JP2013029559A - Support device for display unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support device for display unit that can safely and smoothly tilt a display unit to a predetermined tilt angle without requiring any complicated control circuit.SOLUTION: The support device for display unit includes a rotational support mechanism part 16 which supports an input display unit 2 for an equipment body 1 such that the tilt angle of the input display unit 2 to the equipment body 1 is changeable; a driving mechanism part 17 which changes a tilt of the input display unit 2 by driving the rotational support mechanism part 16; and a torque limiter part 18 which releases driving force of the driving mechanism part 17 when a load which is larger than predetermined is placed on the rotational support mechanism part 16 while the driving mechanism part 17 is in the driving state. Therefore, the driving mechanism part 17 drives the rotational support mechanism part 18 to smoothly tilt the input display unit 2 to the equipment body 1. When a load which is larger than predetermined is placed on the rotational support mechanism part 16, the torque limiter part 18 makes the rotational support mechanism 16 idle.

Description

  The present invention relates to a display unit support device used in an electronic apparatus having a display unit such as an electronic register, and more particularly to a display unit support device in which the tilt of the display unit is variable.

  For example, in a display device such as a display, as described in Patent Document 1, a configuration in which a display unit is attached to a support member provided so as to be capable of appearing and retracting in an apparatus main body so as to be rotatable in a vertical direction by a rotation shaft. Things are known.

Japanese Patent Laid-Open No. 06-199187

  This type of display device is arranged in a state where the display unit is laid on the support member, and in this state, the display unit is housed in the device main body together with the support member, and the display unit is pulled out from the device main body together with the support member, By rotating the rotating shaft in this state, the display unit is configured to stand upright at a predetermined angle on the support member.

  In such a display device, the display unit is fixed to a rotating shaft, and the rotating unit is rotated by a motor so that the display unit is tilted at a predetermined angle to stand up. In this case, in order to incline the display unit at a predetermined angle, the inclination of the display unit accompanying the rotation of the rotation shaft is detected by an angle sensor, and the driving of the motor is controlled based on the detected information. It is configured.

  However, in such a display device, it is necessary to accurately stop the display unit at a predetermined tilt angle by detecting the tilt of the display unit with an angle sensor and controlling the driving of the motor based on the detected information. As a result, the motor control circuit becomes complicated, and when the display unit tilt is controlled by driving the motor and the external load is applied to the display unit, the drive mechanism such as the motor will fail. There are concerns.

  The problem to be solved by the present invention is to provide a display unit support device which can tilt the display unit at a predetermined tilt angle safely and smoothly without requiring a complicated control circuit.

  The present invention relates to a rotation support mechanism that supports the display unit with respect to the device main body in a state in which the tilt angle of the display unit with respect to the device main body can be changed, and the rotation support mechanism that drives the rotation support mechanism. A driving mechanism for changing the inclination of the display unit, and a driving force of the driving mechanism when a load greater than a predetermined amount is applied to the rotation support mechanism in the driving state of the driving mechanism. And a torque limiter for releasing the display unit.

  According to the present invention, by operating the rotation support mechanism portion by the drive mechanism portion, the display unit can be tilted smoothly and satisfactorily with respect to the apparatus body, and the rotation support mechanism portion is driven by the drive mechanism portion. When a load exceeding a predetermined value is applied to the rotation support mechanism during the operation, the torque limiter can release the driving force of the drive mechanism.

It is the perspective view which showed one Embodiment which applied this invention to the electronic register. FIG. 2 is a perspective view showing the electronic register shown in FIG. 1 as viewed from the back side. FIG. 2 is a plan view of the electronic register shown in FIG. 1. FIG. 2 is a front view of the electronic register shown in FIG. 1. 1 shows a side view of the electronic register shown in FIG. 1 as viewed from the left side, (a) is a side view showing a state in which a rotary indicator is housed in a display housing portion of the device body, and (b) is a top view of the device body. It is the side view which showed the state which pulled up the rotation indicator. 1 shows a side view of the electronic register shown in FIG. 1 as viewed from the right side, (a) is a side view showing a state in which the input display unit is gently inclined on the apparatus body, and (b) is on the apparatus body. It is the side view which showed the state which stood up the input display unit to the rear part up. FIG. 2 is an exploded perspective view of a main part of the electronic register shown in FIG. 1, showing a state in which a rotating convex portion of an input display unit is removed from a supporting concave portion of a device body. FIG. 2 is a perspective view showing a drive mechanism provided in the electronic register shown in FIG. 1 by cutting a part of a device main body at a location corresponding to a support recess. It is an expanded sectional view of the principal part in the AA arrow of the electronic register shown by FIG. FIG. 8 is a perspective view showing the rotating convex portion in the electronic register shown in FIG. It is an expanded sectional view of the principal part in the BB arrow of the electronic register shown by FIG. FIG. 9 is an enlarged perspective view of a main part showing a part of the drive mechanism and the torque limiter shown in FIG. 8. FIG. 13 is an enlarged perspective view of a main part in which a part of the torque limiter part shown in FIG. 12 is disassembled. 12 shows the engagement state between the pin member and the engaging groove of the locking portion in the torque limiter portion shown in FIG. 12, and (a) shows that the pin member is elastically engaged with the engaging groove of the locking portion. FIG. 5B is an enlarged cross-sectional view of the main part showing a state in which the pin member is elastically pushed out from the engaging groove of the locking part.

Hereinafter, an embodiment in which the present invention is applied to an electronic register will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the electronic register includes a device main body 1. An input display unit 2, a printer unit 3, and a rotation display 4 are mounted on the device main body 1.

  As shown in FIGS. 1 to 4, the input display unit 2 is provided with a touch input display unit 6 on the upper surface of the unit case 5. It is configured to input by a touch operation. In this case, although not shown, the touch input display unit 6 has a configuration in which a transparent touch panel is disposed on the upper surface of the display panel.

  As shown in FIGS. 1 to 4, the touch input display unit 6 touches the touch panel while viewing information displayed on the display panel and inputs information on a product to be bought and sold. Is displayed on the display panel. In this case, as shown in FIGS. 1 to 4, the unit case 5 is disposed on the device main body 1 at a position excluding a part of the device main body 1 (the left portion in FIG. 1) in a state of being inclined forward and downward. Has been.

  As shown in FIGS. 1 to 5, the printer unit 3 is provided in a printer cover 7 that can be opened and closed on the device main body 1 and in the device main body 1 that is positioned below the printer cover 7. A printer unit 8 and a recording paper storage unit 9 provided in the device main body 1 located in the vicinity of the printer unit 8 are provided, and are arranged on the device main body 1 on the left side of the input display unit 2.

  As shown in FIGS. 1 to 5, the printer cover 7 is disposed on the device main body 1 in a state where it is substantially the same height as the upper surface of the input display unit 2 and is inclined forward and downward. The printer unit 8 includes a printing unit and a platen unit, between which the recording paper 10 stored in the recording paper storage unit 9 is sent, and print information is printed on the sent recording paper 10 and sent out. It is configured as follows.

  That is, as shown in FIGS. 5A and 5B, the printer unit 8 sequentially pulls out the roll-shaped recording paper 10 stored in the recording paper storage unit 9, and the extracted recording paper 10 Printing information is printed, and the printed recording paper 10 is discharged from the recording paper discharge port 7 a provided in the printer cover 7 to the outside of the apparatus main body 1.

  Further, as shown in FIGS. 1 to 5, the rotation display 4 is for displaying information input by an operator and making the displayed information visible to the customer. That is, the rotation display 4 is provided with a display panel 12 for displaying information on the display case 11 and is configured to support the display case 11 so as to be movable in an up-and-down direction with respect to the device body 1 by a support mechanism 13. Has been.

  In this case, as shown in FIGS. 1 to 5, the display case 11 is formed in a horizontally long rectangular box shape. The display panel 12 is a flat display element such as a liquid crystal display element or an EL (electroluminescence) display element, and is arranged in a horizontally long state on the side surface located on the back side of the display case 11 and input by an operator. Various kinds of information necessary for the electronic register such as information are displayed in an electro-optical manner. Thereby, as shown in FIGS. 1-5, this rotation indicator 4 is comprised so that it can protrude and retract in the display storage part 14 provided in the back surface of the apparatus main body 1. FIG.

  By the way, as shown in FIGS. 2 and 6, the input display unit 2 is configured to be supported on the apparatus main body 1 in a state in which the inclination is variable by the support device 15. That is, as shown in FIGS. 6 and 7, the support device 15 rotates to support the input display unit 2 with respect to the device main body 1 in a state in which the tilt angle of the input display unit 2 with respect to the device main body 1 can be varied. A support mechanism 16 is provided.

  In addition to the rotation support mechanism 16, the support device 15 drives the rotation support mechanism 16 to change the inclination of the input display unit 2 with respect to the device main body 1, as shown in FIGS. And a torque limiter unit 18 for releasing the driving force of the drive mechanism unit 17 when a load exceeding a predetermined value is applied to the rotation support mechanism unit 16 in the drive state of the drive mechanism unit 17. Are further provided.

  As shown in FIGS. 6 and 7, the rotation support mechanism unit 16 includes a support recess 20 formed in a substantially semicircular arc shape from the upper surface to the side surface of the device body 1, and a unit case 5 of the input display unit 2. And a rotating convex portion 21 which is formed so as to protrude in a substantially semi-cylindrical shape. Thereby, this rotation support mechanism part 16 is comprised so that the rotation convex part 21 may be arrange | positioned in the state which can be rotationally moved on the support recessed part 20. As shown in FIG.

  In this case, the rotation convex portion 21 of the unit case 5 is formed in a substantially semi-cylindrical shape as shown in FIGS. Thus, the outer surface (upper surface in FIG. 10) of the rotating convex portion 21 is formed in a substantially semicircular arc-shaped convex curved surface, and the inner surface (upper surface in FIG. 7) of the rotating convex portion 21 is a substantially semicircular arc-shaped concave curved surface. Is formed. Further, the support concave portion 20 of the device main body 1 has an outer surface (upper surface in FIG. 7) formed into a substantially semicircular concave curved surface, and the inner surface (lower surface in FIG. 9) of the support concave portion 20 is substantially half. It is formed in an arc-shaped convex curved surface.

  Further, as shown in FIGS. 7 and 9, the rotation support mechanism portion 16 includes a holding member 22 for pressing and holding the rotation convex portion 21 against the support concave portion 20 so as to be rotationally movable. The holding member 22 is rotatably attached to a plurality of rollers 23 that relatively rotate and move along the inner peripheral surface of the rotation convex portion 21, and each shaft 23 a of the plurality of rollers 23, and the rotation convex portion 21. And a roller holding portion 26 which is inserted and attached to the inside of the support recess 20 through the first slit groove 24 and the second slit groove 25 of the support recess 20.

  In this case, as shown in FIG. 7 and FIG. 10, the first slit groove 24 of the rotating convex portion 21 is an elongated hole in which the roller holding portion 26 moves relatively with the rotational movement of the rotating convex portion 21. It is formed continuously from the rear part to the front part along the circumferential direction of the rotating convex part 21 in a state of being located on both sides in the axial direction of the rotating convex part 21. On both sides of the first slit groove 24, a pair of guide ribs 27 that guide the roller 23 are formed along the first slit groove 24.

  Further, as shown in FIGS. 7 and 9, the second slit groove 25 of the support recess 20 is a short hole into which the roller holding portion 26 is inserted without moving, and both sides in the axial direction of the support recess 20. Are provided at a plurality of locations corresponding to the first slit groove 24 of the rotating convex portion 21, that is, at two locations positioned at the rear portion and the intermediate portion in the circumferential direction of the support concave portion 20.

  As shown in FIGS. 7 and 9, the plurality of rollers 23 are rotatably arranged in a pair of guide ribs 27 located on both sides of the first slit groove 24, and in this state, along the first slit groove 24. Thus, it is configured to relatively rotate on the inner peripheral surface of the rotating convex portion 21. The roller holding portion 26 is made of a plate-like member, and one end portion (the upper end portion in FIG. 9) is rotated while being inserted into the first slit groove 24 of the rotation convex portion 21 and the second slit groove 25 of the support concave portion 20. The other end (the lower end in FIG. 9) is inserted into the support recess 20 and inserted into the protrusion 21.

  That is, as shown in FIGS. 7 and 9, the roller holding portion 26 is rotatably attached to the shaft portion 20 a of the roller 23 at one end portion (upper end portion in FIG. 9) inserted into the rotating convex portion 21. The other end (the lower end in FIG. 9) inserted into the support recess 20 is rotatably attached to the attachment portion 28 in the support recess 20 by an attachment pin 28a. As a result, the roller holding portion 26 holds the roller 23 attached to one end thereof rotatably within the pair of guide ribs 27 of the rotation convex portion 21, and in this state, the roller 23 rotates and protrudes within the pair of guide ribs 27. It is comprised so that it may rotate on the internal peripheral surface of the part 21 relatively.

  Accordingly, as shown in FIGS. 7 and 9, the holding member 22 can relatively rotate and move on the inner peripheral surface of the rotating projection 21 positioned between the pair of guide ribs 27 of the rotating projection 21. In this state, the roller holding portion 26 is pressed against the inner peripheral surface of the rotary convex portion 21 so that the rotary convex portion 21 is pressed and held on the support concave portion 20 while being rotatable. .

  In this case, a plurality of guide rollers 29 are rotatably provided in the apparatus main body 1 located at the lower side of the support recess 20 as shown in FIG. The plurality of guide rollers 29 partially protrude from the guide insertion holes 29a provided on both sides of the lower side portion of the support recess 20 toward the outer peripheral surface of the rotation protrusion 21, and the protruding portions rotate. It contacts with the outer peripheral surface of the convex part 21, and it is comprised so that the rotation convex part 21 may be rotatably supported in this state. As a result, the guide roller 29 is configured to reduce the frictional resistance of the rotary convex portion 21 against the support concave portion 20 when the rotary convex portion 21 rotates.

  On the other hand, as shown in FIGS. 8 and 11, the drive mechanism unit 17 is for operating the rotation support mechanism unit 16 to change the inclination of the input display unit 2 with respect to the device main body 1. The drive mechanism portion 17 has a motor portion 30 provided in the device main body 1 and a part on the upper side protruding from the opening portion 31 provided in the support recess 20 toward the rotation protrusion 21, and in this state the motor The drive gear 32 that rotates according to the rotation of the portion 30 and the outer surface of the rotation convex portion 21 that faces the support concave portion 20 are provided along the circumferential direction, and a part of the upper side of the drive gear portion 32 is meshed And a driven gear 33 that rotates.

  As shown in FIGS. 8 and 11, the drive gear 32 is rotated in the circumferential direction and in the axial direction on a rotary shaft 34 that is rotatably mounted in the device main body 1 corresponding to the support recess 20. It is mounted in a slidable state. The rotating shaft 34 is configured to rotate by being driven by the motor unit 30. Further, the drive gear 32 is configured to rotate together with the rotation shaft 34 when the rotation of the rotation shaft 34 is transmitted by a torque limiter unit 18 described later.

  As shown in FIGS. 10 and 11, the driven gear 33 is an arc-shaped rack gear provided along the circumferential direction on the outer peripheral surface of the rotating convex portion 21, and has an opening provided in the support concave portion 20. A part of the upper side of the drive gear 32 that protrudes from the portion 31 toward the rotating convex portion 21 is configured to mesh. As a result, the driven gear 33 is configured to rotate and move with respect to the support recess 20 by rotating together with the rotation protrusion 21 according to the rotation of the drive gear 32.

  As shown in FIGS. 12 to 14, the torque limiter unit 18 is driven by the drive mechanism unit 17 to rotate, and rotates around the rotating shaft 34 in the circumferential direction and slides in the axial direction. The drive gear 32 attached in a possible state, the pin member 35 attached to the rotary shaft 34 and rotating together with the rotary shaft 34, and the pin member 35 provided on the side surface of the drive gear 32 so as to be detachable. And a biasing member 37 that elastically biases the drive gear 32 in a direction in which the pin member 35 is engaged with the locking ring portion 36.

  As shown in FIGS. 12 and 13, the pin member 35 is inserted into a mounting hole 34 a provided in a direction orthogonal to the axial direction of the rotating shaft 34, and the both ends protrude from the rotating shaft 34. Is attached. The locking ring portion 36 is provided so as to protrude in a ring shape on the side surface of the drive gear 32 (the side surface located on the left side in FIG. 12). On the protruding side surface of the locking ring portion 36, a plurality of locking grooves 36a are provided in which both end portions of the pin member 35 are elastically engaged with each other in a detachable manner.

  As shown in FIGS. 12 to 14, the plurality of locking grooves 36 a are grooves having a semicircular cross section corresponding to approximately half the size of the circular cross section of the pin member 35, and the rotation of the locking ring portion 36. It is formed radially with respect to the center. As a result, the locking ring portion 36 transmits the rotation of the rotary shaft 34 to the drive gear 32 when the pin member 35 is engaged with any of the plurality of locking grooves 36a. The configuration is such that the rotation of the rotation shaft 34 is not transmitted to the drive gear 32 and the drive gear 32 is idled when the member 35 is elastically pushed out of the plurality of locking grooves 36a and detached. Has been.

  The biasing member 37 is a spring member such as a coil spring, as shown in FIGS. 12 and 13, and is disposed on the outer peripheral surface of the rotary shaft 34 located on the opposite side of the pin member 35 with the drive gear 32 interposed therebetween. In this state, it is attached to the rotating shaft 34 by an attachment ring 38 such as an E ring. That is, the urging member 37 elastically presses the side surface (the right side surface in FIG. 12) of the drive gear 32 positioned opposite to the locking ring portion 36, and the pin member 35 is locked to the locking ring of the driving gear 32. It is configured to be elastically engaged with any one of the locking grooves 36 a of the portion 36.

  Thereby, as shown in FIGS. 12 to 14, the torque limiter unit 18 is configured such that the driving gear 32 is elastically pressed toward the pin member 35 by the biasing force of the biasing member 37. When the rotation shaft 34 is driven and rotated by the motor unit 30 of the drive mechanism unit 17 in a state where the pin member 35 is engaged with any of the plurality of locking grooves 36a provided in the stop ring unit 36, The rotation is transmitted to the drive gear 32 to rotate the drive gear 32.

  As shown in FIGS. 12 to 14, the torque limiter unit 18 is rotated by the rotation shaft 34 being driven by the motor unit 30 of the drive mechanism unit 17, and the rotation is transmitted to the drive gear 32. When a load more than a predetermined value is applied to the drive gear 32 in a state where the pin 32 is rotating, the pin member 35 is moved from the locking groove 36 a of the locking ring portion 36 against the biasing force of the biasing member 37. It is configured to be pushed out elastically so that the rotation of the rotary shaft 34 is not transmitted to the drive gear 32 and the drive gear 32 is idled.

  That is, the predetermined load or more of the torque limiter portion 18 means that the pin member 35 of the plurality of locking grooves 36 a provided in the locking ring portion 36 of the drive gear 32 by the biasing force of the biasing member 37. It is an engagement force that engages either, that is, a load that is approximately equal to the urging force of the urging member 37, and a load that is greater than the urging force of the urging member 37 is driven in the drive state of the motor unit 30 of the drive mechanism 17. When applied to the gear 32, the load is such that the pin member 35 is pushed out of the locking groove 36 a of the locking ring portion 36 and released.

Next, the operation of such an electronic register will be described.
In this electronic register, when an operator operates the touch input display unit 6 of the input display unit 2 and inputs information such as the price and product name of a product purchased by the customer, the input information is displayed on the touch input display unit 6. And displayed on the display panel 12 of the rotary display 4. Thereby, the operator can confirm the input information by looking at the information displayed on the touch input display unit 6 of the input display unit 2, and the customer can view the information displayed on the display panel 12 of the rotary display 4. You can check the information you entered.

  The information displayed in this way is printed on the recording paper 10 by the printer unit 8 and issued as a receipt. At this time, the operator touches the touch input display unit 6 to operate the printer unit 8. Then, the printer unit 8 sequentially pulls out the roll-shaped recording paper 10 and sequentially prints the print information on the pulled-out recording paper 10. The printed recording paper 10 is sent out from the recording paper discharge port 7a of the printer cover 7 to the outside of the apparatus main body 1 and issued as a receipt.

Next, a case where the input display unit 2 is tilted to an angle that is easy for the operator to see will be described.
At this time, the motor unit 30 of the drive mechanism unit 17 is driven by operating the switch unit 2 a of the input display unit 2. Then, the rotating shaft 34 is driven by the motor unit 30 to rotate. At this time, the drive gear 32 is elastically pressed against the pin member 35 by the biasing force of the biasing member 37 of the torque limiter unit 18.

  For this reason, since the pin member 35 is engaged with any of the plurality of locking grooves 36a provided in the locking ring portion 36 of the drive gear 32, the rotation of the rotary shaft 34 is transmitted to the drive gear 32, The drive gear 32 rotates according to the rotation of the rotating shaft 34. At this time, since the drive gear 32 meshes with the driven gear 33 provided on the outer peripheral surface of the rotation convex portion 21 in the unit case 5 of the input display unit 2, the rotation of the drive gear 32 is driven by the driven gear 33. Is transmitted to. As a result, the driven gear 33 rotates as the drive gear 32 rotates.

  Then, the rotation convex portion 21 of the unit case 5 rotates together with the driven gear 33 on the support concave portion 20 of the device main body 1, and the unit case 5 is raised while being gradually inclined. At this time, the roller 23 of the holding member 22 is pressed against the inner peripheral surface located between the pair of guide ribs 27 of the rotating convex portion 21 by the roller holding portion 26 in a state in which the roller 23 is relatively movable. For this reason, the rotating convex portion 21 rotates and moves along the outer peripheral surface of the supporting concave portion 20 while being pressed against the supporting concave portion 20.

  At this time, a part of the guide roller 29 provided in the device main body 1 at a position corresponding to the support recess 20 protrudes from the guide insertion hole 29a of the support recess 20 toward the rotation protrusion 21, and this protruding guide A part of the roller is in contact with the outer peripheral surface of the rotating convex portion 21, and in this state, the rotating convex portion 21 is rotatably supported, so that the frictional resistance of the rotating convex portion 21 against the supporting concave portion 20 is supported by the guide roller 29. Is reduced, and the rotation convex portion 21 smoothly rotates.

  When the unit case 5 of the input display unit 2 stands up with the greatest inclination with respect to the device main body 1, the roller holding portion 26 of the holding member 22 is positioned at the end of the first slit groove 24 ( In FIG. 7, the rotational movement of the rotating convex portion 21 stops. Then, a large load, that is, a load greater than a predetermined load is applied to the drive gear 32 meshed with the driven gear 33 of the rotating convex portion 21. That is, a load larger than the urging force of the urging member 37 that is an engaging force for engaging the pin member 35 with any of the plurality of locking grooves 36 a provided in the locking ring portion 36 of the drive gear 32. Join.

  At this time, the pin member 35 of the torque limiter portion 18 is elastically pushed out of the locking groove 36a of the locking ring portion 36 provided on the side surface of the drive gear 32 against the urging force of the urging member 37 and detached. To do. That is, when the motor unit 30 of the drive mechanism unit 17 is driven and a load greater than a predetermined value, that is, a load greater than the urging force of the urging member 37 is applied to the drive gear 32, the pin attached to the rotating shaft 34 The member 35 is elastically pushed out from the engaging groove 36a of the engaging ring portion 36 against the urging force of the urging member 37, the rotation of the rotating shaft 34 is not transmitted to the driving gear 32, and the driving gear 32 is idling. To do.

  In this state, even if the pin member 35 rotates together with the rotating shaft 34 and engages with the locking groove 36 a positioned next to the locking ring portion 36, the pin member 35 again receives the biasing force of the biasing member 37. Against this, it elastically separates from the locking groove 36a of the locking ring portion 36. For this reason, when the roller holding portion 26 of the holding member 22 is in contact with the end of the first slit groove 24 of the rotating convex portion 21 and the rotational movement of the rotating convex portion 21 is stopped, the motor of the drive mechanism portion 17 is stopped. Even if the rotating shaft 34 is rotated by the portion 30, the rotation is not transmitted to the drive gear 32. Thereby, the rotation of the motor unit 30 can be released well by the torque limiter unit 18.

  Further, in the support device 15 that supports the input display unit 2, the input display unit 2 can be operated even when the motor unit 30 of the drive mechanism unit 17 is operating or when the motor unit 30 is stopped. The unit case 5 can be freely tilted manually by the operator. That is, when the motor unit 30 of the drive mechanism unit 17 is in a driving state, the support device 15 is subjected to a load greater than a predetermined value, that is, a load greater than the urging force of the urging member 37 applied to the rotation support mechanism unit 16. In addition, the driving force generated by the motor unit 30 of the drive mechanism unit 17 is released by the torque limiter unit 18 so that the operator can freely tilt the unit case 5 by manual operation.

  At this time, when the operator tilts the unit case 5 with a load larger than a predetermined load, that is, a biasing force greater than the biasing force of the biasing member 37 in the driving state of the motor unit 30 of the drive mechanism unit 17, The drive gear 32 is rotated by the driven gear 33. Then, the pin member 35 attached to the rotating shaft 34 is elastically pushed out from the locking groove 36 a of the locking ring portion 36 against the biasing force of the biasing member 37. For this reason, even if the drive gear 32 is rotated by the driven gear 33 of the unit case 5, the rotation of the drive gear 32 is not transmitted to the rotary shaft 34, and the drive gear 32 rotates idly.

  As described above, according to the support device 15 for the input display unit 2, the rotation support for supporting the input display unit 2 with respect to the device main body 1 in a state in which the tilt angle of the input display unit 2 with respect to the device main body 1 is variable. A mechanism 16, a drive mechanism 17 for driving the rotation support mechanism 16 to change the inclination of the input display unit 2 with respect to the device main body 1, and a predetermined value determined by the drive state of the drive mechanism 17. When the load is applied to the rotation support mechanism unit 16, the torque limiter unit 18 that releases the driving force of the drive mechanism unit 17 is provided, so that a complicated control circuit is not required, and input is displayed safely and smoothly. The unit 2 can be inclined at a predetermined inclination angle.

  That is, in the support device 15, the rotation support mechanism 16 is operated by the drive mechanism 17 so that the input display unit 2 can be smoothly and satisfactorily rotated with respect to the device body 1 and driven. When the rotation support mechanism unit 16 is operated by the mechanism unit 17 and a load exceeding a predetermined value is applied to the rotation support mechanism unit 16, the torque limiter unit 18 releases the driving force of the drive mechanism unit 17. The rotation support mechanism 16 can be idled.

  Therefore, a complicated control circuit is not required, and the input display unit 2 can be tilted at a predetermined tilt angle safely and smoothly, and the input display unit 2 can be tilted automatically by the drive mechanism unit 17. In addition, since the rotation support mechanism 16 can be forcibly rotated by the torque limiter 18, the operator can freely change the inclination of the input display unit 2 by manual operation.

  Further, in the support device 15, the rotation support mechanism portion 16 includes a support recess 20 formed in a substantially semicircular arc shape from the upper surface to the side surface of the device main body 1, and the lower surface of the unit case 5 in the input display unit 2. And a rotating convex portion 21 formed so as to project in a substantially semi-cylindrical shape. The rotating convex portion 21 is arranged on the supporting concave portion 20 so as to be rotatable. The rotation convex portion 21 can be smoothly rotated along the shape of the concave curved surface, and the unit case 5 can be tilted satisfactorily.

  In this case, a guide roller 29 is provided in the apparatus main body 1 at a location corresponding to the support recess 20, and a part of the guide roller 29 protrudes from the guide insertion hole 29 a of the support recess 20 toward the rotation protrusion 21. A part of the protruding guide roller abuts on the outer peripheral surface of the rotating convex portion 21 and supports the rotating convex portion 21 so that the rotating convex portion 21 can rotate and move in this state. In doing so, the frictional resistance of the rotating convex portion 21 against the supporting concave portion 20 can be reduced by the guide roller 29, whereby the rotating convex portion 21 can be smoothly and satisfactorily rotated.

  In addition, the rotation support mechanism portion 16 includes a holding member 22 that holds the rotation protrusion 21 in a state in which the rotation protrusion 21 can be rotationally moved to the support recess 20, so that the rotation protrusion 21 disposed on the support recess 20 is provided. The support recess 20 can be satisfactorily held, and can be stably rotated along the concave curved surface of the support recess 20 in this state, whereby the unit case 5 can be tilted smoothly and satisfactorily. be able to.

  That is, the holding member 22 has a roller 23 that relatively rotates and moves along the inner peripheral surface of the rotating convex portion 21, and one end portion is rotatably attached to the shaft 23 a of the roller 23, and the other end portion is rotated. The rotating convex portion 21 is supported by including a roller holding portion 26 that is inserted into the supporting concave portion 20 through the first slit groove 24 of the convex portion 21 and the second slit groove 25 of the supporting concave portion 20. While being able to hold | maintain reliably and favorably with respect to the recessed part 20, the rotation convex part 21 can be smoothly rotated and moved along the support recessed part 20 in the stable state.

  In this case, since the roller 23 can be pressed against the inner peripheral surface of the rotating convex portion 21 by the roller holding portion 26 attached to the inside of the supporting concave portion 20, the rotating convex portion 21 is good against the supporting concave portion 20. Can be held in. Further, since the holding member 22 relatively moves along the inner peripheral surface of the rotating convex portion 21 while the roller 23 rotates when the rotating convex portion 21 rotates along the supporting concave portion 20, The rotating convex portion 21 can be rotated and moved smoothly and well along the supporting concave portion 20 in a stable state.

  Further, according to the support device 15 of the input display unit 02, the drive mechanism unit 17 is changed from the motor unit 30 provided in the device main body 1 and the opening 31 provided in the support recess 20 to the rotary projection 21. Driven by the motor unit 31 in this state and partially rotated toward the drive gear 32, and provided on the outer peripheral surface of the rotary convex portion 21 facing the support concave portion 20 along the circumferential direction and driven. By providing a driven gear 33 that is engaged with a part of the gear portion 32 and rotates together with the rotating convex portion 21, the rotating convex portion 21 is automatically rotated by the motor portion 30 and the unit case 5 is tilted well. be able to.

  That is, the drive mechanism unit 17 is rotated by the drive gear 32 being driven by the motor unit 30, and the rotation is transmitted to the driven gear 33 provided on the outer peripheral surface of the rotation convex portion 21 along the circumferential direction. Then, the driven gear 33 rotates and moves according to the rotation of the drive gear 32. Therefore, the rotating convex portion 21 is stabilized along the supporting concave portion 20 in a stable state as the driven gear 33 rotates. Can be rotated.

  In this case, the driven gear 33 is an arcuately curved rack gear provided on the outer peripheral surface of the rotating convex portion 21, and the drive gear 32 is a small gear whose curvature radius is significantly smaller than that of the driven gear 33. When the drive gear 32 is engaged with the driven gear 33 and rotated, the rotational movement speed of the driven gear 33 can be made slower than the rotational speed of the drive gear 32 and decelerated. For this reason, since the rotation convex part 21 can be rotated slowly, the unit case 5 can be tilted slowly and the unit case 5 can be tilted safely in a stable state.

  Further, according to the support device 15 of the input display unit 02, the torque limiter unit 18 is driven by the drive mechanism unit 17 to rotate and the rotary shaft 34 is rotatable in the circumferential direction. And a drive gear 32 attached so as to be slidable in the axial direction, a pin member 35 which is an engaging portion attached to the rotary shaft 34 and rotates together with the rotary shaft 34, and provided on a side surface of the drive gear 32. A locking ring portion 36 with which the pin member 35 is detachably engaged, and a biasing member 37 for biasing the drive gear 32 in a direction in which the pin member 35 is engaged with the locking ring portion 36 are provided. As a result, when a load exceeding a predetermined value in the drive state of the drive mechanism portion 17 is applied to the rotation support mechanism portion 16, the drive force of the drive mechanism portion 17 can be reliably and satisfactorily released. .

  In other words, according to the torque limiter portion 18, the locking ring portion 36 of the drive gear 32 is elastically pressed against the pin member 35 by the biasing force of the biasing member 37, and a plurality of the locking ring portions 36 are provided. When the rotation shaft 34 is driven and rotated by the motor unit 30 in a state where the pin member 35 is engaged with any one of the locking grooves 36a, the rotation of the rotation shaft 34 is reliably and satisfactorily performed by the drive gear 32. Thus, the unit case 5 can be safely erected while being gradually tilted.

  Further, according to the torque limiter unit 18, if a load greater than a predetermined value in the drive state of the drive mechanism unit 17, that is, a load greater than the urging force of the urging member 37, is applied to the rotation support mechanism unit 16. The pin member 35 can be elastically pushed out of the locking groove 36 a of the locking ring portion 36 of the drive gear 32 against the urging force of the member 37, so that the rotation of the rotary shaft 34 is rotated. Thus, the drive gear 32 can be reliably idled.

  For this reason, even if the rotation shaft 34 is rotated by the motor unit 30 of the drive mechanism unit 17, the rotation is not transmitted to the drive gear 32, and the driving force of the motor unit 30 can be released well by the torque limiter unit 18. it can. Thereby, since the load more than necessary is not applied to the motor unit 30, the motor unit 30 is seized, the drive gear 32, the rotating shaft 34, etc. are prevented from being damaged, and the drive mechanism unit 17 is prevented from malfunctioning. Can do.

  Further, according to the torque limiter unit 18, the unit case 5 of the input display unit 2 can be mounted even when the motor unit 30 of the drive mechanism unit 17 is operating or when the motor unit 30 is stopped. Can be tilted freely by manual operation.

  That is, when the unit case 5 is tilted with a predetermined load in the drive state of the motor unit 30 of the drive mechanism unit 17, that is, with a force larger than the urging force of the urging member 37, it is driven by the driven gear 33 of the rotating convex portion 21. Although the gear 32 rotates, the pin member 35 of the rotating shaft 34 is elastically pushed out of the locking groove 36a of the locking ring portion 36 against the urging force of the urging member 37. The drive gear 32 can be idled without being transmitted to the rotating shaft 34, whereby the unit case 5 can be freely tilted manually.

  In the above-described embodiment, the pin member 35 having the torque limiter portion 18 attached to the rotating shaft 34 is moved by the urging force of the urging member 37 into the locking groove 36 a of the locking ring portion 36 provided in the drive gear 32. Although the case where the engagement is detachably described has been described, the present invention is not limited thereto, and a fixing plate is provided on the rotating shaft 34, and the fixing plate is elastically removably engaged with the engagement groove 36a of the engagement ring portion 36. The structure which provided the protrusion part to engage may be sufficient.

  In such a torque limiter portion, when a load more than the degree that the protrusion of the fixing plate elastically engages with the locking groove 36a of the locking ring portion 36 is applied to the drive gear 32, the load is fixed by the load. By elastically deforming the projecting portion, the driving force of the driving mechanism portion 17 can be released, and the driving gear 32 can be idled with respect to the rotating shaft 34. Therefore, it is not necessary to use the biasing member 37. The number of parts can be reduced.

  In addition, the torque limiter unit is not limited to this, and for example, a partial cross-sectional shape of the rotating shaft 34 and a hole shape of the shaft hole of the drive gear 32 with which the rotating shaft 34 is fitted may be a square shape, a pentagon shape, a hexagon shape, etc. It is formed in a non-circular shape such as a polygonal shape or an elliptical shape, and the drive gear 32 is made of synthetic resin, and the shaft hole of the drive gear 32 is elastically deformed to be elastically deformable. There may be.

  In such a torque limiter unit, when a load greater than the degree that the shaft hole of the drive gear 32 is elastically deformed is applied to the drive gear 32, the shaft hole of the drive gear 32 is elastically deformed by the load, thereby driving mechanism The driving force of the portion 17 can be released, and the driving gear 32 can be idled with respect to the rotating shaft 34. Therefore, in this torque limiter portion, it is not necessary to use the biasing member 37, so the number of parts is reduced. be able to.

  Furthermore, in the above-described embodiment, the case where the present invention is applied to an electronic register has been described.

As mentioned above, although one Embodiment of this invention was described, this invention is not restricted to this, The invention described in the claim and its equal range are included.
The invention described in the claims of the present application will be appended below.

(Appendix)
According to the first aspect of the present invention, in a state where the tilt angle of the display unit with respect to the device main body is variable, the rotation support mechanism portion that supports the display unit with respect to the device main body, and the rotation support mechanism portion are driven. A drive mechanism for changing the inclination of the display unit relative to the device main body, and the drive mechanism when a load greater than a predetermined value is applied to the rotation support mechanism in the drive state of the drive mechanism. And a torque limiter part for releasing the driving force of the part.

  According to a second aspect of the present invention, in the support device for the display unit according to the first aspect, the rotation support mechanism is formed so as to be recessed in a substantially semicircular arc shape from the upper surface to the side surface of the device body. It comprises a concave portion and a rotating convex portion formed in a substantially semi-cylindrical shape on the lower surface of the display unit, and the rotating convex portion is arranged in a state of being rotatable on the supporting concave portion. This is a support device for the display unit.

  According to a third aspect of the present invention, in the display unit support device according to the second aspect, in the state where the support concave portion is in contact with the outer peripheral surface of the rotary convex portion, the rotary convex portion with respect to the support concave portion A display unit support device, characterized in that a guide roller is provided that rotates in accordance with the rotational movement of the display unit.

  According to a fourth aspect of the present invention, in the display unit support device according to the second or third aspect of the present invention, the display unit support device includes a holding member that holds the rotating convex portion in a state of being rotatable and movable in the supporting concave portion. This is a display unit support device.

  According to a fifth aspect of the present invention, in the display unit support device according to the fourth aspect, the holding member includes a roller that relatively rotates along the inner peripheral surface of the rotating convex portion, and a shaft of the roller. One end portion is rotatably attached to the roller holding portion, and the other end portion is inserted into the inside of the support recess through the first slit groove of the rotation protrusion and the second slit groove of the support recess, and attached to the roller holding portion. A display unit support apparatus comprising the display unit.

  The invention according to claim 6 is the display unit support device according to any one of claims 1 to 5, wherein the drive mechanism section includes a motor section provided in the device main body and the support recess. A part of the projection protrudes from the opening provided toward the rotary convex portion, and is driven by the motor portion in this state to rotate, and the outer peripheral surface of the rotary convex portion facing the support concave portion A display unit support device comprising: a driven gear provided along a circumferential direction and having a part of the drive gear meshing with each other and rotating together with the rotating convex portion.

  According to a seventh aspect of the present invention, in the display unit support device according to any one of the first to sixth aspects, the torque limiter unit is driven by the drive mechanism unit and rotates. The drive gear attached to the rotating shaft in a circumferentially rotatable state, an engaging portion provided on the rotating shaft, and an elastic force provided on the driving gear so that the engaging portion can be engaged and disengaged. The display unit supporting device is provided with a locking portion that is engaged with the display unit.

  According to an eighth aspect of the present invention, in the display unit support device according to the seventh aspect, the drive gear of the torque limiter unit is slidable in the circumferential direction on the rotary shaft and slid in the axial direction. The engaging portion of the torque limiter portion is a pin member attached to the rotating shaft, and the locking portion of the torque limiter portion is provided on a side surface of the drive gear. And the biasing force of the biasing member is biased toward the direction in which the pin member is detachably engaged.

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Input display unit 5 Unit case 6 Touch input display part 15 Support apparatus 16 Rotation support mechanism part 17 Drive mechanism part 18 Torque limiter part 20 Support recessed part 21 Rotation convex part 22 Holding member 23 Roller 24 1st slit groove 25 1st 2 slit grooves 26 roller holding portions 27 guide ribs 30 motor portions 31 support recess opening portions 32 driving gears 33 driven gears 34 rotating shafts 35 pin members 36 locking ring portions 36a locking grooves 37 biasing members

Claims (8)

A rotation support mechanism that supports the display unit with respect to the device body in a state in which the tilt angle of the display unit with respect to the device body is variable;
A drive mechanism for driving the rotation support mechanism to change the inclination of the display unit with respect to the device body;
A torque limiter that releases the driving force of the drive mechanism when a load greater than a predetermined amount is applied to the rotation support mechanism in the drive state of the drive mechanism;
A display unit support device comprising:   The display unit support device according to claim 1, wherein the rotation support mechanism portion is formed on a support concave portion formed in a substantially semicircular arc shape from an upper surface to a side surface of the device main body, and on a lower surface of the display unit. A display unit support apparatus, comprising: a rotation convex portion protruding in a substantially semi-cylindrical shape, wherein the rotation convex portion is disposed on the support concave portion so as to be rotatable.   3. The display unit support device according to claim 2, wherein the support recess is in contact with an outer peripheral surface of the rotation protrusion, and rotates with the rotational movement of the rotation protrusion with respect to the support recess. A support device for a display unit, comprising a roller.   4. The display unit support device according to claim 2, further comprising a holding member that holds the rotating convex portion in a state of being rotatable and movable in the supporting concave portion. .   5. The display unit support device according to claim 4, wherein the holding member is a roller that relatively rotates along the inner peripheral surface of the rotating convex portion, and one end portion is rotatably attached to the shaft of the roller. And the other end portion is provided with a roller holding portion that is inserted and attached to the inside of the support recess through the first slit groove of the rotating projection and the second slit groove of the support recess. Support device for display unit.   6. The display unit support apparatus according to claim 1, wherein the drive mechanism section rotates from a motor section provided in the device main body and an opening section provided in the support recess. A part of the projection protrudes toward the convex portion, and in this state, the drive gear is rotated by being driven by the motor portion, and is provided along the circumferential direction on the outer peripheral surface of the rotational convex portion facing the support concave portion, A display unit supporting device comprising: a driven gear that meshes with the part of the drive gear and rotates together with the rotating convex portion.   7. The display unit support device according to claim 1, wherein the torque limiter unit is rotated by a rotation shaft that is driven by the drive mechanism unit to rotate, and the rotation shaft rotates in a circumferential direction thereof. The drive gear attached in a possible state, an engaging portion provided on the rotating shaft, and a locking portion provided on the drive gear and elastically engaged with the engaging portion so as to be detachable. A display unit support device comprising:   The display unit support device according to claim 7, wherein the drive gear of the torque limiter unit is attached to the rotating shaft in a state of being rotatable in a circumferential direction and a state of being slidable in an axial direction. The engaging portion of the torque limiter portion is a pin member attached to the rotating shaft, and the locking portion of the torque limiter portion is provided on a side surface of the drive gear, and the biasing force of the biasing member And the pin member is biased toward the direction in which the pin member is detachably engaged.

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