Abstract:
An improved supporting frame for a golf bag is mounted to the upper portion of the rear side of the golf bag. It is symmetric in structure to include two supporting tubes that are controlled by a single pressing button to expand and collect. Each supporting tube is engaged with a pivotal holding seat and a collection mount which has elongated slots so as to permit a rivet secured to each supporting tube to slide back and forth in expansion and collection. Each of two positioning pins slidably engaged with a holding seat respectively is controlled by a control rod that is driven by a pressing button whereby a simple actuation of the pressing button permits the two supporting tubes to extend and collect with ease and speed.

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to an improved supporting frame for a golf bag which is mounted to the upper portion of the rear side of the golf bag. It is symmetric in structure to include two supporting tubes that are controlled by a single pressing button to expand and collect. Each supporting tube is engaged with a pivotal holding seat and a collection mount which has elongated slots so as to permit a rivet secured to each supporting tube to slide back and forth in expansion and collection. Each of two positioning pins slidably engaged with a holding seat respectively is controlled by a control rod that is driven by a pressing button whereby a simple actuation of the pressing button permits the two supporting tubes to extend and collect with ease and speed. Besides, the production cost is effectively reduced. 
     Referring to FIGS. 8,  9 , the conventional supporting frame  81  is secured to the upper portion of the golf bag  80  in cooperation with a securing board  82 , a driving board  83  and a pivot shaft  84 . The bottom of the golf bag has a flat plane  801  and a slant plane  802 . The lower end of the supporting frame  81  is associated with the slant plane  802 . A first recess (not shown) is disposed between the flat plane and the slant plane, and at the outer edge of the slant plane  802  is disposed a second recess  803 . A pair of supporting legs  812  are pivotally secured to a fixing board  811  of the supporting frame  81 , and a resilient branch  813  made of steel is engaged with the upper portion of the supporting legs  812 . The bottom end of the resilient branch  813  has a flat bending area. The two supporting legs  812  are coupled together by way of a resilient bar  814 . The rectangular securing board  82  has a pivot section  821 . The driving board  83  has a pivot hinge  831  at one edge with a hook piece  832  at the opposite edge. 
     In assembly, the securing board  82  is housed in the first recess and the securing board  82  and the driving board  83  are in pivotal engagement with each other by a shaft pin  84  led through the pivot section  821  and the pivot hinge  831  so that the driving board  83  is pivotal about the shaft pin  84 . The fixing board  811  of the supporting frame  81  is fixed to the upper portion of the golf bag  80  and the bent lower end of the resilient branch  813  is hooked to the hook piece  832  of the driving board  83 . 
     The expansion and collection of the supporting legs  812  are effected by the driving board  83  disposed at the bottom of the golf bag  80  and the resilient branch  813  that is adjusted to move at one end upwardly or downward to get the supporting legs extended or collected. The driving board  83  is actuated by the weight of the golf bag  80 . The actuation of the branch  813  in cooperation with the driving board  83  can effect the operation of the supporting frame  81 . 
     However, such a conventional supporting frame  10  has the following disadvantages in operation: 
     1. The supporting frame  81  is easily out of function as a result of the quality of the resilient branch  813  and the engagement of the driving board  83  with the hook piece  832 . 
     2. The operation of the supporting frame  81  depends on the elasticity of the resilient bar  814  which is easily out of function as a result of metal fatigue, rendering the supporting legs  812  out of function. 
     3. The size of the resilient branch  813  must be particularly fit to a golf bag  80  of a specific size, rendering the production cost of the supporting frame  81 . 
     SUMMARY OF THE INVENTION 
     Therefore, the primary object of the present invention is to provide an improved supporting frame for a golf bag which has two supporting tubes controlled to expand and collect by simple and speedy actuation of a pressing button. The pressing button drives two control rods to pivot so as to actuate two positioning pins each having a journal section to slide into or out of a holding seat respectively whereby two collection mounts can be actuated to drive the supporting tubes to expand and collect effectively with ease and precision. 
     Another object of the present invention is to provide an improved supporting frame for a golf bag which is equipped with positioning pins, compression springs and torsion springs to drive holding seats to pivot, in combination with rivets each sliding either inwardly or outwardly in elongated insertion slots of two collection mounts so as to make the expansion and collection of supporting tubes in a precise and effective manner. 
     One further object of the present invention is to provide an improved supporting frame for a golf bag that is produced in a single size to be suit to golf bags of any sizes whereby the production cost can be effectively lowered in practical use. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a first perspective diagram showing the exploded components of the present invention; 
     FIG. 2 is a second perspective diagram showing the exploded components thereof; 
     FIG. 3 is a perspective diagram showing the assembly of the present invention; 
     FIG. 4 is a diagram showing the pressing seat being pressed with a finger; 
     FIG. 5 is a diagram showing the expansion of the supporting rods thereof; 
     FIG. 6 is a diagram showing the collection of the supporting rods thereof; 
     FIG. 7 is a diagram showing the retraction of the actuated pressing seat; 
     FIG. 8 is a diagram showing the exploded components of a prior art; 
     FIG. 9 is a diagram showing the operation mode of the prior art. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to FIGS. 1,  2 , the supporting frame secured at a position on the upper portion of the golf bag is made up of a main frame  10 , two retaining pins  30 , two compression springs  31 , four limiting sleeves  32 , two holding seats  40 , two torsion spring  41 , two shaft pins  42 , two supporting tubes  50 , two rivets  51 , two retaining rivets  52 , a collection mount  60 , a pressing button  70  and two control rods  71 . 
     The main frame  10  is structurally symmetric with respect to a golf bag with a pivot receiving recess  11  having a pivot tube  111  defined at the center of the rear side thereof. There is a receiving chamber  112  disposed on each side of the receiving recess  11 . Each receiving chamber  112  has an opening  114  in communication therewith. A pivot hole  113  is disposed at the upper and lower portion of the front side of the receiving chambers  112 . 
     The main frame  10  is provided with a pivot block  12  at each external end thereof. At the bottom of each pivot block  12  is disposed a receiving room  121  with a pivot hole  122  defined on each side face of the receiving room  121 . A through hole  123  in communication with the receiving chambers  112  is located at the front of the receiving room  121 . The positioning pin  30  is cylindrical in structure and of proper length with a bulge headed stop end  301  at one end and a journal section  302  next to the stop end  301  and a slide groove  303  at the other end. The limiting sleeve  32  is a two-staged tube with a through hole  321  defined at the center thereof. 
     The holding seat  40  has a shaft hole  401  at the top end in connection to an ear-shaped block having a limiting hole  403  with a curved track  402  defined in the limiting hole  403  whose diameter is slightly larger than that of the external diameter of the main section of the positioning pin  30 . 
     The shaft hole  401  is provided with a spring locating groove  404  at each end thereof and a connecting rod  405  extending downwardly from the center of the holding seat  40  has a lateral hole  406  defined at the middle thereof. 
     At the top section of the supporting tube  50  is disposed a first lateral through hole  501  and down at a distance is disposed a second through hole  502  perpendicular to the first through hole  501 . 
     The collection mount  60  is of a handle shape with an insertion slot  611  disposed on each side wall of a retaining section  61 . The pressing button  70  has a pivot connection  701  in the upper section and a pressing area in the lower section thereof. A laterally extended abutment rib  702  is disposed at the center portion on an inner wall of the pressing area with a pressing recess  703  defined on an outer wall of the pressing area. 
     At the center of the control rod  71  is disposed a pivot tube  711  and a pry fork  712  extending from the pivot tube  711 . A hook ended abutment plate  713  is located next and approximately perpendicular to the pry fork  712  with a wide angle defined therebetween. 
     In assembly, as shown in FIG. 3, the limiting sleeves  32  are first engaged with the through holes  123  of the pivot block  12  of the main frame  10  and then the torsion spring  41  is placed in the spring locating groove  404  of the holding seat  40 . Afterwards, it is pivotally engaged with the main frame  10  as a whole. At this time, the torsion spring  41  is subject to a torque force to rotate so as to permit one end of the torsion spring  41  to be located in the spring locating groove  404  and another end placed in the receiving room  121  of the pivot block  12 . The shaft pin  42  is led through the pivot hole  122  of the pivot block  12  and the shaft hole  401  of the holding seat  40  to integrally hold the main frame  10  and the holding seat  40  as a whole. 
     The compression spring  31  is registered with the outer end of the positioning pin  30  and together are they led through the through hole  321  of the limiting sleeve  32  secured to the through hole  123  of the pivot block  12 . Thereby the positioning pin  30  is led through the limiting hole  403  of the holding seat  40  and housed in the receiving chambers  112 . 
     Moreover, the control rod  71  is placed in the receiving chamber  112  via the opening  114  of the main frame  10 . The pry fork  712  is engaged with the slide groove  303  of the positioning pin  30  with the abutment plate  713  partially projected out of the opening  114 . Then a pivot shaft is led to engaged with the pivot tube  711  of the control rod  71  and the pivot hole  113  of the main frame  10  to pivotally combine the control rod  71  with the main frame  10 . 
     The other side of the main frame  10  is of the same structure as that made up of the above listed components. Then, the pressing button  70  is housed in the receiving recess  11  of the main frame  10  and is integrally combined with the main frame  10  by way of a pivot shaft led through the pivot tube  111  and the pivot connection  701 . At then, the inner lateral abutment rib  702  is just in abutment against the symmetrically located two abutment plates  713  of the control rods disposed at both sides of the pressing button  70 . In the next step, the two supporting tubes  50  are respectively engaged with the retaining section  61  of the collection mounts  60  and the retaining rivet  52  led through the insertion slots  611  of the retaining section  61  is engaged with the through hole  502  of each supporting tube  50  so as to permit the retaining rivet  52  to slidably move inwardly or outwardly within the insertion slots  611  of the collection mount  60 . Then the two supporting tubes  50  are respectively engaged with the connecting rod  405  of each holding seat  40  by way of a rivet  51  which is led through the lateral hole  406  of the connecting rod  405  and the first through hole  501  of the supporting tube  50  to complete the pivotal engagement of the supporting tube  50  with the holding seat  40 . 
     Referring to FIG. 4, to extend the supporting tube outwardly, a user can apply a single finger to urge the pressing recess  703  of the pressing button  70 , causing the lateral abutment rib  702  of the pressing button  70  to simultaneously urge the abutment plates  713  of the control rods  71  to move inwardly. At then, each control rod  71  is pivoted about a pivot shaft to rotate inwardly to make the pry fork  712  move inwardly against the positioning pin  30 , resulting in the compression of the compression spring  31 . 
     As the positioning pin  30  slides out of the limiting hole  403  of the holding seat  40  with the journal section  302  of the positioning pin  30  located in the limiting hole  403  of the holding seat  40 , the collection mount  60  is easily lifted up rearwardly, as shown in FIG. 5, resulting in the retaining pins  52  of the supporting tubes  50  to slide outwardly in the elongated insertion slots  611  of the collection mount  60  to get the supporting tubes  50  expand. In the meanwhile, the holding seat  40  is pivoted downwardly and is pivotally slidable up and down with the curved track  402  of the holding seat  40  engaged with the journal section  302  of the positioning pin  30  so as to make the torsion spring  41  of the holding seat released and urging against the holding seat  40 , causing the journal section  302  of the positioning pin  30  to be retained in position at the top end of the curved track  402  to complete the expansion. 
     To get the supporting tubes  50  collected, as shown in FIG. 6, the collection mount  60  is pushed with force downwardly to bring the retaining pins  52  of the supporting tubes  50  to slide inwardly along the insertion slots  611  of the collection mount  60  for collection. In the meanwhile, the holding seat  40  pivotally slides along the curved track  402  to cause the torsion spring  41  to be subject to a torque again. As the limiting hole  403  of the holding seat  40  is pivoted to the journal section  302  of the positioning pin  30 , as shown in FIG. 7, the compression spring  31  is resumed in a non-compressed state, then the positioning pin  30  is pushed outwardly, the journal section  302  of the same is moved out of the limiting hole  403  and the main section of the positioning pin  30  slides into the limiting hole  403  of the holding seat  40 . At the same time, the pry fork  712  of the control rod  71  is pushed to move and pivot outwardly with the abutment plate  713  urging the abutment rib  702  of the pressing button  70  so as to get the pressing button  70  to move outwardly and resume its non-operation position. Thus the collection operation is completed. 
     There are some advantages obtained in the present invention given as follows: 
     1. One simple actuation of the pressing button  70 , which can move inwardly to drive the two control rods  71  to make the journal sections  302  of positioning pins  30  slide into the limiting holes  403  of the holding seats  40 , and the collection mount  60  actuates the supporting tubes  50  to expand, makes the operation easy, precise and speedy. 
     2. As the supporting tubes  50  on both sides of the main frame  10  are extended or collected, the positioning pins  30 , the compression springs  31  and the torsion spring  41  together drives the holding seat  40  to pivot for locking in position; and the rivets  52  sliding either inwardly or outwardly for expansion or collection in the insertion slots  611  of the collection mount  60  ensures the expansion or collection in a secure and precise manner without the risk of detachment or shaking in operation. 
     3. The structure of the present invention can be suit for golf bags of any sizes, so, the present invention is produced in one size to be applied to all types of golf bags, rendering the reduction of production cost.