JP3697693B2 - Bamboo sword - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spear that is inserted into and removed from the handle of a bamboo sword and that does not require tacking.
[0002]
[Prior art]
Bamboo swords used in kendo often use a set of a highly rigid heel made of plastic or the like and a rubber heel stopper. The handle of this bamboo sword is wrapped with a cylindrical leather, and the tip side is formed into a taper with a gradually increasing diameter. First, a heel is inserted into the tip from the rear end of the handle, and then a rubber heel stopper is attached. The The inner periphery of the barb is formed smaller than the outer periphery of the end of the handle, and is pressed against the outer periphery of the handle so as not to move easily due to its elasticity.
Such scissors and scissors are separated from the bamboo sword after training and stored separately in a bamboo sword bag. At that time, the heel and the tack are separated, and the tack is smaller in diameter than the heel, and thus is easily lost.
[0003]
Thus, various proposals have been made in which the tacking and tacking are integrated.
For example, Japanese Patent Publication No. 05-28154 “Bamboo Blade” has an inner peripheral surface of a cocoon main body integrally formed with a soft elastic hook. And the thickness of this barb is thicker than the thickness of the barb, and it is formed in the axial direction.The inner surface of the barb and the contact surface of the bamboo sword handle are widened to improve the stability when attaching the barb to the handle. Secured.
[0004]
[Problems to be solved by the invention]
The conventional device in which the heel and the heel stop are integrally formed has the following drawbacks because the heel stop portion is integrally formed on the inner peripheral surface of the rigid heel body.
First, since the amount of deformation of the hook stopper is extremely small, the inner diameter of the hook needs to be strictly aligned with the mounting portion of the handle of the bamboo sword. However, bamboo swords are made by combining four long bamboo pieces, and it is difficult to precisely determine the diameter of the handle.
In addition, a large number of patterns are prepared according to the physique of the user, the size of the hand, and the like, and are selected according to their preference. For this reason, it has been a very troublesome problem to prepare a hooked hook that exactly matches them.
[0005]
In addition, the elastic deformation of the hook stop is extremely small, so that a large force is required to attach the hook to the handle of the bamboo sword firmly and to remove it, which makes it difficult for a weak child to insert and remove it. It was.
Accordingly, an object of the present invention is to provide an apparatus in which a hook and a hook stopper are integrated, which can cope with the diameters of various bamboo sword handles and can be easily worn even by a weak child.
[0006]
[Means for Solving the Problems]
The present invention as set forth in claim 1 comprises a rigid heel body (2) having a deep annular recess (1) formed on the inner periphery thereof;
A flat, disc-shaped rubber plate having a radially outer portion in the annular recess (1) and having a bamboo sword insertion hole (4) smaller than the diameter of the handle (3a) of the bamboo sword (3) on the axis. (5) and
The inner diameter of the collar body (2) is formed larger than the diameter of the bamboo sword insertion hole (4) of the rubber plate (5), and the rubber plate (5) and the annular recess (1) are at least Without joining the flat surfaces, each part of the rubber plate (5) is allowed to shift in the radial direction with respect to external force, and the thickness of the central part of the rubber plate (5) is the total thickness of the main body (2). Formed thinner,
Bamboo sword configured such that when the main body (2) is inserted into and removed from the handle (3a) of the bamboo sword (3), the central part of the rubber plate (5) is deformed into a cylindrical shape on the rear side in the moving direction. It is a trap.
[0007]
The present invention according to claim 2 is the method according to claim 1,
The bag main body (2), the first member (2a) formed in a dish shape having a hole in the center,
The outer periphery is aligned with the inner periphery of the first member (2a) , and is composed of a second member (2b) formed in a dish shape and having a hole in the center,
The two members (2a) and (2b) are fitted with each other, and the rubber plate (5) is interposed between the members (2a) and (2b) so that they are joined and fixed together.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of the bag of the present invention, and FIG. 2 is an enlarged sectional view taken along the line II-II in FIG. Moreover, FIG. 3 is explanatory drawing which shows the attachment state of the bag of this invention, and the state at the time of detachment | leave, respectively.
The scissors of the present invention have a scissors body 2 and a rubber plate 5 as shown in FIGS. As shown in FIG. 2, the bag body 2 includes a dish-shaped first member 2a and a second member 2b each having a hole in the center, and the outer periphery of the second member 2b is aligned with the inner periphery of the first member 2a. The first member 2a and the second member 2b can be formed of a plastic molded body. In this example, with the rubber plate 5 fitted to the dish-shaped portion of the second member 2b, an adhesive is attached to the outer peripheral surface of the second member 2b and the edge adjacent to the outer periphery, and the second member 2b By fitting this to the first member 2a, it is possible to form a bag.
[0009]
The rubber plate 5 is flat and formed in a disk shape, and a rubber plate having a thickness of about 3 mm can be used as an example. In this example, the outer peripheral portion in the radial direction of the rubber plate 5 is housed in a deep annular recess 1 composed of a first member 2a and a second member 2b. The interior portion of the rubber plate 5 is slightly larger than the exposed portion of the inner periphery.
Moreover, the plane part of the rubber plate 5 and the inner surfaces of the dish-shaped recess 1a and the dish-shaped recess 1b are in an unbonded state. The bamboo sword insertion hole 4 of the rubber plate 5 is formed to be sufficiently smaller than the handle 3 a of the bamboo sword 3.
[0010]
In addition, it cannot be overemphasized that the design of the various dimensions of the rubber plate 5 and the bag main body 2 can be changed as needed. As an example, the outer diameter of the rubber plate 5 can be about 60 mm, and the inner diameter of the bamboo knife insertion hole 4 can be about 18 mm.
Moreover, the outer peripheral diameter of the bag main body 2 can be about 85 mm as an example, and the inner peripheral diameter can be about 35 mm.
Further, the thickness of the bag body 2 is about 8 mm, the groove width of the annular recess 1 can be about 3 mm, and the depth thereof can be about 12 mm.
[0011]
The bag of the present invention thus constructed is inserted from the rear end of the handle portion 3a formed in a taper as shown in FIG. During the insertion, the central portion of the rubber plate 5 is deformed rearward in the insertion direction, and the central portion of the rubber plate 5 becomes a cylindrical portion 5a as shown by the solid line in FIG. At this time, in FIG. 2, since the fitting portion between the rubber plate 5 and the annular recess 1 is not bonded by an adhesive or the like, a change in the radial direction also occurs inside the fitting between the rubber plate 5 and the annular recess 1. Therefore, it is easily deformed as shown in FIG. 3, and in this deformed state, the rubber plate 5 is accurately held by the handle 3a, and the plane of the heel body 2 is orthogonal to the axis of the handle 3a.
[0012]
According to the experiment, when the flat surface of the rubber plate 5 and the inner surface of the dish-shaped recess 1a and the inner surface of the dish-shaped recess 1b are bonded with an adhesive, when the scissors are mounted on the handle 3a of the bamboo sword 3, the mounting Resistance becomes extremely large. In addition, it is very difficult to remove the bag after mounting. In particular, it turned out to be impossible for a powerless child.
However, in the present invention, since the plane of the rubber plate 5 and the plane of the inner surface of the annular recess 1 of the bag main body 2 are in a non-bonded state, a radial shift is possible even in the fitting portion between the two. It was found that desorption was easy. That is, even a relatively weak child can be easily inserted and removed.
When the heel body 2 is removed from the handle portion 3a, the cylindrical portion 5a of the rubber plate 5 is deformed in a direction opposite to the solid line state as shown by a chain line. Such deformation can be easily performed by making the thickness of the rubber plate 5 thinner than that of the bag main body 2. If the thickness of the rubber plate 5 is about the same as the thickness of the bag main body 2, the deformation becomes difficult.
[0013]
[Operation and effect of the invention]
In the bamboo sword of the present invention, a radially outer portion of a disk-shaped rubber plate 5 is internally mounted in an annular recess 1 of the cage body 2, and at least the planes of the rubber plate 5 and the annular recess 1 are adhesives or the like. Each part of the rubber plate 5 is configured to be allowed to shift in the radial direction with respect to the external force applied to the rubber plate 5 without being joined by the above. Furthermore, when inserting / removing the scissors main body 2 to / from the handle 3a of the bamboo sword 3, the rubber plate 5 is configured such that its central portion is deformed into a cylindrical shape on the rear side in the moving direction.
[0014]
By configuring as described above, when the scissors are mounted on the handle 3a of the bamboo sword 3, the mounting state can be reliably maintained, and even a relatively weak child can easily insert and remove the scissors of the present invention. is there. This is based on the fact that each part of the rubber plate 5, particularly the part inserted into the annular recess 1, can be changed in the radial direction with respect to the external force applied to the rubber plate 5 at the time of insertion / removal.
Furthermore, since it is comprised as mentioned above, even if the thickness of the pattern of various bamboo swords changes, it becomes possible to attach a main fence. That is, the main hammer can cope with the thickness of various bamboo swords.
[Brief description of the drawings]
FIG. 1 is a plan view of a bag of the present invention.
2 is an enlarged cross-sectional view taken along the line II-II in FIG.
FIG. 3 is an explanatory view showing a state in which the scissors according to the present invention are inserted into and removed from the handle 3a of the bamboo sword 3.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Annular recessed part 1a Dish-shaped recessed part 1b Dish-shaped recessed part 2 鍔 main body 2a First member 2b Second member 3 Bamboo sword 3a Handle part 4 Bamboo sword insertion hole 5 Rubber plate 5a Cylindrical part 6 Adhesive

Claims (2)

A rigid heel body (2) having a deep annular recess (1) formed on the inner periphery;
A flat, disc-shaped rubber plate having a radially outer portion in the annular recess (1) and having a bamboo sword insertion hole (4) smaller than the diameter of the handle (3a) of the bamboo sword (3) on the axis. (5) and
The inner diameter of the collar body (2) is formed larger than the diameter of the bamboo sword insertion hole (4) of the rubber plate (5), and the rubber plate (5) and the annular recess (1) are at least Without joining the flat surfaces, each part of the rubber plate (5) is allowed to shift in the radial direction with respect to the external force, and the thickness of the central part of the rubber plate (5) is the entire thickness of the main body (2). Formed thinner than the thickness,
Bamboo sword configured such that when the main body (2) is inserted into and removed from the handle (3a) of the bamboo sword (3), the central part of the rubber plate (5) is deformed into a cylindrical shape on the rear side in the moving direction.鍔. In claim 1,
The bag main body (2), the first member (2a) formed in a dish shape having a hole in the center,
The outer periphery is aligned with the inner periphery of the first member (2a) , and is composed of a second member (2b) formed in a dish shape and having a hole in the center,
With two members (2a) (2b) are fitted to each other, both members (2a) (2b) of the rubber plate between (5) is interposed, bamboo collar to which both are bonded and fixed.

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