JPH034900U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a three-dimensional explanatory diagram of the triangular ladder of the present invention, Figure 2 is a three-dimensional explanatory diagram of the upright ladder of the present invention, Figure 3 is a three-dimensional explanatory diagram of the inventive condensation completed, and Figure 4 is an example of the use of the stairs of the present invention. Figure 5 is a second embodiment of the use of the stairs of the present invention, Figure 6 is an explanatory cross-sectional view when the legs of the ladder of the present invention are latched on the left and right sides, Figure 7 is an explanatory cross-sectional view of the legs of the ladder of the present invention when the left and right sides are condensed, and Figure 8 9 is a three-dimensional perspective view of the ladder leg joint plate of the invention, FIG. 10 is a front and right perspective view of the localization indicator needle of the invention, and FIG. 11 is a perspective view of the localization indicator of the invention. An explanatory diagram of the spring receiver of the indicator needle, FIG. 12 is a three-dimensional perspective view of the left top tread joint plate of the present invention, FIG. 13 is a three-dimensional perspective view of the right top tread joint plate of the present invention, and FIG. 14 is a three-dimensional perspective view of the joint plate axis. , Fig. 15 is a sectional view taken along lines A-A and B-B in attached figures 12 and 13, Fig. 16 is a three-dimensional explanatory view of the inner and outer rods of the push button, and Fig. 17 is attached figures 16C-C and D-D.
Cross-sectional view.

Claims (1)

[Scope of utility model registration request] It is a kind of telescopic ladder with various functions, which is mainly assembled from a ladder support rod, a tread plate, a connecting plate, two sets of connecting objects for connecting the ladder surface, and a latch positioning mechanism, among which the ladder support rod is The legs of the ladder are made up of several sets of supporting rods with different diameters, and the legs of the ladder become thicker toward the bottom and become thinner toward the top. is designed in a C-shape and is fitted one by one in sequence, with a rubber fitting below each ladder support bar and a plastic joint plate above each ladder support bar for connecting the ladder support bar and tread. A set of cams is installed on the left and right top treads and connecting plates, and one axis is passed through a hole drilled in the cams, and a vertical ladder is used to support the left and right ladder surfaces. It also serves as the axis when transforming into. A quick latching positioning mechanism is provided inside the joint plate, and the latching positioning mechanism is installed between the support frame and the tread of the telescoping ladder. This latch positioning mechanism has one circular hole at an appropriate position on the rod inside and outside each push button, and one compression spring and one positioning indicator needle can be placed inside. The front end of the stereotactic needle is equipped with a conical head, and the distal end has a small circular hole. A wire rope can be passed through the small circular hole, and when the wire rope passes through the iron port of the U-shaped tank and the inner and outer rods are pushed, the wire rope contracts in the middle and directs the positioning of the latching positioning mechanism. It is characterized in that the needle retracts to rapidly retract the telescoping ladder, and when the telescoping ladder is used, it is rapidly opened for use.