CN2482152Y

CN2482152Y - Scanning module transmission

Info

Publication number: CN2482152Y
Application number: CN 01218626
Authority: CN
Inventors: 苏坤和; 刘金德
Original assignee: Silitek Corp
Current assignee: Lite On Technology Corp
Priority date: 2001-04-18
Filing date: 2001-04-18
Publication date: 2002-03-13
Anticipated expiration: 2011-04-18

Abstract

The utility model discloses a scanning module transmission mechanism in order to provide a scanner part which can keep the tension force of a driving belt, has good performance in service and has low cost and the utility model comprises a drive gear, a driven gear, a driving belt meshed with the drive gear and the driven gear, a left rigid frame, a right rigid frame, and a rigid component. The drive gear and the driven gear are pivoted on the left rigid frame and the right rigid frame through a central axle in unchangeable relative position shape; the left end and the right end of the rigid component are respectively fixed and assembled with the left rigid frame and the right rigid frame.

Description

The scan module gear train

The utility model belongs to scanner components, particularly a kind of scan module gear train.

(multiple function peripherals MFP) is the outfit of present office necessity for scanner (scanner) or multifunctional access jaws equipment.It can be Graphic Documentation with picture, literal and photo scanning that these scannings are equipped with.Yet for save cost and attractive in appearance on consider, bases that these scannings are equipped with are made with plastic material mostly.

There are many shortcomings in the base of plastic material.One, plastic material becomes easy deformation under the bigger situation of scope in temperature.Scanner or multifunctional access jaws equipment transport or use in be difficult to avoid variation of temperature sometimes, so product must be surveyed to guarantee quality by ring before dispatching from the factory.Generally speaking, the temperature range that ring is surveyed is at-40 ℃ to+70 ℃, and following in the big temperature difference like this, the plastic material major part all has serious deformation, makes base can't keep level.Its two, the not anti-collision of plastic material.Scanning is provided in carrying and the use and has crash scenario sometimes, may cause the base distortion, and then influence scans the function that is equipped with.

As shown in Figure 1, the driving gear 11 of the gear train of known scanner is directly to be connected with plastic feet 14 with driven gear 12, and driving-belt 13 then meshes with driving gear 11 and driven gear 12.Scan module is connected with driving-belt 13 with a connecting elements.When driving-belt 13 is driven by driving gear 11, can drive scan module and produce displacement.Be provided with the guide rails 15 of rigid member on the plastic feet 14 in addition, scan module be able to along the axial advancement of guide rails 15, and keep certain orientation as scan module.

Because the driving gear 11 and the driven gear 12 of known scanner directly are connected with plastic feet 14, when plastic feet 14 deforms, can influence the relative position of driving gear 11 and driven gear 12, and then influence the tension force of driving-belt 13.Yet, plastic feet 14 is changed into the problem of using metal material can cause cost increase and portability, aesthetic property aspect again.

The purpose of this utility model provides a kind of belt tension, usability is good, cost is low scan module gear train of keeping.

The utility model comprise driving gear, driven gear, with driving-belt, left rigid mount, right rigid mount and rigid member main, the driven gear engagement; Main, driven gear is the constant shape of relative position with central shaft respectively and is hubbed on the left and right rigid mount; The left and right end of rigid member respectively with the fixedly winding of left and right rigid mount.

Wherein:

Sheathed on the rigid member along the axially movable scan module of rigid member.

Driving-belt is provided with adjusts driving-belt to possess the tension adjustment assembly of suitable tension force.

The rigid member left end is provided with by the groove that is fixed in the buckle mode on the left rigid mount.

The rigid member right-hand member is provided with by the groove that is fixed in the buckle mode on the right rigid mount.

The tension adjustment assembly is a spring.

With the left and right end of rigid member fixedly the left and right rigid mount of winding be fixed on the scanner base.

With the left and right end of rigid member fixedly the left and right rigid mount of winding be fixed on the base of multifunctional access jaws equipment.

Since the utility model comprise driving gear, driven gear, with driving-belt, left rigid mount, right rigid mount and rigid member main, the driven gear engagement; Main, driven gear is the constant shape of relative position with central shaft respectively and is hubbed on the left and right rigid mount; The left and right end of rigid member respectively with the fixedly winding of left and right rigid mount.Even plastic feet Yin Wendu or external force and be out of shape, driving gear and driven gear are because of being subjected to the effect of rigid member, and its relative position still can remain unchanged, and by the tension adjustment assembly, still can keep driving-belt to possess suitable tension force after the base distortion.Not only keep belt tension, usability good, and cost is low, thereby reaches the purpose of this utility model.

Fig. 1, establish known scan module gear train scanner structure schematic isometric for group.

Fig. 2, be the utility model structural representation stereographic map.

Fig. 3, be A portion partial enlarged drawing among Fig. 2.

Fig. 4, be B portion partial enlarged drawing among Fig. 2.

Fig. 5, establish scanner structure schematic isometric of the present utility model for group.

Fig. 6, be C portion partial enlarged drawing among Fig. 5.

Fig. 7, be D portion partial enlarged drawing among Fig. 5.

Below in conjunction with accompanying drawing the utility model is further elaborated.

As shown in Figure 2, the utility model comprises left rigid mount 111, right rigid mount 112, driving gear 113, driven gear 114, driving-belt 115 and rigid member 116.

Left and right rigid mount 111,112 is can prevent that the rigid material that is out of shape from making.As shown in Figure 3, left rigid mount 111 extends the support 1111 with joining hole up.As shown in Figure 4, right rigid mount 112 extends the support 1121 with joining hole up.

Driving gear 113 is the constant shape pivot of relative position on left rigid mount 111 with central shaft, and is connected with motor.

Driven gear 114 is the constant shape pivot of relative position on right rigid mount 112 with central shaft.

Endless belt 115 connects driving gear 113 and driven gear 114.Have on the driving-belt 115 with driving gear 113 and driven gear 114 and mesh to prevent the groove of its slip.

As Fig. 2, shown in Figure 5, driving-belt 115 is provided with the tension adjustment assembly 117 into spring.When driving-belt 115 relaxes because of temperature, external force or elastic fatigue, can adjust driving-belt 115 by tension adjustment assembly 117 in good time, make driving-belt 115 possess suitable tension force to bring into play its function.

As shown in Figure 3, rigid member 116 left ends are established support 1111 thickness and the corresponding groove of joining hole that extends with left rigid mount 111 up; As shown in Figure 4, rigid member 116 right-hand members are established support 1121 thickness and the corresponding groove of joining hole that extends with right rigid mount 112 up.

Rigid member 116 passes respectively in support 1111,1121 joining holes that left and right rigid mount 111,112 extends up with its left and right end groove, mode with buckle is connected with left and right rigid mount 111,112, not only escapable cost, the difficulty when lowering production in the assembling also can keep the relative position between left and right rigid mount 111,112 and rigid member 116 left and right ends to fix respectively simultaneously.

During the utility model action, motor reaches driving gear 113 with power, and then drives driving-belt 115 motions, and driven gear 114 is the usefulness as guiding driving-belt 115.And as the master, when driven gear 113,114 rotates, its central shaft relative position with respect to left and right rigid mount 111,112 respectively is constant.

As shown in Figure 5, as shown in Figure 6 that left and right rigid mount 111,112 and base 118 is affixed when 119 groups of the utility model and scanner base 118 and scan modules are established, make 118 of left and right rigid mount 111,112 and bases can not produce relative displacement.Because the left and right end of rigid member 116 is connected with left and right rigid mount 111,112 in the mode of buckle simultaneously, therefore even plastic feet 118 is out of shape because of temperature or external force, driving gear 113 and driven gear 114 are because of being subjected to the effect of rigid member 116, and its relative position still can remain unchanged.

As shown in Figure 5, the rigid member 116 that connects left rigid mount 111 and right rigid mount 112 can be used to the guide rail as scan module 119.The guide rail of scan module 119 is used for not only saving cost as the rigid member 116 of keeping

driving gear

113 and 114 relative positions of driven gear, and easy to assembly.Even base 118 is out of shape because of temperature or external force, rigid member 116 still can make the driving gear 113 and the relative position of driven gear 114 keep fixing, and, after base 118 distortion, still can keep driving-belt 115 to possess suitable tension force by tension adjustment assembly 117.

The rigid member 116 any member that all metal materials are made of can serving as reasons with suitable rigidity.Tension adjustment assembly 117 can be spring, also can be any rubber-like flexible member, is not limited to spring.Rigid member 116 two ends system is connected with left and right rigid mount 111,112 respectively in the buckle mode, can also connect or other any connected mode connection by screw.

The utility model system is out of shape the driving gear 113 and driven gear 114 transposition problems that is caused in order to solve base 118, and can solve driving-belt 115 because of the oversize problem that gets loose that causes of temperature, external force and service time.Be noted that the utility model can be applicable to the transmission of scanner, office's multifunctional access jaws equipment or miscellaneous equipment.

Claims

1, a kind of scan module gear train, it comprises driving gear, driven gear and the driving-belt that meshes with master, driven gear; It is characterized in that described master, driven gear are the constant shape of relative position with central shaft respectively and are hubbed on the left and right rigid mount; Be provided with between the left and right rigid mount left and right end respectively with the fixing rigid member of winding of left and right rigid mount.

2, scan module gear train according to claim 1 is characterized in that on the described rigid member sheathed along the axially movable scan module of rigid member.

3, scan module gear train according to claim 1 is characterized in that described driving-belt is provided with the adjustment driving-belt to possess the tension adjustment assembly of suitable tension force.

4, scan module gear train according to claim 1 is characterized in that described rigid member left end is provided with by the groove that is fixed in the buckle mode on the left rigid mount.

5, scan module gear train according to claim 1 is characterized in that described rigid member right-hand member is provided with by the groove that is fixed in the buckle mode on the right rigid mount.

6, scan module gear train according to claim 3 is characterized in that described tension adjustment assembly is a spring.

7, scan module gear train according to claim 1, it is characterized in that described and the left and right end of rigid member fixedly the left and right rigid mount of winding be fixed on the scanner base.

8, scan module gear train according to claim 1, it is characterized in that described and the left and right end of rigid member fixedly the left and right rigid mount of winding be fixed on the base of multifunctional access jaws equipment.