TWI453348B - Damper and multifunction printer using the same - Google Patents

Description

Damper and transaction machine using the damper

The present invention relates to a damper and a transaction machine, and more particularly to a damper for causing a side cover of a transaction machine to descend relative to a base and a transaction machine using the damper.

1 is a schematic diagram of a conventional transaction machine, and FIG. 2 is a partial enlarged view of the transaction machine of FIG. 1. Please refer to FIG. 1 and FIG. 2 at the same time. In the conventional transaction machine, the damping gear set is used to achieve the effect of slowing down the side cover relative to the base. The current damper gear set is nothing more than the use of damping grease, spring or oil pressure damping as a source of internal damping energy. In detail, the side cover 10 is connected to the rotating shaft 20 and controls the pressing piece 30 against the gear 40. The structure of the cover plate 50 is used to restrict the movement of the gear 40, and the cover plate 50 is provided with damping grease for absorbing the tablet. 30 is transmitted to the force of the gear 40 to achieve a slow down of the side cover 10 relative to the base 80 of the transaction machine.

The present invention provides a damper having a structure different from that of the prior art.

The present invention provides a transaction machine that uses the above-described damper different in structure from the conventional one, and can also achieve the effect of slowing down the side cover relative to the base.

The invention provides a damper comprising a positioning seat, a spring piece, a transmission shaft and a cam. The positioning seat is fixed to the base, and the elastic piece has a first end and a second end, wherein the first end is fixed to the positioning seat. pass The moving shaft is disposed between the side cover and the base, and the cam sleeve is disposed on the transmission shaft and located between the side cover and the base. The cam has a curved surface, and the second end of the elastic piece interferes with the curved surface.

In an embodiment of the invention, the drive shaft has an outer surface and a plurality of first tooth structures disposed on the outer surface, and the cam has an inner surface and a plurality of second tooth structures disposed on the inner surface, And the first tooth structure and the second tooth structure are in mesh with each other.

In an embodiment of the invention, the drive shaft has a D-shaped cross section, and the cam has a D-shaped through hole, and the through hole penetrates the cam in the axial direction of the cam.

In one embodiment of the invention, the second end is C-shaped and the camber of the cam is located in the second end.

In an embodiment of the invention, a plurality of fasteners that are locked into the base through the positioning block are further included.

In one embodiment of the invention, the second end of the spring is deformed along the contour of the cam as the cam rotates relative to the second end of the spring.

In an embodiment of the invention, the damping coefficient of the damper changes depending on the material of the cam and the material of the elastic piece.

In one embodiment of the invention, the damping coefficient of the damper varies depending on the size of the contact area between the cam surface of the cam and the second end of the spring.

The invention further provides a transaction machine comprising a base, a side cover and a damper of any of the above embodiments. One end of the side cover is connected to a side wall of the base and is adapted to open relative to the base, and the damper is disposed in the base to be adapted to slow down the side cover when the side cover is opened relative to the base.

In an embodiment of the transaction machine of the present invention, an upper cover disposed above the base is further included.

Based on the above, the present invention provides a damper having a structure different from that of the conventional damper, and the damper is applied to the transaction machine, and the purpose of slowing down the side cover relative to the base can still be achieved.

The above described features and advantages of the present invention will be more apparent from the following description.

3 is an exploded perspective view of a damper and a transaction machine using the damper, and FIG. 4 is a partially enlarged schematic view of the transaction machine of FIG. The transaction machine 100 includes a base 110, a side cover 120, a damper 130, and an upper cover 140. The upper cover 140 is disposed above the base 110, the side cover 120 is disposed on the side wall 112 of the base 110, and the damper 130 is disposed in the base 110 and connected between the side cover 120 and the base 110 to enable the side The cover 120 can be opened relative to the base 110 by the damper 130. The damper 130 includes a positioning seat 132, a spring piece 134, a transmission shaft 136, and a cam 138. The positioning seat 132 is fixed to the base 110, and the elastic piece 134 has a first end 134a and a second end 134b, and the first end 134a is fixed to the positioning seat 132. The transmission shaft 136 is disposed between the side cover 120 and the base 110. Therefore, the side cover 120 is opened relative to the base 110 by using the transmission shaft 136 as a rotation axis. The cam 138 that is in mesh with the drive shaft 136 and located between the side cover 120 and the base 110 has a curved surface 138a, and the second end 134b of the elastic piece 134 interferes with the curved surface 138a. Due to the second of the shrapnel 134 The end 134b interferes with the cam surface 138a of the cam 138 to allow the side cover 120 to slowly lower as the side cover 120 is rotated and opened relative to the base 110.

In detail, the drive shaft 136 of the present embodiment has an outer surface 136a and a plurality of first tooth structures 136b disposed on the outer surface 136a, and the cam 138 has an inner surface 138b and a plurality of disposed inner surfaces 138b. The second tooth structure 138c, and the first tooth structure 136b and the second tooth structure 138c are in mesh with each other. In this way, the cam 138 can be in good engagement with the drive shaft 136; that is, the angle of rotation of the cam 138 is synchronized with the angle of rotation of the drive shaft 136.

In another embodiment, the drive shaft 136' has a cross-sectional shape that is D-shaped, and the cam 138' has a D-shaped through hole, and the through hole penetrates the cam 138' in the axial direction of the cam 138'. The shape of the cross section of the transmission shaft 136' is the same as the shape of the through hole of the cam 138'. It is also possible to achieve a close coupling relationship between the transmission shaft 136' and the cam 138', so that the rotation angle of the cam 138' and the transmission shaft 136. 'The angle of rotation is synchronized, as shown in Figure 5.

In addition, the damper 130 may further include a plurality of fasteners 139, and the fastener 139 of the embodiment is a screw, and the fastener 139 is used to pass through the positioning seat 132 and lock into the base 110 to fix the positioning seat 132 and The relative position of the base 110.

Figure 6 is a schematic view showing the side cover of the transaction machine of Figure 4 opened relative to the base. Referring to FIG. 3, FIG. 4 and FIG. 6 simultaneously, when the side cover 120 is rotated relative to the base 110 to open, one side (not labeled) of the side cover 120 is connected to the base 110 by the transmission shaft 136 of the damper 130. Therefore, the other side of the side cover 120 relatively away from the base 110 is opposite to the base 110 with the transmission shaft 136 as a rotation axis. Open. In particular, in response to the shape of the cam 138, when the gravity of the side cover 120 causes the drive shaft 136 to rotate in the counterclockwise direction, the cam 138 is rotated by the drive shaft 136 to rotate relative to the second end 134b of the elastic piece 134. At this time, the second end 134b of the elastic piece 134 that is in contact with the curved surface 138a of the cam 138 is deformed along the contour of the cam 138, so that the second end 134b continuously contacts the curved surface 138a of the cam 138. While the cam 138 is rotated relative to the second end 134b, the friction between the second end 134b and the cam surface 138a of the cam 138 slows down the rotational speed of the drive shaft 136 that is driven by the weight of the side cover 120.

The speed at which the side cover 120 rotates relative to the base 110 to open is related to the friction between the curved surface 138a of the cam 138 and the second end 134b of the elastic piece 134, thereby affecting the damping coefficient of the damper 130, and the frictional force is again It is related to the material of the cam 138 and the elastic piece 134. In general, if the friction between the curved surface 138a of the cam 138 and the second end 134b of the elastic piece 134 is smaller, the speed at which the side cover 120 is opened relative to the base 110 is faster; otherwise, the curved surface 138a of the cam 138 and the elastic piece The greater the friction between the second ends 134b of the 134, the slower the opening of the side cover 120 relative to the base 110, and the slower the side cover 120 is lowered relative to the base 110.

Figure 7 is a schematic illustration of another embodiment of the second end. Referring to FIG. 7, in the present embodiment, the shape of the second end 134b" is changed to be C-shaped, and the cam 138" is located in the second end 134b". Due to the curved surface 138a" and the second end 134b of the cam 138" "The contact area between the two increases, so the friction between the curved surface 138a" of the cam 138" and the second end 134b" also increases, in other words, the damping coefficient of the damper 130 (shown in Fig. 3) is also followed. Increase. Therefore, by changing the contact area between the curved surface 138a" of the cam 138" and the second end 134b", the damping coefficient of the damper 130 (shown in FIG. 3) can be changed, thereby adjusting the side cover 120 (shown in FIG. 4). The speed at which the base 110 (shown in Figure 4) is rotated open.

As described above, the present invention provides a damper having a structure different from that of the conventional damper, and although the structure is different, the damper provided by the present invention is applied to a transaction machine, and the side of the transaction machine can still be achieved. The cover is lowered relative to the base. Moreover, compared with the damper which is conventionally used in a transaction machine, the constituent elements of the damper provided by the present invention have the advantages of relatively simple shape, easy manufacture and acquisition, and the like, so that the transaction machine using the damper can be effectively reduced. Component cost.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

10, 120‧‧‧ side cover

20‧‧‧Rotary axis

30‧‧‧Control tablet

40‧‧‧ Gears

50‧‧‧ cover

80, 110‧‧‧ Pedestal

100‧‧‧Business Machine

112‧‧‧ side wall

130‧‧‧damper

132‧‧‧ Positioning Block

134‧‧‧Shrap

134a‧‧‧ first end

134b, 134b"‧‧‧ second end

136, 136'‧‧‧ drive shaft

136a‧‧‧ outer surface

136b‧‧‧First tooth structure

138, 138', 138" ‧ ‧ cam

138a, 138a"‧‧‧ curved surface

138b‧‧‧ inner surface

138c‧‧‧second tooth structure

139‧‧‧Locker

140‧‧‧Upper cover

1 is a schematic diagram of a conventional transaction machine.

Figure 2 is a partial enlarged view of the transaction machine of Figure 1.

3 is an exploded perspective view of a damper and a transaction machine using the same according to the present invention.

4 is a partially enlarged schematic view showing the assembly of the transaction machine of FIG. 3.

Figure 5 is a schematic illustration of another embodiment of a drive shaft and cam.

Figure 6 is a schematic view showing the side cover of the transaction machine of Figure 4 opened relative to the base.

Figure 7 is a schematic illustration of another embodiment of the second end.

100‧‧‧Business Machine

110‧‧‧Base

112‧‧‧ side wall

120‧‧‧ side cover

130‧‧‧damper

132‧‧‧ Positioning Block

134‧‧‧Shrap

136‧‧‧ drive shaft

136a‧‧‧ outer surface

136b‧‧‧First tooth structure

138‧‧‧ cam

138a‧‧‧ curved surface

138b‧‧‧ inner surface

138c‧‧‧second tooth structure

139‧‧‧Locker

140‧‧‧Upper cover

Claims (17)

A damper adapted to rotate and lower a side cover relative to a base, comprising: a positioning base fixed to the base; a resilient piece having a first end and a second end, wherein the first end Fixed to the positioning seat; a transmission shaft disposed between the side cover and the base; and a cam engaged with the transmission shaft and located between the side cover and the base, the cam having a a curved surface, and the second end of the elastic piece interferes with the curved surface. The damper of claim 1, wherein the transmission shaft has an outer surface and a plurality of first tooth structures, and the first tooth structures are disposed on the outer surface, and the cam has an inner portion. The surface and the plurality of second tooth structures, and the second tooth structures are disposed on the inner surface, and the first tooth structures are in mesh with the second tooth structures. The damper according to claim 1, wherein the transmission shaft has a D-shaped cross section, and the cam has a D-shaped through hole, and the through hole penetrates the cam along an axial direction of the cam. The damper of claim 1, wherein the second end is C-shaped and the cam is located in the second end. The damper of claim 1, further comprising a plurality of fasteners locked into the base through the positioning seat. The damper of claim 1, wherein the second end edge of the elastic piece is rotated when the cam is rotated relative to the second end of the elastic piece The contour of the cam is deformed. The damper according to claim 1, wherein the damping coefficient changes depending on the material of the cam and the material of the elastic piece. The damper according to claim 1, wherein the damping coefficient changes depending on the contact area of the curved surface of the cam and the second end of the elastic piece. A locating machine includes: a pedestal; a side cover, one end of which is connected to a side wall of the pedestal and adapted to be opened relative to the pedestal; a damper disposed in the pedestal, comprising: a positioning seat Fixed to the base; a resilient piece having a first end and a second end, wherein the first end is fixed to the positioning seat; a transmission shaft is disposed between the side cover and the base; A cam is sleeved on the transmission shaft and located between the side cover and the base. The cam has a curved surface, and the second end of the elastic piece interferes with the curved surface. The transaction machine of claim 9, wherein the drive shaft has an outer surface and a plurality of first tooth structures, and the first tooth structures are disposed on the outer surface, and the cam has an inner The surface and the plurality of second tooth structures, and the second tooth structures are disposed on the inner surface, and the first tooth structures are in mesh with the second tooth structures. For example, the transaction machine described in claim 9 of the patent scope, wherein the transmission The moving shaft has a D-shaped cross section, and the cam has a D-shaped through hole, and the through hole penetrates the cam along the axial direction of the cam. The transaction machine of claim 9, wherein the second end is C-shaped and the cam is located in the second end. The transaction machine of claim 9, further comprising a plurality of fasteners locked into the base through the positioning seat. The transaction machine of claim 9, wherein the second end of the elastic piece is deformed along a contour of the cam when the cam is rotated relative to the second end of the elastic piece. The transaction coefficient of the damper is changed according to the material of the cam and the material of the elastic piece, as described in claim 9. The damper has a damping coefficient that varies depending on the size of the contact area between the arc surface of the cam and the second end of the sprocket. The transaction machine of claim 9, further comprising an upper cover disposed above the base.