Recording device

Abstract

To provide a recording device that has a medium receiving tray which can be displaced between a first state and a second state.SOLUTION: A recording device 1 is provided with: a conveying roller 7; an ejecting roller 8; a medium receiving tray 5; a motor 6; a power transmitting part 100 that can take a power transmission state in which power of the motor 6 is transmitted from the motor 6 to the medium receiving tray 5 and a power non-transmission state in which power of the motor 6 is not transmitted from the motor 6 to the medium receiving tray 5; and a belt 10 wound around a conveying roller pulley 7a and an ejecting roller pulley 8a. The power transmitting part 100 is positioned between an outer end part of the conveying roller pulley 7a and an outer end part of the ejecting roller pulley 8a, in an ejecting direction.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a recording apparatus. [Background technology]

[0002] Some recording devices, such as facsimiles and printers, are equipped with a medium receiving tray that receives the medium discharged after recording. Some such medium receiving trays are configured to be switchable between a stored state and an expanded state by a motor, as shown in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-16480 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a conventional recording device having a medium receiving tray that can be switched between a stored state and an expanded state by a motor, such as that shown in Patent Document 1, or in other words, a conventional recording device having a medium receiving tray that can be displaced between a first state and a second state, the configuration of the mechanism that switches the medium receiving tray between the first state and the second state may become large. If this mechanism becomes large, there is a risk that the entire device will become large. [Means for solving the problem]

[0005] The recording device of the present invention, which solves the above problem, comprises a recording head mounted on a reciprocating carriage and performs recording on a medium, a transport roller for transporting the medium, a discharge roller for discharging the medium after recording, and a medium receiving tray for receiving the medium discharged by the discharge roller, the medium receiving tray being capable of taking a first state and a second state displaced from the first state in the direction in which the medium is discharged, a motor which is a power source for the discharge roller, a power transmission unit which is capable of taking a power transmission state in which the power of the motor is transmitted from the motor to the medium receiving tray and a power non-transmission state in which the power of the motor is not transmitted from the motor to the medium receiving tray, a transport roller pulley provided on the transport roller, and a discharge roller pulley provided on the discharge roller, and a belt which is wrapped around the transport roller pulley and the discharge roller pulley, and the power transmission unit is located between the outer end of the transport roller pulley and the outer end of the discharge roller pulley in the discharge direction.

[0006] Another recording device of the present invention that solves the above problem comprises a recording head mounted on a reciprocating carriage and recording on a medium, a transport roller that transports the medium, an ejection roller that ejects the medium after recording, and a medium receiving tray that receives the medium ejected by the ejection roller, the medium receiving tray being capable of taking a first state and a second state displaced from the first state in the ejection direction of the medium, a motor that is a power source for the ejection roller, a power transmission unit that is capable of taking a power transmission state in which the power of the motor is transmitted from the motor to the medium receiving tray and a power non-transmission state in which the power of the motor is not transmitted from the motor to the medium receiving tray, and a switching lever unit that switches between the power non-transmission state and the power transmission state, the power transmission unit having a power switching mechanism that is switched between the power non-transmission state and the power transmission state by the switching lever unit, and the power switching mechanism is located between an outer end of the motor and an outer end of the transport roller in the ejection direction. [Brief description of the drawings]

[0007] [Figure 1] 1 is a schematic diagram of a recording apparatus according to an embodiment of the present invention. [Diagram 2] 2 is a side cross-sectional view showing the internal configuration of the recording apparatus of FIG. 1, with a part of it being enlarged. FIG. [Diagram 3] 2 is a plan sectional view showing the internal configuration of the recording device in FIG. 1, partially enlarged and at a different angle. [Figure 4] FIG. 2 is a plan sectional view showing the periphery of a power transmission unit of the recording apparatus shown in FIG. [Diagram 5] FIG. 2 is a plan sectional view showing the periphery of a power transmission unit of the recording device in FIG. 1, with the motor omitted. [Figure 6] 2 is a side cross-sectional view showing the periphery of a power transmission unit of the recording apparatus shown in FIG. 1. [Figure 7] FIG. 2 is a perspective view showing a power transmission unit and a motor of the recording apparatus shown in FIG. [Figure 8] 2 is a perspective view showing the power transmission unit and the carriage of the recording device in FIG. 1, in which the carriage is on the power transmission unit side within its reciprocating range and the switching lever unit is in a non-contact position; FIG. [Figure 9] 2 is a perspective view showing the power transmission unit, carriage, and medium receiving tray of the recording device in FIG. 1, in which the carriage is on the power transmission unit side within its reciprocating range and the switching lever unit is in a contact position. FIG. [Figure 10] 2 is a perspective view showing the power transmission unit, carriage, and medium receiving tray of the recording device in FIG. 1, in which the carriage is at a home position on the opposite side to the power transmission unit within its reciprocating range. FIG. [Figure 11] 2 is a perspective view of the power transmission unit of the recording device in FIG. 1, showing a state in which a switching lever unit is in a contact position. FIG. [Figure 12] 12 is a perspective view of the power transmission section of the recording apparatus in FIG. 1, seen from an angle different from that of FIG. 11, illustrating a state in which the switching lever section is in a non-contact position. [Figure 13] 2 is a perspective view showing a state in which a switching lever portion of the recording device in FIG. 1 is shifted from a non-contact position to a contact position. [Figure 14]2 is a perspective view showing a state in which the switching lever portion of the recording device in FIG. 1 moves from a non-contact position to a contact position, and the switching lever portion further slides; FIG. [Figure 15] 2 is a front cross-sectional view illustrating a state in which the switching lever portion of the recording device in FIG. 1 moves from a non-contact position to a contact position, and further illustrates a state in which the switching lever portion slides. [Figure 16] 2 is a perspective cross-sectional view showing a state in which the switching lever portion of the recording device in FIG. 1 moves from a non-contact position to a contact position, and further shows the switching lever portion sliding; FIG. [Figure 17] 2 is a perspective view showing the periphery of a lock component and a transmission component of the power transmission section of the recording apparatus in FIG. 1. [Figure 18] 17 is a perspective view of the periphery of a lock component and a transmission component of the power transmission unit of the recording apparatus in FIG. 1, as viewed from an angle different from that of FIG. 17. [Figure 19] 19 is a perspective view of the periphery of a lock component and a transmission component of the power transmission unit of the recording apparatus in FIG. 1, as viewed from an angle different from that of FIGS. 17 and 18. FIG. [Figure 20] 2 is a perspective cross-sectional view of the power transmission unit of the recording device in FIG. 1, showing a state in which a switching lever unit is in a contact position. FIG. [Figure 21] 2 is a perspective view showing the periphery of a friction gear of a power transmission portion of the recording apparatus in FIG. 1. [Figure 22] 2 is a perspective cross-sectional view showing the periphery of a friction gear of a power transmission portion of the recording apparatus in FIG. 1. [Figure 23] 2 is a perspective view showing the power transmission unit and carriage of the recording device in FIG. 1, illustrating the arrangement of the switching lever unit relative to the carriage when the carriage is on the power transmission unit side within its reciprocating range and the switching lever unit is in a non-contact position. FIG. [Figure 24] FIG. 24 is a diagram showing the switching lever portion of FIG. 23 omitted. [Diagram 25] FIG. 2 is a perspective view showing a unit having a power transmission section of the recording apparatus shown in FIG. [Figure 26] 2 is a perspective view of a unit having a power transmission section of the recording apparatus in FIG. 1 with a second frame omitted. [Figure 27]2 is a perspective view of a unit having a power transmission section of the recording apparatus in FIG. 1 with the power transmission section and a second frame omitted, that is, a perspective view showing a first frame. FIG. [Figure 28] 2 is a perspective view showing a main body frame to which a unit having a power transmission section of the recording apparatus shown in FIG. 1 is attached. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The present invention will first be briefly described below. In order to solve the above problem, a recording device according to a first aspect of the present invention comprises a recording head mounted on a reciprocating carriage and performing recording on a medium, a transport roller for transporting the medium, a discharge roller for discharging the medium after recording, and a medium receiving tray for receiving the medium discharged by the discharge roller, the medium receiving tray being capable of taking a first state and a second state displaced from the first state in the direction in which the medium is discharged, a motor which is a power source for the discharge roller, a power transmission unit capable of taking a power transmission state in which the power of the motor is transmitted from the motor to the medium receiving tray, and a power non-transmission state in which the power of the motor is not transmitted from the motor to the medium receiving tray, a transport roller pulley provided on the transport roller, and a discharge roller pulley provided on the discharge roller, and a belt which is wrapped around the transport roller pulley, and the power transmission unit is located between the outer end of the transport roller pulley and the outer end of the discharge roller pulley in the discharge direction.

[0009] According to this aspect, the power transmission unit is located between the outer end of the transport roller pulley and the outer end of the discharge roller pulley in the discharge direction. If the power transmission unit is located on the leading edge side of the discharge roller pulley in the discharge direction, the entire device will tend to protrude on the leading edge side in the discharge direction, and if the power transmission unit is located on the trailing edge side of the transport roller pulley in the discharge direction, the entire device will tend to protrude on the trailing edge side in the discharge direction. However, by arranging the power transmission unit in this way, the length of the entire recording device in the discharge direction can be shortened. Therefore, it is possible to miniaturize a recording device having a medium receiving tray that can be displaced between a first state and a second state.

[0010] A recording device according to a second aspect of the present invention is an aspect dependent on the first aspect, and is characterized in that the power transmission unit is located inside and closer to the center of the recording device in the direction of reciprocating movement of the carriage than the belt routing range.

[0011] According to this aspect, the power transmission unit is located closer to the center of the recording device than the belt routing range in the reciprocating direction of the carriage. If the power transmission unit is located outside the recording device in the reciprocating direction of the carriage than the belt routing range, the entire device tends to protrude in the reciprocating direction of the carriage, but this configuration makes it possible to shorten the overall length of the recording device in the reciprocating direction of the carriage. Therefore, it is possible to particularly reduce the size of a recording device having a medium receiving tray that can be displaced between a first state and a second state.

[0012] A recording device according to a third aspect of the present invention is an aspect dependent on the first or second aspect, and is characterized in that the power transmission unit is located around the motor when viewed from a direction along the reciprocating movement direction of the carriage.

[0013] According to this aspect, the power transmission unit is located around the motor when viewed from the direction along the reciprocating movement direction of the carriage. In other words, the power transmission unit is disposed to bypass the motor. This makes it possible to prevent the power transmission unit from interfering with the motor.

[0014] A recording device according to a fourth aspect of the present invention comprises a recording head mounted on a reciprocating carriage and performing recording on a medium, a transport roller for transporting the medium, an ejection roller for ejecting the medium after recording, and a medium receiving tray for receiving the medium ejected by the ejection roller, the medium receiving tray being capable of taking a first state and a second state displaced from the first state in the direction of ejection of the medium, a motor which is a power source for the ejection roller, a power transmission unit capable of taking a power transmission state in which the power of the motor is transmitted from the motor to the medium receiving tray and a power non-transmission state in which the power of the motor is not transmitted from the motor to the medium receiving tray, and a switching lever unit for switching between the power non-transmission state and the power transmission state, the power transmission unit having a power switching mechanism which is switched between the power non-transmission state and the power transmission state by the switching lever unit, and the power switching mechanism being located between an outer end of the motor and an outer end of the transport roller in the ejection direction.

[0015] According to this aspect, the power transmission unit has a power switching mechanism that can be switched between a power non-transmitting state and a power transmitting state by the switching lever unit, and the power switching mechanism is located between the outer end of the motor and the outer end of the transport roller in the discharge direction. If the power switching mechanism is located closer to the leading end of the motor in the discharge direction than the outer end of the motor, the entire device will tend to protrude toward the leading end in the discharge direction, and if the power transmission unit is located closer to the rear end of the transport roller in the discharge direction than the outer end of the transport roller, the entire device will tend to protrude toward the rear end in the discharge direction. However, by arranging the power switching mechanism in this way, the length of the entire recording device in the discharge direction can be shortened. Therefore, it is possible to reduce the size of a recording device having a medium receiving tray that can be displaced between a first state and a second state.

[0016] A recording device according to a fifth aspect of the present invention is an aspect dependent on the fourth aspect, and is characterized in that the power switching mechanism overlaps with the motor in at least one of the directions of reciprocating movement of the carriage and an intersecting direction that intersects both the ejection direction and the reciprocating movement direction of the carriage.

[0017] According to this aspect, the power switching mechanism overlaps with the motor in at least one of the reciprocating direction of the carriage and the intersecting direction, so that the power switching mechanism can be efficiently disposed with respect to the motor in at least one of the reciprocating direction of the carriage and the intersecting direction, and a recording device having a medium receiving tray that can be displaced between a first state and a second state can be particularly miniaturized.

[0018] A recording device according to a sixth aspect of the present invention is an aspect dependent on the fourth or fifth aspect, and is characterized in that the power switching mechanism overlaps with the final stage of the drive gear train of the power transmission unit in a cross direction that intersects both the ejection direction and the reciprocating movement direction of the carriage.

[0019] According to this aspect, the power switching mechanism overlaps with the final stage of the drive train of the power transmission unit in the intersecting direction that intersects both the ejection direction and the reciprocating direction of the carriage. Therefore, the power switching mechanism can be efficiently disposed with respect to the drive train of the power transmission unit in the intersecting direction, and the recording device having a medium receiving tray that can be displaced between a first state and a second state can be particularly miniaturized.

[0020] A recording device 1 according to an embodiment of the present invention will be specifically described below with reference to Figs. 1 to 28. In the following description, three mutually orthogonal axes are designated as the X-axis, Y-axis, and Z-axis, as shown in each figure. The Z-axis direction corresponds to the vertical direction, i.e., the direction in which gravity acts. The X-axis and Y-axis directions correspond to the horizontal direction. In each figure, the directions indicated by the arrows of the three axes (X, Y, Z) are the + directions of each direction. For example, the X-axis direction corresponds to the reciprocating movement direction of the carriage 3, the +X direction corresponds to the side where the power transmission unit 100 is provided, and the -X direction corresponds to the home position side of the carriage 3. The +Y direction corresponds to the ejection direction of the medium receiving tray 5.

[0021] As shown in Fig. 1, the recording device 1 of this embodiment includes a housing 2. A front cover 2a is provided as a part of the housing 2. The recording device 1 of this embodiment can be displaced from the left side of Fig. 1 to the right side of Fig. 1, and specifically, the medium receiving tray 5 is configured to be switchable between a first state, which is a stored state, and a second state, which is an expanded state, by a motor 6 shown in Fig. 2 and the like.

[0022] Here, the recording device 1 of this embodiment includes, inside the housing 2, a carriage 3 that reciprocates along the X-axis direction as shown in Figures 9 and 10, and a recording head 4 that is mounted on the carriage 3 and records on a medium as shown in Figures 23 and 24. The recording device 1 of this embodiment also includes, inside the housing 2, a transport roller 7 that transports the medium, and a discharge roller 8 that discharges the medium on which recording has been performed, as shown in Figure 2, etc. The recording device 1 of this embodiment also includes, inside the housing 2, a medium receiving tray 5 that receives the medium discharged by the discharge roller 8 as shown in Figures 9 and 10, etc., and a motor 6 that is a power source for the transport roller 7 and the discharge roller 8 as shown in Figure 2, etc.

[0023] Power is transmitted from the motor 6 to the transport roller 7 and the discharge roller 8 as follows. As shown in FIG. 6, a motor pulley 6a is attached to the motor 6. A belt 10 is stretched around the motor pulley 6a, and the belt 10 is wound around a transport roller pulley 7a provided on the transport roller 7, a discharge roller pulley 8a provided on the discharge roller 8, and a pulley 9. The motor 6 also rotates its rotating shaft, causing the motor pulley 6a to rotate, which in turn causes the belt 10 to rotate, and the transport roller 7 and the discharge roller 8 to rotate in conjunction with the rotation of the transport roller pulley 7a and the discharge roller pulley 8a. As shown in FIG. 7 and FIG. 12, the transport roller 7 is provided with an encoder 7b that measures the rotation of the transport roller 7.

[0024] As described above, the medium receiving tray 5 can be in a first state, which is a stored state, and a second state, which is an expanded state displaced from the first state in the direction in which the medium is discharged. Furthermore, the recording device 1 of this embodiment includes a power transmission unit 100 inside the housing 2, as shown in FIG. 2 and the like. Here, the power transmission unit 100 can be in a power transmission state in which the power of the motor 6 is transmitted from the motor 6 to the medium receiving tray 5, and a power non-transmission state in which the power of the motor 6 is not transmitted from the motor 6 to the medium receiving tray 5.

[0025] Here, the power transmission unit 100 will be described. As shown in Figs. 7 to 12, the power transmission unit 100 has a gear 101 that engages with the transport roller pulley 7a. The gear 101 engages with a gear 102, and a locking component 103 that is a D-shaped gear and a transmission component 104 that is a gear are provided on a rotation axis 102a of the gear 102. The rotation axis 102a of the gear 102, the locking component 103, and the transmission component 104 is in the direction along the X-axis direction, and the locking component 103 and the transmission component 104 are configured to be movable together along the X-axis direction by a power switching mechanism 120. The details of the power switching mechanism 120 will be described later, but the locking component 103 is configured not to rotate by interfering with a holding member 123 that constitutes a part of the power switching mechanism 120, and the transmission component 104 is configured to rotate with the rotation of the gear 102.

[0026] 7 to 12, the power transmission unit 100 has a gear 105, and the power switching mechanism 120 moves the locking component 103 and the transmission component 104 along the X-axis direction, thereby making it possible to engage the gear 105 with the locking component 103 and to engage the gear 105 with the transmission component 104. With the above configuration, when the gear 102 is rotating, the gear 105 does not rotate when the gear 105 is engaged with the locking component 103, and rotates when the gear 105 is engaged with the transmission component 104.

[0027] As shown in FIG. 7 to FIG. 12, the gear 105 engages with the gear 106, the gear 106 engages with the gear 107, the gear 107 engages with the gear 108, and the gear 108 engages with the gear 109. The gear 109 engages with the gear 110. The gear 110 engages with the gear 111, which shares a common rotation axis, via the friction forming portion 112. In other words, the gears 110, 111, and the friction forming portion 112 form a friction gear. The gear 111 engages with the gear 113, which is the final stage of the drive gear train of the power transmission portion 100. The gear 113 is configured to be rotatable together with the pinion 114, which shares a common rotation axis, and the pinion 114 engages with the rack 5a formed on the medium receiving tray 5, so that the medium receiving tray 5 can move along the Y-axis direction as the gear 113 rotates. Thus, the power transmission unit 100 of this embodiment includes the power switching mechanism 120 and the drive gear train from the gear 101 to the gear 113.

[0028] Here, in the recording device 1 of this embodiment, the power transmission unit 100 is located in an area L1 between the outer end of the transport roller pulley 7a and the outer end of the discharge roller pulley 8a in the Y-axis direction corresponding to the discharge direction of the medium, as shown in FIG. 6. If the power transmission unit 100 is arranged on the leading end side of the discharge roller pulley 8a in the discharge direction, the entire device tends to protrude in the +Y direction, which is the leading end side of the discharge direction, and if the power transmission unit 100 is arranged on the -Y direction, which is the rear end side of the discharge direction, than the transport roller pulley 7a, the entire device tends to protrude on the rear end side of the discharge direction, but by arranging the power transmission unit 100 in this way, the entire length of the recording device 1 in the discharge direction can be shortened. Therefore, the recording device 1 of this embodiment achieves miniaturization in a recording device having a medium receiving tray 5 that can be displaced between a first state and a second state.

[0029] 4 and 5, the power transmission unit 100 of this embodiment is located closer to the center of the recording device 1 in the X-axis direction corresponding to the reciprocating movement direction of the carriage 3 than the routing range L2 of the belt 10, that is, on the -X direction side in FIGS. 4 and 5. If the power transmission unit 100 is located outside the recording device 1 in the reciprocating movement direction of the carriage 3 than the routing range of the belt 10, the entire device tends to protrude in the reciprocating movement direction of the carriage 3, but by adopting such a configuration, the entire length of the recording device 1 in the reciprocating movement direction of the carriage 3 can be shortened. Therefore, the recording device 1 of this embodiment achieves a particularly compact size in a recording device having a medium receiving tray 5 that can be displaced between a first state and a second state.

[0030] 6, the power transmission unit 100 of this embodiment is located around the motor 6 when viewed from the direction along the reciprocating movement direction of the carriage 3. In other words, the power transmission unit 100 is disposed to bypass the motor 6. Therefore, the recording device 1 of this embodiment prevents the power transmission unit 100 from interfering with the motor 6.

[0031] Next, the recording device 1 of this embodiment will be described from the viewpoint of the arrangement of the power switching mechanism 120. As shown in Figs. 8 to 12, the recording device 1 of this embodiment has, as the power switching mechanism 120, a switching lever part 121 that switches the power transmission part 100 between a power transmission state and a power non-transmission state, a cam 122 having a cam surface 122a as shown in Fig. 3, and a holding part 123 that holds the lock part 103 and the transmission part 104 as shown in Fig. 11 and the like and has a pin 123a disposed on the cam surface 122a as shown in Fig. 3. The power switching mechanism 120 can be switched between a power non-transmission state and a power transmission state by the switching lever part 121, as will be described in detail later. The power switching mechanism 120 is located in an area L3 between the outer end of the motor 6 and the outer end of the transport roller 7 in the Y-axis direction corresponding to the medium discharge direction as shown in Fig. 2. The position of the power switching mechanism 120 can be, for example, position S1 shown in FIG. 3, which is the contact position between the cam surface 122a and the pin 123a.

[0032] If the power switching mechanism 120 is disposed closer to the leading end in the discharge direction (+Y direction) than the outer end of the motor 6, the entire device will tend to protrude toward the leading end in the discharge direction (+Y direction), and if the power transmission unit 120 is disposed closer to the trailing end in the discharge direction (-Y direction) than the outer end of the transport roller 7, the entire device will tend to protrude toward the trailing end in the discharge direction (-Y direction). However, by disposing the power switching mechanism 120 in this manner, the overall length of the recording device 1 in the discharge direction (Y axis direction) can be shortened. Therefore, the recording device 1 of this embodiment achieves miniaturization in a recording device having a medium receiving tray 5 that can be displaced between a first state and a second state.

[0033] 3, in the power switching mechanism 120 of this embodiment, position S1 overlaps with the range L4 occupied by the motor 6 in the reciprocating movement direction (X-axis direction) of the carriage 3. Furthermore, as shown in Fig. 2, in the power switching mechanism 120 of this embodiment, position S1 overlaps with the range L5 occupied by the motor 6 in the Z-axis direction corresponding to the intersecting direction intersecting both the ejection direction (Y-axis direction) and the reciprocating movement direction (Y-axis direction) of the carriage.

[0034] In this way, it is preferable that the power switching mechanism 120 overlaps with the motor 6 in at least one of the reciprocating movement direction (X-axis direction) and the intersecting direction (Z-axis direction) of the carriage 3. This configuration allows the power switching mechanism 120 to be efficiently disposed with respect to the motor 6 in at least one of the reciprocating movement direction (X-axis direction) and the intersecting direction (Z-axis direction) of the carriage 3, and makes it possible to particularly miniaturize a recording device having a medium receiving tray 5 that can be displaced between a first state and a second state.

[0035] 2, the position S1 of the power switching mechanism 120 of this embodiment overlaps with the occupation range L6 of the gear 113, which is the final stage of the drive gear train of the power transmission unit 100, in the intersecting direction (Z-axis direction). The power switching mechanism 120 of this embodiment is configured in this way, so that the power switching mechanism 120 can be efficiently disposed with respect to the drive gear train of the power transmission unit 100 in the intersecting direction (Z-axis direction). This makes it possible to particularly reduce the size of the recording device 1 of this embodiment, which has the medium receiving tray 5 that can be displaced between a first state and a second state.

[0036] The following describes the relationship between the power transmission unit 100, particularly the operation of the switching lever unit 121 of the power switching mechanism 120, the associated operation of the drive wheel train of the power transmission unit 100, and the operation of the carriage 3. As shown in Figs. 8 and 9, the switching lever unit 121 is provided within a reciprocating movement range A1 of the carriage 3 in the X-axis direction. The reciprocating movement range A1 of the carriage 3 means the area in which the carriage 3 exists as the carriage 3 reciprocates. The switching lever unit 121 is configured to be able to rotate between a contact position where a tip portion 121a, which is a part of the switching lever unit 121, can come into contact with the carriage 3 as the carriage 3 reciprocates, as shown in the right-hand diagrams of Figs. 9 and 13, and a non-contact position where no part of the switching lever unit 121 comes into contact with the carriage 3 even if the carriage 3 moves, as shown in the left-hand diagrams of Figs. 8 and 13. Specifically, by rotating the motor 6 in the forward direction, which is the rotation direction during medium transport, and rotating the transport roller 7 in rotation direction R1 in Fig. 13, the switching lever portion 121 moves from the non-contact position shown on the left side of Fig. 13, which is the initial state, to the contact position shown on the right side of Fig. 13. In the initial state, the switching lever portion 121 is biased in the rotation direction R2.

[0037] 13, the switching lever portion 121 has a tip portion 121a that moves forward and backward within a reciprocating movement range A1 of the carriage 3 by rotating, and an engaging portion 121b that does not engage with the engaged portion 123b of the holding portion 123 at a non-contact position and engages with the engaged portion 123b of the holding portion 123 at a contact position. Here, the switching lever portion 121 is biased in the -X direction by an elastic member 125, and the holding portion 123 is biased in the -X direction by a coil spring 124. However, when the switching lever portion 121 is in the contact position, it comes into contact with the carriage 3 and slides in the +X direction as the carriage 3 reciprocates, so that the holding portion 123 slides in the +X direction together with the switching lever portion 121. Then, the holding portion 123 slides in the +X direction together with the switching lever portion 121, so that the power transmission portion 100 switches between a power non-transmitting state and a power transmitting state.

[0038] The procedure by which the power transmission unit 100 switches from the non-power transmission state to the power transmission state will be described below with reference to Figures 3, 14, 15, 16, and 20. Figures 14, 15, and 16 all show how the power transmission unit 100 switches from the non-power transmission state to the power transmission state. The upper left diagrams of Figures 14, 15, and 16 all correspond to the left diagrams of Figure 13, and show a state in which the switching lever unit 121 is in the non-contact position, which is the initial state. In this state, the position of the pin 123a of the holding unit 123 relative to the cam surface 122a of the cam 122 is the first position P1 in Figure 3.

[0039] Next, by rotating the motor 6 in the forward direction, the state transitions from the state shown in the upper left diagrams of Fig. 14, Fig. 15, and Fig. 16 to the state shown in the upper right diagrams of Fig. 14, Fig. 15, and Fig. 16. This corresponds to the switching lever portion 121 rotating to transition from the state shown in the left diagram of Fig. 13 to the state shown in the right diagram of Fig. 13, specifically, the switching lever portion 121 rotates in the rotation direction R1, the tip portion 121a enters the reciprocating movement range A1 of the carriage 3, and the engaging portion 121b engages with the engaged portion 123b. Note that even in this state, the position of the pin 123a of the holding portion 123 relative to the cam surface 122a of the cam 122 is the first position P1 in Fig. 3. Here, in the states shown in the upper left figures of Figures 14, 15 and 16, and the upper right figures of Figures 14, 15 and 16, the gear 105 and the locking component 103 are engaged, and the power transmission part 100 is in a non-power transmitting state.

[0040] Next, from the state shown in the upper right diagrams of Figs. 14, 15 and 16, the tip 121a comes into contact with the carriage 3, and the switching lever part 121 is pushed in the +X direction, and the state shifts to the state shown in the lower left diagrams of Figs. 14, 15 and 16. In Figs. 14, 15 and 16, the carriage 3 is omitted. In this state, the position of the pin 123a of the holding part 123 relative to the cam surface 122a of the cam 122 is the second position P2 in Fig. 3. It moves from the first position P1 to the second position P2 along the moving path D1. At the second position P2 in Fig. 3, a pin holding part 122b is formed, which holds the pin 123a by hooking it on the cam surface 122a. Here, in the state shown in the lower left diagrams of Figs. 14, 15 and 16, the gear 105 and the transmission part 104 are engaged, and the power transmission part 100 is in a power transmission state. 20, when the position of the pin 123a of the holding portion 123 shown in the state of the lower left diagrams of Fig. 14, Fig. 15 and Fig. 16 is at the second position P2, the engaging portion 121b and the engaged portion 123b are supported by the upper surface 126a of the support frame 126 of the gear 101. This prevents the engaging portion 121b and the engaged portion 123b from coming out of engagement with each other.

[0041] Next, from the state shown in the lower left diagrams of Figs. 14, 15 and 16, the tip portion 121a comes into contact with the carriage 3, and the switching lever portion 121 is further pushed in the +X direction, and the state shifts to the state shown in the lower right diagrams of Figs. 14, 15 and 16. In this state, the position of the pin 123a of the holding portion 123 relative to the cam surface 122a of the cam 122 is the third position P3 in Fig. 3. It moves from the second position P2 to the third position P3 along the movement path D2. Since the third position P3 does not have a structure for holding the pin 123a such as the pin holding portion 122b, as the carriage 3 moves in the -X direction, the position of the pin 123a of the holding portion 123 relative to the cam surface 122a of the cam 122 returns to the first position P1 due to the biasing force of the elastic member 125 acting in the -X direction. It moves from the third position P3 to the first position P1 along the movement path D3.

[0042] By configuring the recording device 1 of this embodiment in this way, it is possible to suitably arrange the power switching mechanism 120 and the switching lever unit 121 for switching the power transmission unit 100 between a power non-transmitting state and a power transmitting state, and it is possible to miniaturize the entire mechanism for switching the medium receiving tray 5 between the first state and the second state. This also makes it possible to miniaturize the entire recording device 1.

[0043] As described above, in the switching lever portion 121 of the recording device 1 of this embodiment, at least the tip portion 121a enters the reciprocating movement range A1 of the carriage 3 at the contact position as shown in the right diagrams of Fig. 9 and Fig. 13, and the tip portion 121a retracts from the reciprocating movement range A1 of the carriage 3 at the non-contact position as shown in the left diagrams of Fig. 8 and Fig. 13. In this way, by the tip portion 121a retracting from the reciprocating movement range A1 of the carriage 3 at the non-contact position in the power non-transmitting state, it is possible to eliminate the need to provide the switching lever portion 121 outside the reciprocating movement range A1 of the carriage 3, and it is possible to particularly reduce the size of the recording device 1.

[0044] As described above, in the recording device 1 of this embodiment, the power transmission unit 100 has a locking part 103 that prevents the rotation of the gear when in the power non-transmitting state as shown in the upper right diagrams of Figs. 14 and 16, and a transmission part 104 that transmits the power of the motor 6 when in the power transmitting state as shown in the lower left diagrams of Figs. 14 and 16. As is clear from a comparison between the upper right diagrams of Figs. 14 and 16 and the lower left diagrams of Figs. 14 and 16, the switching lever part 121 slides in the +X direction by contacting the carriage 3, etc., to switch the connection of the locking part 103 and the transmission part 104 to the gear 105 in the power transmission unit 100. The recording device 1 of this embodiment has such a configuration, and thus it is possible to easily form a mechanism that prevents the rotation of the gear when in the power non-transmitting state and a mechanism that transmits the power of the motor 6 when in the power transmitting state. In the recording device 1 of this embodiment, when the medium receiving tray 5 is manually operated, a load is generated by the friction gears shown in Figures 21 and 22. The purpose of generating this load is to prevent the medium receiving tray 5 from moving under its own weight when the recording device 1 is tilted for storage, etc., and to create a feeling of manual operation. When transmitting power, the connection between the locking part 103 and the transmission part 104 is switched to release the lock on the gear train and drive the medium receiving tray 5 with the motor power.

[0045] Here, the power transmission unit 100 is configured to be able to switch the connection of the gear 105 from the locking part 103 to the transmission part 104 by contacting the carriage 3 with an external load in the +X direction, which is the direction in which the switching lever part 121 comes into contact with the carriage 3 and slides, or by, for example, manually applying an external load by the user. With this configuration, the recording device 1 of this embodiment is able to manually switch between a power transmission state and a power non-transmission state, for example, when the recording device 1 is turned off. Furthermore, it is possible to reduce the number of parts of the mechanism that allows the user to manually switch between the power transmission state and the power non-transmission state.

[0046] Here, the configuration of a switching mechanism for the connection of the gear 105 from the lock component 103 to the transmission component 104 in the power transmission unit 100 will be described with reference to Fig. 16 to Fig. 19. Here, Fig. 17 to Fig. 19 show the state shown in the upper left of Fig. 16, that is, the state in which the position of the pin 123a of the holding unit 123 relative to the cam surface 122a of the cam 122 is at the first position P1 in Fig. 3. Also, in Fig. 17, in order to make the shape of the rotation shaft 102a of the gear 102 easier to understand, a compression spring 127 described below is omitted.

[0047] As shown in Fig. 18 and Fig. 19, the area of ​​the rotation shaft 102a of the gear 102 on the -X direction side from the center is a cross shape 102b. As shown in Fig. 19, the transmission part 104 is provided with a cross-shaped hole portion, which is fitted with the cross shape 102b of the rotation shaft 102a, so that the transmission part 104 always rotates with the rotation of the rotation shaft 102a. On the other hand, as shown in Fig. 16 and Fig. 17, the locking part 103 is provided with a round hole through which the rotation shaft 102a passes. The locking part 103 is configured not to rotate with the rotation of the rotation shaft 102a in any of the following states: when the locking part 103 faces the cross shape 102b area of ​​the rotation shaft 102a in the upper left state of Fig. 16, when the locking part 103 faces the cylindrical area 102c that is not the cross shape 102b area of ​​the rotation shaft 102a in the upper right state of Fig. 16 and when the locking part 103 faces the cylindrical area 102c that is not the cross shape 102b area of ​​the rotation shaft 102a in the lower left state of Fig. 16. As shown in FIG. 17, the locking part 103 has a flange portion 103b, which will be described later, that is substantially D-shaped, and even if the rotating shaft 102a rotates and is about to rotate together with the locking part 103, the abutment portion 123c of the holding part 123 abuts against the flange portion 103b, so that the locking part 103 does not rotate together with the rotating shaft 102a.

[0048] As shown in FIG. 18 and other figures, a compression spring 127 is provided between the gear 102 of the rotating shaft 102a and the locking component 103, and the locking component 103 is biased by the compression spring 127 in the -X direction, which is the direction away from the gear 102. The locking component 103 has a tooth portion 103a on the -X direction side and a flange portion 103b having a substantially D-shape on the +X direction side. Because the compression spring 127 is provided and the locking component 103 has such a configuration, the teeth of the locking component 103 and the gear 105 easily engage with each other even if the teeth of the locking component 103 temporarily come into contact with each other, and the locking component 103 is preferably positioned. Furthermore, because the compression spring 127 is provided, when the state of the transmission component 104 shifts from the upper right state in FIG. 16 to the lower left state in FIG. 16, the teeth of the transmission component 104 and the gear 105 easily engage with each other even if the teeth of the transmission component 104 temporarily come into contact with each other.

[0049] 3, the power switching mechanism 120 of the power transmission unit 100 has a cam 122 having a cam surface 122a, and a holding part 123 that holds the locking part 103 and the transmission part 104 and has a pin 123a disposed on the cam surface 122a, and as described above, the pin 123a moves on the cam surface 122a from a first position P1 to a second position P2 to a third position P3, thereby moving between a power non-transmitting state and a power transmitting state. With this configuration, the recording device 1 of this embodiment can be configured in a small size for the power transmission unit 100, and the recording device 1 can be particularly made small.

[0050] 3, the cam surface 122a is provided with a flat surface portion 122c on which the pin 123a is located when the power transmission unit 100 is in a power non-transmitting state, i.e., when the pin 123a is in a position other than the second position P2 on the cam surface 122a. The cam surface 122a is provided with a pin holding portion 122b that holds the pin 123a when the power transmission unit 100 is in a power transmitting state, i.e., when the pin 123a is in the second position P2 on the cam surface 122a. With this configuration, it is possible to prevent the position of the pin 123a from shifting when the power transmission unit 100 is in a power transmitting state.

[0051] Next, the configurations of the gear 110, the gear 111, and the friction forming portion 112, i.e., the friction gear configured by these, will be described with reference to Figures 21 and 22. As shown in Figures 21 and 22, the gear 110 has a hook portion 110a formed on the -X direction side. And as shown in Figure 22, the gear 111 has a contact portion 111a formed on the +X direction side for contacting a wall portion 110b of the gear 110. If the contact force of the contact portion 111a against the wall portion 110b is strong, the gear 111 will easily rotate together with the gear 110, and if the contact force of the contact portion 111a against the wall portion 110b is weak, the gear 111 will slip relative to the gear 110 and will not easily rotate together with the gear 110. Here, as shown in Figures 21 and 22, a friction forming portion 112, which is a compression spring, is formed between the hook portion 110a and the abutment portion 111a, and the abutment force of the abutment portion 111a against the wall portion 110b is set to an appropriate abutment force.

[0052] Next, the configuration of the head forming surface 3a, which is the surface of the carriage 3 facing the switching lever portion 121, will be described with reference to Figs. 23 and 24. Here, Figs. 23 and 24 show the state when the carriage 3 is positioned at the most +X direction side of its reciprocating movement range A1. Specifically, the recording device 1 of this embodiment is capable of so-called skew correction, which suppresses skewed conveyance of the medium by repeatedly conveying the medium in the conveying direction and conveying the medium in the direction opposite to the conveying direction, and when skew correction, the carriage 3 is located at the position shown in Figs. 23 and 24. Here, when skew correction is performed, the switching lever portion 121 also rotates with the rotation of the conveying roller 7, so that the head forming surface 3a and the switching lever portion 121 come into contact with each other as shown in Fig. 23.

[0053] The carriage 3 of this embodiment has the recording head 4, the medium width sensor 21, and the hole shape 22 on the head formation surface 3a. These are sensitive components that may cause performance changes when they come into contact with other components, and therefore correspond to the non-permissible part that does not allow contact with the switching lever part 121. In the carriage 3 of this embodiment, as shown in FIG. 23, the tip part 121a of the switching lever part 121 is disposed at a position facing the medium width sensor 21. Therefore, the carriage 3 of this embodiment is provided with a guard part 3b that guards the medium width sensor 21 around the medium width sensor 21 as the non-permissible part. The tip part 121a of the switching lever part 121 is configured such that a flat facing surface is provided at a portion facing the guard part 3b. Therefore, in the recording device 1 of this embodiment, even if the tip part 121a comes into contact with the guard part 3b, it is possible to prevent the tip part 121a from coming into contact with the medium width sensor 21 as the non-permissible part.

[0054] In this embodiment, the tip 121a of the switching lever portion 121 is disposed at a position facing the medium width sensor 21 as the non-permissible portion. For this reason, a guard portion 3b is provided around the medium width sensor 21 to guard the medium width sensor 21. However, if the tip 121a of the switching lever portion 121 is disposed at a position facing the recording head 4 as the non-permissible portion, it is preferable that the guard portion 3b is provided around the recording head 4, and if the tip 121a of the switching lever portion 121 is disposed at a position facing the hole shape 22 as the non-permissible portion, the guard portion 3b is provided around the hole shape 22.

[0055] Next, the mounting configuration of the power transmission unit 100 will be described with reference to Fig. 25 to Fig. 28. As shown in Fig. 25 to Fig. 27, the power transmission unit 100 is sandwiched in the X-axis direction between a first frame 131 having a plurality of gear support parts 131a and a second frame 132 to form one unit 130. The unit 130 is placed and fixed on a mounting part 141 of a main body frame 140 to which the discharge roller 8 is attached, as shown in Fig. 28.

[0056] That is, the recording device 1 of this embodiment includes a main body frame 140 to which the discharge roller 8 is attached, and the power transmission unit 100 is provided in a unit 130 that is separate from the main body frame 140 and is detachable from the main body frame 140. With this configuration, the recording device 1 of this embodiment can easily mount the power transmission unit 100 inside the recording device 1, and can easily replace or clean the power transmission unit 100.

[0057] The present invention is not limited to the above-mentioned embodiments, and can be realized in various configurations without departing from the spirit of the present invention. The technical features in the embodiments corresponding to the technical features in each aspect described in the Summary of the Invention can be appropriately replaced or combined in order to solve some or all of the above-mentioned problems or to achieve some or all of the above-mentioned effects. Furthermore, if a technical feature is not described as essential in this specification, it can be appropriately deleted. [Explanation of symbols]

[0058] 1...recording device, 2...casing, 2a...front cover, 3...carriage, 3a...head forming surface, 3b...guard section, 4...recording head (non-permissible section), 5...media receiving tray, 5a...rack, 6...motor, 6a...motor pulley, 7...transport roller, 7a...transport roller pulley, 7b...encoder, 8...ejection roller, 8a...ejection roller pulley, 9...pulley, 10...belt, 21...media width sensor Sensor (non-permissible portion), 22...hole shape (non-permissible portion), 100...power transmission portion, 101...gear, 102...gear, 102a...rotating shaft, 102b...cross shape, 102c...cylindrical region, 103...locking part, 103a...tooth portion, 103b...flange portion, 104...transmission part, 105...gear, 106...gear, 107...gear, 108...gear, 109...gear, 110...gear, 110a...hook portion, 110b...wall portion , 111... gear, 111a... abutment portion, 112... friction forming portion, 113... gear, 114... pinion, 120... power switching mechanism, 121... switching lever portion, 121a... tip portion, 121b... engagement portion, 122... cam, 122a... cam surface, 122b... pin holding portion, 122c... flat portion, 123... holding member, 123a... pin, 123b... engaged portion, 123c... abutted portion, 124... coil spring, 125... elastic member , 126...support frame, 126a...upper surface, 127...compression spring, 130...unit, 131...first frame, 131a...gear support portion, 132...second frame, 140...main body frame, 141...mounting portion, A1...reciprocating movement range, L1...area, L2...routing range, L3...area, L4...occupied range, L5...occupied range, L6...occupied range, P1...first position, P2...second position, P3...third position, S1...position

Claims

1. A recording head that is mounted on a reciprocating carriage and performs recording on a medium; A transport roller for transporting the medium; an ejection roller for ejecting the medium on which recording has been performed; a medium receiving tray that receives the medium discharged by the discharge roller, the medium receiving tray being capable of taking a first state and a second state displaced from the first state in a direction in which the medium is discharged; A motor that is a power source for the discharge roller; a power transmission unit that can take a power transmission state in which the power of the motor is transmitted from the motor to the medium receiving tray and a power non-transmission state in which the power of the motor is not transmitted from the motor to the medium receiving tray; a conveying roller pulley provided on the conveying roller and a discharge roller pulley provided on the discharge roller; and a belt wound around the conveying roller pulley and the discharge roller. Equipped with The recording apparatus according to claim 1, wherein the power transmission unit is located between an outer end of the transport roller pulley and an outer end of the discharge roller pulley in the discharge direction.

2. 2. The recording apparatus according to claim 1, The recording apparatus according to claim 1, wherein the power transmission unit is located inside a range in which the belt is routed and closer to a center of the recording apparatus in a reciprocating direction of the carriage.

3. 3. The recording apparatus according to claim 1, The recording apparatus according to claim 1, wherein the power transmission unit is located around the motor when viewed from a direction along the reciprocating direction of the carriage.

4. A recording head that is mounted on a reciprocating carriage and records on a medium; A transport roller for transporting the medium; an ejection roller for ejecting the medium on which recording has been performed; a medium receiving tray that receives the medium discharged by the discharge roller, the medium receiving tray being capable of taking a first state and a second state displaced from the first state in a direction in which the medium is discharged; A motor that is a power source for the discharge roller; a power transmission unit that can take a power transmission state in which the power of the motor is transmitted from the motor to the medium receiving tray and a power non-transmission state in which the power of the motor is not transmitted from the motor to the medium receiving tray; a switching lever portion that switches between the power non-transmitting state and the power transmitting state; Equipped with the power transmission unit has a power switching mechanism that is switched between the power non-transmission state and the power transmission state by the switching lever portion, The recording apparatus according to claim 1, wherein the power switching mechanism is located between an outer end of the motor and an outer end of the transport roller in the discharge direction.

5. 5. The recording apparatus according to claim 4, a power switching mechanism that overlaps with the motor in at least one of a direction in which the carriage reciprocates and a direction intersecting both the ejection direction and the direction in which the carriage reciprocates;

6. 6. The recording apparatus according to claim 4, The recording device according to claim 1, wherein the power switching mechanism overlaps with a final stage of a drive gear train of the power transmission unit in a direction intersecting both the ejection direction and the reciprocating direction of the carriage.

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