Method and tool for adjusting joint gap of flat alarm
A technology of contact gap and adjustment method, which is applied in the direction of instruments, sound-generating devices, etc., can solve the problems of poor assembly accuracy, time-consuming, difficult visual inspection, etc., and achieve the effect of improving work efficiency
Inactive Publication Date: 2009-12-02
HONDA MOTOR CO LTD
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Problems solved by technology
[0013] However, the inspector decides to turn the adjusting screw to the right or to the left according to the sound he hears. Therefore, the inspector with little experience will spend more time on the adjustment.
Namely, skilled inspectors are required
[0014] In addition, when the part accuracy and assembly accuracy are poor, and the deviation of the contact gap is large, it is quite troublesome to adjust even for skilled inspectors
[0015] Moreover, as in Patent Document 2 Image 6 As shown, after assembly, the position of the contact gap is inside the flat electrical alarm 1, and it is difficult to visually inspect
Method used
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Embodiment Construction
[0036] Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. The figures are viewed according to the orientation of the reference numerals. In addition, all the screws are right-handed screws.
[0037] figure 1 It is an explanatory diagram of the structure of a flat alarm as an object to be regulated according to the present invention. The flat alarm 10 houses the fixed iron core 12 and the exciting coil 13 in the flat box 11, protrudes the adjusting screw 14 into the box 11, and uses the adjusting screw 14 to pass through the fixed contact with the screw support 15. The rod 16 supports the fixed contact point 17, and the movable contact point 18 is arranged opposite to the fixed contact point 17. The movable contact point 18 is supported by the movable contact point rod 19 and pushed toward the contact closing direction, and the vibrating membrane is pushed through the gasket 22. The sheet 23 is placed on the fl...
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It is an object of the present invention to provide a technology that can easily perform contact gap adjustment even for an operator with little experience in the contact gap adjustment of a flat alarm. Among figure (a), because contact (17,18) is closed, so, electric current flows to buzzer (71) from power supply (72) by contact (17,18), and buzzer (71) rings. The operator turns the screw (14) to the right, so that the movable contact rod (19) moves toward the vibrating diaphragm (23) side. In (b), continue to turn the screw (14) to the right. As a result, the movable contact rod (19) hits the recoil member (28) and stops moving, but because the fixed contact rod (16) continues to move, so , the contacts (17, 18) are slightly separated. At the moment of separation, the sound of buzzer (71) stops. The operator only needs to stop the rotation of the adjusting screw (14) at the moment when the buzzer (71) stops.
Description
technical field [0001] The invention relates to the contact gap adjustment technology of a flat alarm. Background technique [0002] A horn that is inexpensive and simple in structure has been widely used as a device for generating an alarm sound (for example, see Patent Document 1). [0003] Patent Document 1: Japanese Unexamined Patent Publication No. 2001-287588 ( figure 1 ) [0004] of Patent Document 1 figure 1 Among them, 2 is the vibrating diaphragm, 3 is the fixed iron core, 4 is the movable iron core, 4b is the step part set on the movable iron core 4, 6 is the excitation coil, 7 is the fixed contact, 8 is the movable contact , 8a is a contact plate supporting the movable contact 8, 9 is a sound board, and G is an air gap (エアギヤップ). [0005] When the exciting coil 6 is energized, the movable iron core 4 is attracted by the fixed iron core 3 and moves downward in the figure. With this movement, the stepped portion 4b comes into contact with the contact plate 8a a...
Claims
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IPC IPC(8): G10K9/13
Inventor 中泽祥浩
Owner HONDA MOTOR CO LTD