CN111743231B - Engineering knee pad - Google Patents
Engineering knee pad Download PDFInfo
- Publication number
- CN111743231B CN111743231B CN202010643319.1A CN202010643319A CN111743231B CN 111743231 B CN111743231 B CN 111743231B CN 202010643319 A CN202010643319 A CN 202010643319A CN 111743231 B CN111743231 B CN 111743231B
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- Prior art keywords
- shell
- clamping
- supporting points
- pad
- supporting
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/06—Knee or foot
- A41D13/065—Knee protectors
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
Abstract
The utility model relates to a knee pad for engineering, which belongs to the technical field and comprises a cushion pad arranged in a curved surface and a shell arranged on one side of a bulge of the cushion pad, wherein a connecting piece is arranged on the cushion pad; the edge of one side of the shell, which is away from the cushion pad, is provided with a plurality of fulcrums, and the fulcrums are arranged in a protruding way towards the direction away from the cushion pad; a non-slip strip is additionally arranged on one side of the shell, which is away from the buffer cushion. According to the utility model, the supporting point and the anti-slip strip are arranged on the shell, when a constructor wears the engineering knee pad, the shell is abutted against the ground, the supporting point is directly abutted against the ground, and the supporting force and the friction force are provided for the whole engineering knee pad; the friction between the anti-slip strips and the ground is matched, so that the shell can stably limit the position on the ground, and the safety of constructors during construction on an inclined construction surface is improved.
Description
Technical Field
The utility model relates to a knee pad, in particular to an engineering knee pad.
Background
In order to facilitate construction of a lower level area during construction operations, construction personnel need to kneel and stand on the ground. In order to protect the patella of the constructor, it is generally necessary to wear a knee pad.
If grant chinese patent of bulletin number CN208523831U discloses a human knee protection equipment, including the tie-down area of tie-down layer and setting in the tie-down layer both sides, the outside of tie-down layer is provided with the knee-pad layer, and the inboard is provided with soft cushion layer, and swing joint has the binding-up area on the tie-down layer, is provided with the box on the medial surface of knee-pad layer, is provided with on the tie-down layer and detains with the box mutually supporting son, is provided with the circle hair face of magic subsides circle on the tie-down layer, is provided with on the knee-pad layer with circle hair face complex thorn hair face. The knee pad layer can be more firmly fixed on the lower binding belt, and the buffer belt on the connecting piece can buffer the knee.
The prior art has the following defects: when constructors construct on the inclined plane, the knee pad layer is abutted against the ground. The contact surface between the knee pad and the ground is only a small area in the middle due to the shape of the knee pad and the cooperation of the patella. When constructors exert excessive force during construction, slipping occurs between the knee pad layer and the ground, and the stability is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide an engineering knee pad which has the effect of improving the stability in the construction process.
The above object of the present utility model is achieved by the following technical solutions:
the knee pad for engineering comprises a cushion pad arranged in a curved surface and a shell arranged on one side of a bulge of the cushion pad, wherein a connecting piece is arranged on the cushion pad; the edge of one side of the shell, which is away from the cushion pad, is provided with a plurality of fulcrums, and the fulcrums are arranged in a protruding way towards the direction away from the cushion pad; and a non-slip strip is additionally arranged on one side of the shell, which is away from the buffer cushion.
By adopting the technical scheme, when constructors construct on the inclined plane, the supporting point of the engineering knee pad worn on the knee cap is directly supported on the ground, and enough ground grabbing force is provided for the engineering knee pad. Because the fulcrum is located the edge of casing to can follow the edge restriction casing of casing and remove, cooperate the frictional resistance between antislip strip and the ground simultaneously, strengthen the laminating nature between casing and the ground, improve the stability in the constructor work progress.
The present utility model may be further configured in a preferred example to: the fulcrum comprises two first supporting points and two second supporting points; when the cushion pad is covered outside the knee cap of the human body, two first supporting points are positioned at the upper part of the knee cap, and two second supporting points are positioned at the lower part of the knee cap; and the two first supporting points and the two second supporting points are symmetrically distributed on two sides of the patella.
Through adopting above-mentioned technical scheme, when using engineering knee pad, two first supporting points and two second supporting points directly conflict in subaerial, thereby provide four fulcrums for the casing and improve the overall stability of casing, the security in the reinforcing constructor work progress.
The present utility model may be further configured in a preferred example to: one side of the first supporting point, which deviates from the center of the shell, is in an outwards convex arc-shaped arrangement, a connecting section is formed between the outwards convex arc-shaped arrangement and the shell, and a plurality of reinforcing rings are arranged outside the connecting section.
Through adopting above-mentioned technical scheme, increase the turning point of first supporting point and casing hookup location to strengthen the joint strength between first supporting point and the casing, and then make casing and ground produce the static friction force when the casing is whole can provide stable holding power for constructor.
The present utility model may be further configured in a preferred example to: one side of the first supporting point, which faces the center of the shell, is a concave cambered surface, and the concave cambered surface and the surface of the shell are in smooth transition.
Through adopting above-mentioned technical scheme, strengthen the overall structure intensity of first strong point, increase the smoothness of casing surface simultaneously, improve the pleasing to the eye degree of casing itself.
The present utility model may be further configured in a preferred example to: the two second supporting points are obliquely arranged from the separated end to the adjacent end in a direction close to the surface of the shell, and the shell between the two second supporting points is sunken towards the cushion pad to form an indent region.
By adopting the technical scheme, certain deformability is provided for the mutual separation or approaching of the two second supporting points, so that the shell can be adapted to constructors with different weights. Meanwhile, the concave area can enhance the connection strength between the two second supporting points, enhance the linkage between the two second supporting points and further improve the stability of the shell on the ground.
The present utility model may be further configured in a preferred example to: the first supporting point and the second supporting point are arranged at one end of the shell, facing the cushion pad, and are arranged as openings, and the edges of the openings of the first supporting point and the second supporting point are in smooth transition with the shell; the inner walls of the first supporting points and the second supporting points facing one side of the buffer cushion are provided with crisscross reinforcing ribs.
By adopting the technical scheme, the structural strength of the first supporting point and the second supporting point is enhanced, so that the service life of the shell is prolonged. Simultaneously, the shell can bear larger pressure, and larger friction resistance is provided.
The present utility model may be further configured in a preferred example to: a clamping tube part is additionally arranged on one side of the shell, which is away from the buffer cushion, and comprises a first clamping strip and a second clamping strip which are parallel to each other, wherein the first clamping strip and the second clamping strip are both parallel to a connecting line of the centers of the two first supporting points; the adjacent side of the first clamping strip and the second clamping strip form a clamping cambered surface through concave arc transition.
Through adopting above-mentioned technical scheme, the construction face of part slope needs to lay pipeline or reinforcing bar, through with pipeline or reinforcing bar etc. be located the structure joint on the inclined plane in first card strip and second card strip to the reinforcing is spacing to the casing, and then improves the stability of casing on ground.
The present utility model may be further configured in a preferred example to: the anti-slip strips are parallel to each other and are arranged at intervals, the clamping tube parts are arranged at intervals and are parallel to the anti-slip strips, and the clamping tube parts are positioned among the plurality of anti-slip strips; the diameters of the clamping cambered surfaces in the clamping pipe parts are any one of 10mm and 15mm, and the clamping cambered surfaces with the diameters of 10mm and 15mm simultaneously exist on the same shell.
Through adopting above-mentioned technical scheme, the joint cambered surface that the diameter is 10mm and 15mm can joint diameter at 8mm-12mm and 13mm-17 mm's pipeline or tubular object at the in-process of the mutual deformation of first card strip and the second card strip of card pipe portion. In general, since the structures such as pipes and reinforcing bars of about 10mm and about 15mm are large, they can be engaged with the pipe engaging portion, and the structure can be further improved.
The present utility model may be further configured in a preferred example to: the shell is far away from one side of the cushion pad and is sunken towards the cushion pad to form a reinforced area, and the anti-slip strips and the clamping pipe parts are all positioned in the area surrounded by the reinforced area.
The present utility model may be further configured in a preferred example to: the first supporting point and the second supporting point are both additionally provided with anti-skid patterns on the surface of one end far away from the shell.
Through adopting above-mentioned technical scheme, the ground force of grabbing of first supporting point and second supporting point is further improved to strengthen the frictional resistance between casing and the ground, improve engineering knee pad stability on ground when constructor is under construction.
In summary, the present utility model includes at least one of the following beneficial technical effects:
the supporting point and the anti-slip strip are arranged on the shell, when a constructor wears the engineering knee pad, the shell is abutted against the ground, the supporting point is directly abutted against the ground, and supporting force and friction force are provided for the whole engineering knee pad; the friction between the anti-slip strips and the ground is matched, so that the shell can stably limit the position on the ground, and the safety of constructors during construction on an inclined construction surface is improved;
the pipe clamping part is arranged, so that the tubular structure on the inclined construction surface can be clamped into the pipe clamping part, the limiting effect on the shell is improved, and the stability of the engineering knee pad in the use process is enhanced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the overall structure of the male side of the housing;
FIG. 3 is a schematic cross-sectional structural view of the housing;
fig. 4 is a schematic view of the overall structure of the concave side of the housing.
In the figure, 1, a cushion pad; 2. a housing; 21. an anti-slip strip; 22. a reinforced region; 221. reinforcing strips; 3. a connecting piece; 31. fixing the cloth piece; 311. hook-face stickers of the magic tape; 32. adjusting the cloth piece; 321. a magic tape is pasted on the surface; 4. a fulcrum; 41. a first support point; 411. a connection section; 412. a concave cambered surface; 42. a second support point; 421. a buffer section; 5. a concave region; 6. a reinforcing ring; 7. reinforcing ribs; 8. a pipe clamping part; 81. the first clamping strip; 82. a second clamping strip; 9. clamping the cambered surface; 10. anti-skid lines.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the knee pad for engineering according to the present utility model includes a cushion pad 1 disposed in a curved surface and a case 2 sewn to a convex side of the cushion pad 1. The cushion pad 1 is formed by combining an elastic layer and oxford cloth wrapped outside the elastic layer, and the elastic layer can be made of elastic materials such as PU and the like. After the cushion 1 is covered on the outside of the patella of the human body, the position of the cushion 1 is fixed by the connecting members 3 sewn to the cushion 1.
The connector 3 includes a fixing cloth piece 31 sewn to one side of the cushion pad 1 and an adjusting cloth piece 32 sewn to the other side of the cushion pad 1. The fixing cloth piece 31 is arranged in a semicircular shape, and one side of the protrusion is arranged toward the adjusting cloth piece 32. The fixed cloth piece 31 is sewed with a magic tape hook surface patch 311, one end of the magic tape hook surface patch 311 is sewed in the oxford fabric of the cushion pad 1, and the other end is cut off to one end of the fixed cloth piece 31 far away from the cushion pad 1. The adjustment cloth 32 is provided in a strip shape, and the width thereof is reduced from the cushion pad 1 to a direction away from the cushion pad 1. The end of the adjusting cloth piece 32 far away from the cushion pad 1 is arc-shaped, and the end part of the arc-shaped end part is sewed with a magic tape surface patch 321. One end of the magic tape felt surface patch 321 is sewed on the adjusting cloth piece 32, and the other end extends to the outside of the adjusting cloth piece 32 along the direction in which the adjusting cloth piece 32 is away from the cushion pad 1.
The fixing cloth piece 31 and the adjusting cloth piece 32 are made of elastic cloth which can stretch along the length direction of the adjusting cloth piece 32. In order to prolong the service lives of the fixing cloth piece 31 and the adjusting cloth piece 32, edges of the fixing cloth piece 31 and the adjusting cloth piece 32 are sewed with a wrapping edge, and the wrapping edge is made of elastic cloth. After the cushion pad 1 is covered outside the knee cap of the human body, the magic tape surface patch 321 is pulled to cover the magic tape hook surface patch 311 on the fixing cloth piece 31, so as to fix the cushion pad 1.
Referring to fig. 2, the housing 2 is made of transparent rubber and has an elastic structure, and a fulcrum 4 is provided at an edge of the housing 2 facing away from the cushion pad 1, so that the housing 2 can be supported on the ground by the fulcrum 4.
The fulcrum 4 includes two first support points 41 and two second support points 42. When the cushion 1 is covered on the outside of the patella of a human body, two first support points 41 are located at the upper part of the patella and two second support points 42 are located at the lower part of the patella. And the two first supporting points 41 and the two second supporting points 42 are symmetrically distributed on two sides of the patella.
The first supporting point 41 is arranged in a protruding manner towards the direction away from the cushion pad 1, so that the first supporting point 41 is located at one end of the shell 2 towards the cushion pad 1 and is arranged as an opening, i.e. the first supporting point 41 is of a cylindrical structure with the same thickness as the shell 2. The side of the first supporting point 41 facing away from the center of the shell 2 is arranged in a convex arc shape, and a connecting section 411 is formed between the convex arc shape and the shell 2. The outside of connecting section 411 is provided with many strengthening rings 6, and strengthening rings 6 are outwards superimposed stairstepping setting towards casing 2 from the unsettled one end of connecting section 411. One side of the first supporting point 41 facing the center of the shell 2 is a concave cambered surface, and the concave cambered surface and the surface of the shell 2 are in smooth transition so as to improve the overall structural strength of the first supporting point 41.
The second support points 42 are arranged convexly towards the direction away from the cushion pad 1, and the housing 2 between the two second support points 42 is recessed towards the cushion pad 1 to form the concave region 5, so that the two second support points 42 and the concave region 5 form a whole. And two second supporting points 42 are opened towards one end of the cushion pad 1, and the two second supporting points 42 and the concave area 5 form a thin-wall structure with the thickness consistent with that of the shell 2. The two second supporting points 42 are arranged in a semicircular shape on the side facing away from the cushion pad 1, and the semicircular straight sides are opposite. A buffer section 421 is formed between the semicircular arc edge of the supporting point and the shell 2, the buffer section 421 is arranged in a convex curved surface, a plurality of reinforcing rings 6 are arranged on the curved surface, and the reinforcing rings 6 are arranged in a stepped mode from one end of the buffer section 421 in a suspending mode towards the shell 2 in an outward superposition mode. The two second support points 42 are arranged obliquely from the separated end to the adjacent end in a direction approaching the surface of the housing 2, so that the deformation capability of the separated or adjacent movement exists between the two second support points 42.
In order to improve the structural strength of the first supporting points 41 and the second supporting points 42, referring to fig. 2 and 3, the two first supporting points are arranged on the inner wall facing the cushion pad 1, and the two second supporting points 42 and the concave area 5 form a whole, which is provided with criss-cross reinforcing ribs 7, facing one side of the cushion pad 1. In order to improve the friction between the first supporting point 41 and the second supporting point 42 and the ground, the anti-skid patterns 10 are additionally arranged on the first supporting point 41 and the second supporting point 42. The anti-skid pattern 10 is composed of two sleeved semicircular convex strips, and the arrangement position of the anti-skid pattern 10 is matched with the shape of one side, away from the cushion pad 1, of the corresponding first supporting point 41 and second supporting point 42.
The anti-slip strips 21 are arranged in the area, which is surrounded by the two first supporting points 41 and the two second supporting points 42, on the shell 2, the anti-slip strips 21 are parallel to the connecting line of the centers of the two first supporting points 41, and a plurality of anti-slip strips 21 are arranged in parallel and at intervals. The section of the anti-slip strip 21 is in a right triangle shape, and meanwhile, the anti-slip strip 21 is hollow towards one side of the cushion pad 1, so that a thin-wall structure with uniform thickness is formed. The right-angle side of the anti-slip strip 21 faces the second supporting point 42, and the inclined side of the anti-slip strip 21 is arranged in a protruding manner towards the first supporting point 41. Two adjacent clamping pipe parts 8 are additionally arranged between the anti-slip strips 21, and the clamping pipe parts 8 are parallel to the anti-slip strips 21. The clamping tube part 8 comprises a first clamping strip 81 and a second clamping strip 82 which are parallel to each other, and the adjacent sides of the first clamping strip 81 and the second clamping strip 82 form a clamping cambered surface 9 through concave arc transition. The first clamping strip 81 is close to the second supporting point 42, and one side facing the second supporting point 42 is perpendicular to the shell 2; the second clamping strip 82 is close to the first supporting point 41, and one side of the second clamping strip 82 facing the first supporting point 41 is in a convex arc shape. The diameter of the clamping cambered surface 9 close to the first supporting point 41 is 15mm, the diameter of the other clamping cambered surface 9 is 10mm, and the corresponding clamping cambered surfaces 9 are provided with identification parts of 15mm and 10 mm.
In order to further enhance the structural strength of the junction between the area of the cleat 21 and the housing 2, as shown in fig. 3 and 4, the entire area of the housing 2 corresponding to the cleat 21 is recessed toward the cushion pad 1 to form a reinforcing area 22. The groove bottom of the reinforcement region 22 is arranged in a plane, and the anti-slip strip 21 extends from the bottom of the reinforcement region 22 in a direction away from the cushion 1. The edge of the reinforcing area 22 facing to one side of the cushion pad 1 is surrounded by a reinforcing strip 221, the reinforcing strip 221 surrounds the anti-slip strip 21 and the outside of the clamping tube part 8, the reinforcing strip 221 is formed by combining three straight line segments and two curve segments, the three straight line segments respectively correspond to two first supporting points 41 and the area between the two first supporting points 41, and the two curve segments correspond to two sides of the knee cap of the human body.
In order to facilitate the use of the housing 2 and improve the friction between the housing 2 and the ground, the plane of the side of the two first support points 41 facing away from the housing 2 is on the same plane as the plane of the side of the anti-slip strip 21, the first clamping strip 81 and the second clamping strip 82 facing away from the housing 2.
Wherein, the shell 2 and all the structures on the shell are integrally formed by integral molding, and the whole presents a structure with elasticity.
The implementation principle of the embodiment is as follows: when the novel knee cap cushion is used, one side, deviating from the shell 2, of the cushion pad 1 is attached to the outside of a knee cap of a human body, the magic tape is pulled to be attached to the hook surface patch 311 by the magic tape surface patch 321, and the position locking of the cushion pad 1 is realized. The clamping pipe part 8 is aligned with a pipeline or other tubular structures which need to be clamped, and the patella is pressed down to drive the shell 2 to move towards the ground until the pipeline is clamped in the clamping pipe part 8, and simultaneously the two first supporting points 41, the two second supporting points 42 and the anti-slip strips 21 are abutted against the ground.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. The utility model provides an engineering knee pad, includes cushion (1) that is curved surface setting and sets up in the casing (2) of cushion (1) protruding one side, be provided with connecting piece (3) on cushion (1); the method is characterized in that: the edge of one side of the shell (2) away from the cushion pad (1) is provided with a plurality of supporting points (4), and the supporting points (4) are arranged in a protruding mode towards the direction away from the cushion pad (1); an anti-slip strip (21) is additionally arranged on one side of the shell (2) away from the buffer pad (1); the fulcrum (4) comprises two first supporting points (41) and two second supporting points (42); when the cushion pad (1) is covered outside the knee cap of the human body, two first supporting points (41) are positioned at the upper part of the knee cap, and two second supporting points (42) are positioned at the lower part of the knee cap; the two first supporting points (41) and the two second supporting points (42) are symmetrically distributed on two sides of the knee cap of the human body; a clamping pipe part (8) is additionally arranged on one side, away from the buffer pad (1), of the shell (2), the clamping pipe part (8) comprises a first clamping strip (81) and a second clamping strip (82) which are parallel to each other, and the first clamping strip (81) and the second clamping strip (82) are both parallel to connecting lines at the centers of the two first supporting points (41); the adjacent sides of the first clamping strip (81) and the second clamping strip (82) form a clamping cambered surface (9) through concave arc transition; the anti-slip strips (21) are parallel to each other and are arranged at intervals, the clamping tube parts (8) are arranged at intervals and are parallel to the anti-slip strips (21), and the clamping tube parts (8) are positioned among the anti-slip strips (21); the diameters of the clamping cambered surfaces (9) in the clamping pipe parts (8) are any one of 10mm and 15mm, and the clamping cambered surfaces (9) with the diameters of 10mm and 15mm simultaneously exist on the same shell (2).
2. An engineering knee brace according to claim 1, wherein: one side of the first supporting point (41) deviating from the center of the shell (2) is in an outwards convex arc-shaped arrangement, a connecting section (411) is formed between the outwards convex arc-shaped arrangement and the shell (2), and a plurality of reinforcing rings (6) are arranged outside the connecting section (411).
3. An engineering knee pad according to claim 1 or 2, wherein: one side of the first supporting point (41) facing the center of the shell (2) is a concave cambered surface (412), and the concave cambered surface (412) and the surface of the shell (2) are in smooth transition.
4. An engineering knee brace according to claim 1, wherein: the two second supporting points (42) are obliquely arranged from the separated end to the adjacent end in the direction close to the surface of the shell (2), and the shell (2) between the two second supporting points (42) is sunken towards the buffer pad (1) to form an indent region (5).
5. An engineering knee brace according to claim 1 or 4, wherein: the first supporting point (41) and the second supporting point (42) are arranged at one end of the shell (2) facing the cushion pad (1) and are arranged in an opening way, and the edge of one end of the opening of the first supporting point (41) and the edge of one end of the opening of the second supporting point (42) are in smooth transition with the shell (2); the inner walls of the first supporting points (41) and the second supporting points (42) facing one side of the cushion pad (1) are provided with crisscross reinforcing ribs (7).
6. An engineering knee brace according to claim 1, wherein: the shell (2) is sunken towards the direction of the cushion pad (1) towards one side of the cushion pad (1) to form a reinforced area (22), and the anti-slip strip (21) and the clamping tube part (8) are both positioned in the area surrounded by the reinforced area (22).
7. An engineering knee brace according to claim 1, wherein: the anti-skid patterns (10) are additionally arranged on the surfaces of one ends of the first supporting points (41) and the second supporting points (42) far away from the shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010643319.1A CN111743231B (en) | 2020-07-06 | 2020-07-06 | Engineering knee pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010643319.1A CN111743231B (en) | 2020-07-06 | 2020-07-06 | Engineering knee pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111743231A CN111743231A (en) | 2020-10-09 |
| CN111743231B true CN111743231B (en) | 2023-09-26 |
Family
ID=72679730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010643319.1A Active CN111743231B (en) | 2020-07-06 | 2020-07-06 | Engineering knee pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111743231B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1747666A (en) * | 2002-12-04 | 2006-03-15 | 托米科膝部防护用具有限公司 | Kneepad |
| CA2570797A1 (en) * | 2006-12-13 | 2008-06-13 | Peter Johann Kielland | Roofer's kneepads |
| CN208387930U (en) * | 2018-06-22 | 2019-01-18 | 杭州大方工具有限公司 | A kind of knee-pad |
| CN109259357A (en) * | 2018-11-20 | 2019-01-25 | 核工业井巷建设集团公司 | A kind of labour protection device for paving operation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6584616B2 (en) * | 2001-07-10 | 2003-07-01 | Travel Caddy, Inc. | Knee pad construction |
-
2020
- 2020-07-06 CN CN202010643319.1A patent/CN111743231B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1747666A (en) * | 2002-12-04 | 2006-03-15 | 托米科膝部防护用具有限公司 | Kneepad |
| CA2570797A1 (en) * | 2006-12-13 | 2008-06-13 | Peter Johann Kielland | Roofer's kneepads |
| CN208387930U (en) * | 2018-06-22 | 2019-01-18 | 杭州大方工具有限公司 | A kind of knee-pad |
| CN109259357A (en) * | 2018-11-20 | 2019-01-25 | 核工业井巷建设集团公司 | A kind of labour protection device for paving operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111743231A (en) | 2020-10-09 |
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