JPH0420628U

JPH0420628U -

Info

Publication number: JPH0420628U
Application number: JP5873090U
Authority: JP
Priority date: 1990-06-02
Filing date: 1990-06-02
Publication date: 1992-02-20
Anticipated expiration: 2005-06-02
Also published as: JPH0810859Y2

Description

[Brief explanation of the drawing]

第１Ａ図、第１Ｂ図および第１Ｃ図は、本考案
の一実施例における主要部を拡大して示す図であ
り、そのうち第１Ａ図は係合部が衝突した瞬間を
示す斜視図、第１Ｂ図は係合部が衝突した直後の
様子を示す斜視図、第１Ｃ図は第１Ｂ図のセンサ
ーレバー４の本体部分を除いて示した平面図であ
る。第２Ａ図は本考案の一実施例のストツプモー
ドの状態を示す平面図、第２Ｂ図は同実施例の動
作モードの状態を示す平面図、第２Ｃ図は同実施
例のフルオートストツプの作動状態を示す平面図
である。第３Ａ図は同実施例のカム回転体６のモ
ード切換えカム６ｂの前端部近傍を示す斜視図、
第３Ｂ図はその縦断面図、第３Ｃ図はその成形金
型の形状を示す断面図である。第４図は、同実施
例の主要部の寸法記号を説明するための図である
。第５図は従来のカム機構の一例を示す平面図で
あり、センサーレバー４の爪４ａとカム回転体６
のモード切換えカム６ｂの前端部が衝突した状態
を示している。第６Ａ図は、従来のカム機構にお
いて、センサーレバー４の爪４ａの先端部１４ａ
の稜と、モード切換えカム６ｂの前端部１６ｂの
稜が平行である場合の、両者が衝突する直前の状
態を示す斜視図、第６Ｂ図はその衝突瞬間の状態
を示す斜視図、第６Ｃ図は双方の稜同士が互いに
ねじれの関係にある場合の衝突寸前の状態を示す
斜視図、第６Ｄ図はその衝突の瞬間の状態を示す
斜視図である。図において、１は基板、２はロツク板、３は操
作レバー、４はセンサーレバー、４ａは爪、５は
リール台、６はカム回転体、６ａは揺動カーム、
６ｂはモード切換えカム、７はスリツプ板、１４
ａは爪４ａの先端部、１６ｂはモード切換えカム
６ｂの前端部を示す。なお、図中、同一番号を付
した部分は、同一または相当の要素を示す。 Figures 1A, 1B and 1C are enlarged views showing the main parts of an embodiment of the present invention, of which Figure 1A is a perspective view showing the moment when the engaging parts collide, and Figure 1B is a perspective view showing the moment when the engaging parts collide. The figure is a perspective view showing the state immediately after the engagement portion collides, and FIG. 1C is a plan view of the sensor lever 4 shown in FIG. 1B with the main body portion removed. FIG. 2A is a plan view showing the stop mode state of an embodiment of the present invention, FIG. 2B is a plan view showing the operating mode state of the same embodiment, and FIG. 2C is a plan view showing the fully automatic stop state of the same embodiment. FIG. FIG. 3A is a perspective view showing the vicinity of the front end of the mode switching cam 6b of the cam rotating body 6 of the same embodiment;
FIG. 3B is a longitudinal sectional view thereof, and FIG. 3C is a sectional view showing the shape of the molding die. FIG. 4 is a diagram for explaining the dimension symbols of the main parts of the same embodiment. FIG. 5 is a plan view showing an example of a conventional cam mechanism, in which the pawl 4a of the sensor lever 4 and the cam rotor 6
This shows a state in which the front end of the mode switching cam 6b has collided. FIG. 6A shows a tip 14a of a pawl 4a of a sensor lever 4 in a conventional cam mechanism.
Fig. 6B is a perspective view showing the state immediately before the collision occurs when the ridge of the mode switching cam 6b and the ridge of the front end portion 16b of the mode switching cam 6b are parallel, and Fig. 6C is a perspective view showing the state at the moment of the collision. 6D is a perspective view showing a state on the verge of collision when both edges are in a twisted relationship with each other, and FIG. 6D is a perspective view showing the state at the moment of the collision. In the figure, 1 is a base plate, 2 is a lock plate, 3 is an operating lever, 4 is a sensor lever, 4a is a pawl, 5 is a reel stand, 6 is a cam rotating body, 6a is a swinging cam,
6b is a mode switching cam, 7 is a slip plate, 14
a indicates the tip of the claw 4a, and 16b indicates the front end of the mode switching cam 6b. In addition, in the figures, parts given the same numbers indicate the same or equivalent elements.

Claims

[Claims for Utility Model Registration] (1) A sensor lever that is displaced only when receiving a predetermined signal from the outside, and a first operating mode by not engaging the sensor lever when the sensor lever is not displaced. and when the sensor lever is displaced, the mode switching cam engages with the sensor lever and causes the sensor lever to perform a predetermined operation, thereby switching from the first operation mode to the second operation mode. In the cam mechanism, the tip of the starting end of the engaging portion of the sensor lever and the mode switching cam is formed at a sharp angle, and the tip of the starting end of the engaging portion of the sensor lever and the mode switching cam is A cam mechanism characterized in that one or both of the respective engaging portions are formed into a tapered shape so that the upper end or the lower end thereof protrudes forward. (2) The cam mechanism according to claim 1, wherein at least the tapered portion at the tip of the engaging portion is made of an elastic body. (3) It has a swinging cam that rotates eccentrically and swings the driven object along the outer circumferential surface, and a mode switching cam whose tip is formed at a sharp angle. A first rotating body that constantly rotates; a second rotating body that alternately rotates and stops rotating; and a claw having a tip with a sharp angle;
and a sensor lever that performs a rocking motion along a rocking cam surface of the first rotary body by being biased in the rotational direction of the rotary body, when the second rotary body stops rotating. , in a cam mechanism that performs mode switching by displacing the sensor lever by a mode switching cam of the first rotating body, the front end of the mode switching cam of the first rotating body and the sensor claw of the sensor lever A cam mechanism characterized in that one or both of the distal end portions of the cam mechanism is tapered so that the upper end or the lower end protrudes forward.