JPH0722636Y2 - Baton - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a baton used by a police officer for protection, and more particularly to a baton in which a baton body is formed to be extendable.

The baton in the present invention includes a baton formed in a long cane shape (generally called a baton).

[Conventional technology]

Conventionally, police officers have generally used batons that are formed into wooden clubs (not expandable). Since this conventional baton cannot be expanded and contracted, it has been inconvenient for carrying.

Therefore, an extendable baton as shown in Fig. 4 was developed. In this conventional baton, as shown in FIG. 4, an outer pipe 1 made of metal and an inner pipe 2 made of metal are telescopically inserted, and a tapered portion 3 is formed at the tip of the outer pipe 1 and At the base end of the inner pipe, a diameter-expanded portion 4 having a trumpet-like diameter is formed.

The conventional baton is configured as described above, and when extending the baton, the base of the outer pipe 1 is gripped and shaken strongly, or the inner pipe 2 is pulled out and the outer end of the expanded diameter portion 4 of the inner pipe 2 is pulled out. Is narrowly inserted into the taper portion 3 for engagement, and the baton is contracted by strongly hitting the tip of the inner pipe 2 to release the engagement.

[Problems to be solved by the device]

The conventional baton can solve the problem of inconvenience of carrying. However, in the conventional example, the outer end of the expanded diameter portion 4 of the inner pipe 2 is narrowly inserted into the tapered portion 3 of the outer pipe 1 to fix (lock) both pipes 1 and 2. Have such problems.

(A) It is necessary to form the inner pipe 2 so that the outer diameter thereof is substantially the same as the inner diameter of the tip of the tapered portion 3 of the outer pipe 1. Therefore, the difference in diameter between the inner and outer pipes 1 and 2 becomes large, and the inner pipe becomes slightly thinner than the outer pipe.

(B) Since the two pipes 1 and 2 are fixed by the contact between the two points P ₁ and P ₂ of the outer end of the expanded diameter portion 4 and the tip of the tapered portion, the lock of both pipes cannot be reliably held. In addition, there is a possibility that rattling may occur due to the taper portion 3 expanding or the tip of the taper portion abrading due to repeated expansion and contraction of both pipes.

(C) Since the inner and outer pipes are fixed by two-point contact, both pipes 1 and 2 must be made of a robust material such as iron (the iron pipe is also used in the conventional example), and therefore the weight is high. It is not desirable for police officers to carry iron pipes, as it becomes heavier.

The present invention has been made in view of the above points of the prior art, and one of the objects of the present invention is to provide a baton which can reduce the diameter difference of the inner and outer pipes as compared with the conventional example. It is in.

Another object of the present invention is to provide a baton that can stably and reliably lock the inner and outer pipes and can eliminate the problem of rattling.

Another object of the present invention is to provide a baton that can be made lighter than the conventional example and can solve the problem of strength.

[Means for Solving the Problems]

In order to achieve the above object, a baton according to the present invention comprises a baton body formed by inserting an outer pipe member and an inner pipe member in a rotatable and telescopic manner, a locking means for detachably fixing the outer pipe member and the inner pipe member, A removal preventing means for preventing the inner pipe material from being pulled out from the outer pipe material, wherein the outer pipe material is made of a light metal round pipe material having a desired diameter and length, and a base end of the outer pipe material. The inner pipe is made of light metal round pipe with the desired outer diameter and the inner diameter of the outer pipe, and the tip of the inner pipe is fixed. A cap body is attached to the locking means, and the locking means is formed eccentrically with the inner pipe material,
An eccentric cam shaft having one end fixed to the base end of the inner pipe and distributed in the outer pipe and having a cylindrical cam action groove formed between the inner pipe and the outer wall of the outer pipe, and the eccentric cam shaft slidingly contacting the cam shaft. And a locking piece that is rotatably disposed in the action groove, and an engagement flange piece that is formed at the other end of the cam shaft to prevent the piece from falling off. It is structured such that both pipes can be engaged and disengagedly locked by rotating in the reverse direction, and the above-mentioned removal preventing means is formed by a rod slightly shorter than the outer pipe and is positioned on the center line of the outer pipe. The base end of the rod member is fixed to the lid member of the outer pipe member, and the tip side is arranged through the rod through hole axially formed on the cam shaft along the center line of the inner pipe member. A shaft and an engaging stopper fixed to the tip of the regulating shaft, and the stopper is engaged with the peripheral edge of the rod through hole. It is characterized in that they are combined to regulate the movement of the two pipe materials in the extension direction.

[Action]

The baton according to the present invention configured as described above has the following operation.

(B) When the fixing piece is loosely fitted in the cam action groove, both pipe members can swing in the axial direction, so that the baton body can freely expand and contract.

(B) If both pipes are rotated in the opposite directions (both normal and reverse directions) from the state of (a) above, the outer surface of the eccentric cam shaft bites and presses the top strongly against the inner wall surface of the outer pipe. Therefore, both pipe materials are integrally locked and fixed (the principle is the same even if one of the pipe materials is rotated). Then, when the pipe material is rotated in the original direction, the lock is released.

(C) In the state of (b) above, both pipes are fixed by the surface contact of the inner pipe and the surface contact of the outer wall surface of the top and the inner wall surface of the outer pipe, so the fixed state is stable and there is no rattling. Absent.

(D) When the baton is extended and the engagement stopper collides with the peripheral edge of the rod through hole of the cam shaft, both pipes cannot move in the extension direction, so the inner pipe cannot be pulled out from the outer pipe. Absent.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

The first is a longitudinal sectional view showing one embodiment of the baton according to the present invention,
2 is a sectional view taken along the line I-I of FIG. 1, and FIG. 3 is an exploded perspective view of the locking means.

1 to 3, a baton according to the present invention includes a baton body A formed by inserting an outer pipe member 11 and an inner pipe member 12 in a rotatable and telescopic manner, an outer pipe member 11 and an inner pipe member 12. It is provided with lock means B that is detachably fixed and withdrawal prevention means C that prevents the inner pipe material 12 from being removed from the outer pipe material 11.

The outer pipe material 11 is made of a light metal round pipe material such as an aluminum alloy having a desired diameter and length, and a lid member 13 is fixed to the base end of the pipe material 11. On the base end side of the outer pipe material 11, a collar 14 is rotated by an appropriate hand, and an outer peripheral surface of the pipe material 11 is covered with an anti-slip leather 15 between the collar 14 and the base end.
A grip portion is formed by the portion.

The diameter of the outer pipe member 11 is not particularly limited, but the diameter is preferably about 25 mm to about 35 mm so that it can be easily gripped by a hand. Also, since a normal baton is about 60 cm and a baton is about 120 cm, it is a little over 30 cm for batons and about 60 cm for batons.
It is advisable to strongly set the length of the outer pipe material 11.

The inner pipe member 12 is made of a light metal round pipe member such as an aluminum alloy having an outer diameter substantially equal to the inner diameter of the outer pipe member 11 and having a desired length (approximately the same length as the outer pipe member 11). With tubing 12
A cap body 16 is attached to the tip of the. The wall thickness of the pipes of the two pipe materials 11 and 12 is preferably about 2 mm to about 3.5 mm.

The locking means B is formed eccentrically with the inner pipe member 12,
One end 18 is fixed to the base end of the inner pipe member 12 with a screw 19 or the like and is distributed inside the outer pipe member 11, and a cylindrical cam action groove 20 is formed between the end wall 18 and the inner wall surface of the outer pipe member 11, etc. Of the eccentric cam shaft 17, a fixing piece 22 made of plastic or the like that is rotatably disposed in the action groove 20 in sliding contact with the cam shaft 17, and the cam shaft 17
Engagement flange piece for preventing the frame from falling off, which is formed integrally with the shaft 17 at the other end of the
21 is provided, and the outer pipe member 11 and the inner pipe member 12 are configured to be locked in a releasable manner by rotating the outer pipe member 11 and the inner pipe member 12 forward and backward relatively. The fixing piece 22 of the embodiment is composed of a divided body formed by dividing a cylindrical body into three equal parts.
Thus, when the fixing piece 22 is loosely fitted in the working groove 20, the two pipe members 11 and 12 are slidable in the axial direction, and from this state, the two pipe members 11 and 12 are slidable. Rotate 12 in the opposite directions (both forward and reverse), and the cam shaft
Since the outer surface of 17 bites into the inner surface of the top piece 22 and presses the outer surface of the top piece 22 strongly against the inner wall surface of the outer pipe material 11,
1 and 12 are integrally locked and fixed. In addition, one pipe material 1
The principle is the same even if 1 or 12 is rotated. And
The lock is released when the pipe material is rotated in the original direction.

The cam shaft 17 is formed with a rod penetrating hole 23 extending axially along the center line of the inner pipe member 12.

The removal preventing means C is composed of a restriction shaft 24 formed of a rod member slightly shorter than the outer pipe member 11 and an engagement stopper 25 fixed to the tip of the shaft, and is located on the center line of the outer pipe member 11. The shaft 23 is positioned so that the base end of the shaft 23 is fixed to the lid member 13 of the pipe material 11, and the tip end side of the shaft 24 is disposed so as to penetrate the through hole 23 of the cam shaft 17, and the stopper 25 engages with the peripheral edge of the hole 23. Combined both pipe materials 11, 12
Is configured to regulate the movement in the extension direction of the.

In FIG. 1, reference numeral 26 denotes a string insertion hole formed in the lid member 13.

[Effect of device]

Since the present invention is configured as described above, the present invention has the following effects.

(1) The diameter difference between the outer pipe member and the inner pipe member can be made smaller than in the conventional example.

(2) The outer pipe material and the inner pipe material are fixed by the surface contact between the fitting portions of both pipe materials and the fixing top and the outer wall surface and the inner wall surface of the outer pipe material in a stable fixed state. There is no fear of being attached.

(3) Since the baton main body is strengthened in strength by the above (1), both pipe materials can be manufactured from a light metal such as an aluminum alloy, and therefore, the baton main body can be formed lightweight.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a baton according to the present invention,
2 is a sectional view taken along the line I-I of FIG. 1, FIG. 3 is an exploded perspective view of the locking means, and FIG. 4 is a longitudinal sectional view showing a conventional baton. A: baton body B: locking means C: removal prevention means 11: outer tube material 12: inner tube material 13: lid member 16: cap body 17: eccentric cam shaft 20: cam action groove 21 ...... Engagement collar piece 22 …… Fixing piece 23 …… Bar through hole 24 …… Regulation shaft 25 …… Engagement stopper

Claims (1)

[Scope of utility model registration request] 1. A baton body A formed by inserting an outer pipe member 11 and an inner pipe member 12 in a rotatable and expandable and contractible manner, a locking means B for fixing the outer pipe member 11 and the inner pipe member 12 in a disengageable manner, and an inner pipe member.
The outer pipe member 11 is made of a light metal round pipe member having a desired diameter and length, and the outer pipe member 11 has a withdrawal preventing means C for preventing the outer pipe member 11 from being pulled out. A lid member at the base end of
13 is fixed, and the inner pipe member 12 is made of a light metal round pipe member having a desired length with the outer diameter being approximately the same as the inner diameter of the outer pipe member, and at the end of the inner pipe member 12. Is fitted with a cap body 16, the locking means B is formed eccentrically with the inner pipe member 12, one end is fixed to the base end of the inner pipe member, and the lock member B is disposed inside the outer pipe member 11 and the outer pipe member 11 An eccentric cam shaft 17 in which a cylindrical cam action groove 20 is formed between the inner peripheral wall surface and a fixing top 22 rotatably disposed in the action groove 20 in sliding contact with the cam shaft 17.
And an engaging flange piece 21 for preventing the frame from falling off, which is formed at the other end of the cam shaft 17, and by rotating the outer pipe member 11 and the inner pipe member 12 in the forward and reverse directions, the two pipe members 11 and 12 are removed. The withdrawal prevention means C is formed of a bar member which is slightly shorter than the outer pipe member 11, and is positioned on the center line of the outer pipe member 11 so that the base end of the bar member is locked. The regulating shaft 24 is fixed to the lid member 13 of the outer pipe member, and the distal end side is disposed through the rod through hole 23 axially formed in the cam shaft 17 along the center line of the inner pipe member 12 in the axial direction. When,
An engaging stopper 25 fixed to the tip of the regulating shaft 24 is provided, and the stopper 25 is engaged with the peripheral edge of the rod insertion hole 23 so as to regulate the movement of the two pipe members 11, 12 in the extending direction. A baton characterized by being configured in.