JPH0337500Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a toilet paper roll core rod that rotatably supports the toilet paper roll.

``Prior art'' Conventionally, the core rod of this type of toilet paper roll was a type that also served as an air freshener container (1983).
-51751, etc.) have been proposed.
Therefore, a toilet paper roll fixture described in Japanese Utility Model Publication No. 57-38076 is relatively close to the structure of the present invention.

Therefore, this fixture has a flange with a diameter larger than the diameter of the paper cylinder of the toilet paper roll on one side, a shaft protruding from the center of the other side, and the flange side is open and the shaft side is closed. The holder has a bottomed cylindrical holder shaft with an insertion hole in the axial direction, and a grooved shaft with a shaft protruding from the center of one side and a wide annular groove on the circumferential surface. A spring is interposed in the insertion hole of the shaft, and the grooved shaft is inserted into the insertion hole of the holder shaft with the shaft portion of the grooved shaft facing outward and the opposite side of the shaft portion facing the spring, and the holder A screw screwed into the peripheral surface of the shaft faces into the annular groove of the grooved shaft.

However, in the case of the fixture with the above configuration,
In order to prevent the grooved shaft that extends and contracts from the holder shaft from slipping out from the holder shaft, a screw must be screwed into the screw hole formed in the holder shaft.
The drawback was that it was difficult to assemble. In addition, most of this attachment and the above-mentioned air freshener storage type can only be used with paper tubes that are attached to the center hole of toilet paper rolls; The drawback was that it could not be used with toilet paper rolls that had a small diameter center hole.

"Problems to be Solved by the Present Invention" In view of the above-mentioned drawbacks of the conventional technology, the present invention is designed to facilitate assembly of each member and to have a center hole with a small diameter regardless of whether or not it has the paper tube mentioned above. It can also be used for other types of toilet paper rolls, and each part is easy to mold, and furthermore,
To obtain a core rod for a toilet paper roll which can properly accommodate a spring member in an insertion hole of a holder shaft without being inclined to any extent, thereby preventing deformation of the spring member.

``Means to solve the problem'' The core rod of the toilet paper roll of this invention is
A holder shaft body that has a protruding end on one side and an insertion hole formed in the axial direction on the other side, a spring member that is internally installed in this holder shaft body, and a telescopic shaft that presses this spring member. It is characterized by comprising a fixed cylinder that is fitted into the insertion hole in a tight fit state and abuts against a stopper portion formed at the insertion end of the telescoping shaft to prevent the telescoping shaft from coming off.

"Embodiments of the present invention" The present invention will be described in detail below with reference to embodiments shown in the drawings.

In one embodiment shown in FIGS. 1 to 4,
X refers to a toilet paper roll that is generally elongated and rod-shaped and can be used for both toilet paper rolls that have a paper tube made of cardboard and toilet paper rolls that do not have a paper tube and have a small center hole. It is the core rod.

That is, 1 has a protruding shaft 2 at one end that is supported in a bearing recess formed in a side plate of a toilet paper roll fixture main body (not shown), and a shaft center on the other side as shown in FIG. The holder shaft 1 is a holder shaft main body with an insertion hole 3 formed in the direction, and in this embodiment, for convenience of molding, the holder shaft 1 is divided into two parts: a fitted cylinder holder shaft 1a having the protruding shaft 2 at the end; It consists of a fitted cylinder holder shaft 1a and a fitting cylinder holder shaft 1b having a cylindrical insertion fitting part 4 at the split end.

Reference numeral 5 denotes a spring member such as a coil spring that is inserted into the insertion hole 3 of the holder shaft main body 1 from one direction. It is supported by a seat 6 formed at the boundary between the two.

Reference numeral 7 denotes a telescoping shaft whose one side is inserted into the insertion hole 4 of the fitting cylinder holder shaft 1b and presses the spring member 5. The insertion end of the telescoping shaft 7 has a step-shaped stopper portion 7a in the circumferential direction. On the other hand, a protruding shaft 7b similar to the protruding shaft 2 provided at one end of the holder shaft body 1 is formed at the outer end.

Reference numeral 8 denotes a fixed cylinder which is loosely fitted onto the telescopic shaft 7, is tightly fitted into the insertion hole 3, and comes into contact with the stopper portion 7a to prevent the telescopic shaft 7 from coming off. A flange portion 8a having approximately the same diameter as the holder shaft body 1 is formed at the outer end of the fixed cylinder 8.

When combining the core rods X having the above configuration, first, the insertion fitting portion 4 of the fitting cylinder holder shaft 1b is forcibly inserted into the cylinder holder shaft 1a to be fitted and integrally connected. Next, the spring member 5 is attached to the fitting tube holder shaft 1.
Insert into the insertion hole 3 in b from the direction of arrow A shown in FIG. After that, the fixed cylinder 8 is fitted to the telescopic shaft 7,
While pinching the flange 8a of the fixed cylinder 8 with your fingers, insert the stopper part 7a of the telescopic shaft 7 into the insertion hole 3, and insert the fixed cylinder 8 into the inner peripheral wall formed by the insertion hole 3 of the fitting cylinder holder shaft 1b. Forcibly fit it into the fitting cylinder holder shaft 1b so that it is tightly fitted. When a finger is placed on the protruding shaft 7b of the telescopic shaft 7 and the telescopic shaft 7 is pressed in the direction of arrow A, the telescopic shaft 7 expands and contracts or collapses into the fitting cylinder holder shaft against the spring force of the spring member 5. do.

"Different Embodiments of the Present Invention" Next, different embodiments of the present invention shown in FIGS. 5 to 9 will be described. In the description of these embodiments, the same parts as in the previous embodiments are denoted by the same reference numerals, and redundant explanations will be omitted.

In the embodiment shown in FIGS. 5 to 8, the main difference from the previous embodiment is that the fixed tube 8A has a receiving flange at the outer end having a diameter larger than that of a general paper tube (not shown) for the toilet paper roll. 10, the shape of this receiving flange 10 is an ellipse in the embodiment, but the shape is not particularly limited. in short,
It is sufficient that the flange has a shape that can restrict the shifting of the toilet paper roll.

The main difference between the embodiment shown in FIG. 9 and the previous embodiment is that the holder shaft body 1B is not divided into two parts, and the fixed cylinder 8B is made of the same material as in the embodiment shown in FIG. .

Even in these different embodiments, the same effects as in the above embodiment can be obtained.

"Effects of the Present Invention" As is clear from the above explanation, the present invention has the following effects.

(1) It is easy to combine each member.

That is, the core rod can be formed simply by forcibly inserting the fixed cylinder fitted onto the telescopic shaft into the insertion hole of the holder shaft body.

(2) Since each member, that is, the spring member, the telescopic shaft, and the fixed tube, are inserted into the insertion hole of the holder shaft body from one direction, even if the members are separate, they can be easily assembled in sequence.

(3) Since the stopper part is formed at the insertion end of the telescoping shaft, the telescoping shaft comes into contact with the fitting end surface of the fixed cylinder and does not come off from the holder shaft body.

(4) The spring member installed in the insertion hole of the holder shaft body does not deform because its end portion is supported by the seat formed in the insertion hole without being tilted properly.

(5) Since the holder shaft body is rod-shaped as a whole, it can also be used for toilet paper rolls with a small diameter center hole that does not have a paper tube. In addition,
When a receiving flange is formed at the outer end of the fixed tube, it is possible to not only prevent the toilet paper roll from shifting to one side, but also to use it for toilet paper rolls having paper tubes.

(6) In the case of an example in which the holder shaft body is divided into two parts,
It can be manufactured at low cost due to molding.

[Brief explanation of drawings]

Figure 1 is a front view showing one embodiment of the present invention;
The figures are a cross-sectional view taken along the line -- in Fig. 1, Fig. 3 is a left side view of Fig. 1, Fig. 4 is a right side view of Fig. 1, and Figs. 5 to 9 show different embodiments of the present invention. In each explanatory diagram shown, Fig. 5 is a front view, and Fig. 6 is a - of Fig. 5.
7 is a left side view of FIG. 5, FIG. 8 is a right side view of FIG. 5, and FIG. 9 is a sectional view similar to FIG. 2 showing a second different embodiment. . 1, 1A, 1B...Holder shaft body, 2, 7b
...Protruding shaft, 3...Insertion hole, 5...Spring member, 7
... Telescopic shaft, 7a ... Stopper part, 8, 8A,
8B...Fixed tube, 8a...Flange part, 10...
Uketsuba.

Claims (1)

[Claims for Utility Model Registration] 1. A holder shaft body having a protruding end on one end and an insertion hole formed in the axial direction on the other side, a spring member installed in the holder shaft body, and A fixed tube that fits onto the telescopic shaft that presses the spring member, tightly fits into the insertion hole, and comes into contact with a stopper formed at the insertion end of the telescopic shaft to prevent the telescopic shaft from coming off. A toilet paper roll core consisting of. 2. The holder shaft main body is divided into two parts, and consists of a mating cylinder holder shaft having a protruding shaft at the end, and a mating cylinder holder shaft having an insertion fitting part that fits with the mating cylinder holder shaft. A core rod for a toilet paper roll according to claim 1 of the utility model registration claim, characterized in that: 3. Utility model registration claims 1 or 2, characterized in that the outer end of the fixed cylinder that prevents the telescopic shaft from coming off is provided with a flange that prevents the toilet paper roll from shifting to one side. Core rod for toilet paper roll as described in section. 4. The toilet according to claim 1 of the utility model registration claim, characterized in that a protruding shaft similar to the protruding shaft provided at one end of the holder shaft body is formed at the outer end of the telescoping shaft. Tut paper roll core. 5. The core rod of a toilet paper roll according to claim 1, wherein the holder shaft body is rod-shaped as a whole.