JPH0546643Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a buckle, and more specifically, it is configured to securely clamp one end of a belt and to allow the belt to be removed extremely easily when removed. This is about the buckle that was created.

[Prior Art] As this type of buckle, a conventional technology as shown in FIG. 6, for example, is common.

That is, the buckle body designated by reference numeral 30 in FIG. 6 is provided with side plates 31 on both the front and rear sides, and one end thereof is rotatably supported on a fixture 33 via a shaft 32. Furthermore, a bent piece 34 is formed at the other end of both side plates 31, 31 at a right angle toward the inside.

Further, an elongated biting tooth 35 is rotatably supported coaxially with the shaft 32.

One end 36a of the belt is fixed to the fixture 32, and the other end 36b of the belt is attached as follows.

That is, the fixture 33 is rotated counterclockwise around the shaft 32 so that the tooth surfaces of the biting teeth 35 do not face the inner surface of the buckle body 30. In this state, a gap larger than the thickness of the belt tip 36b is created between the belt and the buckle main body 30. Therefore, one end 36b of the belt is connected to the buckle body 30 and the biting teeth 35.
When the length of the belt is adjusted to the desired length, the buckle body 30 and the fixing metal fitting 32 are made almost horizontal.

Then, the distance between the biting teeth 35 and the buckle body 30 is shortened, and the biting teeth 35 bite into one end 36b of the belt, fixing the one end 36b of the belt.

[Problems to be Solved by the Invention] The above-mentioned conventional technology has a structure in which one end 36b of the belt is fixed only by the positional relationship of the rotating state of the biting teeth 35.

In order to make it easier to insert the one end 36b of the belt, a slight gap is provided between the tooth surface of the biting teeth 35 and the one end 36b of the belt. As a result, when the one end 36b of the belt is inserted, the biting teeth 3
5 does not necessarily rotate toward the belt side, play occurs and the belt cannot be reliably bitten into one end 36b, or the biting teeth may slip due to wear and the tightened position of the belt may shift. There is a problem that it gets stuck or comes off.

The object of this invention is to provide a buckle configured so that the function of the biting teeth can be effectively exhibited in order to eliminate the above-mentioned problems.

[Means for Solving the Problems] The purpose of this invention described above is to divide the biting tooth into two parts, and to create a rotary stopper (hereinafter referred to as a stopper) equipped with an engagement protrusion that is rotatably supported on a shaft. It consists of a rotary stopper guide frame (hereinafter referred to as guide frame) made of semi-hard or soft synthetic resin, which is also rotatably supported on a shaft. It is formed into a rectangular shape, with a groove in the center and a protrusion formed on the top surface to form a relief area so that the guide frame can be crushed by external force, and an elastic piece is provided on the side of the guide frame. The frame is fixed to the tip of the fixed frame that is attached to the base end of the belt, so that the clamping body can always be pushed toward the guide frame, and the top surface of the guide frame is placed higher than the upper surface of the clamping body. This is achieved by employing a positioning structure.

[Function] When the above-described structure is adopted, the locking body is always pressed against the guide frame side by the elastic piece and tends to become integrated.

When one end of the belt is inserted into the buckle body, the inner surface of the belt comes into contact with the top surface of the guide frame, and the friction force causes the guide frame to be crushed so that the stopper comes into contact with the belt and moves away from the guide frame. The elastic piece is elastically deformed and rotated to allow one end of the belt to pass through. Adjust the length of the belt in this state.

When the adjustment is complete and you release your hand from the insertion side of the belt, the locking body returns to its original state due to the frictional force between it and the belt and the elasticity of the elastic piece, and bites into the back side of the belt together with the guide frame, removing the belt. Fix it.

To remove the belt, rotate the buckle body in a direction that is almost perpendicular to the base end of the belt. The clamping body and guide frame will be slightly separated from the back of the belt, so one end of the belt can be easily removed. Can be pulled out.

[Example] Hereinafter, details of the present invention will be explained based on an example shown in the drawings.

1 to 5 illustrate an embodiment of the present invention, and FIG. 1 shows an exploded perspective view of the entire device. In Figs. 1 to 5, the reference numeral 1 indicates the buckle body, which is made of metal or the like, and has elongated side plates 2, 2 on both front and rear edges in the width direction.
is formed at right angles downwards. Also,
Both longitudinal ends of the buckle body 1 are open, and a bottom plate 3 of a predetermined width is horizontally suspended between the lower edges between the side plates at the tip, as shown in FIG.

A shaft 4 is fixedly suspended horizontally between the lower ends of the side plates 2, 2 at their rear ends. An elongated U-shaped locking body 5 that is open downward is rotatably supported on the shaft 4. The locking body 5 is made of metal, and its upper plate 7
Side walls 6, 6 are integrally formed at both ends of the holder, and protrusions 7a having a triangular cross section are formed at a predetermined pitch on the upper surface of the upper plate 7 of the locking body 5, including the upper surfaces of these side walls 6, 6. A plurality of strips are formed, and the upper plate 7 of the buckle body 5 has a notch 5a formed in the front surface facing the front side of the buckle body 1.

On the other hand, what is indicated by the reference numeral 8 is a band fixing frame, which is made of a metal plate, and whose upper edge is connected to the buckle body 1.
It has left and right side plates 9, 9 that are arcuate toward the belt insertion side, and an arcuate upper plate 10 is horizontally suspended between the upper edges of these side plates 9, 9.

At the rear end sides of the side plates 9, 9, through holes 9a are formed at lower end portions of the side plates 9, 9 to face each other.

An operating lever 11 is arranged below the fixed frame 8. The width of this operating lever 11 is approximately equal to the distance between the side plates 9, 9. A stopper 12 is provided on the base end side of the operating lever 11 and projects upwardly and at right angles. The upper end of the catch 12 is serrated. At both ends of this clasp 12, outwardly protruding portions 12a are formed. Projecting parts 12a, 12
The amount of protrusion a is such that it reaches the outside of both edges of the operating lever 11 in the width direction. These protrusions 12a,
12a are the through holes 9a, 9 of the side plates 9, 9, respectively.
It is rotatably supported in a.

Incidentally, the distance between the outer sides of the side plates 9, 9 of the fixed frame 8 is narrower than the distance between the side plates 2, 2 of the buckle main body 1, and a protrusion 13 is provided at the tip of the upper plate 10 in a horizontal state, facing forward. It was once erected.

The width of the protruding piece 13 is narrower than the distance between the side walls 6, 6 of the locking body 5, and bent pieces 14 are provided on both left and right ends of the tip of the protruding piece 13 to protrude upward at a right angle. The base end of a guide frame 15 is fixedly attached to the shaft 4 between these bent pieces 14, 14, and the guide frame 15 is attached to a stopper 5 on the same axis.
It is located within the notch 5a of.

The guide frame 15 is molded from soft or semi-hard synthetic resin, and is formed as a thick rectangular frame body, and has a rectangular groove 1 in the center along the longitudinal direction.
6 is formed. The upper surface of the guide frame 15 is slightly curved so as to be convex upward, and two protrusions 17, 17 are formed along the longitudinal direction. Stop body 5
It is located slightly above the protrusion 7 of.

Further, an elastic piece 18 is provided on the side surface of the guide frame 15 on the side of the band fixing frame 8 and projects diagonally upward. There is.

This guide frame 15 is located between the side walls 6, 6 of the locking body 5, and is supported on the buckle body 1 side by the shaft 4 together with the bent pieces 14, 14 and the locking body 5. Therefore, the band fixing frame 8 side, which is integrated with the operation lever 11 side, is rotatably connected to the buckle main body 1 side.

Next, the usage and operation of the buckle configured as described above will be explained.

As shown in FIG. 2, the base end 19a of the belt is fixed to the fixed frame 8 side. At this time, the operating lever 11
is rotated to be perpendicular to the fixed frame 8,
Place the clasp 12 parallel to the band fixing frame 8, and attach the upper plate 10.
2. Increase the space between the two and insert the tip of the base end 19a of the belt into this space. Next, operation lever 1
1 in the counterclockwise direction in FIG. 1, and the serrated teeth at the upper end of the clasp 12 are bitten into the back surface of the base end of the belt to fix it.

On the other hand, when inserting the belt tip 19b from the tip side of the buckle body 1,
As shown in the figure, insert the belt tip 19b into the buckle body 1 from the tip side.

Then, as shown in FIG.
is elastic piece 18 due to the frictional force between it and the back side of the belt
The guide frame 15 made of soft resin elastically deforms and rotates counterclockwise in the figure, while the guide frame 15 made of soft resin absorbs the pushing force exerted by the belt on the protrusion 17 with its groove 16.
can be elastically deformed, and the tip 19 of the belt can be elastically deformed.
Allow b to pass. In this way, the tip of the belt
Insert the 9b side and adjust the length of the belt. At this time, the protrusion 17 of the guide frame 15 is still in contact with the belt.

When the length adjustment is completed and the belt is released, a pulling force is applied to the belt tip 19b in the direction indicated by the arrow in FIG. 4. Then, the locking body 5 is drawn toward the guide frame 15 by the elastic piece 18 and becomes integral, and as the guide frame 15 rotates clockwise in the figure due to the frictional force between the guide frame and the belt. The clamping body 5 also moves together, and its projection 7a stands up and bites into the back surface of the belt, fixing the belt. This is the state in which the belt is attached.

On the other hand, when it is desired to remove the belt, the fixing frame 8 and the buckle body 1 are rotated about the shaft 4 in a direction at right angles to each other. Then, a slight gap is created between the top surface of the locking body 5 and the back surface of the buckle body 1, allowing the belt to be pulled out.

[Effects of the invention] The buckle of this invention consists of biting teeth consisting of a clamping body and a guide frame, the guide frame is made of soft resin and is fixed to the shaft, and a groove is provided in the center of the guide frame to form a groove on the top surface. This structure creates a relief for the applied external force and presses the locking body against the guide frame using elastic pieces provided on the side, so when the belt is inserted, the upper end of the guide frame is elastically deformed and the belt is constantly can be brought into contact with the guide frame, and the locking body is separated from the guide frame.
To allow the belt to pass through and adjust and fix the length of the belt, pull the stopper toward the guide frame so that it stands upright, and bite the protrusion into the belt to securely fix the belt. effective.

[Brief explanation of the drawing]

Figures 1 to 5 illustrate one embodiment of the present invention, where Figure 1 is an exploded perspective view, Figure 2 is a perspective view of the installed state, and Figure 3 is taken along line A-A in Figure 2. 4 and 5 are perspective views of the main parts during installation and insertion, and FIG. 6 is a sectional view of the conventional structure. 1... Buckle main body, 2... Side plate, 4... Shaft,
5... Clamping body, 5a... Notch, 6... Side wall, 7
a, 17... Projection, 8... Fixed frame, 11... Operation lever, 15... Guide frame, 18... Elastic piece.

Claims (1)

[Scope of utility model registration request] A shaft 4 is fixed between the side plates 2, 2 of the buckle body 1, which has side plates 2, 2 protruding downward on both front and rear sides, and a belt fixing frame 8 to which the base end 19a of the belt is fixed. It is rotatably supported on the shaft 4 with bent pieces 14, 14 formed upright on the left and right sides of its tip, and a rotating pin formed in a U-shape by the upper plate 7 and both side walls 6, 6. The stopper 5 is attached to the shaft 4 with side walls 6, 6.
A plurality of protrusions 7a are provided along the longitudinal direction on the upper surface of the rotation stopper 5 including the side walls 6, 6, and on the side surface of the upper plate 7 facing the belt insertion side. A notch 5a is formed, and the bent pieces 14, 1 of the belt fixing frame 8 are formed separately from the rotation stopper 5.
A rectangular rotary lock guide frame 15 made of soft or semi-hard synthetic resin is positioned between the rotary lock guide frame 15 and fixed to the shaft 4 at its base end.
A groove 16 is formed along the longitudinal direction in the central part of the guide frame 15, and a plurality of protrusions 17 are formed along the longitudinal direction on the upper surface of the guide frame 15. An elastic piece 18 for pressing the body 5 toward the rotary lock guide frame 15 is provided in a protruding manner so that the upper part of the rotary lock guide frame 15 is positioned in the notch 5a of the rotary lock 5. A buckle characterized in that the protrusion 17 of the guide frame 15 is positioned above the protrusion 7a of the rotation stopper 5.