KR20120127814A - A band tightener - Google Patents

Abstract

PURPOSE: A rotary type band tightener is provided to simply tighten or release bands using one hand and to be applied to various kinds of articles. CONSTITUTION: A rotary type band tightener includes a first band(10), a second band(20), a body(30), a handle, and a controlling unit. A long hole is formed at the end part of the second band. A second rack part is formed along the lower inner wall of the long hole. The body includes an inner moving part, a circular recess, a center hole, and one directional ratchet. The handle includes a pinion part and a corresponding ratchet. The controlling unit releases the engagement of the ratchets.

Description

Rotary-operated band tighter {A BAND TIGHTENER}

The present invention relates to a tighter for tightening or loosening both bands, or 'C'-shaped bands whose ends are interconnected. In particular, the tightening and loosening operation is very simple, and one-handed operation is easy. A technique relating to a rotatable band tightener is possible.

As a technology regarding a device for adjusting a headband such as a helmet or a hard hat,

Korea Utility Model Registration No. 20-0397251 (registered on September 23, 2005, hereinafter referred to as `` advanced technology '') `` Headband adjusting device of hard hat '' is proposed,

The prior art forms a series of structures integrally formed in the headband to release the band locked to one end in the headband is formed integrally, as well as easy to manufacture, there is no need to assemble the mechanism to release the separate The headband of a hard hat that can be combined with the band by easily adjusting the inner diameter formed by the headband by a simpler structure, and can also separate the combined band by simple operation. Although it's about technology,

Only one band located on one side, that is, inserted into the adjusting device, is adjusted by pulling or unwinding,

In particular, to loosen the band, press the two pressing pieces with one hand and pull the fixing band with the other hand.On the contrary, to tighten the band, you need to press the two pressing pieces with one hand and insert the fixing band with the other hand to the adjusting device. There is discomfort.

An object of the present invention is to provide a rotationally operated band tightener that is easy to operate and loosen the band and can be operated by one hand.

Furthermore, an object of the present invention is to provide a rotationally operated band tighter that allows both bands to move forward and backward together by a rotation operation so that the length of both bands can be easily adjusted with a small number of rotations of the handle.

In order to solve the above problems, the rotationally operated band tighter according to the present invention,

A first band having a longitudinal first hole and an first rack portion formed along an upper inner wall thereof at an end thereof;

A second band having a second longitudinal hole at its end and a second rack portion formed along a lower inner wall thereof;

Two through-type inner slides in which respective ends of the first and second bands overlap each other, a circular recess formed in the front central region, a central hole formed in the center of the recess, and the recess inner peripheral surface A body comprising a unidirectional ratchet formed along;

A pinion portion engaged with the respective rack portions of the first and second bands through the center hole and rotatably mounted to the sliding portion, and a corresponding ratchet engaging the ratchet, wherein the ratchet engages with the ratchet. A handle for inducing the first and second bands to move forward from the sliding portion of the body toward the center hole, respectively; And

Adjusting means for releasing the engagement between the ratchet and the corresponding ratchet when the handle is rotated in the other direction;

Consisting of,

When the handle is rotated in the other direction, the ratchet and the corresponding ratchet are released from each other by the adjusting means so that the first and second bands move backward from the sliding portion of the body toward the opposite side of the central hole, respectively. It is characterized by.

And the handle

A plate in which the pinion is formed to protrude from a rear center thereof;

A grip part to which the plate is rotatably mounted at a rear side,

A relay portion formed on an outer circumferential surface thereof and connected to the plate to have elastic support force; and

Stop means for preventing the plate from turning when the grip portion rotates in one direction

Characterized in that consisting of.

And the adjusting means

A guide groove formed along the other circumference of the relay unit; and

A protrusion part inserted into the guide groove to press the relay part radially inward when the grip part rotates in the other direction, so that the corresponding ratchet is spaced apart from the ratchet to be disengaged from each other;

Characterized in that consisting of.

On the other hand, the first and the second band is characterized in that each rack portion is formed on both the upper and lower inner wall of each long hole.

Rotationally operated band tighter according to the present invention,

Operation for tightening and loosening of both bands is very simple, one-handed operation has the greatest effect possible.

In addition, there is an effect that can be used by applying the band tighter of the present invention to various articles (for example, helmet, helmet, etc.).

1 is an exploded three-dimensional block diagram showing a rotary operation band tightener according to the present invention,
2 and 3 is an operating state diagram of the rotary operation band tightener according to the present invention,
Figure 4 is a helmet configuration to which the band tighter of the present invention is applied,
5 and 6 are bottom view of FIG. 4.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

To specify the direction of the front or front of the handle side, the rear or rear of the body side, the upper or upper portion of the first rack portion, the lower or lower portion of the second rack portion, based on FIG. Shall be.

In addition, 'one direction' to be described below means clockwise, and 'other direction' means counterclockwise.

In addition, "A" and "B" of FIG. 1 are views of the article from different angles, and "C" of FIG. 2 and "D" of FIG. 3 are enlarged views of the corresponding region.

As shown in Figures 1 to 3, the rotary operation band tightener according to the present invention,

The first band 10, the second band 20, the body 30, the handle 40 and the adjusting means 50 is large.

Looking at each configuration,

The first band 10

As shown in Figure 1,

The first long hole 11 formed along the longitudinal direction at the end, and

A first rack portion 12 formed along the upper inner wall of the first long hole 11

.

In this case, the first rack portion 12 is formed by a plurality of gear teeth (tooth) are formed at regular intervals along the upper inner wall of the first long hole (11).

The second band 20

As shown in Figure 1,

A second long hole 21 formed at an end in the longitudinal direction, and

Second rack portion 22 formed along the inner wall of the lower second hole 21

.

At this time, the second rack portion 22 is formed by a plurality of gear teeth at regular intervals along the inner wall of the lower second hole 21.

In the present invention, the first rack portion 12 is formed on the upper inner wall of the first long hole 11, the second rack portion 22 is formed on the inner inner wall of the lower second hole 21,

On the contrary, the first rack part 12 may be formed on the inner wall of the lower part of the first long hole 11, and the second rack part 22 may be formed on the inner wall of the upper part of the second long hole 21.

In addition, each of the first and second rack parts 12 and 22 may be formed on both the upper and lower inner walls of the corresponding long holes 11 and 21.

Body 30

As shown in Figure 1,

Both through-type internal slides 31 having end portions of the first and second bands 10 and 20 overlapping each other,

A circular recess 32 recessed in the front central region,

A center hole 33 formed in the center of the recess 32, and

One-way ratchet 34 formed along the inner circumferential surface of the recess 32

.

At this time, the body 30 may be made of front and rear powders 30A, 30B that are detachably coupled to each other,

The recess 32, the center hole 33, and the ratchet 34 are arranged in the front powder 30A,

The sliding part 31 is arranged in the front part 30B in the front part.

And the front powder (30A) is formed with a rear projection type elastic engaging portion 35 on both ends (兩 端 部),

The rear powder 30B has coupling portions 36 formed at both ends thereof to which the elastic catching portion 35 is inserted.

Therefore, the body 30 is capable of mutually detachable coupling of the front powder 30A and the rear powder 30B.

In addition, the sliding portion 31 of the rear powder 30B is formed with an insertion portion 37 into which the elastic fitting portion 421a formed on the central axis 421 of the grip portion 42 to be described later is rotatably fitted.

The handle 40 is

As shown in Figure 1,

The first and second bands 10 and 20 in the one-way rotation operation to induce the forward movement toward the center hole 33 side from the sliding portion 31 of the body 30, respectively,

A pinion part which engages with the rack parts 12 and 22 of the first and second bands 10 and 20 past the center hole 33 and is rotatably mounted to the sliding part 31. 411), and

Corresponding ratchet 431 engaged with the ratchet 34

.

More specifically,

The handle 40 is

As shown in " A " and " B "

Plate 41 is formed so that the pinion portion 411 protrudes in the rear center,

A grip portion 42 on which the plate 41 is rotatably mounted,

The corresponding ratchet 431 is formed on the outer circumferential surface and a relay portion 43 connected to the plate 41 to have elastic support force, and

Stop means 44 which prevents the plate 41 from turning when the grip portion 42 rotates in one direction.

.

At this time, the pinion portion 411 of the plate 41 has a cylindrical shape, and a plurality of gear teeth are formed along the outer circumferential surface.

And for mutual coupling of the grip portion 42 and the plate 41 rotatably mounted thereto,

The grip portion 42 is provided with a central axis 421 protruding in the rear center, the elastic fitting portion 421a is formed at the end of the central axis 421,

The plate 41 has a coupling hole 411a penetrating the center of the pinion portion 411.

Therefore, the coupling hole 411a is fitted into the central axis 421 and the elastic fitting portion 421a is forcibly fitted into the insertion portion 37 formed on the sliding portion 31 of the body 30, thereby allowing the grip portion. The coupling between the 42 and the plate 41 is made.

And the stop means 44 is

As shown in Figs. 1 to 3,

A long hole 441 formed at an eccentric position in the plate 41, and

A stopper 442 protruding from the grip part 42 and inserted into the long hole 441.

.

When the grip part 42 rotates in one direction, the long hole 441 is caught by the stopper 442 to stop the plate 41 from being idle.

After all, as in [a] and [b] of FIG.

When the grip part 42 rotates in one direction, the plate 41 also rotates in one direction, so that the pinion part 411 of the plate 41 rotates in one direction and interlocked with the first and second parts. Each of the rack parts 12 and 22 of the two bands 10 and 20 moves forward toward the center hole 33 of the body 30.

The long hole 441 will be described in more detail in the adjustment means 50 to be described later.

The adjusting means 50

As shown in Figs. 1 to 3,

To release the interlocking of the ratchet 34 and the corresponding ratchet 431 when the handle 40 rotates in the other direction,

Guide grooves 51 formed along the other circumferential direction in the relay portion 43 of the handle 40, and

The corresponding ratchet 431 is inserted into the guide groove 51 to press the relay part 43 radially inward when the grip part 42 of the handle 40 rotates in the other direction, so that the corresponding ratchet 431 is the body 30. Projections 52 spaced apart from the ratchets 34 of the to engage with each other

.

At this time, the long hole 441 of the stop means (44) is radially inward by the relay part (43) by the protrusion (52) of the adjusting means (50) when the grip part (42) of the handle (40) rotates in the other direction. It is preferable that the stopper 442 has a length that the stopper 442 can be moved and stopped so as to be pressurized until the interlocking between the ratchet 34 and the corresponding ratchet 431 is released when it is pressed.

When the grip part 42 of the handle 40 rotates in the other direction,

The protrusion portion 52 inserted into the guide groove 51 is in close contact with the inner wall portion 511 of the guide groove 51 to move the relay portion 43 toward the central axis 421 of the grip portion 42. Pressurized,

At this time, the inner wall portion 511 is formed to extend from the relay portion 43, it is preferable that the protrusion 52 is inclined to be in close contact with the inner wall portion 511 to generate a predetermined pressing force.

Accordingly, the relay 43 is bent inward by the pressing force to release the corresponding ratchet 431 from the ratchet 34.

After all, as in [a] and [b] of FIG.

By the rotation of the other direction of the handle 40, the meshing between the ratchet 34 and the corresponding ratchet 431 is released

The first and second bands 10 and 20 are moved backward from the sliding part 31 of the body 30 toward the opposite side of the central hole 33, respectively.

Rotationally operated band tighter according to the present invention made of the above configuration can be used in a variety of articles,

As an example, as shown in FIG. 4,

In a state in which a helmet 1 composed of a main body 2 that can be used for a head and mounting portions 3 that are provided on both inner walls of both sides of the main body 2 is provided.

In the rotationally operated band tighter according to the present invention, corresponding mounting parts 13 and 23 are provided on one surface of the other end opposite to each end of the first and second bands 10 and 20, respectively. By attaching the mounting portions 13 and 23 to the respective mounting portions 3 of the helmet 1,

As shown in FIG. 5, the first and second bands 10 and 20 are tightened or loosened by the manipulation of the handle 40.

When tightened, the first and second bands 10 and 20 are closely adhered along the head circumference,

When released, the first and second bands 10, 20 are spaced apart from the head circumference.

On the other hand, it is preferable that the mounting portion 3 of the helmet 1 and the corresponding mounting portions 13 and 23 of the first and second bands 10 and 20 are Velcro that can be detached from each other.

The other end of the first and second bands 10 and 20 may further include a cushion member 60 attached by a velcro to be in contact with the head.

On the other hand, as shown in Figure 6, the first and second bands (10, 20) may be made of a bundle of the other end thereof is connected to each other.

In the above description of the present invention with reference to the accompanying drawings, but with a specific shape and structure of the "rotationally operated band tighter" mainly described, but various modifications and changes by those skilled in the art, such variations and modifications Should be construed as falling within the protection scope of the present invention.

10: first band
11: Chapter 1 12: First rack
13: correspondence mounting part
20: second band
21: Chapter 2 22: The second rack part
23: counterpart
30: body
30A: front powder 30B: rear powder
31: sliding part 32: recess
33: center hole 34: ratchet
35: elastic fastening portion 36: coupling portion
37: insertion unit
40: handle
41: plate 411: pinion portion
411a: coupling hole
42: grip part 421: central axis
421a: elastic fitting
43: relay unit 431: corresponding ratchet
44: stop means 441: long hole
442: Stopper
50: control means
51: guide groove 511: inner wall
52: protrusion
60: cushion member

Claims (4)

A first band (10) having a longitudinal first slot (11) at its end and a first rack portion (12) formed along an upper inner wall thereof;
A second band 20 having a second longitudinal hole 21 at its end, and a second rack portion 22 formed along the lower inner wall thereof;
Both through-type inner slides 31 having respective ends of the first and second bands 10 and 20 overlapping each other, circular recesses 32 formed in the front central region, and the recesses (32) a body (30) comprising a central hole (33) formed in the center and a one-way ratchet (34) formed along the inner circumferential surface of the recess (32);
A pinion part which engages with the rack parts 12 and 22 of the first and second bands 10 and 20 past the center hole 33 and is rotatably mounted to the sliding part 31. 411, and a corresponding ratchet 431 engaged with the ratchet 34, wherein the first and second bands 10 and 20 are formed at the sliding part 31 of the body 30 in a one-way rotational operation. A handle 40 for inducing a forward movement toward the center hole 33; And
Adjusting means (50) for releasing the engagement between the ratchet (34) and the corresponding ratchet (431) when the handle (40) rotates in the other direction;
, ≪ / RTI >

When the handle 40 rotates in the other direction, the ratchet 34 and the corresponding ratchet 431 are released from each other by the adjusting means 50 so that the first and second bands 10 and 20 are moved. Rotationally-operated band tighter, it characterized in that the sliding portion 31 of the body 30 to move backward toward the opposite side of the center hole (33), respectively.
The method of claim 1,
The handle 40 is
Plate 41 is formed so that the pinion portion 411 protrudes in the rear center,
A grip portion 42 on which the plate 41 is rotatably mounted,
The corresponding ratchet 431 is formed on the outer circumferential surface and a relay portion 43 connected to the plate 41 to have elastic support force, and
Stop means 44 which prevents the plate 41 from turning when the grip portion 42 rotates in one direction.
Rotating operation band tightener, characterized in that consisting of.
The method of claim 2,
The adjusting means 50 is
A guide groove 51 formed along the other direction of the circumference in the relay portion 43, and
When the grip part 42 is inserted into the guide groove 51 to press the relay part 43 radially inward when the grip part 42 rotates in the other direction, the corresponding ratchet 431 is spaced apart from the ratchet 34 to be engaged with each other. Protrusion 52 to be released
Rotating operation band tightener, characterized in that consisting of.
The method according to any one of claims 1 to 3,
The first and second bands (10, 20) is a rotationally operated band tighter, characterized in that each rack portion (12, 22) is formed on both the upper and lower inner walls of each long hole (11, 12).

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