JP2001269204A - Chain band and method of connecting chain band pieces - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent connecting pins which unify chain band pieces from falling out of the band. SOLUTION: The chain band pieces having concavo-convex parts are successively and loosely connected to one another. A penetrating holes is bored at the connected part of the adjoining pieces in a transverse direction. A connecting pin is loosely inserted into the hole and then both ends of the hole are enclosed. Thus the chain band composed of securely connected chain band pieces and the method for securely connecting the chain band pieces are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of linking a chain band and a chain band piece, and more particularly, to the friction and vibration of a connecting medium for ensuring flexibility when a chain band is worn or used. The present invention relates to a method of linking a chain band and a chain band piece so that the link medium is not directly transmitted to a closing medium that restricts the connection medium.

[0002]

2. Description of the Related Art As shown in FIG. 6, a chain band piece is connected with pieces having a concave portion and a convex portion so that the convex portion is inserted into the concave portion continuously and loosely. The step shafts are inserted into the ends of the through-holes formed in the width direction of each of the pieces adjacent to each other in the longitudinal direction, and the step shafts are inserted and pressed and fixed, so that the flexibility of the pieces is secured together.

In other words, the inside diameter of the through hole formed in the width direction of each piece in the combination portion of the concave portion and the convex portion is constant,
The tip of the stepped shaft has a slightly smaller diameter than the inner diameter of the through hole, and the head has a slightly larger diameter than the inner diameter of the through hole.

Therefore, when the stepped shaft is inserted from both ends of the piece formed as described above, the leading end is freely inserted into the through hole so as to extend across the combined portion of the concave portion and the convex portion. At the same time, the head is buried at both ends of the through-hole by the further pressing force and is forcibly fixed, and each piece is connected in series to form a chain band.

[0005]

According to the prior art, the step shaft simultaneously secures two functions of linkability and flexibility of the bridge.

In such a case, conversely, only the step shaft receives resistance, friction, and the like to the function of the flexibility and the connection at the same time. That is, each linked adjacent piece is free with respect to the tip of the step axis, but the tip of this step axis is integrally formed with the head, and the head is fixed to each piece and immovable. It is in the state of. Therefore, the through-hole comes into contact with a specific portion of the tip portion each time due to long-term use, wearing, and removing operations of the chain band, thereby easily receiving a load such as resistance, friction, and vibration. Even if the pressure fixation to the hole end was sufficient, this gradually caused rattling and the stepped shaft fell off, or concentrated stress was applied to the tip, causing damage to the tip, inconvenience such as bending, At present, accidents such as inability to bend the chain band or disconnection of the chain band have occurred.

[0007] As described above, it has been found that the problem caused by the prior art is caused by imposing all functions on the step shaft which is fixed and restrained. SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described problems of the related art, and has an object to correct play by providing play to a connection medium.

[0008]

SUMMARY OF THE INVENTION An object of the present invention to solve the above problems is to allow pieces having concave portions and convex portions to enter each other loosely and continuously. Then, the connecting medium is inserted with play in the through-hole direction and the rotation direction into the through-holes drilled in the width direction of each of the pieces adjacent in the longitudinal direction in the combination portion, and both the through-holes are formed. An object of the present invention is to provide a chain band and a linking method of chain band pieces by connecting the pieces by closing the hole end.

According to the present invention, the connecting media are combined and inserted across the through-hole between the concave portions on both sides with the convex portion of each adjacent piece as the center, and furthermore,
Both ends of the connecting medium are loosely fitted with a gap to the closing medium fixed to both ends of the through hole with a gap and are restrained.

Further, since the diameter of the connecting medium is smaller than the inner diameter of the through-hole, the connecting medium and each of the linked pieces can freely move in the rotational direction, and the connecting medium is closed in the direction of the through-hole. Since it is free to move within the range of the play gap until it comes into contact with the medium and is restrained by the closing medium, it does not fall out or fall off.

That is, when the chain band obtained according to the present invention is used, worn, or the like, the connecting medium may rotate according to the rotation direction of each piece, and may move in the direction of the through hole. Therefore, the resistance, friction, vibration and the like received by the connection medium itself due to the contact with the through hole can be reduced as much as possible, and the places receiving these can be evenly distributed to unspecified places.

Since a gap is always formed in the through hole and the closing medium is not connected to both ends of the connecting medium, the resistance, friction, vibration and the like are reduced in conjunction with the above-mentioned relieving function. It further blocks transmission to the occluding medium.

[0013] In short, the connecting medium has the two functions of link and flexibility of the pieces, but is separated and independent from the closing medium, and the closing medium is strongly fixed to both ends of the through hole of the piece. Since both ends of the through-hole are closed, the connecting medium is not broken, the closing medium and the connecting medium do not fall off, and the flexibility is ensured, and the improvement of usability, safety, quality, etc. is maintained.

[0014]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory plan view of one embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a longitudinal side view thereof, FIG. 4 is a plan view of one embodiment of the present invention,
FIG. 5 is an explanatory plan view of a piece formed by combining an outer piece and an inner piece, and FIG. 6 is an explanatory plan view of one embodiment of the prior art.

In FIG. 1, reference numeral 1 denotes a piece having a concave portion 2 and a convex portion 3. In this manner, the piece 1 may be formed by integrally molding the concave portion 2 and the convex portion 3, and the concave portion 2 and the convex portion 3 are formed by combining the outer piece 4 and the inner piece 5 as shown in FIG. May be.

In order to form a chain band, the pieces 1 are sequentially adjacent to each other so that the convex portions 3 enter the concave portions 2 and are combined, and the combined portions of the concave portions 2 and the convex portions 3 are locked. By doing so, a chain band continuous in the longitudinal direction can be obtained.

Conventionally, in order to sequentially lock the pieces 1 in such a combination, as shown in FIG. 6, a stepped shaft 7 is inserted through and fixed to the through-hole 6, thereby connecting the adjacent pieces 1 to each other. I was In other words, the stepped shaft 7 has a tip 8 and a head 9 integrally formed in a series, and the tip 8 has a slightly smaller diameter than the through-hole 6 formed in the piece 1. Is slightly thicker. Therefore, the step shaft 7 is connected to the through hole 6.
When pressed through, the tip 8 is free with respect to the through-hole 6, but the head 9 is embedded in the through-hole 6, closes both ends of the through-hole 6, and Fixed. The problem of the connection by the step shaft 7 is as described above.

FIGS. 1 to 5 specifically show a configuration according to the present invention. In order to sequentially lock the pieces 1, the connecting medium 10 slightly smaller than the inner diameter of the through hole 6 penetrates around the convex portion 3 of the piece 1, and is inserted across the concave portions 2 on both sides in a crosswise manner. The closing medium 11 which is slightly thicker than the inner diameter of the hole 6 is forcibly pressed into the through hole 6 with a gap d so as not to be in contact with both ends of the connection medium 10 and buried, thereby connecting the pieces 1 in series. Into a chain band.

Therefore, the connection medium 10 is free in the rotation direction, and is freely fitted in the direction of the through hole 6 within the range of the gap d, and is restrained by the closing medium 11 and falls off. Never. The connection medium 10
As a solid shaft, a hollow shaft, a round shaft such as a pin is applied, and the closing medium 11 functions as a stopper of the coupling medium 10, and is not limited to a fixed shaft or a fixed base. Naturally, it can be replaced with a part such as a decorative lid that closes.

[0020]

The present invention has the above-mentioned structure,
Since the playability of the connection medium in the rotation direction and through-hole direction of the connection medium itself is extremely good, the burden of concentrated stress, load, resistance, vibration, friction, etc. applied to the connection medium when using or wearing a chain band is automatically reduced. These are not directly transmitted to the closing medium, so that the closing medium does not loosen, which is very effective in preventing the closing medium and the connecting medium from falling off, and reduces accidents such as breakage and breakage, and reduces Can withstand the use of

[Brief description of the drawings]

FIG. 1 is an explanatory plan view showing an embodiment of the present invention.

FIG. 2 is a side view showing an embodiment of the present invention.

FIG. 3 is a vertical sectional side view showing one embodiment of the present invention.

FIG. 4 is an explanatory plan view showing an embodiment of the present invention.

FIG. 5 is an explanatory plan view of a piece showing one embodiment of the present invention.

FIG. 6 is an explanatory plan view showing an embodiment according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 piece 2 concave part 3 convex part 4 outer piece 5 inner piece 6 through hole 7 step shaft 8 tip 9 head 10 connection medium 11 closing medium

Claims (3)

[Claims] 1. After pieces are combined so as to enter each other loosely and continuously, the through-holes formed in the width direction of each piece adjacent in the longitudinal direction in the combination portion are formed in the through-hole direction and the rotation direction. By inserting the coupling medium with play and closing both ends of the through hole,
A method of linking chain band pieces, comprising a series of pieces. 2. A piece (1) having a concave portion (2) and a convex portion (3) is combined with each other so that the convex portion (3) enters the concave portion (2) loosely and continuously. A connecting medium (10) having a diameter smaller than the inner diameter of the through hole (6) is inserted into the through hole (6) drilled in the width direction of each of the pieces (1) adjacent in the longitudinal direction in the combination portion from the recess (2). A plugging medium (11) is inserted across the convex part (3) in a crosswise manner, and is inserted into both ends of the through hole (6) with both ends of the coupling medium (10) and a gap (d). By fixing, the piece (1)
A chain band characterized by a series of comrades. 3. The chain band according to claim 2, wherein the piece (1) having the concave part (2) and the convex part (3) comprises a combination of a pair of outer piece pieces (4) and inner piece pieces (5). .