JP2013181650A - Boot band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a sealing property and assemblability by preventing occurrence of deformation of an engagement claw and an engagement hole of a strip plate-like member.SOLUTION: A first tool claw 50 and an engagement claw 30 are arranged on one end side 21 of a strip plate-like member 20; a through-hole 23 is formed between the first tool claw 50 and engagement claw 30 located on a tip side of the strip plate-like member 20; an engagement piece 40 and a second tool claw 60 are arranged on the other end side 22 of the strip plate-like member 20; the strip plate-like member 20 is wound around a boot to be shaped into a ring-like form to superpose the one end side 21 and the other end side 22 thereof on each other to set the other end side 22 on an inner diameter side; the engagement piece 40 located on the tip side of the strip plate-like member 20 is inserted in the through-hole 23 from the inner diameter side to the outer diameter side; the first tool claw 50 and the second tool claw 60 are forcedly brought close to each other; and thereby the engagement piece 40 led out from the through-hole 23 to the outer diameter side is locked to the engagement claw 30.

Description

  The present invention is attached to fixed and sliding constant velocity universal joints incorporated in, for example, drive shafts and propeller shafts, and fastens and fixes boots to prevent foreign substances from entering the joints and preventing lubricant leakage from inside the joints. Related to the boot band.

  For example, there are two types of constant velocity universal joints that are used as means for transmitting a rotational force from an automobile engine to wheels at a constant velocity: a fixed constant velocity universal joint and a sliding constant velocity universal joint. Both of these constant velocity universal joints have a structure in which two shafts on the driving side and the driven side are connected so that rotational torque can be transmitted at a constant speed even if the two shafts have an operating angle.

  Since the drive shaft that transmits power from the engine of the automobile to the driving wheel needs to correspond to the angular displacement and axial displacement due to the change in the relative positional relationship between the engine and the wheel, the engine side (inboard side) ) And a fixed type constant velocity universal joint on the drive wheel side (outboard side), and both constant velocity universal joints are connected by an intermediate shaft.

  These sliding type constant velocity universal joints and fixed type constant velocity universal joints are designed to prevent the leakage of grease and other lubricants sealed inside the joint and prevent foreign matter from entering from the outside of the joint. A boot is mounted between the joint member and the intermediate shaft. This type of boot is secured by being fastened and fixed to the outer joint member and the intermediate shaft by a metal boot band (see, for example, Patent Document 1).

  As shown in FIGS. 21A and 21B, the conventional boot band 110 is provided with an engagement claw 130 and a first tool claw 150 on one end side 121 of the band plate-like member 120 and at the other end side 122. A structure is provided in which a hole 140 and a second tool claw 160 are provided. In the case of this boot band 110, two engagement claws 130 and two engagement holes 140 are provided corresponding to the engagement claws 130.

  As shown in FIG. 22, the belt-like member 120 is wound around a boot (not shown) and formed into a ring shape, and the one end side 121 and the other end side 122 of the belt-like member 120 are overlapped. 23, the first claw 150 and the second tool claw 160 are forcibly brought close to each other with a tool (not shown) to lock the engagement claw 130 into the engagement hole 140. Thus, the boot is fastened to the outer joint member and the intermediate shaft.

Japanese Patent No. 4403728

  By the way, in the conventional boot band 110, as shown in FIG. 22, the band plate member 120 is formed in a ring shape, and the one end side 121 and the other end side 122 of the band plate member 120 are overlapped. When the first tool claw 150 and the second tool claw 160 are forced to approach each other, the resistance when the other end side 122 of the strip plate member 120 gets over the engagement claw 130 on the one end side 121 is increased. large.

  That is, as shown in FIG. 22, in a state where the one end side 121 and the other end side 122 of the strip plate member 120 are overlapped, the one end side 121 provided with the engagement claw 130 is on the inner diameter side, and the engagement hole In this state, the other end side 122 provided with 140 is placed on the outer diameter side. Therefore, since the engagement claw 130 on the one end side 121 located on the inner diameter side has a shape protruding to the outer diameter side, the other end side 122 located on the outer diameter side is engaged with the one end side 121 located on the inner diameter side. When getting over the claw 130, the engagement claw 130 is crushed to the inner diameter side by the band plate member 120, and conversely, the peripheral edge portion of the engagement hole 140 is pushed up to the outer diameter side by the engagement claw 130.

  In this way, when the engagement claw 130 and the engagement hole 140 are deformed, the deformed engagement is caused when the boot band 110 that forcibly brings the first tool claw 150 and the second tool claw 160 into close proximity is tightened. It becomes difficult to fasten and fix the boot to the outer joint member and the intermediate shaft by the joint claw 130 and the engagement hole 140, and there is a possibility that the sealing performance and the assembling performance are deteriorated.

  Therefore, the present invention has been proposed in view of the above-mentioned problems, and its object is to prevent the occurrence of deformation of the engagement claws and the engagement holes of the band plate member, An object of the present invention is to provide a boot band capable of improving assemblability.

  As a technical means for achieving the above-mentioned object, a boot band according to the present invention is provided with a first tool claw and a first engaging portion on one end side of a band plate-shaped member and a band plate-shaped member. A through hole is formed between the first tool claw located on the distal end side of the belt and the first engagement portion, and the second engagement portion and the second tool claw are provided on the other end side of the strip plate member. The strip plate member is wound around the boot and formed into a ring shape, and one end side and the other end side thereof are overlapped so that the other end side is the inner diameter side, and positioned on the tip end side of the strip plate member. The second engaging part to be inserted is inserted into the through hole from the inner diameter side to the outer diameter side, and the first tool claw and the second tool claw are forcibly brought close to each other to lead out from the through hole to the outer diameter side. The second engaging portion thus formed is locked to the first engaging portion.

  In the present invention, the band plate member is wound around the boot and formed into a ring shape, and the one end side and the other end side are overlapped so that the other end side is the inner diameter side, and the band plate member is positioned on the front end side of the band plate member. The second engaging part to be inserted is inserted into the through hole from the inner diameter side to the outer diameter side, and the first tool claw and the second tool claw are forcibly brought close to each other to lead out from the through hole to the outer diameter side. The boot is fastened to the fixed member by the boot band by locking the second engaging portion thus made to the first engaging portion.

  When tightening the boot band, the other end side of the band plate member was pressed on one end side by overlapping the other end side with the other end side of the band plate member so as to be the inner diameter side. State. In this state, the second engaging portion on the other end side of the band plate member is inserted into the through hole from the inner diameter side to the outer diameter side, and the second engaging portion led out from the through hole to the outer diameter side. Is locked to the first engaging portion. Thereby, the first tool claw and the second tool claw are forcibly approached from the state in which the band plate member is formed in a ring shape and one end side and the other end side of the band plate member are overlapped. Even when trying to make it, the 1st engaging part and the 2nd engaging part do not change.

  In the present invention, it is desirable to bend the root portion of the second engaging portion located on the other end side of the band plate-like member to the outer diameter side. If it does in this way, the 2nd engaging part of the other end side of a band plate-shaped member is penetrated from an inner diameter side to an outer diameter side to a through hole, and is derived from the through hole and is positioned on the outer diameter side. It becomes easy to lock the second engaging portion on the other end side of the strip-shaped member to the first engaging portion on the one end side of the strip-shaped member.

  The first engaging portion in the present invention is formed by being cut and raised so as to incline toward the other end side and the outer diameter side of the band plate-like member, and is arranged at intervals in the width direction of the band plate-like member. The second engaging part is provided integrally with the neck part inserted between the claw parts of the engaging claw and the front end side of the neck part. The structure comprised by the engagement piece which consists of a head latched by the nail | claw part of a nail | claw is possible. In the case of this structure, the neck portion of the engagement piece led out from the through hole is inserted between the two claw portions of the engagement claw, and the head located on the distal end side of the neck portion of the engagement piece is inserted into the claw of the engagement claw The boot band can be tightened by engaging with the portion.

  The first engaging portion in the present invention is configured by an engaging claw formed by being cut and raised so as to be inclined toward the other end side and the outer diameter side of the band plate-like member, and the second engaging portion is Further, it is possible to have a structure composed of an engagement piece that is formed by bending the tip end toward the inner diameter side and has a bent portion that is locked in a state of being hooked on the tip end of the engagement claw. In the case of this structure, the boot band can be tightened by hooking and locking the bent portion of the engaging piece led out from the through hole to the tip of the engaging claw.

  The first engagement portion in the present invention is formed by cutting and raising so as to incline toward the other end side and the outer diameter side of the strip plate-like member, and its tip extends in parallel along the strip plate-like member. The second engaging portion is formed by bending the tip of the second engaging portion toward the inner diameter side, and is locked so as to hold the claw portion of the engaging claw. A structure composed of an engagement piece having a bent portion is possible. In the case of this structure, it is possible to tighten the boot band by hooking the bent portion of the engagement piece led out from the through hole to the nail portion of the engagement claw so as to hold the claw portion. .

  The first engaging portion in the present invention is configured by an engaging claw formed by being cut and raised so as to be inclined toward the other end side and the outer diameter side of the band plate-like member, and the second engaging portion is A structure that is formed so as to penetrate from the inner diameter side to the outer diameter side and that is engaged with the engaging claw inserted therein is possible. In the case of this structure, the boot band can be tightened by inserting and engaging the engaging claw into the engaging hole led out from the through hole.

  The first engagement portion in the present invention is formed by cutting and raising so as to incline toward the other end side and the outer diameter side of the strip plate-like member, and its tip extends in parallel along the strip plate-like member. The second engaging portion is formed so as to penetrate from the inner diameter side to the outer diameter side, and the engaging claw is inserted in a state where the engaging claw is inserted therethrough. The structure comprised by the engagement hole latched so that it may be pinched | interposed with a part is possible. In the case of this structure, the boot band can be tightened by inserting the engagement claw into the engagement hole led out from the through hole and engaging the claw portion with the engagement claw.

  According to the present invention, when the boot is fastened to the fixed member by the boot band, the one end side and the other end side of the band plate member are overlapped so that the other end side is the inner diameter side. The other end side is pressed with one end side, and in this state, the second engagement portion on the other end side of the band plate member is inserted into the through hole from the inner diameter side to the outer diameter side, and the through hole The second engaging portion led out to the outer diameter side is locked to the first engaging portion. Thus, the first tool claw and the second tool claw are forcibly brought close to each other from a state in which the band-shaped member is formed into a ring shape and one end side and the other end side of the band-shaped member are overlapped. Even in this case, the first engaging portion and the second engaging portion are not deformed. As a result, it is possible to provide a boot band excellent in sealing performance and assembly performance.

In 1st embodiment of this invention, (A) is a top view shown in the state which unfolded the boot band, (B) is sectional drawing of (A). It is sectional drawing which shows the state before the clamp | tightening which shape | molded the strip | belt-plate-shaped member of FIG. 1 in the ring shape, and overlap | superposed the one end side and other end side of the strip | plate-shaped member. 2 is a cross-sectional view showing a state after tightening in which the first engagement portion is forcibly brought close to the first engagement portion from the state of FIG. 2 to lock the second engagement portion to the first engagement portion. FIG. (A) is the elements on larger scale which show the modification of a 1st engaging part, (B) is a front view of (A), (C) is a side view of (B). In 2nd embodiment of this invention, (A) is a top view shown in the state which unfolded the boot band, (B) is sectional drawing of (A). It is a partial expanded sectional view which shows the state which locked the 2nd engaging part of FIG. 5 (B) to the 1st engaging part. (A) is the elements on larger scale which show the modification of a 1st engaging part, (B) is a front view of (A), (C) is a side view of (B). In 3rd embodiment of this invention, (A) is a top view shown in the state which unfolded the boot band, (B) is sectional drawing of (A). It is a partial expanded sectional view which shows the state which locked the 2nd engaging part of FIG. 8 (B) to the 1st engaging part. (A) is the elements on larger scale which show the modification of a 1st engaging part, (B) is a front view of (A), (C) is a side view of (B). In 4th embodiment of this invention, (A) is a top view shown in the state which unfolded the boot band, (B) is a sectional view of (A). It is a partial expanded sectional view which shows the state which locked the 2nd engaging part of FIG. 11 (B) to the 1st engaging part. (A) is the elements on larger scale which show the modification of a 1st engaging part, (B) is a front view of (A), (C) is a side view of (B). In 5th embodiment of this invention, (A) is a top view shown in the state which unfolded the boot band, (B) is sectional drawing of (A). It is a partial expanded sectional view which shows the state which latched the 2nd engaging part of FIG.14 (B) to the 1st engaging part. (A) is the elements on larger scale which show the modification of a 1st engaging part, (B) is a front view of (A), (C) is a side view of (B). It is a partial expanded sectional view which shows the state which pressed down the one end side of the strip | belt-plate-shaped member with the modification of the 2nd tool nail, and the 2nd tool nail. (A) is a partially enlarged plan view showing a modified example of the first tool claw, and (B) is a partially enlarged plan view showing a modified example of the second tool claw. It is a front view which shows the state which fastened and fixed the boot to the outer joint member and intermediate shaft of the constant velocity universal joint with the boot band. It is sectional drawing of FIG. It is a conventional boot band, (A) is a top view which shows the state which unfolded the boot band, (B) is a front view of (A). It is a front view which shows the state before the clamp | tightening which shape | molded the strip | belt-plate-shaped member of FIG. 21 in the ring shape, and overlap | superposed the one end side and other end side of the strip | belt-plate shaped member. It is a front view which shows the state after the clamp | tightening which locked the engagement nail | claw to the engagement hole by making the 1st tool nail and the 2nd tool nail approach forcibly from the state of FIG.

  Embodiments of the boot band according to the present invention will be described in detail below. As a constant velocity universal joint to which the boot band in the following embodiments is applied, it is incorporated in a drive shaft of an automobile and connects two shafts of a drive side and a driven side, and the two shafts take a working angle and rotate at a constant speed. An undercut-free type constant velocity universal joint which is one of fixed type constant velocity universal joints having a structure for transmitting The present invention can also be applied to other fixed type constant velocity universal joints such as a Rzeppa type constant velocity universal joint, a double offset type constant velocity universal joint, a cross groove type constant velocity universal joint, a tripod type, and the like. The present invention can also be applied to a sliding type constant velocity universal joint such as a speed universal joint.

  The constant velocity universal joint shown in FIGS. 19 and 20 includes an outer joint member 73 in which arc-shaped track grooves 71 extending in the axial direction are formed at a plurality of locations on the spherical inner peripheral surface 72 at equal intervals in the circumferential direction, and the outer side thereof. An inner joint member 76 in which arc-shaped track grooves 74 that are paired with the track grooves 71 of the joint member 73 are formed at a plurality of positions on the spherical outer peripheral surface 75 at equal intervals in the circumferential direction, and the track grooves 71 of the outer joint member 73. And a ball 77 interposed between the inner and outer joint members 76 and the track groove 74 of the inner joint member 76, and a spherical inner peripheral surface 72 of the outer joint member 73 and a spherical outer peripheral surface 75 of the inner joint member 76. The main part is comprised with the cage 78 which hold | maintains.

  The opening side portion of the track groove 71 of the outer joint member 73 and the back side portion of the track groove 74 of the inner joint member 76 are formed in a straight shape parallel to the joint axial direction so as to increase the operating angle. Yes. One end of the intermediate shaft 79 is connected to the inner joint member 76 by spline fitting. An inner joint member of a sliding type constant velocity universal joint (not shown) is connected to the other end of the intermediate shaft 79 by spline fitting.

  This constant velocity universal joint is made of rubber or resin between the outer joint member 73 and the intermediate shaft 79 in order to prevent leakage of a lubricant such as grease enclosed in the joint and to prevent foreign matter from entering from the outside of the joint. It has a structure with a bellows-like boot 80 made of metal. By encapsulating the lubricant in the inner space of the outer joint member 73 and the boot 80, the lubricity during the operation in which the intermediate shaft 79 rotates while taking an operating angle with respect to the outer joint member 73 is ensured.

  The boot 80 has a large-diameter end portion 81 fastened and fixed to the outer peripheral surface of the outer joint member 73 by the boot band 10, and a small-diameter end portion 82 fixed to the outer peripheral surface of the intermediate shaft 79 by the boot band 10. The sealing property is secured by tightening and fixing with the boot band 10.

  Since the constant velocity universal joint has a function of rotating while taking an operating angle, the boot 80 is made of rubber or resin having a bellows shape that can be expanded and contracted in order to ensure flexibility to follow its behavior. Is used. As the rubber material, chloroprene rubber or silicon rubber having a surface hardness of Hs 50 to 70 is suitable. As the resin material, a thermoplastic polyester elastomer having a surface hardness of HD38-50 or a composition containing a thermoplastic polyester elastomer is suitable.

  The metal boot band 10 that fastens and fixes the above-described boot 80 to the outer joint member 73 and the intermediate shaft 79 has the following structure.

  The boot band 10 in the first embodiment shown in FIGS. 1A and 1B includes a first tool claw 50 and an engagement claw 30 that is a first engagement portion on one end side 21 of the band plate-like member 20. And a through hole 23 is formed between the first claw 50 and the engaging claw 30 located on the front end side of the band plate member 20, and the second end 22 of the band plate member 20 is It has a structure in which an engagement piece 40 as a second engagement portion and a second tool claw 60 are disposed.

  In the case of this embodiment, the first engaging portion provided on one end side 21 of the strip plate member 20 is cut and raised so as to incline toward the other end side 22 and the outer diameter side of the strip plate member 20. The engagement claw 30 has two claw portions 31 that are formed and are spaced apart in the width direction of the band plate-like member 20. The claw portion 31 of the engagement claw 30 has an inclination angle α with respect to the plate surface of the strip plate member 20 of 90 ° or less.

  The second engaging portion provided at the tip of the other end side 22 of the band plate member 20 includes a neck portion 41 having a width dimension smaller than the interval between the two claw portions 31 of the engaging claw 30, and the neck portion 41. And a head portion 42 having a width dimension larger than that of the neck portion 41, and a tapered stepped portion 43 is provided between the neck portion 41 and the head portion 42. The engagement piece 40 is configured. The engagement piece 40 is formed by bending the base portion of the neck portion 41 to the outer diameter side, so that the neck portion 41 and the head portion 42 are arranged in parallel along the longitudinal direction of the strip plate member 20.

  Further, the first tool claw 50 provided on the one end side 21 of the strip plate member 20 has an outer diameter at the peripheral portion of the planar rectangular through-hole 23 that is long along the longitudinal direction of the strip plate member 20. It is formed in a planar semicircular shape by cutting up to the side. The second tool claw 60 provided on the other end side 22 of the band plate-like member 20 raises the cut portion of the band plate-like member 20 to the outer diameter side, whereby both sides of the opening of the band plate-like member 20 are opened. It is formed so as to straddle.

  In this boot band 10, as shown in FIG. 2, the band plate member 20 is wound around a boot (see FIGS. 19 and 20) and formed into a ring shape, and one end side 21 and the other end of the band plate member 20 are formed. The side 22 is overlapped so that the other end side 22 becomes the inner diameter side, and the engagement piece 40 positioned on the distal end side of the strip plate member 20 is inserted into the through hole 23 from the inner diameter side to the outer diameter side. Thus, in a state where the one end side 21 and the other end side 22 of the strip plate member 20 are overlapped, the other end side 22 of the strip plate member 20 is moved from the outer diameter side to the inner diameter side at the one end side 21. It will be in the pressed state.

  From this state, as shown in FIG. 3, the first tool pawl 50 and the second tool pawl 60 are forcibly brought close to each other with a tool (not shown), and are led out from the through hole 23 to the outer diameter side. The engaged piece 40 is hooked and engaged with the engaging claw 30. Specifically, the neck portion 41 of the engagement piece 40 is inserted between the two claw portions 31 of the engagement claw 30, and the claw portion 31 locks the head portion 42 of the engagement piece 40 [FIG. )reference〕. By fastening the boot band 10, the boot is fixed to the outer joint member or the intermediate shaft.

  In this manner, the first tool pawl 50 and the second tool are formed from the state in which the band plate member 20 is formed into a ring shape and the one end side 21 and the other end side 22 of the band plate member 20 are overlapped. Even when the claw 60 is forced to come close to the claw 60, the outer diameter side of the band plate-like member 20 does not get over the engagement claw 30 at the overlapping portion of the band plate-like member 20. 30 and the engagement piece 40 are not deformed.

  In this boot band 10, since the engaging claw 30 has an inclination angle α with respect to the plate surface of the band plate-like member 20 of 90 ° or less, the engaging claw 30 can be securely hooked on the engaging claw 30. ing. Further, by forming the base portion of the engagement piece 40 located on the other end side 22 of the band plate-like member 20 to be bent toward the outer diameter side, the engagement piece 40 is removed from the inner diameter side to the through hole 23. The engagement piece 40, which is inserted into the radial side and is led out from the through hole 23 and positioned on the outer diameter side, is hooked and locked on the engagement claw 30 along the strip plate member 20 positioned on the inner diameter side. Becomes easy.

  In addition, in the boot band 10, although the engagement nail | claw 30 formed by cutting and raising the two nail | claw parts 31 arranged at intervals in the width direction of the strip | belt-plate-shaped member 20 is illustrated, FIG. As shown in (C), the engagement formed by raising the notch portion of the band plate-like member 20 with the two claw portions 31a arranged at intervals in the width direction of the band plate-like member 20 It is also possible to use the claw 30a.

  A boot band 10 according to the second embodiment shown in FIGS. 5A and 5B has a first tool claw 50 and an engagement claw 32 as a first engagement portion on one end side 21 of the band plate-like member 20. And a through hole 23 is formed between the first claw 50 and the engaging claw 32 located on the front end side of the band plate member 20, and the second end 22 of the band plate member 20 is It has a structure in which an engagement piece 44 and a second tool claw 60 as second engagement portions are disposed. In the second embodiment, the only difference from the first embodiment is the engagement claw 32 and the engagement piece 44, and the other parts, that is, the first tool claw 50 and the second tool nail. The tool pawl 60 is denoted by the same reference numerals as those in the first embodiment, and redundant description is omitted.

  In the case of this embodiment, the first engaging portion provided on one end side 21 of the strip plate member 20 is cut and raised so as to incline toward the other end side 22 and the outer diameter side of the strip plate member 20. The engaging claw 32 is formed. The engaging claw 32 has an inclination angle α with respect to the plate surface of the strip plate member 20 of 90 ° or less.

  The second engagement portion provided at the tip of the other end side 22 of the band plate member 20 is constituted by an engagement piece 44 having a bent portion 45 formed by bending the tip toward the inner diameter side. Yes. The engagement pieces 44 are arranged in parallel along the longitudinal direction of the band plate-like member 20 by bending the root portion to the outer diameter side. The bent portion 45 of the engaging piece 44 has a bending angle β of 90 ° or more with respect to the direction in which the engaging piece 44 extends in parallel along the longitudinal direction of the strip plate member 20.

  In this boot band 10, the band plate member 20 is wound around a boot (see FIGS. 19 and 20) and formed into a ring shape, and one end side 21 and the other end side 22 of the band plate member 20 are connected to the other end side. 22 are overlapped so as to be on the inner diameter side, and the engagement piece 44 located on the distal end side of the strip plate member 20 is inserted into the through hole 23 from the inner diameter side to the outer diameter side (see FIG. 2). In a state where the one end side 21 and the other end side 22 of the strip plate member 20 are overlapped in this manner, the other end side 22 of the strip plate member 20 is pressed from the outer diameter side to the inner diameter side at the one end side 21. It will be in the attached state.

  From this state, the first tool pawl 50 and the second tool pawl 60 are forcibly brought close to each other with a tool (not shown), whereby the engagement piece 44 led out from the through hole 23 to the outer diameter side is removed. The engagement claw 32 is hooked and locked (see FIG. 3). Specifically, as shown in FIG. 6, the bent portion 45 at the tip of the engagement piece 44 is hooked and locked to the tip of the engagement claw 32. By fastening the boot band 10, the boot is fixed to the outer joint member or the intermediate shaft.

  In this manner, the first tool pawl 50 and the second tool are formed from the state in which the band plate member 20 is formed into a ring shape and the one end side 21 and the other end side 22 of the band plate member 20 are overlapped. Even when the claw 60 is forced to come close, the outer diameter side of the band plate member 20 does not get over the engagement claw 32 at the overlapping portion of the band plate member 20. 32 and the engagement piece 44 are not deformed.

  In the boot band 10, the engaging claw 32 has an inclination angle α with respect to the plate surface of the band plate-like member 20 of 90 ° or less, and the bent portion 45 of the engagement piece 44 has the engagement piece 44 formed of the band plate-like member. Since the bending angle β with respect to the direction extending in parallel with the longitudinal direction of 20 is 90 ° or more, the hooking engagement of the engaging piece 44 to the engaging claw 32 is ensured. Further, by forming the base portion of the engagement piece 44 located on the other end side 22 of the band plate-like member 20 to be bent to the outer diameter side, the engagement piece 44 is removed from the inner diameter side to the through hole 23. It is easy to insert the engagement piece 44 led out from the through-hole 23 into the radial side and hook and engage the engagement claw 32 with the engagement piece 44.

  In the boot band 10, the engagement claw 32 formed by cutting and raising the strip plate member 20 is illustrated, but as shown in FIGS. 7A to 7C, It is also possible to use the engaging claw 32a formed by raising the cut portion.

  The boot band 10 in the third embodiment shown in FIGS. 8A and 8B has a first tool claw 50 and an engagement claw 33 which is a first engagement portion on one end side 21 of the band plate-like member 20. And a through hole 23 is formed between the first claw 50 and the engaging claw 33 located on the front end side of the band plate member 20, and the second end 22 of the band plate member 20 is It has a structure in which an engaging piece 46 and a second tool claw 60 as second engaging portions are disposed. In this third embodiment, since the only difference from the first embodiment is the engagement claw 33 and the engagement piece 46, the other parts, that is, the first tool claw 50 and the second tool nail. The tool pawl 60 is denoted by the same reference numerals as those in the first embodiment, and redundant description is omitted.

  In the case of this embodiment, the first engaging portion provided on one end side 21 of the strip plate member 20 is cut and raised so as to incline toward the other end side 22 and the outer diameter side of the strip plate member 20. The engaging claw 33 has a claw portion 34 that is formed in parallel and extends in parallel along the strip plate member. The engaging claw 33 has an inclination angle α with respect to the plate surface of the strip plate member 20 of 90 ° or less.

  The second engaging portion provided at the tip of the other end side 22 of the band plate-like member 20 includes an engaging piece 46 having a bent portion 47 formed by bending the tip toward the inner diameter side. Yes. The engagement pieces 46 are arranged in parallel along the longitudinal direction of the band plate-like member 20 by bending the root portion to the outer diameter side. The bending portion 47 of the engaging piece 46 has a bending angle β of 90 ° or more with respect to the direction in which the engaging piece 46 extends in parallel along the longitudinal direction of the strip plate member 20.

  In this boot band 10, the band plate member 20 is wound around a boot (see FIGS. 19 and 20) and formed into a ring shape, and one end side 21 and the other end side 22 of the band plate member 20 are connected to the other end side. 22 are overlapped so as to be on the inner diameter side, and the engagement piece 46 located on the distal end side of the strip plate member 20 is inserted into the through hole 23 from the inner diameter side to the outer diameter side (see FIG. 2). In a state where the one end side 21 and the other end side 22 of the strip plate member 20 are overlapped in this manner, the other end side 22 of the strip plate member 20 is pressed from the outer diameter side to the inner diameter side at the one end side 21. It will be in the attached state.

  From this state, the first tool pawl 50 and the second tool pawl 60 are forcibly brought close to each other with a tool (not shown), whereby the engagement piece 46 led out from the through hole 23 to the outer diameter side is removed. The engaging claw 33 is hooked and locked (see FIG. 3). Specifically, as shown in FIG. 9, the bent portion 47 at the tip of the engagement piece 46 is hooked and locked so as to hold the claw portion 34 at the tip of the engagement claw 33. By fastening the boot band 10, the boot is fixed to the outer joint member or the intermediate shaft.

  In this manner, the first tool pawl 50 and the second tool are formed from the state in which the band plate member 20 is formed into a ring shape and the one end side 21 and the other end side 22 of the band plate member 20 are overlapped. Even when the claw 60 is forced to come close to the claw 60, the outer claw of the band plate-like member 20 does not get over the engagement claw 33 at the overlapping portion of the band plate-like member 20. 33 and the engagement piece 46 are not deformed.

  In the boot band 10, the engaging claw 33 has an inclination angle α with respect to the plate surface of the band plate-like member 20 of 90 ° or less, and the bent portion 47 of the engagement piece 46 has the engagement piece 46 formed of the band plate-like member 20. Since the bending angle β with respect to the direction extending in parallel with the longitudinal direction is 90 ° or more, the hooking engagement of the engagement piece 46 with the engagement claw 33 is ensured. In addition, by forming the base portion of the engagement piece 46 located on the other end side 22 of the band plate-like member 20 to the outer diameter side, the engagement piece 46 is removed from the inner diameter side to the through hole 23. It is easy to insert the engaging piece 46 led out from the through hole 23 into the engaging claw 33 and engage with the engaging claw 33.

  In the boot band 10, the engagement claw 33 formed by cutting and raising the strip plate member 20 is illustrated, but as shown in FIGS. It is also possible to use the engaging claw 33a formed by raising the cut portion.

  A boot band 10 according to the fourth embodiment shown in FIGS. 11A and 11B includes a first tool claw 50 and an engagement claw 35 that is a first engagement portion on one end side 21 of the band plate-like member 20. And a through hole 23 is formed between the first claw 50 and the engaging claw 35 located on the front end side of the band plate member 20, and the second end 22 of the band plate member 20 is A structure is provided in which an engagement hole 48 and a second tool claw 60 as second engagement portions are disposed. In the fourth embodiment, the only difference from the first embodiment is the engagement claw 35 and the engagement hole 48. Therefore, the other parts, that is, the first tool claw 50 and the second tool claw 50 are the same. The tool pawl 60 is denoted by the same reference numerals as those in the first embodiment, and redundant description is omitted.

  In the case of this embodiment, the first engaging portion provided on one end side 21 of the strip plate member 20 is cut and raised so as to incline toward the other end side 22 and the outer diameter side of the strip plate member 20. It is comprised with the engagement nail | claw 35 formed in this way. The engaging claw 35 has an inclination angle α with respect to the plate surface of the strip plate member 20 of 90 ° or less.

  The second engaging portion provided at the tip of the other end side 22 of the band plate-like member 20 is formed so as to penetrate from the inner diameter side to the outer diameter side, and is locked in a state where the engaging claw 35 is inserted. The engagement hole 48 is formed. The engagement hole 48 is formed by bending the distal end portion of the other end side 22 of the strip plate member 20 to the outer diameter side, and the distal end portion thereof is arranged in parallel along the longitudinal direction of the strip plate member 20. Has been.

  In this boot band 10, the band plate member 20 is wound around a boot (see FIGS. 19 and 20) and formed into a ring shape, and one end side 21 and the other end side 22 of the band plate member 20 are connected to the other end side. The other end side 22 of the strip plate member 20 is inserted into the through hole 23 from the inner diameter side to the outer diameter side (see FIG. 2). In a state where the one end side 21 and the other end side 22 of the strip plate member 20 are overlapped in this manner, the other end side 22 of the strip plate member 20 is pressed from the outer diameter side to the inner diameter side at the one end side 21. It will be in the attached state.

  In this state, the first tool pawl 50 and the second tool pawl 60 are forcibly brought close to each other with a tool (not shown), whereby the engagement hole 48 led out from the through hole 23 to the outer diameter side is formed. The engagement claw 35 is hooked and locked (see FIG. 3). Specifically, as shown in FIG. 12, the end of the engagement claw 35 is inserted into the engagement hole 48 and hooked and locked. By fastening the boot band 10, the boot is fixed to the outer joint member or the intermediate shaft.

  In this manner, the first tool pawl 50 and the second tool are formed from the state in which the band plate member 20 is formed into a ring shape and the one end side 21 and the other end side 22 of the band plate member 20 are overlapped. Even when the claw 60 is forced to come close, the outer diameter side of the band plate member 20 does not get over the engagement claw 35 at the overlapping portion of the band plate member 20. 35 and the engagement hole 48 are not deformed.

  In this boot band 10, the engagement claw 35 has an inclination angle α with respect to the plate surface of the band plate-like member 20 of 90 ° or less, so that the engagement hole 48 can be reliably hooked and locked to the engagement claw 35. ing. Further, the engagement hole 48 located on the other end side 22 of the band plate member 20 is bent to the outer diameter side, so that the other end side 22 of the band plate member 20 has an inner diameter at the through hole 23. The other end side 22 of the strip plate member 20 that is inserted from the side to the outer diameter side and is led out from the through hole 23 and positioned on the outer diameter side is connected to one end side 21 of the strip plate member 20 that is positioned on the inner diameter side. The engagement holes 48 can be easily hooked and locked to the engagement claws 35.

  In the boot band 10, the engagement claw 35 formed by cutting and raising the strip plate member 20 is illustrated, but as shown in FIGS. It is also possible to use the engaging claw 35a formed by raising the cut portion.

  The boot band 10 in the fifth embodiment shown in FIGS. 14A and 14B includes a first tool claw 50 and an engagement claw 36 which is a first engagement portion on one end side 21 of the band plate-like member 20. And a through hole 23 is formed between the first claw 50 and the engaging claw 36 located on the front end side of the strip plate member 20, and the second end 22 of the strip plate member 20 is It has a structure in which an engagement hole 49 and a second tool claw 60 as second engagement portions are disposed. In the fifth embodiment, the only difference from the first embodiment is the engagement claw 36 and the engagement hole 49, and the other parts, that is, the first tool claw 50 and the second tool nail. The tool pawl 60 is denoted by the same reference numerals as those in the first embodiment, and redundant description is omitted.

  In the case of this embodiment, the first engaging portion provided on one end side 21 of the strip plate member 20 is cut and raised so as to incline toward the other end side 22 and the outer diameter side of the strip plate member 20. And an engaging claw 36 having a claw portion 37 whose tip is extended in parallel along the belt-like member 20. The engaging claw 36 has an inclination angle α with respect to the plate surface of the strip plate member 20 of 90 ° or less.

  The second engaging portion provided at the tip of the other end side 22 of the band plate-like member 20 is formed so as to penetrate from the inner diameter side to the outer diameter side, and is locked in a state where the engaging claw 36 is inserted. The engagement hole 49 is formed. The engagement hole 49 is formed by bending the distal end portion of the other end 22 of the strip plate member 20 to the outer diameter side, and the distal end portion thereof is arranged in parallel along the longitudinal direction of the strip plate member 20. Has been.

  In this boot band 10, the band plate member 20 is wound around a boot (see FIGS. 19 and 20) and formed into a ring shape, and one end side 21 and the other end side 22 of the band plate member 20 are connected to the other end side. The other end side 22 of the strip plate member 20 is inserted into the through hole 23 from the inner diameter side to the outer diameter side (see FIG. 2). In a state where the one end side 21 and the other end side 22 of the strip plate member 20 are overlapped in this manner, the other end side 22 of the strip plate member 20 is pressed from the outer diameter side to the inner diameter side at the one end side 21. It will be in the attached state.

  In this state, the first tool pawl 50 and the second tool pawl 60 are forcibly brought close to each other with a tool (not shown), whereby the engagement hole 49 led out from the through hole 23 to the outer diameter side is formed. The engaging claw 36 is hooked and locked (see FIG. 3). Specifically, as shown in FIG. 15, the tip of the engagement claw 36 is inserted into the engagement hole 49 and is hooked and locked so as to be sandwiched between the claw portions 37. By fastening the boot band 10, the boot is fixed to the outer joint member or the intermediate shaft.

  In this manner, the first tool pawl 50 and the second tool are formed from the state in which the band plate member 20 is formed into a ring shape and the one end side 21 and the other end side 22 of the band plate member 20 are overlapped. Even when the claw 60 is forced to come close, the outer diameter side of the band plate member 20 does not get over the engagement claw 36 at the overlapping portion of the band plate member 20. 36 and the engagement hole 49 are not deformed.

  In the boot band 10, the engagement claw 36 has an inclination angle α with respect to the plate surface of the band plate-like member 20 of 90 ° or less, so that the engagement hole 49 can be securely hooked and engaged with the engagement claw 36. ing. Further, the engagement hole 49 located on the other end side 22 of the band plate member 20 is bent to the outer diameter side, so that the other end side 22 of the band plate member 20 has an inner diameter at the through hole 23. The other end side 22 of the strip plate member 20 that is inserted from the side to the outer diameter side and is led out from the through hole 23 and positioned on the outer diameter side is connected to one end side 21 of the strip plate member 20 that is positioned on the inner diameter side. The engagement holes 49 can be easily hooked and locked to the engagement claws 36 along the lines.

  In the boot band 10, the engagement claw 36 formed by cutting and raising the strip plate member 20 is illustrated, but as shown in FIGS. 16A to 16C, It is also possible to use the engaging claw 36a formed by raising the cut portion.

  In each embodiment described above, the second tool claw 50 provided on the other end side 22 of the band plate-like member 20 raises the cut portion of the band plate-like member 20 to the outer diameter side, thereby An example of a structure formed so as to straddle both sides of the opening portion of the belt-like member 20 and having the opening portions opened on both sides of the first engaging portion side and the second engaging portion side is shown in FIG. It may be a structure as shown. The second tool claw 51 shown in the figure may be formed by cutting and raising the other end side 22 of the band plate-like member 20 and opening only the second engaging portion side.

  Further, in the first tool claw 50 as shown in FIG. 18 (A), a protruding portion 52 is provided at a portion facing the second tool claw 60, and as shown in FIG. 18 (B), the second tool claw is provided. In FIG. 60, a protruding portion 62 may be provided at a portion facing the first tool claw 50. This is effective in that the tool can be easily hooked on the first tool pawl 50 and the second tool pawl 60 when the boot band 10 is tightened.

  The present invention is not limited to the above-described embodiments, and can of course be implemented in various forms without departing from the gist of the present invention. It includes the equivalent meanings recited in the claims and the equivalents recited in the claims, and all modifications within the scope.

DESCRIPTION OF SYMBOLS 10 Boot band 20 Band plate-like member 21 One end side of band plate-like member 22 Other end side of band plate-like member 30, 32, 33, 35, 36 First engagement part (engagement claw)
40, 44, 46, 48, 49 Second engagement portion (engagement piece, engagement hole)
50 First tool claw 60 Second tool claw 80 Boot 73 Fixed member (outer joint member)
79 Fixed member (intermediate shaft)

Claims (7)

  A first tool claw and a first engagement portion are disposed on one end side of the band plate-like member, and the first tool claw and the first engagement portion are located on the distal end side of the band plate-like member. A through hole is formed between them, a second engaging portion and a second tool claw are disposed on the other end side of the strip plate member, and the strip plate member is wound around a boot to form a ring shape. The one end side and the other end side are overlapped so that the other end side becomes the inner diameter side, and the second engaging portion located on the front end side of the band plate member is removed from the inner diameter side to the through hole. The second engagement portion led out from the through hole to the outer diameter side is inserted into the first engagement by forcing the first tool nail and the second tool nail close to each other. A boot band characterized by being locked to the part.   The boot band according to claim 1, wherein a root portion of the second engaging portion located on the other end side of the band plate-like member is bent to the outer diameter side.   The first engaging portion is formed by being cut and raised so as to incline toward the other end side and the outer diameter side of the band plate-like member, and is arranged at intervals in the width direction of the band plate-like member. It is composed of an engaging claw having two claw portions, and the second engaging portion is provided integrally with the neck portion inserted between the claw portions of the engaging claw and the tip side of the neck portion, The boot band of Claim 1 or 2 comprised by the engagement piece which consists of a head latched by the nail | claw part of an engagement nail | claw.   The first engaging portion is constituted by an engaging claw formed by being cut and raised so as to be inclined toward the other end side and the outer diameter side of the band plate member, and the second engaging portion is The boot band according to claim 1 or 2, wherein the boot band is formed of an engagement piece that is formed by bending its tip toward the inner diameter side and has a bent portion that is locked in a state of being hooked on the tip of the engagement claw. .   The first engaging portion is formed by being cut and raised so as to incline toward the other end side and the outer diameter side of the band plate-like member, and the tip thereof extends in parallel along the band plate-like member. The second engaging portion is formed by bending its tip toward the inner diameter side and is locked so as to hold the claw portion of the engaging claw. The boot band of Claim 1 or 2 comprised by the engagement piece which has a curved part.   The first engaging portion is constituted by an engaging claw formed by being cut and raised so as to be inclined toward the other end side and the outer diameter side of the band plate member, and the second engaging portion is 3. The boot band according to claim 1, wherein the boot band is formed so as to penetrate from the inner diameter side to the outer diameter side and is configured to be engaged in a state where the engagement claw is inserted.   The first engaging portion is formed by being cut and raised so as to incline toward the other end side and the outer diameter side of the band plate-like member, and the tip thereof extends in parallel along the band plate-like member. The engaging claw having a claw portion is formed, and the second engaging portion is formed so as to penetrate from the inner diameter side to the outer diameter side, and the claw of the engaging claw is inserted in a state where the engaging claw is inserted. The boot band of Claim 1 or 2 comprised by the engagement hole latched so that it may be clamped with a part.

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