CN87205929U

CN87205929U - Sealed watch case

Info

Publication number: CN87205929U
Application number: CN 87205929
Authority: CN
Inventors: 朱宗武
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-03-31
Filing date: 1987-03-31
Publication date: 1988-03-16

Abstract

The utility model discloses a watch case with water proof, sweat proof, damp proof, dust proof, good sealing performance. The watch case is achieved by adopting the following technical methods; the screw thread in the edge of a rear cover is engaged with the external screw thread on the convex step at the bottom of a top frame; the external shape of the rear cover and the crown adopts a taper. An elastic material sealed ring is arranged on a handle axle, and the elastic material sealed ring is arranged between watch glass, and a top frame;, etc. The watch assembled with the watch case whose gadgets in the watch case with no corrosion in ten years, is in particular suitable for people who work in the moist environment or people with much perspiration.

Description

Sealed watch case

The utility model relates to a kind of wrist-watch of water proof and dust proof, is the wristwatch case that has sealing property about a kind of specifically.

The wristwatch case of general sealing (seeing accompanying drawing 3) is mainly combined by bonnet 1, upper ledge 2, watch glass 3 and the last bar handle that constitutes with arbor 4 and button 7, bonnet is a dish, there is the ring limit 19 of a level its marginal portion, be with externally threaded protruding circular ring 18 on the inner ring on ring limit 19, can twist mutually with the internal thread of upper ledge inboard and close, the plane and the upper ledge bottom surface on bezel ring, limit, back 19 are fitted.The sleeve pipe 20 that arbor passes in the axis hole of upper ledge side links to each other with movement, works to tighten clockwork spring and dials pin.Watch glass is by the elasticity of itself or the effect of a lining ring 17, the blind mortise wringing fit at its edge and inner edge place, upper ledge top.In order to prevent that extraneous dust, moisture content from entering watchcase internal contamination or corrosion movement, watchcase must have sealing property, adopts following method usually: be lined with the O-ring seal 9 that resilient material is made between the ring limit 19 on the bonnet and the faying face of upper ledge for this reason; In the button annular groove is arranged near the arbor root, the O-ring seal 21 of the flexible material of groove liner, when the sleeve pipe inserted button, the end of sleeve pipe and this O-ring seal 21 were pressed on together.But, because the restriction of wrist-watch thickness, bonnet is generally made flat substantially shape, thereby when the band table, the ring limit 19 on the bonnet and the joint close mouth of upper ledge are nearer apart from the skin of wrist, when people at washing articles, operation at sea, work or be engaged in the hot environment operation in the paddy field, ass work is moving wait perspire more when movable, the sweat that oozes out on moisture that adheres on the wrist skin or the skin just enters the binding face of bonnet and upper ledge easily by the joint close mouth of bonnet and upper ledge, make the binding face corrosion, and make the O-ring seal between the binding face lose sealing function; Between button and the upper ledge lateral surface, exist slight gap between button and the sleeve pipe, because capillary action, normal occlusion has sweat in these slits, makes button and sleeve pipe produce corrosion and makes O-ring seal inefficacy button in; Because watch glass and upper ledge all are harder materials, thus very tight even watch glass and upper ledge cooperate, still can there be some slits, especially can not seal effectively steam.Therefore, as long as the sealing property at above-mentioned three places has a place to lose efficacy, just can not prevent that moisture from entering watchcase inside.

The purpose of this utility model is exactly under the situation that does not increase watchcase thickness or volume, provides a kind of sealing property improved wristwatch case, is particluarly suitable for using under wet environment or the frequent situation of perspiring.

Accompanying drawing 1 is the axial section of a kind of watchcase assembled state of the present utility model.

Accompanying drawing 2 is partial enlarged drawings of accompanying drawing 1.

Accompanying drawing 3 is a kind of in men's style axial sections of unifying movement wristwatch case assembled state of selling on the market.

Wristwatch case (seeing accompanying drawing 1 and accompanying drawing 2) according to the sealing that the utility model proposes, mainly comprise bonnet 1, upper ledge 2, watch crystal 3 and wind handle by what arbor 4 and button 7 formed, bonnet and upper ledge bottom surface are harmonious, be lined with the sealing ring 9 that elastomeric material is made between them, the blind mortise tight fit on the edge of watch crystal and upper ledge top, the arbor 4 that winds handle inserts in the axis hole 5 that the upper ledge sides connect, and links to each other with movement in the watchcase. It is characterized in that said bonnet makes the bowl-type of edge 6 perks, upper frame bottom inner edge is made the step 8 of projection, be provided with screw thread at the medial surface at the edge 6 of bonnet and the lateral surface of upper ledge bottom stage, bonnet and upper ledge can be screwed up, thereby bonnet edge end face 12 can be close to the outer edge surface 13 of upper frame bottom to be closed, and make the sealing ring 9 between them compacted, so just can be in the situation that does not increase whole watchcase thickness, joint close open height between bonnet and the upper ledge is increased, thereby avoid well the sweat on the skin to infiltrate between bonnet and the upper ledge.

Wristwatch case according to the sealing of the utility model regulation, bonnet edge lateral surface can be made outward-dipping taper, button can be less than the diameter of the other end 10 near an end 11 diameters of upper ledge simultaneously, thereby the space between button and the bonnet edge is increased, avoided that sweat sucks in the axis hole of housing because of capillarity on the skin.Can put the O-ring seal 14 that resilient material is made on the position of arbor 4 in axis hole 5, fill the slit between axis hole 5 and the arbor 4, prevent that moisture and dust from entering in the watchcase.In order to prevent that O-ring seal 14 from endwisely slipping on arbor 4, can on arbor 4, make groove 15, O-ring seal 14 can be locked in groove 15.In addition, in order to increase the sealing property of whole watchcase, the O-ring seal of can the liner resilient material between the mating surface of watch glass and upper ledge making 16.

For can preventing the sweat on the skin, the wristwatch case that makes sealing of the present utility model infiltrates watchcase, the edge of bonnet should perk, the height of bottom is decided according to dissimilar wrist-watches from bonnet edge end face to bonnet, be generally 2.5～3.2mm, the bottom thickness of bonnet is identical with general sealing wristwatch case, the width of bonnet edge end face is advisable can place O-ring seal 9, is generally about 1.5mm.In order not increase the thickness of watchcase, reduce certain thickness than inner edge in corresponding to the width range of bonnet edge end face in last frame bottom outer rim, form a step, this thickness size should be to guarantee that minimum thickness is no less than 0.2mm between frame bottom outer edge surface and the axis hole, simultaneously can make the step lateral surface that screw thread can be set, thus guarantee bonnet edge end face 12 and last frame bottom outer edge surface 13 can be close to be combined into suitable.Bonnet edge end face 12 and last frame bottom outer edge surface 13 should be bright and clean and parallel to each other, can be compacted with the driving fit of joint close mouth and the O-ring seal 9 between bonnet and the upper ledge that guarantee bonnet and upper ledge.O-ring seal 9 can be placed between bonnet edge end face 12 and the last frame bottom outer edge surface 13 simply, also can make groove at bonnet edge end face, and O-ring seal is fixed in the groove.In order to make between bonnet edge lateral surface and the button space enough big, can avoid producing capillarity and the sweat on the skin is sucked in the axis hole of upper ledge, the lateral surface at bonnet edge should be done tapered, the size of tapering should be generally 1:1.1～0.8 in that to guarantee that bonnet edge base portion thickness satisfies under the prerequisite of physical strength needs big as much as possible.The bonnet lateral surface that tilts can also be made the cambered surface that caves inward, and then waterproof effect is better.The button profile should adopt the taper of the diameter of close upper ledge one end 11 less than the other end 10 diameters simultaneously.The diameter of the other end 10 is identical with the button diameter of general wrist-watch, the ratio of size diameter can be 1:0.6～0.7, taper can be conical, ball taper or 2 kinds with upper conical array configuration, the lateral surface of button can be pressed into decorative pattern, when going up bar and dial pin to increase and the friction force of finger.Button can be solid, and can there be an obstructed screw at its center, so that arbor can be fixed on the button with the screw thread of one end.Seal in order to make between arbor and the axis hole, arbor can put one or more O-ring seal on the position in axis hole, and the size of O-ring seal should be to be advisable between the arbor that can be pressed on axis hole.Can make groove on arbor, O-ring seal can be fixed on the arbor, dial under the needle-like attitude to pull up at last bar handle the position of groove, and the distance that still can keep being no less than about 0.5mm between O-ring seal in the axis hole and the upper ledge lateral surface is advisable.Axis hole can be identical with general sealing wristwatch case with respect to the position on upper ledge top, but can cancel common sleeve pipe, thereby can guarantee between axis hole and the last frame bottom outer edge surface enough thickness is arranged, the diameter of axis hole is generally about 1.5mm, and the arbor diameter is advisable can freely rotating and pull up in axis hole.In order to guarantee the sealing property of sealing wristwatch case integral body of the present utility model, between the mating surface of watch glass and upper ledge top blind mortise, can place the O-ring seal 16 that resilient material is made, promptly make groove on the blind mortise plane, O-ring seal 16 is fixed in the groove.The bonnet of the wristwatch case of sealing of the present utility model, upper ledge, button, arbor can adopt and the identical stainless steel material of general sealing wristwatch case; Watch glass adopts known pmma material; O-ring seal adopts known rubber, plastics elastomeric material, and its cross sectional shape can be rectangle, zero type etc.

The wristwatch case of this sealing that provides with the utility model, suiting especially, people movable or that perspire more uses in wet environment, can keep can not producing corrosion in the watchcase more than 10 years, and the sealing wristwatch case of market sale generally uses in these cases and will produce corrosion after 1 year in the watchcase, and the former with the latter is compared, the watchcase gross thickness can not increase, and manufacture method is uncomplicated, and cost is close.

Further describe the utility model by the following examples, but the utility model is not subjected to the restriction of this embodiment.

What attached Fig. 1 and 2 showed is a kind of embodiment of the present utility model, its structure is as follows: bonnet 1, upper ledge 2, watch glass 3, arbor 4, button 7 and O-

ring seal

9,14,16 are by method manufacturing well-known in the art, bonnet, upper ledge, arbor and button adopt stainless steel material, watch glass adopts organic glass, and O-ring seal adopts elastomeric material.The bonnet external diameter is 35.0mm, bonnet edge end face 12 wide 1.7mm, and it is 2.9mm to the bonnet bottom level.Bonnet edge 6 lateral surface taperings are 1:0.95, and radian is R6mm.Last frame bottom beam overall is 2.4mm, and step 8 high 1.1mm, bonnet twist mutually with the internal and external threads on the step lateral surface with bonnet edge medial surface with upper ledge and close, and external thread is M31.8 * 0.25.It is the annular groove of 0.5 * 0.4mm that bonnet edge end face has the cross section, and wherein being embedded with the cross section is the O-ring seal 9 of 0.6 * 0.6mm.The combination of two Rotary-tables of button profile, button is 3.0mm near the diameter of upper ledge one end 11, and the diameter of the other end 10 is 5.0mm, and the stage casing diameter is 4.5mm, and the button lateral surface is pressed with umbrella profile of tooth decorative pattern.There is obstructed screw at the button center, and an end of arbor is screwed in the screw with screw thread, and the arbor diameter is 1.44mm, and shaft hole diameter is 1.54mm, frame bottom outer edge surface 131.2mm on the axis hole centre distance.It is the groove 15 of 1.0mm that diameter is arranged on the arbor, groove width 0.7mm, and apart from upper ledge lateral surface 1.5mm, wherein being with the cross section is the O-ring seal 14 of 0.8 * 0.5mm.Make the annular groove of sectional area 0.5 * 0.4mm in the blind mortise plane, upper ledge top, the cross section is that the O-ring seal 16 of 0.6 * 0.6mm embeds wherein, and watch glass embeds in the blind mortise, be pressed on the O-ring seal and with the inclined-plane wringing fit of blind mortise.Watchcase combination back gross thickness is 10.7mm.

Claims

1, a kind of wristwatch case of sealing, last bar handle of forming by bonnet 1, upper ledge 2, watch glass 3, O-ring seal 9 and by arbor 4 and button 7 etc. constitutes, and it is characterized in that:

A, bonnet edge 6 are meshed with the external thread on the step 8 of upper ledge 2 bottom protrusion with internal thread.

The axis hole 5 that b, last bar handle directly run through upper ledge 2 sides links to each other with movement.

In the annular groove that cooperates with watch glass 3 on c, the upper ledge 2 O-ring seal 16 is arranged.

2, the wristwatch case of sealing according to claim 1 is characterized in that bonnet edge 6 is outward-dipping tapered, and the cambered surface that caves inward is arranged on the lateral surface.

3, the wristwatch case of sealing according to claim 1 is characterized in that the button 7 of bar handle is the Rotary-table of two combinations, should be less than the diameter of the other end 10 near the diameter of upper ledge one end 11.

4, according to the wristwatch case of claim 1 or 3 described sealings, it is characterized in that the part of arbor 4 in axis hole 5 of bar handle has annular groove 15, O-ring seal 14 is arranged in the groove 15.