WO2013015064A1

WO2013015064A1 - Tube holder

Info

Publication number: WO2013015064A1
Application number: PCT/JP2012/066414
Authority: WO
Inventors: 洋平相馬
Original assignee: 株式会社ニフコ
Priority date: 2011-07-28
Filing date: 2012-06-27
Publication date: 2013-01-31
Also published as: JP2013029170A

Abstract

The holding part (14) of the hose clamp (10), which is the tube holder, has a shape that surrounds the entire circumference of a pipe (12), which is the tube. A releasing part (16) is formed in at least one portion of the holding part (14) in the circumferential direction. A first engaging part (18) and a second engaging part (20) are provided as protrusions on the outer circumference of the two ends of the holding part (14). The tube holder is configured so that when the first engaging part (18) and the second engaging part (20) are engaged and the hose clamp (10) is in the final tightening state, escape areas (40, 42) into which portions of the slackened pipe (12) can enter are provided as recesses on the inner circumference of the holding part (14).

Description

Tubular body holder

The present invention relates to a tubular body holder used when connecting a tubular body such as a pipe or a hose to another member.

Conventionally, as a tubular body holder, for example, there is Patent Document 1. In this conventional tubular body holder, connection portions are formed at both ends of a circular ring portion along the shape of the outer peripheral portion of the tubular body. In addition, by sandwiching these connecting portions with stoppers, the tubular body can be connected to other members such as a main plug in a state in which a sealing property is ensured.

JP 4-113007

The present invention provides a tubular body holder capable of ensuring sealing performance and preventing the tubular body from being bitten.

According to a first aspect of the present invention, there is provided a holding portion having a shape surrounding the entire circumference of a tubular body along an outer peripheral surface of the tubular body, and having an open portion at least at one place along the circumferential direction, and the holding An engagement part for holding the both ends in a final tightened state pulled together, and a recess provided on at least one inner periphery of the both ends. There is provided a tubular body holder having a relief portion into which a part of the tubular body enters in a tightened state.

In the above aspect, when holding the tubular body, the outer peripheral surface of the tubular body into which the end portion of the other member is inserted is surrounded by the holding portion of the tubular body holder having a shape surrounding the outer peripheral surface. In addition, the engaging portions projecting from the outer peripheral portions of the both end portions of the holding portion are engaged with each other, and the both end portions of the holding portion are held in the final tightened state attracted to each other. For this reason, since the outer peripheral surface of the tubular body can be surrounded and tightened by the holding portion, sealing performance is ensured. In addition, when a part of the tubular body is slackened in the final tightening state, a part of the slackened tubular body is recessed in the relief part formed in at least one inner peripheral part of both ends of the holding part. enter. For this reason, it is possible to prevent a part of the slackened tubular body from being bitten between both ends.

According to a second aspect of the present invention, in the first aspect of the present invention, the opening portion includes a circumferentially divided portion along a widthwise intermediate portion of a contact surface of the holding portion with the tubular body, A first width direction dividing portion extending from one end of the circumferential direction dividing portion along the width direction of the contact surface, and a first width direction extending from the other end of the circumferential direction dividing portion along the width direction of the contact surface. And a second width direction division portion extending in the opposite direction to the division portion, and the relief portion may be formed in the first width direction division portion and the second width direction division portion.

In the above aspect, the open portion extends along the width direction of the contact surface from one end of the circumferential direction division portion along the width direction intermediate portion of the contact surface with the tubular body in the holding portion. The first width direction dividing portion and the second width direction dividing portion extending in the opposite direction to the first width direction dividing portion along the width direction of the contact surface from the other end of the circumferential direction dividing portion. Relief portions are formed in each of the first width direction division portion and the second width direction division portion. For this reason, the portion where the relief portion in the first width direction division portion is formed can be sealed by the holding portion on the side where the second width direction division portion is formed, and the relief portion in the second width direction division portion is formed. The location can be sealed with the holding portion on the side where the first width direction division portion is formed. As a result, the escape portion does not cross the holding portion, and the sealing performance is not impaired, so that the sealing performance is further improved.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the escape portion has a shape in which one of both end portions of the holding portion is cut out in an inclined manner toward the tip. The shape in the final tightened state may be a triangle when viewed from the width direction of the holding portion.

In the above aspect, the relief portion has a shape in which one of both end portions of the holding portion is cut out in an inclined manner toward the tip, and the shape in the final tightened state is a triangle when viewed from the width direction of the holding portion. It has become. For this reason, since a relief part becomes a shape which is easy to shape | mold, productivity of a tubular body holder improves.

According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the holding portion is formed to protrude toward the inner peripheral side on the contact surface with the tubular body, and the opening portion You may have the protrusion which is formed along the direction division | segmentation part and presses the circumferential direction whole region of the said tubular body in the said final fastening state.

In the above aspect, the protrusion formed on the contact surface of the holding portion with the tubular body so as to protrude toward the inner peripheral side is formed along the circumferentially divided portion in the open portion. For this reason, since the protrusion strongly presses the entire circumferential direction of the tubular body in the final tightened state in which the tubular body is held, the sealing performance is further improved.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the engaging part includes a male part and a female part integrally formed with the holding part, and the male part And the female portion may be engaged with each other to hold the final tightened state.

In the above aspect, the male part and the female part of the engaging part that are held in the final tightening state by engaging can be integrally formed with the holding part. For this reason, productivity of a tubular body holder improves.

Since the first aspect of the present invention is configured as described above, it is possible to ensure sealing performance and prevent the tubular body from being bitten.

Since the second aspect of the present invention is configured as described above, the sealing performance can be further improved.

Since the third aspect of the present invention is configured as described above, the productivity of the tubular body holder can be improved.

Since the fourth aspect of the present invention has the above configuration, the sealing performance can be further improved.

Since the fifth aspect of the present invention is configured as described above, the productivity of the tubular body holder can be improved.

It is a perspective view which shows the temporary fix | stop state of the tubular body holder which concerns on one Embodiment of this invention. It is an expansion perspective view which shows the temporary fix | stop state of the engaging part of the tubular body holder which concerns on one Embodiment of this invention. It is a perspective view which shows the final fastening state of the tubular body holder which concerns on one Embodiment of this invention. It is an expansion perspective view which shows the final fastening state of the engaging part of the tubular body holder which concerns on one Embodiment of this invention. It is a top view which shows the temporary fix | stop state of the tubular body holder which concerns on one Embodiment of this invention. It is a top view which shows the final fastening state of the tubular body holder which concerns on one Embodiment of this invention. FIG. 7 is an enlarged cross-sectional view taken along a line 7-7 in FIG. FIG. 8 is an enlarged sectional view taken along the line 8-8 in FIG. 5. FIG. 9 is an enlarged cross-sectional view taken along the line 9-9 in FIG. FIG. 10 is an enlarged cross-sectional view taken along the line 10-10 in FIG. It is a perspective view which shows the use condition of the tubular body holder which concerns on one Embodiment of this invention.

Next, an embodiment of the tubular body holder of the present invention will be described with reference to FIGS.
In the drawings, members (components) having the same or corresponding functions are denoted by the same reference numerals and description thereof is omitted as appropriate.

As shown in FIG. 11, a hose clamp 10 (tubular body holder) as a tubular body holder of this embodiment is attached to an outer peripheral surface 12A of a pipe 12 (tubular body) as an example of a tubular body. Is fixed to a pipe 13 (another member) as an example of another member. Moreover, the hose clamp 10 is comprised with the resin material, for example.

As shown in FIG. 3, the hose clamp 10 includes a holding portion 14. The holding portion 14 of the hose clamp 10 has a circular shape that surrounds the entire circumference of the pipe 12 along the outer peripheral surface 12 A of the pipe 12.

As shown in FIG. 1, the holding portion 14 of the hose clamp 10 has an open portion 16 formed at one location along the circumferential direction (the direction of arrow A in FIG. 1). In addition, a first engaging portion 18 as an engaging portion is integrally formed on the outer peripheral portion of one end portion 14A at both end portions of the holding portion 14 forming the open portion 16 so as to protrude from the other end. On the outer peripheral portion of the portion 14B, a second engaging portion 20 as an engaging portion is provided by being integrally formed.

As shown in FIG. 5, the first engaging portion 18 and the second engaging portion 20 are disposed to face each other. The first engaging portion 18 is a plate-like base portion 18A extending from the outer peripheral surface 14C of the holding portion 14 to the outside in the radial direction of the holding portion 14, and a plate extending from the longitudinal intermediate portion of the base portion 18A toward the second engaging portion 20. And a male portion 18B. On the other hand, the second engaging portion 20 is a plate-like base portion 20A extending from the outer peripheral surface 14C of the holding portion 14 to the outside in the radial direction of the holding portion 14, and from the intermediate portion in the longitudinal direction of the base portion 20A toward the first engaging portion 18. And an extending female portion 20B.

An engaging claw 22 is formed on the distal end portion of the male portion 18B so as to protrude outward in the radial direction of the holding portion 14. On the other hand, the female part 20 B has an outer peripheral side wall 20 C and an inner peripheral side wall 20 D, and the opening is directed to the first engaging part 18. In addition, an engagement recess 24 for final fastening and an engagement recess 26 for temporary fixing are formed on the inner peripheral surface of the outer peripheral side wall 20C of the female portion 20B. It is the opening side. Accordingly, when the male part 18B is inserted into the female part 20B from the opening and the engaging claw 22 of the male part 18B is engaged with the engaging concave part 26 for temporary fixing of the female part 20B, the hose clamp 10 is shown in FIG. And it will be in the temporary fix | stop state shown in FIG. Further, when the engaging claw 22 of the male portion 18B is engaged with the engaging recess 24 for final fastening of the female portion 20B, the hose clamp 10 is in the final fastening state shown in FIGS.

As shown in FIG. 7, a protruding portion 28 is formed so as to protrude radially inward of the holding portion 14 at one end portion in the width direction of the outer peripheral side wall 20C of the female portion 20B. On the other hand, at the end of the inner peripheral side wall 20D of the female part 20B opposite to the convex part 28 in the width direction, a convex part 30 is formed so as to protrude outward in the radial direction of the holding part 14. By sliding these convex portions 28 and convex portions 30 with both ends in the width direction of the male portion 18B, the male portion 18B and the female portion 20B can be prevented from shifting in the width direction. Further, the sliding surfaces 28A of the convex portion 28 with both ends of the male portion 18B in the width direction and the sliding surfaces 30A of the convex portion 30 with both ends of the male portion 18B in the width direction are tapered toward the tip side. It has become. For this reason, when removing the hose clamp 10 in the final tightening state, the first engagement portion 18 and the second engagement portion 20 are twisted to easily engage the male portion 18B and the female portion 20B. It can be canceled.

As shown in FIG. 6, a plurality of non-slip 32 are formed in the base portion 18 A of the first engagement portion 18 and the base portion 20 A of the second engagement portion 20 so as to protrude in directions away from each other. For this reason, when an operator grasps base 18A of the 1st engagement part 18 and base 20A of the 2nd engagement part 20, and moves to the direction (arrow B direction of Drawing 6) used as a final tightening state. The anti-slip 32 makes it difficult for the operator's hand to slip and improves workability.

As shown in FIG. 2, the opening 16 of the hose clamp 10 includes a circumferential division 16A, a first width division 16B, and a second width division 16C. The circumferential dividing portion 16A is formed along the central portion in the width direction (in the direction of arrow W in FIG. 2) of the contact surface (inner circumferential surface) 14D of the holding portion 14 with the pipe 12. In addition, you may form 16 A of circumferential direction division parts along intermediate parts other than the center part of the width direction of contact surface 14D of the holding | maintenance part 14. FIG. The first width direction division portion 16B extends from one end of the circumferential direction division portion 16A along the width direction of the contact surface 14D, and the second width direction division portion 16C is the other end of the circumferential direction division portion 16A. Extends in the direction opposite to the first width direction dividing portion 16B along the width direction of the contact surface 14D.

Therefore, as shown in FIG. 4, when the hose clamp 10 is in the final tightening state, the two

relief portions

40 and 42 are recessed at different positions along the circumferential direction in the inner peripheral portion of the holding portion 14. ing. Further, the escape portion 40 has an inclined surface 40A having a shape in which one of both end portions of the first width direction division portion 16B of the holding portion 14 is cut out in an inclined manner toward the tip, and the shape in the final tightened state is The holding portion 14 has a triangular shape as viewed from the width direction (the arrow W direction in FIG. 4). Further, the escape portion 42 has an inclined surface 42A in which the escape portion 40 side, which is one of both end portions of the second width direction division portion 16C in the holding portion 14, is cut out in an inclined manner toward the tip. The shape in the tightened state is a triangle when viewed from the width direction of the holding portion 14 (the direction of the arrow W in FIG. 4).

Therefore, when the pipe 12 shown in FIG. 3 is made of a soft material, and the hose clamp 10 is changed from the temporarily fixed state to the final tightened state, when a part of the pipe 12 is loosened, the

relief portions

40 and 42 are formed. In addition, a part of the slack pipe 12 enters. Further, since the

escape portions

40 and 42 are formed at different positions along the circumferential direction in the inner peripheral portion of the holding portion 14, the escape portion 40 is taken along the width direction (arrow W direction in FIG. 3) of the holding portion 14. , 42 are not continuous. That is, the

escape portions

40 and 42 do not cross the holding portion 14. As a result, the sealing performance of the holding portion 14 is not impaired by the

escape portions

40 and 42. Furthermore, the

escape portions

40 and 42 have inclined

surfaces

40A and 42A in a shape in which the

end portions

14A and 14B of the holding portion 14 are notched toward the tip, and the shape in the final tightened state is the holding portion 14. The

relief portions

40 and 42 have shapes that are easy to mold.

As shown in FIG. 3, a protrusion 46 is formed to protrude toward the inner peripheral side of the holding portion 14 at the center in the width direction of the contact surface 14 D with the pipe 12 in the holding portion 14. Has a continuous ring shape along the circumferential direction in the final tightening state. In addition, you may form the protrusion 46 in the width direction intermediate part other than the center part of the width direction of contact surface 14D.

As shown in FIG. 8, at one end portion 14 A of the holding portion 14 in the opening portion 16, the protrusion 46 has a triangular cross section formed along the circumferential division portion 16 A. Moreover, as shown in FIG. 9, in the other end part 14B of the holding | maintenance part 14 in the open part 16, the protrusion 46 becomes a cross-sectional triangle shape formed along the circumferential direction division | segmentation part 16A. Then, as shown in FIG. 7, when the end portion 14A and the end portion 14B of the holding portion 14 overlap in the width direction of the holding portion 14, the projecting portion 46 has a cross-sectional mountain shape formed along the circumferential division portion 16A. It is supposed to be.

Further, as shown in FIG. 10, the protrusion 46 has a cross-sectional mountain shape formed along the circumferential direction of the holding portion 14 in the portion excluding the end portions 14 A and 14 B in the holding portion 14.

Therefore, in the final tightened state in which the hose clamp 10 holds the pipe 12, the protrusion 46 formed so as to protrude toward the inner peripheral side on the contact surface 14 D with the pipe 12 in the holding portion 14 connects the pipe 12 to the pipe 13 side. The entire circumferential direction of the pipe 12 is strongly pressed toward the end.

(Action / Effect)
Next, the operation and effect of this embodiment will be described.
In this embodiment, as shown in FIG. 11, when connecting the pipe 12 to the pipe 13, as shown in FIGS. 1 and 2, the male portion 18B formed in the first engaging portion 18 of the hose clamp 10 is provided. The engaging claw 22 is engaged with an engaging recess 26 for temporary fixing of the female portion 20B formed in the second engaging portion 20 to be in a temporarily fixed state. Then, the hose clamp 10 in a temporarily fixed state is attached to the outer peripheral portion of one end of the pipe 12, and the outer peripheral surface 12 A of the pipe 12 is surrounded by the holding portion 14. Thereafter, the end of the pipe 13 is inserted into one end of the pipe 12.

Next, the operator holds the base portion 18A of the first engagement portion 18 and the base portion 20A of the second engagement portion 20 and moves in a direction (arrow B direction in FIG. 6) where the operator is in the final tightening state. As a result, when the engaging claw 22 of the male part 18B and the engaging concave part 24 for final fastening of the female part 20B are engaged, the hose clamp 10 is in the final fastening state as shown in FIGS. The pipe 12 is clamped by the clamp 10 and held in the pipe 13.

For this reason, in the hose clamp 10 of this embodiment, the outer peripheral part of the pipe 12 can be surrounded by the holding part 14, and a sealing property is ensured. In addition, when the pipe 12 is made of a soft material and the hose clamp 10 is changed from the temporarily fixed state to the final tightened state, when a part of the pipe 12 is slackened, a concave portion is formed in the inner peripheral portion of the holding portion 14. A part of the slackened pipe 12 enters the

escape portions

40 and 42. For this reason, it is possible to prevent a part of the slackened pipe 12 from being bitten between both open ends.

Further, in the hose clamp 10 of the present embodiment, the open portion 16 includes a circumferentially divided portion 16A along the central portion in the width direction (direction of arrow W in FIG. 2) of the contact surface 14D of the holding portion 14 with the pipe 12. The first width direction dividing portion 16B extending along the width direction of the contact surface 14D from one end of the circumferential direction division portion 16A, and the first along the width direction of the contact surface 14D from the other end of the circumferential direction division portion 16A. It is comprised from the width direction division part 16B and the 2nd width direction division part 16C extended in the reverse direction. Therefore, as shown in FIG. 3, when the hose clamp 10 is in the final tightening state, the two

relief portions

40 and 42 are recessed at different positions along the circumferential direction in the inner peripheral portion of the holding portion 14. Therefore, the portion where the escape portion 40 is formed can be sealed with the end portion 14B of the holding portion 14 on the escape portion 42 side, and the location where the escape portion 42 is formed is the end portion of the holding portion 14 on the escape portion 40 side. Can be sealed with 14A. That is, the

escape portions

40 and 42 do not continue along the width direction of the holding portion 14 (the direction of the arrow W in FIG. 4). As a result, the sealing performance of the holding portion 14 is not impaired by the

escape portions

40 and 42, and the sealing performance can be improved.

Further, the hose clamp 10 of the present embodiment has the

inclined portions

40A, 42A in the shape in which the

escape portions

40, 42 are notched so as to be inclined toward the tip of the

end portions

14A, 14B of the holding portion 14. The shape in the tightened state is a triangle when viewed from the width direction of the holding portion 14. For this reason, since the

escape parts

40 and 42 become a shape which is easy to shape | mold, the productivity of the hose clamp 10 improves.

Further, in the hose clamp 10 of the present embodiment, in the final tightened state in which the pipe 12 is held, the protruding portion 46 formed to protrude toward the inner peripheral side on the contact surface 14D of the holding portion 14 with the pipe 12 is 12 is continuously and strongly pressed along the circumferential direction toward the pipe 13 side. For this reason, the sealing performance of the connecting portion by the hose clamp 10 is further improved.

Further, in the hose clamp 10 of the present embodiment, the first engagement portion 18 and the second engagement portion 20 that hold the open portion 16 in the final tightening state by engaging the male portion 18B and the female portion 20B, The holding part 14 can be integrally formed. For this reason, the productivity of the hose clamp 10 is improved.

Moreover, in the hose clamp 10 of this embodiment, as shown in FIG. 7, the convex part 28 formed in the one end part of the width direction in the outer peripheral side wall 20C of the female part 20B, and the width direction in the inner peripheral side wall 20D of the female part 20B The convex part 30 formed on the opposite end of the convex part 28 slides on both ends in the width direction of the male part 18B. For this reason, it can prevent that the male part 18B and the female part 20B shift | deviate in the width direction. As a result, the temporarily fixed state of the hose clamp 10 is difficult to come off. Furthermore, the sliding surfaces 28A of the convex portion 28 with both ends of the male portion 18B in the width direction and the sliding surfaces 30A of the convex portion 30 with both ends of the male portion 18B in the width direction are tapered toward the tip side. ing. For this reason, when removing the hose clamp 10 in the final tightening state, the first engagement portion 18 and the second engagement portion 20 are twisted to easily engage the male portion 18B and the female portion 20B. Can be canceled.

(Other embodiments)
In the above, the present invention has been described in detail with respect to specific embodiments. However, the present invention is not limited to the above embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in the said embodiment, although the holding | maintenance part 14 of the hose clamp 10 was made into circular shape, if the shape of the holding | maintenance part 14 of the hose clamp 10 comprises the shape surrounding along the outer peripheral surface of a tubular body, it will be elliptical. Other shapes such as a shape may be used.

Moreover, in the said embodiment, although it was set as the structure provided with the open part 16 in one place along the circumferential direction in the holding part 14 of the hose clamp 10, it replaced with this and two places along the circumferential direction in the holding part 14 It is good also as a structure provided with the open part 16 above.

Further, in the above embodiment, the

relief portions

40 and 42 of the hose clamp 10 are notched so that one of both end portions of the holding portion 14 is inclined toward the tip, and the shape in the final tightened state is the width direction of the holding portion 14. As seen from the triangle. Instead, the

escape portions

40 and 42 may have a shape in which both end portions of the holding portion 14 are notched in an inclined manner toward the tip. Further, the shape of the

relief portions

40 and 42 in the final tightening state may be a shape other than a triangle when viewed from the width direction of the holding portion 14, for example, other shapes such as a semicircular shape.

In the above embodiment, when the hose clamp 10 is in the final tightening state, the

relief portions

40 and 42 are recessed at two different locations along the circumferential direction of the inner peripheral portion of the holding portion 14. Instead of this, when the hose clamp 10 is in the final tightening state, the escape portion may be recessed at one place on the inner peripheral portion of the holding portion 14 or at three or more different places.

In the above embodiment, the engagement claw 22 of the male portion 18B formed on the first engagement portion 18 of the hose clamp 10 is engaged with the engagement recess for the final tightening of the female portion 20B formed on the second engagement portion 20. However, the configuration of the first engagement portion 18 and the second engagement portion 20 is not limited to the configuration of the present embodiment.

Moreover, in the said embodiment, although the hose clamp 10 as a tubular body holder of this invention was used for the connection part of the pipe 12 as an example of a tubular body, and the piping 13 as another member, it replaced with this. The tubular body holder of the present invention may be used for other connecting parts such as connecting a joint provided in an opening formed in a wall and a tubular body inserted through the opening. .

Claims

A shape that surrounds the entire circumference of the tubular body along the outer peripheral surface of the tubular body, and a holding portion provided with an open portion in at least one place along the circumferential direction;
Engaging portions that are respectively provided on the outer peripheral portions of both end portions of the holding portion and are held in a final tightened state in which the both end portions are pulled together,
Recessed in at least one inner peripheral part of the both ends, and a relief part into which a part of the tubular body enters in the final tightening state;
A tubular body holder.
The open portion extends along the widthwise direction of the contact surface from a circumferentially divided portion along the widthwise intermediate portion of the contact surface with the tubular body in the holding portion, and one end of the circumferentially divided portion. A first width direction dividing portion, and a second width direction dividing portion extending in the opposite direction from the first width direction dividing portion along the width direction of the contact surface from the other end of the circumferential direction dividing portion, The tubular body holder according to claim 1, wherein the relief portion is formed in the first width direction division portion and the second width direction division portion.
The escape portion has a shape in which one of both end portions of the holding portion is cut out in an inclined manner toward the tip, and the shape in the final tightened state is a triangle when viewed from the width direction of the holding portion. The tubular body holder according to claim 1 or 2.
The holding portion is formed so as to protrude toward the inner peripheral side on the contact surface with the tubular body, and the open portion is formed along the circumferentially divided portion. The tubular body holder according to claim 2 or 3, further comprising a protrusion that presses the entire region in the direction.
The engagement portion includes a male portion and a female portion integrally formed with the holding portion, and the male portion and the female portion are engaged to hold the main fastening state. The tubular body holder according to claim 1.