CN210316960U - Door leaf hanging device for built-in door - Google Patents

Door leaf hanging device for built-in door Download PDF

Info

Publication number
CN210316960U
CN210316960U CN201920474680.9U CN201920474680U CN210316960U CN 210316960 U CN210316960 U CN 210316960U CN 201920474680 U CN201920474680 U CN 201920474680U CN 210316960 U CN210316960 U CN 210316960U
Authority
CN
China
Prior art keywords
door leaf
door
shaft
plate
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201920474680.9U
Other languages
Chinese (zh)
Inventor
刘春梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Sinotalent Technology Development Co ltd
Original Assignee
Beijing Sinotalent Technology Development Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Sinotalent Technology Development Co ltd filed Critical Beijing Sinotalent Technology Development Co ltd
Priority to CN201920474680.9U priority Critical patent/CN210316960U/en
Application granted granted Critical
Publication of CN210316960U publication Critical patent/CN210316960U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Support Devices For Sliding Doors (AREA)

Abstract

The utility model discloses a door leaf cable suspension device for interior concealed door, including the fixed guide rail that sets up on bearing track roof beam, its characterized in that: the door leaf lifting plate is provided with two fixed wheels capable of moving along the guide rail, two anti-bouncing wheel assemblies arranged on the door leaf lifting plate and located on the same side with the fixed wheels, a toothed belt clamp arranged in the middle of the other side of the door leaf lifting plate and a locking collision bolt arranged at one end above the door leaf lifting plate. The utility model provides a pair of a door leaf cable suspension device for built-in door simple structure, clearance between wheel and the bearing guide rail is prevented jumping in the regulation that simultaneously can be convenient has improved built-in door system's security.

Description

Door leaf hanging device for built-in door
Technical Field
The utility model relates to a transportation vehicles field, concretely relates to a door leaf cable suspension device that is used for interior hidden door of traffic system.
Background
The built-in door structure is widely applied to a traffic system by the characteristics of simple installation, light weight, small space and flexible operation. The existing built-in door system is troublesome in maintenance, the gap between the bearing wheel, the anti-jumping wheel and the bearing guide rail cannot be adjusted, the bearing wheel and the bearing guide rail are abraded due to long-term relative movement, the gap is increased, the door leaf can move and shake, the extrusion prevention function is influenced, potential safety hazards are easily caused, and the development of the door system is limited.
Application number 200920110041.0 discloses a modular concealed door, which comprises a left door leaf, a right door leaf, a driving mechanism, a locking structure and an inner and outer emergency unlocking device, wherein the driving structure comprises a linear driver, a left sliding block, a right sliding block and a left and right connecting plate hanging plates; the locking mechanism comprises a central locking plate, a central locking motor for driving the central locking plate to lift and a locking shaft which is arranged on the driving mechanism and can be clamped by the central locking plate, and the locking mechanism is arranged above the middle point of the linear driver; the inner and outer emergency unlocking device comprises a steel wire rope, an unlocking pull rod and an unlocking cam, wherein the steel wire rope is connected with the unlocking pull rod, the unlocking pull rod is connected with the unlocking cam, and the unlocking cam drives the central locking plate.
Application number 201410819051.7 discloses an anti-bouncing wheel structure, including moving a mullion, it is equipped with the pulley chamber to move a mullion left side, pass through adjusting screw connection between pulley chamber and the sliding door mullion, pulley intracavity portion top is equipped with the movable block, the movable block left and right sides is equipped with the sliding block respectively, be equipped with the slip hole on the sliding block, the sliding block sets up in the slip hole, pulley chamber left side is equipped with down the spring buckle, pulley chamber below is equipped with the pulley, the pulley both sides are equipped with the rubber pad respectively, it is connected with the spring to go up between spring buckle and the lower spring buckle, the rubber pad left and right sides is equipped with the scrubbing piece respectively, the rubber pad below.
The hidden door can cause the clearance change between the anti-jumping wheel and the bearing track due to the self weight, the jolt in the running process and other reasons in the use process, and if the clearance between the anti-jumping wheel and the bearing track can not be adjusted in time, the hidden danger of the use of the hidden door is easily caused.
Disclosure of Invention
The utility model relates to an overcome the problem that the interior concealed door easily appears the operation smoothly among the prior art, prevents that the jump wheel is difficult to be adjusted, provide a door leaf cable suspension device for interior concealed door, simple structure, clearance between the regulation jump wheel that simultaneously can be convenient and the bearing guide rail has improved interior concealed door system's security.
The utility model provides a door leaf cable suspension device for interior concealed door, including the fixed guide rail that sets up on bearing track roof beam, set up the tight pulley that can follow the motion of guide rail extending direction on the guide rail, the door leaf hanger plate of being connected with the tight pulley, set up on the door leaf hanger plate and lie in with the tight pulley and prevent bouncing roller subassembly, adjustment wheel and the gear belt clamp of setting at door leaf hanger plate top middle part and the shutting of setting in door leaf hanger plate top one end and hit the bolt. The toothed belt clamp is connected with a driving system through a toothed belt, and when the door leaf moves to a specific position, the door lock striker is contacted with the locking mechanism to complete the locking of the concealed door.
A door leaf cable suspension device for interior concealed door, including the fixed guide rail that sets up on bearing track roof beam, its characterized in that: the door leaf lifting plate is provided with two fixed wheels capable of moving along the guide rail, two anti-bouncing wheel assemblies arranged on the door leaf lifting plate and located on the same side with the fixed wheels, a toothed belt clamp arranged in the middle of the other side of the door leaf lifting plate and a locking collision bolt arranged at one end above the door leaf lifting plate. The door leaf hanging plate is used for hanging a door leaf; the fixed wheel is arranged in the guide rail and is used for bearing and driving the door leaf hung by the door leaf hanging plate to move along the guide rail in an opening and closing manner; the anti-bouncing wheel component is used for adjusting the gap between the fixed wheel and the upper surface of the guide rail so as to prevent overlarge gap and bounce and vibration in the movement process, and the toothed belt clamp arranged on the other surface of the door leaf hanging plate is used for driving the door leaf hanging plate to move.
Preferably, the anti-bouncing wheel assembly comprises a shaft sleeve fixedly arranged on the door leaf hanging plate and an adjusting shaft arranged in a central hole of the shaft sleeve, wherein the front end of the adjusting shaft is provided with a boss for stopping the shaft sleeve, and the rear end of the adjusting shaft is provided with a locking nut for fixing the adjusting shaft and the shaft sleeve; the front end of a boss of the adjusting shaft is provided with an eccentric shaft which is connected with the front end of the boss into a whole and is eccentrically arranged with the adjusting shaft, and the eccentric shaft is provided with an anti-jumping wheel; the tail end of the adjusting shaft is an adjusting end.
Preferably, the anti-jumping wheel is arranged on the eccentric shaft through a bearing.
Preferably, the anti-jumping wheel) comprises a support arranged outside the bearing and an annular wheel-shaped outer ring made of nylon or plastic materials arranged outside the support; the outer circle surface of the support is provided with an annular groove; and the inner surface of the outer ring is provided with an annular flange corresponding to the annular groove, and the outer ring and the support are formed by casting and pressing.
Preferably, the outer end of the eccentric shaft is provided with an inner baffle ring for stopping the inner ring of the bearing; and an outer baffle ring for stopping the bearing outer ring is arranged on the inner surface of the support.
Preferably, in order to avoid the change of the position of the anti-bouncing wheel caused by the looseness of the locking nut and the adjusting shaft after the gap is adjusted, the boss end surface of the adjusting shaft matched with the end surface of the shaft sleeve is provided with a radial anti-loosening hobbing II; the end face of the shaft sleeve, which is matched with the end face of the boss, is provided with a first radial anti-loosening hobbing, and the first anti-loosening hobbing on the end face of the shaft sleeve and the second anti-loosening hobbing on the end face of the boss are mutually embedded together.
Preferably, the shaft sleeve comprises a main body part in a sleeve shape and a mounting plate in a disc shape arranged at the rear end of the main body part, an annular mounting neck part is arranged behind the mounting plate, and a cavity for accommodating the locking nut is formed from the center of the mounting neck part to the rear surface of the mounting plate.
Preferably, the adjustment end has at least one pair of 180 degree opposed flats.
Preferably, the door leaf hanger plate includes a vertical plate and a horizontal plate perpendicular to each other, the fixed wheel and the anti-bouncing wheel assembly are disposed on one side of the vertical plate, and the horizontal plate is used for fixing the door leaf.
The utility model discloses in the use, when the clearance change between jump prevention wheel and the bearing guide rail need be adjusted, through the rotatory eccentric shaft of instrument centre gripping hexagonal face, the jump prevention wheel has an eccentric action, can adjust the clearance to suitable scope.
The utility model discloses owing to be equipped with adjustable eccentric shaft in preventing the jump wheel subassembly, through setting up the clearance between the regulation that can be convenient at the adjusting device of eccentric shaft rear side jump wheel and the bearing guide rail, improved the security of interior concealed door system.
The utility model discloses further be equipped with locking slot at axle sleeve and eccentric shaft fitting surface and guarantee that the clearance between anti-skip wheel and the bearing guide rail is because the cooperation is inseparable between assurance axle sleeve and the eccentric shaft when reasons such as train normal motion change, further improved the security of built-in door system.
Drawings
FIG. 1 is a perspective view of a door hanging device for a built-in door;
FIG. 2 is a schematic view of a door hanging device for a built-in door with a guide rail removed;
FIG. 3 is a perspective view of an anti-bouncing wheel assembly of a door hanging device for a built-in door;
FIG. 4 is a sectional view of an anti-bouncing wheel assembly of a door hanging device for a built-in door;
FIG. 5 is a front view of a bushing for an anti-bounce wheel assembly of a door hanger for a concealed door;
fig. 6 is a perspective view of a shaft of an anti-jumping wheel assembly used in a door leaf hanging device of a built-in door;
fig. 7 is a front view of a shaft of an anti-bounce wheel assembly for use in a door leaf hanger of a concealed door;
fig. 8 is a perspective view of a door hanger for a built-in door.
Reference numerals: a load-bearing rail beam 100; a toothed belt 200; a guide rail 1; a door leaf hanger plate 2, a vertical plate 21 and a horizontal plate 22; the anti-bouncing wheel assembly 3, the shaft sleeve 31, the main body part 311, the mounting plate 312, the mounting neck 313, the first anti-loosening hobbing 314 and the cavity 315; the shaft 32, the adjusting shaft 321, the eccentric shaft 322, the boss 323, the second anti-loosening hobbing 324 and the adjusting end 325; anti-jump wheel 33, support 331, annular groove 3311, outer ring 332, annular flange 3321; a lock nut 34; a bearing 35; an inner retainer ring 36; an outer retainer ring 37; a fixed wheel 4; a toothed belt clip 5; the striker 6 is locked.
Detailed Description
Example 1
As shown in fig. 1 and 2, the present invention provides a door leaf hanging device for a built-in door, which comprises a guide rail 1 fixedly arranged on a bearing track beam 100, and further comprises a door leaf hanging plate 2, wherein two fixed wheels 4 capable of moving along the guide rail are arranged on the door leaf hanging plate 2, and the fixed wheels 4 are arranged in the guide rail 1 and used for bearing and driving a door leaf hung by the door leaf hanging plate 2 to open and close along the guide rail 1; the two anti-bouncing wheel assemblies 3 are arranged on the door leaf hanging plate 2 and are positioned on the same side with the fixed wheel 4, and the anti-bouncing wheel assemblies 3 are used for adjusting the gap between the fixed wheel 4 and the upper surface of the guide rail 1 so as to prevent the gap from being too large and generate bouncing and vibration in the movement process; and a toothed belt clamp 5 is arranged in the middle of the other side of the door leaf hanging plate 2, and the toothed belt clamp 5 is used for driving the door leaf hanging plate 2 to move. And a locking striker 6 is arranged at one end of the two doors above the door leaf lifting plate 2, which is adjacent to the two doors.
As shown in fig. 8, the door hanger 2 includes a vertical plate 21 and a horizontal plate 22 perpendicular to each other, the fixed wheel 4 and the anti-bounce wheel assembly 3 are fixedly disposed at one side of the vertical plate 21, and the horizontal plate 22 is used for fixing the door.
Referring to fig. 3-7, the anti-bounce wheel assembly 3 comprises a shaft sleeve 31 arranged on the door leaf hanger plate, and an adjusting shaft 321 arranged in the central hole of the shaft sleeve 31, wherein the front end of the adjusting shaft 321 is provided with a boss 323 for stopping the shaft sleeve, and the rear end of the adjusting shaft 321 is provided with a lock nut 34 for fixing the adjusting shaft 321 and the shaft sleeve 31; the front end of the boss 323 of the adjusting shaft 321 is provided with an eccentric shaft 322 which is connected with the front end of the boss into a whole and is eccentrically arranged with the adjusting shaft 321, referring to fig. 7, the adjusting shaft 321, the boss 323 and the eccentric shaft 322 are of an integrated structure to form a shaft 32, and the eccentric shaft 322 is provided with an anti-jumping wheel 33; the tail end of the adjusting shaft 321 is an adjusting end 325. Because the eccentric shaft 322 and the adjusting shaft 321 at the front end have an eccentricity, when the adjusting end 325 at the tail of the adjusting shaft 321 is rotated, the center of the eccentric shaft 322 rotates around the center of the adjusting shaft 321, thereby driving the anti-jump wheel 33 to rotate around the center of the adjusting shaft 321, so that the anti-jump wheel 33 has an offset in the radial direction, i.e., the vertical height direction, and further adjusting the gap between the anti-jump wheel 33 and the upper surface of the guide rail 1.
Referring to fig. 4, specifically, the debounce wheel 33 is provided on the eccentric shaft 322 via a bearing 35. Anti-bounce wheel 33 comprises a seat 331 and an outer ring 332; the support 331 is arranged outside the bearing 35, and the outer ring 332 is annular and is arranged outside the support 331; the outer circle surface of the support 331 is provided with an annular groove 3311, the inner surface of the outer ring 332 is provided with an annular flange 3321 corresponding to the annular groove 3311, the outer ring 332 is made of nylon or plastic material, and the outer ring 332 and the support 331 are molded by casting.
Referring to fig. 4, an inner stopper ring 36 for stopping the inner race of the bearing is provided at the outer end of the eccentric shaft 322; an outer stopper ring 37 for stopping the outer race of the bearing is provided on the inner surface of the holder 331.
Referring to fig. 5, 6 and 7, in order to prevent the adjusted gap from changing, i.e. prevent the lock nut 34 of the adjusting shaft 321 from loosening, a radial anti-loosening hobbing two 324 is arranged on the end surface of the boss 323 of the adjusting shaft matched with the end surface of the shaft sleeve 31; the end face of the shaft sleeve 31 matched with the end face of the boss 323 is provided with a radial first anti-loose hobbing 314, the convex-concave surfaces of the first anti-loose hobbing 314 on the end face of the shaft sleeve and the second anti-loose hobbing 324 on the end face of the boss are mutually meshed (embedded), namely when the gap needs to be adjusted, the locking nut 34 is loosened, the adjusting shaft 321 is pushed forwards to be disengaged from the first anti-loose hobbing 314 on the end face of the shaft sleeve 31, then the adjusting shaft 321 is rotated, the anti-jump wheel 33 is adjusted to a proper position, when the gap requirement between the anti-jump wheel 33 and the guide rail is met, the adjusting shaft 321 is pulled back, the second anti-loose hobbing 324 on the end face of the shaft sleeve 31 is embedded with the first anti-.
Referring to fig. 4 and 5, the sleeve 31 includes a main body 311 in the shape of a sleeve and a mounting plate 312 in the shape of a disk provided at the rear end of the main body, an annular mounting neck 313 is provided behind the mounting plate 312, and a cavity 315 for accommodating the lock nut 34 is formed from the center of the mounting neck 313 to the rear of the mounting plate 312.
Referring to fig. 4, for the convenience of adjustment, the adjustment end 325 at the end of the adjustment shaft has at least one pair of 180-degree opposite flat surfaces, which is a square surface in this embodiment, but of course, two flat surfaces may be provided on opposite sides of the circular shaft, or a hexagonal surface may be provided.
In the use process of the embodiment, when the gap between the anti-bouncing wheel 33 and the bearing guide rail is changed and needs to be adjusted, the eccentric shaft 322 is rotated by the adjusting end 325 with four aspects of tool clamping, and the anti-bouncing wheel 33 has an eccentric action, namely, the gap can be adjusted to a proper range. The toothed belt clip 5 is connected with a driving system through a toothed belt 200, and when the door leaf runs to a specific position, the door lock striker 6 is contacted with a locking mechanism to complete the locking of the concealed door.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that various modifications, changes, and equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides a door leaf cable suspension device for interior concealed door, includes the fixed guide rail that sets up on bearing rail roof beam, its characterized in that: the door leaf lifting plate is characterized by further comprising a door leaf lifting plate (2), two fixed wheels (1) capable of moving along the guide rail are arranged on the door leaf lifting plate (2), two anti-bouncing wheel assemblies (3) which are arranged on the door leaf lifting plate (2) and located on the same side with the fixed wheels (1), a toothed belt clamp (5) arranged in the middle of the other side of the door leaf lifting plate (2) and a locking collision bolt (6) arranged at one end above the door leaf lifting plate (2).
2. The hanging device for a hidden door as claimed in claim 1, wherein: the anti-bouncing wheel assembly (3) comprises a shaft sleeve (31) fixedly arranged on a door leaf hanging plate and an adjusting shaft (321) arranged in a central hole of the shaft sleeve (31), wherein the front end of the adjusting shaft (321) is provided with a boss (323) used for stopping the shaft sleeve, and the rear end of the adjusting shaft (321) is provided with a locking nut (34) used for fixing the adjusting shaft (321) and the shaft sleeve (31); the front end of a boss (323) of the adjusting shaft (321) is provided with an eccentric shaft (322) which is connected with the front end of the boss into a whole and is eccentrically arranged with the adjusting shaft (321), and the eccentric shaft (322) is provided with an anti-skipping wheel (33); the tail end of the adjusting shaft (321) is an adjusting end (325).
3. The hanging device for a hidden door as claimed in claim 2, wherein: the anti-jumping wheel (33) is arranged on the eccentric shaft through a bearing (35).
4. A door hanger according to claim 3 wherein: the anti-jumping wheel (33) comprises a support (331) arranged outside the bearing (35) and an annular wheel-shaped outer ring (332) made of nylon or plastic materials and arranged outside the support (331); an annular groove (3311) is formed in the outer circle surface of the support (331); the inner surface of the outer ring (332) is provided with an annular flange (3321) corresponding to the annular groove (3311), and the outer ring (332) and the support (331) are formed by casting and pressing.
5. The hanging device for a hidden door as claimed in claim 4, wherein: the outer end of the eccentric shaft (322) is provided with an inner blocking ring (36) for blocking the inner ring of the bearing; and an outer retaining ring (37) for retaining the bearing outer ring is arranged on the inner surface of the support (331).
6. A door leaf hanger for an interior concealed door according to any one of claims 2 to 5 wherein: the end face of a boss (323) of the adjusting shaft matched with the end face of the shaft sleeve (31) is provided with a radial anti-loose hobbing II (324); the end face of the shaft sleeve (31) matched with the end face of the boss (323) is provided with a first radial anti-loosening hobbing (314), and the first anti-loosening hobbing (314) on the end face of the shaft sleeve and the second anti-loosening hobbing (324) on the end face of the boss are mutually embedded together.
7. A door leaf hanger for an interior concealed door according to any one of claims 2 to 5 wherein: the shaft sleeve (31) comprises a sleeve-shaped main body part (311) and a disc-shaped mounting plate (312) arranged at the rear end of the main body part, an annular mounting neck part (313) is arranged behind the mounting plate (312), and a cavity (315) used for accommodating the locking nut (34) is formed from the center of the mounting neck part (313) to the rear of the mounting plate (312).
8. The hanging device for a hidden door as claimed in claim 6, wherein: the shaft sleeve (31) comprises a sleeve-shaped main body part (311) and a disc-shaped mounting plate (312) arranged at the rear end of the main body part, an annular mounting neck part (313) is arranged behind the mounting plate (312), and a cavity (315) used for accommodating the locking nut (34) is formed from the center of the mounting neck part (313) to the rear of the mounting plate (312).
9. A door leaf hanger for an interior concealed door according to any one of claims 2 to 5 wherein: the adjustment end (325) has at least one pair of 180 degree opposed flats.
10. A door leaf hanger for a concealed door according to any one of claims 1 to 5, wherein: the door leaf hanging plate (2) comprises a vertical plate (21) and a horizontal plate (22) which are perpendicular to each other, the fixed wheel (1) and the anti-bouncing wheel assembly (3) are arranged on one side of the vertical plate (21), and the horizontal plate (22) is used for fixing the door leaf.
CN201920474680.9U 2019-04-09 2019-04-09 Door leaf hanging device for built-in door Expired - Fee Related CN210316960U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920474680.9U CN210316960U (en) 2019-04-09 2019-04-09 Door leaf hanging device for built-in door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920474680.9U CN210316960U (en) 2019-04-09 2019-04-09 Door leaf hanging device for built-in door

Publications (1)

Publication Number Publication Date
CN210316960U true CN210316960U (en) 2020-04-14

Family

ID=70135706

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920474680.9U Expired - Fee Related CN210316960U (en) 2019-04-09 2019-04-09 Door leaf hanging device for built-in door

Country Status (1)

Country Link
CN (1) CN210316960U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111794625A (en) * 2019-04-09 2020-10-20 北京天乐泰力科技发展有限公司 Double-leaf electric concealed door system for traffic vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111794625A (en) * 2019-04-09 2020-10-20 北京天乐泰力科技发展有限公司 Double-leaf electric concealed door system for traffic vehicles

Similar Documents

Publication Publication Date Title
CN111794625A (en) Double-leaf electric concealed door system for traffic vehicles
JP4174719B2 (en) Side sliding door device for train
CN210316960U (en) Door leaf hanging device for built-in door
CN210316965U (en) Anti-jumping device for built-in door leaf
US5325790A (en) Rollback-preventing apparatus for a rail vehicle
HU209688B (en) Hanger for sliding doors, particularly for sliding doors of elevators, and door track for said hanger
CN107636244A (en) Glass regulator
US20100175327A1 (en) Driver Device for a Sliding Door
CN209875872U (en) Driven wheel assembly with built-in door driving mechanism
CN210636964U (en) Double-leaf electric concealed door system for traffic vehicles
US20130049377A1 (en) Sliding door arrester
WO2015097252A1 (en) Mounting device for a door panel
US11904733B2 (en) Longitudinal adjuster and vehicle seat
CN209833427U (en) Adjustable electric lock ring for supporting back row seat backrest
CN216197427U (en) Ratchet locking mechanism of screw rod driven rail transit door system
CN114103868A (en) Automobile safety belt height adjusting device
CN214929154U (en) Automobile rotary seat capable of being unlocked manually
CN210316984U (en) Driving locking mechanism for built-in door
CN210636965U (en) Be used for interior concealed door leaf driving motor subassembly
CN215436222U (en) Overturning step
CN111232789A (en) Elevator car stop device
CN110528995B (en) Concealed guest room door of electric screw
CN207092793U (en) A kind of light bus sliding door upper pulley system
JP3280948B2 (en) Airtight sliding door device
CN218760936U (en) Eccentric roller adjusting device of bearing driving mechanism

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200414

CF01 Termination of patent right due to non-payment of annual fee