CN111067213A

CN111067213A - Rotary folding umbrella

Info

Publication number: CN111067213A
Application number: CN202010056308.3A
Authority: CN
Inventors: 郑勇城; 陈荣捷; 赖泽鹏; 范绮轩; 刘娜
Original assignee: Fujian Jicheng Umbrella Co ltd
Current assignee: Fujian Jicheng Umbrella Co ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-04-28

Abstract

The invention discloses a rotary folding umbrella, which comprises an umbrella base, wherein a fixed box cover is fixedly arranged at the top end of the umbrella base, a rotary box cover is rotatably arranged at the top end of the umbrella base, an umbrella handle is connected at the position, corresponding to the inner sides of the fixed box cover and the rotary box cover, of the center of the top end of the umbrella base, a switch is slidably arranged on the outer side of the umbrella handle, and the top end of the switch is connected with a spring. Also be convenient for the quick folding and the storage of umbrella face.

Description

Rotary folding umbrella

Technical Field

The invention relates to the technical field of articles for daily use, in particular to a rotary folding umbrella.

Background

The umbrella is a tool for shading sun or shielding rain and snow, and is generally made of oiled paper, oiled cloth or plastic cloth, and the manufacturing materials of the umbrella generally comprise cloth with extensibility, other materials capable of being used as a framework and a winding wire, and the umbrella is lifted by hands when in use, thereby bringing convenience for people to go out in rainy days and hot days;

however, when the existing folding umbrella in the market is used, the outer side of the folding umbrella is sleeved with the umbrella cover, the umbrella cover can protect the umbrella face, and when the folding umbrella is used, the umbrella cover needs to be stored separately due to the fact that the umbrella cover is taken down, and is easy to lose.

Disclosure of Invention

The technical scheme provided by the invention can effectively solve the problem that the umbrella cover is sleeved outside the folding umbrella in the background technology, and the umbrella cover is easy to lose because the umbrella cover needs to be stored independently after being taken down when in use.

In order to achieve the purpose, the invention provides the following technical scheme: a rotary folding umbrella comprises an umbrella base, wherein a fixed box cover is fixedly arranged at the top end of the umbrella base, a rotary box cover is rotatably arranged at the top end of the umbrella base, an umbrella handle is connected to the top end center of the umbrella base corresponding to the fixed box cover and the inner side position of the rotary box cover, a switch is slidably arranged on the outer side of the umbrella handle, a spring is connected to the top end of the switch, a lower honeycomb plate is slidably arranged on the outer side of the umbrella handle corresponding to the top position of the spring, an upper honeycomb plate is connected to the outer side of the umbrella handle corresponding to the upper position of the lower honeycomb plate, ribs are rotatably arranged on the outer sides of the lower honeycomb plate and the upper honeycomb plate, a top cover is connected to the top end of the umbrella handle, a rotary placing groove is formed in one end of the fixed box cover corresponding to the position of the rotary box cover, semicircular grooves are symmetrically formed in the top end, the one end of rotatory lid is connected with the dog, the outside of umbrella stick corresponds honeycomb board top position department and is connected with the PG umbrella face, the even symmetrical coating in outside of PG umbrella face has reflective coating, the upside cladding of PG umbrella face has hydrophobic umbrella face, the memory crease has all been made to PG umbrella face and hydrophobic umbrella face.

Preferably, the length and the width of the stop block are both greater than those of the inner wall of the rotary placing groove, and the rotary box cover and the fixed box cover are fixed through the semicircular groove and the elastic clamping block.

Preferably, the coating thickness of the hydrophobic umbrella fabric is 0.5mm, and the coating number of the reflective coatings is 6.

Preferably, the outer side of the fixed box cover is connected with an adjusting and carrying mechanism, and the adjusting and carrying mechanism comprises a fixed seat, a transmission seat, a connecting belt, a transmission guide groove, a transmission clamping block, a magnetic adsorption clamping block and a magnetic adsorption clamping seat;

the outer side of the fixed box cover is connected with a fixed seat, a position, corresponding to the upper portion of the fixed seat, of the outer side of the fixed box cover is connected with a conduction seat, a connecting belt is installed on the inner wall of the bottom end of the fixed seat, a conduction groove is formed in one end of the conduction seat, one end of the connecting belt penetrates through the conduction seat and the conduction groove to be connected with a conduction clamping block, one end of the conduction clamping block is fixedly connected with a magnetic adsorption clamping block, and a position, corresponding to the magnetic adsorption clamping block, of one end of the connecting belt is.

Preferably, the magnetic pole of the magnetic adsorption clamping block is opposite to the magnetic pole of the magnetic adsorption clamping seat, and the conduction clamping block and the outer side of the connecting band are fixedly installed through the magnetic adsorption clamping block and the magnetic adsorption clamping seat.

Preferably, the magnetic adsorption clamping block and the magnetic adsorption clamping seat are both L-shaped, and the corners of the transmission guide groove are smooth fillets.

Preferably, the bottom end of the umbrella base is connected with a storage wiping mechanism, and the storage wiping mechanism comprises a threaded connecting base, an internal threaded cover, a connecting block, a return spring and wiping cloth;

the bottom of umbrella seat is connected with threaded connection seat, the outside meshing of threaded connection seat installs the internal thread lid, the bottom of umbrella seat corresponds threaded connection seat inboard position department and installs the connecting block, reset spring is installed to the bottom of connecting block, reset spring's bottom is connected with wipes cloth.

Preferably, the wiping cloth and the internal thread cover are coiled and stored, and a sealing gasket is attached to the joint of the top end of the internal thread cover and the umbrella base.

Preferably, the inner side of the fixed box cover is connected with a moisture-proof and insect-proof mechanism, and the moisture-proof and insect-proof mechanism comprises a storage bin, dispersion holes, a camphor powder bag and an activated carbon bag;

the inboard of fixed lid is connected with the collecting storage, the dispersion hole has evenly been seted up to the one end inner wall of collecting storage, the other end inner wall of collecting storage bonds and has had camphor powder package, the one end of camphor powder package bonds and has the active carbon package.

Preferably, the outer sides of the camphor powder bag and the activated carbon bag are uniformly provided with sunken micropores, and the width of the dispersing holes is 0.5 mm.

Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:

1. through the rotatory standing groove that sets up, rotatory lid, fixed lid, elasticity fixture block and semicircular groove, can promote rotatory lid to rotatory standing groove in, fix between rotatory lid and the fixed lid to can use rotatory lid and fixed lid to hold, when not needing to use, carry out quick convenient rotation to the umbrella and accomodate, do not need the chute boot when using the umbrella, do not need the handle when not using the umbrella, reduce proud surplus when chute boot and handle use.

2. Through PG umbrella face, hydrophobic umbrella face, reflective coating and the memory crease that sets up, the ultraviolet resistance ability and the waterproof performance of umbrella face have been increased, when using night, can use reflective coating to carry out the sign that reflects light to the position of user and umbrella to can carry out quick folding when PG umbrella face and hydrophobic umbrella face are accomodate, ultraviolet resistance ability, waterproof performance and the security performance when having increased this rotatory folding umbrella and using.

3. Through the internal thread lid that sets up, threaded connection seat, reset spring and clean the cloth, can with the separation between internal thread lid and the threaded connection seat, will clean the cloth and take out, use to clean the cloth and clean the clearance to fixed lid and rotatory lid and umbrella stick and umbrella face to can be after using, curl to cleaning the cloth and accomodate, be convenient for clean the clearance after using the umbrella, and clean the cloth and can accomodate the use repeatedly.

4. Through the collecting storage, the camphor powder package, the active carbon package and the dispersion hole that set up, can absorb the vapor that contains between fixed lid and the rotatory lid to PG umbrella face and the hydrophobic umbrella face of accomodating carry out dampproofing and protection of protection against insects, avoid PG umbrella face and hydrophobic umbrella face to accomodate the back, the condition that rib corrosion and worm's ovum breed appear.

5. Through the conduction fixture block that sets up, magnetic adsorption fixture block, magnetic adsorption cassette and connecting band, the magnetic adsorption between accessible magnetic adsorption fixture block and the magnetic adsorption cassette, the length that the adjustment connecting band used to hang the umbrella through the connecting band and place, and accessible connecting band and fixed lid bind the user hand, increase the stability when the user holds fixed lid and rotatory lid.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation structure of the top cover and the rotary placement groove of the present invention;

FIG. 3 is a schematic view of the structure of the adjustment carrying mechanism of the present invention;

FIG. 4 is a schematic view of the structure of the stowing wiper mechanism of the present invention;

FIG. 5 is a schematic structural view of the moisture and insect preventing mechanism of the present invention;

FIG. 6 is a schematic view of the mounting structure of the PG canopy and hydrophobic canopy of the present invention;

FIG. 7 is a schematic view of an installation structure of the semicircular groove and the elastic fixture block of the present invention;

reference numbers in the figures: 1. an umbrella base; 2. fixing the box cover; 3. rotating the box cover; 4. an umbrella handle; 5. a switch; 6. a spring; 7. a lower honeycomb plate; 8. umbrella ribs; 9. a honeycomb board is arranged; 10. a top cover; 11. rotating the placing groove; 12. a semicircular groove; 13. an elastic clamping block; 14. a stopper;

15. adjusting the carrying mechanism; 1501. a fixed seat; 1502. a conductive base; 1503. a connecting belt; 1504. a transmission groove; 1505. conducting the fixture block; 1506. a magnetic adsorption fixture block; 1507. a magnetic adsorption cassette;

16. a storage wiping mechanism; 1601. a threaded connection base; 1602. an internally threaded cap; 1603. connecting blocks; 1604. a return spring; 1605. wiping cloth;

17. a moisture-proof and insect-proof mechanism; 1701. a storage bin; 1702. a dispersion hole; 1703. packaging with camphor powder; 1704. an active carbon bag;

18. a PG umbrella surface; 19. a hydrophobic umbrella fabric; 20. a reflective coating; 21. and (5) memorizing the crease.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in figures 1-7, the invention provides a technical scheme, a rotary folding umbrella comprises an umbrella base 1, a fixed box cover 2 is fixedly arranged at the top end of the umbrella base 1, a rotary box cover 3 is rotatably arranged at the top end of the umbrella base 1, an umbrella handle 4 is connected at the position, corresponding to the fixed box cover 2 and the inner side of the rotary box cover 3, of the center of the top end of the umbrella base 1, a switch 5 is slidably arranged at the outer side of the umbrella handle 4, a spring 6 is connected at the top end of the switch 5, a lower honeycomb plate 7 is slidably arranged at the position, corresponding to the top end of the spring 6, of the outer side of the umbrella handle 4, an upper honeycomb plate 9 is connected at the position, corresponding to the upper part of the lower honeycomb plate 7, umbrella ribs 8 are rotatably arranged at the outer sides of the lower honeycomb plate 7 and the upper honeycomb plate 9, a top cover 10 is connected at the top end of the umbrella handle 4, a, the top of fixed lid 2 corresponds semicircular groove 12 position department through connection and has elasticity fixture block 13, and the one end of rotatory lid 3 is connected with dog 14, and the length and the width of dog 14 all are greater than the length and the width of the 11 inner walls of rotatory standing groove, fix through semicircular groove 12 and elasticity fixture block 13 between rotatory lid 3 and the fixed lid 2, the fixed and adjustment of the position between rotatory lid 3 of being convenient for and the fixed lid 2.

The outside of umbrella stick 4 corresponds last honeycomb panel 9 top position department and is connected with PG umbrella face 18, the even symmetrical coating in the outside of PG umbrella face 18 has reflective coating 20, the upside cladding of PG umbrella face 18 has hydrophobic umbrella face 19, PG umbrella face 18 has all made memory crease 21 with hydrophobic umbrella face 19, the coating thickness of hydrophobic umbrella face 19 is 0.5mm, reflective coating 20's coating quantity is 6, be convenient for through reflective coating 20, when using night, carry out the reflection of light sign to umbrella and user's position.

An adjusting and carrying mechanism 15 is connected to the outer side of the fixed box cover 2, and the adjusting and carrying mechanism 15 comprises a fixed seat 1501, a conduction seat 1502, a connection belt 1503, a conduction groove 1504, a conduction clamping block 1505, a magnetic adsorption clamping block 1506 and a magnetic adsorption clamping block 1507;

the outer side of the fixed box cover 2 is connected with a fixed seat 1501, the outer side of the fixed box cover 2 is connected with a conduction seat 1502 corresponding to the position above the fixed seat 1501, the inner wall of the bottom end of the fixed seat 1501 is provided with a connecting band 1503, one end of the conduction seat 1502 is provided with a conduction groove 1504, one end of the connecting band 1503 penetrates through the conduction seat 1502 and the conduction groove 1504 to be connected with a conduction clamping block 1505, one end of the conduction clamping block 1505 is fixedly connected with a magnetic adsorption clamping block 1506, one end of the connecting band 1503 corresponding to the position of the magnetic adsorption clamping block 1506 is uniformly connected with a magnetic adsorption clamping block 1507, the magnetic pole of the magnetic adsorption clamping block 1506 is opposite to the magnetic pole of the magnetic adsorption clamping block 1507, the conduction clamping block 1505 and the outer side of the connecting band 1503 are fixedly installed through the magnetic adsorption clamping block 1506 and the magnetic adsorption clamping block 1507, the conduction clamping block 1505 and the, the corners of the conduction grooves 1504 are smooth round corners, so that the situation that the conduction grooves 1504 are too sharp to scratch the connection belt 1503 to cause the connection belt 1503 to be damaged can be avoided.

The bottom end of the umbrella seat 1 is connected with a storage wiping mechanism 16, and the storage wiping mechanism 16 comprises a threaded connection seat 1601, an internal threaded cover 1602, a connection block 1603, a return spring 1604 and wiping cloth 1605;

the bottom of umbrella stand 1 is connected with threaded connection seat 1601, threaded connection seat 1601's outside meshing installs interior screw-thread cover 1602, umbrella stand 1's bottom corresponds threaded connection seat 1601 inboard position department and installs connecting block 1603, reset spring 1604 is installed to the bottom of connecting block 1603, reset spring 1604's bottom is connected with wipes cloth 1605, wipe and accomodate for curling between cloth 1605 and the interior screw-thread cover 1602, the top of interior screw-thread cover 1602 and umbrella stand 1 junction are attached to have sealed the pad, the sealing performance of interior screw-thread cover 1602 and umbrella stand 1 junction has been increased.

The inner side of the fixed box cover 2 is connected with a moisture-proof and insect-proof mechanism 17, and the moisture-proof and insect-proof mechanism 17 comprises a storage bin 1701, dispersion holes 1702, a camphor powder bag 1703 and an activated carbon bag 1704;

the inboard of fixed lid 2 is connected with containing storage 1701, the dispersion hole 1702 has evenly been seted up to the one end inner wall of containing storage 1701, the other end inner wall of containing storage 1701 bonds there is camphor powder package 1703, the one end of camphor powder package 1703 bonds there is activated carbon package 1704, the outside of camphor powder package 1703 and activated carbon package 1704 has evenly been seted up sunken micropore, the width of dispersion hole 1702 is 0.5mm, increased the area of contact between camphor powder package 1703 and the activated carbon package 1704 and the air.

The working principle and the using process of the invention are as follows: when the rotary folding umbrella is used, the rotary box cover 3 can be pushed to enter the rotary placing groove 11 at one end of the fixed box cover 2, the rotary box cover 3 and the fixed box cover 2 are fixed through the elastic clamping block 13 and the semicircular groove 12, then the umbrella handle 4 is lengthened, the PG umbrella cover 18 and the hydrophobic umbrella cover 19 can be unfolded for use through the arranged switch 5, the spring 6, the lower honeycomb plate 7 and the umbrella ribs 8, the rotary box cover 3 is rotated out of the rotary placing groove 11, the rotary box cover 3 and the fixed box cover 2 are used for holding, when the umbrella is not used, the PG umbrella cover 18, the hydrophobic umbrella cover 19 and the umbrella handle 4 can be put in between the fixed box cover 2 and the rotary box cover 3, the umbrella can be conveniently and rotatably stored, an umbrella cover is not needed when the umbrella is used, and a handle is not needed when the umbrella is not used;

through the arranged PG umbrella cover 18 and the hydrophobic umbrella cover 19, the ultraviolet resistance of the umbrella cover is improved, the waterproof performance of the umbrella cover can also be improved, and by combining the reflective coating 20 coated on the outer side of the PG umbrella cover 18, when the umbrella is used at night, the reflective coating 20 can be used for reflecting light marks on the positions of a user and an umbrella, and through the memory crease 21 sewn on the PG umbrella cover 18 and the hydrophobic umbrella cover 19, the quick folding and storage can be carried out when the PG umbrella cover 18 and the hydrophobic umbrella cover 19 are stored, so that the ultraviolet resistance, the waterproof performance and the safety performance of the rotary folding umbrella during use are improved;

after the umbrella is used, the internal thread cover 1602 is rotated to separate the internal thread cover 1602 from the threaded connection seat 1601, the wiping cloth 1605 connected to the bottom end of the connection block 1603 through the reset spring 1604 can be taken out, the fixed box cover 2 and the rotating box cover 3 as well as the umbrella handle 4 and the umbrella fabric are wiped and cleaned through the wiping cloth 1605, and the wiping cloth 1605 can be curled and stored after the umbrella is used, so that the wiping and cleaning can be conveniently carried out after the umbrella is used;

PG umbrella fabric 18 and hydrophobic umbrella fabric 19 are folded and stored between the fixed box cover 2 and the rotating box cover 3, the PG umbrella fabric 18 and the hydrophobic umbrella fabric 19 stored between the fixed box cover 2 and the rotating box cover 3 can be protected from moisture and insects by a camphor powder bag 1703 and an activated carbon bag 1704 which are adhered to the inner wall of the storage bin 1701 and the dispersion holes 1702 which are formed in the outer side of the storage bin 1701, and the situations that umbrella ribs 8 are rusted and worm eggs are bred after the PG umbrella fabric 18 and the hydrophobic umbrella fabric 19 are stored are avoided;

when needs carry the umbrella, can pull conduction fixture block 1505, the magnetism adsorption fixture block 1506 that will conduct fixture block 1505 one end moves to one of them magnetism adsorption cassette 1507 department, through the magnetism adsorption between magnetism adsorption fixture block 1506 and the magnetism adsorption cassette 1507, the length that adjustable connecting band 1503 used, thereby accessible connecting band 1503 hangs the umbrella and places, and can be when using, through connecting band 1503 with fixed lid 2, bind the user hand, increase the stability when the user holds fixed lid 2 and rotatory lid 3.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Rotatory folding umbrella, including umbrella stand (1), its characterized in that: the umbrella is characterized in that a fixed box cover (2) is fixedly mounted at the top end of an umbrella base (1), a rotary box cover (3) is rotatably mounted at the top end of the umbrella base (1), a switch (5) is slidably mounted at the outer side of the umbrella base (4) corresponding to the inner side positions of the fixed box cover (2) and the rotary box cover (3), a spring (6) is connected at the top end of the switch (5), a lower honeycomb plate (7) is slidably mounted at the outer side of the umbrella base (4) corresponding to the top position of the spring (6), an upper honeycomb plate (9) is connected at the position above the lower honeycomb plate (7) corresponding to the outer side of the upper honeycomb plate (4), ribs (8) are rotatably mounted at the outer sides of the lower honeycomb plate (7) and the upper honeycomb plate (9), a top cover (10) is connected at the top end of the umbrella base (4), a rotary standing groove (11) is formed at the position of the rotary box cover (3) corresponding to one end of the fixed box cover (2, semicircular groove (12) have been seted up to the top symmetry of rotatory lid (3), the top of fixed lid (2) corresponds semicircular groove (12) position department through connection and has elasticity fixture block (13), the one end of rotatory lid (3) is connected with dog (14), the outside of umbrella stick (4) corresponds honeycomb board (9) top position department and is connected with PG umbrella face (18), the even symmetrical coating in the outside of PG umbrella face (18) has reflective coating (20), the upside cladding of PG umbrella face (18) has hydrophobic umbrella face (19), memory crease (21) have all been made to PG umbrella face (18) and hydrophobic umbrella face (19).

2. The rotary folding umbrella as claimed in claim 1, wherein the length and width of the stopper (14) are both greater than those of the inner wall of the rotary placing groove (11), and the rotary box cover (3) and the fixed box cover (2) are fixed through a semicircular groove (12) and an elastic block (13).

3. The rotating folding umbrella according to claim 1, characterized in that the hydrophobic umbrella fabric (19) is coated with a thickness of 0.5mm and the reflective coating (20) is coated in a number of 6.

4. The rotary folding umbrella according to claim 1, characterized in that the outside of the fixed box cover (2) is connected with an adjusting and carrying mechanism (15), and the adjusting and carrying mechanism (15) comprises a fixed seat (1501), a conductive seat (1502), a connecting band (1503), a conductive groove (1504), a conductive fixture block (1505), a magnetic adsorption fixture block (1506) and a magnetic adsorption fixture block (1507);

the outside of fixed lid (2) is connected with fixing base (1501), the outside of fixed lid (2) corresponds fixing base (1501) top position department and is connected with conduction seat (1502), connecting band (1503) are installed to the bottom inner wall of fixing base (1501), conduction guide slot (1504) have been seted up to the one end of conduction seat (1502), the one end of connecting band (1503) is passed conduction seat (1502) and is connected with conduction fixture block (1505) with conduction slot (1504), the one end fixed connection of conduction fixture block (1505) has magnetic adsorption fixture block (1506), the one end of connecting band (1503) corresponds magnetic adsorption fixture block (1506) position department and evenly is connected with magnetic adsorption cassette (1507).

5. The umbrella according to claim 4, wherein the magnetic pole of the magnetic absorption block (1506) is opposite to the magnetic pole of the magnetic absorption block (1507), and the conduction block (1505) is fixed to the outer side of the connection band (1503) through the magnetic absorption block (1506) and the magnetic absorption block (1507).

6. The rotary folding umbrella of claim 4, wherein the magnetic adsorption block (1506) and the magnetic adsorption block seat (1507) are L-shaped, and the corners of the transmission slot (1504) are smooth and round.

7. The rotary folding umbrella according to claim 1, characterized in that the bottom end of the umbrella base (1) is connected with a receiving wiping mechanism (16), and the receiving wiping mechanism (16) comprises a threaded connecting base (1601), an internal thread cover (1602), a connecting block (1603), a return spring (1604) and a wiping cloth (1605);

the bottom of umbrella seat (1) is connected with threaded connection seat (1601), female screw cap (1602) are installed in the outside meshing of threaded connection seat (1601), connecting block (1603) is installed to the corresponding threaded connection seat (1601) inboard position department in bottom of umbrella seat (1), reset spring (1604) is installed to the bottom of connecting block (1603), the bottom of reset spring (1604) is connected with wipes cloth (1605).

8. The rotary folding umbrella of claim 7, characterized in that the wiping cloth (1605) is coiled with the internal thread cover (1602), and a sealing gasket is attached to the connection between the top end of the internal thread cover (1602) and the umbrella base (1).

9. The rotary folding umbrella as claimed in claim 1, characterized in that the inner side of the fixed box cover (2) is connected with a moisture-proof and insect-proof mechanism (17), the moisture-proof and insect-proof mechanism (17) comprises a storage bin (1701), a dispersion hole (1702), a camphor powder bag (1703) and an activated charcoal bag (1704);

the inner side of the fixed box cover (2) is connected with a containing bin (1701), the inner wall of one end of the containing bin (1701) is uniformly provided with dispersing holes (1702), the inner wall of the other end of the containing bin (1701) is adhered with a camphor powder bag (1703), and one end of the camphor powder bag (1703) is adhered with an activated carbon bag (1704).

10. The rotary folding umbrella as claimed in claim 9, wherein the camphor powder bag (1703) and the activated charcoal bag (1704) are provided with concave micro-holes at the outer side uniformly, and the width of the dispersing holes (1702) is 0.5 mm.