JP3034284U - Seat support device - Google Patents

Abstract

(57) [Abstract] [Problem] Even if the pulling out of the sheet body is stopped at a predetermined position,
Make sure that the sheet does not sag. SOLUTION: A cylindrical core 3 in which a long sheet 2 is wound and one end surface of which is made of metal, and a non-rotating support shaft 4 into which the core 3 is rotatably inserted, A non-rotating magnetizing member 11 having a magnetized surface close to the metal end surface 6 of the winding core inserted into the support shaft 4, and a circumferential direction on the inner peripheral surface of the winding core 3 close to the magnetized surface. A projection 10 that fits into a groove formed in a series is provided on the outer peripheral surface of the support shaft 4 so as to be retractable, and a means for urging the projection 10 in the projecting direction is provided on the support shaft 4 to support the sheet body. Device 1 was constructed. The metal end surface 6 of the winding core 3 is drawn on the magnetically radiating surface of the magnetizing member 11, and the winding core 3 receives rotation resistance. Further, this rotation resistance is kept constant by the fitting of the projection 10 and the groove.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a sheet body supporting device that supports a long sheet body in a wound state.

[0002]

[Prior art and its problems]

 Conventionally, such a sheet body supporting device includes a cylindrical winding core and a non-rotating support shaft into which the winding core is rotatably inserted, and has a state in which the sheet body is wound around the winding core. I am trying to support it. In this sheet body supporting device, since the winding core rotates with respect to the support shaft, the wound sheet body is sequentially pulled out from the leading end.

However, in the conventional sheet body supporting device, since the winding core rotates freely with respect to the support shaft, the winding core rotates by inertia for a while even if the withdrawal of the sheet body is stopped at a predetermined position. There was a problem that it would sag.

Therefore, an object of the present invention is to prevent the sheet body from sagging even if the pulling out of the sheet body is stopped at a predetermined position.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention is directed to a cylindrical core having a long sheet wound around one end and made of metal, and a non-rotating core into which the core is rotatably inserted. And a non-rotating magnetizing member having a magnetizing surface close to the metal end surface of the core inserted in the supporting shaft. A protrusion that fits in a groove formed in a series on the outer peripheral surface of the support shaft, and a means for urging the protrusion in the protruding direction is provided on the support shaft, and the seat body supporting device is provided. Configured. It should be noted that the term “proximity” as used herein includes contact.

In the sheet body supporting apparatus according to the present invention, since the metal end surface of the winding core is attracted by the magnetic surface of the adjacent magnetizing member due to the magnetic force, the winding core is prevented from rotating when the sheet body is pulled out. Since resistance is generated, the core does not rotate by inertia even if the pulling out of the sheet body is stopped. Also, when the winding core is inserted into the support shaft, the protrusion of the outer peripheral surface of the support shaft is automatically fitted into the groove on the inner peripheral surface of the winding core by the biasing means, so that the winding core does not shift in the supporting shaft direction. The metal end surface of the core and the magnetized surface are kept at a predetermined interval, so that the rotation resistance of the winding core becomes constant.

[0007]

[Embodiment of the invention]

 An embodiment of a seat body supporting device according to the present invention will be described with reference to the accompanying drawings.

A sheet body supporting device 1 shown in FIG. 1 has a cylindrical winding core 3 around which a long sheet body 2 is wound, a supporting shaft 4 into which the winding core 3 is rotatably inserted, and It comprises a stopper ring 5 which is fixed in a state of being fitted in the support shaft 4 and which regulates the insertion amount of the winding core 3.

As the sheet body 2, a heat-fusible laminate sheet used for drug packaging can be considered.

As shown in FIG. 2, the winding core 3 has a metal sheet 6 adhered to the end surface on the stopper ring 5 side, and the metal sheet 6 faces the end surface of the stopper ring 5 with a predetermined gap. ing. On the inner peripheral surface of the winding core 3, as shown in FIG. 2, a series of grooves 7 are formed in the circumferential direction.

As shown in FIGS. 1 to 3, the support shaft 4 is formed with a housing recess 18 on the outer peripheral surface thereof. A ball 10 that is biased toward is housed. As shown in FIG. 3, since the opening diameter of the accommodation recess 8 is narrowed, the ball 10 can partially protrude while being accommodated in the accommodation recess 8 and the core 3 can be supported. 4 and the groove 7 of the winding core 3 faces the accommodation recess 8 of the support shaft 4, it is automatically fitted into the groove 7 of the winding core 3 by the bias of the spring 9. When the ball 10 is fitted in the groove 7, the ball 10 rolls along the groove 7, so that the winding core 3 freely rotates with respect to the support shaft 4, and even if the ball 3 rotates, the direction of the support shaft 4 The distance between the metal sheet 6 of the winding core 3 and the end surface of the stopper ring 5 is kept constant.

A plurality of magnets 11 are provided on the end surface of the stopper ring 5 facing the metal sheet 6. Since the metal sheets 6 are pulled by the magnets 11, the rotation of the winding core 3 with respect to the support shaft 4 is resisted. Will be added. The magnet 11 may be a permanent magnet or an electromagnet.

The rotation resistance received from the magnet 11 of the winding core 3 is always constant because the metal sheet 6 and the magnet 11 are kept at a predetermined interval by the fitting of the ball 10 and the groove 7.

Therefore, as shown in FIG. 4, even if the sheet body 2 wound around the winding core 3 is pulled out and stopped at a predetermined position, the winding resistance of the winding force of the magnet 11 to the metal sheet 6 causes rotation of the winding core 3. Does not rotate due to inertia, so the sheet body 2 pulled out does not sag.

[0015]

【effect】

 Since the seat body supporting device according to the present invention is configured as described above, it is possible to constantly give a certain rotation resistance to the winding core that is rotatably inserted in the support shaft. When you pull out and stop at a predetermined position, the rotation of the winding core also stops and you can support the sheet body without sagging.

[Brief description of the drawings]

FIG. 1 is a perspective view of a seat supporting device of the present invention.

FIG. 2 is a cross-sectional view of a main part of the sheet body supporting device of FIG.

FIG. 3 is an enlarged sectional view of the outer peripheral surface of the support shaft.

FIG. 4 is a side view of the seat body supporting device of FIG. 1 in use.

[Explanation of symbols]

 1 sheet support device 2 sheet 3 core 4 support shaft 5 stopper ring 6 metal sheet 7 groove 8 accommodating recess 9 spring 10 ball 11 magnet

Claims (3)

[Utility model registration claims] 1. A cylindrical core having a long sheet wound around one end surface of which is formed of metal, a non-rotating support shaft into which the core is rotatably inserted, and the support shaft. A non-rotating magnetizing member having a magnetizing surface close to the metal end surface of the core inserted into the groove, which is formed in a series in the circumferential direction on the inner peripheral surface of the core in a state close to the magnetizing surface. A sheet body supporting device in which a fitting projection is provided on the outer peripheral surface of the support shaft so as to be retractable, and means for biasing the projection in the projecting direction is provided on the support shaft. 2. The sheet support device according to claim 1, wherein the magnetizing member is a stopper ring fitted and fixed to a support shaft and having a magnet on one end surface. 3. The urging means is a spring housed in a housing recess formed on the outer peripheral surface of the support shaft, and the protrusion is a ball housed in the housing recess. The sheet body supporting device according to claim 1.