A vibrating screen having an illumination assist mechanism and methods of use thereof
By adjusting the components and the transmission components, the problem of operating the vibrating screen in low-light environments has been solved. The angle of the lighting lamps can be adjusted and the screen can be cleared, thereby improving the operator's observation ability and screening efficiency.
Patent Information
- Application Number
- CN202411137893.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2044-08-19
AI Technical Summary
Traditional vibrating screens are difficult to operate in low light or nighttime environments, affecting screening efficiency and safety.
By setting up an adjustment component, the rotating second lead screw and threaded rod drive the lighting lamp to move up and down, while the rotating first lead screw and transmission block drive the lighting lamp to move left and right. The lighting angle is adjusted through the connecting seat. Combined with the transmission component and the unblocking component, automatic adjustment and unblocking are achieved.
It enables the adjustment of the lighting angle and the clearing of the screen in low-light environments, ensuring that operators can clearly observe the material screening process, adjust operating parameters in a timely manner, and improve safety and screening efficiency.
Smart Images

Figure CN118768198B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a vibrating screen with an auxiliary lighting mechanism and its method of use. Background Technology
[0002] A vibrating screen, also known as a shaking screen or vibrating sieve separator, is a versatile screening device used across various industries, including petrochemicals, chemicals, food processing, pharmaceuticals, and metallurgy. Its main function is to separate impurities and particulate matter from materials, achieving purposes such as screening, filtration, and grading. With technological advancements, the research and application of vibrating screens have become increasingly widespread, especially after the advent of linear vibrating screens, which have demonstrated significant advantages in terms of efficiency, environmental friendliness, and precision.
[0003] In practical applications, vibrating screens often need to operate in various environments, including low-light or nighttime conditions. In these situations, operators need to clearly observe the material screening process in order to adjust operating parameters or handle abnormalities promptly. However, traditional vibrating screens typically lack lighting capabilities, making operation in low-light environments difficult and potentially affecting screening efficiency and safety. Therefore, we propose a vibrating screen with an auxiliary lighting mechanism and its application method. Summary of the Invention
[0004] To overcome the shortcomings of existing technologies, this invention provides a vibrating screen with an auxiliary lighting mechanism and its usage method. Through an adjustable assembly, a rotating second lead screw acts on an auxiliary block, causing the auxiliary block to move up and down within a fixed frame. This movement, in turn, drives a lighting lamp to move up and down via a threaded rod. A rotating first lead screw then acts on a transmission block, causing the transmission block to drive the lighting lamp left and right through the fixed frame. Finally, a connecting seat rotates within the fixed seat, thereby adjusting the lighting angle of the lamp. This allows operators to adjust the lighting position according to their needs, enabling them to clearly observe the material screening process and promptly adjust operating parameters or handle abnormal situations.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a vibrating screen with a lighting auxiliary mechanism, comprising a base, a vibrator on the base, a screen in the middle of the vibrator, an adjustment component at the front and rear ends of the base, a lighting lamp on the adjustment component, the adjustment component driving the lighting lamp to move left, right, up and down, a transmission component on the adjustment component, the transmission component driving the adjustment component, and a clearing component on the adjustment component, the adjustment component driving the clearing component to clear the vibrator.
[0006] As a preferred embodiment of the present invention, the adjustment assembly includes movable chambers disposed on the front and rear end surfaces of the base. Each movable chamber has a bearing at its left end and a first lead screw at its right end. Each first lead screw has a connecting rod at its right end. Each first lead screw is threadedly connected to a transmission block. Each transmission block has a fixed frame at its top. Each fixed frame contains a second lead screw that rotates within it. Each second lead screw has a handwheel at its top. Each second lead screw is threadedly connected to an auxiliary block. Each auxiliary block has a threaded rod at its top. Each threaded rod has a fixed seat at its top. Each fixed seat contains a connecting seat that rotates within it. Each lighting lamp is built into the connecting seat.
[0007] As a preferred embodiment of the present invention, the connecting seat rotates within the fixed seat, and anti-loosening washers are fitted on both ends of the connecting seat, with the anti-loosening washers fitting against the inner wall of the fixed seat.
[0008] As a preferred embodiment of the present invention, the handwheel surface is provided with anti-slip texture, and the handwheel is fixed to the second lead screw by bolts.
[0009] As a preferred embodiment of the present invention, the transmission assembly includes a driven wheel disposed on the right end of the connecting rod, the surface of the driven wheel is provided with a belt, a bracket is provided on the right side of the base, a motor is disposed on the bracket, and the output end of the motor passes through the bracket and is connected to the right end of the driven wheel.
[0010] As a preferred embodiment of the present invention, the input end of the motor is connected to the controller via a wire, and the base is provided with a slot for storing the controller.
[0011] As a preferred embodiment of the present invention, the bracket and the motor are mounted on a base in the belt, and the outer wall of the bracket is configured as an arc shape equal to the inner wall of the belt.
[0012] As a preferred embodiment of the present invention, the unblocking component includes a threaded block threadedly connected to a threaded rod, and a connecting plate is provided on the side surface of the threaded block facing away from the base, and multiple sets of unblocking rods are provided at the bottom of the connecting plate.
[0013] As a preferred embodiment of the present invention, the unblocking rod is configured to have the same shape as the filter holes in the screen, and the spacing between the multiple sets of unblocking rods is equal to the spacing between the multiple filter holes in the screen.
[0014] The present invention also provides a technical solution, a method for using a vibrating screen with an auxiliary lighting mechanism, the specific steps of which are as follows:
[0015] S1: First, install the lighting lamp into the connector and turn on the power. Then, turn the handwheel to make the handwheel drive the second lead screw to rotate in the fixed frame. The rotating second lead screw acts on the auxiliary block, causing the auxiliary block to rotate on the second lead screw and move up and down in the fixed frame. The auxiliary block then drives the threaded rod and the connector to move synchronously, so that the lighting lamp illuminates multiple positions. Then, turn the connector to make the connector rotate in the fixed frame and adjust the illumination angle of the lighting lamp.
[0016] S2: Next, the motor is started by the controller, which drives the driven wheel to rotate. The driven wheel drives another set of driven wheels to rotate via a belt. The two sets of driven wheels drive the first lead screw to rotate on the bearing via the connecting rod. The first lead screw then acts on the transmission block, causing the transmission block to move back and forth on the first lead screw. The fixed frame drives the lighting lamp to move back and forth to illuminate the screen.
[0017] S3: When the threaded rod moves up and down under the drive of the auxiliary block, the threaded block rotates on the threaded rod, causing the threaded block to rotate on the threaded rod. This rotation is then driven by the connecting plate to rotate the unblocking rod until it aligns with the filter holes on the screen. Then, by rotating the handwheel, the handwheel drives the second lead screw to rotate within the fixed frame. The rotating second lead screw acts on the auxiliary block, causing the auxiliary block to rotate on the second lead screw and move up and down within the fixed frame. Simultaneously, the threaded rod drives the unblocking rod to move up and down, thus unblocking the filter holes on the screen.
[0018] Compared with the prior art, the beneficial effects that this invention can achieve are:
[0019] 1. Through the set adjustment component, the rotating second lead screw acts on the auxiliary block, causing the auxiliary block to move up and down within the fixed frame. This, in turn, drives the lighting lamp to move up and down via the threaded rod. Then, the rotating first lead screw acts on the transmission block, causing the transmission block to drive the lighting lamp to move left and right via the fixed frame. Finally, the connecting seat rotates within the fixed seat, thereby achieving the purpose of adjusting the lighting angle of the lighting lamp. This allows the operator to adjust the lighting position of the lighting lamp according to the usage requirements, enabling the operator to clearly observe the screening of materials and adjust operating parameters or handle abnormal situations in a timely manner.
[0020] 2. Through the transmission components, the motor can be started, causing it to act on the driven wheel, which in turn drives the belt to rotate the two sets of connecting rods. This causes the transmission block to move back and forth on the first lead screw, thus achieving the purpose of automatically adjusting the lighting direction of the lighting lamp.
[0021] 3. The unblocking component can be set up so that the auxiliary block can move up and down synchronously while the auxiliary block drives the lighting, thereby unblocking the filter holes in the screen and preventing the screen from getting clogged and affecting the use of the base. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a partial cross-sectional view of the adjustment component of the present invention;
[0024] Figure 3 This is a bottom-view structural diagram of the present invention;
[0025] Figure 4 This is a partial cross-sectional structural diagram of the present invention;
[0026] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0027] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B.
[0028] The components are as follows: 1. Base; 2. Vibrator; 3. Screen; 4. Lighting lamp; 5. Adjustment component; 51. Movable chamber; 52. Bearing; 53. First lead screw; 54. Connecting rod; 55. Transmission block; 56. Fixed frame; 57. Second lead screw; 58. Handwheel; 59. Auxiliary block; 510. Threaded rod; 511. Fixed seat; 512. Connecting seat; 6. Transmission component; 61. Driven wheel; 62. Belt; 63. Bracket; 64. Motor; 7. Unblocking component; 71. Threaded block; 72. Connecting plate; 73. Unblocking rod. Detailed Implementation
[0029] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.
[0030] Example:
[0031] like Figure 1 - Figure 6As shown, this embodiment proposes a vibrating screen with a lighting auxiliary mechanism, including a base 1, a vibrator 2 on the base 1, a screen 3 in the middle of the vibrator 2, an adjustment component 5 at the front and rear ends of the base 1, an illumination lamp 4 on the adjustment component 5, the adjustment component 5 drives the illumination lamp 4 to move left, right and up and down, a transmission component 6 on the adjustment component 5, the transmission component 6 is used to drive the adjustment component 5, and a clearing component 7 on the adjustment component 5, the adjustment component 5 drives the clearing component 7 to clear the vibrator 2;
[0032] The adjustment assembly 5 includes movable chambers 51 disposed on the front and rear end surfaces of the base 1. Each movable chamber 51 has a bearing 52 on its left end and a first lead screw 53 on its right end. Each first lead screw 53 has a connecting rod 54 on its right end. Each first lead screw 53 is threadedly connected to a transmission block 55. Each transmission block 55 has a fixed frame 56 on its top. Each fixed frame 56 has a second lead screw 57 that rotates within it. Each second lead screw 57 has a handwheel 58 on its top. Each second lead screw 57 has an auxiliary block 59 that is threadedly connected to it. Each auxiliary block 59 has a threaded rod 510 on its top. Each threaded rod 510 has a fixed seat 511 on its top. Each fixed seat 511 has a rotating connecting seat 512 within it. Each lighting lamp 4 is built into the connecting seat 512.
[0033] When it is necessary to adjust the lighting position of the lighting lamp 4, install the lighting lamp 4 into the connecting seat 512 and turn on the power. Then turn the handwheel 58 so that the handwheel 58 drives the second lead screw 57 to rotate in the fixed frame 56. The rotating second lead screw 57 acts on the auxiliary block 59, so that the auxiliary block 59 rotates on the threaded second lead screw 57 and moves up and down in the fixed frame 56. The auxiliary block 59 then synchronously drives the threaded rod 510 and the connecting seat 512 to move, so that the lighting lamp 4 illuminates multiple positions. Then turn the connecting seat 512 so that the connecting seat 512 rotates in the fixed seat 511 and adjusts the illumination angle of the lighting lamp 4.
[0034] To ensure the stability of the connecting seat 512 within the fixed seat 511, anti-loosening washers are fitted on both ends of the connecting seat 512, and these washers are in contact with the inner wall of the fixed seat 511. This design utilizes the tension between the two anti-loosening washers to tighten and prevent the connecting seat 512 from rotating back and forth within the fixed seat 511, thus preventing any impact on the use of the lighting lamp 4.
[0035] To improve the stability of handwheel 58, anti-slip texture is provided on the surface of handwheel 58. Handwheel 58 is fixed to the second lead screw 57 by bolts. This design can increase the friction between the operator's hand and handwheel 58, preventing the hand from slipping when turning handwheel 58.
[0036] The transmission assembly 6 includes a driven wheel 61 disposed on the right end of the connecting rod 54. Each driven wheel 61 is provided with a belt 62. A bracket 63 is provided on the right side of the base 1. A motor 64 is provided on the bracket 63. The output end of the motor 64 passes through the bracket 63 and is connected to the right end of the driven wheel 61.
[0037] When motor 64 is needed, it is started by the controller, which drives the driven wheel 61 to rotate. The driven wheel 61 drives another set of driven wheels 61 to rotate via belt 62. The two sets of driven wheels 61 drive the first lead screw 53 to rotate on the bearing 52 via connecting rod 54. The first lead screw 53 then acts on the transmission block 55, causing the transmission block 55 to move back and forth on the first lead screw 53. The fixed frame 56 drives the lighting lamp 4 to move back and forth to illuminate the screen 3.
[0038] To facilitate operation of the motor 64 by staff, the input end of the motor 64 is connected to the controller via a wire. The base 1 is provided with a slot for storing the controller. This design allows staff to operate the connecting rod 54 remotely via the motor 64, preventing material in the screen 3 from splashing onto the staff's clothes during use and causing contamination.
[0039] To facilitate the disassembly of belt 62 by staff, bracket 63 and motor 64 are mounted on base 1 in belt 62. The outer wall of bracket 63 is set as an arc shape equal to the inner wall of belt 62. This design optimizes the external space occupied by bracket 63, belt 62 and motor 64, and prevents motor 64 from occupying too much space and affecting the disassembly of belt 62.
[0040] The unblocking component 7 includes a threaded block 71 threadedly connected to the threaded rod 510. Each threaded block 71 has a connecting plate 72 on the side surface facing away from the base 1. Each connecting plate 72 has multiple sets of unblocking rods 73 at its bottom.
[0041] When it is necessary to unclog the screen 3, first wait for the threaded rod 510 to move up and down under the drive of the auxiliary block 59. Then, rotate the threaded block 71 on the threaded rod 510 to make the threaded block 71 rotate on the threaded rod 510. This will drive the unclogging rod 73 to rotate through the connecting plate 72 until it is aligned with the filter holes on the screen 3. Then, rotate the handwheel 58 to make the handwheel 58 drive the second lead screw 57 to rotate within the fixed frame 56. This will cause the rotating second lead screw 57 to act on the auxiliary block 59, making the auxiliary block 59 rotate on the second lead screw 57 and move up and down within the fixed frame 56. Then, the threaded rod 510 will synchronously drive the unclogging rod 73 to move up and down, thus unclogging the filter holes on the screen 3.
[0042] To improve the unblocking efficiency of the unblocking rod 73, the unblocking rod 73 is designed to have the same shape as the filter holes in the screen 3. The spacing between multiple sets of unblocking rods 73 is equal to the spacing between multiple filter holes in the screen 3. This design allows the unblocking rod 73 to fully fit with the filter holes in the screen 3, thereby improving the unblocking efficiency of the unblocking rod 73 and preventing material from adhering to the inner wall of the holes, which could lead to blockage.
[0043] A method for using a vibrating screen with an auxiliary lighting mechanism, the specific steps of which are as follows:
[0044] S1: First, install the lighting lamp 4 into the connector 512 and turn on the power. Then, turn the handwheel 58 so that the handwheel 58 drives the second lead screw 57 to rotate in the fixed frame 56. The rotating second lead screw 57 acts on the auxiliary block 59, so that the auxiliary block 59 rotates on the threaded second lead screw 57 and moves up and down in the fixed frame 56. The auxiliary block 59 then synchronously drives the threaded rod 510 and the connector 512 to move, so that the lighting lamp 4 illuminates multiple positions. Then, turn the connector 512 so that the connector 512 rotates in the fixed seat 511 and adjusts the illumination angle of the lighting lamp 4.
[0045] S2: Next, the motor 64 is started by the controller, which drives the driven wheel 61 to rotate. The driven wheel 61 drives another set of driven wheels 61 to rotate through the belt 62. The two sets of driven wheels 61 drive the first lead screw 53 to rotate on the bearing 52 through the connecting rod 54. The first lead screw 53 then acts on the transmission block 55, causing the transmission block 55 to move back and forth on the first lead screw 53. The fixed frame 56 drives the lighting lamp 4 to move back and forth to illuminate the screen 3.
[0046] S3: When the threaded rod 510 moves up and down under the drive of the auxiliary block 59, the threaded block 71 is rotated on the threaded rod 510, causing the threaded block 71 to rotate on the threaded rod 510. The connecting plate 72 drives the unblocking rod 73 to rotate until it is aligned with the filter holes on the screen 3. Then, the handwheel 58 is rotated, causing the handwheel 58 to drive the second lead screw 57 to rotate within the fixed frame 56. The rotating second lead screw 57 acts on the auxiliary block 59, causing the auxiliary block 59 to rotate on the second lead screw 57 and move up and down within the fixed frame 56. The threaded rod 510 then synchronously drives the unblocking rod 73 to move up and down, thus unblocking the filter holes on the screen 3.
[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A vibrating screen with an illumination auxiliary mechanism, comprising a base (1), characterized in that: The base (1) is equipped with a vibrator (2), and the vibrator (2) has a screen (3) in the middle. The base (1) has adjustment components (5) at the front and rear ends. The adjustment components (5) are equipped with a light (4). The adjustment components (5) drive the light (4) to move left, right, up and down. The adjustment components (5) are equipped with a transmission component (6). The transmission component (6) drives the adjustment components (5). The adjustment components (5) are equipped with a dredging component (7). The adjustment components (5) drive the dredging component. (7) Unblock the vibrator (2). The adjustment assembly (5) includes a movable chamber (51) set on the front and rear end surfaces of the base (1). The movable chamber (51) has a bearing (52) on its left end and a first lead screw (53) on its right end. The first lead screw (53) has a connecting rod (54) on its right end. The first lead screw (53) is threaded with a transmission block (55). The top of the transmission block (55) has a fixed frame (56). A second lead screw rotates inside the fixed frame (56). (57), the second lead screw (57) is provided with a handwheel (58) at the top, the second lead screw (57) is threaded with an auxiliary block (59), the auxiliary block (59) is provided with a threaded rod (510) at the top, the threaded rod (510) is provided with a fixed seat (511) at the top, the fixed seat (511) is rotatably connected with a connecting seat (512), the lighting lamp (4) is built into the connecting seat (512), the transmission assembly (6) includes a driven wheel (61) provided on the right end of the connecting rod (54), the driven wheel (61) is provided with a handwheel (58) at the top, the driven wheel (61) is provided with a handwheel (58) at the top, the auxiliary block (59) is threaded with a handwheel (59) at the top, the threaded rod (510) is provided with a fixed seat (511) at the top, the connecting seat (511) is rotatably connected with a connecting seat (512), the lighting lamp (4) is built into the connecting seat (512), the transmission assembly (6) includes a driven wheel (61) provided on the right end of the connecting rod (54), the driven wheel (61) is provided with a handwheel (58) at the top, the driven wheel (61) is provided with a handwheel (59) at the top, the threaded rod (59) is provided with a handwheel (58) at the top, the threaded rod (59) is provided with a handwheel (59) at the top, the threaded rod (59) is provided with a handwheel (59) at the top, the threaded rod (59) is provided with a handwheel (510) at the top, the threaded rod (510) is provided with a handwheel (58) at the top, the threaded rod (59) is provided with a handwheel (59) at the top, the threaded rod (59) is provided with a handwheel (59) at the top The wheel (61) is provided with a belt (62), the base (1) is provided with a bracket (63) on the right side, the bracket (63) is provided with a motor (64), the output end of the motor (64) passes through the bracket (63) and is connected to the right end of the driven wheel (61), the unblocking component (7) includes a threaded block (71) threadedly connected to a threaded rod (510), the threaded block (71) is provided with a connecting plate (72) on the side surface away from the base (1), and the bottom of the connecting plate (72) is provided with multiple sets of unblocking rods (73).
2. A vibrating screen with an illumination auxiliary mechanism according to claim 1, characterized in that: The connecting seat (512) rotates within the fixed seat (511). Anti-loosening washers are fitted on both ends of the connecting seat (512), and the anti-loosening washers are in contact with the inner wall of the fixed seat (511).
3. A vibrating screen with an illumination auxiliary mechanism according to claim 2, characterized in that: The handwheel (58) has anti-slip texture on its surface and is fixed to the second lead screw (57) by bolts.
4. A vibrating screen with an illumination auxiliary mechanism according to claim 3, characterized in that: The input end of the motor (64) is connected to the controller via a wire, and the base (1) is provided with a slot for storing the controller.
5. A vibrating screen with an illumination auxiliary mechanism according to claim 4, characterized in that: The bracket (63) and the motor (64) are mounted on the base (1) in the belt (62), and the outer wall of the bracket (63) is set to be an arc shape equal to the inner wall of the belt (62).
6. A vibrating screen with an illumination auxiliary mechanism according to claim 5, characterized in that: The unblocking rod (73) is configured to have the same shape as the filter holes in the screen (3), and the spacing between multiple sets of the unblocking rod (73) is equal to the spacing between multiple filter holes in the screen (3).
7. The method of using a vibrating screen with an auxiliary lighting mechanism according to claim 6, characterized in that: S1: First, install the lighting lamp (4) into the connecting seat (512) and turn on the power. Then, turn the handwheel (58) so that the handwheel (58) drives the second lead screw (57) to rotate in the fixed frame (56) and the rotating second lead screw (57) acts on the auxiliary block (59) so that the auxiliary block (59) rotates on the second lead screw (57) and moves up and down in the fixed frame (56). The auxiliary block (59) then synchronously drives the threaded rod (510) and the connecting seat (512) to move so that the lighting lamp (4) illuminates multiple positions. Then, turn the connecting seat (512) so that the connecting seat (512) rotates in the fixed seat (511) and the illumination angle of the lighting lamp (4) is adjusted. S2: Next, the motor (64) is started by the controller, which drives the driven wheel (61) to rotate. The driven wheel (61) drives another set of driven wheels (61) to rotate through the belt (62). The two sets of driven wheels (61) drive the first lead screw (53) to rotate on the bearing (52) through the connecting rod (54). The first lead screw (53) then acts on the transmission block (55), causing the transmission block (55) to move back and forth on the first lead screw (53). The fixed frame (56) drives the lighting lamp (4) to move back and forth to illuminate the screen (3). S3: When the threaded rod (510) moves up and down under the drive of the auxiliary block (59), the threaded block (71) is rotated on the threaded rod (510), so that the threaded block (71) rotates on the threaded rod (510), and the unblocking rod (73) is rotated through the connecting plate (72) until it is aligned with the filter holes on the screen (3). Then, the handwheel (58) is rotated, so that the handwheel (58) drives the second screw (57) to rotate in the fixed frame (56), and the rotating second screw (57) acts on the auxiliary block (59), so that the auxiliary block (59) rotates on the second screw (57) and moves up and down in the fixed frame (56). Then, the threaded rod (510) drives the unblocking rod (73) to move up and down, and unblocks the filter holes on the screen (3).
Citation Information
Patent Citations
Powder particle screening device
CN219129857U
Garbage bagging machine
JP2004351253A