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Stair

A ladder, part of the technology, applied in the field of ladders, can solve problems such as rise and fall of steps, collapse of steps, and less than ideal.

Inactive Publication Date: 2016-11-16
索恩索股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Although the authors of this document consider this raised position to be a stable position, the inventors have recognized that the weight applied to the front of the pivot connection 50 near the front wall 40 has the effect of lifting the latch 51a from its housing 48a. Potential, which could cause the rung to collapse as a person moves their weight around on the rung
down to make that rung go up and down is also considered less than ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0189] The main components of Ladder 1 are:

[0190] a fixed part, which in this embodiment takes the form of a fixed frame 10;

[0191] a movable part, which in this embodiment takes the form of a supporting frame 20;

[0192] · Tread 30;

[0193] a translation mechanism, which in this embodiment appears as a push-to-open mechanism 40;

[0194] the lifting mechanism 50; and

[0195] • Actuation mechanism 60 .

[0196] The push-to-open mechanism 40 connects the support frame 20 to the support frame 10 and allows the support frame 20 to translate horizontally relative to the fixed frame 10 . Lift mechanism 50 connects tread 30 to support frame 20 and allows tread 30 to rise relative to support frame 20 .

[0197] The ladder 1 is intended to be mounted at the base of a kitchen cupboard (or other item of furniture) so that it is located below the cupboard and in its stowed configuration ( figure 2 ) Only one crossbar (not shown) carried by the front face 21 of the support f...

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PUM

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Abstract

The invention discloses a stair. According to the invention, the stair 1 including at least one tread portion 30 and an elevating mechanism 50 by which the tread portion is elevatable to a deployed position in which the tread portion is presented to be stepped on by a person. The stair further includes a pedal 61. The elevating mechanism includes a stop 51e and a striking portion 54b. The striking portion is arranged to move into abutment with the stop when the tread portion is so elevated to its deployed position. The striking portion is also arranged to be driven against the stop by at least a portion of the person's weight. The pedal is pressible to move the striking portion away from the stop. The elevating mechanism is configured such that, when the striking portion is so moved away, depressing the tread portion moves the striking portion further away from the stop.

Description

technical field [0001] The present invention relates to a staircase. [0002] The invention will be described with reference to a ladder for use in a kitchen, although variations of the invention could be applied with good usefulness elsewhere. Background technique [0003] Reaching items placed on tall shelves or in tall cupboards can be difficult, especially for those of shorter stature. To facilitate access to such items, various stair arrangements have been employed. [0004] Conventional commercial ladders include a plurality of tread portions called rungs. Six feet is a common height for commercial ladders. A ladder of this size is inconvenient against the background of the kitchen. [0005] A step-stool is another form of step that is often employed in the kitchen. A typical step stool includes a padded seat portion and a step module carried underneath it. The stair module typically includes two treads and the module is mounted under the seat to pivot outwardly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F11/06
CPCA47B91/005A47B97/00A47B2220/05E06C1/005E04F11/06A47B77/10
Inventor P·鲁尼K·鲁尼
Owner 索恩索股份有限公司