CN104783562A - Driving device and electric chair - Google Patents
Driving device and electric chair Download PDFInfo
- Publication number
- CN104783562A CN104783562A CN201510158553.4A CN201510158553A CN104783562A CN 104783562 A CN104783562 A CN 104783562A CN 201510158553 A CN201510158553 A CN 201510158553A CN 104783562 A CN104783562 A CN 104783562A
- Authority
- CN
- China
- Prior art keywords
- bar
- auxiliary driving
- main transmission
- drive unit
- driving bar
- 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.)
- Granted
Links
Landscapes
- Toys (AREA)
- Transmission Devices (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a driving device. The driving device comprises a support, a positive-negative rotating motor is arranged on the support, the motor is provided with a main transmission rod driven by the motor to rotate, a thread is arranged on the main transmission rod, the driving device further comprises an auxiliary transmission rod, the auxiliary transmission rod is provided with a thread capable of being matched with the thread on the main transmission rod, therefore, the auxiliary transmission rod moves back and forth relative to the main transmission rod when the main transmission rod conducts positive and negative rotation, and the auxiliary transmission rod is connected with a driven piece. The invention further discloses an electric chair. The electric chair comprises a supporting frame, a chair seat is arranged on the supporting frame, the driving device is arranged between the chair seat and the supporting frame, and the driving device drives the chair seat to ascend or descend or move in the horizontal direction relative to the supporting frame. The driving device is simple in structure and stable in work, and the driving device enables the driven piece to rotate and be capable of moving back and forth simultaneously; the electric chair is simple in structure, and the electric chair enables the chair seat to be capable of ascending or descending or moving in the horizontal direction.
Description
[technical field]
The present invention relates to a kind of drive unit, the invention still further relates to a kind of electrically propelled chair.
[background technology]
Children's chairs has become product indispensable in infant growth process.But traditional children's chairs is general only for taking.Also the rotation children's chairs having manufacturer production to rotate in generally horizontal directions at present, but seat support can only rotate, and function is still more single, can not meet the demand that user is more and more higher.Find through investigation, increasing user's immediate concern is a kind of can be elevated again or the children's chairs of transverse shifting occurs while seat rotating.
Therefore, the present invention arises at the historic moment.
[summary of the invention]
The present invention seeks to overcome the deficiencies in the prior art, provide a kind of structure simple, working stability, make the drive unit that driven member can move around again while rotating.
The present invention also provides a kind of structure simple, the drive unit of working stability, and this device can make auxiliary driving bar move around again while rotation, and the swing element be connected on auxiliary driving bar can be driven to swing back and forth up and down.
The present invention also provides a kind of structure simple, makes the electrically propelled chair that seat support can be elevated again while rotating.
The present invention also provides a kind of structure simple, can make the electrically propelled chair of seat support transverse shifting.
The present invention is achieved by the following technical solutions:
A kind of drive unit, it is characterized in that: comprise support 1, described support 1 is provided with clockwise and anticlockwise motor 2, described motor 2 is provided with and is driven and the main transmission bar 3 of rotation by it, described main transmission bar 3 is provided with screw thread, described drive unit also comprises auxiliary driving bar 4, described auxiliary driving bar 4 be provided with can with the threaded engagement on main transmission bar 3 thus main transmission bar 3 is positive and negative rotate time the relative main transmission bar 3 of auxiliary driving bar 4 is moved around screw thread, described auxiliary driving bar 4 is connected with driven member 5.
Drive unit as above, is characterized in that: described drive unit is also included in the guider led to auxiliary driving bar 4 when auxiliary driving bar 4 moves around.
Drive unit as above, it is characterized in that: described guider comprises the frong guide column 42 and BB1 43 that are located at auxiliary driving bar 4 two ends respectively, described support 1 is provided with for frong guide column 42 and BB1 43 pilot hole 101 and rear pilot hole 102 before interior movement respectively.
Drive unit as above, is characterized in that: described support 1 is provided with guide part 103, and described guide part 103 is provided with the internal thread hole 104 with the threaded engagement on auxiliary driving bar 4.
Drive unit as above, is characterized in that: described main transmission bar 3 is directly directly connected with motor 2.
Drive unit as above, is characterized in that: the output shaft of described motor 2 is provided with driving gear 6, and described main transmission bar 3 is provided with the driven gear 7 engaged with driving gear 6.
Drive unit as above, is characterized in that: described support 1 is provided with the first limiting section 81 withstood on driven gear 7 and the second limiting section 82 withstood on main transmission bar 3.
Drive unit as above, is characterized in that: described motor 2 is connected with worm screw 9, and described main transmission bar 3 is provided with the worm gear 10 coordinated with worm screw 9.
Drive unit as above, it is characterized in that: between described motor 2 and worm screw 9, be provided with double gear, described double gear comprises the master gear 11 be located on motor 2 output shaft, described worm screw 9 is connected with engage with master gear 11 from gear 12.
Drive unit as above, is characterized in that: the described substantially vertical setting of main transmission bar 3, is connected to driven member 5 on auxiliary driving bar 4 along with auxiliary driving bar 4 oscilaltion.
Drive unit as above, is characterized in that: described driven member 5 is for being connected to the toy on auxiliary driving bar 4.
Another kind of drive unit, it is characterized in that: comprise support 1, described support 1 is provided with clockwise and anticlockwise motor 2, described motor 2 is provided with and is driven and the main transmission bar 3 of rotation by it, described main transmission bar 3 is provided with screw thread, described drive unit also comprises auxiliary driving bar 4, described auxiliary driving bar 4 be provided with can with the threaded engagement on main transmission bar 3 thus main transmission bar 3 is positive and negative rotate time the relative main transmission bar 3 of auxiliary driving bar 4 is moved around screw thread, described auxiliary driving bar 4 lower end is connected with energy its swing element 15 swung up and down relatively, be provided with in described support 1 and coordinate with auxiliary driving bar 4 and drive the actuator that swing element 15 swings.Another kind of drive unit as above, it is characterized in that: hinged with auxiliary driving bar 4 in the middle part of described swing element 15, the two ends of described swing element 15 are respectively free end 15a and drive end 15b, described actuator comprise be located at sliding bar in auxiliary driving bar 4 161 and order about that sliding bar about 161 slides order about part 162, described sliding bar 161 is flexibly connected with the drive end 15b of swing element 15.
Another kind of drive unit as above, it is characterized in that: the described part 162 that orders about comprises the sliding shoe 1621 that laterally can slide in auxiliary driving bar 4, described sliding shoe 1621 is provided with the skewed slot 1622 of inclination, the transverse axis 1623 crossing sliding bar 161 is provided with in described skewed slot 1622, also be provided with back-moving spring 1624 between described sliding shoe 1621 and auxiliary driving bar 4, described support 1 be also provided with and trigger when auxiliary driving bar 4 rotates the male and fomale(M&F) 1625 that sliding shoe 1621 laterally slides and then promotion sliding bar about 161 slides.
Another kind of drive unit as above, it is characterized in that: the described part 162 that orders about comprises the hinge bar 1626 hinged with auxiliary driving bar 4, one end of described hinge bar 1626 is connected with the movable upper end of sliding bar 161, and described hinge bar 1626 other end coordinates with the helicla flute 1627 be located on support 1.
As above another kind of drive unit, is characterized in that: described swing element 15 is hinged with the auxiliary driving bar 4 respectively laminar fin of two panels, and the drive end of two panels fin is flexibly connected with sliding bar 161.
A kind of electrically propelled chair, it is characterized in that: comprise bracing frame 100, described bracing frame 100 is provided with seat support 200, the drive unit driving seat support 200 relative support frame 100 to be elevated is provided with between described seat support 200 and bracing frame 100, described drive unit comprises the clockwise and anticlockwise motor 2 be located on bracing frame 100, described motor 2 is provided with and is driven and the main transmission bar 3 of rotation by it, described main transmission bar 3 is provided with screw thread, described drive unit also comprises auxiliary driving bar 4, described auxiliary driving bar 4 be provided with can with the threaded engagement on main transmission bar 3 thus main transmission bar 3 is positive and negative rotate time make the screw thread of auxiliary driving bar 4 relative main transmission bar 3 oscilaltion, described seat support 200 is connected on auxiliary driving bar 4.
Electrically propelled chair as above, is characterized in that: described drive unit is also included in the guider led to auxiliary driving bar 4 when auxiliary driving bar 4 moves around.
Electrically propelled chair as above, it is characterized in that: described guider comprises the frong guide column 42 and BB1 43 that are located at auxiliary driving bar 4 two ends respectively, described bracing frame 100 is provided with for frong guide column 42 and BB1 43 pilot hole 101 and rear pilot hole 102 before interior movement respectively.
Electrically propelled chair as above, is characterized in that: described bracing frame 100 is provided with guide part 103, and described guide part 103 is provided with the internal thread hole 104 with the threaded engagement on auxiliary driving bar 4.
Electrically propelled chair as above, is characterized in that: described main transmission bar 3 is directly directly connected with motor 2.
Electrically propelled chair as above, is characterized in that: described motor 2 is connected with worm screw 9, and described main transmission bar 3 is provided with the worm gear 10 coordinated with worm screw 9.
Electrically propelled chair as above, it is characterized in that: between described motor 2 and worm screw 9, be provided with double gear, described double gear comprises the master gear 11 be located on motor 2 output shaft, described worm screw 9 is connected with engage with master gear 11 from gear 12.
Electrically propelled chair as above, is characterized in that: described master gear 11 or the output shaft of motor 2 are connected with the swing component 13 that also gravitional force can be converted to kinetic energy with its rotation.
Electrically propelled chair as above, is characterized in that: be provided with locking piece 14 between described bracing frame 100 and swing component 13.
Another kind of electrically propelled chair, it is characterized in that: comprise bracing frame 100, described bracing frame 100 is provided with seat support 200, the drive unit driving seat support 200 relative support frame 100 to move left and right is provided with between described seat support 200 and bracing frame 100, described drive unit comprises the clockwise and anticlockwise motor 2 be located on bracing frame 100, described motor 2 is provided with and is driven and the main transmission bar 3 of rotation by it, described main transmission bar 3 is provided with screw thread, described drive unit also comprises the auxiliary driving bar 4 be located on seat support 200, described auxiliary driving bar 4 be provided with can with the threaded engagement on main transmission bar 3 thus main transmission bar 3 is positive and negative rotate time the relative main transmission bar 3 of auxiliary driving bar 4 is moved left and right teeth 17.
Another kind of electrically propelled chair as above, it is characterized in that: described bracing frame 100 comprises the hollow sleeve 10a for the rotation of main transmission bar 3, described auxiliary driving bar 4 comprises the sleeve 4a be enclosed within hollow sleeve 10a, boss 4b is provided with along its axis in described sleeve 4a, described teeth 17 are located on boss 4b, the sidewall of described hollow sleeve 10a is provided with the stopper slot 10c snapped in for boss 4b, the sidewall of described hollow sleeve 10a is also provided with the areole 10d coordinated with teeth 17 for main transmission bar 3 passes.
Another kind of electrically propelled chair as above, is characterized in that: the sidewall of described hollow sleeve 10a is provided with multiple ball 18, and described sleeve 4a inwall is provided with the chute 19 coordinated with ball 18.
Compared with prior art, the present invention has the following advantages:
The clockwise and anticlockwise motor of 1, drive unit of the present invention is connected with and is driven by it and the main transmission bar that rotates, main transmission bar is provided with screw thread, drive unit also comprises auxiliary driving bar, auxiliary driving bar be provided with can with the threaded engagement on main transmission bar thus main transmission bar is positive and negative rotate time the relative main transmission bar of auxiliary driving bar is moved around screw thread, auxiliary driving bar is connected with driven member.During work, motor forward or reverse, thus drive main transmission bar to rotate, because auxiliary driving bar and main transmission bar are threaded engagement, so when main transmission bar rotates, auxiliary driving bar can own rotation, can relatively move around by main transmission bar again, the object moved around again while rotating with the driven member reached on drive auxiliary driving bar, structure is simple, operation principle is simple, and job stability is high.
2, drive unit of the present invention is provided with when it moves around the guider that it leads on auxiliary driving bar, guider comprises the frong guide column and BB1 that are located at auxiliary driving bar two ends respectively, and support is provided with and supplies frong guide column and BB1 respectively at front pilot hole and the rear pilot hole of interior movement.Auxiliary driving bar is when moving around, and frong guide column moves in front pilot hole, and BB1 moves in rear pilot hole, guarantees that auxiliary driving bar moves around along its axis, prevents sideslip.
3, the support of drive unit of the present invention is provided with guide part, and guide part is provided with the internal thread hole with the threaded engagement on auxiliary driving bar.Drive auxiliary driving bar rotate and move around when main transmission bar rotates, and the screw thread of auxiliary driving bar coordinate, so just ensure that auxiliary driving bar moves around along its axis, prevents sideslip with internal thread hole.
4, the auxiliary driving bar lower end of the another kind of drive unit of the present invention is connected with energy its swing element swung up and down relatively, be provided with in support and coordinate with auxiliary driving bar and drive the actuator that swing element swings, when main transmission bar rotates, auxiliary driving bar can own rotation, can relatively move around by main transmission bar again, and not only with auxiliary driving bar, rectilinear motion but also relative auxiliary driving bar swing back and forth back and forth to coordinate with actuator the swing element making to be connected to auxiliary driving bar lower end, structure is simple, job stability is high, and travelling property is strong when using as toy for children, very interesting.
The clockwise and anticlockwise motor of 5, the drive unit of electrically propelled chair of the present invention is connected with and is driven by it and the main transmission bar that rotates, main transmission bar is provided with screw thread, drive unit also comprises auxiliary driving bar, auxiliary driving bar be provided with can with the threaded engagement on main transmission bar thus main transmission bar is positive and negative rotate time the relative main transmission bar of auxiliary driving bar is moved around screw thread, auxiliary driving bar is connected with driven member.During work, motor forward or reverse, thus drive main transmission bar to rotate, because auxiliary driving bar and main transmission bar are threaded engagement, so when main transmission bar rotates, auxiliary driving bar can own rotation, again can main transmission bar oscilaltion relatively, with reach drive the seat support on auxiliary driving bar to rotate on generally horizontal plane while oscilaltion object again, structure is simple, job stability is high, adds the enjoyment of children's ride-on, useful body and mind.
6, the drive unit of the another kind of electrically propelled chair of the present invention comprises the clockwise and anticlockwise motor be located on bracing frame, motor is provided with and is driven and the main transmission bar of rotation by it, main transmission bar is provided with screw thread, drive unit also comprises the auxiliary driving bar be located on seat support, auxiliary driving bar be provided with can with the threaded engagement on main transmission bar thus main transmission bar is positive and negative rotate time the relative main transmission bar of auxiliary driving bar is moved left and right teeth.Auxiliary driving bar moves left and right and just drives seat support to move left and right, thus realizes the transverse shifting of seat support, adds the enjoyment of children's ride-on, useful body and mind, and simple and compact for structure.
[accompanying drawing explanation]
Fig. 1 is the stereogram of drive unit embodiment 1 of the present invention;
Fig. 2 is the exploded view of drive unit embodiment 1 of the present invention;
Fig. 3 is the profile of drive unit embodiment 1 of the present invention;
Fig. 4 is the profile of drive unit embodiment 2 of the present invention;
Fig. 5 is one of schematic diagram of drive unit embodiment 3 of the present invention;
Fig. 6 is the schematic diagram two of drive unit embodiment 3 of the present invention;
Fig. 7 is the schematic diagram three of drive unit embodiment 3 of the present invention;
Fig. 8 is the stereogram of electrically propelled chair of the present invention;
Fig. 9 is the exploded view of electrically propelled chair of the present invention;
Figure 10 is the zoomed-in view at A place in Fig. 9;
Figure 11 is the stereogram of the parts of electrically propelled chair of the present invention;
Figure 12 is the zoomed-in view at B place in Figure 11;
One of profile of Figure 13 electrically propelled chair of the present invention;
Figure 14 is the profile two of electrically propelled chair of the present invention;
Figure 15 is the schematic perspective view of another kind of drive unit embodiment 1;
Figure 16 is the explosive view of another kind of drive unit embodiment 1;
Figure 17 is one of profile of another kind of drive unit embodiment 1;
Figure 18 is the profile two of another kind of drive unit embodiment 1;
Figure 19 is the stereogram of the support of another kind of drive unit embodiment 1;
Figure 20 is the side view of the support of another kind of drive unit embodiment 1;
Figure 21 is the sectional view along C-C line in Figure 20;
Figure 22 is the explosive view of another kind of drive unit embodiment 2;
Figure 23 is one of profile of another kind of drive unit embodiment 2;
Figure 24 is the profile two of another kind of drive unit embodiment 2;
Figure 25 is the stereogram of another kind of electrically propelled chair;
Figure 26 is the explosive view of another kind of electrically propelled chair;
Figure 27 is one of sectional view of another kind of electrically propelled chair;
Figure 28 is the sectional view two of another kind of electrically propelled chair;
Figure 29 is the zoomed-in view at D place in Figure 27;
Figure 30 is the zoomed-in view at E place in Figure 28.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the invention will be further described:
Drive unit embodiment 1 of the present invention:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of drive unit, comprise support 1, described support 1 is provided with clockwise and anticlockwise motor 2, described motor 2 is provided with and is driven and the main transmission bar 3 of rotation by it, described main transmission bar 3 is provided with screw thread, described drive unit also comprises auxiliary driving bar 4, described auxiliary driving bar 4 be provided with can with the threaded engagement on main transmission bar 3 thus main transmission bar 3 is positive and negative rotate time the relative main transmission bar 3 of auxiliary driving bar 4 is moved around screw thread, described auxiliary driving bar 4 is connected with driven member 5.During work, motor 2 forward or reverse, thus drive main transmission bar 3 to rotate, because auxiliary driving bar 4 and main transmission bar 3 are threaded engagement, so when main transmission bar 3 rotates, auxiliary driving bar 4 can own rotation, can relatively move around by main transmission bar 3 again, to reach the object driving the driven member 5 on auxiliary driving bar 4 to move around again while rotating, structure is simple, operation principle is simple, and job stability is high.
Described drive unit is also included in the guider led to auxiliary driving bar 4 when auxiliary driving bar 4 moves around.Described guider comprises the frong guide column 42 and BB1 43 that are located at auxiliary driving bar 4 two ends respectively, and described support 1 is provided with for frong guide column 42 and BB1 43 pilot hole 101 and rear pilot hole 102 before interior movement respectively.Auxiliary driving bar 4 is when moving around, and frong guide column 42 is mobile in front pilot hole 101, and BB1 43 is mobile in rear pilot hole 102, guarantees that auxiliary driving bar 4 moves around along its axis, prevents sideslip.
Described main transmission bar 3 is directly directly connected with motor 2.
The described substantially vertical setting of main transmission bar 3, is connected to driven member 5 on auxiliary driving bar 4 along with auxiliary driving bar 4 oscilaltion.Described driven member 5 is for being connected to the toy on auxiliary driving bar 4.This drive unit is installed on baby' chair or infanette, starter motor 2 works, just can make toy oscilaltion campaign again while rotation, toy a little while from children more and more away from, a little while from children more and more close to, rotating again away from children or in the process of children, increase the enjoyment of children, make it feel joyful.
Drive unit embodiment 2 of the present invention:
As shown in Figure 4, embodiment 2 is with the difference of embodiment 1:
The output shaft of described motor 2 is provided with driving gear 6, and described main transmission bar 3 is provided with the driven gear 7 engaged with driving gear 6.
Described support 1 is provided with the first limiting section 81 withstood on driven gear 7 and the second limiting section 82 withstood on main transmission bar 3.First limiting section 81 and the second limiting section 82 make main transmission bar 3 and driven gear 7 rotate and can not move axially, and ensure that the stability of mechanism.
Drive unit embodiment 3 of the present invention:
As shown in Figures 5 to 7, embodiment 3 is with the difference of embodiment 1:
Described guider comprises the guide part 103 be located on support 1, and described guide part 103 is provided with the internal thread hole 104 with the threaded engagement on auxiliary driving bar 4.Drive auxiliary driving bar 4 rotate and move around when main transmission bar 3 rotates, and the screw thread of auxiliary driving bar 4 coordinate, so just ensure that auxiliary driving bar 4 moves around along its axis, prevents sideslip with internal thread hole 104.
Described motor 2 is connected with worm screw 9, and described main transmission bar 3 is provided with the worm gear 10 coordinated with worm screw 9.Worm screw 9 coordinates with worm gear 10, and the direction of the moving direction of auxiliary driving bar 4 and motor 2 output shaft can be made to present 90 degree.
Be provided with double gear between described motor 2 and worm screw 9, described double gear comprises the master gear 11 be located on motor 2 output shaft, described worm screw 9 is connected with engage with master gear 11 from gear 12.Double gear can realize the deceleration of motor 2.
The another kind of drive unit embodiment 1 of the present invention:
As shown in Figure 15 to 18, a kind of drive unit, comprise support 1, described support 1 is provided with clockwise and anticlockwise motor 2, described motor 2 is provided with and is driven and the main transmission bar 3 of rotation by it, described main transmission bar 3 is provided with screw thread, described drive unit also comprises auxiliary driving bar 4, described auxiliary driving bar 4 be provided with can with the threaded engagement on main transmission bar 3 thus main transmission bar 3 is positive and negative rotate time the relative main transmission bar 3 of auxiliary driving bar 4 is moved around screw thread, described auxiliary driving bar 4 lower end is connected with energy its swing element 15 swung up and down relatively, be provided with in described support 1 and coordinate with auxiliary driving bar 4 and drive the actuator that swing element 15 swings.During work, motor 2 forward or reverse, thus drive main transmission bar 3 to rotate, because auxiliary driving bar 4 and main transmission bar 3 are threaded engagement, so when main transmission bar 3 rotates, auxiliary driving bar 4 can own rotation, can relatively move around by main transmission bar 3 again, and with actuator coordinate the swing element 15 that makes to be connected to auxiliary driving bar 4 lower end not only with auxiliary driving bar 4 back and forth rectilinear motion but also relative auxiliary driving bar 4 swing back and forth, structure is simple, and job stability is high.
As shown in FIG. 15 to 18, hinged with auxiliary driving bar 4 in the middle part of described swing element 15, the two ends of described swing element 15 are respectively free end 15a and drive end 15b, described actuator comprise be located at sliding bar in auxiliary driving bar 4 161 and order about that sliding bar about 161 slides order about part 162, described sliding bar 161 is flexibly connected with the drive end 15b of swing element 15.Auxiliary driving bar 4, in the process of rotating, orders about part 162 and orders about sliding bar 161 and move up and down, thus drives swing element 15 to swing up and down.
As shown in Figure 16 to Figure 21, the described part 162 that orders about comprises the sliding shoe 1621 that laterally can slide in auxiliary driving bar 4, described sliding shoe 1621 is provided with the skewed slot 1622 of inclination, the transverse axis 1623 crossing sliding bar 161 is provided with in described skewed slot 1622, also be provided with back-moving spring 1624 between described sliding shoe 1621 and auxiliary driving bar 4, described support 1 be also provided with and trigger when auxiliary driving bar 4 rotates the male and fomale(M&F) 1625 that sliding shoe 1621 laterally slides and then promotion sliding bar about 161 slides.Support 1 is provided with male and fomale(M&F) 1625, in the process that auxiliary driving bar 4 rotates, sliding shoe 1621 and then rotates and matches with male and fomale(M&F) 1625, when sliding shoe 1621 touches the protruding parts of male and fomale(M&F) 1625 on support 1, sliding shoe 1621 is inner to auxiliary driving bar 4 by top, back-moving spring 1624 by compression, in the process that sliding shoe 1621 slides, the skew wall of the skewed slot 1622 on sliding shoe 1621 just promotes transverse axis 1623, and then promotion sliding bar 161 moves upward, the lower end of sliding bar 161 is flexibly connected with the drive end 15b of swing element 15, and the middle part of swing element 15 and auxiliary driving bar 4 hinged, so when sliding bar 161 moves upward, the drive end 15b of swing element 15 moves upward, swing element 15 rotates relative to auxiliary driving bar 4, the free end 15a of swing element 15 just moves downward, thus complete swing, when auxiliary driving bar 4 is rotated further, during recess bit alignment with male and fomale(M&F) 1625 on support 1 of sliding shoe 1621, back-moving spring 1624 extends, sliding shoe 1621 is reset spring 1624 to extrapolation, the skew wall of the skewed slot 1622 now on sliding shoe 1621 just promotes transverse axis 1623, and then it is downward to promote sliding bar 161, now the drive end 15b of swing element 15 just moves downward, and the free end 15a of swing element 15 just moves upward, in the continuous rotation of auxiliary driving bar 4, sliding shoe 1621 just occurs that transverse direction is repeatedly slided, and then promotion sliding bar 161 pumps, thus realize swinging back and forth up and down of swing element 15.Structural design is very ingenious, and structure is simple.
As shown in FIG. 15 to 18, described swing element 15 is hinged with the auxiliary driving bar 4 respectively laminar fin of two panels, and the drive end of two panels fin is flexibly connected with sliding bar 161.Swing component 15 is designed to laminar fin, just as the wing of small bird, when main transmission bar 3 rotates, auxiliary driving bar 4 had not only rotated but also main transmission bar 3 moves around at axis direction relatively, so the two panels fin be connected on auxiliary driving bar 4 both moved up and down at vertical direction straight line with auxiliary driving bar 4, fin carrys out back rotation around the pin joint that itself and auxiliary driving bar 4 are hinged again, thus realizes swinging up and down.So pat wing just as small bird to the sensation of people, fly high a little while, fly low a little while, very interesting, liking deeply by children when using as toy for children, the enjoyment of increase children, useful body and mind.
The another kind of drive unit embodiment 2 of the present invention:
As shown in Figure 22 to Figure 24, another kind of drive unit embodiment 2 is with the difference of another kind of drive unit embodiment 1:
The described part 162 that orders about comprises the hinge bar 1626 hinged with auxiliary driving bar 4, and one end of described hinge bar 1626 is connected with the movable upper end of sliding bar 161, and described hinge bar 1626 other end coordinates with the helicla flute 1627 be located on support 1.When auxiliary driving bar 4 rotates, just slide in one end of hinge bar 1626 in helicla flute 1627, in the process of sliding, hinge bar 1626 is positioned at one end of helicla flute 1627 with regard to oscilaltion, the other end of hinge bar 1626 then moves in the opposite direction, thus drive sliding bar 161 oscilaltion, and then swing element 15 is driven to realize up and down reciprocatingly swinging.
Electrically propelled chair of the present invention:
As shown in Fig. 8 to Figure 14, a kind of electrically propelled chair, comprise bracing frame 100, described bracing frame 100 is provided with seat support 200, the drive unit driving seat support 200 relative support frame 100 to be elevated is provided with between described seat support 200 and bracing frame 100, described drive unit comprises the clockwise and anticlockwise motor 2 be located on bracing frame 100, described motor 2 is provided with and is driven and the main transmission bar 3 of rotation by it, described main transmission bar 3 is provided with screw thread, described drive unit also comprises auxiliary driving bar 4, described auxiliary driving bar 4 be provided with can with on main transmission bar 3 threaded engagement thus main transmission bar 3 is positive and negative rotate time make the screw thread of auxiliary driving bar 4 relative main transmission bar 3 oscilaltion, described seat support 200 is connected on auxiliary driving bar 4.During work, motor 2 forward or reverse, thus drive main transmission bar 3 to rotate, because auxiliary driving bar 4 and main transmission bar 3 are threaded engagement, so when main transmission bar 3 rotates, auxiliary driving bar 4 can own rotation, can relatively move around by main transmission bar 3 again, to reach the object of seat support 200 oscilaltion again while rotating driven on auxiliary driving bar 4, structure is simple, and operation principle is simple, and job stability is high, add the enjoyment of children's ride-on, useful body and mind.
Described drive unit is also included in the guider led to auxiliary driving bar 4 when auxiliary driving bar 4 moves around.Described guider comprises the guide part 103 be located on bracing frame 100, and described guide part 103 is provided with the internal thread hole 104 with the threaded engagement on auxiliary driving bar 4.
Described guider can also be the frong guide column and the BB1 that are located at auxiliary driving bar 4 two ends respectively, and described bracing frame 100 is provided with and supplies frong guide column and BB1 respectively at front pilot hole and the rear pilot hole of interior movement.
Described motor 2 is connected with worm screw 9, and described main transmission bar 3 is provided with the worm gear 10 coordinated with worm screw 9.Be provided with double gear between described motor 2 and worm screw 9, described double gear comprises the master gear 11 be located on motor 2 output shaft, described worm screw 9 is connected with engage with master gear 11 from gear 12.Certainly, also can not connecting worm 9 on motor 2, but motor 2 is directly connected with main transmission bar 3.
Described master gear 11 is connected with and rotates the swing component 13 that also gravitional force can be converted to kinetic energy with it.Master gear 11 is driven to rotate when motor 2 rotates, thus drive swing component 13 to swing, in the process by the work of drive unit, seat support 200 completes and rises and rotate on generally horizontal plane, when seat support 200 will decline, motor 2 reverses, now put high and be in high-order swing component 13 and just start to lower motion, its gravitional force just changes into kinetic energy, reverses and do work to driving master gear 11, the electric energy that motor 2 consumes can be saved, realize energy-conservation effect.Swing component 13 also can be connected on the output shaft of motor 2.
Locking piece 14 is provided with between described bracing frame 100 and swing component 13.When not needing seat support 200 be elevated or rotate on generally horizontal plane, swing component 13 locks by locking piece 14, thus master gear 11 is locked, at this moment gear 11 just can not rotate, and then ensure to stop action from gear 12, worm screw 9, worm gear 10, main transmission bar 3, auxiliary driving bar 4, guarantee that seat support 200 is located.
The another kind of electrically propelled chair of the present invention:
As shown in Figure 25 to Figure 30, a kind of electrically propelled chair, comprise bracing frame 100, described bracing frame 100 is provided with seat support 200, the drive unit driving seat support 200 relative support frame 100 to move left and right is provided with between described seat support 200 and bracing frame 100, described drive unit comprises the clockwise and anticlockwise motor 2 be located on bracing frame 100, described motor 2 is provided with and is driven and the main transmission bar 3 of rotation by it, described main transmission bar 3 is provided with screw thread, described drive unit also comprises the auxiliary driving bar 4 be located on seat support 200, described auxiliary driving bar 4 be provided with can with the threaded engagement on main transmission bar 3 thus main transmission bar 3 is positive and negative rotate time the relative main transmission bar 3 of auxiliary driving bar 4 is moved left and right teeth 17.Auxiliary driving bar 4 moves left and right and just drives seat support 200 to move left and right, thus realizes the transverse shifting of seat support 200, adds the enjoyment of children's ride-on, useful body and mind, and simple and compact for structure.
Described bracing frame 100 comprises the hollow sleeve 10a for the rotation of main transmission bar 3, described auxiliary driving bar 4 comprises the sleeve 4a be enclosed within hollow sleeve 10a, boss 4b is provided with along its axis in described sleeve 4a, described teeth 17 are located on boss 4b, the sidewall of described hollow sleeve 10a is provided with the stopper slot 10c snapped in for boss 4b, the sidewall of described hollow sleeve 10a is also provided with the areole 10d coordinated with teeth 17 for main transmission bar 3 passes.Boss 4b is stuck in stopper slot 10c, makes seat support 200 keep transverse shifting, and can not occur rotating on hollow sleeve 10a.
The sidewall of described hollow sleeve 10a is provided with multiple ball 18, and described sleeve 4a inwall is provided with the chute 19 coordinated with ball 18.Ball 18 is set between sleeve 4a and hollow sleeve 10a, friction can be reduced, and it is more smooth and easy that the transverse direction of seat support 200 is slided.
Claims (28)
1. a drive unit, it is characterized in that: comprise support (1), described support (1) is provided with clockwise and anticlockwise motor (2), described motor (2) is provided with and is driven and the main transmission bar (3) of rotation by it, described main transmission bar (3) is provided with screw thread, described drive unit also comprises auxiliary driving bar (4), described auxiliary driving bar (4) be provided with can with the threaded engagement on main transmission bar (3) thus main transmission bar (3) is positive and negative rotate time the relative main transmission bar (3) of auxiliary driving bar (4) is moved around screw thread, described auxiliary driving bar (4) is connected with driven member (5).
2. drive unit according to claim 1, is characterized in that: described drive unit is also included in the guider led to auxiliary driving bar (4) when auxiliary driving bar (4) moves around.
3. drive unit according to claim 2, it is characterized in that: described guider comprises the frong guide column (42) and BB1 (43) that are located at auxiliary driving bar (4) two ends respectively, described support (1) is provided with for frong guide column (42) and BB1 (43) pilot hole (101) and rear pilot hole (102) before interior movement respectively.
4. drive unit according to claim 2, it is characterized in that: described support (1) is provided with guide part (103), described guide part (103) is provided with the internal thread hole (104) with the threaded engagement on auxiliary driving bar (4).
5. drive unit according to claim 1, is characterized in that: described main transmission bar (3) is directly directly connected with motor (2).
6. drive unit according to claim 1, it is characterized in that: the output shaft of described motor (2) is provided with driving gear (6), described main transmission bar (3) is provided with the driven gear (7) engaged with driving gear (6).
7. drive unit according to claim 6, is characterized in that: described support (1) is provided with the first limiting section (81) withstood on driven gear (7) and the second limiting section (82) withstood on main transmission bar (3).
8. drive unit according to claim 1, it is characterized in that: described motor (2) is connected with worm screw (9), described main transmission bar (3) is provided with the worm gear (10) coordinated with worm screw (9).
9. drive unit according to claim 8, it is characterized in that: between described motor (2) and worm screw (9), be provided with double gear, described double gear comprises the master gear (11) be located on motor (2) output shaft, described worm screw (9) is connected with engage with master gear (11) from gear (12).
10. drive unit according to claim 1, it is characterized in that: described main transmission bar (3) substantially vertical setting, be connected to driven member (5) on auxiliary driving bar (4) along with auxiliary driving bar (4) oscilaltion.
11. drive units according to claim 10, is characterized in that: described driven member (5) is for being connected to the toy on auxiliary driving bar (4).
12. 1 kinds of drive units, it is characterized in that: comprise support (1), described support (1) is provided with clockwise and anticlockwise motor (2), described motor (2) is provided with and is driven and the main transmission bar (3) of rotation by it, described main transmission bar (3) is provided with screw thread, described drive unit also comprises auxiliary driving bar (4), described auxiliary driving bar (4) be provided with can with the threaded engagement on main transmission bar (3) thus main transmission bar (3) is positive and negative rotate time the relative main transmission bar (3) of auxiliary driving bar (4) is moved around screw thread, described auxiliary driving bar (4) lower end is connected with energy its swing element swung up and down (15) relatively, be provided with in described support (1) and coordinate with auxiliary driving bar (4) and drive the actuator that swing element (15) swings.
13. drive units according to claim 12, it is characterized in that: described swing element (15) middle part is hinged with auxiliary driving bar (4), the two ends of described swing element (15) are respectively free end (15a) and drive end (15b), what described actuator comprised the sliding bar (161) that is located in auxiliary driving bar (4) and ordered about that sliding bar (161) slides up and down orders about part (162), and described sliding bar (161) is flexibly connected with the drive end (15b) of swing element (15).
14. drive units according to claim 13, it is characterized in that: the described part (162) that orders about comprises the sliding shoe (1621) that laterally can slide in auxiliary driving bar (4), described sliding shoe (1621) is provided with the skewed slot (1622) of inclination, the transverse axis (1623) crossing sliding bar (161) is provided with in described skewed slot (1622), back-moving spring (1624) is also provided with between described sliding shoe (1621) and auxiliary driving bar (4), described support (1) is also provided with and triggers when auxiliary driving bar (4) rotates the male and fomale(M&F) (1625) that sliding shoe (1621) laterally slides and then promotion sliding bar (161) is slided up and down.
15. drive units according to claim 13, it is characterized in that: the described part (162) that orders about comprises the hinge bar (1626) hinged with auxiliary driving bar (4), one end of described hinge bar (1626) is connected with the movable upper end of sliding bar (161), and described hinge bar (1626) other end coordinates with the helicla flute (1627) be located on support (1).
16. drive units according to claim 13, it is characterized in that: described swing element (15) is hinged with auxiliary driving bar (4) the respectively laminar fin of two panels, and the drive end of two panels fin is flexibly connected with sliding bar (161).
17. 1 kinds of electrically propelled chairs, it is characterized in that: comprise bracing frame (100), described bracing frame (100) is provided with seat support (200), the drive unit driving seat support (200) relative support frame (100) to be elevated is provided with between described seat support (200) and bracing frame (100), described drive unit comprises the clockwise and anticlockwise motor (2) be located on bracing frame (100), described motor (2) is provided with and is driven and the main transmission bar (3) of rotation by it, described main transmission bar (3) is provided with screw thread, described drive unit also comprises auxiliary driving bar (4), described auxiliary driving bar (4) be provided with can with the threaded engagement on main transmission bar (3) thus main transmission bar (3) is positive and negative rotate time make the screw thread of auxiliary driving bar (4) relative main transmission bar (3) oscilaltion, described seat support (200) is connected on auxiliary driving bar (4).
18. electrically propelled chairs according to claim 17, is characterized in that: described drive unit is also included in the guider led to auxiliary driving bar (4) when auxiliary driving bar (4) moves around.
19. electrically propelled chairs according to claim 18, it is characterized in that: described guider comprises the frong guide column (42) and BB1 (43) that are located at auxiliary driving bar (4) two ends respectively, described bracing frame (100) is provided with for frong guide column (42) and BB1 (43) pilot hole (101) and rear pilot hole (102) before interior movement respectively.
20. electrically propelled chairs according to claim 18, it is characterized in that: described bracing frame (100) is provided with guide part (103), described guide part (103) is provided with the internal thread hole (104) with the threaded engagement on auxiliary driving bar (4).
21. electrically propelled chairs according to claim 17, is characterized in that: described main transmission bar (3) is directly directly connected with motor (2).
22. electrically propelled chairs according to claim 17, it is characterized in that: described motor (2) is connected with worm screw (9), described main transmission bar (3) is provided with the worm gear (10) coordinated with worm screw (9).
23. electrically propelled chairs according to claim 22, it is characterized in that: between described motor (2) and worm screw (9), be provided with double gear, described double gear comprises the master gear (11) be located on motor (2) output shaft, described worm screw (9) is connected with engage with master gear (11) from gear (12).
24. electrically propelled chairs according to claim 23, is characterized in that: described master gear (11) or the output shaft of motor (2) are connected with the swing component (13) that also gravitional force can be converted to kinetic energy with its rotation.
25. electrically propelled chairs according to claim 24, is characterized in that: be provided with locking piece (14) between described bracing frame (100) and swing component (13).
26. 1 kinds of electrically propelled chairs, it is characterized in that: comprise bracing frame (100), described bracing frame (100) is provided with seat support (200), the drive unit driving seat support (200) relative support frame (100) to move left and right is provided with between described seat support (200) and bracing frame (100), described drive unit comprises the clockwise and anticlockwise motor (2) be located on bracing frame (100), described motor (2) is provided with and is driven and the main transmission bar (3) of rotation by it, described main transmission bar (3) is provided with screw thread, described drive unit also comprises the auxiliary driving bar (4) be located on seat support (200), described auxiliary driving bar (4) be provided with can with the threaded engagement on main transmission bar (3) thus main transmission bar (3) is positive and negative rotate time the relative main transmission bar (3) of auxiliary driving bar (4) is moved left and right teeth (17).
27. electrically propelled chairs according to claim 26, it is characterized in that: described bracing frame (100) comprises the hollow sleeve (10a) for main transmission bar (3) rotation, described auxiliary driving bar (4) comprises the sleeve (4a) be enclosed within hollow sleeve (10a), boss (4b) is provided with along its axis in described sleeve (4a), described teeth (17) are located on boss (4b), the sidewall of described hollow sleeve (10a) is provided with the stopper slot (10c) snapped in for boss (4b), the sidewall of described hollow sleeve (10a) is also provided with for main transmission bar (3) through and the areole (10d) that coordinates with teeth (17).
28. electrically propelled chairs according to claim 27, it is characterized in that: the sidewall of described hollow sleeve (10a) is provided with multiple ball (18), described sleeve (4a) inwall is provided with the chute (19) coordinated with ball (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158553.4A CN104783562B (en) | 2015-02-10 | 2015-04-03 | A kind of drive device and electrically propelled chair |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094971 | 2015-02-10 | ||
| CN2015100696845 | 2015-02-10 | ||
| CN2015200949717 | 2015-02-10 | ||
| CN201510069684 | 2015-02-10 | ||
| CN201510158553.4A CN104783562B (en) | 2015-02-10 | 2015-04-03 | A kind of drive device and electrically propelled chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104783562A true CN104783562A (en) | 2015-07-22 |
| CN104783562B CN104783562B (en) | 2017-10-03 |
Family
ID=53549100
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510160609.XA Active CN104784940B (en) | 2015-02-10 | 2015-04-03 | Child toy |
| CN201510158553.4A Active CN104783562B (en) | 2015-02-10 | 2015-04-03 | A kind of drive device and electrically propelled chair |
| CN201520202423.1U Withdrawn - After Issue CN204563610U (en) | 2015-02-10 | 2015-04-03 | A kind of toy for children |
| CN201520202422.7U Withdrawn - After Issue CN204561569U (en) | 2015-02-10 | 2015-04-03 | A kind of drive unit and electrically propelled chair |
| CN201520292549.2U Expired - Fee Related CN204619373U (en) | 2015-02-10 | 2015-05-08 | A kind of drive unit |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510160609.XA Active CN104784940B (en) | 2015-02-10 | 2015-04-03 | Child toy |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520202423.1U Withdrawn - After Issue CN204563610U (en) | 2015-02-10 | 2015-04-03 | A kind of toy for children |
| CN201520202422.7U Withdrawn - After Issue CN204561569U (en) | 2015-02-10 | 2015-04-03 | A kind of drive unit and electrically propelled chair |
| CN201520292549.2U Expired - Fee Related CN204619373U (en) | 2015-02-10 | 2015-05-08 | A kind of drive unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN104784940B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104784940B (en) * | 2015-02-10 | 2017-05-10 | 中山市童印儿童用品有限公司 | Child toy |
| CN109841198A (en) * | 2019-02-01 | 2019-06-04 | 长沙乐和乐器有限公司 | A kind of silencing system of intelligence piano |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2607870Y (en) * | 2003-04-14 | 2004-03-31 | 崔雪海 | Electric lifting chair |
| CN2710448Y (en) * | 2004-02-23 | 2005-07-20 | 何炽基 | Electric lifter of chair |
| CN200941934Y (en) * | 2006-08-23 | 2007-09-05 | 姜巍 | Automatic rocking bed |
| CN101496684A (en) * | 2009-03-04 | 2009-08-05 | 郑立春 | Electric elevating gear |
| US20110120243A1 (en) * | 2009-11-24 | 2011-05-26 | Kih-Utveckling Ab | Linear actuator for height adjustable columns |
| CN201880369U (en) * | 2010-10-16 | 2011-06-29 | 中山市童印儿童用品有限公司 | Toy swinging device |
| CN204561569U (en) * | 2015-02-10 | 2015-08-19 | 中山市童印儿童用品有限公司 | A kind of drive unit and electrically propelled chair |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2628113Y (en) * | 2003-07-21 | 2004-07-28 | 朱大中 | Simulating insects toy capable of flapping wings |
| US7264534B2 (en) * | 2004-12-30 | 2007-09-04 | Fertig Stubenfoll Design Group, L.L.C. | Toys with driven characters |
| CN201132066Y (en) * | 2007-12-19 | 2008-10-15 | 甄赐平 | Toy butterfly |
| TWI403348B (en) * | 2010-05-04 | 2013-08-01 | Univ Nat Pingtung Sci & Tech | Imitating plant device |
| CN203154822U (en) * | 2012-07-30 | 2013-08-28 | 王其健 | Mechanical flower |
| CN202909456U (en) * | 2012-11-13 | 2013-05-01 | 张飞 | Strap type swinging toy for children |
-
2015
- 2015-04-03 CN CN201510160609.XA patent/CN104784940B/en active Active
- 2015-04-03 CN CN201510158553.4A patent/CN104783562B/en active Active
- 2015-04-03 CN CN201520202423.1U patent/CN204563610U/en not_active Withdrawn - After Issue
- 2015-04-03 CN CN201520202422.7U patent/CN204561569U/en not_active Withdrawn - After Issue
- 2015-05-08 CN CN201520292549.2U patent/CN204619373U/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2607870Y (en) * | 2003-04-14 | 2004-03-31 | 崔雪海 | Electric lifting chair |
| CN2710448Y (en) * | 2004-02-23 | 2005-07-20 | 何炽基 | Electric lifter of chair |
| CN200941934Y (en) * | 2006-08-23 | 2007-09-05 | 姜巍 | Automatic rocking bed |
| CN101496684A (en) * | 2009-03-04 | 2009-08-05 | 郑立春 | Electric elevating gear |
| US20110120243A1 (en) * | 2009-11-24 | 2011-05-26 | Kih-Utveckling Ab | Linear actuator for height adjustable columns |
| CN201880369U (en) * | 2010-10-16 | 2011-06-29 | 中山市童印儿童用品有限公司 | Toy swinging device |
| CN204561569U (en) * | 2015-02-10 | 2015-08-19 | 中山市童印儿童用品有限公司 | A kind of drive unit and electrically propelled chair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104784940A (en) | 2015-07-22 |
| CN204619373U (en) | 2015-09-09 |
| CN104784940B (en) | 2017-05-10 |
| CN104783562B (en) | 2017-10-03 |
| CN204561569U (en) | 2015-08-19 |
| CN204563610U (en) | 2015-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206220608U (en) | Berth lock | |
| CN204083688U (en) | Display bracket | |
| CN206745955U (en) | A kind of swing that can adjust height | |
| CN205131425U (en) | Biped robot | |
| CN204561569U (en) | A kind of drive unit and electrically propelled chair | |
| CN203623208U (en) | Drive device applied to work of automatic telescopic pen | |
| CN102309397B (en) | Massager with scraping massage function | |
| CN200987762Y (en) | Massage device core extension flat-pushing mechanism | |
| CN204541424U (en) | A kind ofly manually can help and lock the rocking chair shaken | |
| CN203262659U (en) | Lifting bookshelf | |
| CN204712729U (en) | The conversion device of cam profile and driven member displacement curve | |
| CN202191458U (en) | Massager with scraping massaging function | |
| CN204249613U (en) | A kind of executing agency in order to drive pen flexible | |
| CN207697388U (en) | Wheel with variable diameter | |
| CN204908740U (en) | Multi -functional swing | |
| CN103977562B (en) | A kind of ladder puts down the amusement slide that ladder exchanges | |
| CN202031397U (en) | Intelligent electronic lock control device for compact shelving | |
| CN210540185U (en) | Multifunctional bunk bed | |
| CN203388125U (en) | Elevating mechanism and fishing box | |
| CN207571648U (en) | A kind of internet intelligent meeting tablet for facilitating adjusting | |
| CN203935609U (en) | The amusement slide that the flat ladder in one species stage exchanges | |
| CN213540217U (en) | Double-leaf iron art door | |
| CN203759981U (en) | Cutter relieving mechanism of manual gear shaper for teaching | |
| CN211395366U (en) | Landscape single-plank bridge guardrail structure | |
| CN104586312A (en) | Glass cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |