CN113217519B - Dustproof cover-shaped nut - Google Patents
Dustproof cover-shaped nut Download PDFInfo
- Publication number
- CN113217519B CN113217519B CN202110534827.0A CN202110534827A CN113217519B CN 113217519 B CN113217519 B CN 113217519B CN 202110534827 A CN202110534827 A CN 202110534827A CN 113217519 B CN113217519 B CN 113217519B
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- Prior art keywords
- nut
- tightening
- cap
- hole
- threaded hole
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- 239000000428 dust Substances 0.000 claims abstract description 9
- 230000008719 thickening Effects 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- 238000007689 inspection Methods 0.000 abstract description 8
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 6
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 4
- 235000011613 Pinus brutia Nutrition 0.000 description 4
- 241000018646 Pinus brutia Species 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/002—Measures against loss of bolts, nuts or pins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a dustproof cover-shaped nut which comprises a nut part and a cap part, wherein a threaded hole is formed in the nut part, and the dustproof cover-shaped nut is characterized in that a mounting threaded hole is formed in the position, corresponding to the axis of the threaded hole, of the cap part, a tightening rod is arranged in the mounting threaded hole in a matched mode, a tightening part is arranged at the lower end of the tightening rod, a protecting sleeve is arranged on the outer side of the cap body, a sealing edge matched with the end face of the nut part is arranged at the lower end of the protecting sleeve, an elastic rib is arranged between the protecting sleeve and the tightening part, and an operation hole is formed in the upper end of the tightening part. The invention has the advantages that the connecting position of the screw and the nut can be judged by screwing the tightening rod during inspection, thereby facilitating daily inspection and ensuring the connecting service life of the nut and the screw; the protective sleeve protects a boss formed between the cap part and the nut part, so that dust is prevented from being accumulated at the joint of the cap part and the nut part, and the structural strength and the appearance integrity of the cap-shaped nut are ensured; through the connection reliability of thickening portion reinforcing tightening rod, the structural strength of reinforcing cap guarantees that tightening rod's effect is reliable.
Description
Technical Field
The application relates to the technical field of cap nuts, in particular to a dustproof cap nut.
Background
The cap-shaped nut is usually matched with a bolt and a screw to be used for connecting and fastening parts, generally comprises a nut body and a cap connected to the nut body, is suitable for the place needing to cover the tail end of the thread of the bolt, can prevent the bolt from extending out of the nut to cause injury to people or objects, and can also protect the bolt from being damaged by foreign objects.
For example, in chinese patent document, CN2020206197283 issued on 11/17/2020 and entitled a new metal nut, this application discloses a metal nut, which includes a nut body and a cap connected to the nut body, wherein the nut body is movably connected to the cap; the nut cap is movably connected with the nut body through a connecting device and can change the distance between the nut cap and the nut body under the action of external force, and the connecting device comprises an annular bulge arranged on the outer side of the nut body; the connecting device also comprises an annular connecting piece which is matched with the annular bulge and can rotate relative to the annular bulge; the inner wall of the annular connecting piece is provided with internal threads; the outer peripheral surface of the cap is provided with an external thread; the lower end of the cap is abutted against the upper end of the nut body. The cap nut realizes that the bolt is dustproof through the cap, has the protection effect, and the cap nut among the prior art's weak point lies in: nut body and block junction do not have dustproof ability, though the block has protected the screw thread department of nut, the boss can appear in the junction of block and nut body, easy deposition corrosion on the boss, and then can influence the life-span and the aesthetic property of cap nut.
Disclosure of Invention
Based on the defects in the prior art, the dustproof cap-shaped nut improves the anti-loosening capacity of the cap-shaped nut, can conveniently detect and observe whether the cap-shaped nut is loosened or not, and improves the maintenance and replacement efficiency of the cap-shaped nut; the joint of the nut cap and the nut body is provided with the protective cover, so that the service life of the cap-shaped nut is prolonged.
In order to achieve the above object, the present invention adopts the following technical solutions.
The utility model provides a dustproof cover shape nut, includes nut portion and cap portion, is equipped with the screw hole in the nut portion, characterized by, and the position that cap portion corresponds the screw hole axis is equipped with the installation screw, and installation screw fit in is equipped with the tight pole in top, and the tight pole lower extreme in top is equipped with the tight portion in top, and the outside of cap lid body is equipped with the lag, and the lower extreme of lag is equipped with the banding of cooperation nut portion terminal surface, is equipped with the elasticity muscle between lag and the tight portion in top, and the tight portion upper end in top is equipped with the handle hole.
According to the application, the tightening rod is arranged on the thickened part in a threaded connection mode, after the nut is matched with the screw rod, the tightening rod is screwed through an operation hole matching tool, the tightening rod can be tightly pressed against the end face of the screw rod, tightening and looseness prevention are achieved, whether the cover-shaped locking nut is loosened or not can be conveniently detected and observed through the position of the exposed tightening rod in the installation screw hole, the connection position of the screw rod and the nut can be judged through screwing the tightening rod during inspection, daily inspection is facilitated, and the connection service life of the nut and the screw rod is guaranteed; the protection sleeve protects a boss formed between the cap part and the nut part, so that dust is prevented from being accumulated at the joint of the cap part and the nut part, and the structural strength and the appearance integrity of the cap-shaped nut are ensured.
Preferably, the operation hole is a hexagon socket. The tightening rod is tightly pressed through the operation of the inner hexagonal operation hole, the operation is convenient, and the tightening rod can be completely hidden in the cap part, so that the outer end of the cap-shaped locking nut is intact in shape, the tightening rod is conveniently hidden in the cap-shaped locking nut, and the safety is improved.
Preferably, the cap portion is provided with a corresponding thickening table at a lower end of the mounting screw hole, and an end face of the thickening table is a plane. The end face of the thickening table is used as a processing positioning face, and the screw hole can be conveniently installed for processing and forming.
Preferably, the operating hole is internally provided with a vertical groove parallel to the axis of the mounting screw hole, the lower end of the vertical groove is provided with a transverse hole vertical to the axis of the mounting screw hole, and the elastic rib bypasses and is bonded with the vertical groove and the transverse hole. The elastic ribs are bent and attached into the operating holes, so that the connecting performance is good and the structure is firm.
Preferably, the screw thread direction of the mounting screw hole is opposite to the screw thread direction of the screw hole. When receiving the vibration, the direction of motion of tight pole in top and bolt is opposite, also is that both top tightly or the pine takes off simultaneously, and when the pine takes off, the tight pole in top receives the elastic action of elasticity muscle, and the pine takes off more obviously to can make things convenient for personnel to judge whether the pine takes off, in time screw up.
Preferably, the tightening portion is a tightening cam provided on an end surface of the tightening rod. The tight effect in top is strengthened through the tight protruding tooth in top, makes the tight portion in top can play reliable tight locking effect in top to complex nut and screw rod.
Preferably, the cross section of the tightening convex teeth is in the shape of an isosceles triangle. The point portion of the tight protruding tooth in top provides reliable pressing effect, and the packing force is strong, and the both sides of the tight protruding tooth in top provide the support to point portion, guarantee the intensity of the tight protruding tooth in top.
Preferably, the tightening rod comprises a threaded section at the upper end, a smooth section is arranged at the lower end of the threaded section, a convex positioning convex ring is arranged at the lower end of the smooth section, and the tightening part is positioned at the lower end of the positioning convex ring. The location bulge loop can play spacing effect, prevents to push up tight pole from internal breaking away from of cap to can play the effect that increases the tight area in top through the location bulge loop, improve the tight effect in top.
Preferably, the jacking convex teeth are provided with a plurality of linear rows, and the plurality of jacking convex teeth are arranged in a circumferential array around the axis of the jacking rod. Not only can provide stronger compression action, but also can ensure the strength of tightly propping up the tooth rib.
The invention has the following beneficial effects: the jacking rod can be tightly jacked with the end face of the screw rod by screwing the jacking rod, so that jacking and looseness prevention are realized; whether the cap-shaped locking nut is loosened or not can be conveniently detected and observed through the exposed tightening rod, the connection position of the screw and the nut can be judged by tightening the tightening rod during inspection, daily inspection is facilitated, and the connection service life of the nut and the screw is ensured; the protective sleeve protects a boss formed between the cap part and the nut part, so that dust is prevented from being accumulated at the joint of the cap part and the nut part, and the structural strength and the appearance integrity of the cap-shaped nut are ensured; through the connection reliability of thickening portion reinforcing tightening rod, the structural strength of reinforcing cap guarantees that tightening rod's effect is reliable.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a bottom view of the lower end of the knock-out pin of the present invention.
In the figure: a threaded hole 4 of a thickened part 3 of a cap part 2 of a nut part 1 is provided with a threaded hole 5, a tightening part 6, a smooth section 7 of a threaded section 7, a positioning convex ring 9, an operation hole 10, a protecting sleeve 11, a sealing edge 12, an elastic rib 13, a vertical groove 14, a transverse hole 15 and a through hole 16.
Detailed Description
The invention is further illustrated with reference to the figures and the specific embodiments.
In the embodiment of the method, the first step,
as shown in fig. 1 to 2, a dustproof cap nut, including nut portion 1 and cap portion 2, nut portion 1 and cap portion 2 form a whole through the welded mode, be equipped with screw hole 4 in the nut portion 1, characterized by, be equipped with the tightening rod in the cap portion 2, the lower extreme of tightening rod is equipped with tightening portion 6, the tightening rod includes screw thread section 7 of upper end, the lower extreme of screw thread section 7 is equipped with smooth section 8, the lower extreme of smooth section 8 is equipped with protruding location bulge loop 9, location bulge loop 9 can play spacing effect, prevent that the tightening rod from breaking away from the cap is internal, and can play the effect that increases the tight area in top through location bulge loop 9, improve the tight effect in top. The tightening part 6 is positioned at the lower end of the positioning convex ring 9. The cap portion 2 is provided with a thickened portion 3 on its axis, and the thickened portion 3 and the tightening rod are connected by a screw. The thickening part 3 is provided with an installation screw hole 5 penetrating through the cap cover part 2, the tightening rod is in threaded fit with the installation screw hole 5, and the thread turning direction of the installation screw hole 5 is opposite to that of the threaded hole 4. The upper end of the tightening rod is provided with an operation hole 10. The operation hole 10 is a hexagon socket. The outside of cap lid body 2 is equipped with lag 11, and the lower extreme of lag 11 is equipped with the banding 12 of cooperation nut portion 1 terminal surface, and lag 11 adopts rust-resistant plastics material to make of losing. An elastic rib 13 is arranged between the protecting sleeve 11 and the tightening part 6, and the elastic rib 13 is made of rubber materials. The operating hole 10 is internally provided with a vertical groove 14 which is provided with a screw hole axis in parallel, the lower end of the vertical groove 14 is provided with a transverse 15 hole which is vertical to the screw hole 5 axis, and the lower end of the elastic rib 13 bypasses and is adhered with the vertical 14 groove and the transverse hole 15. The upper end of the elastic rib 13 is fixed with the protecting sleeve 11 into a whole in a bonding or melting welding mode. The protecting sleeve is provided with a through hole corresponding to the operating hole, and the upper end of the elastic rib is bonded on the through hole. The lower end face of the thickened part 3 is a plane, and the processing and molding of the screw hole 5 are convenient to install. The tightening part 6 is a tightening convex tooth arranged on the end surface of the tightening rod. The cross section of the jacking convex teeth is in an isosceles triangle shape. The jacking convex teeth are provided with six linear rows, and the six jacking convex teeth are arranged in an array mode around the circumference of the axis of the jacking rod. The tightening convex teeth are positioned in the radial direction of the positioning convex ring 9.
According to the application, the tightening rod is arranged on the thickened part 3 in a threaded connection mode, after the nut is matched with the screw, the tightening rod is screwed up through the inner hexagonal operation hole matching tool, the tightening rod can be tightly pressed against the end face of the screw, tightening and looseness prevention are achieved, whether the cover-shaped locking nut is loosened or not can be conveniently detected and observed through the exposed tightening rod, the connection position of the screw and the nut can be judged through screwing up the tightening rod during inspection, daily inspection is facilitated, and the connection service life of the nut and the screw is guaranteed; through the connection reliability of 3 reinforcing tightening rods of thickening portion, the structural strength of reinforcing cap guarantees that the effect of tightening rod is reliable. The tightening rod is tightly pressed by the operation of the inner hexagonal operation hole 10, the operation is convenient, and the tightening rod can be completely hidden in the cap part 2, so that the outer end of the cap-shaped locking nut is in a good shape, the tightening rod is hidden and used conveniently in the cap-shaped locking nut, and the safety is improved. The tight effect in top is strengthened through the tight protruding tooth in top, makes tight portion 6 in top can play reliable tight locking effect in top to complex nut and screw rod. The point portion of the tight protruding tooth in top provides reliable pressing effect, and the packing force is strong, and the both sides of the tight protruding tooth in top provide the support to point portion, guarantee the intensity of the tight protruding tooth in top. Lag 11 has protected the boss that forms between cap portion and the nut portion to prevent the junction deposition of cap portion and nut portion, lag and cap portion are from setting up, and the elastic reaction through the elasticity muscle compresses tightly, and lag 11 can rotate relatively with cap portion, thereby lag 11 can cooperate the rotation of the tight pole in top, and can accomplish the terminal surface that nut portion was equipped with cap portion one end and sweep the ash, guarantee the structural strength and the outward appearance integrality of cap nut.
Claims (8)
1. A dustproof cover-shaped nut comprises a nut portion and a cap portion, wherein a threaded hole is formed in the nut portion, and the dustproof cover-shaped nut is characterized in that a mounting threaded hole is formed in the position, corresponding to the axis of the threaded hole, of the cap portion, a tightening rod is arranged in the mounting threaded hole in a matched mode, a tightening portion is arranged at the lower end of the tightening rod, a protective sleeve is arranged on the outer side of the cap body, a sealing edge matched with the end face of the nut portion is arranged at the lower end of the protective sleeve, an elastic rib is arranged between the protective sleeve and the tightening portion, an operation hole is formed in the upper end of the tightening portion, a vertical groove parallel to the axis of the mounting threaded hole is formed in the operation hole, a transverse hole perpendicular to the axis of the mounting threaded hole is formed in the lower end of the vertical groove, and the elastic rib bypasses and is bonded with the vertical groove and the transverse hole; the upper end of the elastic rib is fixed with the protecting sleeve into a whole in a bonding or melting welding mode; the shield and cap portions are located separately.
2. The dust cap nut of claim 1, wherein the access hole is a hexagonal socket.
3. The dust cap nut as claimed in claim 1, wherein the cap portion is provided with a corresponding thickening table at a lower end of the mounting screw hole, and an end surface of the thickening table is a flat surface.
4. The dust cap nut of claim 1, wherein the mounting screw hole has a thread direction opposite to a thread direction of the threaded hole.
5. The dust-proof cap nut as claimed in claim 1, wherein the tightening portion is a tightening protrusion provided on an end surface of the tightening rod.
6. The dust cap nut of claim 5 wherein said tightening lobe has an isosceles triangle cross-sectional shape.
7. The dust cap nut as claimed in claim 1 or 5, wherein the tightening rod includes a threaded section at an upper end, a smooth section is provided at a lower end of the threaded section, a positioning collar protruding outward is provided at a lower end of the smooth section, and the tightening portion is provided at a lower end of the positioning collar.
8. The dust cap nut as claimed in claim 5 or 6, wherein said tightening teeth are provided in a plurality of linear rows, and said plurality of tightening teeth are circumferentially arrayed around the axis of the tightening rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534827.0A CN113217519B (en) | 2021-05-17 | 2021-05-17 | Dustproof cover-shaped nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534827.0A CN113217519B (en) | 2021-05-17 | 2021-05-17 | Dustproof cover-shaped nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113217519A CN113217519A (en) | 2021-08-06 |
| CN113217519B true CN113217519B (en) | 2022-08-26 |
Family
ID=77092512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110534827.0A Active CN113217519B (en) | 2021-05-17 | 2021-05-17 | Dustproof cover-shaped nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113217519B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110124597A (en) * | 2010-05-11 | 2011-11-17 | 주식회사 풍강 | Wheel nut for automobile with protecting cap |
| CN210240274U (en) * | 2019-04-25 | 2020-04-03 | 泸州精通流体液压机械有限公司 | Anti-loosening nut for hydraulic system |
| CN210318115U (en) * | 2019-05-28 | 2020-04-14 | 嘉兴远信五金科技股份有限公司 | Anti-loosening cap type nut |
| CN210715513U (en) * | 2019-09-18 | 2020-06-09 | 芜湖兆合汽车零部件科技有限公司 | Novel cap-shaped nut |
| CN211951143U (en) * | 2020-04-22 | 2020-11-17 | 浙江先创汽车零部件有限公司 | Metal nut |
| CN213206281U (en) * | 2020-08-25 | 2021-05-14 | 博峰汽配科技(芜湖)有限公司 | Dustproof nut and nut dustproof cap |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2365091B (en) * | 2000-07-21 | 2003-10-22 | Wheelsure Ltd | Improved wheel nut assembly |
| JP7067390B2 (en) * | 2018-09-26 | 2022-05-16 | 住友電装株式会社 | Manufacturing method of insert molded products |
-
2021
- 2021-05-17 CN CN202110534827.0A patent/CN113217519B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110124597A (en) * | 2010-05-11 | 2011-11-17 | 주식회사 풍강 | Wheel nut for automobile with protecting cap |
| CN210240274U (en) * | 2019-04-25 | 2020-04-03 | 泸州精通流体液压机械有限公司 | Anti-loosening nut for hydraulic system |
| CN210318115U (en) * | 2019-05-28 | 2020-04-14 | 嘉兴远信五金科技股份有限公司 | Anti-loosening cap type nut |
| CN210715513U (en) * | 2019-09-18 | 2020-06-09 | 芜湖兆合汽车零部件科技有限公司 | Novel cap-shaped nut |
| CN211951143U (en) * | 2020-04-22 | 2020-11-17 | 浙江先创汽车零部件有限公司 | Metal nut |
| CN213206281U (en) * | 2020-08-25 | 2021-05-14 | 博峰汽配科技(芜湖)有限公司 | Dustproof nut and nut dustproof cap |
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| Publication number | Publication date |
|---|---|
| CN113217519A (en) | 2021-08-06 |
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