Field of the Invention
The present invention generally relates to golf bags having a shoulder strap assembly and including a two strap system that can be converted to a single strap system. In the two strap system, one strap is fitted over one shoulder and the second strap is fitted over the other shoulder so that weight of the bag is borne by both shoulders of a person carrying the bag. When needed, the two straps can be easily converted to a single strap that is comfortably fitted over one shoulder.
Brief Review of the Related Art
Both professional and recreational golfers use their golf bags for many different purposes today. The bags are normally designed to carry clubs and balls, and accessories such as head covers, towels, hats, umbrellas, and golf tees. Many golf courses require that golfers walk the entire course and carry their own bags. Thus, the golfer is constantly placing the bag over his/her shoulders, removing the bag from their shoulders, and placing the bag down or standing-up the bag using a support leg mechanism on the bag. The golfer is also constantly removing and placing different clubs in the bag depending upon the shot being made. Thus, the golf bag needs to be durable, relatively lightweight, and comfortable to carry.
Many golf bags have a two strap system so the golfer can bear the weight of the bag on both shoulders. The first strap fits over a person's first shoulder and the second strap fits over the second shoulder. These dual straps tend to help improve the weight distribution of the bag and less weight stress is placed on each shoulder. The person carrying the bag tends to have better balance while walking with the bag because of this improved weight distribution. However two strap systems have some drawbacks. For example, placing the bag over the first shoulder and placing the bag over the second shoulder can be burdensome. Sometimes, the golfer may easily place the first strap over the first shoulder, but then have difficulty finding and swinging the second strap over the second shoulder. The golfer may have to twist their back and arms at odd angles in order to swing the second shoulder strap over their second shoulder. This turning and twisting can lead to back and arm injuries. Thus, the golfer may wish to use just a single strap in many instances. In this way, the golf bag can be easily slipped over one shoulder. Also, in some instances, caddies will carry two separate golf bags and will want the carrying straps on the bags to easily convert from a double strap system to a single strap system. In such cases, the straps are adjusted so one strap and weight of one golf bag is borne by the left shoulder and one strap and weight of the other golf bag is borne by the right shoulder. Both the double strap and single strap systems need to be durable and have high mechanical strength. In view of the different needs of golfers, the golf gear industry has looked at different ways for making bags having double and single carrying straps.
For example, Mayers, U.S. Pat. No. 6,168,060 discloses a strap system for a golf bag that can be converted from a one shoulder to a two-shoulder type. The strap comprises two layers that may be secured together by hook and loop fasteners and secured to the upper and lower back rings by hooks, so that the strap functions as a one-shoulder strap. Alternatively, strap layers may be separated from each other and the lower ring used as a slip through ring for an elongated belt that encircles the chest of the golfer.
Campbell et al., U.S. Pat. No. 8,186,549 discloses a golf bag having double straps. The secondary strap is connected to the primary strap by a movable engagement device that rotates. The movable engagement device may include a movement limiting piece that prevents the secondary strap from moving too far out of the reach of the person carrying the bag.
Herron et al., U.S. Pat. No. 8,322,585 and Wear et al., U.S. Pat. No. 8,657,168 disclose a golf bag having a strapping system with two main straps. In the double strap configuration, the first strap member has three ends, each of which is attached to the bag, and the second strap member has one free end attached to the bag and one free end attached to a central area of the first strap member. When converting to the single strap configuration, the first strap member is removed from the bag completely, and the free end of the second strap member that was attached to the first strap member is removed therefrom and engaged with the bag.
In many of these systems having double and single carrying straps, it can be awkward and uncomfortable constantly switching from two straps to one strap. In some cases, one of the straps may need to removed completely or detached so that it is hanging off the bag, and this can be a distraction. In other cases, spending time and energy on working the strapping system can lead to fatigue and negatively affect playing performance on the golf course.
There is a need for a golf bag having an improved two strap system that can be converted to a single strap system. A person using the bag should be able to convert from the two-strap to single-strap system and vice versa easily and comfortably. The present invention provides such a shoulder strap assembly and golf bag that is durable, lightweight, easy to carry, and comfortable and includes other advantageous properties and features.
The novel features that are characteristic of the present invention are set forth in the appended claims. However, the preferred embodiments of the invention, together with further objects and attendant advantages, are best understood by reference to the following detailed description in connection with the accompanying drawings in which:
Referring to
The golf bag (10) also includes two shoulder straps (24, 26) that are attached to the bag (10) as described in further detail below. The dual straps (24, 26) form two relatively large circular openings where a person can insert his/her arms through and then place the respective straps (24, 26) over their shoulders. The golf bag (10) is supported by the shoulder straps (24, 26) and balanced on the person's back region of their body. In
Shoulder Straps
In general, each shoulder strap (24, 26) includes three segments. Primarily, each strap (24, 26) includes a cushioned portion (28, 30), which is discussed in further detail below. These centrally located padded sections (28, 30) are made of a relatively thick, cushioned material. The cushioned portions (28, 30) rest on the golfer's shoulders so that the bag is well supported and he/she can carry the bag (10) comfortably. The shoulder straps (24, 26) also include connector webbing strap portions (32, 34), that are made of a relatively thin, short webbing material and have minimal or no padding. The shoulder straps (24, 26) also includes a hub connector webbing strap portion (62) that is connected to the cushioned portions (28, 30) as discussed in further detail below.
Referring to shoulder strap (24) in
More particularly, as shown in
Now turning to
Referring to
As further shown in
As shown in
Referring to
Hub Connector Strap
The hub connector strap (62) is typically made of a relatively thin, short webbing material. The hub support strap (62) connects the rotatable hub plate (60) to the body of the bag (10) and does not rest on the golfer's shoulders so this strap (62) normally does not have any padding.
Referring to hub connector strap (62) in
Referring to
In an alternative version, the distal end (66) of the hub connector strap (62) is attached to the body of the bag (10) in a way that does not use a slider assembly (72). For example, as shown in
Conversion of Double-Strap to Single-Strap.
To convert from a double-strap (24, 26) configuration to a single strap (27) configuration, Strap A, which is fitted on one shoulder, is detached and slipped over the head area and coupled to Strap B, which is fitted on the opposing shoulder. This results in a single strap comprising both Straps A and B. For example, as shown in
Also, the cushioned portion (28) of Strap A and cushioned portion (30) of Strap B are relatively thick, padded sections that comfortably fit over the shoulders of the person carrying the bag. The cushioned portions (28, 30) can have any suitable thickness, for example, the cushioned portions (28, 30) can have a thickness in the range of about 5 to about 50 mm, and more preferably in the range of about 10 to about 40 mm. In
Also, as illustrated in
To convert the single strap (27) back to a double strap (24, 26) configuration, the person carrying the bag separates the straps (24, 26) from each other by simply pulling upwardly on the top strap of the single strap construction (27). For example, the person may easily pull on top strap (24) so that it separates from bottom strap (26); slip strap (24) over his/her head; and then reattach it to the first attachment point on the bag (10) as described above.
Materials
The cushioned portions (28, 30) of the shoulder straps (24, 26) can be made of any suitable material including, but not limited to, foams, natural and synthetic leathers, natural and synthetic rubbers, woven and non-wovens, and natural and synthetic fabrics. Foamed materials are particularly preferred for constructing the cushioned portions (28, 30). These foamed materials have good stability and yet are also sufficiently flexible to make the cushioned portions (28, 30) comfortable when resting on the shoulders. These foamed materials can have a relatively soft durometer, for example, the hardness can be in the range of about 10 to about 80 Shore A. Another hardness scale (Asker® C) can be used to measure the indentation hardness of the foams, soft rubbers, elastomers or other materials, and the Asker C hardness is normally in the range of 25 to 75.
In general, foam compositions are made by forming gas bubbles in a polymer mixture using a foaming (blowing) agent. As the bubbles form, the mixture expands and forms a foam composition having either an open or closed cellular structure. Many foams contain both open and closed cells. Various thermoplastic and thermoset materials may be used in forming the foam compositions as discussed further below. In one preferred embodiment, a polyurethane foam composition is used to form the foam material. In another embodiment, ethylene vinyl acetate (EVA) foams are used. In a particularly preferred embodiment, a high-stretch, high-recovery foam material referred to as AriaPrene™, and available from Tiong Long Corp. can be used. This foam material is hypo-allergenic, lightweight, non-toxic, and decomposable.
Other thermoplastic elastomers that can be used in accordance with this invention include polyester-polyether block copolymers such as Hytrel® resins, available from DuPont. These block copolymers are available in different grades and contain hard (crystalline) segments of polybutylene terephthalate and soft (amorphous) segments based on long-chain polyether glycols. Polyether-amide block copolymers, which are commonly known as Pebax® resins, and are available from Arkema, Inc. (Columbs, France), also may be used. Other suitable thermoplastic polymers include, but are not limited to, polyurethanes, polyureas, silicones, ethylene acid copolymer ionomers, polyesters, polyolefins, polyamides, polyamide-ethers, polyamide-esters; fluoropolymers, polystyrenes, polyvinyl chlorides, polycarbonates, polyethers, and polyimides including homopolymers, copolymers, and modified polymers and blends thereof.
Natural and synthetic rubber materials also may be used. Suitable rubber materials include, but are not limited to, polybutadiene, polyisoprene, ethylene propylene rubber (“EPR”), ethylene-propylene-diene (“EPDM”) rubber, styrene-butadiene rubber, styrenic block copolymer rubbers (such as “SI”, “SIS”, “SB”, “SBS”, “SIBS”, “SEBS”, “SEPS” and the like, where “S” is styrene, “I” is isobutylene, “E” is ethylene, “P” is propylene, and “B” is butadiene), polyalkenamers such as, for example, polyoctenamer, butyl rubber, halobutyl rubber, polystyrene elastomers, polyethylene elastomers, polyurethane elastomers, polyurea elastomers, metallocene-catalyzed elastomers and plastomers, copolymers of isobutylene and p-alkylstyrene, halogenated copolymers of isobutylene and p-alkylstyrene, copolymers of butadiene with acrylonitrile, polychloroprene, alkyl acrylate rubber, chlorinated isoprene rubber, acrylonitrile chlorinated isoprene rubber, and blends of two or more thereof.
The connector webbing (32, 34) and hub connector strap (62) of the shoulder straps (24, 26) also can be made of any suitable fabric material. The same or different fabric materials can be used to construct the connector webbing (32, 34) and hub connector strap (62). Preferably, the connector webbing (32, 34) and hub connector strap (62) is made of a lightweight, high-strength fabric material. For example, woven fabric made of nylon, polypropylene, or polyester, can be used as the webbing. Elastic webbing made of spandex or rubber fabric material also can be used. The webbing normally is relatively thin and has minimal or no padding. As discussed above, the hub connector strap (62) is attached to the hub plate (60) which can be made of plastic, metal, composite, or other suitable material.
As discussed above, the golf bag of this invention is lightweight and durable and includes a two strap system that can be converted to a single strap system. In the two strap system, one strap is fitted over one shoulder and the second strap is fitted over the other shoulder so that the weight of the bag is borne by both shoulders of a person carrying the bag. When needed, the two straps can be easily converted to a single strap that is comfortably fitted over one shoulder so that the weight of the bag is borne by one shoulder. In both instances, the straps are comfortably fitted over the shoulder(s) and the bag is easy to carry. As needed, the straps can be easily converted from a double to a single and back to a double-strap system. Thus, the amount of weight stress placed on each shoulder can be quickly adjusted. The person carrying the bag can decide which strap system he/she would like to use depending upon the playing circumstances. The golfer can easily change strap systems while walking the course. Because the strap system is so easily convertible, the golfer does not need to spend much time and energy fiddling with the straps, and he/she can better concentrate on their play.
When numerical lower limits and numerical upper limits are set forth herein, it is contemplated that any combination of these values may be used. Other than in the operating examples, or unless otherwise expressly specified, all of the numerical ranges, amounts, values and percentages such as those for amounts of materials and others in the specification may be read as if prefaced by the word “about” even though the term “about” may not expressly appear with the value, amount or range. Accordingly, unless indicated to the contrary, the numerical parameters set forth in the specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the present invention.
All patents, publications, test procedures, and other references cited herein, including priority documents, are fully incorporated by reference to the extent such disclosure is not inconsistent with this invention and for all jurisdictions in which such incorporation is permitted. It is understood that the compositions, golf ball components, and finished golf balls described and illustrated herein represent only some embodiments of the invention. It is appreciated by those skilled in the art that various changes and additions can be made to compositions and products without departing from the spirit and scope of this invention. It is intended that all such embodiments be covered by the appended claims.
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Number | Date | Country | |
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20170266521 A1 | Sep 2017 | US |