TWM249379U - Axle sheath and axle structure applying the same - Google Patents

Description

/ y IV. Creation instructions (1) [Technical field to which the new type belongs] This creation is related to the sleeve, its opening and guide bearing structure, especially about a C-shaped shaft [prior art], the angle between the stem and the center of the circle is less than 180 Degrees. A gold 7 f tracing machine is usually provided with a shaft sleeve on the guide rod, so that the shaft sleeve is used to drive the guiding interface to perform 2 scanning work. Therefore, the shaft sleeve is the main bearing structure of the scanning light machine. It is one of the control elements of transmission accuracy. Schematic diagram of the known shaft set, as shown in the figure of light machine #rust, ^ (C), is the commonly used material of the three kinds of shaft sleeves and slides along the guide rod 12 through the shaft sleeve. (A) Picture Υ shows lubrication Effector. The entire shaft sleeve is electric: It is not a single-part type as shown in the figure, or as the first part type. (C) The plural number shown in the figure (a) The sleeve 10 shown in the figure is compared with the first (:: shaft sleeve 10, which has the advantage of fewer parts, iron: and-(c), And the parts take up a lot of space and the assembly tolerance is large = and the part has the overall (a) ^ ® and the second (b) figure explained, first like the second (0.)-will be installed with the second known single-part shaft sleeve 10 The schematic diagram on the optical machine 14 is not. It is the distance L from the heart to the housing 16: where the guide rod 12 circle L = a + b + c + d where a is the radius of the guide rod 12; b is the thickness of the sleeve 10; c is the meat thickness of the pumping portion 142 of the optical machine 14. d is the distance between the optical machine 14 and the housing 16. Among them, 'the optical machine 14 is a moving part, so there must be a distance d Heart configuration, and here

Page 5 4. Creation Instructions (2) Poor. The structure head L is composed of 4 sets of numbers. Therefore, there are 4 sets of cumulative gears. Another conventional machine using a single-part shaft sleeve is shown in the figure. The bearing section 142 # of the gear 14 is as the first (b ) The distance L to the housing 16 is. The center of the guide rod 12 is L = a + b + c, where a is the radius of the guide rod 12; b is the thickness of the shaft sleeve 10; c is the shaft sleeve 10 to The distance of the shell 16. Among them, since the shaft sleeve 10 is coupled to the light machine 14 and is the same as the light machine 14, that is, the shaft sleeve 10 and the light machine 14 are moving parts, a distance c must be arranged. In this bearing structure, because L is composed of 3 sets of numbers, there are also 3 sets of accumulated tolerances' which still cannot effectively reduce the size of the light machine and improve the assembly accuracy. In order to overcome the above size problem, another conventional bushing is not shown in the third and third (a) diagrams. The bushing 10 is U-shaped and contacts the guide rod 12 in a semi-circular shape. 〇, can not be limited to the guide rod 12 alone, in order to make the light machine 14 can move stably along the guide rod 12, it is necessary to add a wear-resistant sheet or lubricating sheet 18 on the light machine 丨 4 to face the housing 16 or glass, so that the optical machine 14 can stably move along the guide rod 12. However, the arrangement of the wear-resistant plate or lubricating plate j 6 not only increases the space occupied by the overall device, but also increases the overall assembly of the optical machine, which increases the assembly cost and material cost. Furthermore, in actual use, due to the shaft sleeve 10, and the guide The friction of the rod 12 is only a few points. Therefore, after a long time of use, the sleeve 10 will be distorted, and the true roundness of the inner wall will be distorted. Shake during operation. M249379 、 Creation (3) The other two "Paper Sleeve of Scanner" of China Patent Bulletin No. 465885, the type of the bushing is the single-part bushing of the first (3), and its statement The focus of the content is on the design of the assembly structure, and the problems of large space occupied by components and large cumulative tolerances of assembly. Because L's creation is aimed at the above-mentioned shortcomings, a shaft sleeve and a bearing structure for its application are proposed to meet today's needles and improve assembly accuracy. See 7 requirements for the miniaturization of the first machine, and [new plastic content] The main purpose of the innovation is to provide a bearing structure: by designing the sleeve to be C-shaped, the angle of the center of the axis of its application is less than 180 ° 'in conjunction with the opening of the optical-mechanical bearing block: two; guide; achieve :: the overall component occupies space and reduces-poor effect, in order to truly solve the problem of the large size of the conventional overall device. The purpose is to provide a bearing bearing broadcast & ^ ia with the advantage of high installation accuracy. Bearings, W structure 'has another purpose of the original creation, tied to the guide rod, so that-bearing structure through the shaft Set :: = can be restrained separately, with the advantage of fewer parts, when the time is changed = soil is stably shifted roundness distortion and can not be effectively clamped on the guide bar. 0 because of friction, yet another creation of the original The purpose is based on the change of the combination of the sleeve and the optical machine. C: The design of the sleeve has the advantage of high elasticity of the visual axis meter. It has a bearing structure that is based on this creation, a transmission guide interface for the sleeve system and the rod to slide. , = A bearing structure guides this shaft along a shaft A ring-shaped body, and four, creation instructions (4) The ring-shaped body is set to the right _ M ^ its semicircle, the heart mouth is sleeved outside the guide rod and covers the guide rod more than along the guide rod = bu 'to make the bearing structure Stability is achieved by the sleeve. The bearing holder to which the sleeve of this creation is applied is provided with a receiving slot. The two structures include a shaft bearing structure. The two ends of the receiving slot are: The second sleeve of the sliding device is used as a bearing seat to slide on the guide rod ===, so that the sliding device can be used to stably slide along the guide rod. The guide interface makes the following easy to understand the creation through the effect of specific embodiments ... [Technical embodiment] This implementation is a C-shaped bushing with a single part. It is recommended that the angle between the center of the circle is less than 180 degrees, in order to move stably by a single private sweat 1 / guide, i cooperate Opto-mechanical bearing / two-axis sleeve parts can make the space-occupied opening design of the optical body component, effectively reducing the whole as shown in the fourth figure, which is based on the creative red 1-ring book with an opening σ24. == Two less than 180 degrees' in order to stably clamp outside the guide sample 30. The sleeve 20 is- The molding may have a single lubrication are various, for example, the oil powder metallurgy J = bovine axis of molded plastic material bushings or Teflon (p〇lytetraf lu〇aethyiene, M249379

PTFj) self-lubricating bushing made of material. Since the opening 24 of the shaft sleeve 20 is “a” less than 18 °, the shaft sleeve 20 is installed in the inner part as a transmission guide interface for sliding along the guide rod 30 = the guide rod 3 to stably clamp. Outside the guide rod 30, the bearing structure can be stably slid on the guide rod 30 by using the sleeve 20. The shaft sleeve 20 of this creation is provided to be installed in a sliding bearing name, so that the bearing structure can pass through The shaft sleeve 2G smoothly moves on the guide rod 3 (). The bearing structure is suitable for a light machine for capturing images, such as a light machine of a device such as a scanner, a photocopier, a fax machine, or a multifunction business machine; In addition, the bearing structure is also suitable for a print head module in a printing device. The following uses the optical machine of the scanner as an example to illustrate the combined structure of the shaft sleeve 20 and the optical machine in this creation and achieve the effect. (A) to fifth (c), the shaft sleeve 20 of this creation can be placed below, to the side, or above the optical machine 40, compared with the conventional technology. The advantage of the shaft sleeve set made of parts is that the shaft sleeve 20 of this creation has a small number of parts, compared with the single zero of the conventional technology. The advantage of this creation is that it can reduce the space occupied by the entire assembly and reduce the cumulative tolerance of the assembly, so that the height of the overall machine can be reduced or the width can be narrowed. Its effect will be shown in Figure 6 (a) and Figure 6 (b) is used to explain and verify. Figure 6 (a) shows the schematic diagram of the shaft sleeve installed in the bearing structure of the optical machine. The distance l from the center of the rod 30 to the housing 50 is: L = a + b where a is the radius of the guide rod 30;

M249379

The distance from Morigawa to broken body 50. Because L is composed of 2 sets of numbers, there are only 2 sets of cumulative tolerances. _ 'Since the guide rod 3G is a fixed part, the dimension b in the sixth (a) diagram is acceptable, and the result is shown in the sixth (b) diagram, where the distance L from the center of the guide rod 30 to the housing 50 becomes : L = a where a is the radius of the guide bar 30.

Because L is composed of a group of numbers, there are only 丨 groups of cumulative tolerances. From this :: Compared with the conventional technology, this creation can reduce the height or width of the housing 50 (that is, the ruler ^, please refer to Figure 5 (b) for the width part), and it can reduce the cumulative I more. Good teamwork. Of course, the sleeve 20 is not limited to be seated on the edge of the optical machine 40, and it depends on the design of the optical machine 40.

The shaft sleeve 2 of this creation can be implemented in the form shown in the fourth picture, please refer to the sectional view of the other form of the creation. The form of the shaft sleeve 20 is an open type. The opening angle is & degrees. Since the friction between the shaft sleeve 20 and the guide rod 30 is only a few points in actual use, the shaft sleeve 20 is designed to be in contact with the guide rod 30 at three points or more. Multi-point contact, and also covers the guide rod 30 beyond its semicircle, where the two contact points closest to the opening of the shaft sleeve 20 'the angle b between the center of the circle and the guide rod 30 must be less than 180 degrees, so that the shaft sleeve 20 can be stabilized Detained outside the guide bar 30. Therefore, with this design of the sleeve that makes the angle between the opening contact point of the sleeve 20 and the center of the guide rod 30 less than 180 degrees, even if it is used for a long time, the true roundness of the inner wall of the sleeve 20 is distorted. The shaft sleeve 20 can still be effectively confined outside the guide rod 30, so that the optical machine 40 can run stably without any known shaking.

Page 10 Fourth, the creation description (7) ㈤ before the picture and the description of the flute two shaft sleeve 20 embodiment is a -body molding, in addition, as shown in the eighth inside one # 八 (b), the shaft sleeve 20 also It can be composed of a ring-shaped body 22 and two or two layers or slides 26. The ring-shaped body 22 is integrally formed, and the withering is optional. It can be metal or non-metal, including the aforementioned shaft with a wet connection. The coating / slider 26 bonded to the inside of the ring-shaped body 22 ^ i Θ The contact surface of the guide rod 30 has lubricity or abrasion resistance. Figures IX (a) through IX (C) are examples of three types of bearing structures for this creation with two 40 two 1 2 cancers. As shown in the figure, the bearings of the light machine 40 The structure includes a bearing block 42 for receiving a guide rod 30; the toilet roll rrn is jointly formed with a combined groove with a shaft sleeve 20 of 44 and the same, the bearing block 42 has a rounded opening, It also means that the bearing seat 42 does not necessarily cover the guide rod 30 more than Λ any sound. The angle C between the opening 44 of the seat holder 42 and the center of the guide rod 30 may be the center of vision shaft sleeve 20 and the optical machine. The combination method depends on 40. Matching: The combination with the optical machine 4 ° or fixed method can adopt dry design. The principle and function of the two fixed combination methods will be fascinated to prove that Shixun ^% + ( c) feasibility of m-+ dagger 6. Please refer to the tenth (a) drawing. ί ^ X. r ^ · (a), (three) perpendicular to the axial direction of the guide rod 30, and the axial axis of the guide shaft The direction of rotation M; and the optical machine 4. The opening 44 is the size of the mating position is smaller than the machine 4. The housing 2 of the bearing seat 42 is torn into the light θ n, and the shaft sleeve 20 and the bearing seat 42 become phase. Page 11 M249379 Fourth, creative instructions (8) Iί The state of coupling. Therefore, the x, γ, z, and M directions can be obtained to control the sleeve 20 firmly coupled to the bearing housing 42 of the optical machine 40. In addition, in terms of elastic fit design, the sleeve 2 The material of 〇 can be μ type of plastic, or metal sheet material integrally formed with a smooth layer. Sleeve 20. _ As shown in the eleventh figure, the three-dimensional = The assembly of the optical machine and the shaft sleeve according to the twelfth and thirteenth drawings. Z. The front edge of the annular body 22 of the shaft sleeve 20 is convexly provided with two second gears and the two baffles 28 have the same vertical position. The bearing housing 42 of the optical machine 40 is provided with two positioning grooves 46; two cards are convexly arranged at the rear edge of the ring-shaped body 22, and the vertical positions of the two card hook portions 29 are the same, so that the shaft sleeve 20 is installed in the season After the bearing 42 is inside, the shaft sleeve 20 uses an elastically expanded body to combine with the bearing = inner wall to restrict the movement in the X and γ directions, and the stopper 28 restricts the movement of the shaft in the axial direction Z and the rotation direction M. And using the hook portion 29 to limit the axial movement, through the elastic outer body of the shaft sleeve 20, with the front and rear edges = a baffle 28 and the hook The design of 29 can fix the shaft sleeve 20 in the bearing housing 30. Through the aforementioned coupling structure, the two shaft sleeves 20 are installed in the receiving grooves on the two ends of the main bearing 42 of the optical machine 40, and The light machine 40 and the guide rod 30 are assembled together, that is, as shown in the fourteenth figure, the entire assembly of the light machine 40 is completed, so that the inner wall of the body 22 of the shaft sleeve 20 and the guide rod 30 form more than three points. Contact, so that the optical machine 40 can slide smoothly and smoothly on the guide rod 30 through the shaft sleeve 20. Therefore, 'this creation by designing the shaft sleeve to be c-shaped, the opening contact point and the center of the guide rod The included angle is less than 80 degrees, so that after being installed on a light machine, the shaft sleeve can be separately confined to the guide rod, so that the light machine passes through the shaft sleeve and a guide

M249379 on the 12th, in accordance with the purpose of the space and assembly of the optical machine, and at the same time, it is limited to the design of the shaft and the optical bearing structure on the guide rod. The elasticity of the structure can be understood by the speaker of the embodiment. Therefore, any equivalent modification or modification of the bushing IV. Creation instructions (9) Steady lowering of the overall component occupying on the rod and improving the assembly of the precision bushing cannot be effectively designed, this creative type has the above-mentioned Description of the drawings in the patent scope completed by the professional spirit of technical book creation: 10, 10, 14 optical machine 16 housing 2 0 bushing 24 opening 28 baffle 3 30 guide rod 4 2 bearing seat 4 6 positioning groove bearing seat The design tolerances of the openings can be used to improve the conventional use problems; in addition, the advantages can be improved through the combination. The content of the characteristics of this creation and the facts are based on the fact that other 'separate from the creation' should still be included, effectively reducing the size and miniaturization for a long time to make this C-type sleeve outside the sleeve, the purpose is to apply, not Limitation as described below: 12 guide rods 1 4 2 bearing parts 1 8 wear-resistant sheet / lubricating sheet 22 ring-shaped body 26 coating / sliding sheet 29 hook part 40 light machine 44 opening 50 housing Page 13 Two schematic diagrams of different bearing structures In the bearing structure, the M249379 diagrams are briefly explained. The first (a) to the first (c) are the schematic diagrams of three known bushing sets. The second (a) diagram and the second (b) diagram are the component dimension drawings of the conventional bearing structure. The third figure is a schematic diagram of another conventional shaft sleeve. The second (a) diagram is a partially enlarged schematic diagram of the third diagram. The fourth figure is a cross-sectional view of one embodiment of the creative sleeve. Figures 5 (a) to 5 (c) are schematic diagrams of the three positions of the shaft sleeve of the creation in the optical machine. — The sixth (a) and sixth (b) pictures are the two bearing structures and scales of the creation. The seventh picture is a sectional view of another embodiment of the creative shaft sleeve. The eighth (a) and eighth (b) pictures are other ninth (a) to ninth (c) pictures of the creative shaft sleeve. The tenth (a) to tenth (c) drawings of the various shafts are schematic diagrams of the shaft sleeves in the limited direction of the creation. The eleventh figure is another embodiment of the creative sleeve. The twelfth figure is a schematic diagram of the assembly of the shaft sleeve and the optical machine in the creation. The eleventh figure is a partially enlarged schematic diagram of the twelfth figure. The fourteenth figure is a schematic example of the installation after the assembly of the shaft sleeve, the optical machine, and the guide rod are completed. Illustration. Each

Claims (1)

M249379 5. Scope of patent application 1. A bushing is provided to be installed in a bearing structure as a transmission guide interface for the shaft structure to slide along a guide rod. The bushing includes an annular body and the ring. The shaped body is provided with an opening to cover the guide and cover the guide rod beyond its semicircle, and the center of the opening and the guide rod is less than 180 degrees, thereby enabling the bearing structure to stably follow the sleeve through the shaft sleeve. The guide slides. 22: The sleeve described in item i of the patent scope, wherein the sleeve is integrally formed, and the material is lubricating. 3. The bushing according to item 丨 in the scope of patent application, wherein the bushing is selected from the group consisting of powder metallurgy oil-containing bushings, plastic-molded bushings and Teflon (Polytetraf luoroethylene, pTFE) materials. Run one of the sleeves. 4. The bushing according to item 丨 in the scope of the patent application, wherein the bushing is composed of the ring, the body and a lubricating layer combined with its inner side. 5. The bushing according to item 丨 in the scope of patent application, wherein the bushing is composed of the ring-shaped body and an abrasion-resistant layer combined with its inner side. 6 · The bushing according to item 1 of the scope of patent application, wherein the contact between the bushing and the guide rod is a multi-point contact of more than 3 points. 7. The bushing described in item 1 of Shenyue's patent scope, wherein the coupling manner between the bushing and the bearing structure is tightly combined by interference fit. 8. The shaft sleeve described in item 1 of the scope of the patent application, wherein a number of stops # are convexly arranged toward the centrifugal direction at the side periphery of the body of the shaft sleeve, so that the shaft θ ^ ^ bearing structure is combined , Use these baffles to limit the movement of the sleeve in its axial and rotation directions. Page 15 M249379 V. Application for patent scope 9. The bushing as described in item No. of the scope of patent application, wherein the side periphery of the annular body is further provided with _ + 6 u @ & μ mobile. -Yes- The hook part to limit the shaft sleeve to its 10. 10. As for the scope of patent application! The sleeve according to the item, wherein the Shao bearing structure is a bearing portion of a light machine for capturing images. 11 · A bearing structure applied to a transmission guide interface of a sliding device along a guide rod, the bearing structure includes:-a bearing seat, which is provided with-a receiving groove, the bearing seat is provided on the sliding device, The sliding device is slid through the bearing seat sleeve on the guide rod; and two sleeves outside the mouthpiece / mouthpiece, each sleeve is provided with an opening in a ring-shaped body, and the two ims are mounted on the The two ends of the accommodating slot are arranged outside the guide rod, covering the guide rod beyond its semicircle, so that the angle between the opening and the center of the center of the guide rod is 3 °, and the two shaft sleeves are used as The bearing seat slides on the transmission guide interface of the guide rod 1 to make the sliding device slide stably. The bearing structure described in item 11 of the Λ Lee range, the + and ㈣ fen systems are integrally formed, and the material is lubricating. As described in the above, the inner side of the bearing is smooth-smooth ^ ^ The sleeve is passed by Vr Λ The vehicle bearing structure according to item 11, wherein the shaft is constituted by the Shen ΛΛ body and the inner-wear-resistant layer combined with it. b • As described in item 11 of the scope of the patent application, Chengmei Yan Ganshi — 1 The contact between the 6-shaft sleeve and the guide rod is more than 3 points: type contact. ’Mother a wheel bearing as described in item η of the application scope 16 Page 16 M249379 5. Scope of patent application The combination of the sleeve and the bearing seat is tightly combined by interference fit. 17. The bearing structure according to item 丨 丨 in the scope of the patent application, wherein a plurality of blocking pieces are protruded toward the centrifugal direction on the side peripheral edge of the annular body of the shaft sleeve, so that the shaft sleeve is combined with the bearing seat. Later, the shaft sleeve is restricted from moving in its axial and rotational directions. Among them, in order to limit the shaft, the shaft among them, the sliding among them, the application of 18 · the bearing body bushing as described in the scope of the patent application No. 11 of the annular body of the ring body is provided with two The hook portion is sleeved to move in the axial direction. 19. The receiving groove of the bearing structure bearing according to item 11 of the scope of patent application is an opening. 2 0 The bearing structure according to item 11 of the scope of patent application is a light machine for capturing images. 21. The bearing structure according to item 20 of the scope of the patent application ... The device of the optical machine is at least one selected from the group consisting of a scanning device, a photocopying device and a facsimile device. 22. The vehicle bearing structure according to item ^ of the patent application scope, wherein the sliding device is a wedge set of printing heads in a printing device. Η Page 17