JPH0317749Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a roll paper holder that allows roll paper to be easily attached and detached without removing the roll paper support shaft.

``Prior art'' Utility Model Publication No. 53-36445 has a structure in which opposing spherical holding protrusions are compressed by an elastic body so that they face each other, and Utility Model Application Publication No. 57-38077 and Utility Model Application Publication No. 57-57- 40877 is characterized in that an elastic body is attached above the spindle to come into contact with the spindle for supporting roll paper and return the spindle downward when the spindle rotates upward.

``Problems to be solved by the invention'' There is a need for a holder that has a simpler structure and can be manufactured at a lower cost than conventional techniques, and that allows for easy attachment and detachment of roll paper.

"Means for Solving the Problem" The roll paper holder according to this invention has a protruding shaft having a non-circular cross section such as an ellipse or an egg shape, which protrudes outward relative to the base of the paper roll support shaft. is characterized in that the tips of two paper roll support shafts, which are mounted so as to be rotatable up and down and are sandwiched between elastic bearings made of two opposing surfaces provided on the holder body, are opposed to each other.

"Operation" The two surfaces of the elastic bearing constantly press and hold the protruding shaft, and when the roll paper is pushed from below to the top of the paper roll support shaft, the long axis of the cross section of the protruding shaft rises, causing the protruding The shaft pushes the elastic bearings apart and the paper roll support shaft rotates upward.

When the upper end of the roll paper core tube passes the tip of the paper support shaft, the pressure that pushes the paper support shaft upward is gone, so the elastic bearing acts to return (tilt down) the long axis of the protruding shaft due to its elasticity. Therefore, the paper roll support shaft rotates downward, and the tip of the paper roll support shaft is inserted into the core tube of the roll paper to hold the roll paper.

To remove the used paper core tube,
When the core tube is lifted, the paper supporting shaft is lifted by the lower end of the core tube, so the protruding shaft pushes out the elastic bearing and rotates, and the tip part comes out of the core tube, so that the purpose can be achieved.

When the core tube is removed, there is no pressure to rotate the paper roll support shaft upwards, so the elastic bearing acts to return (tilt down) the long axis of the protruding shaft due to its elasticity, so the paper roll support shaft is rotated downward. Rotate to.

In order to remove the attached roll paper for some reason, the roll paper support shaft can be rotated in the same manner as described above.

If the protruding shaft is provided so that the major axis of the cross section intersects with the horizontal plane of the wrapping paper support shaft at an angle Q, then
When the paper roll support shaft rotates upward, it does not rotate any further after it becomes vertical.

"Example" This invention will be explained based on an embodiment shown in the drawings.

In the figure, 1 is a main body, 2 is a wrapping paper support shaft, 3 is an elastic bearing, and 4 is a protruding shaft of the wrapping paper support shaft, all of which are made of metal or synthetic resin. The main body 1 has two sleeve parts 1a, 1a at both ends with an inner width slightly larger than the width of the roll paper, and these sleeve parts 1a, 1.
It consists of an inner frame 1b that fits into the sleeve part 1a, 1
When the inner frame 1b is fitted to the inner frame 1b, a space 5, 5 is provided between the tip of the inner frame 1b and the sleeve parts 1a, 1a to enable mounting and rotation of the rolling paper support shaft 2, which will be described later. establish.

The wrapping paper support shaft 2 has a protruding shaft 4 protruding outward in a relative manner near the base (opening edge) of a flat bottomed cylinder. If the bottom of the wrapping paper support shaft 2 is made thicker, the bottom portion becomes heavier and the downward rotation of the wrapping paper support shaft is made smoother. Further, the wrapping paper support shaft 2 may be solid instead of cylindrical, and there is no problem even if it is cylindrical or other shape instead of flat. The protruding shaft 4 is
It has a non-circular cross section such as an ellipse or an egg shape, and is protruded from the wrapping paper support shaft 2 so that the major axis l of the cross section intersects with the horizontal plane h of the wrapping paper support shaft 2 at an angle Q. .

The elastic bearing 3 has a slightly flat C-shaped cross section by bending an elastic plate-like body, and has an interval 3a parallel to both ends of the bent plate-like body. Thus, the elastic bearings 3 are located opposite to each other at positions facing the space 5 of the sleeve portion 1a and the inner frame 1b of the main body 1.
Provided by gluing, welding, or integral molding. in this case,
As shown in FIG. 4, the elastic bearing 3 has both edges in a C-shape, and one of the edges is fixed to the sleeve portion 1a and the inner frame 1b, or as shown in FIG. It can be fixed with a flat surface 3b cut into the hole, or a notch 3c can be formed on one edge as shown in FIG.
Various shapes and fixing methods are conceivable, such as providing the cutout portion 3c and fixing it at the edge on the side having the notch portion 3c.

Further, the elastic bearing 3 may have a U-shaped cross section as shown in FIG. In this case, it is preferable to provide opposing flanges 3d at the tips of the two opposing surfaces.

Furthermore, the elastic bearing 3 may have two parallel surfaces protruding from the sleeve portion 1a and the inner frame 1b of the main body 1. In this case as well, it is preferable to provide opposing flanges 3d at the tips of the two opposing surfaces.

Regardless of the shape of the elastic bearing 3, the sleeve portion 1
a and the inner frame 1b may be integrally formed.

To assemble these members, first insert one protruding shaft 4 of the paper roll support shaft 2 into the elastic bearing 3 provided on the sleeve portion 1a, then fit the inner frame 1b into the sleeve portion 1a, and at the same time insert the other protruding shaft 4 into the elastic bearing 3 provided on the sleeve portion 1a. Insert the shaft 4 into the other elastic bearing 3 provided in the inner frame 1b, and press the two sides of the elastic bearing 3.
The protruding shaft 4 is rotatably held.

``Effects of the invention'' It has a simple structure, is easy to assemble and manufacture, and allows you to easily install and remove roll paper and remove the used roll core tube with one hand.

[Brief explanation of the drawing]

What is shown in the drawings shows an embodiment of the roll paper holder according to this invention, and FIGS. 1 and 2 are schematic cross-sectional views showing the engagement relationship between one main body sleeve, an elastic bearing, and a protruding shaft. Figure 3 is a perspective view of the paper roll support shaft, Figures 4 to 8 are perspective views of the elastic bearing, and Figure 9 is a perspective view of the paper roll support shaft.
The figure is a perspective view of the roll paper holder. 1...Main body, 1a...Sleeve portion, 1b...Inner frame, 2
... Rolling paper support shaft, 3 ... Elastic bearing, 3a ... Spacing,
4...protruding axis, 5...space part.

Claims (1)

[Claims for Utility Model Registration] 1. The two rolling paper supporting shafts protrude outward relative to each other in close proximity to their respective bases, and each has a protruding shaft having a non-circular cross section such as an ellipse or an egg shape. , the protruding shaft is held by an elastic bearing provided on the holder body and made up of two opposing surfaces, so that the protruding shaft is mounted on the holder body so as to be able to rotate up and down with the tips facing each other; When the tip is pushed upward from below, the major diameter line of the cross section of the protruding shaft rises and pushes the elastic bearing to expand, causing the paper support shaft to rotate upward, and the paper support shaft is released from the upward pressure. and a roll paper holder characterized in that the elastic bearing allows the long diameter line of the protruding shaft to be tilted down by elasticity, thereby making it possible to rotate the paper roll support shaft downward. 2. The roll paper holder according to claim 1, wherein the elastic bearing consisting of two opposing surfaces has a substantially C-shaped cross section. 3. The roll paper holder according to claim 1, wherein the elastic bearing consisting of two opposing surfaces has a U-shaped cross section.