KR20230099616A - Ceramic wrist watch with waterproof and vibrationproof packing - Google Patents

Abstract

The present invention relates to a watch, and in particular, a watch with improved waterproof performance by installing a predetermined packing on a crown pipe to prevent penetration of moisture from the outside and thereby improve waterproof performance.

Description

Ceramic wristwatch having waterproof and dustproof packing {CERAMIC WRIST WATCH WITH WATERPROOF AND VIBRATIONPROOF PACKING}

The present invention relates to a ceramic watch, and in particular, a ceramic watch having a waterproof and dustproof packing capable of absorbing vibration while preventing moisture from permeating from the outside by installing a predetermined packing on a crown pipe.

In general, a wrist watch is a technology-intensive high value-added product representing the precision machinery industry. It consists of As shown in part in FIG. 1, the wrist watch includes a case CA in which a movement is built-in. A crown pipe CP is provided outside the case CA. A crown is installed on the crown pipe CP to adjust the time or date of the watch.

For the outer material of such a wristwatch, advanced new materials are used according to market trends, and stainless steel is traditionally used the most. However, scratches easily occur on the surface of the material, heavy weight has been pointed out as a problem when worn, and problems of surface corrosion have been raised after various water sports activities. In order to solve this problem, a wrist watch using a ceramic material is being used.

In this ceramic wristwatch, ceramic materials are used for all other parts except for the crown pipe (CP).

However, the above-described conventional ceramic wrist watch has a problem in that waterproof performance is relatively low and dust-proof performance for absorbing vibration is also poor because ceramic materials are used.

On the other hand, the above-described watch and crown configuration itself is widely known and is particularly described in detail in the prior art documents below, so description and illustration thereof will be omitted.

Korean Registered Patent No. 10-2059748 Korean Patent Publication No. 10-2007-0012823

The present invention is to solve the above-mentioned problems, including a case of ceramic material, a crown pipe provided in the case, and packing of an elastic material provided between the case and the crown pipe, including water intrusion by the packing It is an object of the present invention to provide a ceramic wristwatch having a waterproof and dustproof packing capable of improving the waterproof and dustproof performance of the ceramic wristwatch by preventing vibration and absorbing vibration.

However, the object of the present invention is not limited to the above-mentioned object, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, the present invention provides a ceramic case (CA), a crown pipe (CP) provided in the case (CA), and elasticity provided between the case (CA) and the crown pipe (CP). It includes a packing (PK) made of a material, and the packing (PK) includes a first packing 100 and a second packing 200 disposed in the longitudinal direction of the crown pipe (CP) and spaced apart at a predetermined interval, The case CA includes a ring-shaped case body CA1 and a contact portion CA2 formed on one side of the case body CA1 and recessed to a specific height, and the crown pipe CP is the case body. (CA1) an insertion portion (CP2) inserted into the inside, a plate-shaped head portion (CP1) formed at one end of the insertion portion (CP2) and spaced apart from the contact portion (CA2) by a predetermined distance, and the insertion portion (CA1). (CP2) includes an insertion groove CP3 formed in a circumferential direction on an outer surface and recessed by a predetermined depth, and the first packing 100 is disposed between the head portion CP1 and the contact portion CA2, The second packing 200 is inserted into the insertion groove CP3 and provides a ceramic wristwatch having a waterproof and dustproof packing that is closely attached to the inner surface of the case body CA1.

In the above, by forming a screw thread (CP-R) on the outer surface of the crown pipe (CP) and forming a screw thread (CA-R) on the inner surface of the case (CA), the crown pipe (CP) and the case (CA) are mutually screwed together

In the above, a case back CB is attached to one side of the case CA, and the case back CB is detachably provided by a fixing screw 700.

In the above, the first packing 100 has a disk shape and includes a first packing body 110 made of an elastic material with an opening 120 formed at the center, and the second packing 200 has a disk shape and has an opening 120 at the center. It includes a second packing body 210 made of an elastic material in which a central opening 220 is formed.

A third packing 300 provided between the contact portion CA2 and the first packing 100 is further included, and the third packing 300 is a 31st packing (disposed in the longitudinal direction of the crown pipe CP) 310), a 32nd packing 320 and a central packing 330, the 31st packing 310 and the 32nd packing 320 are disposed on both sides of the central packing 330, and the 31st packing 310 and the 32nd packing 320 are disposed. The packing 310 has a disk shape and includes a 31st packing body 311 made of an elastic material in which an opening 311-1 is formed in the center. Disposed between the first packings 100, the 32nd packing 320 has a disk shape and includes a 32nd packing body 321 made of an elastic material having an opening 321-1 formed in the center, 32 The packing body 321 is disposed between the contact portion CA2 and the central packing 330, and the central packing 330 has a disk shape in the center of an elastic material having an opening 331-1 formed therein. It includes the packing part body 331.

In the above, the central packing 330 further includes contact balls 332 of an elastic material provided in the central packing part body 331, protruding on both sides, and provided in plurality in a circumferential direction, and the 31st packing 310 further includes a ball accommodating part 312 provided in the direction of the central packing 330 of the 31st packing body 311 and accommodating the contact ball 332, and the ball accommodating part 312 It has a hemispherical shape and has a hollow shape, so that the contact ball 332 is accommodated in the ball receiving part body 3121 of elastic material and the elastic material connecting between the ball receiving part body 3121 and the 31st packing body 311 The 32nd packing 320 is provided in the direction of the central packing 330 of the 32nd packing body 321, and the ball receiving part 322 in which the contact ball 332 is accommodated. ), and the ball accommodating part 322 has a hemispherical shape but has a hollow shape, so that the ball accommodating part body 3221 of elastic material in which the contact ball 332 is accommodated and the ball accommodating part body 3221 and a connection bar 3222 made of an elastic material connecting between the and the 32nd packing body 321.

In the above, a fourth packing 400 provided between the inner surface of the case body CA1 and the insertion part CP2 is further included, and the fourth packing 400 is inserted into the inner surface of the case body CA1, It includes an insertion packing 410 made of an elastic material protruding inward by a specific thickness, and a contact roller 420 made of an elastic material provided in the insertion part CP2 and in close contact with the insertion packing 410, the contact roller ( 420) is rotatably provided in a mounting groove CP4 formed on an outer surface of the insertion portion CP2, and the mounting groove CP4 is recessed to a specific depth on the outer surface of the insertion portion CP2 and inserted into the insertion portion CP2. It is formed in the longitudinal direction of the portion CP2.

In the above, a contact packing 430 inserted into the bottom of the mounting groove CP4 is further provided, and the contact roller 420 contacts the insertion packing 410 and the contact packing 430, respectively. 421), and a rotation pin 422 disposed to cross the mounting groove CP4 and to which the contact roller body 421 is installed.

In the above, an oil input hole CP5 for supplying oil to the mounting groove CP4 is formed on one side of the thickness surface of the insertion part CP2 where the mounting groove CP4 is formed, and the contact packing 430 has An input hole 431 into which oil supplied through the oil input hole CP5 is input is formed, and oil is supplied to the contact roller body 421 in contact with the contact packing 430 .

Features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Prior to this, the terms or words used in this specification and claims should not be interpreted in a conventional and dictionary sense, and the inventor may appropriately define the concept of the term in order to explain his or her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

According to the present invention described above, there is an effect of preventing penetration of moisture from the outside and absorbing vibration.

1 is a cross-sectional view of a ceramic wristwatch according to an embodiment of the present invention;
Figure 2 is a schematic diagram showing that the crown pipe and the case of the ceramic wrist watch according to an embodiment of the present invention are screwed together;
3 is a schematic diagram showing a coupling relationship between a crown bag and a fixing screw of a ceramic wrist watch according to an embodiment of the present invention;
4 is a schematic diagram illustrating a first packing of a ceramic wristwatch according to an embodiment of the present invention;
5 is a schematic diagram illustrating a second packing of a ceramic wristwatch according to an embodiment of the present invention;
6 and 7 are cross-sectional and cross-sectional perspective views showing that a third packing of a ceramic wristwatch according to an embodiment of the present invention is provided;
8 is an exploded perspective view of a ceramic wristwatch according to an embodiment of the present invention;
9 and 10 are separated perspective views showing a third packing of a ceramic wrist watch according to an embodiment of the present invention;
11 is a cross-sectional view of a third packing of a ceramic wristwatch according to an embodiment of the present invention;
12 is an exploded cross-sectional perspective view showing a third packing of a ceramic wristwatch according to an embodiment of the present invention by separating the cross section;
13 is a partial cross-sectional view showing a cross-section of a case to explain a fourth packing of a ceramic wristwatch according to an embodiment of the present invention;
14 is a cross-sectional perspective view for explaining a fourth packing of a ceramic wrist watch according to an embodiment of the present invention;
15 is a perspective view and a partially enlarged view showing a fourth packing of a ceramic wristwatch according to an embodiment of the present invention;
16 and 17 are partial cross-sectional views illustrating a fourth packing of a ceramic wrist watch according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following examples do not limit the scope of the present invention, but are merely illustrative of the components presented in the claims of the present invention, are included in the technical spirit throughout the specification of the present invention, and constitute the claims. Embodiments including elements that can be replaced as equivalents in elements may be included in the scope of the present invention.

As shown in FIGS. 1 to 8 , the ceramic wrist watch 10 of the present invention includes a ceramic case CA and a crown pipe CP provided in the case CA. The case (CA) and the crown pipe (CP) itself can apply the prior art, so redundant descriptions and illustrations thereof will be omitted. The ceramic wrist watch 10 of the present invention includes an elastic packing (PK) provided between the case (CA) and the crown pipe (CP). The packing (PK) prevents penetration of moisture while absorbing transmitted vibration to improve waterproof and dustproof performance.

At this time, as shown in Figure 2, the crown pipe (CP) can be screwed to the case (CA). Conventionally, the crown pipe and the case are fixed to each other by adhesive, but in the case of this prior art, there is a problem in that the waterproof performance is poor. The present invention solves this problem and improves the waterproof performance by screwing the crown pipe (CP) and the case (CA) together as described above. On the other hand, by forming a screw thread (CP-R) on the outer surface of the crown pipe (CP) and forming a screw thread (CA-R) on the inner surface of the case (CA), the crown pipe (CP) and the case (CA) are mutually screwed. can be combined.

Meanwhile, as shown in FIG. 3 , a case back CB is installed on the other side of the case CA. A movement MOV is provided inside the case back CB. The case back CB is detachably attached to the case CA by means of fixing screws 700 . Conventionally, since a screw thread is formed on the case back (CB) itself and coupled to the case (CA), a separate tool is required to separate the case back (CB), which makes it difficult to disassemble and assemble and the manufacturing cost also increases. there was The present invention solves this problem, and the case back CB is detachably installed from the case CA by means of a plurality of fixing screws 700 . That is, when the fixing screw 700 is separated, the case back CB can be immediately separated from the case CA, and when the fixing screw 700 is inserted, the case back CB can be conveniently fixed to the case CA. can To this end, it is also possible to embed the steel ring 600 in the case back CB and install a fixing screw 700 to the steel ring 600. At this time, an internal screw thread 630 is formed on the inside of the steel ring 600, and an external screw thread 620 is formed on the outside of the steel ring 600. The steel ring 600 is fixed to the case CA by the external screw thread 620. In addition, the screw thread 710 of the fixing screw 700 is screwed with the internal screw thread 630 so that it can be attached and detached more conveniently.

The packing PK includes a first packing 100 and a second packing 200 disposed in the longitudinal direction (horizontal direction in FIG. 1) of the crown pipe CP and spaced apart at a predetermined interval. In addition, the case CA includes a ring-shaped case body CA1 and a contact portion CA2 formed on one side of the case body CA1 and recessed to a specific height. That is, the case body CA1 has a hollow cylinder shape having a specific thickness, and the contact portion CA2 is formed to be recessed at a specific depth on one side (right side of the drawing in FIG. 6) of the case body CA1.

The crown pipe CP includes an insertion portion CP2 inserted into the case body CA1, and a plate-shaped head portion CP1 formed at one side of the insertion portion CP2 and facing the contact portion CA2. ). That is, when the insertion part CP2 is inserted into the case body CA1, the head part CP1 faces the contact part CA2 and is spaced apart from each other at a predetermined interval. The first packing 100 is disposed between the head part CP1 and the contact part CA2.

In addition, an insertion groove CP3 is formed in the insertion part CP2. The insertion groove CP3 is formed in a circumferential direction on an outer surface of the insertion part CP2 and is recessed to a certain depth, and the second packing 200 is inserted into the insertion groove CP3. The first packing 100 and the second packing 200 prevent penetration of moisture while absorbing transmitted vibration.

As shown in FIG. 4 , the first packing 100 may include a first packing body 110 made of an elastic material having a disk shape and an opening 120 formed in the center. The insertion part CP1 is inserted into the opening part 120, and the first packing body 110 adheres to the space between the head part CP1 and the contact part CA2 to prevent water and dust.

As shown in FIG. 5 , the second packing 200 has a disk shape and includes a second packing body 210 made of an elastic material with a central opening 220 formed therein. The insertion part CP1 is inserted into the central opening part 220 . In addition, the second packing body 210 is inserted into the insertion groove CP3 and closely adhered to the inner surface of the case CA to be waterproof and dustproof.

The second packing body 210 may have an arc shape having a constant length in the circumferential direction. Therefore, a portion of the second packing body 210 may have a circumferential opening 220 formed with a predetermined length in the circumferential direction. A concave portion 240 concave in a radial direction is formed on the inner surface of the second packing body 210, and a plurality of such concave portions 240 may be formed in a circumferential direction and spaced apart at regular intervals. The second packing 200 may be used as a stop ring for determining the location of the crown pipe. Of course, it is also possible to improve the waterproof performance by applying silicone coating to the second packing body 210 of the second packing 200.

As shown in FIGS. 1 and 6 to 12 , the packing PK of the present invention may further include a third packing 300 provided between the contact portion CA2 and the first packing 100 . That is, the first packing 100 is mounted in the space between the contact portion CA2 and the head portion CP1, and a third packing 300 is additionally installed between the first packing 100 and the contact portion CA2 to provide waterproofing. Performance and anti-vibration performance can be further improved.

The third packing 300 includes a 31st packing 310, a 32nd packing 320, and a central packing 330 disposed in the longitudinal direction of the crown pipe CP. The 31st packing 310 and the 32nd packing 320 are disposed on both sides of the central packing 330 .

The 31st packing 310 has a disk shape and includes a 31st packing body 311 made of an elastic material in which an opening 311-1 is formed in the center, and the 31st packing body 311 is the central packing ( 330) and the first packing 100. The insertion part CP1 is inserted into the opening part 311-1, and the 31st packing body 311 is disposed between the central packing 330 and the first packing 100 to prevent penetration of moisture. On the other hand, vibration is absorbed.

The 32nd packing body 320 has a disk shape and includes a 32nd packing body 321 made of an elastic material having an opening 321-1 formed in the center, and the 32nd packing body 321 has the contact portion CA2. ) and the central packing 330. The insertion part CP1 is inserted into the opening part 321-1, and the 32nd packing body 321 is disposed between the contact part CA2 and the central packing 330 to prevent penetration of moisture, absorb vibration.

The central packing 330 includes a central packing body 331 made of an elastic material having a disc shape and having an opening 331-1 in the center, and the insertion part ( CP1) is inserted.

The central packing 330 includes contact balls 332 of an elastic material provided in the central packing part body 331, protruding from both sides, and provided in plural numbers in a circumferential direction. That is, the contact balls 332 protrude in directions on both sides of the central packing part body 331 (towards the 31st packing 310 and the 32nd packing 320).

In addition, the 31st packing 310 includes a ball accommodating part 312 which is provided in the direction of the central packing 330 of the 31st packing body 311 and accommodates the contact ball 332 therein. That is, the contact ball 332 made of an elastic material is accommodated in the ball accommodating portion 312 to prevent penetration of moisture, while absorbing ambient vibration to improve anti-vibration performance. The ball accommodating portion 312 has a hemispherical shape but has a hollow shape, and includes a ball accommodating portion body 3121 made of an elastic material in which the contact ball 332 is accommodated, the ball accommodating portion body 3121, and a 31st packing body ( 311) includes a connecting bar 3122 made of an elastic material connecting between them. Similarly, the 32nd packing 320 further includes a ball receiving portion 322 provided in the direction of the central packing 330 of the 32nd packing body 321 and receiving the contact ball 332, The accommodating portion 322 has a hemispherical shape but has a hollow shape, and includes a ball accommodating unit body 3221 made of an elastic material in which the contact ball 332 is accommodated, the ball accommodating unit body 3221, and the 32nd packing body 321 A connecting bar 3222 made of an elastic material is included.

That is, the ball accommodating part bodies 3121 and 3221 are respectively disposed on both sides of the contact ball 332 to accommodate the contact ball 332, and the ball accommodating part bodies 3121 and 3221 are connected to the connecting bar ( 3122 and 3222), even if vibration is generated in the surroundings, it is primarily absorbed by the elastic material of the ball receiving part body 3121 and 3221 and the connecting bars 3122 and 3222, and the elastic material of the contact ball 332 Vibration is secondarily absorbed by With this configuration, the anti-vibration performance of absorbing vibration and preventing transmission of vibration is improved.

As shown in FIG. 11, the 31st packing body 311 has a plate shape, and the ball receiving part 312 is formed on the side of the 31st packing body 311 toward the central packing 330, and the opposite side That is, the insertion part 313 is formed on the side surface in the direction of the first packing 100 . As shown in FIG. 7 , the insertion part 313 may have a double circular shape having the same center. The insertion part 313 is inserted into the first packing 100 so that the 31st packing body 311 can be more stably maintained. Similarly, the 32nd packing body 321 may also have a plate shape, and an insertion part 323 may be formed on a side surface of the 32nd packing body 321 in the direction of the contact part. As shown in FIG. 10 , the insertion part 323 may have a double circular shape having the same center. As shown in FIG. 6 , the insertion part 323 is inserted into the contact part CA2 so that the 32nd packing 320 can be stably maintained.

As shown in FIGS. 1, 6, and 13 to 17, a fourth packing 400 provided between the inner surface of the case body CA1 and the insertion portion CP2 may be further included. That is, the insertion part CP2 is inserted into the case body CA1, and a gap may occur between the outer surface of the insertion part CP2 and the inner surface of the case body CA1 so that moisture can penetrate and vibration is transmitted. It can be and includes the above-described fourth packing 400.

The fourth packing 400 includes an insertion packing 410 made of an elastic material and a contact roller 420 made of an elastic material. The insertion packing 410 is inserted into the inner surface of the case body CA1 and protrudes inward by a specific thickness. The contact roller 420 is provided in the insertion part CP2 and comes into close contact with the insertion packing 410 . The contact roller 420 and the insertion packing 410 come into close contact with each other to prevent water permeation and to absorb transmitted vibration.

The insertion packing 410 is inserted into the inner surface of the case body CA1, and for this purpose, an insertion groove CA4 is formed on the inner surface of the case body CA1. The depth CA4H of the insertion groove CA4 is smaller than the height 410H of the insertion packing 410 . Due to this configuration, the insertion packing 410 protrudes inward by a specific thickness.

The contact roller 420 is rotatably provided in a mounting groove CP4 formed on an outer surface of the insertion part CP2. The mounting groove CP4 is recessed to a specific depth on the outer surface of the insertion portion CP2 and is formed in the longitudinal direction of the insertion portion CP2, and a contact packing 430 is inserted into the bottom of the mounting groove CP4. do.

The contact roller 420 is rotatably provided in the mounting groove CP4 and includes a contact roller body 421 and a rotation pin 422 for this purpose. The contact roller body 421 comes into contact with the insertion packing 410 and the contact packing 430, respectively. The rotation pin 422 is disposed to cross the mounting groove CP4 and the contact roller body 421 is installed. The pivoting pin 422 is installed on the contact roller body 421 so that the contact roller body 421 is rotatably provided. To this end, an insertion hole 421-1 is formed in the contact roller body 421 and the rotation pin 422 is inserted. The diameter of the insertion hole 421-1 may be slightly larger than that of the rotation pin 422 so that the contact roller body 421 can rotate. As shown in FIGS. 16 and 17 , the contact roller body 421 has a disk shape, and a side surface in contact with the insertion packing 410 and the contact packing 430 is grooved with a specific curvature, and To be in close contact with the contact packing (430).

With this configuration, when the contact part CP2 is inserted into the inner opening of the case body CA1, vibration is absorbed and moisture permeates due to close contact between the insertion packing 410 and the contact packing 430 and the contact roller 420. can prevent

As described above, since the contact roller 420 is in continuous contact with the insertion packing 410 and the contact packing 430, oil such as grease is supplied to the contact roller 420 to prevent abrasion of the contact roller 420. It is also possible. To this end, an oil input hole CP5 for supplying oil to the mounting groove CP4 is formed on one side of the thickness surface of the insertion part CP2 where the mounting groove CP4 is formed, and the contact packing 430 has the An input hole 431 into which oil supplied through the oil input hole CP5 is injected may be formed. With this configuration, it is possible to prevent abrasion by supplying oil to the contact roller body 421 in contact with the contact packing 430 .

Meanwhile, an oil supply unit (not shown) may be provided at one side of the oil input hole CP5 to supply oil to the oil input hole CP5.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, the present invention is not limited thereto, and within the technical spirit of the present invention, by those skilled in the art It is clear that modifications and improvements are possible.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific protection scope of the present invention will be clarified by the appended claims.

100: first packing 110: first packing body
120: opening 200: second packing
210: second packing body 220: circumferential opening
230: central opening 240: recess
300: 3rd packing 310: 31st packing
320: 32nd packing 330: central packing
400: fourth packing 410: insertion packing
420: contact roller 430: contact packing

Claims (9)

A ceramic case (CA), a crown pipe (CP) provided in the case (CA), and an elastic packing (PK) provided between the case (CA) and the crown pipe (CP),
The packing (PK) is disposed in the longitudinal direction of the crown pipe (CP) and includes a first packing 100 and a second packing 200 spaced apart at a predetermined interval,
The case CA includes a ring-shaped case body CA1 and a contact portion CA2 formed on one side of the case body CA1 and recessed to a specific height,
The crown pipe CP has an insertion part CP2 inserted into the case body CA1, and a plate body formed at one side end of the insertion part CP2 and spaced apart from the contact part CA2 by a predetermined distance. It includes a head portion CP1 and an insertion groove CP3 formed in a circumferential direction on an outer surface of the insertion portion CP2 and recessed by a predetermined depth,
The first packing 100 is disposed between the head part CP1 and the contact part CA2,
The second packing (200) is inserted into the insertion groove (CP3) and has a waterproof and dustproof packing that is closely attached to the inner surface of the case body (CA1). According to claim 1,
A screw thread (CP-R) is formed on the outer surface of the crown pipe (CP) and a screw thread (CA-R) is formed on the inner surface of the case (CA) so that the crown pipe (CP) and the case (CA) are mutually screwed together A ceramic wristwatch with a waterproof and dustproof packing. According to claim 1,
A case back (CB) is attached to one side of the case (CA),
The case back (CB) is a ceramic wrist watch having a waterproof and dustproof combination packing detachably provided by a fixing screw 700. According to claim 1,
The first packing 100 has a disk shape and includes a first packing body 110 made of an elastic material with an opening 120 formed in the center,
The second packing 200 is a ceramic wrist watch having a waterproof and dustproof combination packing including a second packing body 210 made of an elastic material having a disk shape and a central opening 220 formed therein. According to claim 1,
A third packing 300 provided between the contact portion CA2 and the first packing 100 is further included,
The third packing 300 includes a 31st packing 310, a 32nd packing 320, and a central packing 330 disposed in the longitudinal direction of the crown pipe CP, and the amount of the central packing 330 The 31st packing 310 and the 32nd packing 320 are disposed on the side,
The 31st packing 310 has a disk shape and includes a 31st packing body 311 made of an elastic material in which an opening 311-1 is formed in the center, and the 31st packing body 311 is the central packing ( 330) and the first packing 100,
The 32nd packing body 320 has a disk shape and includes a 32nd packing body 321 made of an elastic material having an opening 321-1 formed in the center, and the 32nd packing body 321 has the contact portion CA2. ) and the central packing 330,
The central packing 330 is a ceramic wristwatch having a waterproof and dustproof combined packing including a central packing body 331 made of an elastic material having a disk shape and an opening 331-1 formed in the center. According to claim 5,
The central packing 330 further includes contact balls 332 of elastic material provided in the central packing part body 331, protruding on both sides, and provided in plurality in a circumferential direction,
The 31st packing 310 further includes a ball accommodating part 312 provided in the direction of the central packing 330 of the 31st packing body 311 and accommodating the contact ball 332, the ball accommodating part 312 has a hemispherical shape but has a hollow shape so that the contact ball 332 is accommodated in the ball receiving part body 3121 made of elastic material and between the ball receiving part body 3121 and the 31st packing body 311. Including a connection bar 3122 made of an elastic material for connection,
The 32nd packing 320 further includes a ball accommodating part 322 provided in the direction of the central packing 330 of the 32nd packing body 321 and accommodating the contact ball 332, the ball accommodating part 322 has a hemispherical shape but has a hollow shape, so that the contact ball 332 is accommodated in the ball receiving part body 3221 of elastic material, and between the ball receiving part body 3221 and the 32nd packing body 321. A ceramic wristwatch having a waterproof and dustproof packing including a connection bar 3222 made of an elastic material for connection. According to claim 1,
A fourth packing 400 provided between the inner surface of the case body CA1 and the insertion portion CP2 is further included,
The fourth packing 400 includes an elastic insertion packing 410 inserted into the inner surface of the case body CA1 and protruding inward by a specific thickness, and the insertion packing 410 provided in the insertion part CP2. It includes a contact roller 420 made of an elastic material that is in close contact,
The contact roller 420 is rotatably provided in a mounting groove CP4 formed on an outer surface of the insertion part CP2,
The mounting groove (CP4) is recessed to a specific depth on the outer surface of the insertion part (CP2) and has a waterproof and dustproof combined packing formed in the longitudinal direction of the insertion part (CP2). According to claim 7,
A contact packing 430 inserted into the bottom of the mounting groove CP4 is further provided,
The contact roller 420 is disposed to cross the contact roller body 421 contacting the insertion packing 410 and the contact packing 430 and the mounting groove CP4, respectively, and the contact roller body 421 is installed. A ceramic wristwatch having a waterproof and dustproof packing including a rotating pin 422 to be. According to claim 8,
An oil input hole CP5 for supplying oil to the mounting groove CP4 is formed on one side of the thickness surface of the insertion part CP2 where the mounting groove CP4 is formed,
An input hole 431 into which oil supplied through the oil input hole CP5 is input is formed in the contact packing 430,
A ceramic wristwatch having a packing for both waterproof and dustproof use, in which oil is supplied to the contact roller body 421 in contact with the contact packing 430.

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