Abstract:
An apparatus for a storage stand for a shopping cart  12  and baby stroller  13  which will keep the shopping cart or baby stroller erect and immobile with a pair of adjustable spring-hinged arms  19  having bungee cords  20  positioned on the outside to keep the cart in the folded position. The apparatus  10  also has a locking pin  40  that can slide vertically to lock the clamps  19  in an upright position. One distal end of the front arm or clamp  19  comprises a loop member  32  where the bungee cord  20  passes through to the second arm or clamp having a ring  30  positioned at its distal end for connecting the bungee cord hooks thereto. The base  14  forming the housing is comprised of slidably engaging members at  22 , one forming a shell for the other to selectively slide into and out at the user&#39;s discretion. Each of the sliding members has a cavity forming a wheel well  16.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates generally to wheeled article stands and, more specifically, to a storage stand for a shopping cart and baby strollers, which will keep the shopping cart or baby stroller erect and immobile with a pair of adjustable spring hinged arms having bungee cords positioned on the outside to keep the cart in the folded position. The present invention also has a locking lever that can slide vertically to lock the clamps in an upright position. One distal end of the front arm or clamp comprises a loop member where the bungee cord passes through to the second arm or clamp having a ring positioned at its distal end for connecting the bungee cord hooks thereto. 
   Furthermore, the base forming the housing is comprised of slidably engaging members, one forming a shell for the other to selectively slide into and out at the user&#39;s discretion. Each of the sliding members has a cavity forming a wheel well. Adjustment of the distance between the wheel wells provides for various sized shopping carts and baby strollers. 
   Additionally, the present invention provides locking means for the clamping members in the raised position. A spring tensioned pin resides within a housing located at the base of each clamp. When the clamp arm is raised to an upright position, the pin is depressed until situated within the base receptacle and the clamping arm is released. The pressure of the clamping arm spring will overcome the pin spring pressure keeping the pin in the base receptacle while the stroller or cart is placed between the clamp arms. Once the article is selectively situated between the arms, slight exteriorly directed pressure applied to the arm tip will relieve the clamp spring pressure causing the pin spring to retract the pin. Upon release of the clamp arms pressure will be applied to the opposing sides of the contained article by the clamp arm springs. 
   2. Description of the Prior Art 
   There are other stand-like devices designed for holding articles having wheels. Typical of these is U.S. Pat. No. 653,048 issued to Wigg on Jul. 3, 1900. 
   Another patent was issued to Schulze on Feb. 3, 1903 as U.S. Pat. No. 719,615. Yet another U.S. Pat. No. 1,284,260 was issued to Doering, et al. on Nov. 12, 1918 and still yet another was issued on Jan. 12, 1926 to Fording as U.S. Pat. No. 1,569,737. 
   Another patent was issued to Gonser on Jul. 9, 1968 as U.S. Pat. No. 3,391,760. Yet another U.S. Pat. No. 3,811,536 was issued to Haynes on May 21, 1974. Another was issued to Dorlini on Mar. 4, 1980 as U.S. Pat. No. 4,191,391 and still yet another was issued on Aug. 15, 1989 to Krebs as U.S. Pat. No. 4,856,659. 
   Another patent was issued to Kral on Aug. 6, 1991 as U.S. Pat. No. 5,036,986. Yet another U.S. Pat. No. 5,749,475 was issued to Krebs on May 12, 1998. Another was issued to Scheffer on May 14, 2002 as U.S. Pat. No. 6,386,331. Another patent was issued to Falkenstein on Jun. 24, 2003 as U.S. Pat. No. 6,581,785. Another was issued to Paulus on Jun. 1, 1955 as U.K. Patent No. GB810,593 and still yet another was issued on Jan. 3, 1995 to Lister as U.K. Patent No. GB2,281,277. 
   U.S. Pat. No. 653,048 
   Inventor: Curtis Wigg 
   Issued: Jul. 3, 1900 
   Shown is a support for a rubber-tired vehicle wheel, the same being provided with a groove, an inclined approach to the central part thereof from the level of the roadway, and supports on which the flanges of the rim rest, and the weight of the wheel and vehicle is sustained, for the purpose set forth. 
   U.S. Pat. No. 719,615 
   Inventor: Wilhelm Schulze 
   Issued: Feb. 3, 1903 
   A support for rubber-tired wheels comprising two curved blocks one of which is provided with a transverse slot and a plate on its outer face projecting slightly into said slot, a toothed plate pivoted to the other block passing through the slot and normally spring pressed into engagement with said plate, a pin at the outer end of the blade to prevent the entire separation of the blocks, and springs mounted in sockets in the inner faces of the blocks, normally pressing the blocks apart substantially as described. 
   U.S. Pat. No. 1,284,260 
   Inventor: William M. Doering, et al. 
   Issued: Nov. 12, 1918 
   Shown is a knock-down stand, assuming the frustum of a pyramid, said structure comprising a rectangular shell open at the top and bottom, having flexible corners enabling the structure to be folded upon itself diagonally into flat form and to open up into stand formation, the end walls comprising pivotally connected sections, the upper margins being shaped to support a tire. 
   U.S. Pat. No. 1,569,737 
   Inventor: William G. Fording 
   Issued: Jan. 17, 1922 
   A support for a circular article comprising an elongated: receptacle adapted to receive a peripheral portion of said, article, said receptacle having flexible side and end walls and means carried by the side walls and adapted to be engaged by said article to cause said side walls to grip the article. 
   U.S. Pat. No. 3,391,760 
   Inventor: Harry A. Gonser 
   Issued: Jul. 9, 1968 
   Disclosed is a wheel lock block for vehicle wheels comprising spaced apart substantially parallel end members, laterally spaced apart side members secured at their respective ends to said respective end members end portions, said members all being of rigid angular form in lateral section and defining a pair of walls diverging downwardly from the apex of the angle thereof and terminating at their bottom edges in a plane for biting and gripping engagement with a supporting surface, the innermost walls of the respective end and side members diverging from their apex portions to provide a substantially continuing support engaging bottom edge of rectangular form, whereby to receive a vehicle wheel segment between and in contact with both end and side member inner walls to support the wheel against accidental lateral and longitudinal displacement while said wheel is disposed within the space defined by said inner walls. 
   U.S. Pat. No. 3,811,536 
   Inventor: Freddie J. Haynes 
   Issued: May 21, 1974 
   Shown is a chock for aircraft or other vehicles having ground engaging wheels, including a pair of adjustably engaging chock halves defining a generally U-shaped chock. Each of the chock halves is made of a strong, relatively lightweight synthetic resin, and is of generally triangular cross sectional configuration. Each chock half is of L-shaped configuration and includes an arm configured to register with a corresponding arm of the other chock half when the chock halves are slidably engaged. A securing member is provided for locking the two halves of the chock in a selected position when the chock is in position for brakingly engaging the opposite sides of a tire or wheel. 
   U.S. Pat. No. 4,191,391 
   Inventor: Peter J. Dorlini 
   Issued: Mar. 4, 1980 
   The present invention provides a shopping cart of the two-wheel variety wherein an auxiliary sled attachment is provided, said attachment being adapted to be moved from one to the other of two selectable positions and to be retained in either of such positions, said attachment consisting of a sled having a snow engaging surface which in one position will underlie the wheels, and in the other position will be held out of engagement with the sidewalk or street and in substantially parallel coincidence with a side of the cart. 
   U.S. Pat. No. 4,856,659 
   Inventor: Jimmy M. Krebs 
   Issued: Aug. 15, 1989 
   There is provided a display apparatus for automobile tires molded as a one piece structure and assembled from two identical members. The tire supporting surface is located on the surface of the legs of each structure. This surface has indentations which protrude on the underside of the surface whereby overlapping legs interlock under the weight of the tire to create a rigid structure supporting the tire in a vertical position. 
   U.S. Pat. No. 5,036,986 
   Inventor: Albertus J. Kral, et al. 
   Issued: Aug. 6, 1991 
   This invention relates to an improved, low profile, lightweight, durable, expandable bicycle stand, which holds one or more bicycles, having a wide variety of tire sizes, securely in an upright position. The device of the invention provides one or more optionally interlocking, unitary hollow bodies having bicycle wheel retaining slots vertically disposed therethrough, which retaining slots are tapered, at one or both distal ends to accept and hold a resilient tire therebetween. The hollow bodies have a filling means, and can be at least partially filled with fluid and/or particulate material to weight the stand and increase its stability. 
   U.S. Pat. No. 5,749,475 
   Inventor: Jimmy M. Krebs 
   Issued: May 12, 1998 
   The apparatus of this invention comprises first and second support members, wherein each support member includes horizontally extending legs and an upright portion. One leg of each support member is arranged to overlie a leg of the other support member, and locking tabs on the overlying legs insert and lock into notches of the underlying legs to interlock the supports. 
   U.S. Pat. No. 6,386,331 
   Inventor: Ronald L. Scheffer 
   Issued: May 14, 2002 
   A method and apparatus for securing a wheeled device such as a shopping cart is disclosed. In one embodiment, the apparatus comprises a body having a bottom surface for engaging a support surface and a top surface defining at least one first stop having a first face and a second face, the first face sloping upwardly from the bottom surface towards the rear face and defining a leading edge positioned near the support surface, an apex provided between the first and second faces, the second face sloping downwardly from the apex, and at least one securing element for securing the cart securing structure to the support surface. In use, the wheels of a cart are rolled over the sloping first face into engagement with the second face. In another embodiment of the invention, the body defines first and second stops having a trough positioned therebetween and the wheels of a cart are rolled over a sloping surface of the first stop into engagement with the trough. 
   U.S. Pat. No. 6,581,785 
   Inventor: Thomas Richard Falkenstein 
   Issued: Jun. 24, 2003 
   A display apparatus for displaying an article such as a pneumatic tire includes an elongate base with a substantially planar top surface and article support members projecting from said top surface at opposed ends of the base. Opposed side or lateral article support members are also provided each having an elongate side wall for supporting the article and connection means are provided projecting from opposed ends of each of the side article support members for removable and adjustable inner connection with the article support members on the base to provide a display for displaying an article such as a pneumatic tire in a vertical position and with the ability to accommodate different sizes of tires. 
   U.K. Patent Number GB810,593 
   Inventor: K. W. Paulus Co. 
   Issued: Mar. 18, 1959 
   Vehicle wheels are secured to the wheel tracks of a garage lift (see Group XXX) by chocks and which can be used singly or in combination as shown in FIG. 5. The chocks are provided with hooks adapted to engage selected holes in the tracks, whilst the chocks each have spring arms which move from the position shown in FIG. 4 to that shown in FIG. 5 as a wheel passes over the curved plate 21. In the position shown in FIG. 5 each arm springs away from its associated hole and so prevents reverse movement of the chock. In the modification shown in FIG. 6, each chock comprises a curved plate provided with a rigid leg, and a pair of spring legs which operate similarly to legs. 
   U.K. Patent Number GB2,281,277 
   Inventor: Michael John Lister 
   Issued: Jan. 3, 1995 
   A wheel-raising device comprises an upwardly concavely curved portion between two ramps portions to accommodate one wheel of a closely coupled pair of wheels of a vehicle. With wheel arranged to sit on the curved portion, the other wheel of the pair remains above and out of contact with the device and thereby the other wheel becomes available for examination and/or repair. Preferably, two or more devices are connected together by pins engaging in transverse holes. 
   While these stands may be suitable for the purposes for which they were designed, they would not be as suitable for the purposes of the present invention, as hereinafter described. 
   SUMMARY OF THE PRESENT INVENTION 
   The present invention discloses a storage stand for a shopping cart and baby stroller which will keep the shopping cart or baby stroller erect and immobile with a pair of adjustable spring-hinged arms having bungee cords positioned on the outside to keep the cart in the folded position. The present invention also has a locking pin that can slide vertically to lock the clamps in an upright position. One distal end of the front arm or clamp comprises a loop member where the bungee cord passes through to the second arm or clamp having a ring positioned at its distal end for connecting the bungee cord hooks thereto. The base forming the housing is comprised of slidably engaging members, one forming a shell for the other to selectively slide into and out at the user&#39;s discretion. Each of the sliding members has a cavity forming a wheel well. The present invention provides locking means for the clamping members in the raised position in the form of spring-tensioned pin. 
   A primary object of the present invention is to provide a stand for a collapsible shopping cart and baby strollers. 
   Another object of the present invention is to provide a stand having means for retaining spaced apart wheels therein. 
   Yet another object of the present invention is to provide a stand having fastening means for maintaining shopping cart or baby stroller closure state. 
   Still yet another object of the present invention is to provide a stand having a housing with spaced apart cavities forming wheel wells. 
   Another object of the present invention is to provide a stand having hingedly attached arms with bungee fastening means located on the distal ends. 
   Yet another object of the present invention is to provide a stand wherein said arms keep a closed shopping cart in the closed state until selectively released. 
   Still yet another object of the present invention is to provide a stand for a shopping cart wherein said housing is formed of first and second members mating in tongue and groove fashion. 
   Another object of the present invention is to provide a stand wherein each of the first and second housing member each has a wheel well. 
   Yet another object of the present invention is to provide a stand to accommodate various sized collapsible shopping carts. 
   Additional objects of the present invention will appear as the description proceeds. 
   The present invention overcomes the shortcomings of the prior art by providing a storage stand for a shopping cart, which will keep the shopping cart erect and immobile with a pair of hinged arms positioned on the outside to keep the cart in the folded position. The distal ends of the arms have mating members of a fastener to hold the arms in a selective locked position will the article is placed therebetween. 
   Furthermore, the base forming the housing is comprised of slidably engaging members, one forming a shell for the other to selectively slide into and out at the user&#39;s discretion. Each of the sliding members has a cavity forming a wheel well. Adjustment of the distance between the wheel wells provides for various sized shopping carts. 
   The foregoing and other objects and advantages will appear from the description to follow. In the description reference is made to the accompanying drawings, which forms a part hereof, and in which is shown by way of illustration-specific embodiments in which the invention may be practiced. These embodiments will be 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 structural changes may be made without departing from the scope of the invention. In the accompanying drawings, like reference characters designate the same or similar parts throughout the several views. 
   The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is best defined by the appended claims. 

   
     BRIEF DESCRIPTION OF THE DRAWING FIGURES 
     In order that the invention may be more fully understood, it will now be described, by way of example, with reference to the accompanying drawing in which: 
       FIG. 1  is an illustrative view of the present inventions variations. 
       FIG. 2  is a perspective view of the first style of the present inventions. 
       FIG. 3  is a perspective view of the first style of the present inventions. 
       FIG. 4  is a perspective view of the first style of the present inventions. 
       FIG. 5  is a perspective view of the first style of cart stand of the present inventions in an expanded position. 
       FIG. 6  is a perspective view of the second style cart stand of the present inventions. 
       FIG. 7  is a perspective view of the second style cart stand of the present inventions. 
       FIG. 8  is a perspective view of the third style cart stand of the present inventions. 
       FIG. 9  is a perspective view of the third style cart stand of the present inventions. 
       FIG. 10  is a perspective view of the third style cart stand of the present inventions. 
       FIG. 11  is a detailed view of the clamp locking mechanism of the present invention in a pre-used position. 
       FIG. 12  is a detailed view of the clamp locking mechanism of the present invention in a ready to use position. 
   

   LIST OF REFERENCE NUMERALS 
   With regard to reference numerals used, the following numbering is used throughout the drawings. 
   
     
       
             
             
           
         
             
                 
             
           
           
             
               10 
               present invention 
             
             
               12 
               shopping cart 
             
             
               13 
               baby stroller 
             
             
               14 
               base 
             
             
               16 
               wheel wells 
             
             
               18 
               wheels 
             
             
               19 
               clamps 
             
             
               20 
               cord 
             
             
               22 
               sliding joint 
             
             
               24 
               hinge 
             
             
               26 
               lock lever 
             
             
               28 
               clamp knob 
             
             
               30 
               ring 
             
             
               32 
               loop 
             
             
               34 
               hooks 
             
             
               36 
               arrows 
             
             
               38 
               locking mechanism 
             
             
               40 
               pin 
             
             
               42 
               pin spring 
             
             
               44 
               padding 
             
             
                 
             
           
        
       
     
   
   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
   The following discussion describes in detail one embodiment of the invention (and several variations of that embodiment). This discussion should not be construed, however, as limiting the invention to those particular embodiments since practitioners skilled in the art will recognize numerous other embodiments as well. For a definition of the complete scope of the invention, the reader is directed to the appended claims. 
   Turning to  FIG. 1 , shown therein is an illustrative view of the present invention&#39;s  10  variations. The present invention  10  being a shopping cart  12  and baby stroller or other wheeled vehicle stand that is made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts  12  and strollers by expanding or contracting the housing  14  to fit the width of the cart or stroller. To use, the cart  12  or stroller is folded into its upright position and placed onto the stand. The wheels  18  fit into the wheel wells  16  and the cart or stroller is locked into position by two adjustable clamps  19  that have a bungee cord  20  at the very top to hold the cart  12  or stroller in place. The device of the present invention  10  helps protect floors and tiles by keeping the cart or stroller in an upright, folded position when not in use. This will avoid the potential for falling over and causing damage to walls, floor or even an injury to a child. 
   Turning to  FIG. 2 , shown therein is a perspective view of the first style of the present invention  10 . Shown is the present invention  10  being a shopping cart  12  and baby stroller stand made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart or baby stroller. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts  12  by expanding or contracting the housing to fit the width of the cart. To use, the cart  12  is folded into its upright position and placed onto the stand. The wheels  18  fit into the wheel wells  16  and the cart  12  is locked into position by two clamps  18  that have a latch at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base  14  when not in use. Also shown are rubber padding  44 , sliding joint  22 , spring hinge  24 , lock lever  26 , clamp knob  28 , ring  30 , loop  32 , and hooks  34 . 
   Turning to  FIG. 3 , shown therein is a perspective view of the first style of the present invention  10 . Shown is the present invention  10  being a shopping cart and baby stroller  13  stand made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts by expanding or contracting the housing  14  to fit the width of the cart. To use, the cart  13  is folded into its upright position and placed onto the stand  14 . The wheels  18  fit into the wheel wells  16  and the cart  13  is locked into position by two clamps  19  that have a latch at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base  14  when not in use. Other previously disclosed elements are also shown. 
   Turning to  FIG. 4 , shown therein is a perspective view of the first style of the present invention  10 . Shown is the present invention  10  being a shopping cart and baby stroller stand made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts by expanding or contracting the housing  14  to fit the width of the cart. To use, the cart is folded into its upright position and placed onto the stand  14 . The wheels fit into the wheel wells  16  and the cart is locked into position by two clamps  19  that have a latch with hooks  34  at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base  14  when not in use. Other previously disclosed elements are also shown. 
   Turning to  FIG. 5 , shown therein is a perspective view of the first style of cart stand of the present invention  10  in an expanded position at arrows  36 . Shown is the present invention  10  being a shopping cart and baby stroller stand that is made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts by expanding or contracting the housing  14  to fit the width of the cart. To use, the cart is folded into its upright position and placed onto the stand. The wheels fit into the wheel wells  16  and the cart is locked into position by two clamps  19  that have a latch at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base  14  when not in use. Other previously disclosed elements are also shown. 
   Turning to  FIG. 6 , shown therein is a perspective view of the second style cart stand of the present invention  10 . Shown is the present invention  10  being a shopping cart  12  and baby stroller  13  stand that is made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts  12  by expanding or contracting the housing  14  to fit the width of the cart. To use, the cart  12  is folded into its upright position and placed onto the stand  14 . The wheels  18  fit into the wheel wells  16  and the cart  12  is locked into position by two clamps  19  that have a latch at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base  14  when not in use. Other previously disclosed elements are also shown. 
   Turning to  FIG. 7 , shown therein is a perspective view of the second style cart stand of the present invention  10 . Shown is the present invention  10  being a shopping cart and baby stroller stand is made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts by expanding or contracting at  22  the housing  14  to fit the width of the cart. To use, the cart is folded into its upright position and placed onto the stand  14 . The wheels fit into the wheel wells  16  and the cart is locked into position by two clamps  19  that have a latch at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base when not in use. Other previously disclosed elements are also shown. 
   Turning to  FIG. 8 , shown therein is a perspective view of the third style cart stand of the present invention  10 . Shown is the present invention  10  being a shopping cart  12  and baby stroller  13  stand is made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts  12  by expanding or contracting the housing at  22  to fit the width of the cart. To use, the cart  12  is folded into its upright position and placed onto the stand  14 . The wheels fit into the wheel wells  16  and the cart is locked into position by two clamps  19  that have a latch at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base  14  when not in use. 
   Turning to  FIG. 9 , shown therein is a perspective view of the third style cart stand of the present invention  10 . Shown is the present invention  10  being a shopping cart and baby stroller stand is made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts by expanding or contracting the housing at  22  to fit the width of the cart. To use, the cart is folded into its upright position and placed onto the stand  14 . The wheels fit into the wheel wells  16  and the cart is locked into position by two clamps  19  that have a latch at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base when not in use. Other previously disclosed elements are also shown. 
   Turning to  FIG. 10 , shown therein is a perspective view of the third style cart stand of the present invention  10 . Shown is the present invention  10  being a shopping cart and baby stroller stand that is made of heavy duty plastic and comes in multiple colors to match the color of the shopping cart and baby stroller. The base  14  is filled with sand and is airtight to keep it steady and anchored to the floor. The device  10  is designed to accommodate large and small shopping carts by expanding or contracting at  22  the housing  14  to fit the width of the cart. To use, the cart is folded into its upright position and placed onto the stand  14 . The wheels fit into the wheel wells  16  and the cart is locked into position by two clamps  19  that have a latch at the very top to hold the cart in place. The clamps  19  can be positioned to lie parallel to the base  14  when not in use. Other previously disclosed elements are also shown. 
   Turning to  FIG. 11 , shown therein is a detailed view of the clamp locking mechanism of the present invention in the pre-used position. Shown is the clamp locking mechanism  38  of the present invention. When the clamp  19  arm is lifted, the locking pin  40  is inserted into its pin receptacle counterpart  26  securing the clamp arm in a upward position. To release, the user simply pushes the top of the clamp arm  19 , freeing the pin  40  from its counterpart  26  and allowing the clamp arm to press on the stroller. Also shown are spring hinge  24 , pin spring  42  and base  14 . 
   Turning to  FIG. 12 , shown therein is a detailed view of the clamp locking mechanism of the present invention in a ready to use position. Shown is the clamp locking mechanism  38  of the present invention. When the clamp arm  19  is lifted, the pin  40  is inserted into its counterpart  26  securing the clamp arm in an upward position. To release, the user simply pushes the top of the clamp arm  19 , freeing the pin  40  from its counterpart  26  and allowing the clamp arm to press on the stroller. Also shown are spring hinge  24 , pin spring  42  and base  14 .