JP3031903U - Size adjustment band - Google Patents

Abstract

(57) [Summary] [Means for Solving the Problem] A holder 5 is provided which is in pressure contact with the front surface of an adjusting strip 1 and holds each longitudinal side edge of the adjusting strip 1. On the front surface of the holding body 5, an adjustment knob body 3 that fits into the pinion body 4 and rotates together with the pinion body 4 is provided. A ratchet pawl 6 </ b> A that restricts rotation of the adjusting knob body 3 in one direction is provided on the outer periphery of the locking ring 6 fixed to the front surface of the holding body 5. A ratchet ring 3A that engages and disengages with the ratchet pawl 6A is provided on the rear surface of the adjusting knob body 3. A release ring 7 that locks the ratchet pawl 6A locked to the ratchet ring 3A and forcibly releases the ratchet pawl 6A is arranged between the holding body 5 and the locking ring 6. [Effect] Firmly hold a certain length, and each operation of tightening and releasing is extremely easy.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 This device adjusts the size of helmets, hats, sun visors, and other headwear, as well as length-adjusting belts to be worn on sportswear such as skiwear and wetsuits, and straps such as bags, health equipment, and restraint garments. The present invention relates to a size adjustment band suitable for use in.

[0002]

[Prior art]

 Until now, as the adjusting tool for adjusting the band of a helmet or the like, the adjusting cap described in Japanese Utility Model Publication No. 3-50021 and the adjusting tool described in the band adjusting ratchet device of Japanese Patent Publication No. 6-99843 are known.

The former adjuster used for the safety cap is provided with a pair of bands having rack-shaped grooves and a handle having a gear that meshes with the grooves of the bands. By rotating the handles, The length of each of the bands to be connected is adjusted.

In addition, the latter ratchet device is provided with a napstrap to be inserted into the ratchet case and an adjustment knob having a cogs to be engaged with the napstrap, so that the ratchet case is fitted with the cogs. A matching click projection is provided, while an elastic lip around the adjustment knob holds the end of the napstrap in place.

Further, the inventor of the present invention has previously applied for a size adjustment band using a pinion body and a reverse stopper (Japanese Patent Application No. 6-177535). This size adjustment band makes it possible to adjust the tightening strength to the desired strength.

[0006]

[Problems to be solved by the device]

 However, the former adjuster allows the bands to be adjusted in length by rotating the handles, but the handles are always free from each other. There was a defect that they could not be fixed to each other at a certain length.

Further, in the latter ratchet device, the nap straps can be held at a constant length by the action of the click protrusion and the elastic lip. If it comes off the protrusion, it may not be possible to hold it at a certain length. Therefore, if you try to forcibly separate the nap straps that have been clamped and held to a fixed length, you can easily separate them with a small amount of force.This ratchet device firmly holds a fixed length. There is an inconvenience that cannot be done. However, since the cogs fitted to the click projection are forcibly moved so as to extend beyond the tip of the click projection, the tip of the click projection is easily crushed. Therefore, by repeatedly using this ratchet device, the cogs do not fit into the click protrusions, and it is gradually impossible to hold them at a constant length.

Further, in the size adjustment band previously proposed by the applicant of the present invention, the tightening strength can be adjusted to a desired strength by the pinion body and the reversing stopper. However, when releasing the reverse rotation stopper, it is necessary to pull the stopper once and then release it, so it is inconvenient to operate it while wearing it on a helmet, for example. There was a problem in operation.

Therefore, the present invention was created to solve the above-mentioned problems, and can hold an arbitrary length extremely firmly, and the size of each operation of tightening and releasing is extremely easy. The purpose is to provide an adjustment band.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the first means of the present invention is to put a pair of adjustment strips 1 provided with a rack portion 2 along the longitudinal direction on top of each other in front and back, and fit the rack portion 2 to adjust the adjustment strips. The pinion body 4 that slides the body 1 is adjusted. In the size adjusting band that protrudes to the front surface of the adjusting band body 1, the rotating tooth 4B that meshes with the rack portion 2 is pressed from the pressure contact plate 4A that presses against the rear surface of the overlapping adjusting band body 1. The pinion body 4 protruding to the front surface of the adjusting strip 1 via the press contacting the front surface of the superposed adjusting strip 1 while holding each longitudinal side edge of the adjusting strip 1 and rotatably inserting the pinion body 4 A holding ring 5 fixed to the front surface of the holding body 5 having a holding body 5 to be swung and an adjusting knob body 3 which is superposed on the front surface of the holding body 5 and fits on the pinion body 4 and rotates together with the pinion body 4. 6 on the outer circumference of the adjusting knob 3 in one direction A ratchet pawl 6A that restricts rotation is provided, and a ratchet ring 3A that engages and disengages with the ratchet pawl 6A is provided on the rear surface of the adjusting knob body 3. The release ring 7 for forcibly releasing is disposed between the holding body 5 and the locking ring 6, and the release ring 7 is provided with a guide port 7A for forcibly guiding by locking the ratchet pawl 6A. When rotating, the ratchet pawl 6A is moved along the inner peripheral edge of the guide opening 7A, and the stop opening 7B for maintaining and fixing the released state of the ratchet pawl 6A is provided in the inner peripheral edge of the guide opening 7A. As a means to

It is assumed that the ratchet pawl 6A of the second means has an elastic force of expanding and locking to the ratchet ring 3A by its own elastic force when it is forcibly released from the stop port 7B.

Further, the ratchet pawl 6A of the third means forms a sharp curved sliding contact portion 7B at the tip end which contacts the guide port 7A and the stop port 7B of the release ring 7.

Further, in order to solve the problem, the fourth means is that the longitudinal one end of the adjusting band 1 is released to form the open end 1B, and the rack portion 2 is formed so as to be freely inserted into the rotary tooth 4B. As a means of.

[0014]

[Embodiment of device]

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

Reference numeral 1 shown in the drawing is an adjusting strip 1 used for a hat, a sun visor, a helmet, and a covering object such as a magnifying glass, an endoscope, a head lamp, and a beeper (see FIG. 1). In addition to this, the adjustment belt 1 is attached to a length adjustment belt to be worn on sportswear such as ski wear and wet suit, or to a strap such as a bag, health equipment, and restraint garment. At this time, as the fixing means of the adjusting band 1, a conventionally known fixing means such as a snap, an eyelet, or a surface fastener is appropriately selected and fixed.

The adjustment strip 1 is provided with a rack portion 2 along the longitudinal direction, and a pair of adjustment strips 1 are superposed on each other in the front-rear direction. In the illustrated example, the ends are overlapped with each other, and the slide elongated hole 1A is opened in the overlapping portion of the adjustment strips 1 (see FIG. 1). The rack portions 2 are provided along the upper longitudinal side edge of one slide elongated hole 1A and the lower longitudinal side edge of the other slide elongated hole 1A.

Then, an adjustment knob body 3 which is fitted into the rack portion 2 of the adjustment strip body 1 and slides the adjustment strip body 1 is arranged on the front surface of the adjustment strip body 1. The adjusting knob body 3 is superposed on the front surface of a holding body 5 which will be described later and rotates together with the pinion body 4 (see FIG. 2).

The pinion body 4 protrudes to the front surface of the adjustment strip 1 via the pressure contact plate 4A that comes into pressure contact with the rear surface of the overlapped adjustment strip 1, the rotary tooth 4B that meshes with the rack portion 2, and the rotary tooth 4B. And a connecting shaft 4C (see FIG. 2). The illustrated pressure contact plate 4A has a disc shape and rotates while being pressed against the rear surface of the adjusting band 1. Further, the rotary teeth 4B are formed integrally with the press-contact plate 4A and the connecting shaft 4C, and enhance the structural strength and durability, and are meshed with the rack portions 2 of the adjustment strip 1 that are superposed in the front-rear direction. . The connecting shaft 4C penetrates the holding body 5 on the front surface of the adjusting band 1 and projects forward, and is connected to the adjusting knob body 3. The illustrated connecting shaft 4C has a sectional shape that matches the opening shape of the through hole 3B opened in the adjustment knob body 3, and the pinion body 4 rotates together with the adjustment knob body 3 (see FIG. 4).

At this time, one longitudinal end of the adjusting strip 1 is released to form an open end 1B, and the rack 2 is formed so as to be freely inserted into the rotary tooth 4B (see FIGS. 6 and 7). The release end 1B shown in FIG. 6 is a release end 1B in which the end of the adjustment strip 1 is simply cut, and a release end 1B in which the end of the adjustment strip 1 is wide open. Is shown. When the adjustment strip 1 not provided with the open end 1B is used, inconvenience occurs during assembly. Therefore, by using the open end 1B in a cut state, the assembling work can be facilitated. Further, when the open end portion 1B in the cut state is used, the rack portion 2 can be prevented from coming off. FIG. 6 shows an example in which the adjustment strips 1 are connected to each other in a direct crossing state. Further, FIG. 7 shows an example in which the adjustment strips 1 are obliquely connected to each other. By forming the open end portion 1B in the adjustment strip 1 in this manner, the adjustment strips 1 can be connected to each other at any angle. Reference numeral 5F in the figure is a track projecting on the back surface of the base 5B of the holding body 5, and controls the moving direction of the adjustment strips 1 relative to each other. This track 5F has a thickness corresponding to the thickness of the adjustment strip 1 at a portion in contact with a side edge of the adjustment strip 1 when the adjustment strip 1 having the wide open end 1B is arranged on the holding body 5 side. By providing a guide groove (not shown) and inserting the adjusting strip 1 into this guide groove, the stability of the adjusting strip 1 can be enhanced. Further, by combining the adjusting strip 1 having the open end portion 1B with the pinion body 4 having the structural strength and durability enhanced by integrally forming the adjusting strip 1 as described above, the connecting angle of the adjusting strip 1 can be arbitrarily set. Can be set to, and the number of used adjustment strips 1 can be increased.

The holder 5 is brought into pressure contact with the front surface of the superposed adjustment strip 1 (see FIG. 2). Then, each longitudinal side edge of the adjusting band body 1 is held, and the pinion body 4 is rotatably inserted. At this time, a locking piece 5C for holding each longitudinal side edge of the overlapped adjustment strip 1 is provided with a rear surface protruding from the upper and lower side edges of the plate-shaped base 5B (see FIG. 1). . In addition, the pressing force of the holder 5 is enhanced by forming the pressing plate 5A by bending the left and right side edges of the base 5B toward the adjustment strip 1 side.

The locking ring 6 is fixed to the front surface of the holding body 5 (see FIG. 3). The locking ring 6 is provided with a fitting portion 6C that fits into a fitting protrusion 5E protruding from the front surface of the holding body 5. Further, a ratchet pawl 6A for restricting rotation of the adjusting knob body 3 in one direction is provided on the outer periphery of the locking ring 6. A ratchet ring 3A that engages and disengages with the ratchet pawl 6A is provided on the rear surface of the adjusting knob body 3 (see FIGS. 2 and 3). At this time, the ratchet pawl 6A has an elastic force that expands by its own elastic force and locks with the ratchet ring 3A, and the ratchet pawl 6A is forced between the holding body 5 and the locking ring 6. There is a release ring 7 that can be released (see FIG. 5).

The adjusting knob body 3 is fitted to a pinion body 4 protruding from the front surface of the adjusting strip body 1, and by rotating the pinion body 4, the adjusting strip body 1 is slid and moved. Have been polymerized on the front surface of the (see FIG. 2). On the rear surface of the adjusting knob body 3, there is provided a ratchet ring 3A which is engaged with and disengaged from the ratchet pawl 6A in the rotational direction. The ratchet ring 3A shown in the drawing forms a ring body by projecting the peripheral edge of the adjusting knob body 3 rearward, and provides the inner peripheral surface of the ring body with unevenness that engages with the ratchet pawl 6A in only one direction ( (See FIGS. 2 and 3).

The release ring 7 is provided with a guide port 7A that engages with the ratchet pawl 6A and forcibly guides it (see FIGS. 3 and 5). Then, when the release ring 7 is rotated, the ratchet pawl 6A is moved along the inner peripheral edge of the guide port 7A, and the ratchet pawl 6A locked to the ratchet ring 3A is forcibly released (FIG. 5A). reference). Further, a stop port 7B is provided on the inner peripheral edge of the guide port 7A, and the ratchet pawl 6A is locked to the stop port 7B to maintain and fix the released state of the ratchet pawl 6A (see FIG. See c)). At this time, the ratchet pawl 6A forms a sharp curved sliding contact portion 6B at the tip of the release ring 7 in contact with the guide port 7A and the stop port 7B. The bent sliding contact portion 6B facilitates transition of the ratchet pawl 6A from the locked state to the released state, and from the released state to the locked state.

Further, the elastic body 8 is provided at the tip of the pinion body 4, and the holding knob 5 is constantly biased by the holding body 5 to engage the ratchet claw 5A and the ratchet ring 3A (see FIG. 2). ). The elastic body 8 has a substantially cruciform shape, and is inserted into a substantially T-shaped engaging portion 4D provided at the tip of the connecting shaft 4C of the pinion body 4 projecting from the front surface of the adjusting knob body 3 to form 90 degrees. They are connected by reversing (see FIG. 1). The elastic body 8 presses the front surface of the adjusting knob body 3 with the pinion body 4 as a fulcrum. As a result, rattling between the pinion body 4 and the adjusting band body 1 is prevented, and the adjusting knob body 3, the release ring 7 and the like are prevented from being disassembled.

In the figure, reference numeral 9 is a protective cap, which covers the front surface of the adjusting knob body 3 (see FIG. 2). The protective cap 9 is fitted to the tip of the connecting shaft 4C of the pinion body 4 and prevents the elastic body 8 from rotating. Further, when the adjusting knob body 3 is operated, the elastic body 8 and the tip of the connecting shaft 4C are not obstructed.

Reference numeral 10 is a reinforcing frame. The reinforcing frame body 10 is connected to the holding body 5 on the back side of the adjusting band body 1. For example, the locking piece 5C of the holding body 5 is fitted and bonded and fixed to the connecting portion 10A of the reinforcing frame body 10. The reinforcing frame body 10 reinforces the adjustment strip body 1 to prevent the rack portion 2 from opening and the pinion body 4 from derailing when the adjustment strip body 1 is loaded.

[0027]

[Effect of device]

 The present invention achieves the original purpose by being configured as described above.

That is, according to the first aspect, it becomes possible to extremely strongly hold an arbitrary length, and an excellent reverse rotation preventing force is provided. Therefore, unlike the conventional ratchet device of this type, even if the adjustment strip is forcibly separated, it cannot be separated easily. Moreover, tightening and releasing operations can be performed very easily. In addition, it solved the conventional problem that it became difficult to maintain a certain length even after repeated use over a long period of time.

According to the second and third aspects, the ratchet pawl 6A can be easily operated by operating the release ring 7. As a result, for example, the inconvenience of operating the helmet while wearing it was eliminated.

Further, according to claim 4, the adjustment strips 1 can be connected to each other at any angle, and the range of use can be further expanded. Therefore, in addition to hats, sun visors and helmets, magnifying glasses, endoscopes, headlights, hemaki and other headgear, as well as sportswear such as ski wear and wet suits, the size adjustment band of the present invention can be attached. It can be used in an extremely wide range, such as an adjustment belt, or a strap for a bag, health equipment, restraint clothes, etc.

As described above, according to the present invention, an arbitrary length can be held extremely firmly, and the tightening and releasing operations can be performed very easily, and further, it can be used in an extremely wide range. It produces various beneficial effects such as

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing the device.

FIG. 2 is a plan sectional view showing a main part of the present invention.

FIG. 3 is a front sectional view showing a locked state of a ratchet ring and a ratchet pawl of the present invention.

FIG. 4 is a sectional view of an essential part showing a connecting shaft of the pinion body of the present invention.

FIG. 5 is a front view of a main part showing a ratchet ring, a guide port, and a stop port of the present invention.

FIG. 6 is a rear view showing a state in which the adjusting strips of the present invention are connected to each other in an orthogonal state.

FIG. 7 is a rear view showing a state in which the adjustment strips of the present invention are diagonally connected to each other.

[Explanation of symbols]

 1 Adjusting strip 1A Sliding long hole 1B Opening end 2 Rack part 3 Adjusting knob 3A Ratchet ring 3B Through hole 4 Pinion body 4A Pressure contact plate 4B Rotating tooth 4C Connecting shaft 4D Engaging part 5 Holding body 5A Pressing plate 5B Base 5C Locking piece 5D Through hole 5E Fitting protrusion 5F Track 6 Locking ring 6A Ratchet claw 6B Bending sliding contact part 7 Release ring 7A Guide port 7B Stop port 8 Elastic body 9 Protective cap 10 Reinforcing frame body 10A Connecting part

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Claims (4)

[Scope of utility model registration request] 1. A pinion body for stacking a pair of adjustment strips provided with a rack portion along the longitudinal direction in front and back, and fitting the rack strips to slide the adjustment strip on the front face of the adjustment strip. In the protruding size adjustment band, the pinion body protruding from the pressure contact plate pressed against the rear surface of the overlapped adjustment strip to the front surface of the adjustment strip through the rotating teeth meshing with the rack portion, and the front surface of the overlapped adjustment strip. A holding body that press-contacts, holds each longitudinal side edge of the adjustment band, and rotatably inserts the pinion body, and an adjustment knob that overlaps with the front surface of the holding body and that fits on the pinion body and rotates with the pinion body. A ratchet claw that regulates the rotation of the adjustment knob body in one direction is provided on the outer periphery of the locking ring that is fixed to the front surface of the holding body, and the ratchet ring that engages and disengages with the ratchet claw is an adjustment knob body. A release ring that is provided on the rear surface and that locks the ratchet pawl that is locked to the ratchet ring to forcibly release the ratchet pawl is placed between the holding body and the locking ring, and is locked to the ratchet pawl and forced. A guide port for guiding is provided on the release ring, and when the release ring is rotated, the ratchet pawl is moved along the inner peripheral edge of the guide port, and the stop port for maintaining and fixing the released state of the ratchet pawl is provided on the inner peripheral edge of the guide port. Size adjustment band characterized by being recessed. 2. The size adjusting band according to claim 1, wherein the ratchet pawl has an elastic force of expanding and locking with the ratchet ring by its own elastic force when it is forcibly released from the stop port. 3. The size adjusting band according to claim 1 or 2, wherein the ratchet pawl has a sharp slidable sliding contact portion formed at a tip end thereof in contact with the guide port and the stop port of the release ring. 4. The size adjustment band according to claim 1, wherein one end of the adjustment strip is opened to form an open end, and the rack portion is formed so as to be freely inserted into the rotary tooth.