Fall protection equipment is commonly utilized to prevent injuries to workers who need to climb poles to install and repair equipment. Such fall protection equipment typically includes a safety harness donned by the worker and safety equipment, such as a pole choker assembly, connecting the safety harness and the pole. The safety equipment allows the worker to climb up and down the pole while preventing the worker from falling to the ground if a fall event occurs.
For the reasons stated above and for other reasons stated below which will become apparent to those skilled in the art upon reading and understanding the present specification, there is a need in the art for an efficient and effective fall prevention assembly.
The above-mentioned problems of current systems are addressed by embodiments of the present invention and will be understood by reading and studying the following specification. The following summary is made by way of example and not by way of limitation. It is merely provided to aid the reader in understanding some of the aspects of the invention.
In one embodiment, a fall prevention assembly is provided. The fall prevention assembly includes a pole strap, a first connector, a floating back plate, a second connector, a lanyard and an engaging sleeve. The pole strap has a first end, a second end and a mid-portion between the first end and the second end. The first connector has a first end that is slidably coupled proximate the first end of the pole strap. The floating back plate is engaged between a portion of the first connector and the pole strap. The floating back plate is configured and arranged to selectively bind the pole strap to the first connector in a static position. The second connector is coupled proximate the second end of the pole strap. The lanyard has a first end, a second end and mid-portion between the first and second ends. A second end of the first connector is slidably coupled to the lanyard. A second end of the second connector is slidably coupled to the lanyard, such that the mid-portion of the pole strap and the mid-portion of the lanyard can be positioned around a pole to be climbed. In addition, the engaging sleeve is received around the mid-portion of the lanyard to engage the pole to be climbed.
In another embodiment, another fall prevention assembly is provided. This fall prevention assembly includes first and second elongated members, first and second connectors and a rope grab. The first elongated member has a first end, a second end and mid portion between the first and second ends. The first elongated member is configured to be positioned around an outside portion of a pole to be climbed in relation to a user of the fall prevention assembly. The second elongated member has a first end, a second end and a mid portion between the first and second ends. The second elongated member is configured to be positioned around an inside portion of the pole to be climbed in relation to the user of the fall prevention assembly. The second end of the second elongated member is configured and arranged to be selectively coupled to a safety harness of the user. The first connector has a first portion that is selectively sideably coupled to the first elongated member and a second portion that is sideably coupled to the second elongated member. The second connector has a first portion coupled a select distance from the second end of the first elongated member and a second portion coupled to the second elongated member such that the first and second connectors couple the first and second elongated members around the pole. The rope grab is engaged with the second elongated member. The rope grab is configured and arranged to be selectively coupled to the safety harness of the user.
In still another embodiment, an adjustment assembly is provided. The adjustment assembly includes a sliding adjustment member and a floating back plate. The sliding adjustment member includes a first post, a second post, a first side plate, a second side plate and a connecting head. The first post and the second post extend between the first plate and the second plate in a spaced fashion such that the passage is formed by the first post, the second post, the first side plate and the second side plate. The connecting head extends from the second post. The floating back plate is configured and arranged to be received in the passage of the sliding adjustment member and to engage the first post to selectively bind a strap also passing through the passage of the sliding adjustment member.
The present invention can be more easily understood and further advantages and uses thereof will be more readily apparent, when considered in view of the detailed description and the following figures in which:
In accordance with common practice, the various described features are not drawn to scale but are drawn to emphasize specific features relevant to the present invention. Reference characters denote like elements throughout Figures and text.
In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the inventions may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the claims and equivalents thereof.
Embodiments of the present invention provide a pole climbing fall prevention assembly 100 that is easy to use as well as an effective fall protection device. Referring to
An engaging sleeve 102 is positioned around the lanyard 103 to engage the pole to be climbed. The engaging sleeve 102 in one embodiment is made from an abrasion resistant fabric such as, but not limited to, a fabric that includes ceramic material. An example of a suitable material from which the engaging sleeve 102 could be made is “Super Fabric” manufactured by HDM Inc. of Oakdale, Minn. Coupled to the ends of the engaging sleeve are adjustment rings 116a and 116b that allow the user to adjust the length of the engaging sleeve 102 to engage the pole while not interfering with the cinching of the fall prevention assembly 100 when in use. The length is adjusted by sliding the adjustment rings 116a and 116b inward to gather the engaging sleeve 102 by positioning the ends closer together or, if already at least partially gathered, by sliding the adjustment rings 116a and 116b outward away from one another.
The pole strap 104 terminates in ends 118a and 118b. The pole strap 104 is coupled to the lanyard by a D-ring 114 and a sliding engaging member 112 that is selectively slidably coupled to the pole strap 104. The D-ring is coupled a distance from a distal end of the first end 118a of the pole strap. The sliding engaging member 112 includes a snap hook 106 that is coupled to the lanyard 103 at one end and is selectively coupled to the sliding engaging member 112. The snap hook 106, in this embodiment, includes protrusions 106a (teeth) that extend outward from a body of the snap hook 106. The teeth 106a are designed to engage the pole when the fall prevention assembly 100 is in use. The sliding engaging member 112 fits around the pole strap 104 and along with a floating back plate 111 selectively slidably engages the pole strap 104 as further discussed below.
The sliding engaging member 112 and floating back plate 111 are further illustrated in
The floating back plate 111 is further described in regards to
An example of the clip is illustrated in
Once the pole strap 104 and the lanyard 103 are positioned around the pole 300 and the fall prevention assembly 100 is adjusted, the user 400 is ready to climb the pole 300. The user 400 moves the fall prevention assembly 100 in relation to the pole 300 via grasping the ends 118a and 118b of the pole strap 104 and sliding the fall prevention assembly 100 in relation to the pole 300. In particular, the user 400 grasps the first end 118a of the pole strap 104 with a first hand that is positioned between a distal end of the first end 118a and the D-ring 114 and the second end 118b of the pole strap 104 with a second hand positioned between a distal end of the second end 118b and the sliding adjustment member 112 when moving the fall prevention assembly 100 in relation to the pole 300. Having the second hand positioned proximate the sliding adjustment member 112 allows for the easy and fast adjustment of the pole strap 104 and lanyard 103 around the pole 300 as the user 400 is climbing or descending the pole 300. In particular, the tightness of the fall prevention assembly 100 around the pole 300 can be adjusted with only one hand of the user 400 when no tension is being applied to the fall prevention assembly 100. When the user 400 is ready to reposition the fall prevention assembly 100 on the pole, the pole strap 104 slides relatively easily within passage 209 of the engagement slide engaging member 112 to adjust the tightness of the fall prevention assembly 100 about the pole.
In particular, to climb, the user 400 first loosens the fall prevention assembly 100 around the pole 300 by manipulating the sliding engaging member 112. Once loose, the user 400 grasps the ends 118a and 118b of the strap 104 and moves the fall prevention assembly 100 up the pole 300. The fall prevention assembly 100 is then tightened about the pole 300 via manipulation of the sliding engaging member 112. The user 400 then moves up the pole 300 a select distance until the fall prevention assembly 100 has to be repositioned. This process is repeated until the user 400 reaches a desired location on the pole 300. In descending, the user 400 manipulates the sliding engaging member 112 to loosen the fall prevention assembly 100. The user 400 then positions the fall prevention assembly 100 lower on the pole 300 via grasping the ends 118a and 118b of the strap 104. The user 400 then tightens the fall prevention assembly 100 on the pole by manipulating the sliding engaging member 112. The user 400 then climbs down the pole 300 a select distance until the fall prevention assembly 100 has to be repositioned. This process continues until the user 400 reaches the ground.
When the user 400 encounters an obstacle, the fall prevention assembly 100 has to be disconnected. A secondary strap 327 is attached around the pole 300 while the fall prevention assembly 100 is detached from the pole 300. In particular, once a user 400 reaches an obstacle, the user 400, secures the secondary strap 327 (that is coupled to the user's 400 safety harness 320) around the pole 300. Once, the secondary strap 327 is secured around the pole, the fall prevention assembly 100 is disconnected from the pole 300 by disconnecting the snap hook 106 from the sliding adjustment member 112. The pole strap 104 and the lanyard 103 are then repositioned over the obstacle (if the user 400 is climbing up) or under the obstacle (if the user is climbing down) and then reattached by engaging the snap hook 106 to the sliding adjustment member 112. The secondary strap 327 can then be disconnected from the pole 300. As illustrated in
When tension is being applied to the fall prevention assembly 100, the back plate 111 of the slide engaging member 112 causes the slide engaging member 112 to lock onto the belt 104 by wedging the belt 104 into the second post 204 of the slide engagement member 112. In a fall event, tension on the lanyard 103 of the fall prevention assembly 100 as a result of the fall causes the floating back plate 111 and sliding adjustment member 112 to assert a pressure on the pole strap 104 to cinch the fall prevention assembly 100 on the pole 300. Teeth 134d of the stopping cleat 134, teeth 210 of the slide engaging member 112 and protrusions 106b of the snap hook 106 dig into the pole 300 also during a fall event to maintain the fall prevention assembly in a static location in relation to the pole 300. Hence, if a user falls, the fall prevention assembly 100 prevents the user from falling to the ground via the cinching action of the fall prevention assembly 100 on the pole 300 and the engagement of the teeth 134d, 210 and protrusions 106b with the pole 300.
Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement, which is calculated to achieve the same purpose, may be substituted for the specific embodiment shown. This application is intended to cover any adaptations or variations of the present invention. Therefore, it is manifestly intended that this invention be limited only by the claims and the equivalents thereof.
This application claims priority to U.S. Provisional Application Ser. No. 61/311,318, titled “Pole Grabber (Restricting Belt/Pole Climbing Fall Protection System) With Adjustable Pole Strap Dee Ring,” filed on Mar. 6, 2010 and U.S. Provisional Application Ser. No. 61/382,565, titled Pole Choker Assembly,” filed on Sep. 14, 2010, both of which are incorporated in their entirety herein by reference.
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