TW201804068A - Ladder assistant device enabling users to adjust the ladder corresponding to different terrain when facing uneven ground - Google Patents

Abstract

The present invention discloses a ladder assistant device applicable to a ladder. The ladder has at least two vertical main poles, and a plurality of horizontal stepping poles arranged between the two main poles. The ladder assistant device includes a fixing unit having a combining section combined with the vertical main poles of the ladder and at least one guiding member fixed to the combining section; an adjusting unit, which has a columnar shape and can be combined with the guiding member for moving relative to the fixing unit; and a positioning unit configured to fix the adjusting unit to the fixing unit when the adjusting unit is moved to a predetermined position. With the above components, the user can adjust the ladder corresponding to different terrain when facing uneven ground. This invention is also applicable to traditional ladders.

Description

Ladder aid

The invention relates to a ladder, and more particularly to a ladder auxiliary device.

The existing ladder is mainly composed of two spaced vertical main rods and a plurality of horizontal pedals arranged between the two vertical main rods. The user can hold the vertical main rods and press the horizontal pedals to perform the ascending action. With the help of ladders, people with shorter heights can take things placed at higher places or carry out high-rise construction operations.

Although the above ladder can allow users to reach the required height smoothly, in a state where the floor is not flat, the user may not be able to use the ladder due to terrain obstacles, such as: stairs, or insufficient height of the ladder, resulting in use Even if the user climbs to the highest point of the ladder, they still cannot reach the required height, which makes it impossible to take high-level objects or carry out high-level construction operations. Furthermore, the existing ladders cannot be adjusted in height with the needs of the users, so that users often need to prepare ladders of various heights to replace them for different environmental requirements, not only occupying space in storage, but also increasing User burden.

The object of the present invention is that when a user faces a non-flat ground, it can be adjusted according to different terrains, and can be applied to the conventional ladder.

The invention is a ladder assisting device, which is suitable for a ladder with at least two longitudinal main rods and a plurality of transverse tread rods arranged between the two main rods. The auxiliary device of the ladder includes:

A fixing unit having a coupling section coupled to a longitudinal main rod of the ladder and at least one guide member fixed to the coupling section;

An adjustment unit, which is columnar and is coupled to the guide in a manner movable relative to the fixed unit; and

A positioning unit is used for fixing the adjusting unit to the fixing unit after the adjusting unit is moved to a predetermined position.

With the above components, when the user faces uneven ground, it can be adjusted according to different terrains, and can be applied to conventional ladders.

In order to allow your reviewers to further understand and understand the purpose, characteristics and effects of the new model, the following is provided in conjunction with the diagrams for detailed explanation as follows:

Please refer to FIG. 1 to FIG. 3. The present invention is a ladder auxiliary device, which is suitable for a ladder 10 having at least two longitudinal main rods 11 and a plurality of transverse pedals provided between the two main rods. 12, the auxiliary device of the ladder 10 includes:

A fixing unit 20 has a coupling section 21 coupled to the longitudinal main rod 11 of the ladder 10 and two guide members 22 fixed to the coupling section 21. In this embodiment, the coupling section 21 of the fixing unit 20 is A plate body is bent into an L shape, each of the guide members 22 is a square frame body, and a perforation 221 is provided in the center thereof, and the combining section 21 is penetrated by the fixing unit 20 and the longitudinal main rod 11 with two screws A Rear screw lock fixed;

An adjustment unit 30 is a columnar shape having a shape corresponding to the perforations 221 of the guides 22 for the adjustment unit 30 to pass through and is coupled to the guide in a manner movable relative to the fixed unit 20. A guide piece 22, in this embodiment, one end of the adjusting unit 30 has a non-slip foot 31, and the adjusting unit 30 is provided with a plurality of adjusting holes 32; and

A positioning unit 40 is configured to fix the adjusting unit 30 to the fixing unit 20 after the adjusting unit 30 is moved to a predetermined position. In this embodiment, the positioning unit 40 has a welding unit disposed on the fixing unit. A fixing seat 41 of the bonding section 21 of the 20, a pin 42 provided on the fixing seat 41 and one end of which can be moved to the guide 22, a washer 43 provided on the pin 42, and a set of the pin 42 And the two ends thereof elastically abut against the fixing base 41 and the washer 43 to provide an elastic force for the spring 44 to move the pin 42 toward the guide 22, and the pin 42 has a pull ring adjacent to one end of the fixing base 41. 45. The latch 42 is inserted into any one of the adjustment holes 32 of the adjustment unit 30 to fix the adjustment unit 30.

The above is the structure of the present invention, and the usage of the present invention is as follows:

Please refer to FIG. 3 and FIG. 4. When the user wants to use the present invention, firstly fix the coupling section 21 of the fixing unit 20 with the longitudinal main rod 11 with two screws A, and then combine the adjustment unit 30 with the After the guide 22 is slid to a predetermined height, as shown in FIG. 5, the user can move the latch 42 through the pull ring 45 to disengage or latch the latch 42 into the through hole 221 and the guide 22. One of the adjusting holes 32 of the adjusting unit 30 is used to extend the length of the longitudinal main pole 11 of the ladder 10. As shown in FIG. 6, the user can adjust the ladder auxiliary device combined with each longitudinal main pole 11 to adjust The adjustment units 30 of the ladder auxiliary devices make the lengths of the longitudinal main rods 11 inconsistent, so that the ladder 10 can stand on stairs, etc. smoothly by the adjustment units 30 of the ladder auxiliary devices.

Please refer to FIG. 7, the present invention has a wheel B at one end of the adjusting unit 30 in another preferred embodiment of the present invention. When the user wants to move the position of the ladder 10, it can slide by the wheel B, which is more convenient. User moves.

Please refer to FIG. 8, the present invention further has an auxiliary lateral pedal C located between two of the adjusting units 30 and having a positioning unit 40 at each end. The auxiliary lateral pedal C is fixed to each of the positioning units 40. One of the adjusting holes 32 of each of the adjusting units 30 enables the auxiliary lateral pedals C to be parallel to each of the lateral pedals 12. When the length extended by the adjusting unit 30 exceeds the distance that the user can step on, the user can climb upwards with the auxiliary crossbar C, thereby solving the lack of height of the user and being unable to step on the crossbar 12 of the ladder 10 Dilemma.

10‧‧‧ Ladder
11‧‧‧ Longitudinal main pole
12‧‧‧cross pedal
20‧‧‧Fixed unit
21‧‧‧Combination
22‧‧‧Guide
221‧‧‧perforation
30‧‧‧adjusting unit
31‧‧‧Anti-slip feet
32‧‧‧adjustment hole
40‧‧‧ positioning unit
41‧‧‧Fixed
42‧‧‧ Bolt
43‧‧‧Gasket
44‧‧‧Spring
45‧‧‧ Griphook
A‧‧‧screw
B‧‧‧ Wheel
C‧‧‧Auxiliary lateral pedal

FIG. 1 is a schematic perspective view of a ladder installed in a preferred embodiment of the present invention. FIG. 2 is an exploded view of the present invention in a preferred embodiment. FIG. 3 is a top cross-sectional view of a preferred embodiment of the present invention. FIG. 4 is a cross-sectional view of the fixing unit without being fixed with the adjusting unit in a preferred embodiment of the present invention. FIG. 5 is a sectional view of a fixed unit and an adjusting unit in a preferred embodiment of the present invention. FIG. 6 is a reference diagram of the use state of a staircase applied to the present invention. FIG. 7 is a schematic diagram of another preferred embodiment of the present invention. FIG. 8 is a schematic perspective view of an auxiliary transverse pedal installed in the present invention.

10‧‧‧ Ladder

11‧‧‧ Longitudinal main pole

12‧‧‧cross pedal

20‧‧‧Fixed unit

30‧‧‧adjusting unit

31‧‧‧Anti-slip feet

40‧‧‧ positioning unit

Claims (8)

An auxiliary device for a ladder is suitable for a ladder having at least two longitudinal main rods and a plurality of transverse tread rods arranged between the two main rods. The auxiliary device of the ladder includes: a fixed unit having A combination section coupled to the longitudinal main rod of the ladder and at least one guide fixed to the combination section; an adjustment unit, the adjustment unit is cylindrical, and is coupled to the guide in a manner movable relative to the fixed unit; A guide; and a positioning unit for fixing the adjustment unit to the fixing unit after the adjustment unit is moved to a predetermined position. The ladder assisting device according to claim 1, wherein the positioning unit has a fixed seat provided on a joint section of the fixed unit, a latch provided on the fixed seat and one end of which can be moved to the guide, and A washer provided on the bolt, a set of springs provided on the bolt and both ends of which are resiliently abutted against the fixing seat and the washer to provide an elastic force for the bolt to move toward the guide; the adjustment unit is provided with A plurality of adjustment holes are inserted into any of the adjustment holes of the adjustment unit to fix the adjustment unit. The ladder auxiliary device according to claim 2, wherein the latch has a pull ring adjacent to one end of the fixing seat. The ladder auxiliary device according to claim 1, wherein the bonding section of the fixing unit is bent into an L shape by a plate body. The ladder assist device according to claim 4, wherein the guide has a perforation for the adjustment unit to pass through. As described in claim 1, the adjusting unit has a wheel at one end. The ladder assisting device according to claim 1, wherein one end of the adjusting unit has a non-slip foot. According to claim 1, the ladder auxiliary device further has an auxiliary lateral step bar located between the two adjusting units and detachably fixed to the two adjusting units.