CN2493955Y

CN2493955Y - Time wheel fixing structure for wristwatch movement

Info

Publication number: CN2493955Y
Application number: CN 01237643
Authority: CN
Inventors: 苏方中
Original assignee: 苏方中
Current assignee: Fujian Shangrun Precision Instrument Co., Ltd.
Priority date: 2001-04-27
Filing date: 2001-04-27
Publication date: 2002-05-29
Anticipated expiration: 2011-04-27

Abstract

The utility model discloses an hour wheel fixation structure of a watch movement, and the hour wheel ring groove is formed on the watch movement and is provided with a positioning column. An hour wheel ring is provided with a positioning hole corresponding with the positioning column. The hour wheel is directly fixed at the watch movement. The utility model achieves the whole sale of the watch movement, and reduces the installment article load for the buyers, as well as reducing the material loss.

Description

A kind of time quick release structure of timepiece movement

The utility model relates to a kind of time quick release structure of timepiece movement.

The hour wheel stationary installation of the timepiece movement of commonly using as shown in Figure 1, by timepiece movement 1, hour wheel 2, the time torus 3 form.Hour wheel 2 is placed through on the newel 11 of timepiece movement 1, and is arranged in the time race 12 of timepiece movement 1, the time torus 3 pass the hour wheel post 21 of hour wheel 2, be pressed on the hour wheel 2.Since the time torus 3 generally be the sheet metal of arch, can't directly hour wheel 2 be fixed on the timepiece movement 1, and must timepiece movement 1 be positioned on the platform by the assembler, place hour wheel 2 on newel 11, torus 3 in the time of in the placement, cover dial plate again and fix.Torus 3 Elastic Contact when hour wheel 2 lip-deep friction salient points 22 and generation are elastically-deformable, the elastic pressure that the elastic deformation of torus 3 produces when utilizing on the one hand is hour wheel 2 fixedly; The shape of being used to that the friction of utilizing the friction contact to produce is on the other hand adjusted pointer is rotated, and makes punctual timing.So the fabricator generally all adopt timepiece movement 1, hour wheel 2 with the time torus 3 separate packing, collocation mode is together sold, again by assembler's being made by manufacturers or users of buying.The structure of commonly using of this separation is not only made troubles to sale, and has increased the step and the difficulty of assembly technology, and torus 3 costs are higher when simultaneously frivolous, easily loses and causes loss.If by the time torus 3 metal material on bore aperture mode come the rivet clasp hour wheel, again because technological requirement is too high, and almost do not reach.

The purpose of this utility model is to provide a kind of structure that hour wheel can be fixed on the timepiece movement.

For achieving the above object, the utility model mainly by timepiece movement, hour wheel, the time torus form, hour wheel is placed through on the newel of timepiece movement, and is positioned at the time race of timepiece movement, and its end face upwards forms the friction salient point, the time torus be placed through on the hour wheel post of hour wheel, the time race outer ring form and take turns annular groove for the moment, which is provided with reference column, the time torus be the plane annular disk, be positioned at the hour wheel annular groove, which is provided with and the reference column pilot hole of riveted mutually.

After adopting said structure, the fabricator can be directly with the time torus pilot hole be enclosed within on the reference column of timepiece movement, and carry out riveted, hour wheel directly is fixed on the timepiece movement, and needn't carries out packing, simplified processing technology, thereby reached the purpose of complete sale; And the buyer can directly use the timepiece movement that assembles, and has alleviated buyer's assembly technology burden, the excess loss of torus when having avoided.

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Fig. 1 is a three-dimensional exploded view of commonly using product.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 is a part sectioned view of the present utility model.

See also Fig. 2, shown in Figure 3, the utility model by timepiece movement 1, hour wheel 2, the time torus 3 form.Hour wheel 2 is placed through on the newel 11 of timepiece movement 1, and race 12 when being arranged in, and its end face upwards forms friction salient point 22; The time race 12 outer rings form hour wheel annular groove 13, which is provided with reference column 131; The time torus 3 be placed through on the hour wheel post 21 of hour wheel 2, which is provided with and reference column 131 corresponding positioning hole 31.During manufacturing, can be directly with the time torus 3 pilot hole 31 be enclosed within on the reference column 131 of timepiece movement 1, and carry out riveted.For making hour wheel 2 fixing firm, reference column 131 is at least 3, also can be 4.Influence rotation in order to prevent the undue pressurized of hour wheel, simultaneously also to avoid hour wheel because of the pivoting friction deficiency, take place inertia to rotate and inaccurate when walking, as shown in Figure 3, the height of race 12 bottom surfaces 121 to hour wheel annular groove 13 bottom surfaces 132 should be bigger 0.01 millimeter to 0.02 millimeter to the height of salient point 22 end faces that rub than hour wheel 2 bottom surfaces the time.

Claims

1. the time quick release structure of a timepiece movement, by timepiece movement, hour wheel, the time torus form, hour wheel is placed through on the newel of timepiece movement, and is positioned at the time race of timepiece movement, and its end face upwards forms the friction salient point, the time torus be placed through on the hour wheel post of hour wheel, it is characterized in that: the time race outer ring form and take turns annular groove for the moment, which is provided with reference column, the time torus be the plane annular disk, be positioned at the hour wheel annular groove, which is provided with and the reference column pilot hole of riveted mutually.

2. the time quick release structure of a kind of timepiece movement as claimed in claim 1, it is characterized in that: hour wheel groove bottom to the height of hour wheel annular groove bottom surface should be bigger 0.01 millimeter to 0.02 millimeter to the height of the salient point end face that rubs than hour wheel bottom surface.

3. the time quick release structure of a kind of timepiece movement as claimed in claim 1, it is characterized in that: the reference column of timepiece movement is 3 or 4.