The present application relates to hose-clamp assemblies and associated fasteners and, more particularly, to hose-clamp assemblies including a flexible fastener for securing a clamp to a hose.
In an effort to reduce costs and improve manufacturing efficiency, manufacturers, such as automotive original equipment manufacturer (“OEM”) customers, have asked that suppliers provide parts having multiple components in a pre-assembled condition. These requests eliminate packaging and simplify handling requirements for the manufacturer, thereby reducing final assembly time.
A common request in the automobile industry is that suppliers attach a pre-positioned clamp to a fuel fill hose, thereby allowing a single operator to install a relatively large hose-clamp assembly. Furthermore, where space limitations present obstacles, the inclusion of a pre-attached, pre-positioned clamp on a hose may eliminate the need for an operator to hold the clamp in place during installation. Therefore, a pre-attached, pre-positioned clamp may be particularly helpful in instances where it is not practical for the operator to hold the clamp due to space constraints.
Various attempts have been made to attach clamps to hoses. For example, clamps have been directly bonded to hoses using various adhesives, tapes, patches, mechanical clips and rivets. However, these attempts have presented various disadvantages. In particular, adhesives, tapes and patches all are susceptible to oil and other contaminants that negatively impact performance, while rivets and mechanical clips raise concerns about connection integrity and emissions.
Accordingly, there is a need for an improved hose-clamp assembly and associated fastener for connecting a clamp to a hose, wherein the fastener is flexible to accommodate hoses of various sizes.
In one aspect, the disclosed hose-clamp assembly may include a hose having an outer surface, a clamp including a band, the band being tightenable about the outer surface of the hose, and a fastener including at least two bonding surfaces connected to the outer surface of the hose, the fastener defining a first elongated channel and a second elongated channel, the first elongated channel extending between the bonding surfaces and receiving a portion of the band therein, wherein the first elongated channel defines a first axis and the second elongated channel defines a second axis, the first axis being generally perpendicular to the second axis.
In another aspect, the disclosed hose-clamp assembly may include an elongated, flexible hose having an outer surface, a clamp including a generally flat band, a screw housing and a worm screw disposed in the screw housing, the worm screw being engaged with the band to tighten the band about the outer surface of the hose in response to rotation of the worm screw, and a fastener including a first side, a second side and at least two bonding surfaces extending from the first side and connected to the outer surface of the hose, the bonding surfaces being contoured to closely engage the outer surface of the hose, the fastener defining a first elongated channel on the first side of the fastener and a second elongated channel on the second side of the fastener, the first elongated channel extending between the bonding surfaces and receiving a portion of the band therein, wherein the first elongated channel defines a first axis and the second elongated channel defines a second axis, the first axis being generally perpendicular to the second axis.
In another aspect, the disclosed fastener may include a body including a first side, a second side generally opposite of the first side, and at least two bonding surfaces extending from the first side, the bonding surfaces being contoured to closely engage a surface of a hose, the first side of the body defining a first elongated channel therein and the second side of the body defining a second elongated channel therein, the first elongated channel extending between the bonding surfaces, wherein the first elongated channel defines a first axis and the second elongated channel defines a second axis, the first axis being generally perpendicular to the second axis.
Other aspects of the disclosed hose-clamp assembly and associated fastener will become apparent from the following description, the accompanying drawings and the appended claims.
Referring to
The hose 12 may be any hose or like structure, such as a pipe or a tube, and may include an outer surface 18. For example, the hose 12 may be a flexible, polymeric automotive hose, such as a fuel fill hose. While a hose 12 having a generally circular cross-section would be typical, those skilled in the art will appreciate that hoses having various shapes and dimension may be used without departing from the scope of the present disclosure.
The clamp 14 may be any clamp having a band 20 capable of receiving the hose 12 and applying a clamping force to the hose 12 (e.g., a clamping force applied in the radial direction). In one example, as shown in
At this point, those skilled in the art will appreciate that most any hose may be used as the hose 12 and most any clamp may be used as the clamp 14 with little or no modification and without departing from the scope of the present disclosure.
The fastener 16 may include a body 26 defining a first elongated channel 28, a second elongated channel 30 and bonding surfaces 32, 34. The first elongated channel 28 may be formed in a first side 36 of the body 26 and may extend between the bonding surfaces 32, 34 to define a first axis A. The second elongated channel 30 may be formed in a second side 38 of the body 26 and may define a second axis B. The first axis A may be generally perpendicular to the second axis B, as shown in
As shown in
The body 26 of the fastener 16 may be formed from any suitable material, such a metallic material, a non-metallic material, a polymeric material or the like. For example, the body 26 of the fastener 16 may be formed from a hard plastic, such as nylon or high-density polyethylene (HDPE).
The first elongated channel 28 may have an annular length L1 (
The bonding surfaces 32, 34 may be formed on the first side 36 of the body 26 and may have an axial length corresponding to the axial length LF of the fastener 16. However, those skilled in the art will appreciate that the axial length of the bonding surfaces 32, 34 may be only a fraction of the axial length LF of the fastener 16, or that the bonding surfaces 32, 34 may be formed as a plurality of discontinuous (or spaced apart) bonding surfaces. Furthermore, as best shown in
The second elongated channel 30 may have an annular length L2 (
Those skilled in the art will appreciate that annular length L2 and/or the thickness T2 of the second elongated channel 30 may be selected to permit flexing of the fastener 16 along the second elongated channel 30, as shown by arrows C1 and C2 in
The hose-clamp assembly 10 may be assembled by placing the band 20 of the clamp 14 against the outer surface 18 of the hose 12 such that the band 20 is generally perpendicular to the hose 12. Then, the fastener 16 may be positioned over a portion of the band 20 such that the band 20 is generally aligned with and received within the first elongated channel 28 of the fastener 16 and the bonding surfaces 32, 34 are positioned against the outer surface 18 of the hose 12. Finally, the bonding surfaces 32, 34 may be securely connected to the outer surface 18 of the hose 12.
Those skilled in the art will appreciate that various techniques may be used for connecting the bonding surfaces 32, 34 of the fastener 16 to the outer surface 18 of the hose 12. In one aspect, the bonding surfaces 32, 34 of the fastener 16 may be connected to the outer surface 18 of the hose 12 with an adhesive (e.g., a cyanoacrylate glue). In another aspect, the bonding surfaces 32, 34 of the fastener 16 may be connected to the outer surface 18 of the hose 12 using a welding technique (e.g., ultrasonic welding). In another aspect, the bonding surfaces 32, 34 of the fastener 16 may be connected to the outer surface 18 of the hose 12 using fastening devices, such as staples, pins, rivets or the like.
Accordingly, in the assembled configuration (
Although various aspects of the disclosed hose-clamp assembly have been shown and described, modifications may occur to those skilled in the art upon reading the specification. The present application includes such modifications and is limited only by the scope of the claims.