manifested in the preferred embodiment , and illustrated in fig1 - 3 , the present invention provides an adjustable dog harness 100 adapted for pulling , walking , vehicle restraint and other diverse applications . this preferred embodiment harness 100 is designed as a pulling harness , allowing a dog 5 to comfortably pull a light to moderate weight load such as a skier or sled coupled through a tether , lead , leash or similar coupler 10 . harness 100 is designed to fit a wide range of dog breeds and body types ranging in weight generally from 25 to 80 lbs . the adjustability of harness 100 is designed to reduce injuries in pulling dogs and enable one harness to fit a wide range of dogs . preferred harness 100 comprises a pair of back straps 110 , a pair of neck straps 120 , a chest strap 130 , a pair of side straps 140 , an optional belly strap 150 , and a coupling strap 160 . in the preferred embodiment , each of these straps 110 , 120 , 130 , 140 , 150 and 160 are made up of nylon webbing , though those skilled in the art will recognize that other materials may also be suitable or desirable for particular applications . the specific length of the webbing will be determined , as is known in the art , by the desired size of the harness . back straps 110 attach to neck straps 120 via o - ring 118 . neck straps 120 are in turn coupled with chest strap 130 through d - ring 128 . a lead 10 may be coupled through fastener 12 to o - ring 168 . adjustment provided and used in preferred harness 100 simply based upon the dog size includes adjusting slides 122 , which are known in the crafts and notions industry as slides which permit straps to be adjusted for length and then will hold those straps to that length during periods of forceful tension . adjusting slides 122 are used to adjust the length of neck straps 120 to fit the dog size and shape . these adjusting slides 122 allow for a snug fit which is essential around the neck for a pulling dog to prevent injury to the shoulder joints . if the neck portion of harness 100 is too loose or at an improper angle , harness 100 may slide down onto the dog &# 39 ; s shoulders , which would lead to injury during pulling . while not illustrated , an adjusting slide similar to adjusting slides 122 could optionally be provided in chest strap 130 , which would also simply allow the preferred harness 100 to accommodate dogs of different sizes . such adjustment would allow side straps 140 to clear the dog &# 39 ; s front legs as the straps travel up toward belly strap 150 . in some cases , such an adjustment may be desirable to accommodate chest variation between different breeds of dogs . some breeds are very flat chested without much depth , and others have a deep protruding chest . four way adjustment of preferred harness 100 , adjustment beyond that required for proper fitting of dogs of different sizes , is provided through two adjusting slides 112 and two combination buckle - slides 142 . these buckle - slides 142 provide both separation commonly associated with buckles , and also adjustment of strap length associated with slides such as aforementioned adjusting slides 112 , 122 . there are several different known techniques for obtaining both quick separation of a buckle and adjustment of length of a strap , any which are considered to be incorporated herein in the present disclosure with reference to buckle - slides . buckle - slides 142 simplify putting the harness on the dog , since the harness may simply be slipped over the dog &# 39 ; s head and then affixed at the buckle - slides 142 , and these buckle - slides 142 also allow for chest girth adjustment over the ribs . applying preferred harness 100 to dog 5 is far more convenient and easily accomplished than in the prior art . using harness 100 , the buckles 142 , 152 will be disconnected . in the preferred embodiment , these buckles are , in fact , high quality snaps that are closed simply by sliding the two ends together , and which are opened by manually squeezing the two ears together and then pulling , as is known in the art . consequently , disconnecting is very fast . next , the neck portion defined by straps 120 is passed over the head and about the neck of dog 5 . once again , this is a very simple and quick maneuver . then the male portions of buckle - slides 142 will be passed under the dog &# 39 ; s front legs , and wrapped back up to the respective female snap portions , where they will be inserted and snapped into engagement . while a person will have to reach around the dog &# 39 ; s front legs , this too will be a very fast operation . the final step is the wrapping of belly strap 150 about the belly of dog 5 , and again the engagement of buckle - slide 152 . consequently , the dog does not need to step into or out of harness 100 in any way , and the application is very quick and efficient . by providing adjustment of back straps 110 through adjusting slides 112 , once side straps 140 are properly adjusted for chest girth , then slides 112 and buckle - slides 142 may be further adjusted to be balanced for an even pull for pulling and car harness applications . it is critical to the proper operation in these two applications that harness 100 not pull up under the dog &# 39 ; s neck or down at the back of the neck . adjustment of harness 100 is achieved by determining whether harness 100 pulls up under the neck of dog 5 or down at the back of the neck . if harness 100 pulls up , side straps 140 will preferably be shortened , while back straps 110 will be lengthened . while it may be possible to achieve balance by adjusting only the side straps 140 or only back straps 110 , in practice adjustment of all four lines is generally preferable . in contrast , if harness 100 pulls down at the back of the dog &# 39 ; s neck , back straps 110 will be shortened , while side straps 140 will be loosened or lengthened . preferred embodiment harness 100 permits side - to - side movement of rear o - ring 168 , allowing the attachment point of a lead or leash to slide and vary , which reduces horizontal forces on the dog &# 39 ; s hips as the direction of pulling changes . the 45 degree configuration between side straps 110 and back straps 140 , which allows for a very even pull with no upward movement of the harness under the neck , is most preferably achieved by fabricating these two straps from one single contiguous or unitary strap . this angular relationship reduces the tendency of a harness to pull up under the throat , while at the same time preserving substantial strength and durability of the harness necessary for larger pulling forces . most preferably , the entire neck and chest / neck joints will also be provided with supplemental padding , to help prevent undesirable rubbing or interference with a dog . such optional padding is illustrated as 126 , 136 in fig2 , and it will be appreciated that such padding will simply be slid around straps 120 , 130 , and may be slid back to access adjusting slides as required . from these foregoing figures , additional features and options become more apparent . first of all , the preferred harness and components therein may be manufactured from a variety of materials , including metals , resins and plastics , ceramics or cementitious materials , composites , natural fibers or even combinations of the above . the specific material used may vary depending upon a particular application and various cost and durability considerations , as well as other considerations that will be well - known and understood in the art . secondly , the harness is adjustable at all critical points so that the pull on the harness may be adjusted to suit the particular size and dimension of any one of many diverse breeds of dogs . more particularly , a pulling harness must pull evenly about the neck region , neither pulling up or down . this has proven to be very difficult to control in the prior art , and has heretofore involved trial and error redesigns of a harness or custom manufacture to fit a particular dog . as already described herein above , preferred harness 100 is designed for application not only with skijor , but also for dual use as a car harness used to restrain a dog while traveling in a car . belly strap 150 is believed to be most consequential for this application . when implemented for dual use , a car coupler will need to be provided , for exemplary purposes including a length of webbing to attach the dog and harness 100 to a vehicle seatbelt female attachment point . using the preferred harness 100 , including optional belly strap 150 , at the time of impact the belly strap and sliding o - ring 168 will lead to automatic alignment of the dog &# 39 ; s body at the time of impact , with as little undesirable force upon the dog as possible . the harness is , in effect , self - aligning to any direction of impact relative to the dog , who may be similarly oriented at any direction at the time of impact . as harness 100 aligns , the tail of dog 5 will first be drawn into alignment , and then the chest will follow . as the dog &# 39 ; s chest aligns , the harness becomes the aforementioned pulling harness , which keeps all forces aligned and distributed , without choking or applying upward or downward forces onto the dog . as may be surmised from the foregoing , harness 100 is not only useful as a pulling or car harness , but may also be readily adapted to application for walking . as aforementioned , walking harnesses in contrast to pulling or car harnesses are generally designed to specifically pull up under the neck of a dog , so that the dog does not undesirably pull the owner about . from the foregoing adjustment section , adjustment of harness 100 is achieved by determining whether harness 100 pulls up under the neck of dog 5 or down at the back of the neck . if harness 100 is either neutral ( no pulling up or down ) or pulls down at the back of the dog &# 39 ; s neck , back straps 110 will be shortened , while side straps 140 will be loosened or lengthened to adjust harness 100 to be operative as a walking harness . while the foregoing details what is felt to be the preferred embodiment of the invention , no material limitations to the scope of the claimed invention are intended . further , features and design alternatives that would be obvious to one of ordinary skill in the art are considered to be incorporated herein . the scope of the invention is set forth and particularly described in the claims herein below .
an adjustable dog harness has a pair of adjustable length neck straps through which a dog &# 39 ; s head passes . a chest strap passes from the neck under the chest and back , to connect with a pair of adjustable length side straps . these side straps pass up from the chest strap to a belly region that may optionally include a belly strap . the side straps are formed into folds , at approximately 45 degree angles , to continue as adjustable length back straps to the adjustable length neck straps . a sliding position ring couples a lead or leash to the side / back strap folds . buckles are provided in the side straps , and in the optional belly strap , to permit rapid placement and removal of the harness . through appropriate adjustment of the side and back straps , the harness will alternatively be adapted to function as a pulling , walking , or vehicle harness and for other diverse applications .