CONSTRICTIVE BAND

Abstract

A constrictive band includes a band body and a positioning member. The band body has a free end inserted through an insert hole of the positioning member and fixed at any location of the band body relative to said positioning member by means of a band fixing unit of the positioning member, forming a circle to constrict and hold something therein tightly and immovably. The band body can be easily handled to be inserted through the inert hole, and pulled out of the insert hole simply by compressing plate members of the positioning member for loosening the band body, permitting the constrictive band usable repeatedly for a long time.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a constrictive band, particularly to one easy to handle and possible to be used repeatedly.

2. Description of the Prior Art

Conventional constrictive bands are widely used in our daily life for constricting things stably, often used for positioning tubes or binding linear matters to be stored.

A Taiwan patent of No. 285970 disclosed “Constrictive Band”, another Taiwan patent disclosed “Constrictive Band used in a Constrictive Gun”, and another Taiwan patent disclosed “Stationary Line constrictive band”. However, those three articles are not so ideally structured, needing improvement for its handling and usable durability.

SUMMARY OF THE INVENTION

This invention has been devised to offer a constrictive band easily handled for constricting something in a circle formed by the constrictive band and possible to be used repeatedly for a long time.

The features of the invention are a band body and a positioning member detachably combined together. The band body is elongate and flat, provided with ratchet teeth on one or two longitudinal sides. The positioning member is an empty block and combined integral with one end of the band body, having a center insert hole for the band body to insert though and a band fixing unit respectively formed on an inner wall of two longitudinal sides. The band fixing unit is composed of two plate members, two elastic strips extending along two inner sides of the insert hole, a ring pushing and keeping the elastic strips positioned in place, an anti-retreat claw formed on an inner surface of the elastic strips to engage with the ratchet teeth for fixing the band body stably and immovable at one of many locations relative to the positioning member for forming a circle of various sizes to constrict something tightly therein.

BRIEF DESCRIPTION OF DRAWINGS

This invention will be better understood by referring to the accompanying drawings, wherein:

FIG. 1 is a perspective view of a constrictive band in the present invention

FIGS. 2A and 2B are side views of the constrictive band in bent using conditions in the present invention;

FIGS. 3A, 3B and 3C are elevation views of a positioning member in the constrictive band in the present invention;

FIGS. 4A and 4B are respectively a cross-sectional view of a line A-A and a line B-B in FIG. 2;

FIG. 5 is a cross-sectional view of a line C-C in FIG. 3C;

FIG. 6 is a cross-sectional view of the constrictive band in a loosened condition in the present invention;

FIG. 7 is a perspective view of the constrictive band provided with a band positioning unit at one side of a positioning member in the present invention

FIG. 8 is a cross-sectional view of the band positioning unit at one side of the positioning unit loosened in the present invention; and,

FIG. 9 is a perspective view of a plurality of the constrictive bands combined together in the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

A constrictive band 1 in the present invention, as shown in FIG. 1, includes a band body 11 and a positioning member 12 as main components.

The band body 11 is a long flat strip, having a plurality of ratchet teeth 111 formed on one or two longitudinal sides, and a free end with a guide (tapered) angle 112 for easy inserting.

The positioning member 12 is an empty mass, having a through insert hole 120 in its center and a band fixing unit 121 respectively formed in an inner wall of the two longitudinal sides, and a reinforcing rib 124 formed on the surface of the longitudinal side for strengthening a combining point where the end of the band body 11 is combined integral with the positioning member.

Next, as shown in FIGS. 3A, 3B, 3C, 4A, 4B, and 5, in using, the band body 12 is inserted through the through insert hole 120 of the positioning member 12 and then kept tight and immovable at a needed length by means of the two fixing units 121 so that the band body 11 may form a circle in order to constrict something in the circle tightly and immovable.

Each fixing unit 121 is composed of a plate member 1211, an elastic strip 1213, a ring 1214, and an anti-retreat stopper 1215. Further, a groove 1212 is formed at two sides of the insert hole 120 in the plate member 1212, located lengthwise and parallel to each other. The elastic strip 1213 is elongate and located to extend along the insert hole 120 from the bottom of an inner wall of the plate member 1211 out of the insert hole of the positioning member 12. The ring 1214 is located in the insert hole 120, of the positioning member 12, pushing and keeping the elastic strips 1213 in place. The anti-retreat claw 1215 projects inward from the inner surface of each elastic strip 1213, engaging with the ratchet teeth 111 of the band body 11 after the band body 11 is inserted through the insert hole 120 so that the band body 11 can only move in, but cannot retreat by means of function of the anti-retreat claw 1215. Thus the band body 11 is impossible to loosen off the positioning member 12 after inserted and positioned therein.

Furthermore, an auxiliary horizontal positioning block 122 can be added at an upper side and a lower side in the insert hole 120, and a vertical positioning block 123 can be added at the right and the left side in the insert hole 120 to limit the band body 11 to move in the special space surrounded by the two horizontal blocks 122 and the two vertical blocks 123 in the insert hole 120 of the positioning member 12, so that the band body 11 may not loosen, bias or wrongly be positioned in the insert hole 120.

Next, FIG. 6 shows the band body 11 is loosened in the positioning member 12, with the plate members 1211 pressed inward to force the ring 1214 to bend down, so that the elastic strip 1213 may curve down, Therefore, the ant-retreat claw 111 disengages from the ratchet teeth 111, permitting the band body 11 to retreat out of the insert hole 120, freeing the band body 11.

When the band body 11 in a constricted condition is to be loosened from the positioning member 12, as shown in FIGS. 7 and 8, the two plate members 1211 are compressed inward, and then the ring 1214 is bent inward so that the elastic strips 1213 may be pushed outward to force the claws 1215 to disengage from the ratchet teeth 111. Therefore, the band body 11 can be pulled completely out of the positioned member 12 via the insert hole 120, freeing the band by 11.

In addition, a plurality of the constrictive bands 1 can be connected together as shown in FIG. 9, by means of the band body 11 of a first constrictive band 1 inserted in the positioning member 12 of a second constrictive band 1, the band body 11 of the second constrictive band 1 inserted in the positioning member 12 of a third constrictive band 1, and the band body 1 of the third constrictive band 1 inserted in the positioning member 12 of the first constrictive band 1. Thus a circle formed by the three band bodies 11 can receive something therein for constricting it tightly and immovable.

This invention has the following advantages, as can be seen from the foresaid description.

1. Easy constriction and loosening of the band body: as the band body has the ratchet teeth and the positioning member has the band fixing units, the band body is easily inserted through the insert hole and kept stably and immovable by engagement of the ratchet teeth with the band fixing units at one of many locations; when the constricted band body is to be loosened off, only compressing the plate members can disengage the claws of the band fixing units from the ratchet teeth to permit the band body to be pulled and freed out of the positioning member, very convenient to use.

2. Repeatable use: This constrictive band can be used many times for a long time, by the band body possible to be assembled with and disassembled from the positioning members.

While the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.

Claims

1. A constrictive band comprising:

A band body shaped as a long and flat strip and having ratchet teeth fully on two longitudinal sides;

A positioning member shaped as an empty block, tightly and integrally combined with one end of said band body, having an insert hole through its center portion and a band fixing unit respectively at two inner sides;

Said band fixing unit composed of a flexible plate member formed at an upper side and a lower side of said insert hole, an elastic strip formed to extend from a bottom of two sides of said insert hole respectively and out of an upper side of said insert hole, a ring positioned in said insert hole for pushing and keeping said two elastic strips in position, an anti-retreat claw formed on an inner surface of said elastic strip for engaging with said ratchet teeth so as to keep said band body in place at one of many locations relative to said positioning member.

2. The constrictive band as claimed in claim 1, wherein said ratchet teeth are provided on only one longitudinal side of said band body.

3. The constrictive band as claimed in claim 1, wherein said band body has a free end formed with a guide tapered angle.

4. The constrictive band as claimed in claim 1, wherein said band fixing unit is provided only at one longitudinal side of said band body.

5. The constrictive band as claimed in claim 1, wherein said positioning member is provided with a reinforcing rib on an outer surface at a connecting point of one end of said band body and said positioning member.

6. The constrictive band as claimed in claim 1, wherein two symmetrical horizontal blocks are provided in an inner wall of said insert hole of said positioning member.

7. The constrictive band as claimed in claim 1, wherein two symmetrical vertical blocks are provided in an inner wall of said insert hole of said positioning member.