CN2915200Y - Moveable joint connection mechanism capable of assembling toy - Google Patents

Moveable joint connection mechanism capable of assembling toy Download PDF

Info

Publication number
CN2915200Y
CN2915200Y CN 200620059744 CN200620059744U CN2915200Y CN 2915200 Y CN2915200 Y CN 2915200Y CN 200620059744 CN200620059744 CN 200620059744 CN 200620059744 U CN200620059744 U CN 200620059744U CN 2915200 Y CN2915200 Y CN 2915200Y
Authority
CN
China
Prior art keywords
connector
spherical groove
magnetic
opening spherical
convex surface
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
CN 200620059744
Other languages
Chinese (zh)
Inventor
王振锋
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN 200620059744 priority Critical patent/CN2915200Y/en
Application granted granted Critical
Publication of CN2915200Y publication Critical patent/CN2915200Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Toys (AREA)

Abstract

The utility model relates to a joint connection structure for assembling toys, which consists a first connection component, a second connection component. The joint connection structure is characteristic in that: the connection end of the first connection component is provided with a spherical convexity, the connection end of the second connection component is provided with a opening spherical groove, the spherical convexity is located in the opening spherical groove and matching with theopening spherical groove form a functional cooperation. A first magnetic adsorption component is provided on the first connection component, and a second magnetic adsorption component is provided on the second connection component. The first connection component connects with the second connection component thru the magnetic force of the first magnetic adsorption component and second magnetic adsorption described above. The spherical convexity can turn freely inside the hatched spherical groove, as a result the joint connection structure gains the maximal excursion and rotational angle. Users can disassemble and assemble toys with the joint connection structure like playing toy bricks, furthermore the toy can show different gesture.

Description

But the turning joint bindiny mechanism of block toy
Technical field
The utility model relates to a kind of attaching parts of toy, more particularly, but relates to a kind of turning joint bindiny mechanism of block toy.
Background technology
In the toy field, the turning joint of toy, the for example relevant humanoid occasionally turning joint of animal doll of object for appreciation, generally be formed by connecting by universal joint by flexible flexible members such as rubber band, springs, thereby form rotating joint, to reach the flexible connection purpose, because the restriction of the trochanterion of universal joint, the angle that above-mentioned turning joint bindiny mechanism flexible rotates is quite little, for often being competent at than complexity or the high action of difficulty, when rotational angle was too big, turning joint bindiny mechanism will take place to break away from or breakdown.Therefore, relatively more dull by its action of toy that existing turning joint bindiny mechanism constitutes, lack variation, simultaneously, the posture instability of toy can not keep for a long time, thereby has reduced the interest of toy.
" Human body doll " of Chinese patent CN2203623Y bulletin for example, this Human body doll, comprise that head, upper body drive, buttocks, left and right arm and left and right leg, it is characterized in that: head with connect with the middle neck spheroid that is installed with spring between upper body drives, the upper and lower part of neck spheroid is stretched into the epicoele that cavity and upper body drive on the head respectively; Upper body drive with buttocks between connect with the middle waist spheroid that is installed with spring, the upper and lower part of waist spheroid is stretched into the cavity of resorption that upper body drives and the epicoele of buttocks respectively, inner chamber during upper body drives has an extension spring, center through hole and head that the neck spheroid is passed in the upper end of extension spring fix, and center through hole and buttocks that the waist spheroid is passed in the lower end of extension spring fix; The left and right side that upper body drives has left and right shoulder spheroid respectively, a upper arm spring crosses in the central authorities of last arm, the two ends of upper arm spring are separately fixed on shoulder spheroid and the elbow spheroid, the upper end of last arm is takeed on spheroid and is stretched into, the lower end of last arm is stretched into by the elbow spheroid, following arm connects with the forearm spring with the wrist spheroid, and the two ends of forearm spring are separately fixed on wrist spheroid and the following arm, and wrist spheroid and elbow spheroid stretch into down in the arm respectively; Link with the thigh spring between thigh and strand spheroid, the two ends of thigh spring are separately fixed on strand spheroid and the thigh, the thigh spheroid stretches into the epicoele of thigh, the knee spheroid stretches in the cavity of resorption of thigh, the knee spheroid connects with the shank spring with the shank of intermediate hollow, and the shank spring is separately fixed on knee spheroid and the ankle spheroid.
Though this Human body doll adopts the ball impression face to contact in joint component such as the neck of human body, shoulder, elbow, wrist, waist, knee, ankles, and connects mutually by spring, make the utlity model has flexible, can stretch the characteristics that cost is low.But this Human body doll can not be by the random dismounting combination of turning joint, and the displaying of toy dynamically is subjected to the restriction of turning joint, can not represent different attitudes, and its action is simple, and the amplitude of action is little, and action lacks variation.
Summary of the invention
But the purpose of this utility model is to provide a kind of turning joint bindiny mechanism of block toy.
In order to achieve the above object, the technical solution adopted in the utility model is as follows:
But a kind of turning joint bindiny mechanism of block toy, comprise first connector, second connector, it is characterized in that: the link of first connector is the spheroid convex surface, the link of second connector is the opening spherical groove, and the spheroid convex surface is positioned at the opening spherical groove and is complementary with the opening spherical groove and the formation activity cooperates; First connector is provided with the first magnetic adsorption piece, second connector is provided with the second magnetic adsorption piece, and first connector and second connector flexibly connect by the absorption of the magnetic force between the above-mentioned first magnetic adsorption piece of spheroid and the second magnetic adsorption piece.
Because the spheroid convex surface on its link of first connector is positioned at the opening spherical groove on its link of second connector, spheroid convex surface and opening spherical groove are complementary, first magnetic adsorption piece on first connector and the magnetic force between the second magnetic adsorption piece on second connector tightly are adsorbed in the opening spherical groove spheroid convex surface, the spheroid convex surface can rotate in the opening spherical groove arbitrarily angledly, thereby first can access maximum skew and rotational angle between connector and second connector, thereby make between first connector and second connector and be in different angles, present the different states that have between first connector and second connector, make to present different attitudes in the toy.
When the above-mentioned first magnetic adsorption piece was the spheroid convex surface that is made of magnetic material, accordingly, the above-mentioned second magnetic adsorption piece can have following four kinds of constituted modes:
First kind of mode: the above-mentioned second magnetic adsorption piece is the opening spherical groove that is made of magnetic material, and the opposite face polarity of magnetic opening spherical groove and above-mentioned magnetic spheres convex surface is different;
The second way: the above-mentioned second magnetic adsorption piece is by the opening spherical groove that can be constituted by the nonmagnetic body material of magnetic;
The third mode: the above-mentioned second magnetic adsorption piece is provided in a side of on the opening spherical groove or near the magnet on second connector of opening spherical groove, the segment polarity that this magnet is relative with above-mentioned magnetic spheres convex surface is different;
The 4th kind of mode: the above-mentioned second magnetic adsorption piece is provided in a side of on the opening spherical groove or near the piece that is adsorbed on second connector of opening spherical groove, this is adsorbed piece by being constituted by the nonmagnetic body material of magnetic.
When the above-mentioned first magnetic adsorption piece is during by the spheroid convex surface that can be constituted by the nonmagnetic body material of magnetic, accordingly, the above-mentioned second magnetic adsorption piece can have following two kinds of constituted modes:
First kind of mode: the above-mentioned second magnetic adsorption piece is the opening spherical groove that is made of magnetic material;
The second way: the above-mentioned second magnetic adsorption piece is provided in a side of on the opening spherical groove or the magnet on close second connector of opening spherical groove.
When the above-mentioned first magnetic adsorption piece is provided in a side of on the spheroid convex surface or during near the magnet on first connector of spheroid convex surface, accordingly, the above-mentioned second magnetic adsorption piece can have following four kinds of constituted modes:
First kind of mode: the above-mentioned second magnetic adsorption piece is the opening spherical groove that is made of magnetic material, and magnetic opening spherical groove is with above-mentioned different as the relative segment polarity of the magnet of the first magnetic adsorption piece;
The second way: the above-mentioned second magnetic adsorption piece is by the opening spherical groove that can be constituted by the nonmagnetic body material of magnetic;
The third mode: the above-mentioned second magnetic adsorption piece is provided in a side of on the opening spherical groove or near the magnet on second connector of opening spherical groove, this magnet is with above-mentioned different as the relative end polarity of the magnet of the first magnetic adsorption piece;
The 4th kind of mode: the above-mentioned second magnetic adsorption piece is provided in a side of on the opening spherical groove or near the piece that is adsorbed on second connector of opening spherical groove, this is adsorbed piece by being constituted by the nonmagnetic body material of magnetic.
When the above-mentioned first magnetic adsorption piece is provided in a side of on the spheroid convex surface or near the piece that is adsorbed on first connector of spheroid convex surface, this is adsorbed piece by can be constituted by the nonmagnetic body material of magnetic the time, accordingly, the above-mentioned second magnetic adsorption piece can have following two kinds of constituted modes:
First kind of mode: the above-mentioned second magnetic adsorption piece is the opening spherical groove that is made of magnetic material;
The second way: the above-mentioned second magnetic adsorption piece is provided in a side of on the opening spherical groove or the magnet on close second connector of opening spherical groove.
Described spheroid convex surface can be one-body molded with the link of first connector, and in like manner, described opening spherical groove can be one-body molded with the link of second connector.
Described spheroid convex surface also can pass through projection and groove clamping with the link of first connector, and in like manner, described opening spherical groove also can pass through projection and groove clamping with the link of second connector.Like this, the spheroid convex surface can be installed on the link of first connector easily, and the opening spherical groove can be installed on the link of second connector easily.
As optimal way, described spheroid convex surface is the hemisphere convex surface, and the opening spherical groove is the hemisphere groove.
Described can generally be the metal that iron, nickel etc. can be attracted by magnet by the nonmagnetic body material of magnetic.
The utility model can be used for the connection in the joint of various toys, for example:
But a kind of toy robot that contains the turning joint bindiny mechanism of above-mentioned block toy, comprise head, trunk and four limbs, trunk is divided into chest and back and burst portion, but between the top of above-mentioned head and chest and back, between the top of the bottom of chest and back and thigh portion, between the top of the both sides of chest and back and upper arm, between the top of the bottom of thigh portion and thigh, between the top of the bottom of thigh and shank, all can be by the turning joint bindiny mechanism connection of above-mentioned block toy between the top of the bottom of upper arm and underarm.
Adopt after this structure, because the spheroid convex surface on its link of first connector is positioned at the opening spherical groove on its link of second connector, spheroid convex surface and opening spherical groove are complementary, first magnetic adsorption piece on first connector and the magnetic force between the second magnetic adsorption piece on second connector tightly are adsorbed in the opening spherical groove spheroid convex surface, the spheroid convex surface can rotate in the opening spherical groove arbitrarily angledly, thereby first can access maximum skew and rotational angle between connector and second connector, thereby make between first connector and second connector and be in different angles, present the different states that have between first connector and second connector, the toy that adopts this turning joint bindiny mechanism to make, the user can decompose easily as playing building blocks, block toy, and toy can represent different attitudes more visually, the movement range of toy is big, makes that the action of toy is abundant.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the structural representation that the utility model preferred embodiment is applied to the toy machine man-hour;
Fig. 2 is the partial exploded view of Fig. 1.
The specific embodiment
But Fig. 1, Fig. 2 are applied to the structural representation of toy machine man-hour for the turning joint bindiny mechanism of this block toy:
Wherein, toy robot comprises head 1, trunk and four limbs (pin and hand), trunk is divided into chest and back 2 and thigh portion 3, connect by this turning joint bindiny mechanism between the top of head 1 and chest and back 2, connect by this turning joint bindiny mechanism between the top of the bottom of chest and back 2 and thigh portion 3, but the turning joint bindiny mechanism by block toy between the top of the both sides of chest and back 2 and upper arm 4 flexibly connects, connect by this turning joint bindiny mechanism between the top of the bottom of thigh portion 3 and thigh 5, connect by this turning joint bindiny mechanism between the top of the bottom of thigh 5 and shank 6, but the turning joint bindiny mechanism by above-mentioned block toy connects between the top of the bottom of upper arm 4 and underarm 7.
As shown in Figure 1 and Figure 2, its top of the chest and back 2 of toy robot (first connector) is connected with hemisphere convex surface 8, and the head 1 of toy robot (second connector) is one-body molded hemisphere groove 9; The chest and back 2 of toy robot (first connector) its underpart is connected with hemisphere convex surface 8, and its top of the thigh portion 3 of toy robot (second connector) is one-body molded hemisphere groove 9; Its both sides of the chest and back 2 of toy robot (first connector) respectively are connected with hemisphere convex surface 8, and its top of the upper arm 4 of toy robot (second connector) is one-body molded hemisphere groove 9; The thigh portion 3 of toy robot (first connector) its underpart is connected with hemisphere convex surface 8, and its top of the thigh 5 of toy robot (second connector) is one-body molded hemisphere groove 8; The thigh 5 of toy robot (first connector) its underpart is connected with hemisphere convex surface 8, and its top of the shank 6 of toy robot (second connector) is one-body molded hemisphere groove 9; The upper arm 4 of toy robot (first connector) its underpart is connected with hemisphere convex surface 8, and its top of the underarm 7 of toy robot (second connector) is one-body molded hemisphere groove 9.
That is to say that the link that the link of above-mentioned first connector is hemisphere convex surface 8, the second connectors is hemisphere groove 9, hemisphere convex surface 8 is positioned at hemisphere groove 9 and is complementary with hemisphere groove 9; First connector is provided with the first magnetic adsorption piece, second connector is provided with the second magnetic adsorption piece, cooperates with the formation activity of hemisphere groove 9 by hemisphere convex surface 8 between first connector and second connector and the magnetic force absorption of the first magnetic adsorption piece and the second magnetic adsorption piece flexibly connects.
The above-mentioned first magnetic adsorption piece is by the hemisphere convex surface 8 that can be constituted by metal materials such as the iron of magnetic or nickel, the above-mentioned second magnetic adsorption piece is provided in a side of the magnet 10 on the hemisphere groove 9,10 pairs of hemisphere convex surfaces 8 of magnet have the magnetic force suction-operated, thereby hemisphere convex surface 8 tightly is adsorbed in the hemisphere groove 9, thereby hemisphere convex surface 8 can rotate in hemisphere groove 9 arbitrarily angledly, realizes the flexible connection between first connector and second connector.
The installation of hemisphere convex surface 8 for convenience, above-mentioned hemisphere convex surface 8 passes through projection 11 and groove 12 clampings with the link of head 1, chest and back 2, thigh portion 3, thigh 5, upper arm 4 etc.
But the toy robot that the turning joint bindiny mechanism that adopts this block toy makes, because the head 1 and the chest and back 2 of toy robot, chest and back 2 and thigh portion 3, four limbs (pin and hand) but each joint all the turning joint bindiny mechanism by block toy flexibly connect, but the hemisphere convex surface 8 and the hemisphere groove 9 of the turning joint bindiny mechanism of block toy are complementary, and hemisphere convex surface 8 flexibly connects by the magnetic adsorption piece with hemisphere groove 9, the magnetic adsorption piece tightly is adsorbed on hemisphere convex surface 8 in the hemisphere groove 9, hemisphere convex surface 8 can rotate in hemisphere groove 9 arbitrarily angledly, thereby the head 1 of toy robot and chest and back 2, chest and back 2 and thigh portion 3, each joint of four limbs (pin and hand) all can access maximum skew and rotational angle, thereby makes toy robot present different attitudes.
Simultaneously, but the artificial block toy robot of the toy machine that adopts this turning joint bindiny mechanism to make, each joint of the head 1 that toy robot connects by this turning joint bindiny mechanism and chest and back 2, chest and back 2 and burst portion 3, four limbs (pin and hand) all arbitrarily dismounting make up, the user can decompose easily as the object for appreciation building blocks, the block toy robot; Toy robot is crossed each joint of head 1 that this turning joint bindiny mechanism connects and chest and back 2, chest and back 2 and thigh portion 3, four limbs (pin and hand) and can not damaged when rotating significantly, and its form can be relatively stable after rotating, toy robot can keep same action for a long time, thereby make toy robot represent various attitudes more visually, make the action of toy robot and form rich and varied.
The utility model also can be used for the connection in the joint of other toys, and for example connection in the joint of toy animals as long as turning joint of the present utility model bindiny mechanism is adopted in the joint of toy, all drops within the protection domain of the present utility model.

Claims (8)

  1. But 1, a kind of turning joint bindiny mechanism of block toy, comprise first connector, second connector, it is characterized in that: the link of first connector is the spheroid convex surface, the link of second connector is the opening spherical groove, and the spheroid convex surface is positioned at the opening spherical groove and is complementary with the opening spherical groove and the formation activity cooperates; First connector is provided with the first magnetic adsorption piece, and second connector is provided with the second magnetic adsorption piece, and first connector and second connector flexibly connect by the absorption of the magnetic force between the above-mentioned first magnetic adsorption piece of ball and the second magnetic adsorption piece.
  2. But 2, the turning joint bindiny mechanism of block toy as claimed in claim 1 is characterized in that: the described first magnetic adsorption piece is the spheroid convex surface that is made of magnetic material; The described second magnetic adsorption piece, or the opening spherical groove that constitutes by magnetic material, the opposite face polarity of magnetic opening spherical groove and above-mentioned magnetic spheres convex surface is different; Or by the opening spherical groove that can be constituted by the nonmagnetic body material of magnetic; Or being located on the opening spherical groove or the magnet on close second connector of opening spherical groove, the segment polarity that this magnet is relative with above-mentioned magnetic spheres convex surface is different; Or be located on the opening spherical groove or near the piece that is adsorbed on second connector of opening spherical groove, this is adsorbed piece by being constituted by the nonmagnetic body material of magnetic.
  3. But 3, the turning joint bindiny mechanism of block toy as claimed in claim 1 is characterized in that: the described first magnetic adsorption piece is by the spheroid convex surface that can be constituted by the nonmagnetic body material of magnetic; The described second magnetic adsorption piece, or the opening spherical groove that constitutes by magnetic material; Or be located on the opening spherical groove or the magnet on close second connector of opening spherical groove.
  4. But 4, the turning joint bindiny mechanism of block toy as claimed in claim 1 is characterized in that: the described first magnetic adsorption piece is provided in a side of on the spheroid convex surface or the magnet on close first connector of spheroid convex surface; The described second magnetic adsorption piece, or the opening spherical groove that constitutes by magnetic material, magnetic opening spherical groove is with above-mentioned different as the relative segment polarity of the magnet of the first magnetic adsorption piece; Or by the opening spherical groove that can be constituted by the nonmagnetic body material of magnetic; Or being located on the opening spherical groove or the magnet on close second connector of opening spherical groove, this magnet is with above-mentioned different as the relative end polarity of the magnet of the first magnetic adsorption piece; Or be located on the opening spherical groove or near being adsorbed piece on second connector of opening spherical groove, this is adsorbed piece by being constituted by the nonmagnetic body material of magnetic.
  5. But 5, the turning joint bindiny mechanism of block toy as claimed in claim 1, it is characterized in that: the described first magnetic adsorption piece is provided in a side of on the spheroid convex surface or near the piece that is adsorbed on first connector of spheroid convex surface, this is adsorbed piece by being constituted by the nonmagnetic body material of magnetic; The described second magnetic adsorption piece, or the opening spherical groove that constitutes by magnetic material; Or be located on the opening spherical groove or the magnet on close second connector of opening spherical groove.
  6. But 6,, it is characterized in that as the turning joint bindiny mechanism of each described block toy in the claim 1 to 5: the link of the described spheroid convex surface and first connector one-body molded or with the link of first connector by projection and groove clamping; The link of the described opening spherical groove and second connector one-body molded or with the link of second connector by projection and groove clamping.
  7. But 7, the turning joint bindiny mechanism of block toy as claimed in claim 6 is characterized in that: described spheroid convex surface is the hemisphere convex surface, and the opening spherical groove is the hemisphere groove.
  8. But 8, as the turning joint bindiny mechanism of each described block toy in the claim 2 to 5, it is characterized in that: described can be iron or nickel by the nonmagnetic body material of magnetic.
CN 200620059744 2006-06-01 2006-06-01 Moveable joint connection mechanism capable of assembling toy Expired - Fee Related CN2915200Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620059744 CN2915200Y (en) 2006-06-01 2006-06-01 Moveable joint connection mechanism capable of assembling toy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620059744 CN2915200Y (en) 2006-06-01 2006-06-01 Moveable joint connection mechanism capable of assembling toy

Publications (1)

Publication Number Publication Date
CN2915200Y true CN2915200Y (en) 2007-06-27

Family

ID=38186104

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620059744 Expired - Fee Related CN2915200Y (en) 2006-06-01 2006-06-01 Moveable joint connection mechanism capable of assembling toy

Country Status (1)

Country Link
CN (1) CN2915200Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102580319A (en) * 2012-01-12 2012-07-18 范娅萍 Simulation doll
CN107376381A (en) * 2017-08-30 2017-11-24 上海艺模电子科技有限公司 A kind of movable structure of metallic plate assembly toy
CN107456764A (en) * 2017-09-21 2017-12-12 广州天石智能机器人科技有限公司 A kind of passive joint and simulated humanbody doll
CN108568837A (en) * 2017-03-07 2018-09-25 新加坡国立大学 A kind of rope drive moduleization change joint Manipulator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102580319A (en) * 2012-01-12 2012-07-18 范娅萍 Simulation doll
CN102580319B (en) * 2012-01-12 2014-08-06 范娅萍 Simulation doll
CN108568837A (en) * 2017-03-07 2018-09-25 新加坡国立大学 A kind of rope drive moduleization change joint Manipulator
CN107376381A (en) * 2017-08-30 2017-11-24 上海艺模电子科技有限公司 A kind of movable structure of metallic plate assembly toy
CN107376381B (en) * 2017-08-30 2023-05-02 上海艺模电子科技有限公司 Movable structure of metal plate assembled toy
CN107456764A (en) * 2017-09-21 2017-12-12 广州天石智能机器人科技有限公司 A kind of passive joint and simulated humanbody doll

Similar Documents

Publication Publication Date Title
CN201147642Y (en) Deformed structure of deformation bullet toy
US20070281578A1 (en) Toy construction system having a rotatable connector/spinner device
CN2915200Y (en) Moveable joint connection mechanism capable of assembling toy
CN201760094U (en) Ball-shaped multi-joint simulated human body doll
CN201997102U (en) Doll
KR20100085765A (en) Joint module for action figure
CN203861915U (en) Body joint structure of simulated doll
CN209405672U (en) A kind of Deformable toy robot
CN212038988U (en) BJD doll
CN209500772U (en) A kind of elbow joint emulating man-shaped dolls
CN205007566U (en) Toy joint
CN201197886Y (en) Toy doll with movable arthrosis
CN2203623Y (en) Human body doll
CN201375815Y (en) Movable joint structure with large torsion angles
CN209714282U (en) A kind of assembly toy male earner
CN219128268U (en) Novel joint connection structure and doll
CN203043537U (en) Novel robot educational toy
CN208599165U (en) BJD doll toy
CN202460107U (en) Simulation doll joint angle adjusting device
CN215609314U (en) Universal connection assembly and doll capable of changing multiple postures
CN201454071U (en) Movable doll
CN208770840U (en) Plastic cement action figure
CN212651354U (en) Double-hemisphere mutually-buckled spherical joint
CN219423700U (en) Anti-loosening joint structure of doll toy
CN210096908U (en) Toy doll with chest capable of being twisted left and right

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee