JPH0547944U - Roll film - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a roll film capable of surely winding a leader paper around a spool. A leader paper 11 wound on the outside of the film is attached to an end portion of a film wound on a supply spool 16 on a payout side, and an insertion portion 11a of the leader paper 11 is placed inside from a fold line 11c. Folded back to
A winding portion 11b located outside the folded portion,
In the roll film F1 on which the wound portion 11b is wound and the seal 12 is adhered to the outer peripheral surface portion 11d of the leader paper 11 exposed from the wound portion 11b, the spool mounting portion 12d of the seal 12 is adhered. A peeling surface 15 that allows the spool mounting portion 12d to be peeled from the seal 12 is formed on the outer peripheral surface portion 11d at a location with an area slightly larger than the area of the spool mounting portion 12d.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a roll film having a leader paper attached to the leading end of the film.

[0002]

[Prior Art]

 Roll film of 120 size or 220 size, which is generally called Brownie film, is provided in a state of being wound around a supply spool 6 as shown in the perspective view of FIG. As shown in the perspective view of FIG. 8, the roll film F wound around the supply spool 6 is composed of a film portion (not shown) and a leader paper 1 attached to the leading end of the film portion. The front portion includes an insertion portion 1a which is inserted into a slit 3a provided in the empty spool 3 for winding, and a winding portion 1b which is exposed from the slit 3a and is wound around the peripheral surface 3b of the empty spool 3. ing. Further, a fold line 1c for bending the insertion portion 1a inward is formed at the boundary between the insertion portion 1a and the wound portion 1b.

Then, as shown in FIG. 7, the roll film F at the time of shipping is wound around the supply spool 6 in a state where the insertion portion 1 a is folded back inward from the bending line 1 c, and the supply spool 6 is wound around the supply spool 6. In order to prevent the wound roll film F from loosening, the winding portion 1b located outside the leader paper 1 portion in which the insertion portion 1a is folded back, and the winding portion 1b being wound and wound from the winding portion 1b. The seal 2 is adhered to the exposed outer peripheral surface portion 1d of the leader paper 1. Therefore, at the time of loading into a camera body (not shown), the seal 2 is peeled off from the winding portion 1b and the outer peripheral surface portion 1d, the leader paper 1 is fed out from the supply spool 6, and the insertion portion is folded back at the folding line 1c. Insert 1a into the slit 3a of the empty spool 3 to wind up the empty spool 3 (rotate the empty spool 3 in the clockwise direction in FIG. 8), and place the leader paper 1 on the peripheral surface 3b of the empty spool 3. I try to wrap it around.

[0004]

[Problems to be solved by the device]

 By the way, a member (not shown) on which the supply spool 6 is mounted usually has a coasting property due to the inertia of the rotation of the supply spool 6 as the film is wound on the empty spool 3 side. In order to prevent the roll film F between the empty spools 3 from bending, a certain friction (friction force) is given, and a certain amount of force is required to pull out the leader paper 1 from the supply spool 6. I need. However, in the above-described conventional roll film F, if the friction given to the mounting member of the supply spool 6 is too large or the curling (warpage) of the leader paper 1 is too strong, the empty spool 3 may be wound up. Accompanying this, the insertion portion 1a inserted into the slit 3a of the empty spool 3 comes out of the slit 3a as the empty spool 3 is wound up, and the empty spool 3 idles so that the leader paper 1 is placed on the peripheral surface 3b of the empty spool 3. In some cases, the film may not be taken up, which may necessitate another film loading operation or miss a photo opportunity. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a roll film capable of reliably winding a leader paper around a spool.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a leader paper wound on the outside of the film attached to the feeding side end of the film wound on a spool, and a leading end of the leader paper, In a roll film in which a seal is adhered to a leader paper portion around which the leading end is wound and exposed from the leading end of the leader paper, in a portion where the leading end of the leader paper is wound. Then, a peeling surface that allows peeling from the seal was formed on the leader paper portion exposed from the tip. Further, according to the present invention, a bending line is formed at the tip of the leader paper for bending the tip of the leader paper and inserting it into the slit of the empty spool. The leader paper on the tip side of the folding line is bent. It is folded back inward from the line and wound, and the seal is adhered between the leader paper portion located outside the folded portion and the leader paper portion around which the folded portion is wound. It may be configured to have. Further, the present invention may be configured such that a perforation for cutting a seal is formed in a portion where the seal is adhered to the peeling surface.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a perspective view showing a roll film according to an embodiment of the present invention. As shown in FIG. 2, the roll film F1 is provided in a state of being wound around a supply spool 16. As shown in the perspective view of FIG. 3, the roll film F1 wound around the supply spool 16 is composed of a film portion (not shown) and a leader paper 11 attached to the leading end of the film portion. The front portion is an insertion portion 11a which is inserted into a slit 13a provided in the empty spool 13 for winding, and a winding portion 1 which is exposed from the slit 13a and is wound around the peripheral surface 13b of the empty spool 13. 1b and. A fold line 11c for bending the insertion portion 11a inward is formed at the boundary between the insertion portion 11a and the winding portion 11b.

As shown in FIG. 2, the roll film F1 at the time of shipping is wound around the supply spool 16 with the insertion portion 11a folded back inward from the bending line 11c, and wound around the supply spool 16. In order to prevent the rolled film F1 from being loosened, the winding portion 11b located outside the leader paper 11 portion in which the insertion portion 11a is folded back and the winding portion 11b are wound and the winding portion 11b. The seal 12 is adhered to the outer peripheral surface portion 11d of the leader paper 11 exposed from the outside. The adhesive surface 14 of the seal 12 is formed by applying a pressure sensitive adhesive, for example. In addition, at the seal 12 portion which is separated from the folding line 11c by a predetermined distance, a seal cutting portion for separating the storage portion 12c left after peeling the seal 12 from the outer peripheral surface portion 11d of the leader paper 11 and the discarding portions 12e, 12f is cut. Perforations 12a and 12b are formed.

On the other hand, the seal 12 of the portion surrounded by the perforation 12b and the bending line 11c located on the front side of the leader paper 11, that is, the outer peripheral surface portion 11d to which the seal 12 of the spool mounting portion 12d is adhered The release surface 15 is formed by applying a material, such as silicon, which can easily release at least the pressure-sensitive adhesive.

In this embodiment, as shown in FIG. 1, the peeling surface 15 is formed with an area slightly larger than the adhesive surface 14 of the spool mounting portion 12d, and as shown in FIG. In the state where the seal 12 is adhered to the outer peripheral surface portion 11d and the outer peripheral surface portion 11d, at least the entire adhesive surface 14 of the spool mounting portion 12d is in contact with the peeling surface 15.

When loading the roll film F1 having the configuration of this embodiment into a camera body or film magazine (not shown), first, the seal 12 is peeled from the outer peripheral surface portion 11d of the leader paper 11 and the leader paper 11 is removed. The state shown in FIG. 3 is obtained by unwinding the insertion portion 11a from the supply spool 16 to widen the folded portion, cutting the seal 12 from the perforations 12a and 12b, and discarding the seal 12 of the discard portions 12e and 12f other than the storage portion 12c. And Subsequently, as shown in FIG. 4 and FIG. 5 which is a view taken along the line EE of FIG. 4 and FIG. Slot 13a, and the adhesive surface 14 of the spool mounting portion 12d is pressed against the peripheral surface 13b of the empty spool 13 to make it adhere, and in this state, the empty spool 13 is rotated clockwise in FIG. The spool 13 is wound up to wind the leader paper 11 around the peripheral surface 13b of the empty spool 13.

As described above, according to the roll film F1 of this embodiment, when the leader paper 11 of the roll film F1 is wound around the empty spool 13, the adhesive surface 14 of the spool mounting portion 12d of the seal 12 is replaced by the empty spool 13. Since it is adhered to the peripheral surface 13b of the empty spool 13, the insertion portion 11a of the leader paper 11 inserted into the slit 13a of the empty spool 13 is prevented from coming off from the slit 13a when the empty spool 13 is wound up. It is prevented that the leader paper 11 is not wound around the empty spool 13 due to the idle rotation of the leader paper 13. Also, for example, when the leader paper 11 having the insertion portion 11a folded back inward from the folding line 11c is wound around the supply spool 16 as in the case of shipping, the spool attachment to be adhered to the peripheral surface 13b of the empty spool 13 is performed. Since the adhesive surface 14 of the portion 12d is entirely in contact with the peeling surface 15, when the seal 12 is peeled from the outer peripheral surface portion 11d of the leader paper 11, the adhesive surface 14 of the spool mounting portion 12d is easily peeled without being damaged. It is possible to prevent the adhesive force of the adhesive surface 14 from deteriorating when the adhesive surface 14 of the spool mounting portion 12d is later adhered to the peripheral surface 13b of the empty spool 13.

In the present embodiment, the peeling surface 15 is formed on the outer peripheral surface portion 11d of the leader paper 11 to which the seal 12 of the spool mounting portion 12d is adhered. However, the peeling surface 15 is formed on the entire outer peripheral surface of the leader paper. Alternatively, the adhesive applied to the adhesive surface 14 is not limited to the pressure-sensitive adhesive described in the examples. Further, the length of the seal 12 on the side of the film (not shown) with respect to the folding line 11c may be the length up to the perforation 12a shown in FIG. 1, as shown in FIG. By doing so, it is possible to omit the perforation 12a and the work of cutting the seal 12 from the perforation 12a and discarding the discarding portion 12e. In addition, in this embodiment, one end of the seal 12 is attached to the winding portion 11b of the leader paper 11 located outside the portion where the insertion portion 11a is folded back inward, but a folding line is formed. If there is no leader paper, part of the seal may be attached to the tip of the leader paper.

[0013]

As described above, according to the present invention, the leading end of the leader paper attached to the feeding side end of the film wound on the spool and wound on the outside of the film, and the leading end of the leader paper. The seal is adhered to the leader paper part exposed from the front part of the leader paper when the part is wound, and the peeling from the seal is possible on the leader paper part exposed from the front part of the leader paper. Since the peeling surface is formed, it is possible to prevent the seal from being damaged and the adhesive strength from deteriorating when peeling the seal from the leader paper portion exposed from the tip of the leader paper. Stick the rear seal to the spool side to prevent the leader paper from coming out from the slit of the spool, and securely wind the leader paper on the spool. You can make it stick. Further, according to the present invention, a fold line for bending the tip of the leader paper and inserting it into the slit of the empty spool is formed at the tip of the leader paper, and the leader paper on the tip side of the fold line is formed. Is folded inward from the folding line and wound, and the seal extends over the leader paper portion located outside the folded portion and the leader paper portion around which the folded portion is wound. It may be configured to be adhered. According to this, the same effect as described above can be obtained even in a roll film which is provided by folding the leading end of the leader paper inward at the folding line when the product is shipped. Further, according to the present invention, the seal may be formed with perforations for cutting the seal in a portion where the seal is adhered to the peeling surface. According to this, when peeling the seal from the leader paper portion exposed from the leading end of the leader paper and adhering it to the spool side, the unnecessary seal portion can be easily cut and discarded.

[Brief description of drawings]

FIG. 1 is a plan view showing a leader paper portion of a roll film according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a roll film according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a state in which a leader paper portion of the roll film shown in FIG. 2 is drawn out from a supply spool.

FIG. 4 is a perspective view showing a state where the insertion portion of the leader paper shown in FIG. 3 is inserted into a slit of an empty spool.

5 is a view taken along the line EE of FIG.

FIG. 6 is a plan view showing a leader paper portion of a roll film according to another embodiment of the present invention.

FIG. 7 is a perspective view showing a conventional roll film.

FIG. 8 is a perspective view showing an operation of winding the leader paper portion of the roll film shown in FIG. 7 around an empty spool.

[Explanation of symbols]

 11 Leader Paper 11a Insertion Part 11b Winding Part 11c Bending Line 11d Peripheral Surface Part (Exposed Part) 12 Seals 12a, 12b Perforations 13 Empty Spool 13a Slit 14 Adhesive Surface 15 Release Surface 16 Supply Spool (Spool) F1 Roll Film

Claims (3)

[Scope of utility model registration request] 1. A leader paper wound on the outside of the film is attached to an end of a film wound on a spool on a feeding side, and a leading end of the leader paper and the leading end are wound. In a roll film in which a seal is adhered to a leader paper portion which is exposed from the front portion of the leader paper, a portion where the front portion of the leader paper is wound and exposed from the front portion. A roll film characterized in that a peeling surface that enables peeling from the seal is formed on the leader paper portion. 2. A leading end of the leader paper is formed with a folding line for folding the leading end of the leader paper and inserting it into the slit of the empty spool, and the leader paper on the tip side of the folding line is the folding line. Is folded back and wound inward, and the seal is adhered to the leader paper portion located outside the folded back portion and the leader paper portion around which the folded back portion is wound. The roll film according to claim 1, wherein: 3. The roll film according to claim 1, wherein a perforation for cutting a seal is formed in a portion where the seal is adhered to the peeling surface.