JP2003226449A - Roll holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow easy mounting/demounting of a roll without removing the roll even in installation on a wall face or a ceiling. <P>SOLUTION: This roll holder comprises a core rod 2 for rotatably supporting the roll 1, a movable frame 3 for turning the core rod 2 fixed at one end and thereby lifting up the core rod 2 at the other end, a fixed frame 4 turnably connected with the movable frame 3 for detachably supporting the core rod 2 at the other end, locking means for locking the core rod 2 supported by the fixed frame 4 without being removed or for unlocking it, thrusting means for thrusting the roll 1 at one end to the axial direction, and inertial rotation preventing means for making press contact with the peripheral face of the roll. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll holder for winding a vinyl sheet or a plastic bag into a roll and holding the roll in a rotatable manner. 2. Description of the Related Art As shown in FIG. 9, a conventional roll holder is formed on a cylindrical core of a roll 34 around which a long vinyl sheet or a plastic bag is wound so as to be longer than the width of the roll. The core rod 31 is inserted into the U-shaped hook groove 33 of the frame 32, and the vinyl sheet or the plastic bag can be pulled out. I have to. A known configuration is such that a presser foot 35 that presses the circumferential surface of the roll 34 to prevent inertial rotation of the roll 34 is urged in a direction of pressing the frame 34 through a spring 36. [0003] However, in the conventional roll holder, both ends of the core rod 31
Since the roll 34 remains unstable and is not provided with a locking mechanism because it is still engaged in the character-shaped locking groove 33, the core rod 31 is easily released. For this reason, it has been difficult to install the product on the wall or ceiling of a product display shelf or the like. Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a roll holder that does not come off even if it is installed on a wall or a ceiling, and that can be easily loaded and unloaded. I do. [0005] In order to achieve the above object, a roll holder according to the present invention is characterized in that a roll formed by winding a vinyl sheet or a vinyl bag into a roll is rotatable. A pair of holding plates are arranged on both end surfaces of the roll, and a core rod inserted through the core of the roll and rotatably supported is provided between the holding plates, A movable frame capable of lifting one end of the core rod while fixing one end of the core rod and allowing the other end of the core rod to rotate up and down; and A locking means for detachably supporting the other end of the roll; locking means for locking or releasing the supported core rod so as not to come off from the fixed frame; Pressing means for pressing in the direction of It is characterized in that the peripheral surface is provided with inertial rotation preventing means that is pressed against. According to the first aspect, one of the pair of side frames is configured as a rotatable movable frame, and one end of the core rod is fixed to the movable frame. Can be lifted up. This makes it easier to mount the roll on the core rod. Further, by providing the locking means for locking the other end of the core rod engaged with the support portion of the fixed frame and releasing the locking, there is no possibility that the core rod comes off the roll holder during use. Thus, for example, the roll holder can be installed on a wall surface or a lower surface of a ceiling. Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 relate to an embodiment of the present invention, and FIG. 1 is a perspective view showing an entire roll holder.
2 is a top view showing a connecting portion between the fixed frame and the movable frame, FIG. 3 is a front view showing an attachment structure of the core rod to the movable frame and a behavior of the movable frame, and FIG. 4 is a side view showing a core rod support structure of the fixed frame. FIG. 5 is a top view of the same, and FIGS. 6 to 8 are views showing an example of installation of a roll holder. [0008] The roll holder of the present invention comprises a winding roll 1
Rod 2 that rotatably holds the core rod 2, a movable frame 3 that lifts up the other end of the core rod 2 by fixing one end of the core rod 2 and pivotally connects the movable frame 3. A fixed frame 4 movably and detachably supporting the other end of the core rod 2,
And a pressing means for pressing one end of the roll 1 in the axial direction, and a pressing means for pressing the one end of the roll 1 in the axial direction. And inertial rotation preventing means. The fixed frame 4 is formed in an L shape, and the base 7 of the L shape is formed.
The movable frame 3 is rotatably connected to the end via a connecting bolt 8 as shown in FIG. The fixed frame 4 and the movable frame 3 form a U-shape. Movable frame 3
On the side, a positioning projection 3a is formed.
Engages with the positioning recesses 4a formed at the corresponding positions on the fixed frame 4 side, whereby the rotation of the movable frame 3 is restored and the U-shape is maintained. With the core rod 2 listed, the projection 3a
Moves to the side surface of the fixed frame 4 to maintain the list-up state, thereby facilitating the loading of the roll 1. After the loading, the roll 1 is automatically set to a predetermined position by the weight of the roll 1. As shown in FIG. 3, the movable frame 3 has one end of the core rod 2 in contact with the inside of a U-shaped parallel surface 9 and is fixed by bolts 10 from outside with the parallel surface 9 interposed therebetween. I have. Accordingly, in this state, the other end of the core rod 2 is lifted obliquely upward as shown by a two-dot chain line by rotating the movable frame 3 with the lower connection bolt 8 as the center. As shown in FIG. 4, a U-shaped support groove 12 for supporting the end of the core rod 2 is formed in the upper edge of the U-shaped parallel surface 11 of the fixed frame 4. Further, a stopper 6 is provided on the side of the U-shaped support groove 12 as a locking means for preventing the core rod supported in the U-shaped support groove 12 from coming off, and is rotatable around the screw shaft 13 as a center. . The stopper 6 has a locking projection 14 formed at the tip, and locks the core rod 2 with the locking projection 14 at a position rotated in the horizontal direction to prevent the stopper 6 from coming off the U-shaped support groove 12. . When the stopper 6 is rotated in the vertical direction, the locking projection 14 moves to the lower position to release the locking, so that the core rod can be detached upward from the U-shaped support groove 12. A fixed frame 4 is provided above the rear end of the stopper 6.
The handle 15 is bent toward the outside of the frame. The handle 15 facilitates the rotation of the stopper 6 by manual operation, and contacts the upper edge of the fixed frame 4 to maintain the horizontal position of the stopper 6. It serves to keep the core rod 2 locked. As shown in FIG. 3, a coil spring 16 is provided at the base end of the core rod 2 fixed to the movable frame 3 as a pressing means for pressing the end surface of the roll 1 in the axial direction, that is, the U-shaped opposed surface 11 side. And a washer 17 is fitted to the core rod 2. A roll 1 pressed by pressing means is provided on the inner surface of the fixed frame 4 side.
Is provided with a slide 18 for facilitating sliding of the other end. Further, a screw shaft 19 is fixed to the open end of the core rod 2 as shown in FIGS. This screw shaft 1
A sleeve 20 is fitted to the shaft portion 9, and a space between the end surface of the core rod 2 and the head of the screw shaft 19 is maintained by the sleeve 20, and this portion is supported by the U-shaped support groove 12. . On the other hand, on the bottom surface 7 of the fixed frame 4 forming a U-shape, as a means for preventing inertial rotation of the roll 1 by pressing against the circumferential surface of the roll 1, a presser 21 is provided with a torsion coil spring 22. And is urged in the direction of pressing the circumferential surface of the roll 1 through. Further, the bottom surface 7 is provided with a plurality of mounting holes 23 for installing a roll holder, for example, on a wall surface or the like. When the roll holder described above is used, first, the stopper 6 is rotated in the vertical direction to release the locking of the end of the core rod 2 supported on the fixed frame 4 side. Further, the movable frame 3 is rotated to lift the open end of the core rod 2 obliquely upward, and the core 1 holds the roll 1. Next, the roll 1 is pressed to the movable frame 3 side, and the open end of the core rod 2 is fixed to the fixed
Into the U-shaped support groove 12. As a result, the open end of the core rod 2 is supported in the U-shaped support groove 12 of the fixed frame 4, and in this state, the stopper 6 of the stopper 6 is tilted horizontally so that the locking projection 14 of the stopper 6 The opening is closed, and the core rod 2 is locked so that it does not come off. With this, the installation of the roll 1 is completed and the roll 1 can be used. As described above, in the roll holder having this structure, the core rod 2 is locked by the stopper 6 to prevent the core rod 2 from falling off. Therefore, for example, as shown in FIG. Can be. Further, as shown in FIG. 7, even when the roll is fixed to the lower surface of the top plate 26 as shown in FIG. 8, the roll does not fall off. According to the present invention, since the movable frame is rotatably connected to the fixed frame 4 and one end of the core rod is fixed to the movable frame, the movable frame can be rotated. Thus, the other end of the core rod can be lifted up, and the roll can be easily mounted. The open end of the core rod on which the roll is mounted is supported by the support of the fixed frame and can be locked by locking means to prevent the core rod from coming off. There is no fear of falling off. This makes it possible to install the roll holder on the wall surface or the lower surface of the top plate. Further, the roll is pressed in the axial direction by the pressing means, and the circumferential surface thereof is pressed by the inertia rotation preventing means. It becomes possible to cut by length.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an entire roll holder according to an embodiment of the present invention. FIG. 2 is a top view showing a connecting portion between a fixed frame and a movable frame. FIG. 3 is a front view showing an attachment structure of a core rod to a movable frame and a behavior of the movable frame. FIG. 4 is a side view showing a core rod support structure for a fixed frame. FIG. 5 is a top view of the same. FIG. 6 is a diagram showing an example of installation of a roll holder. FIG. 7 is a diagram showing an example of installation of a roll holder. FIG. 8 is a view showing an example of installation of a roll holder. FIG. 9 is an explanatory view of a conventional roll holder. [Description of Signs] 1 ... Roll 2 ... Core rod 3 ... Movable frame 4 ... Fixed frame 5 ... Support part 6 ... Stopper 7 ... L-shaped bottom surface 8 ... Connecting bolt 9 ... Parallel surface on the movable frame side 10 ... Bolt 11 ... Parallel surface 12 on the fixed frame side 12 U-shaped support groove 13 Screw shaft 14 Locking protrusion 15 Handle 16 Coil spring 17 Washer 18 Slide 20 Sleeve 21 Holder 22 Torsion coil spring 23 Mounting hole 24 Stand 25 ... Seat 26 ... Top plate

Claims (1)

Claims: 1. A roll holder for rotatably holding a wound roll obtained by winding a vinyl sheet or a vinyl bag into a roll, wherein a pair of holding plates are disposed on both end surfaces of the roll. A core rod is inserted between the holding plates and rotatably supported by being inserted into the core of the roll, and one of the holding plates fixes one end of the core rod and is rotatable up and down. A movable frame capable of lifting up the other end of the rod, and a fixed frame that is rotatably connected to the movable frame and supports the other end of the core bar in a detachable manner. Locking means for locking or releasing the supported core rod so as not to come off, and pressing means for pressing one end of the roll in the axial direction are provided, and are pressed against the circumferential surface of the roll. Roll holder characterized by having inertial rotation preventing means