Claims
- 1. A device for connecting a trailing end of a previously drawn-out web from a first web roll to a leading end portion of a newly drawn-out web from a second web roll comprising:
- substantially vertical guide means for guiding said previously drawn-out web so as to be supplied substantially vertically;
- drawing-out means for drawing out said leading end portion of said web from said second web roll;
- feeding means for guiding and feeding substantially vertically downward said leading end portion of said newly drawn-out web in a vicinity of and along said previously drawn-out web guided substantially vertically by said substantially vertical guide means;
- adhesive tape supplying means for attaching an adhesive tape to said leading end portion of said newly drawn-out web; and
- cutting means for cutting predetermined portions of said webs;
- said adhesive tape supplying means and cutting means being arranged along a side of said substantially vertical guide means;
- said drawing-out means including a drawing-out arm which is rotated in a vertical plane and moved up and down by driving means, said drawing-out arm holding the leading end portion of the newly drawn-out web, then rotating and descending to draw out the leading end portion of the web in a substantially vertical direction such that the leading end portion of the web is in a standby state while being held downward;
- said feeding means comprising:
- a hollow main body;
- an endless suction belt made of an air-permeable material and provided on said hollow main body so as to run substantially vertically downward; and
- negative pressure introducing ports provided on said main body, for applying a negative pressure to an interior of said main body therethrough so that said negative pressure is maintained in the interior of said main body and air is introduced into the interior of said main body, whereby a suction force produced by said negative pressure in the interior of said main body and said air introduced into the interior of said main body works in conjunction to hold said leading end portion of said newly drawn-out web;
- said feeding means being mounted so as to be rotated in a substantially vertical plane by rotating means, and rotating from a substantially horizontally inclined position toward the substantially vertical position by said rotating means such that the feeding means moves toward a side of the leading end portion of the web which is held downward by the drawing-out arm, is brought into tight contact with the leading end portion of the web in substantially parallel relation thereto, and seizes the leading end portion of the web after the leading end portion of the web is released from the drawing-out arm and is suspended in a free state, whereby the leading end portion of the web is transferred to the feeding means.
- 2. The device according to claim 1, wherein a holding plate having a smooth surface is provided in a vicinity of and in parallel with said suction belt, and said holding plate and said belt hold said leading end portion of said newly drawn-out web therebetween.
- 3. A device for connecting a trailing end of a previously drawn-out web from a first web roll to a leading end portion of a newly drawn-out web from a second web roll comprising:
- vertical guide means for guiding said previously drawn-out web so as to run vertically;
- drawing-out means for drawing out said leading end portion of said web from said second web roll;
- feeding means for guiding and feeding vertically downward said leading end portion of said newly drawn-out web in a vicinity of and along said previously drawn-out web guided vertically by said vertical guide means;
- first cutting means for cutting predetermined portions of said webs; and
- adhesive tape supplying means which comprises guiding means for guiding a belt-like compound adhesive tape, comprising a base tape and an adhesive tape of a double-sided surface adhering type attached to said base tape, to said leading end portion of said newly drawn web, second cutting means for cutting only said adhesive tape on said base tape into adhesive pieces having a predetermined length, said second cutting means having a blade-like cutter for cutting said adhesive tape, a spring for urging said blade-like cutter toward said adhesive tape and means for reciprocating the cutter in a direction of a cutting edge of the cutter whereby said adhesive pieces in a state attached to said base tape are brought to a position of said leading end portion of said newly drawn-out web and attached thereto.
- 4. The device according to claim 3, wherein guiding means for guiding said belt-like compound adhesive tape has a roller contacting an adhesive side of said belt-like compound adhesive tape to guide said belt-like compound adhesive tape, and wherein said roller has a plurality of ribs serially arranged on an outer surface of the roller, with tips of said plurality of ribs being sharply formed so as to minimize contact with any area of said adhesive tape guided by said guiding means such that said belt-like compound adhesive tape is prevented from adhering to said roller.
- 5. A device for connecting a trailing end of a previously drawn-out web from a first web roll to a leading end portion of a newly drawn-out web from a second web roll comprising:
- vertical guide means for guiding said previously drawn-out web so as to run vertically;
- drawing-out means for drawing out said leading end portion of said web from said second web roll;
- feeding means for guiding and feeding vertically downward said leading end portion of said newly drawn-out web in a vicinity of and along said previously drawn-out web guided vertically by said vertical guide means;
- adhesive tape supplying means for attaching an adhesive tape to said leading end portion of said newly drawn-out web;
- cutting means for cutting predetermined portions of said webs said cutting means having cutting off means for cutting a portion of said newly drawn-out web between said adhesive tape attached to said newly drawn-out web and an end edge of said leading end portion, such that a useless part of said leading end portion of said newly drawn-out web, such as a part adhering to said adhesive tape fixing the web or a kinked detaching part, is removed; and
- holding members, made of elastic material and each provided on a respective one of said cutting members, for elastically holding said leading end portion, thereby preventing said leading end portion which has been cut from dropping.
- 6. The device according to claim 5, wherein said cutting means has cut means for cutting a portion of said previously drawn-out web behind a portion thereof at which said trailing end portion of said previously drawn-out web is connected to said leading end portion of said newly drawn-out web, with said cut means comprising a cutter disposed close to a running path of said previously drawn-out web and extending crosswise thereof, and pressing members for pressing said trailing end portion of said previously drawn-out web against said cutter so as to cause said cutter to cut said trailing end portion.
Priority Claims (6)
Number |
Date |
Country |
Kind |
3-311383 |
Oct 1991 |
JPX |
|
3-311384 |
Oct 1991 |
JPX |
|
3-311385 |
Oct 1991 |
JPX |
|
3-311386 |
Oct 1991 |
JPX |
|
3-311390 |
Oct 1991 |
JPX |
|
3-311391 |
Oct 1991 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 07/969,385 filed on Oct. 30, 1992, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (9)
Number |
Date |
Country |
0299181 |
Jan 1989 |
EPX |
1235335 |
Mar 1967 |
DEX |
63-165258 |
Jul 1988 |
JPX |
63-162434 |
Jul 1988 |
JPX |
218249 |
Feb 1990 |
JPX |
2286549 |
Nov 1990 |
JPX |
2091224 |
Jul 1982 |
GBX |
2114101 |
Aug 1983 |
GBX |
2167047 |
May 1986 |
GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
969385 |
Oct 1992 |
|