cutting line of the bag or the perforation line of the bag supplied in rolls. .

Bags formed according to the invention can also be formed by folding the film . As shown in FIG. 15, bag 500 is a pouch formed of two layers of film. 502. Parallel spaced seals 504 and 505 form a pouch 502. to be accomplished. However, the seal 505 is formed by the film layers 511 and 512. for configuring a reclosing lace 510 between the seal 505 and the lip 507. It is located inside the edge 507 of the bag. The reclosing string 510 is shown in FIG. Structure similar to that shown, i.e. axis with ends 513, 514 parallel to seal 505 The structure has a structure located across line 515. Between perforation line 506 and edge 507 Seals 516 and 517 formed in the tail portion 520 form the tail portion 520 and the loop portion 52 Leave 1. In this bag, the top opening 522 is formed by the edges of the overlap. The closed bottom part of the bag 523 consists of two layers of film folded over each other. It is formed by the middle part when it is closed.

Equipment for resistance heating The apparatus of Figures 5 through 12 uses an impulse heating technique as shown in Figure 1. An apparatus for producing storage bags with an integral removable closure string is shown. are doing. Storage bags can also be manufactured using resistance heating to form a seal. It is possible. To distinguish between impulse heating jaws and resistance heating jaws, In the following description, only reference numerals 161 and 162 are used for FIG. Reference numerals 161', 162' are used to represent the resistive heating jaws. Figure 4 As applied to the overall structure shown in FIG. The thermal jaws are initially used to grip the material, as described above in connection with FIG. Close. Thereafter, the body portion of the sealing jaw with the resistive heating element is extended. to form a seal and the knife extends to separate adjacent bags. Next, seal the Before the jaws 161' and 162' retract to release the bag +00, the knife and seal The main body of the jaw is retracted. The apparatus shown in FIGS. 16 to 20 is a one-piece A system implementing resistive heating technology to produce bags with removable closure straps. 16 shows a particular embodiment of the wheels 161', 162'. This device is , an upper gripper bar 601 provided on the front sole jaw 161' and a rear seam. A lower gripper bar 602 provided on the gripping jaw 162' and an upper gripper bar 602 provided on the jaw 162' and a compression insert 603 located along one side of the bar 601. C The front sealing jaws 161' and 162' have a symmetrical structure. 1' and a lower gripper bar 604 installed at the rear sealing jaw 162'. and a lower gripper bar 605. The compression insert 606 is It is located on the surface of the ripper bar 606. The front sealing jaw 161' is Frame 6 connecting ripper bar 601 and lower gripper bar 604 to each other It has 07. For the rear sealing jaw 162', a similar frame 608 is used. , connecting the lower gripper bar 602 and the lower gripper bar 605 to each other. Ru.

Various mechanisms not shown in these figures include sealing jaws 161', 1 62' in the retracted position as shown in FIG. 18 and in the retracted position as shown in FIGS. 19 and 20. and a closed position along the axis 610. Usually the axis 6] 0 is horizontal.

In the retracted position of FIG. 18, the upper gripper bars 601 and 602 and the lower Upper bars 604 and 605 extend along axis 613 and are open ended. On both sides of the two film layers forming the walls 611 and 612 of the hollow structure, has been done. Typically, axis 613 is vertical. The gripper bar is attached to the wall 611 and and 612 when leaving a mandrel such as mandrel +54 shown in FIG. Deflect the cylindrical shape into a flat shape. In the closed position shown in Figures 19 and 20, Inserts 603 and 606 engage wall 611 and connect wall 611 to wall 612 and 1] Press against each side of the upper gripper bar 602 and the lower gripper bar 605. Ru.

As can be better seen with reference to FIGS. 16 and 17, gripper bar 601 and 602, and the gripping action of gripper bars 604 and 605 spans the width of the bag. and extends parallel to axis 614, which is also perpendicular to axes 610 and 613.

Typically, axis 614 is horizontal. Furthermore, the middle of inserts 603 and 606 Portions of walls 611 and 612 are film walls, as shown in FIGS. 18 to 20. 611 and 612 constitute an edge portion 615 of the extension. As mentioned above, the edges are The boundaries between successive storage bags, such as storage bags 100 and 100A in FIG. Ru.

The front sealing jaw 161' is also attached to and with the frame 607. The seal jaw main body 616 is supported as it moves. The seal jaw body 616 is , comprising two cylindrical receptacles 620 and 621 extending parallel to axis 614. The main body portion 617 has a main body portion 617. As shown in FIGS. 18 to 20, the receptor 620 and 621 support resistive heating elements 622 and 623, respectively. .

In operation, resistive heating elements 622 and 623 are heated using techniques well known to those skilled in the art. techniques and equipment to raise the temperature of the sealing jaw body 616 to a controlled level. let Further information on heating controls and actuators is provided here for ease of clarity. I will omit the explanation.

Main body portion 617 also supports upper sole arm 624 and upper seal arm 624. The arm 624 further includes an upper sealing finger 625 and an upper intermediate sealing fin. It is divided into 626 and 626. Recess between sealing fingers 625 and 626 627 accepts a cutting blade 630 of the type shown in FIG. 1O. Although not shown, Another structure generally described in connection with FIGS. 5 to 12 includes the sealing body portion 6. 16 and relative to it.

This is particularly illustrated in the sequence of operation shown in FIG. The knife knife 616 is moved to the position shown in FIG. 630 is extended relative to the body 616.

Additionally, the seal body portion 617 also includes a lower sealing filler parallel to the axis 614. a lower arm seal with a finger 632 and a lower intermediate sealing finger 633; support the structure 631. Furthermore, the sealing fingers 632 and 633 are spaced apart to receive and support a perforation blade 635 of the type shown in FIG. A recessed portion 634 is configured. Perforation blade 635 , like cutting blade 630 is movable with and relative to the sealing jaw body portion 617.

One body 636 for the rear seal shown in FIGS. 18 to 20 has one body 636 for the front seal. It has a similar structure to body 616. More specifically, the rear seal jaw body 636 has an upper arm 640 with an upper sealing finger 641 and a normally horizontal surface. , that is, flat in the plane formed by axes 610 and 614 shown in FIG. upper intermediate sealing fingers 642 spaced apart and extending in parallel planes; It has a main body portion 637 that includes. Seal fingers 641 and 642 are concave. They are separated by a section 643. Lower arm 644 has axes 610 and 6 spaced apart by recesses 647 on the other plane parallel to the plane defined by 14 In addition, the lower seal finger 645 and the lower intermediate seal finger 646 are To support. Like the front seal jaw body 616, the rear seal jaw body 636 is movable with and relative to frame 608.

Each finger 641, 642, 645 and 646 is typically in a vertical plane, i.e. a finger on a plane parallel to the plane defined by axes 613 and 614; 641 ends with a flat end face such as end face 650. Similarly, each seal filler The fingers 625, 626, 632 and 633 terminate in vertical planes. sticker Specifically regarding the finger 625, the end surface 651 of the finger 625 is It is formed as a top and it is 1. Upper chamfer 652 and lower chamfer 6 53. The heat conductive insulating film 203 is on the surface of the water jacket 172. In the embodiments of FIGS. 16-20, such as the structure shown in FIG. 7 located on a surface, Surface treatments for end faces, such as end faces 650 and 651, may also be performed. Teflon After forming the corresponding seal, a coating or layer with a material such as , facilitating the release of surfaces 650 and 651 from walls 611 and 612 .

The front seal jaw main body 616 and the rear seal jaw main body 636 are shown in FIG. As shown, in the closed position, the cutting blade 630 and perforation blade 635 are in the closed position. Perforation work and cutting work when extending into the recesses 643 and 647, respectively. , and sealing work is done. More specifically, the cutting blade 630 is shown in FIG. edge portion 61 along a cutting line parallel to and spaced apart from axis 614 5 film walls 611,612 are cut. This is similar to the top edge 118 in FIG. are doing. Perforation blade 635 is similar to perforation 118 shown in FIG. Along a perforation line parallel to a similar axis 614, the film wall 61 of the edge portion 615 1. Make a perforation at 612. Between the cutting blade 630 and the perforation blade 635 The edge area of the removable cord corresponds to the reclosable lace 110 shown in FIG. A closure lace 654 is constructed that can be closed. For sealing a 161', 162° are additionally adjacent areas available for other seals. Configure the area.

One such area 655 is defined by compressible insert 603 It is located between the clamping point and the cutting blade 630. Other seal areas 656 are a contact point defined by a first blade 635 and a compressible insert 606; It is located between.

19 and 16 when the sealing jaws 161', 162° are in the closed position. As shown in Figure 20, the front seal jaw main body 616 and the rear seal jaw main body 616 636 is also in the closed position and has a seal area adjacent reclosable lace 654. A seal is formed in each of the regions 655,656. Fingers that run across the width of the bag -6411, that is, the surface 651 of the finger 641 parallel to the axis 614 and the edge 6 50 through the plastic film 611, 612 when in contact with The transferred heat causes the walls 611, 612 to melt together and seal 104 in FIG. A seal corresponding to is formed. Similarly, the end surface of finger 632 -645, thereby corresponding to seal 105 shown in FIG. A seal is formed across the bag. Both of these seals are shown in Figures 16 and 1. The first part 660 and the second part 661 disclosed in FIG. They are located in seal areas 655 and 656, respectively.

A configuration for forming a seal such as seals 116 and 117 in FIG. fingers 626, 633 on the jaw 161° for the rear seal and the jaw 162' for the rear seal. It incorporates the upper fingers 642 and 646. For definition, see Figure 16 and and as shown in more detail in FIG. 17, the sealing jaws 161', 162° are having a first portion 660 and a second portion 661 disposed along an axis 614 It can be considered that Any back seal, such as back seal 103 in FIG. Across the sealing jaws 161', 162' of the first portion 660 parallel to the line There is. Thus, the finger 625 and the corresponding sealing finger 6 41, a sealing finger 632 and a corresponding sealing finger 8 45 is intertwined with the first part 660 and the second part 662, A corresponding seal formed is a back seal 662 formed on the back wall 612 of the bag. produces a seal that completely traverses the bag, including any back seals represented by . However, sealing fingers 626.642 and sealing fingers 633,646 area) is located between only the first portion 660 shown in FIGS. 16 and 17. It is spreading. Essentially, these active heating regions along axis 614 The length is from one edge to the point beyond any back seal 662, including the bag. The remaining portion of the reclosable lace 651 is as shown in FIG. does not include a back seal 662 or any similar seam or seal. stomach. The transverse seals thus formed correspond to seals 116 and 117 in FIG. do.

To obtain the loop 121 shown in FIG. 16 and 17 have been changed. second part All extensions of sealing fingers 626, 633 to 661 are omitted . Arms 624.631 are modified to accept insulation inserts 663. ing. This insulating insert extends into an area that would otherwise be interspersed with the second portion 661. formed by removing the material that makes up the extension of the fingers 626.633. It is fixed to the rear surface 664. A small screw such as a small screw 664 is inserted into the insert 66. can pass through a hole such as hole 667 in No. 3 and be fixed to a screw hole such as screw hole 668. The back surface 664 can be hit like this. Typically, multiple Contains fixed structures.

Further, with reference to FIGS. 16 and 17, the insert 663 is made of insulating material. It is formed of. The insert 663 is parallel to the axis 614. It has a central air passage 670 passing through it. This passage is located in the insert 663. A plurality of air passages 671 extend to the upper edge and extend to the lower edge 674 of the insert 663. It functions as a header for a plurality of air passages 673. The outer edge 675 is air It has means for connecting to a source 676. The opposite end 677 has a screw hole 680. extends parallel to axis 610 and intersects central air passage 670 .

Add machine screws or valve screws 681 to the structure and connect holes 671, 673 and outlet holes. 678 can be controlled. Air leaving outlet hole 678 flows toward the first portion 660 and flows into the first portion 660 immediately adjacent to the second portion 660. It can be useful for cooling configurations that are as long as 60 mm. air passage 671 The leaving air cools the cutting blade 630 of the second portion 661. Air passage 673 The leaving air cools the perforation blade blade 635 of the second portion 661.

This cooling reduces the temperature of the blades 630,635 to the walls 611,61 in contact with them. 2 prevents the second portion 661 from reaching a temperature that would create a seal. Ru.

Referring to FIG. 20, the rear sealing jaws 162 have been similarly modified.

The sealing fingers 642 and 646 are connected to the second part 661 by an insulating block. 682. Therefore, Ji g 161°, 16 2' reaches the position shown in FIGS. 19 and 20, the insert 6 A temperature of 63.682 melts the film at the surface in contact with the wall 611.612. The temperature remains lower than the

When the sealing jaws 161", 162" are separated, the jaws 161', 1 The area of the bag depending from 62' is similar to the structure shown in FIGS. 1 and 2. Contains a reclosable lace with a structured structure.

Heat sealing fingers 626 and 642 and heat sealing finger 6 32 and 646 form a seal between film walls 611 and 612. ing. These seals have a removable closure string portion 65 parallel to axis 614. It is formed within 4. These are the first portion 660 only and the extensions.

Insulating inserts 663 and 682 have second portion 661 unsealed. We guarantee that In addition, the unsealed parts are back sealed. As a result, the second portion 661 does not have a similar structure. The loop formed in the Any film structure that is formed as a polymeric film and is susceptible to delamination. It creates a structure that is spaced from the tail, which is also far away from the tail.

In operation, the mechanism rotates the various configurations of the seal jaws 161° and 162". The components are operated according to any of a number of orders. Typically, When closing a 161' and 162', as shown in FIG. The sandwiched bag material is pulled downward along the mandrel 154 and heat-sealed. The heat seal jaw 161' performs generation, cutting, and perforation generation operations. and 162゛ by releasing the bag by retracting it and returning it to the upper position. 1 cycle divided into 360 degrees is constructed. 0 degrees is Heaton Lucy Assuming that it corresponds to the beginning of the closure of Rougeau-161' and 162°, then There are two possible orders of operation.

Operation l is based on prior art operations.

First, the sealing jaws are located near the positions shown in Figures 19 and 20. 161' and 162' grip the wall 611 so that the edge portion 615 can be determined. Next, remove the front sealing jig at a position close to that shown in Figure 19. The jaw main body 616 and the rear seal jaw main body 636 are attached to the frames 607 and 6. 08, the sealing operation is started by being moved respectively.

Other devices corresponding to the solenoid 220 shown in FIG. 0 and perforation blade 635 into the recess 624 and the perforation blade 635 as shown in FIG. and 627, blades 630 and 635 pass through wall 611 and into recess 64. 3 and 647 into the position shown in FIGS. 19 and 20. . Typically, cutting blade 630 and perforation blade 635 are extended simultaneously. Ru. After a short dwell time, solenoid 220 (FIG. 8) and similar devices inserts the cutting blade 630 and perforation blade 635 into the recesses 627 and 634. 616 and the heat sealing jaw body 63. Separate from 6. Thereafter, other devices are used for sealing jaws 161" and 162° , along the axis 610, and when the operation is completed, the bag 101 in FIG. Release the lower bag.

When following operation 2, the cutting blade 630 and perforation blade 635 are all It is extended prior to every clamping operation. Next, the seal jaw main body 616 and and 636 are closed, heat sealing begins, and immediately the jaws 161' and 162° is closed and a clamping operation is performed. At the end of this operation, the job -161' and 162'' are drawn in. Then, the sealing jaw main body 61 6 and 636, then cutting blade 620 and perforation blade 635 are pulled. be included. Therefore, at the beginning and end of operation 2, the perforation blade 63 5 holds the lower bag at a predetermined value in the vertical direction, like the bag 101 in FIG. Then, in gripping bars 601 and 602 and gripping bars 604 and 605, without releasing the bag.

Operations 1 and 2 illustrate specific examples of various sequences of operations. use other order You can also be there. Which one to choose depends on the size of the bag and the walls 611 and 612. Determined by thickness, operating speed and other requirements.

In summary, various embodiments of storage bags with integrated reclosing straps and disclosed embodiments of an apparatus for carrying out a method of manufacturing something. Each implementation Examples provide bags that can be easily opened. Container bags will continue to be closed. and has a reclosing lace to make it easy to reopen. This integrated reclosing A bag with a chain cord does not require any additional elements or special components. manufacturing As a result, no waste is generated, and furthermore, the required manufacturing costs are mainly , only a small edge material. In the bag, the reclosing string is easily removed. It has a strong integrated loop section and tail section that can be used By having this, the re-closing structure can be used reliably and easily. Ru.

Many variations can be made to the disclosed device without departing from the invention. It should be clear that The position and orientation of the reclosing string may vary depending on the bag. Can be changed. The bag may have a back seal or a seam. It is not necessary. If the bag has a back seal or seam, To optimize the different relationship between the lengths of the loop and tail sections, the seal can be The amount of extension can be changed. The bag has a brand new seal on one opening You may or may not have one. All or some features of the disclosed embodiments The specifically disclosed method and apparatus may be used in conjunction with alternative methods to achieve certain effects. , the operating sequence and the device may also be substituted. Therefore, the scope of the claims Covers all such modifications and variations that fall within the true spirit and scope of the invention It is attached with the intention of

FIG.4 FIG.5 FIG.6 2f) 4 FIG.9 of' Continuation of front page (31) Priority claim number 997,701 (32) Priority mill January 14, 1993 Japan (33) Priority claim country United States (US) (81) Designated countries EP (AT, BE, CH, DE.

DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, S E), AU, BR, CA, FI, JP, KR, No, PL, RU, UA (72) Inventor: Marteisi Andrew Mag, United States of America, Masachu -Sets State 02108 Boston 9R 48 Pecon Street

Claims (69)

[Claims] 1. Consisting of overlapping layers of sealable elastomeric polymer film with at least one edge A storage bag having an integrally formed storage bag for re-closing the storage bag. A long reclosure means A. the front for forming said elongated reclosure means along an axis parallel to said edge; an overlying layer extending beyond the edge of the storage bag and having a first end and a second end; an extension; B. the portion from the first end to a position spaced apart from the second end; sealing the layer overlying the extension to form the tail portion of said reclosure means; fused closure means for said fused closure means positioned above said fused closure means and said second end; The portion of the layer to be deposited is a loop that does not contain any structure that would be subject to failure due to film delamination. C. Intermediately between the melt closure means and the storage bag, a front the reopening handle formed on the extension at a position close to the edge of the storage bag; and separation means for facilitating removal of the stage from the storage bag. Features a reclosable storage bag. 2. The debris located on the film is located along an axis intermediate the first end and the second end. including a back seam extending across the first extending from the end to a position intermediate between the second end and the back seam. A reclosable storage bag according to item 1. 3. The melting closure means is arranged along an axis along which the layer located on the film of the extension is melted. 2. A reclosable storage bag according to claim 2, which includes a line parallel to . 4. A sewing machine in which the separation means is formed by penetrating a layer located on the film. The reclosable storage bag according to claim 2, which includes a line of sight. 5. extending across the storage bag at said edge from said first melt closure means to said a second fused closure means provided opposite the perforation line; Closing the storage bag at the edge independent of removal of the edge extension at the edge A reclosable storage bag as described in item 4. 6. The storage bag includes a second storage bag formed parallel to and spaced apart from the edge. a second edge, and the storage bag further includes a second edge for closing the storage bag with the second edge. 2. A third melt closure means extending across said storage bag at two edges. A storage bag that can be reopened according to item 5. 7. The melting closure means is arranged along an axis along which the layer located on the film of the extension is melted. 2. The re-chainable line according to claim 1, which includes at least one line parallel to storage bags. 8. the separating means includes a perforation line extending through a layer located on the film; A reclosable storage bag according to claim 7. 9. The storage bag may be provided with the storage bag independently of the removal of the edge extension at the perforation. extending the storage bag across the edge to close the storage bag at the edge; a second melt closure means disposed opposite the perforation line from the first melt closure means; 8. A reclosable storage bag as claimed in claim 7 further comprising melt closure means. 10. The storage bag includes a second bag formed parallel to and spaced apart from the edge. an edge, the storage bag further having a front edge for closing the storage bag with the second edge. a third melt closure means extending across the storage bag at a second edge thereof; A reusable storage bag according to claim 9. 11. A. formed as a continuous open structure at the first end and the second end; a sealable elastic polymer film; B. a first closure means for closing one of the first and second ends; ．． a first and second opening along an axis parallel to the first end and the second end of the continuous opening structure; said first and second violet ends to form a reclosing means extending between said first and second violet ends; the elastic polymer film removably attached to one of the end and the second end; edge extension and further D. a position spaced apart from the first axial end and the second axial end; a second closure means for affixing a portion of said edge extension up to said second closure means; an edge extension between the closure means and the second axial end by film delamination. Does not have a structure that can be damaged A reclosable storage bag characterized by having. 12. the film forming a back seam between the first end and the second end; said second closure means extends from said first axial end to said backseat. Claim 11, wherein the second axial end extends to an intermediate position between the arm and the second axial end. Reclosable storage bag as described. 13. The first closure means and the second closure means are located near the first end. , the first closure means forming a boundary between the edge extension and the remainder of the storage bag. The reclosable storage bag according to claim 11. 14. The edge extension extends through the layer overlying the film and through the film. a row of gaps formed intermediate the first closure means and the second closure means; 14. A reclosable storage bag according to claim 13, having perforations. 15. The film has a back seam formed between the first end and the second end. and the second closure means extends from the first axial end portion to the back seam. as claimed in claim 13, extending to a portion intermediate the second axial end portion. Comes with a reclosable storage bag. 16. the edge extension has a scrap located above the film and the second closure means along a line parallel to the axis melting the layer located above said edge extension; 14. A reclosable storage bag according to claim 13, having a seal. 17. the edge extension has a layer overlying the film and the second closure The means has a plurality of seals along spaced apart parallel lines, the means having a plurality of seals along spaced apart parallel lines and extending over said edge extension. The film located on the line is attached by melting said line. A reclosable storage bag according to item 13. 18. Additionally, a third closure means is provided near the second end of the film arrangement. , a reclosable storage bag according to claim 13. 19. The first closure means is located at a first end of the film arrangement and is located at the front. 12. A reclosing device as claimed in claim 11, wherein a retaining edge extension is located at the second end. A storage bag that can be chained. 20. The film composition has a backsheet between the first end and the second end. said second closure means extends from said first axial end portion to said backshield. as claimed in claim 19, extending in a portion intermediate between the arm and the second axial end portion. Comes with a reclosable storage bag. 21. The edge extension extends through the layer overlying the film and through the film. formed intermediate the juncture of the second closure means and the formation of the extension means; 20. The reclosable device of claim 19, having a row of spaced apart perforations. A versatile storage bag. 22. the edge extension has a layer overlying the film and the second closure The means includes a line parallel to the axis in which the film layer located above the edge extension is melted. 20. A reclosable storage bag according to claim 19, having a holder. 23. the edge extension has a layer overlying the film and the second closure The means are arranged such that the overlying film layer of the edge extension is attached by melting. 20. The recloser of claim 19, having a plurality of spaced apart parallel lines. A storage bag that can be chained. 24. A. a sealable elastic polymeric film having a first edge and a second green edge; Open with a green portion of the overlying film extending across one end of the composition formed into an end composition; B. A fillet is provided between the edges to facilitate removal of said edge portions from the construction. C. forming a separable connection within the lumen; closing one of the ends of the open-ended construct; ,D. a portion of the edge portion spaced apart from the first edge edge and from the second edge edge; and thereby sealing the film near the second edge through film delamination. Features an integral reclosing lace that forms into a loop without any configuration that is subject to breakage. How to form a storage bag. 25. The step of forming a separable connection includes forming holes spaced apart through the edge portion. Molding the storage bag according to claim 24, which includes the step of forming a thin line. How to do it. 26. The process of closing and sealing one of the ends of an open-ended arrangement is an impulse The sealing process occurs essentially simultaneously; to form an impulse seal in the film, thereby causing the film to and an intermediate portion spaced apart from the second edge. A method for forming a storage bag according to claim 24. 27. The impulse sealing step includes forming a space apart from a first edge and a second edge. first and second seals formed along parallel lines between the separated intermediate portions; A method of forming a storage bag according to claim 25. 28. In addition, it includes the step of closing the other end of the construct by an impulse seal. A method for forming a storage bag according to claim 24. 29. The step of forming the open-ended structure involves rolling the film around a cylinder. wrapped in a sheet form, overlapping the edges, and forming the edges into a back seam, thereby opening the Molding the storage bag according to claim 24, comprising the step of creating an end cylindrical structure. How to do it. 30. The step of forming a separable connection includes forming an edge portion with a pack seam. Preservation according to claim 29, comprising the step of forming a perforation line through the How to form a bag. 31. The steps of closing and sealing one of the open-ended components include an impulse sequence. The sealing process occurs essentially simultaneously by the impulse pulse; a layer between the film layers of the composition, thereby connecting the layers to the first edge; joining between the back seam and the intermediate edge between the second edge; A method for forming a storage bag according to claim 30. 32. The impulse sealing step includes forming a space between the first edge and the second edge. a first seal formed along a parallel line between an intermediate position separated by a first seal; for forming a storage bag according to claim 31, forming a second seal; Method. 33. Each removable closure cord is made from an intermediate length of polyethylene-based film. 1. A method of forming a continuous storage bag comprising: A. The film is first forming a wall of an open-ended hollow structure extending along an axis of the B. gripping a portion of the hollow structure along a second axis that intersects the first axis; a first portion located along the second axis on a coextensive wall portion of the film; and a second part, and also forms a boundary between successive preservation spaces. The process of C. the wall of the film of the edge portion along a perforation line parallel to the second axis; The process of perforating the D. along a cutting line parallel to and spaced apart from the second axis; cut the wall of the film at the edge, thereby creating a line between the perforation line and the cut line. forming a removable closure lace therebetween and also forming an adjacent first sealing area. The process of E. a front parallel to the second axis and coextensive with the first part and the second part; forming a first seal between the walls of the film along the line of the first seal area; The process of F. between the walls of the film, parallel to the second axis and identical only in the first part; forming a second seal along the line of the removable closure lace; have, This leaves the film walls of the second part unsealed and , this unsealed film wall has no film structure that can be damaged by delamination. , a method characterized by: 34. When the perforation process, the cutting process, and the sealing process are completed, , further comprising the step of releasing the film, thereby releasing the individual storage bags. , A method of forming a storage bag according to claim 33. 35. The perforation step and the cutting step are performed substantially simultaneously, and 35. The steps of forming a seal are performed substantially simultaneously. How to form a storage bag. 36. forming the film into a structure comprising: i. Said fillet in the form of a sheet wrapping the lum around the cylinder; ii. The edge of the film is connected to the first iii. the end parallel to the first axis; and sealing the back seal, thereby separating the second part from the second part. creating an open-ended hollow structure across the edge of the first portion. Method for making a storage bag as described in Section 33. 37. forming the second seal on the removable closure lace; two spaced apart parallel lines parallel to the second axis and coextensive with said first portion only; 34. The method of claim 33, comprising forming a seal. 38. The step of forming the first and second seals includes impregnating the film layer. 38. The method of claim 37, comprising the step of las heating. 39. The step of forming the first and second seals includes applying a resistance to the film layer. 38. The method of claim 37, comprising the step of heating. 40. The perforation line connects the removable closure lace and an adjacent second seal. forming a boundary between the first and second regions and forming the first seal; forming a circumferential seal with the first portion and the second portion in a sealing area of 2; A method for making a storage bag according to claim 33. 41. The step of forming the first and second seals includes impregnating the film layer. 41. The method according to claim 40, comprising the step of las heating. 42. The step of forming the first and second seals includes applying a resistance to the film layer. 41. The method of claim 40, comprising the step of heating. 43. forming the film into a structure comprising: i. Said fillet in the form of a sheet wrapping the lum around the cylinder; ll. The edge of the film is connected to the first iii. a first part separated from said second part; the first axis transverses the edge portion of the part and also creates the open-ended hollow structure; sealing the edge to a back seam parallel to the The perforation and cutting steps are performed substantially simultaneously, and the second forming a loop on the removable closure lace parallel to the second axis; forming two spaced apart parallel seals coextensive with said first portion only; 34. The method according to claim 33, comprising: 44. The step of forming the first and second seals includes impregnating the film layer. 44. The method according to claim 43, comprising the step of las heating. 45. The step of forming the first and second seals includes applying a resistance to the film layer. 44. The method of claim 43, comprising the step of heating. 46. The perforation line connects the removable closure lace and an adjacent second seal. forming a boundary between the first seal and the second seal; forming a seal in the roll area that extends with the first portion and the second portion; A method of forming a storage bag according to claim 43. 47. The step of forming the first seal and the second seal includes forming a film layer. 47. The method of claim 46, comprising the step of impulse heating. 48. The step of forming the first seal and the second seal includes forming a film layer. 48. The method of claim 47, comprising the step of resistive heating. 49. lying along a first axis and made of a sealable elastic polymer film; from a continuous cylinder containing the contents pouch and a molded piece for re-closing each bag. 1. An apparatus for forming a storage bag comprising:A. said continuous said first axis to form an edge portion on a coextensive film wall portion of the cylinder. clamping means for clamping a portion of the continuous cylinder along a transverse second axis; and the edge portion is connected to the second storage bag to form a border between successive storage bags. having a first portion and a second portion disposed along the axis of the B. a perforation at the edge portion along a perforation line parallel to the second axis; C. perforation means for entering the room wall; the film wall along the second axis cutting at the edge along a cutting line parallel to and spaced apart from the second axis; A removable closure string is made at the edge between the perforation line and the cutting line, and cutting means for forming an abutting first sealing region; D. parallel to the second axis and coextensive with the first portion and the second portion; forming a first seal between the film walls along a line in the first sealing area of the E. a first sealing means for; parallel to the second axis and parallel to the first axis; between the film walls along lines within said removable closure laces only coextensive with parts of forming a second seal on the first portion, forming a tail on the first portion, and breaking the loop by delamination. a second sealing means for forming the second portion without a damaging film structure; equipment with 50. The holding means has a third axis that intersects the first axis and the second axis. a facing first seal mounted for relative movement along the a first sealing jaw means and a second sealing jaw means; each has spaced laterally facing gripping means, the gripping means being an edge portion parallel to said second axis for supporting said gripping means; 50. An apparatus for forming a storage bag according to claim 49. 51. One of the sealing jaw means holds the gripping means against the sealing jaw means. in front of said one sealing jaw means; The gripping means is displaced during the gripping operation, and the biasing means exerts a gripping force. 51. An apparatus for forming a storage bag according to item 50. 52. The first sealing means and the second sealing means are aligned with the second axis. a plurality of spaced apart heating filaments arranged parallel to the seal; one of the jaw means for supporting said filament, said The other of the jaw means for the film is used for placing the film against said filament. It has a filament clamping means, and the filament clamping means holds the filament in place. A limited reciprocating motion is applied to the supporting sealing jaw means in order to exert a clamping force against the biased on said supporting sealing jaw means such that said device further 51, further comprising means for directing current pulses to said filament. Apparatus for forming the storage bag described. 53. The second sealing means is formed on a portion of the filament coextensive with the loop. One of the filaments has an insulator that is 53. An apparatus for forming a storage bag according to claim 52, which prevents transmission. 54. The first sealing means is parallel to the second axis and located at a second position of the edge portion. a spaced first filament and a second filament coextensive with the first and second portions; the sealing jaw means having a filament attached to the removable closure string; said first sealing area and said second sealing area disposed on opposite sides with respect to said sealing area; a first uninsulated filament and a second uninsulated filament in a row; and means for supporting the non-insulated filament and the non-insulated filament. Claim 53, wherein the partially insulated filament is simultaneously pulsed. Apparatus for forming the storage bag described. 55. the first sealing means being parallel to the second axis and of the edge portion; a spaced first heating filament coextensive with the first portion and the second portion; a second heated filament, the sealing jaw means being attached to the gripping means; It has means for supporting adjacent uninsulated filaments and has a content port. as claimed in claim 53, forming a lateral seal at the edge of the edge portion adjacent to the reach. A device for forming storage bags. 56. Perforation blade means and cutting blade in which the perforation means and cutting means reciprocate each having means, one of said sealing jaw means sealing said blade means of the other. The perforated blade means and said other sealing jaw means supporting said perforation blade means and said other sealing jaw means; Claim 55, having a recess for receiving each of the cutting blade means. Equipment for forming storage bags. 57. each sealing jaw means transverse to said first axis and said second axis; one of said sealing jaw means is movable along a third axis of said sealing jaw means; The gripping means applies pressure for clamping the film wall portion to the opposing gripping means. Apparatus for forming a storage bag according to claim 50, comprising collapsible means. . 58. Each of the first and second sealing means includes a first sealing means extending parallel to the second axis. one and a second facing sealing fins including means, wherein said first and second facing sealing fins Each of the sealing fins means the first and second sealing fins and a sealing jaw body portion for supporting the first and second shafts, respectively. Each of the jaw body portions for the tool may be used together with the gripping means or independently of the gripping means. An apparatus for forming a storage bag according to claim 57, which can be moved upright. Place. 59. The first sealing jaw body includes a first sealing jaw body and a first sealing jaw body. A first sealing fin attached to the body of the sealing jaw increases the temperature of the means. 59. The storage bag according to claim 58, further comprising heating means for equipment for. 60. Each of the sealing fins of the first sealing means is connected to a content port. a first axis extending parallel to the second axis to form a seal across the storage bag at the first axis; forming a storage bag according to claim 59, which is coextensive with the first and second parts; device for 61. Each of the sealing fingers, of which the second fin is a means, is connected to the first portion. and each of said sealing jaw body portions is coextensive with a second portion. Claims supporting the insulating insert means as an extension of the second sealing means of the An apparatus for forming a storage bag according to paragraph 60. 62. The perforation and cutting means is a reciprocating perforation and cutting blade means. , wherein the first sealing jaw means connects the blade means to the second sealing jaw means. against the sealing jaw body portion in order to advance the sealing jaw toward the sealing jaw means. supporting said perforation and cutting blade means for reciprocating movement; A second sealing jaw means receives each of said perforation and cutting blade means. 62. An apparatus for forming a storage bag according to claim 61, comprising a recess for storing the storage bag. 63. the insulating insert hand attached to the first sealing jaw means; The step is for directing cooling air towards the section of said cutting and perforation means. An apparatus for forming a storage bag according to claim 62, comprising an arrangement of air passages. Place. 64. The insulating insert means is cooled along a second axis towards the first portion. Claim 63, further comprising an air passageway for directing cooling air. Equipment for forming storage bags. 65. The edge portion is parallel to the first sealing area and is associated with a removable closure lace. further comprising a second sealing region located opposite the first sealing region. , the first sealing means is configured to seal the contents pouch of the adjacent storage bag with the first sealing means across the storage bag. parallel to said second axis and for forming a pair of seals. in the first and second sealing regions, respectively. first and second sets of facing surfaces formed in the first and second sealing jaws; 61. The storage bag of claim 60, wherein the first and second fins include means. A device for forming. 66. The second sealing means is coextensive with and spaced apart from the first portion. said first and second seals to form parallel seals on a releasable closure cord. including third and fourth facing sealing jaws on the sealing jaws of said sealing jaw; Each of the jaw body portions has a second portion extending over a portion of the edge portion coextensive with the second portion. The sealing fins of the sealing means support the insulating insert means as an extension of the means. An apparatus for forming a storage bag according to claim 65. 67. The perforation and cutting means is a reciprocating perforation and cutting blade means. , wherein the first sealing jaw means connects the blade means to the second sealing jaw means. against the sealing jaw body portion in order to advance the sealing jaw toward the sealing jaw means. supporting said perforation and cutting blade means for reciprocating movement; A second sealing jaw means receives each of said perforation and cutting blade means. 67. An apparatus for forming a storage bag as claimed in claim 66, including a recess for holding the bag. 68. the insulating insert hand attached to the first sealing jaw means; The step is for directing cooling air towards the section of said cutting and perforation means. 63. An apparatus for forming a storage bag according to claim 62, comprising an array of air passages. 69. The insulating insert means on the first sealing jaw means is arranged on the first sealing jaw means. an air passageway for directing cooling air along a second axis toward part 1; 69. An apparatus for forming a storage bag according to claim 68, further comprising: