Job-site tool

A technology for working machines and lenses, applied in agricultural machinery and implements, agriculture, harvesters, etc., can solve the problems of lack of waterproof performance, LED failure, etc., and achieve the effect of ensuring waterproof performance, inhibiting immersion, and excellent waterproof performance.

Active Publication Date: 2020-06-19
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the plastic sheet is peeled off or worn, there is a possibility that sufficient waterproof performance cannot be obtained only by attaching the plastic sheet.
Furthermore, there is a possibility that LEDs and the like may malfunction due to liquid intrusion through the hole of the operation panel.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0091] According to the first embodiment described above, the following effects can be obtained.

[0092] (1) The LEDs 41 to 45 provided on the substrate 30 are covered with the large lens 60 and the small lens 71 . Furthermore, the surroundings of the large lens 60 and the small lens 71 are covered with a resin member 80 and fixed to the substrate 30 . Therefore, the large lens 60 and the small lens 71 are less likely to fall off from the substrate 30 . In addition, the large lens 60 and the small lens 71 are more wear-resistant than plastic sheets. Furthermore, the lead wire 50 is also covered with the resin member 80 . Therefore, the infiltration of liquid into LED41-45 and the lead wire 50 can be suppressed, and the outstanding waterproof performance of the display part 9 can be realizable.

[0093] (2) LED41,42 is respectively covered with the large lens 60, and LED43-45 is respectively covered with the small lens 71. Thereby, the waterproof performance for each of LE...

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PUM

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Abstract

The invention provides a job-site tool, comprising a display having excellent waterproof performance. The job-site tool that operates using DC power is provided with a battery and a display. The battery is configured to output DC power. The display is configured to display information regarding the job-site tool. In addition, the display includes a substrate (30), at least one light emitter, an energization member (50), lenses (60, 71), and a resin member. The light emitter is provided on the substrate (30). The energization member (50) supplies DC power to the light emitter. Lenses (60, 71) are provided on the substrate (30) and cover the light emitters. The resin member has a lens coating portion that covers the periphery of the lenses (60, 71) so as to be fixed to the substrate (30), and an energization coating portion that covers the energization member.

Description

technical field [0001] The present disclosure relates to a work machine including a display unit. Background technique [0002] A working machine using electric power from a battery may include a display unit including a light emitter such as an LED in order to report information related to the working machine. For example, the rechargeable impact driver described in Patent Document 1 includes a tact switch for switching operation modes, and LEDs for displaying the operation mode, the remaining battery level, and the like. [0003] In the above-mentioned rechargeable impact driver, the tact switch and the LED are provided on the substrate, and an operation panel having a plurality of holes is assembled on the substrate. The operation panel is arranged so that the positions of the plurality of holes correspond to the positions of the tact switches and the LEDs, and is integrated with the substrate by a potting material. Furthermore, a thinner plastic sheet is pasted on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D34/68A01D34/82B25F5/00B25B23/00B25B21/02G09F9/33
CPCA01D34/68A01D34/82B25F5/00B25B23/00B25B21/02G09F9/33A01D2034/907A01D34/90A01B1/065A01D34/416
Inventor 保住昭宏
Owner MAKITA CORP
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