Mainspring Driven Carriage Lifting Mechanism and Its Toaster

Abstract

A spring-driven carriage elevating mechanism and a toaster thereof, relating to a toaster and a carriage elevating mechanism thereof. The mainspring drives the carriage lifting mechanism, including the carriage (303), the spring (302), the rotating shaft (305) and the rotating shaft fixing seat (306) are arranged on the carriage (303), and the outer surface of the carriage (303) is fixed There is a rotating shaft fixing seat (306), the rotating shaft fixing seat (306) is provided with a rotating shaft (305), the rotating shaft (305) is pivotally connected with the rotating shaft fixing seat (306), and the mainspring (302) is wound on the rotating shaft (305) , the inner end of the spring (302) is fixed on the rotating shaft (305), and the outer end of the spring (302) is fixed on the top of the movement assembly (2). The invention has simple structure, low requirements for the cooperation of each part, balanced strength, and variable force springs can be produced, and the stroke is not limited, and there is no problem that the life is affected by too long stretching or too short compression, and can meet the needs of small bread It will not be bounced off, and it can satisfy the requirement that the big bread can be lifted to the required position.

Description

technical field [0001] The invention relates to a toaster and its sliding frame lifting mechanism. Background technique [0002] In the existing toaster design, the combination of the sliding frame assembly and the spring is often used to realize the lifting function of the bread, but this design has a common problem. When toasting a relatively heavy bread, the bread cannot bounce. If you want to make it bounce, you must increase the strength of the spring, but in this way, when baking a relatively light bun, the bun is very easy to be bounced after the baking is over. In such a situation where it is difficult to balance the two, customers often choose to keep the small bread from flying, and take out the large bread by manual lifting. [0003] However, the recent GS safety certification has added a new EK17AG2 (EK1 for short) test requirement: use a fake bread slice model with a height of 60mm, a thickness of 10mm, and a weight of 50g under normal working conditions. The ...

AI Technical Summary

Problems solved by technology

Because in fact, the weight of 85*85mm small bread for daily use is about 20g, but the test needs to use a fake bread model with a height of 60mm and a weight of 50g, and it must be flush with the top section of the fuselage, so the strength of the spring must be increased. For normal small bread, the probability of bounce has increased; in addition, some customers also require to bake large bread, so the stroke of the carriage will be doubled compared with the conventional one (the conventional one is about 45mm) , has now increased to about 95mm), so it is difficult to achieve these requirements at the same time only by conventional springs

Because the length of the spring is limited by the height of the toaster core and other parts, to meet the stroke requirement of 95mm, the compression ratio (or stretch ratio) of the spring will become quite large, and the life of the spring It will not be able to bear it; and when the spring is compressed to the minimum (or stretched to the maximum), its strength is also the maximum, so that a normal bun is easily bounced at the moment of its power release; and as its length recovers , the strength is also gradually decreasing, so it is difficult for the fake bread model with a height of 60 and a weight of 50g to be used in the EK1 test to rise to the right position.

[0005] Of course, the existing gear structure toasters on the market can meet these functional requirements, but the gear structure has high manufacturing precision, many parts, complex assembly, and high requirements for the cooperation of each part. Often after the life test, some parts are deformed. It can cause the sliding frame to not slide smoothly, or even get stuck

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