MXPA06003289A - Extension pole apparatus - Google Patents

Abstract

An apparatus includes an extension pole, a hydraulic valve, and a handle containing the valve. The handle has a forward end portion configured to receive the extension pole in an installed position. The handle also has a pistol grip portion inclined from the forward end portion. A valve trigger is supported on the handle. The valve trigger has a pistol grip section that extends along the pistol grip portion of the handle within reach of a user's hand grasping the pistol grip portion from behind. The valve trigger further has an upper grip section that projects forward beneath the installed position of the extension pole within reach of a user's hand grasping the extension pole from above.

Description

EXTENSION POST APPARATUS RELATED APPLICATIONS This application claims the benefit of the provisional patent application of the US. Serial number 60 / 676,900, filed May 2, 2005, entitled "High Pressure Extension Pole", which is incorporated herein by reference. TECHNICAL FIELD This technology refers to a water hose extension post. BACKGROUND A person using a water hose, such as a garden hose or pressure washer hose, may require extending the reach of the hose, beyond the reach of the user's arm. An extension pole can be used for this purpose. The extension post may be equipped with a handle containing a valve that directs water from the source hose to an extension hose that projects through the post. The valve is actuated by a trigger on the handle. COMPENDIUM An appliance includes an extension pole, a hydraulic valve and a handle or handle that contains the valve. The handle has a front end portion configured to receive the extension post in an installed position.

The handle also has a gun-like grip portion, inclined from the front end portion. A valve trigger is held in the handle.

The valve trigger has a gun-type clamping section that extends over the gun-type grip portion of the handle. That section of the trigger is within the reach of a user's hand holding the handle-type grip portion of the handle on the back. The valve trigger also has a top clamping section, which projects forward below the installed position of the extension post. That section of the trigger is within the reach of a user's hand holding the extension post at the top. Summarized in a different way, an apparatus includes a tubular extension post, a hydraulic valve having an outlet fitting, and an extension hose configured to extend in a variable length loop from the outlet fitting to the extension post. The apparatus also includes a handle that contains the valve. The handle has a) a front end portion configured to receive the extension post in an installed portion, b) a rear end portion with an opening, and C) an internal passage configured for the loop to extend into the passage to through the opening, through the passageway and into the extension post, through the front end portion of the handle. In view of other features, it can be summarized that the apparatus includes a tubular extension post having a longitudinal axis, a hose that is received through the post, and a nozzle structure at the end of the hose. The apparatus further includes a collar that is configured to engage with the nozzle structure, to block movement of the nozzle structure axially relative to the collar. A detent mechanism is operative between the collar and the post. Preferably, another detent mechanism is operative between the post and the handle.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a pressure washing device including an extension post, a hose and a handle. Fig. 2 is an enlarged view of the parts shown in Fig. 1. Fig. 3 is a side view of the parts shown in Fig. 2. Fig. 4 is an exploded view of parts shown in Figs. Figs. 2 and 3. Fig. 5 is a perspective view of a part illustrated in Fig. 4. or Fig. 6 is an exploded view of other parts shown in FIG.

Fig. 1. Fig. 7 is a side view of parts shown in Fig. 1. DETAILED DESCRIPTION The apparatus 10 shown in the drawings has parts that are examples of the structural elements described in the claims. The illustrated apparatus 10, this way includes examples of how a person with ordinary skill in the art can make and use the claimed invention. Here it is described, to comply with the requirements of implementation and better way of the estaíuíos of paíentes, without imposing limitations that are not described in the claims. The illustrated apparatus 10 is a pressure washing device that includes an eslelectric ejection station 12 and a handle 14. The handle 14 contains a hydraulic valve with enamel and outlet couplings 16 and 18. The enamel coupling 16 is configured to receive the outlet hose of a pressure washer (not mosírada). An extension hose 30 is expelled from the outlet coupling 18 to a nozzle assembly 32 in the outer periphery of the posi- tion 12. As indicated in the sighting of lines punctured in FIG. 1, a section of the hose 30 is ex- tended in FIG. a loop 36 which varies in length with extension and refraction of the posi 12. A trigger 40 in the handle 14 allows the user to operate the valve as desired to open a flow path through the device 10 from the food accessory 16 to the nozzle assembly 32. As shown in Figures 2-4, the handle 14 is elongated with a longer length portion 50 configured as a pistol gripper. The pistol grip portion 50 of the handle 14 is extended toward and away from a front end portion 52 to a lower end portion. 54. As shown in the exploded visia of Figure 4, the handle 14 is defined by a pair of opposites miyades 56 and 58. Each miíad 56 and 58 extends over the length of the handle 14, so that the two miids 56 and 58 junas define all the parts 50, 52 and 54 of the handle 14, when they were held together. The assembled handle 14 is a hollow construction with a longitudinal length passage 59 (Figure 4) for the hose 30. The front end portion 52 of the handle 14 is a cylindrical pipe with a longitudinal centreline axis 61. A circular edge surface 62 defines an aperture 63 for the hose 30. A pair of U-shaped slots 67 in the front trim portion 52 have diamellically opposite locations.

Each slot 67 defines a radial deflection interlocking tongue 70. A respecific relay member 72 projects radially outwardly, near the front eximeum of each locking tongue 70. The peripheral configuration of the gun 50 type gripper is generally circular and uniform on its length between the front end portion 52 and the bottom end portion 54. The two fingers 56 and 58 of the handle 14 have a pair of opposing edge surfaces 73, one of which is illustrated in FIG. 4. edge surfaces 73 define a groove 75 (Figure 3) in the footwell fixture 50, when the two miids 56 and 58 were held together. A pair of opposing reamed hole struts 76, one of which is also illustrated in FIG. 4, are located within two miids 56 and 58 near the upper groove of groove 75. Another pair of reamed holes 11 opposite. , they are located similarly near the lower end of the groove 75. The lower end portion 54 of the handle 14 has a slight radial projection. The wider configuration of the lower end portion 54 is an ergonomic, ergonomic feature which helps to dissipate it from the footpeg fixer 50 and also provides a chamber 79 to contain the valve 80 (Figure 4). Like the groove 75 in the crucible type fastener 50, several additional openings 81, 83 and 85 (Figure 3) in the lower eximere portion 54 are defined by edge surfaces opposite the two miids 56 and 58 of the handle 14.

These include a lower opening 81 through which the supply coupling 16 projects from the valve 80, another lower opening 83 through which the exit coupling 18 projects from the valve 80 and a poserior opening 85 for the 30. As noted earlier, a section of the hose 30 is ex- tended in a loop 36. More specifically, the loop 36 starts at the output coupling 18 of the valve 80, and extends from the pos- terior opening 85 in the lower end portion 54 of the handle 14. The loop 36 extends further through the passageway 59 in the handle 14, and from the handle 14 to the position 12 through the opening 63 in the forward eximeous position 52 of the handle 14 .

Since the hose is fixed to the nozzle assembly 32 at the exile end of pos 14, the length of the loop 36 between the outlet coupling 18 and the aperture 63, increased with retraction of the position 12 and decreases in response to the stress of the post 12. The trigger 40 is an elongated structure with an upper clamping section 100, a clamping section of the chuck 102 and a base 104. As shown in Figure 5, an inner edge surface 106 of the trigger 40 defines a groove. 109 in the fixture section of footwell 102. A pair of sleeve axes 112 protruded from opposite sides of the base 104 on a pivotal axis 115. The stub axles 106 are received within the lower bore hole structures 68. in the handle 14, to support the trigger 40, for pivoial movement with respect to the shaft 115. The trigger 40 has a non-driven portion, as illustrated in Figures 2 and 3. A The actuator 120 in the valve 80 (Figure 4) projects upwardly in engagement with the base portion 104 of the trigger 40.

Accordingly, when the trigger 40 moves from the non-actuated position in a clockwise direction, as seen in the drawings, the base portion 104 of the trigger 40 pushes the actuator pin 120 inwardly in the direction of rotation. valve 80. This displaces valve 80 within and through a range of increasing open conditions. A return spring on the valve 80 moves the actuator pin 120 back outward to the original position, where the valve 80 closes and the trigger 40 is located in the non-actuated position. A spring-loaded safety latch 130 ordinarily holds the trigger 40 in the non-actuated position. A pair of sleeve axes 132 (FIG. 4) in the latch 130 are received in the upper reaming orifice structures 76 in the handle 14 to support the latch 130 for pivotal movement with respect to an axis 135 parallel to the shaft 115, with the latch 130 projecting downward through the slot 109 in the trigger 40. A spring 136 acts between the handle 14 and the latch 130 to move it in an interlocking position where a notch 139 in the latch 130 is received on a edge portion 140 (Figure 5) of trigger 40 next to slot 09. The illustrated example of an extension pole 12, is a tubular cylindrical structure with first and second sections 150 and 152 centered on a longitudinal axis 153. The post of extension 12 further has a threaded fitting 154 which, as known in the art, can be loosened to permit movement of the second section 152, telescopically within the first section 150, and tightened for retention the second section 152 in a selected position for a selected length of the posi 12. A hand gripper based on compressible foam 158, is received on the first section 150 of the posi 12. Posie 12 is inserted in the handle 14 when sliding the first section 150 of the posi 12 coaxially on the front end portion 52 of the handle 14, so that the stop members 72 on the handle 14 engage by quick action in a corresponding pair of openings 159 in the post 12. The user can slide the hand grip 158 forward on the first section 150 of the post 12 as required, to gain access to the retainer members 72. A collar 170 (Figure 1) connected the hose 30 to the eximary end of the second post section 152 As shown in enlarged detail in the Figure 6, the hose 30 has a nozzle fitting 172. The nozzle assembly 32 includes a quick connect socket 174 that is mounted on the nozzle fitting 172. The nozzle assembly 32 further includes a plurality of interchangeable nozzle tips 176. , one of which is illustrated as an example in Figure 6. The collar 170 is an elongated cylindrical structure with two opposing halves 180 which are coaxially received over the nozzle fitting 172. Interior surfaces of the collar halves 180, they are configured to mate with corresponding exterior surfaces of the accessory 172, to block movement of the collar 170 and the accessory 172 axially from each other. Subsequent sections 190 of the collar halves 180, are received together within the open extruder 191 of the second hose section 152. The rear sections 190 of the collar halves 180, have flexible interlock tongues 192 with retainer members 194, which they are received through a corresponding pair of openings 195 in the second hose section 152. With the device 10 assembled as illustrated in Figure 1, the user can operate the valve 80 when clamping and releasing the trigger 40 of either of two. different positions for the hand. The first position for the hand is the gun-like grasping position 50 of the handle 14. As best shown in the side view of Figure 7, the pistol-like clamping section 102 of the trigger 40, is within the reach of the hand of a user who held the pistol grip portion 50 of the handle 14, by the part of airas. The second position for the hand is in the tension post 12, where the position 12 superimposes the front end portion 50 of the handle 14. As best shown in the visual view of Figure 3, the upper clamping section 100 of the trigger 40 was projected forwardly below and beyond the forward end portion 52 of the handle 14. Accordingly, as illustrated in Figure 7, the upper holding section 00 of the trigger 40, projects forward. and below the installed position of the post 12, to be within the reach of the hand of a user holding the hand grip 158 (or the post 12 without the hand grip 158) at the top. A concave upper surface 200 (FIG. 2) of the trigger 40 has a generally cylindrical outline for the upper section 100 of the trigger 40, for coupling with the hand holder 158, when the trigger 40 is fully actuated. This written description establishes the best mode for carrying out the invention, and describes the invention to enable a person skilled in the art to make and use the invention, by presenting examples of the elements described in the claims. The patentable scope of the invention is defined by the claims, which may include other examples that occur to those skilled in the art. These other examples that may be available either before or after the date of presentation of the elements, are intended within the scope of the claims, and have elements that do not differ from the literal language of the claims or if they have equivalent elements with insubstantial differences. of the literal language of the claims.

Claims (16)

1. CLAIMS 1. An apparatus, characterized because it comprises: a position of exigency; a hydraulic valve; a handle that connects the valve, the handle has a front end portion configured to receive the extension post in an installed position and has a gun-like grip portion inclined from the forward end portion; and a valve trigger supported on the handle, the valve trigger has a piston-like clamping section that extends over the gun-like grip portion of the handle within the reach of a user's hand that would hold the clamping portion by hand. It also has a top clamping section that projects forward below the installed position of the extension post within the reach of the user's hand holding the extension post above. An apparatus according to claim 1, characterized in that the upper clamping section of the valve trigger projects forward beyond the front end portion of the handle. 3. Apparatus according to claim 1, characterized in that the extension area has a portion configured as a hand holder. An apparatus according to claim 3, characterized in that the upper clamping section of the valve trigger is projected forwardly below the insulated position of the hand clamp. An apparatus according to claim 4, characterized in that the upper clamping section of the valve trigger is configured to correspond to the hand clamp, when the valve trigger is in an actuated position. 6. An apparatus according to claim 5, characterized in that the upper clamping section of the valve trigger has a concave upper surface with a generally cylindrical contour. 7. A set according to claim 1, characterized in that the extension post is telescopic. 8. An apparatus, characterized by the fact that it comprises: an area of fibular exigency; a hydraulic valve that has an outlet fitting; an ex- tension hose configured to extend in a variable length loop from the outlet fitting in the extension posi- tion; and a handle that conliene the valve, the handle has: a) a front end portion configured to receive the extension post in an installed position, b) a rear end portion with an opening and c) an internal passage configured for the loop to extend into the passageway through the opening, through the passageway and into the extension post, through the forward end portion of the handle. 9. An apparatus according to claim 8, characterized in that the handle has a gun-like holding portion, inclined from the front end portion, and has a lower end portion with an opening therein from which the output fitting It was projected from the handle. 10. An apparatus according to claim 8, characterized in that the extension post is telescopic. 11. An apparatus, characterized in that it comprises: a tube-like position having a longitudinal axis; a hose that is received through the post; a hose nozzle at the end of the hose; a collar configured to correspond to the nozzle design, to block movement of the nozzle structure axially respects the collar; and an operating catch mechanism encircles the collar and the collar. 12. An apparatus according to claim 11, characterized in that the ring mechanism is defined by the collar and the posie. 13. An apparatus according to claim 12, characterized in that the collar comprises an elongated cylindrical structure with two opposite jaws that are received coaxially over the mouthpiece nozzle, and each of the collar opposite nozzles has a flexible locking tongue, with a radially projecting detent member that is received through an opening in the post. 14. An apparatus, characterized in that it comprises: an inspection pole; a hydraulic valve; a handle that contains the valve, the handle has a portion configured to receive the pressure in an insulated position; and an operating check mechanism between the stem and the handle portion. 15. An apparatus according to claim 14, characterized in that the detent mechanism is defined by the posie and the handle portion. 16. An apparatus according to claim 15, characterized in that the portion of the handle is a fibular esíruclura, on which the posie is received in the insialada portion and the fibular esipucíura is miíades opueias, each of which is a tongue of flexible interlocking with a detent member that is received through an opening in the posie.