JPS6346638Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hanging ladder stabilizing device for preventing sideways skidding of a ladder placed against the edge of an eave, etc., and its construction will be described in detail with reference to the accompanying drawings as follows.

In a ladder in which footrests are installed in multiple stages between two side bars arranged on the left and right, a pair of left and right mounting frames 3 are removably provided near the upper ends of the left and right side bars 2 of this ladder 1, and the left and right mounting frames 3 are removably installed. A hook-shaped joint rod 5 is provided on the frame 3 so as to be slidable up and down, the tip of which is grounded and fixed to the roof surface 4.

The mounting frame 3 in the drawing is provided with a clamping device 6 on the inside that clamps the left and right side bars 2 of the ladder 1, and has guide holes 8 formed above and below a guide portion 7 on the outside, and a hook-shaped hole in the guide hole 8. The slide part 9 of the joint rod 5 is inserted to allow it to slide up and down freely, and the center part of the stabilizing plate 11, which is grounded to the roof surface 4 at the tip of the hook part 10 of the joint rod 5, cannot swing in the left-right direction. This figure shows a case in which consideration is given to ensuring that the tip of the hook part 10 is securely grounded and fixed to the roof surface 4 regardless of the inclination angle of the roof.

The mounting frame 3 is provided with a lifting mechanism 13 that slides the joint rod 5 in the vertical direction with respect to the guide portion of the mounting frame 3 by pulling a string 12 hanging downward.

The lifting mechanism 13 in the drawing is located in the center of the guide part 7,
A spring 16 is installed which freely supports the rear end of a horizontal locking piece 15 having a window hole 14 into which the slide portion 9 is inserted and locked, and which constantly presses the horizontal locking piece 15 upward. By doing this, the front and rear edges 17 of the window hole 14 are locked to the sliding part 9 to prevent the engaging rod 5 from descending under its own weight, and the string 12 is connected to the hanging pulley 18 at the front end of the horizontal locking piece 15. While supporting the middle part, one end is fixed to the lower end of the joint rod 5, the other end is suspended to the ground along the ladder 1, and the horizontal locking is achieved by pulling the end of the string near the ground. A case is shown in which the connecting rod 5 can be pulled up at the same time as the piece 15 is removed from the slide portion 9 to be in a free state.

In the figure, numeral 19 is a clamp fixing plate, 20 is a movable clamp piece, 21 is a clamp screw rod, 22 is a non-slip rubber piece, and 23 is a stabilizing leg.

Generally, when climbing to a high place, such as a roof, it is common practice to lean a ladder diagonally against the eaves or the like.

However, in this case, the top of the ladder is simply supported at one end by the eaves, and there is nothing to prevent it from shifting from side to side. If the ladder was propped up, there was a risk of it skidding, tipping over, and falling over, and there were many cases where the ladder would suddenly topple over, resulting in personal injury.

The present invention has solved this drawback, and since it is constructed as described above, a pair of left and right mounting frames 3 are attached to the top of the left and right side bars 2 of the ladder 1, and the joint bars 5 are attached at a desired position, for example, at the eaves 24. By leaning the ladder 1 toward the roof as shown in FIG. 2 and pulling each string 12 one by one or at the same time, the lifting mechanism 13 will operate and slide against the guide portion 7 of the mounting frame 3. The part 9 slides up and down to connect the left and right joint rods 5.
The hook portion 10 is grounded and locked to the roof surface 4.

Therefore, the upper left and right sides of the left and right side rods 2 of the ladder 1 are fixed to the roof surface 4 via the joint rods 5, so that the ladder 1 does not skid and does not tilt on bad ground or on the frozen eaves 24, making it safe. It can be propped up in any position.

When removing the ladder 1 that has been safely propped up in this manner, it is of course possible to remove it as is, but it is also possible to pull the hooks 10 of the joint rods 5 from the roof surface 4 by pulling the respective strings 12 one by one or simultaneously. If you let go,
It can be removed easily.

When it becomes necessary to lean the ladder 1 against the eaves 24 that has a step, if the step is small, the protruding length of the left and right joint rods 5 should be adjusted to the roof surfaces 4 on the left and right sides of the step, and if the step is small, If there is a step, when installing this device on the ladder 1, shift the left and right mounting positions by that amount in advance, and then align the hooks 10 of the respective joint rods 5 with the roof surfaces 4 on the left and right sides of the step. , the ladder 1 can be safely propped up in such special places.

Using this device in this way has many excellent practical effects, such as allowing the ladder to be safely propped up anywhere.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of the product, FIG. 2 is a side view showing the state of use, and FIG. 3 is a side sectional view of the main parts. DESCRIPTION OF SYMBOLS 1... Ladder, 2... Side rod, 3... Mounting frame, 4... Roof surface, 5... Joint rod, 7... Guide part, 9... Slide part, 12... Strap, 13... Lifting mechanism.

Claims (1)

[Scope of utility model registration request] In a ladder that has multiple foot rods installed between the left and right side rods, a pair of left and right mounting frames are removably provided near the upper ends of the left and right side rods, and the left and right mounting frames are attached to the roof surface. The mounting frame is equipped with a hook-shaped joint rod that can freely slide up and down, and a lifting mechanism that slides the joint rod vertically relative to the guide section of the mounting frame by pulling a string hanging downward. Features a hanging ladder stabilizing device.