CN1155107A - Hand-winding-up spring of portable mechanical clock or watch - Google Patents

Abstract

To reduce the possibility of the application of excessive energy to a hand-wound spiral spring structure by clearly sensitively detecting the wound state of the spring and, at the same time, to prevent the breakage of parts. When the user of a portable mechanical watch further rotates the stem of the watch while the spiral spring of the watch is wound, the outer peripheral section 30A of the spring which is pressed against the internal surface 12B of an incense box 12 by a spring attachment 38 starts to slide on the surface 12B. However, the sliding torque between the section 30A and surface 12B is set at a large value, the sliding of the section 30A is obstructed and the obstruction is transmitted to the rotation of the stem. Therefore, the user can sense the wound state of the spring. When the user rotates the stem with a stronger force, the rotational force becomes stronger than the sliding torque between the section 30A and surface 12B and the section 30A slides on the surface 12B in the direction shown by the arrow F2. Therefore, the excessive energy is released and the breakage of parts can be prevented.

Description

The formula of the string on hand clockwork spring of portable mechanism clock and watch

The present invention relates to use in the portable clock such as wrist-watch for example the formula of the string on hand mechanical clock of clockwork spring, more particularly, relate to the improvement of string formula clockwork spring structure on hand.

The manual clockwork spring that uses in the mechanical clock, its structure are usually shown in Fig. 3 (A)-(D).Fig. 3 (A) (B) is in the rolling-in state for clockwork spring for clockwork spring is in relaxation state.In these figure, clockwork spring 10 is received to be contained in the barrel 12.Rotating axle 14 is housed in the center of barrel 12, and the structure that the inner hook part of its corresponding clockwork spring 10 divides is shown in Fig. 3 (C).Promptly be provided with the mould assembly hook 14A of projection on bar axle 14, it can combine with the opening 10A that is located at clockwork spring 10 medial end places.With respect to the structure of the outer hook portion of the clockwork spring 10 of barrel 12 shown in Fig. 3 (D).Promptly on the madial wall of barrel 12, be formed with recess 12A, and it can combine with the joggling part 10B of the V font that is located at clockwork spring 10 outboard end places.On the lateral wall of barrel 12, also be formed with driving wheel on barrel 16.

When clockwork spring 10 rolling-in, under the effect of extruding locking bar (not shown), bar axle 14 combines (not shown) with table by gear set (as upright wheel, castle wheel or the like).Like this, if the stem handle, bar axle 14 is rotated relative to barrel 12, make clockwork spring 10 by the state rolling-in shown in Fig. 3 (A) to the state shown in Fig. 3 (B).At other direction, the recuperability of the clockwork spring 10 of rolling-in will be passed to barrel 12, thereby driving wheel on barrel 16 is rotated, and then pass through gear set (as hour wheel and minute wheel or the like) carry-over moment to drive minute hand and hour hands.

Fig. 3 (E), (F) show the structure with the above-mentioned formula clockwork spring that winds up automatically accordingly.Promptly the outer circumferential side at clockwork spring 10 is provided with sliding attachment 20, thereby the peripheral part 10C pressure of clockwork spring 10 is attached on the barrel inwall.Sliding attachment 20 joins with clockwork spring peripheral part 10C, and clockwork spring peripheral part 10C is connected with the barrel inwall with state slidably, but in order on drawing, they to be distinguished, and show certain interval.

On bar axle 14, be provided with by the rotating object of gear, (not shown), by the motion of this rotor, bar axle 14 rotates and with clockwork spring 10 rolling-in.At this moment, when clockwork spring 10 has been rolled onto the limit (rolling-in state fully), when also applying excess energy because of being rotated further, bar axle 14 rotates, and makes clockwork spring 10 unitary rotation, is slided with respect to the inwall of barrel 12 by sliding attachment 20 extruding clockwork spring peripheral part 10C firmly.Like this, just can discharge excess energy, to prevent the parts breakage.

Yet the original formula of string on hand mechanical clock shown in Fig. 3 (A)-(D), is not provided with the sliding attachment 20 that winds up automatically.Like this, applied when surpassing necessary excess energy, had the danger that to damage clockwork spring 10 or the like when tightening clockwork spring 10 continuously.Particularly the battery type electronic watch is popularized, and the user has been unaccustomed to use string formula mechanical clock on hand mostly, has also improved so produce the possibility of the damaged accident of this class.

The present invention is conceived to above-mentioned shortcoming exactly, its objective is to provide a kind of degree of tightness state that can clearly feel clockwork spring, thereby can reduce to apply the possibility of excess energy, even applied excess energy, also can be well it be discharged, thereby can prevent the clockwork spring that manually winds up of the portable mechanism clock and watch of parts damages.

To achieve these goals, the invention is characterized in that it has, barrel; Be arranged on bar axle in this barrel with rotary way; Rotation that can be by the bar axle and the string on hand of rolling-in clockwork spring; Be located at aforementioned clockwork spring outboard end,, slidably aforementioned clockwork spring peripheral part be pressed in the sliding attachment on the barrel inwall when clockwork spring being received when being contained in the aforementioned barrel; And, be set at more than 1.5 times of output torque of aforementioned clockwork spring with of the slip torque of clockwork spring peripheral part with respect to aforementioned barrel inwall.

If adopt said structure, can be 2.0 times-5.0 times of aforementioned clockwork spring output torque with the slip torque settings of aforementioned clockwork spring peripheral part.

If adopt the present invention, because of being provided with sliding attachment, so can increase of the slip torque of clockwork spring peripheral part with respect to barrel at string clockwork spring place on hand.Like this

(1) resistance increases successively during the rolling-in clockwork spring, near complete tight state the time wrist-watch becoming heavy, thereby can feel its rolling-in state,

(2), also excess energy release can be prevented parts damages even continue scrolling and apply excess energy at clockwork spring rolling-in state.

Aforesaid and other purpose, the feature and advantage of the present invention can be clearer and more definite by the detailed description of carrying out below with reference to accompanying drawing.

Fig. 1 is the clockwork spring structure in the embodiment of the invention and the synoptic diagram of effect.

Fig. 2 is the synoptic diagram of clockwork spring shape among the expression embodiment.

Fig. 3 is the synoptic diagram of the original clockwork spring structure of expression.

The implication of reference number is in the accompanying drawing:

10 ... clockwork spring

10A ... opening

10B ... joggling part

10C ... peripheral part

12 ... barrel

12A ... recess

14 ... the bar axle

14A ... the mould assembly hook

16 ... driving wheel on barrel

20 ... sliding attachment

30 ... clockwork spring

30A ... peripheral part

32 ... medial extremity

34 ... opening

36 ... outboard end

38 ... sliding attachment

38A, 38B ... joggling part

40 ... pad

Explain form of implementation of the present invention below with reference to embodiment.With corresponding structure division in the above-mentioned prior art, also illustrate with prosign.

Fig. 2 shows this clockwork spring 30 in the present embodiment.In Fig. 2, clockwork spring 30 integral body shown in Fig. 2 (A) slightly is the S shape.Shown in Fig. 2 (B), 32 places also are provided with the opening 34 that combines with the mould assembly hook 14A of above-mentioned axle 14 at clockwork spring 30 medial extremitys.Shown in Fig. 2 (C), also be provided with sliding attachment 38 in addition at outboard end 36 places of clockwork spring 30.Observing along the direction of arrow among resulting Fig. 2 of Fig. 2 (C) (D) as seen, sliding attachment 38 combines with clockwork spring 30 by pad 40.

At the two ends of sliding attachment 38, be provided with joggling part 38A, 38B.Can make curvature (R) break-in mutually of sliding attachment 38 and clockwork spring 30 or barrel inwall like this, thereby obtain stable clockwork spring slip torque.

When the vortex shape that above-mentioned clockwork spring 30 is rolled into shown in Fig. 1 (A), available sliding attachment 38 is pushed down clockwork spring peripheral part 30A laterally by the inboard, and receives and be contained in the barrel 12.Like this, when the medial extremity opening 34 of clockwork spring 30 combined with the mould assembly hook 14A of bar axle 14, by the effect of sliding attachment 38, clockwork spring peripheral part 30A slidably was connected with the inwall 12B of barrel 12.Fig. 1 (B) shows clockwork spring 30 and receives state when being contained in the barrel 12, cuts the end face seen by direction shown in the arrow open shown in Fig. 1 (D) along Fig. 1 (B) line.In Fig. 1 (B), (C), for ease of understanding,, all drawn the gap between the inwall 12B of clockwork spring peripheral part 30A and barrel 12 at sliding attachment 38, in fact they all are contacted.

Like this, though present embodiment is the formula of manually winding up, be provided with and the similar sliding attachment 38 of formula that winds up automatically.And because of the sliding resistance that this sliding attachment 38 produces between clockwork spring peripheral part 30A and barrel inwall 12B, the torque of promptly sliding can be set at, such as about 1.3 times of original formula of winding up automatically.More particularly, the slip torque of original formula of winding up automatically is 1 o'clock if get clockwork spring output torque, is set at 1.25 times to 1.75 times usually.Corresponding, the sliding attachment 38 in the present embodiment is 1 o'clock if get clockwork spring output torque, can set the slip torque by about 2.0-3.0 times.And, can by, such as the width W of sliding attachment 38 (referring to Fig. 2 (D)), thickness (referring to Fig. 2 (C)), length L (referring to Fig. 2 (A)), and the selection of material or the like are adjusted the slip torque.

The following describes the effect of present embodiment.When the user for rolling-in clockwork spring 30 stems during (not shown), similar with above-mentioned prior art, bar axle 14 rotates along the direction shown in the arrow F1 among Fig. 1 (B).Like this, just can be by the relaxation state rolling-in clockwork spring 30 shown in Fig. 1 (B), up to the rolling-in state shown in Fig. 1 (C) (complete tight state).

In this state, show handle, then, show, and be subjected to the clockwork spring peripheral part 30A of sliding attachment 38 extruding, the inwall 12B slip of the relative barrel 12 of meeting quite heavy because clockwork spring 30 is in the rolling-in state if the user is rotated further.And, if adopt present embodiment, because of and above-mentioned barrel inwall between slip torque settings bigger, and elastic force is bigger, so can hinder this slip.Therefore, the rotation that this can obstruction table handle also acts on the user, thereby the user can know that clockwork spring has been in the rolling-in state with feeling.

At this moment, if the user does not experience this rolling-in state, be rotated further the table handle with bigger power, then the slip torque that produces between clockwork spring peripheral part 30A that is subjected to sliding attachment 38 extruding and barrel inwall 12B will increase, thereby clockwork spring peripheral part 30A is slided in barrel along direction shown in the arrow F2 among Fig. 1 (C).Like this, just can discharge excess energy, prevent the damage of parts preferably.

Therefore, for present embodiment, be in the formula clockwork spring that manually winds up, sliding attachment to be set, and bigger with the slip torque settings of clockwork spring.So the user can feel the rolling-in state of clockwork spring well, and can discharge excess energy and prevent parts damages.

The present invention has multiple form of implementation, can above-mentionedly be disclosed as the basis and do multiple variation.For example, it also comprises following other embodiments.

(1) in the aforementioned embodiment, be slip torque with the clockwork spring of sliding attachment generation, be set at 2.0-3.0 times of clockwork spring output torque.If with clockwork spring lower that the value of torque sets of sliding, then see more quite a lot ofly from the angle that prevents parts damages, it is then poorer to see from the angle of user's perception rolling-in.The experiment that this point is carried out shows, when for clockwork spring output torque more than 1.5 times the time, all can obtain good result, if more than 2.0 times, then can obtain fabulous result.

And, for the higher limit of slip torque, should be able to limit the slip of clockwork spring and can have preventing damaged effect.Such as, when exporting 5.0 times of left and right sides of torque, also can obtain to prevent damaged effect for clockwork spring.On the whole, be more than 1.5 times of torque of clockwork spring output, more quite a lot of is more than 2.0 times, particularly in 2.0-5.0 scope doubly, can obtain good result.

(2) in addition, the present invention applicable to various by table to the mechanism of bar axle, various by the mechanism of barrel to pointer.

Claims (2)

1. the formula of the string on hand clockwork spring of portable mechanism clock and watch is characterized in that it has:

Barrel;

Be located at bar axle in this barrel with rotary way;

Can rotate and the formula of the string on hand clockwork spring of rolling-in by the bar axle;

Be located at aforementioned clockwork spring outboard end, when clockwork spring being received the sliding attachment that slidably aforementioned clockwork spring peripheral part is pressed in when being contained in the aforementioned barrel on the barrel inwall;

And with the slip torque of clockwork spring peripheral part corresponding to aforementioned barrel inwall, the output torque that is set at aforementioned clockwork spring is more than 1.5 times.

2. the formula of the string on hand clockwork spring of portable mechanism clock and watch as claimed in claim 1 is characterized in that the slip torque settings with aforementioned clockwork spring peripheral part is 2.0 times-5.0 times that aforementioned clockwork spring is exported torque.

Images