Collapsible support

Claim 1

A FIFTH WHEEL STAND ADAPTED TO ENGAGE A KINGPIN OF A TRAILER OR THE LIKE, SAID FIFTH WHEEL STAND COMPRISING A SUPPORT STRUCTURE MOVABLE BETWEEN A COLLASED INOPERATIVE POSITION AND A RAISED OPERATIVE POSITION, SAID SUPPORT STRUCTURE WHEN IN RASIED POSITION HVING A GENERALLY VERTICAL SUPPORT MEMBER AND A DIAGONAL SUPPORT MEMBER CONNECTED TO THE VERTICAL MEMBER ON THE SIDE THEREOF ADJACENT THE TRAILER OR THE LIKE, A FIFTH WHEEL PLATE STRUCTURE CARRIED BY SAID VERTICAL SUPPORT MEMBER AND INCLUDING LATCH MEANS ADAPTED TO COOPERATE WITH THE KINGPIN OF A TRAILER OR THE LIKE TO SECURED SAME, SAID DIAGONAL MEMBER BEING MOVABLE BETWEEN AN EXTENDED POSITION IN THE RASIED POSITION OF THE SUPPORT STRUCTURE AND A RETRACTED POSITION IN THE COLLAPSED POSITION OF THE SUPPORT STRUCTURE, MEANS MOVABLE BETWEEN LOCKED AND UNLOCKED POSITIONS FOR RELEASABLY LOCKING THE DIAGONAL MEMBER IN EXTENDED POSTION AND PERMITTING MOVEMENT OF THE DIAGONAL MEMBER TO RETRACTED POSITION ONLY WHEN UNLOCKED, SAID VERTICAL AND DIAGONAL MEMBERS BEING MOUNTED FOR PIVOTAL MOVEMENT ADJACENT THEIR LOWER ENDS UPON MOVEMENT OF THE SUPPORT STRUCTURE BETWEEN COLLAPSED AND RAISED POSITIONS, SAID VERTICAL SUPPORT MEMBER AND SAID FIFTH WHEEL PLATE STRUCTURE SWINGING IN A REARWARD DIRECTION TOWARD THE TRAILER UPON COLLAPSING OF THE HITCH FROM RASIED POSITION, THE LOWR PIVOTED ENDS OF THE VERTICAL AND DIAGONAL MEMBERS BEING SPACED HORIZONTALLY FROM EACH OTHER AND REMAINING AT SUCH SPACING UPON MOVEMENT OF THE SUPPORT STRUCTURE BETWEEN RAISED AND COLLAPSED POSITIONS SAID DIAGONAL MEMBER COMPRISING LATERALLY SPACED ASSOCIATED PAIS OF TELESCOPING ARMS HAVING OPENINGS IN EACH PAIR OF ASSOCIATED ARMS WHICH ARE ALIGNED WHEN THE ARMS ARE IN EXTENDED POSITION, SAID MEANS FOR RELEASABLY LOCKING THE DIAGONAL MEMBER COMPRISING LOCKING PINS POSITIONED WITHIN SAID ALIGNED OPENINGS IN THE EXTENDED POSITION OF THE ARMS, MEANS TO BIAS THE LOCKING PINS INTO LOCKING POSITION WITHIN THE ALIGNED OPENINGS, AND MEANS TO GUIDE THE ASSOCIATED TELESCOPING ARMS INTO EXTENDED POSITION WITH SAID OPENINGS BEING ALIGNED WHEREBY SAID LOCKING PINS ARE RECEIVED WITHIN THE ALIGNED OPENINGS FOR LOCKING THE FIFTH WHEEL STAND IN RAISED POSITION.