The present invention relates generally to gloves and more particularly to gloves with visual markings on the back of a glove designed to improve worker safety in hazardous environments by increasing the perception and recognition of the glove at a distance and making it easier to distinguish between the front and back of the glove.
Workers in the oil and gas extraction industry often handle large pipes and heavy tools, such as steel wrenches. These items are typically handled in the presence of mud, crude oil, lubricating fluids such as a mixture of diesel fuel and mud, and other natural and synthetic lubricants. These lubricants assist in drilling for and extracting petrochemical compounds. The difficulty of gripping pipes and tools in the presence of lubricants creates a working environment susceptible to impacts occurring to the dorsal, or back, side of the hand. These impacts have historically resulted in a large number of hand injuries to workers.
In the field, operators of heavy equipment, such as cranes and the like, communicate with workers on the ground using hand signals. These hand signals are a vital method of communication. As part of that communication, it is important for the operators to see the workers' hands from distances that could be over 50 feet, such as 100 feet, and to also be able to distinguish between the front (palm) and back of the glove. Accordingly, gloves for use in the oil and gas extraction industry have been brightly colored to make them easier to see by the operators.
While most of the prior art gloves being used in the oil and gas industry are brightly colored, no glove to date has been designed that improves operator perception and recognition of a glove at a distance of about 50 feet or greater in an effort to lessen the frequency of recordable hand injuries.
A glove with patterns on the dorsal (back) side of the glove designed to improve perception and recognition at a distance is provided. The glove includes a safety icon consisting of a shape positioned in the central portion of the back of the glove. The safety icon may be in the shape of a polygon, circle, ellipse or other any other shape so long as it contains negative space within a portion of the inner area of the shape. A specific ratio of approximately 2:1 of the width of the negative space to the width of the surrounding safety icon has been found to improve perception of the safety icon at distances over 50 feet.
While the safety icon may have sharp edges, it is preferred that the safety icon have rounded edges. In view of the numerous horizontal and perpendicular lines present in the worker's environment such as from cranes, scaffolding, steel pipes, etc., a more rounded yet angular design of the safety icon makes the glove more recognizable from a distance. The negative space within the safety icon also makes the shape more recognizable. The safety icon is preferably a bright color, such as yellow, with added fluorescent dyes, which emit additional radiation in the visible spectrum, while the negative space is a dark color in contrast with the safety icon, preferably black. The area adjacent to and surrounding the safety icon is preferably a color which contrasts with the safety icon, more preferably black.
Pinched and fractured fingers are the two major sources of recordable hand injury in the oil and gas industry. In an effort to decrease the amount of these injuries, the glove includes the placement of stripes, preferably colored black and yellow, on each fingertip. Black and yellow hazard stripes are the generally accepted industry protocol for identifying physical hazards. Though the stripes are not being used to identify a specific hazard, utilizing these proven hazard stripes on each finger tip ensures that the finger tips will have increased visibility and be easily recognizable thus reducing the opportunity of recordable hand injury. The hazard stripes may also be other color combinations. For example for a glove being used in the fire industry, the hazard stripes may be red and white, which is the generally accepted industry standard for identifying items related to fire prevention.
In one embodiment, the safety icon and hazard stripes are encapsulated in a see-through composite material which eliminates fading and saturation which may occur when the brightly colored materials are exposed to the mud, crude oil or lubricants when working in the field.
In one embodiment the safety icon and hazard stripes are comprised of colors with added fluorescence.
In one embodiment the safety icon and hazard stripes are encapsulated in thermoplastic rubber.
It is anticipated and within the scope of this invention that the safety icon and hazard stripes may be applied directly to the back of a glove for industries where impact protection is not required. For applications where it is not essential to distinguish between the palm (front) and back of the glove, and the goal is only to make the hand recognizable at a distance, the safety icon may be placed on both the palm and back of the glove, with or without the inclusion of the hazard stripes.
It is anticipated and within the scope of the invention that the safety icon and hazard stripes may be applied to other hand coverings besides gloves, such as mittens.
These and other features of this invention are described in, or are apparent from, the following detailed description of various exemplary embodiments of this invention.
Exemplary embodiments of this invention will be described with reference to the accompanying figures wherein:
Initially referring to
Protective members 1 and 2 have safety icon 6 positioned across both of these elements. In this embodiment, safety icon 6 is a triangular shape. With the exception of safety icon 6, protective members 1 and 2 are a dark color, preferably black. The safety icon is a contrasting bright color, preferably yellow, more preferably fluorescent yellow. Negative space 7 within safety icon 6 is a contrasting color to safety icon 6, preferably the same color as the remainder of protective members 1 and 2. In an embodiment such as this where safety icon 6 is positioned across protective members 1 and 2, there is a small gap in continuity of the safety icon corresponding to the space between the protective members necessary to allow adequate movement of the glove.
Glove fabric 8 is preferably a color that contrasts with both protective members 1, 2, 3a-3d, 4a, 4b, hazard stripes 5a-5e, safety icon 6, and negative space 7.
The protective members are preferably encapsulated in a polymeric covering to eliminate fading and saturation of the colors of the hazard stripes and triangular icon. More preferably, the polymer covering consists of thermoplastic rubber (TPR).
When a worker wears the glove, the worker and operator's attention is drawn to hazard stripes 5a-5e, bringing visibility to the distal phalanges and end of the thumb, making them instantly recognizable in order to minimize the potential for pinched and fractured fingers and a recordable hand injury.
When the worker wears the glove, the fluorescent colors of safety icon 6 and the contrasting black color of negative space 7 results in a shape more recognizable to the operator from a further distance. The palm of the glove is of a color different from hazard stripes 5a-5e or safety icon 6, preferably a bright color. The contrast between the back of the glove with visual markings and the palm of the glove, absent visual markings, assists the operator in recognizing the difference between the palm of the gloved hand and the back of the glove to improve the recognition of hand signals, particularly at a distance. In an embodiment where it is not important to distinguish between the palm and back of the glove, but recognition at a distance remains important, safety icon 6 may also be positioned on the palm portion of the glove.
As illustrated in
Many variations may be made from the specific embodiment shown. For example, the color of hazard stripes 5a-5e and safety icon 6 may be any color, or differing colors, so long as the color chosen is in contrast to the respective protective members. In one specific embodiment, the glove back only contains safety icon 6 without hazard stripes 5a-5e.
The safety icon may also be any shape that fits within the central part of the back of the glove and contains the appropriate ratio proportion of negative space to enhance recognition at a distance of greater than about 50 feet.
As illustrated in
As illustrated in
As illustrated in
In an embodiment for industries where visibility of the hand is important but the hand is not being exposed to physical hazards, safety icon 6, 16, 26 or 36 may be woven, printed, heat transferred, or otherwise directly applied onto the glove back with or without the presence of hazard stripes 5a-5e.
The relative conspicuity of the safety icon exemplified by the present invention in comparison to other possible safety icons was tested to evaluate improvement in recognition and perception of an icon embodied by the present invention when viewed at a typical jobsite for a glove wearer during daylight hours at a distance of 100 feet (i.e., more than 50 feet).
The conspicuity test compares the relative conspicuity of three icons (
As part of the test, six test subjects evaluated one unique version of three images with the icons of
As illustrated by
Three photographs representing expected work environments for wearers of gloves of the present invention were selected to be used as test images. For the conspicuity test, the following three test images were chosen: (1) a power transmission cable installation work crew; (2) a shale drilling rig (onshore); and (3) an offshore drilling platform. Each of these images contained both machinery and workers. It should be recognized by one of ordinary skill in the art that other images could be selected for this test.
Six versions of each test image were prepared. The three icons of
The icons used were sized to simulate a size, when being observed during the test, of about the actual size when placed on a glove of the present invention. For this test set-up, a 1080 pixel RCA monitor of dimensions 56.25 inches width and 31.5 inches height was used. The size of an individual in the test images when displayed on the monitor was 13.8 inches, approximately ⅕ of the actual height of the individual. Accordingly, an icon height of 14 mm was used, which is about ⅕ of the actual height of the icon when placed on a glove. A test subject standing 20 feet from an image of this size simulates standing 100 feet away from the image.
Each test subject was asked to stand 20 feet from the monitor displaying the images.
Each test subject was provided with the following information and instructions:
While each of the “121”, “solid” and “thin.” icons represented by
The monitor began with a blank screen. One of the six versions of test image 1 was presented on the monitor, in full screen format, to the test subject. Once the test subject located one icon, the monitor was switched to a blank screen. The length of time to find an icon was recorded and the icon that was found was recorded. If a test subject saw more than one icon in the test images, that identity of the second icon was also recorded.
The next test subject was then brought into the room and shown a different version of test image 1 and the same test was performed. The process was repeated using differing versions the same test image with the remaining five test subjects so that each test subject viewed one unique version of test image 1. The testing continued until each test subject viewed each of the six versions of test image 1.
The process was then repeated with the same six test subjects for the six versions of test image 2 and then for the six versions of test image 3.
Table 1 below presents the conspicuity test data comparing the triangular safety icon of the present invention (“121”,
The analysis of the data in Table 1 is presented in Table 2 below:
As seen in Table 2, the triangular safety icon of the present invention (the “121” icon embodied in
Now that embodiments of the present invention have been shown and described in detail, various modifications and improvements thereon will become readily apparent to those skilled in the art. Accordingly, the exemplary embodiments of the invention, as set forth above, are intended to be illustrative, not limiting. The spirit and scope of the present invention is to be construed broadly.
This application claims the priority of and benefit to U.S. Provisional Patent Application No. 62/233,210, filed on Sep. 25, 2015, and U.S. Provisional Patent Application No. 62/257,376, filed on Nov. 19, 2016, the entire contents of which are incorporated by reference herein.
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PCT/US2016/053459 | 9/23/2016 | WO | 00 |
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WO2017/053809 | 3/30/2017 | WO | A |
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