JP6021730B2 - System trolley - Google Patents

Description

  The present invention relates to a system trolley equipped with various devices to which an endoscope is connected and configured to be movable in that state.

  In a conventional endoscope system, various devices for connecting an endoscope, for example, external devices such as a control unit, a video processor, a light source device, and a display device are mounted and configured to be movable in that state. Is generally put to practical use.

  In a conventional system trolley, as a means for mounting a display device having a thin monitor panel, for example, an arm device for attaching a monitor is provided on an upper part of a trolley, a side part or the like. As a configuration of the monitor mounting arm device, for example, there is a configuration in which each arm member is configured to be extendable and contractable by connecting a plurality of arm members via joint portions. A conventional system trolley equipped with this type of monitor mounting arm device deploys each arm member in accordance with the state of the endoscope system to be mounted (the state of use or the state of movement, storage, etc.) By being folded, it is configured such that settings such as directing the display screen of the display device attached to the tip of the arm member in a desired direction can be easily performed.

  Various types of monitor mounting arm devices for mounting a display device having a thin monitor panel have been proposed by, for example, Japanese Patent Application Laid-Open No. 2009-125371, Japanese Patent Application Laid-Open No. 2007-97775, etc. It has been put into practical use.

  The monitor mounting arm device disclosed in the above Japanese Patent Application Laid-Open No. 2009-125371 and the above Japanese Patent Application Laid-Open No. 2007-97775 is for mounting a display device in an ultrasonic diagnostic apparatus. Japanese Patent Application Laid-Open No. 2009-125371 discloses that the display device and the support arm mechanism can be maintained in a posture suitable for the situation while using the support arm mechanism having a high degree of freedom. Specifically, for example, the support arm mechanism is provided with a mechanism capable of setting the posture of the arm unit supporting the display device to a fixed state (locked state) or releasing the fixed state. Thereby, the display screen of the display device during use of the system can be held in a posture that is easy for the user to observe. Further, in the above-mentioned Japanese Patent Application Laid-Open No. 2007-97775, the display device supported by the arm unit is fixed in a largely inclined posture, or the storage state is fixed so that the display device and the arm mechanism do not protrude from the device width. By doing so, it has been devised so that a forward view at the time of trolley movement can be secured or a form suitable for movement can be obtained.

  On the other hand, conventional system trolleys are generally put into practical use so that they can be easily moved even when they are equipped with a structural unit of an endoscope system that is relatively heavy by providing casters. Yes.

  However, when the endoscope system is used, it is desirable that the trolley itself can be fixedly installed at a predetermined position without moving. Therefore, a conventional system trolley equipped with a mechanism for locking casters used at the time of movement is disclosed in, for example, the above-mentioned Japanese Patent Application Laid-Open No. 9-10169, and is generally put into practical use.

  The system trolley disclosed by the above Japanese Patent Application Laid-Open No. 9-10169 discloses a mechanism for detecting a holding state of an installed endoscope or the like and interlocking a caster lock mechanism according to the detection result. .

JP 2009-125371 A JP 2007-97775 A Japanese Patent Laid-Open No. 9-10169

  In a conventional system trolley equipped with a monitor mounting arm, when moving, the monitor mounting arm is normally folded and arranged at a position where the display device is substantially integrated with the system trolley. The monitor mounting arm can be extended and contracted with a relatively light force so that the user can easily use it. From this, when the system trolley moves, for example, when the system trolley turns right or left from a straight movement state, the folded arm moves due to the centrifugal force applied to the system trolley, which is not intended. The arm may expand.

  Therefore, in the system trolley of the conventional form, the trolley is pushed and walked while holding the arm or the like that may move during the movement with the user's attention while moving. In this case, since the user must press the system trolley with the other hand while holding the arm or the like with one hand, there is a problem that the burden on the user at the time of movement increases.

  In the case of a system trolley equipped with casters, it is desirable that the casters be in a free state during movement, while the casters are securely locked during use of the endoscope system. However, in the case of a conventional system trolley with a caster, the operation to set the lock state or the operation to release the lock is generally performed arbitrarily by the user each time, so the user forgets to operate it. There was much possibility that etc. occurred.

  The present invention has been made in view of the above-described points, and the object of the present invention is according to the use situation (during use, at the time of movement, at the time of storage, etc.) without the user being particularly conscious. The monitor mounting arm is in an appropriate state (deployed state, locked state, unlocked state, etc.) and can be maintained so that it is easy to operate while ensuring safety during movement. Is to provide a system trolley.

  In order to achieve the above object, a system trolley according to one embodiment of the present invention includes a housing including an area in which stored items can be stored, an arm portion extending outside the housing, and a lock of the arm portion. A locking mechanism for releasing, a gripping part for gripping when moving the housing, an operation part capable of fixing and releasing the locking mechanism in accordance with a gripping operation to the gripping part, and the operation part And an interlocking unit that performs a fixing operation and a releasing operation of the lock mechanism in accordance with the operation.

  According to the present invention, the state of the monitor mounting arm (deployed state, locked state, unlocked state, etc.) according to the usage situation (during use, movement, storage, etc.) without special awareness by the user. It is possible to provide a system trolley that takes the operability into consideration while ensuring the safety during movement.

The external appearance perspective view from the substantially front side of the state (state at the time of a movement) which accommodated the monitor mounting arm apparatus of the system trolley of the 1st Embodiment of this invention. FIG. 2 is an external front view of the system trolley according to the first embodiment of the present invention in a state in which the monitor mounting arm device is housed (a state during movement). FIG. 3 is an external perspective view of the system trolley according to the first embodiment of the present invention from the substantially front side in a state where the monitor mounting arm device is extended (in use). The front view of the state (state at the time of use) which extended the monitor mounting arm apparatus of the system trolley of the 1st Embodiment of this invention The rear view of the system trolley of the 1st embodiment of the present invention The principal part expansion block diagram which expands and shows the arrangement | positioning site | part of the movement handle of the system trolley of the 1st Embodiment of this invention, and also shows the internal structure The conceptual diagram which shows arrangement | positioning of the wire in the system trolley of the 1st Embodiment of this invention The internal structure of the joint part (part shown with the code | symbol [8] of FIG. 7) of the 2nd arm apparatus in the system trolley of the 1st Embodiment of this invention is shown, and the state (expanded state) of the 2nd arm apparatus extended Conceptual diagram The conceptual diagram which shows the internal structure which looked at the joint part of the 2nd arm apparatus in the system trolley of the 1st Embodiment of this invention from the code | symbol [9] direction of FIG. The internal structure of the joint part (part shown with the code | symbol [8] of FIG. 7) of the 2nd arm apparatus in the system trolley of the 1st Embodiment of this invention is shown, and the 2nd arm apparatus is in the bent state (accommodated state). Conceptual diagram The conceptual diagram ((A) is a monitor with which the display apparatus was attached) which shows schematic structure of the state (expanded state) where the 2nd arm apparatus was extended among the monitor attachment arm apparatuses in the system trolley of the 2nd Embodiment of this invention. Schematic of the entire mounting arm device (second arm device). (B) is an enlarged view of the internal structure of each joint part of (A)). The conceptual diagram ((A) which attached the display apparatus is a schematic diagram showing a schematic configuration of the second arm device in the monitor mounting arm device in the system trolley of the second embodiment of the present invention in which the second arm device is bent (stored state). Schematic of the entire monitor mounting arm device (second arm device) (B) is an enlarged view of the internal configuration of each joint part of (A). The conceptual diagram which shows the internal structure seen from the code | symbol [13] direction of FIG.12 (B). The conceptual diagram which shows arrangement | positioning of the wire in the system trolley of the 3rd Embodiment of this invention The conceptual diagram which expands the caster in the system trolley of the 3rd Embodiment of this invention, and shows the outline of the internal structure The conceptual diagram which shows schematic arrangement | positioning while showing schematic structure of the system trolley of the 4th Embodiment of this invention The block block diagram which shows the outline of the electrical structure in the system trolley of the 4th Embodiment of this invention. The conceptual diagram which shows the outline of the internal structure of the joint part vicinity of the monitor attachment arm apparatus in the system trolley of the 4th Embodiment of this invention (The figure seen from the code | symbol [18] direction of FIG. 19). The conceptual diagram which shows the outline of the internal structure of the joint part vicinity of the arm apparatus for monitor attachment in the system trolley of the 4th Embodiment of this invention (The figure seen from the code | symbol [19] direction of FIG. 18).

The present invention will be described below with reference to the illustrated embodiments.
In each drawing used for the following description, each component may be shown with a different scale in order to make each component large enough to be recognized on the drawing. Therefore, according to the present invention, the number of constituent elements, the shape of the constituent elements, the ratio of the constituent element sizes, and the relative positional relationship of the constituent elements described in these drawings are limited to the illustrated embodiments. It is not a thing.

[First Embodiment]
1 to 5 are external views showing a system trolley according to a first embodiment of the present invention. Of these, FIGS. 1 and 2 show a state in which the monitor mounting arm device of the system trolley of this embodiment is housed (a state during movement), FIG. 1 is a perspective view from a substantially front side, and FIG. It is a front view. 3 and 4 show a state in which the monitor mounting arm device of the system trolley is extended (in use), FIG. 3 is a perspective view from a substantially front side, and FIG. 4 is a front view. is there. FIG. 5 is a rear view of the system trolley as viewed from the back side. In FIG. 5, one monitor mounting arm device (main) is in the retracted state, and the other monitor mounting arm device (sub) is in the extended state.

  First, a schematic configuration of the system trolley of the present embodiment will be described below mainly using FIGS.

  1 to 5, the system trolley 1 of this embodiment includes a plurality of shelves 24a, 24b, 24c, 24d, a main frame 27, a plurality of frame members (not shown), and the like. Is formed by a frame structure so that each of the various constituent units constituting the endoscope system (not shown) can be mounted and installed on each of the shelves (24a to 24d). In short, the system trolley 1 is formed as a housing having an area in which storage items such as an endoscope system can be stored.

  Here, various constituent units constituting the endoscope system include, for example, various devices that connect the endoscope, for example, external devices such as a control unit, a video processor, a light source device, and a display device. Of the various constituent units constituting the endoscope system, the external device directly related to the present invention is a display device. Therefore, in FIGS. 1 to 5, only two display devices (main monitor 11 and sub-monitor 12) are shown in particular in the various constituent units constituting the endoscope system in order to avoid complication of the drawings. The illustration of other structural units is omitted, and the detailed description thereof is also omitted in the following description.

  In addition, if it is set as the state which mounts the various structural units etc. which comprise an endoscope system with respect to the system trolley 1 of this embodiment, the said endoscope system will be in a usable state in the state. Similarly, in the state in which various constituent units constituting the endoscope system are mounted on the system trolley 1, when the endoscope system is not used, it can be moved in that state. Casters 23 are attached to the four corners of the lowest shelf 24d.

  Further, on the bottom surface side of the lowermost shelf 24d, for example, a power supply unit 26 that receives power supply from an external power supply (AC 100V or 200V) and converts it into a power supply type suitable for the endoscope system is disposed. Yes.

  The main frame 27 is provided with a plurality of monitor mounting arm devices (two in this embodiment; reference numerals 21 and 22) for mounting a display device having a thin monitor panel. Specifically, a first arm device 21 to which the main monitor 11 is attached is disposed on the main frame 27. A second arm device 22 for attaching the sub monitor 12 is disposed on one side of the main frame 27.

  As shown in FIG. 5, the first arm device 21 and the second arm device 22 are basically configured in the same manner. That is, the first arm device 21 is formed so as to be able to open and close by connecting the two arm portions 21a and 21b extending toward the outside of the housing (system trolley 1) and the two arm portions 21a and 21b. The joint support 21c, a support fixing part 21d for fixing the base end of one arm part 21a to the upper part of the main frame 27, and a monitor support for attaching and fixing the main monitor 11 to the tip part of the other arm part 21b It is comprised by the part 21e etc.

  Similarly, the second arm device 22 includes two arm portions 22a and 22b extending toward the outside of the housing (system trolley 1), a joint portion 22c connecting the two arm portions 22a and 22b, A support fixing portion 22d for fixing the base end portion of one arm portion 22a to one side portion of the main frame 27, a monitor support portion 22e for attaching and fixing the sub monitor 12 to the distal end portion of the other arm portion 22b, and the like. It is configured.

  When the first arm device 21 is in the retracted state (see FIGS. 1, 2 and 5), as shown in FIG. 5, a part of the monitor support part 21e and a part of the support fixing part 21d As a result of the engagement state, an engagement fixing mechanism is formed that maintains the storage state of the first arm device 21 and prevents the arms 21a and 21b from unintentionally expanding.

  Here, in the present embodiment, the storage state of the first arm device 21 (see FIGS. 1, 2, and 5) is specifically such that the two arm portions 21 a and 21 b overlap in the vertical direction. The state to be arranged shall be said. The unfolded state of the first arm device 21 refers to a state in which the two arm portions 21a and 21b are relatively moved from the above-described housed state, and the two arm portions 21a and 21b as shown in FIGS. Is a state including various forms until it is in a state of being arranged so as to extend substantially linearly.

  Similarly, the storage state of the second arm device 22 in this embodiment (see FIGS. 1 and 2) is specifically arranged so that the two arm portions 22a and 22b are in a substantially perpendicular positional relationship. Shall be referred to as the state. Further, the unfolded state of the second arm device 22 refers to a state in which the angle formed by the two arm portions 22a and 22b has moved from the substantially right angle (angle of about 90 degrees) to the opening direction from the above-described housed state. As shown in FIGS. 4 and 5, the two arm portions 22a and 22b are in a state including various forms until the two arm portions 22a and 22b are arranged so as to extend substantially linearly.

  In addition, the uppermost shelf 24a of the system trolley 1 is formed with a moving handle 25 that is a gripping part for a user to hold and grip the system trolley 1 when moving the system trolley 1. The moving handle 25 is provided, for example, at the peripheral edge of the uppermost shelf 24a, and is formed in a loop shape so as to project outward from the peripheral edge in a direction substantially parallel to the shelf surface of the shelf 24a. Has been. In addition, in the system trolley 1 of this embodiment, the example provided with two movement handles 25 is shown.

  Here, FIG. 6 is an enlarged configuration diagram of a main part showing an enlarged configuration part of the moving handle of the system trolley of the present embodiment and also showing an internal configuration thereof. As shown in FIG. 6, a lever 31 is disposed in the loop-shaped inner portion of the moving handle 25. The lever 31 is an operation unit that can perform a fixing operation and a releasing operation of a locking mechanism (described later) of the arm unit in accordance with a gripping operation on the moving handle 25 (gripping unit). The lever 31 may be provided on at least one of the two moving handles 25.

  The lever 31 is provided on the inner side of the moving handle 25 so as to be swingable about a support shaft 31a serving as a fulcrum. One arm 31 b of the lever 31 is a part serving as a power point that the user grips together with the moving handle 25. One end 32a of the wire 32 is fixed by a wire retaining pin 35a to one end (operation point) of the other arm 31c extending across the support shaft 31a in a direction opposite to the one arm 31b.

  The wire 32 is inserted into a tubular insertion passage 33 formed so as to insert a frame member (including the main frame 27) constituting the system trolley 1 from the inside of the movement handle 25.

  With this configuration, when the user grips one arm 31b of the lever 31 together with the moving handle 25, the lever 31 swings in the direction of arrow A in FIG. 6 about the support shaft 31a. Then, one end 32a of the wire 32 fixed to one end of the other arm 31c of the lever 31 moves in the direction of arrow B in FIG. Accordingly, the wire 32 is pulled in the directions of arrows C and D in FIG. In this case, at a bending point (see, for example, reference numerals 33a and 33b in FIG. 6) where the traveling direction of the wire 32 in the frame is changed so that the wire 32 in the insertion path 33 can move smoothly. A guide shaft 34 is implanted. Thus, the wire 32 functions as an interlocking unit that performs a fixing operation and a releasing operation of the locking mechanism of the arm unit in accordance with the operation of the lever 31 (operation unit).

  Here, FIG. 7 is a conceptual diagram showing the arrangement of wires in the system trolley of the present embodiment. One end 32a of the wire 32 is fixed to one end portion of the other arm 31c of the lever 31 provided on the moving handle 25 as described above, and the wire 32 is inserted from here into the frame member. 7 branches in two directions at a portion indicated by reference numeral 27a. The portion indicated by reference numeral 27a is called a branch point. One of the wires 32 branched at the branch point 27a passes through the main frame 27 and reaches the joint portion 21c through the arm portion 21a of the first arm device 21, where the end of the wire 32 has a predetermined end. It is fixed to the part (details will be described later). The other end of the wire 32 is inserted through the main frame 27 to reach the joint portion 22c through the arm portion 22a of the second arm device 22, where the end is fixed at a predetermined portion (details). Will be described later).

  8, FIG. 9, and FIG. 10 are conceptual diagrams showing an internal configuration of a joint portion (portion indicated by reference numeral [8] in FIG. 7) of the second arm device in the system trolley of the present embodiment. 8 and 10 are views of the joint portion viewed from the side, and FIG. 9 is a view of the joint portion viewed from the direction [9] in FIG. 8 and 9 show a state where the second arm device is extended (deployed state), and FIG. 10 shows a state where the second arm device is bent (stored state).

  As described above, in the second arm device 22, the two arm portions 22a and 22b are connected via the joint portion 22c. Specifically, the distal end portion of one arm portion 22a and the proximal end portion of the other arm portion 22b are connected. A concave portion 22ab is formed at the distal end portion of one arm portion 22a, and a convex portion 22bb that can be engaged with the concave portion 22ab at the distal end portion of the arm portion 22a at the proximal end portion of the other arm portion 22b. Is formed. A through hole 22bc is formed in the convex portion 22bb of the arm portion 22b. Further, a concave hole 22ac is formed at a substantially central portion of the bottom of the concave portion 22ab of the arm portion 22a.

  As shown in FIG. 8, the two arm portions 22a and 22b have the joint shaft member 22ca in the through hole 22bc and the concave hole portion 22ac in a state where the convex portion 22bb is engaged with the concave portion 22ab. It is arranged through. Thereby, the two arm portions 22a and 22b are connected to each other in a rotatable state with the joint shaft member 22ca as a rotation center.

  A locking hole 22ad is formed in a predetermined portion on the inner peripheral surface of the concave portion 22ab. The lock pin portion 36c of the arm lock member 36 disposed along the periphery of the distal end portion of the arm portion 22a is engaged with the locking hole 22ad in a loosely fitting state in which the lock pin portion 36c can be inserted and removed. The arm lock member 36 includes the lock pin portion 36c, a connecting portion 36b bent in a direction orthogonal to the lock pin portion 36c, and a direction orthogonal to the connecting portion 36b and the lock pin portion 36c and a wire connection portion 36a formed so as to extend in the same direction, and is a component composed of, for example, a metal member. An urging spring 37 is wound around the lock pin portion 36 c of the arm lock member 36. The urging spring 37 constantly urges the arm lock member 36 in the axial direction of the lock pin portion 36c and in the direction of arrow F shown in FIG. On the other hand, the other end 32b of the wire 32 is fixed by a wire retaining pin 35b in the vicinity of the end of the wire connecting portion 36a of the arm lock member 36. Therefore, with this configuration, when the user holds the arm 31b of the lever 31 together with the moving handle 25 as described above, the wire 32 is pulled in the directions of arrows C and D in FIG. This indicates that the wire 32 is pulled in the direction of arrow E in the portions shown in FIGS. Then, at this time, the wire 32 pulls the arm lock member 36 in the direction of arrow E in FIGS. Receiving this, the arm lock member 36 moves in the direction of arrow E against the biasing force (in the direction of arrow F) of the biasing spring 37.

  Further, when the second arm device 22 is in the retracted state, it is a portion facing the locking hole 22ad of the arm portion 22a, and a part on the outer peripheral surface of the convex portion 22bb of the arm portion 22b. As shown in FIG. 10, a fitted hole 22bd is formed. The fitted hole 22bd is set to a shape and size that can be fitted to the tip of the lock pin portion 36c.

  That is, when the user holds the moving handle 25 together with the lever 31 and pulls the wire 32 when the second arm device 22 is in the retracted state, as described above, the arm lock member 36 is shown in FIGS. The arm lock member 36 moves in the direction of arrow E against the urging force (in the direction of arrow F) of the urging spring 37. At this time, the distal end portion of the lock pin portion 36c of the arm lock member 36 is fitted into the fitted hole 22bd. Then, the two arm portions 22a and 22b of the second arm device 22 are in a locked state that cannot rotate and unfold.

At this time, when the user releases the grip of the moving handle 25 together with the lever 31, the wire 32 is relaxed. Then, the arm lock member 36 is moved by a predetermined amount in the direction of arrow F in FIG. 10 by the biasing force of the biasing spring 37. Thereby, the front-end | tip part of the lock pin part 36c remove | deviates from the to-be-fitted hole 22bd, and both fitting state is cancelled | released. Thereby, the locked state of the two arm portions 22a and 22b is also released, and the two arm portions 22a and 22b return to a state in which they can rotate relatively freely at the joint portion 22c.
As described above, the system trolley 1 according to the present embodiment includes the lock mechanism that locks and releases the arm portion.

  In the above description, the detailed configuration in the vicinity of the joint portion 22c of the second arm device 22 has been described, but the internal configuration of the first arm device 21 is substantially the same. Although a detailed description thereof is omitted, the first arm device 21 is also provided with a lock mechanism for locking and releasing the arm portion having the same configuration.

  As described above, according to the first embodiment, the lever 31 is provided in the vicinity of the moving handle 25 provided for the user to always hold when the system trolley 1 is moved. Is held together with the moving handle 25, the lock mechanism that allows the monitor mounting arm device (21, 22), which is stored in advance through the wire 32 inserted into the frame member, to be locked. Provided.

  With such a configuration, if the user previously puts the monitor mounting arm devices (21, 22) in the retracted state prior to moving the system trolley 1, an operation normally performed when the system trolley 1 is moved, That is, first, only the operation of grasping the lever 31 in accordance with the operation of grasping the moving handle 25 is performed, and the storage state of the monitor mounting arm device (21, 22) is maintained in the locked state without any particular awareness of the user. can do. Therefore, the user can eliminate troublesome actions such as suppressing the arm portion of the arm device for attaching the monitor as in the case of moving the conventional system trolley 1. That is, it is possible to contribute to improvement in movement operability while ensuring safety when the system trolley 1 is moved.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. The configuration of this embodiment is basically the same as that of the first embodiment described above, and the configuration of the monitor mounting arm device is different. Therefore, the detailed description of the same configuration as that of the above-described first embodiment will be omitted, and only different parts will be described below. In the following description of the present embodiment, the same reference numerals are used for the same components as those of the first embodiment described above.

  FIGS. 11-13 is a conceptual diagram which shows schematic structure of a 2nd arm apparatus among the monitor attachment arm apparatuses in the system trolley of the 2nd Embodiment of this invention. Among these, FIG. 11 shows a state where the monitor mounting arm device (second arm device) is extended (deployed state). FIG. 12 shows a state where the monitor mounting arm device (second arm device) is bent (stored state). 11 (A) and 12 (A) are schematic views of the entire monitor mounting arm device (second arm device) to which the display device is attached, and FIG. 11 (B) and FIG. 12 (B). These are the figures which expand and show the internal structure of each joint part of FIG. 11 (A) and FIG. 12 (A). FIG. 13 is a conceptual diagram showing an internal configuration viewed from the direction [13] in FIG.

  Among the monitor mounting arm devices in the system trolley of the present embodiment, the basic configuration of the second arm device 22A is substantially the same as the second arm device 22 in the first embodiment described above. That is, the second arm device 22A is a monitor mounting arm device for mounting the sub-monitor 12 on one side of the main frame. As shown in FIG. 11A, the second arm device 22A includes two arm portions 22Aa and 22Ab, a joint portion 22Ac connecting the two arm portions 22Aa and 22Ab, and a base of one arm portion 22Aa. A support fixing portion 22d having an end portion fixed to one side portion of the main frame, a monitor support portion 22e for attaching and fixing the sub-monitor 12 to the distal end portion of the other arm portion 22Ab, and the like.

  Here, in this embodiment, the structure of two arm part 22Aa, 22Ab and joint part 22Ac differs from the above-mentioned 1st Embodiment. That is, in the present embodiment, the planar shape of the portion that forms the joint portion 22Ac at the tip of one arm portion 22Aa is formed in a substantially circular shape as shown in FIGS. Further, as shown in FIG. 13, the cross-sectional shape of the same portion of the tip portion of the arm portion 22Aa is formed in a substantially channel shape, and the channel-shaped opening opens toward the forefront side and both side portions. It is formed as follows. A through hole 22Aac is formed in the same portion of the distal end portion of the arm portion 22Aa in a direction orthogonal to the major axis direction of the arm portion 22Aa and passing through the opening. Further, as shown in FIGS. 11 and 12, the planar shape of the portion that forms the joint portion 22Ac that is the base end portion of the other arm portion 22Ab is formed in a substantially circular shape, and the circular shape is The arm portion 22Aa is formed so as to be smaller than the circular shape of the tip portion. Further, a through hole 22Abc that penetrates in the direction orthogonal to the major axis direction of the arm portion 22Ab is formed at the base end portion of the arm portion 22Ab.

  The joint shaft member 22Aca of the joint portion 22Ac is fitted into the through hole 22Aac and the through hole 22Abc. Accordingly, the two arm portions 22Aa and 22Ab are configured to be rotatable within a predetermined range around the joint shaft member 22Aca of the joint portion 22Ac.

  A wire 32 is inserted into the arm portion 22Aa. One end 32 a on the proximal end side of the wire 32 is fixed to one end portion of the other arm 31 c of the lever 31 of the moving handle 25. This configuration is the same as that of the first embodiment described above. On the other hand, the other end 32b on the distal end side of the wire 32 is fixed to a predetermined portion inside the proximal end portion of the other arm portion 22Ab by a wire retaining pin 35c. At this time, as shown in FIGS. 11 and 12, the wire 32 is disposed along the outer periphery of the circular end portion of the arm portion 22Ab from the inner fixed portion of the other arm portion 22Ab by the wire retaining pin 35c. Then, it extends into the one arm portion 22Aa.

  In the second arm device 22A configured as described above, as shown in FIG. 11, when the user grips the moving handle 25 together with the lever 31 when the two arm portions 22Aa and 22Ab are in the extended state. The wire 32 is pulled in the direction of arrow E shown in FIGS. Then, the pulling force of the wire 32 turns the joint portion 22Ac in the closing direction and turns the other arm portion 22Ab in the direction of arrow H in FIG. As a result, the second arm device 22A is displaced from the unfolded state shown in FIG. 11 (B) to the housed state shown in FIG. 12 (B).

  That is, in the present embodiment, the user can fold the second arm device 22A in the deployed state and displace it to the stored state by performing an operation of grasping the lever 31 for moving the trolley. While the lever 31 is continuously gripped, the storage state can be maintained.

  Further, if the user stops the movement of the trolley and releases the operation of grasping the lever 31, the second arm device 22A can be displaced to the deployed state. Therefore, the user can manually deploy the two arm portions 22Aa and 22Ab of the second arm device 22A manually. Further, when the operation of grasping the lever 31 is released, the pulling force of the wire 32 only disappears, and the storage state of the second arm device 22A is maintained (not restored to the deployed state). Therefore, when the system trolley is stored in a predetermined storage chamber or the like, after the trolley is moved to a predetermined position, the lever 31 is released and the caster 23 is locked, for example.

  In the above description of the second embodiment, the detailed configuration of the vicinity of the joint portion 22Ac of the second arm device 22A has been described, but an arm folding mechanism having a similar configuration is also provided for the first arm device. Is provided.

  As described above, according to the second embodiment, the lever 31 provided in the vicinity of the moving handle 25 provided to be surely held by the user when moving the system trolley is moved to the moving handle. 25, an arm folding mechanism is provided so that the monitor mounting arm device (21, 22) can be folded through the wire 32 inserted into the frame member. did.

  With such a configuration, the user is particularly aware of only the operation of grasping the lever 31 in accordance with the normal operation when moving the system trolley, that is, the operation of grasping the moving handle 25. The deployed state of the monitor mounting arm device (21, 22) can be displaced to the retracted state. Then, by maintaining the state where the lever 31 is gripped, it is possible to continue maintaining the storage state of the arm. Therefore, when the user moves the system trolley, if the state of holding the lever 31 is maintained, the arm portion of the monitor mounting arm device does not unintentionally expand. Therefore, troublesome actions such as restraining the arm part or the like during the movement are unnecessary. In the present embodiment as well, as in the first embodiment, it is possible to contribute to the improvement in movement operability while ensuring the safety when the system trolley is moved.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. In the first and second embodiments described above, the folding mechanism that operates the lock mechanism that locks the monitor mounting arm device by holding the moving handle 25 and the lever 31 or folds it into the storage state. The example of a structure to act | operate is shown.

  On the other hand, the configuration of this embodiment is basically the same as that of the first and second embodiments described above, but in this embodiment, the caster can be obtained by gripping both the moving handle 25 and the lever 31. This is a configuration example including a caster lock mechanism that releases the lock state and locks the caster in a normal state in which the lever 31 is not gripped. Therefore, the detailed description of the same configurations as those of the above-described embodiments will be omitted, and only different parts will be described below. In the following description of the present embodiment, the same reference numerals are used for the same configurations as the configurations of the above-described embodiments.

  14 and 15 are views showing a third embodiment of the present invention. Among these, FIG. 14 is a conceptual diagram showing the arrangement of wires in the system trolley of the present embodiment. FIG. 15 is a conceptual diagram showing an outline of the internal configuration by enlarging the caster in the system trolley of the present embodiment.

  As shown in FIG. 14, the basic configuration of the system trolley 1 of the present embodiment is substantially the same as that of the above-described embodiments. In FIG. 14, the monitor mounting arm device and the display device are not shown, but the same configurations as those in the above embodiments are applied to these configurations.

  In the system trolley 1 of the present embodiment, the wire 32 has one end 32a at one end of a lever 31 provided on one of the two movement handles 25, as described in the above embodiments. The two casters out of the four casters 23 provided on the bottom surface of the system trolley 1 are branched into two directions in the middle of the frame member. 23, each end of the wire 32 is fixed to a predetermined portion of each caster 23 (details will be described later).

  Here, the detailed structure of the caster 23 will be described with reference to FIG. The caster 23 includes a leg portion 23a, a wheel portion 23b, a lever support portion 23c, a wheel stop lever 41, a lever pressing spring 42, and the like.

  The leg part 23a is a support for attaching the wheel part 23b in the vicinity of the tip part. The leg portions 23a are attached to, for example, the four corners on the bottom surface side of the lowermost shelf 24d, and are provided so as to be rotatable about an axis orthogonal to the bottom surface of the shelf 24d.

  The wheel portion 23b is a substantially disc-shaped wheel that is rotatably supported by a shaft member 23d provided in a direction substantially parallel to the bottom surface of the shelf 24d at a portion on the distal end side of the leg portion 23a. At least the outer peripheral surface of the disc shape of the wheel portion 23b is formed of a member such as rubber.

  The lever support portion 23c is formed so as to extend from a part of the leg portion 23a, and a cavity is provided so that the wire 32 can be inserted therethrough. Further, a shaft portion 43 that pivotally supports the wheel stop lever 41 is provided at the tip of the lever support portion 23c.

  The wheel stop lever 41 is brought into contact with and presses the wheel portion 23b at the tip portion, thereby braking the wheel portion 23b and locking its rotation, and the tip portion of the lever support portion 23c. It is comprised by the lever member 41b etc. which are pivotally supported by the axial part 43 of this. The brake rubber 41a is disposed at the front end portion of the lever member 41b so as to face the outer peripheral surface of the wheel portion 23b when the caster 23 is assembled.

  The end of the wire 32 is fixed to the wheel stop lever 41 by a wire retaining pin 35d. The wire 32 passes through the inside of the lever support portion 23c from the wheel stop lever 41, passes through the bottom of the shelf 24d, passes through the inside of the frame member, and reaches the lever 31 as described above. In this case, a lever pressing spring 42 is interposed between the end of the wheel stop lever 41 and the tip of the lever support portion 23 c, and the wire 32 is inserted inside the lever pressing spring 42. Note that the urging force of the lever pressing spring 42 always presses one end of the wheel stop lever 41 in the direction of arrow K in FIG. Accordingly, the wheel stop lever 41 is applied with a force to rotate in the direction of the arrow R in FIG. 15 with the shaft portion 43 as the rotation center by the urging force of the lever pressing spring 42. And the brake rubber 41a of the wheel stop lever 41 is contact | abutted on the outer peripheral surface of the wheel part 23b, and this is pressed. Thereby, the wheel stop lever 41 serves as a brake that prevents the rotation of the wheel portion 23b at the same time as the rotation of a predetermined amount or more is blocked.

  With such a configuration, in the system trolley 1 of the present embodiment, when in the normal state, that is, when the user is not holding the lever 31, the rotation of the wheel portion 23 b of the caster 23 is always prevented. The system trolley 1 is configured so as not to move due to the action of the caster 23.

  On the other hand, when the user moves the system trolley 1, if the user grasps the lever 31 together with the moving handle 25, the wire 32 is pulled and the rotation stopping force of the wheel portion 23 b by the wheel stop lever 41 of the caster 23 is released. Is done. The user is configured to be able to maintain the unlocked state of the caster 23 by continuing to hold the lever 31.

  As described above, according to the third embodiment, when the system trolley 1 is moved, the lever 31 provided in the vicinity of the moving handle 25 provided for the user to hold is always used for moving. By grasping with the handle 25, the locked state of the caster 23 can be released via the wire 32 inserted into the inside of the frame member, and when the lever 31 is not gripped, the caster 23 is always in the locked state. A caster lock mechanism is provided and configured.

  With such a configuration, the user is particularly aware of only the operation of grasping the lever 31 in accordance with the normal operation when moving the system trolley, that is, the operation of grasping the moving handle 25. Therefore, the caster 23 can be unlocked, and if the lever 31 continues to be gripped, the state can be maintained, so that the movement of the trolley can be started smoothly. Further, if the gripping of the lever 31 is stopped, the caster 23 can be immediately locked, so that it is not necessary to be aware of the lock operation or unlock operation of the caster 23 during movement or storage. Therefore, also in the present embodiment, as in the above-described embodiments, it is possible to contribute to the improvement in movement operability while ensuring the safety when the system trolley is moved. At the same time, it is easy to ensure safety during storage.

  In the third embodiment described above, the system trolley 1 having only the lock mechanism for locking or releasing the caster 23 is described. However, in addition to this, the same is applied to the other movement handle 25. By providing the lever 31, it is possible to easily arrange the lock mechanism and the arm folding mechanism of the monitor mounting arm device described in the above embodiments.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described. In each of the above-described embodiments, by holding both the moving handle 25 and the lever 31, the lock mechanism that mechanically locks the monitor mounting arm device is operated, or the folding mechanism that is folded into the storage state is operated. In addition, a configuration example for unlocking casters is shown.

  On the other hand, the configuration of the present embodiment is basically the same as that of the second embodiment described above, but in this embodiment, the monitor is electrically mounted in conjunction with the main power on / off operation. It is a structural example provided with the mechanism which operates the arm folding mechanism of an arm apparatus. Therefore, the detailed description of the same configurations as those of the above-described embodiments will be omitted, and only different parts will be described below. In the following description of the present embodiment, the same reference numerals are used for the same configurations as the configurations of the above-described embodiments.

  16-19 is a figure which shows the 4th Embodiment of this invention. Among these, FIG. 16 is a conceptual diagram showing a schematic configuration of a system trolley of the present embodiment and an arrangement of wires. FIG. 17 is a block configuration diagram showing an outline of an electrical configuration in the system trolley of the present embodiment. 18 and 19 are conceptual diagrams showing an outline of the internal configuration in the vicinity of the joint portion of the monitor mounting arm device in the system trolley of the present embodiment. 18 is a view seen from the direction [18] of FIG. 19, and FIG. 19 is a view seen from the direction [19] of FIG.

  As shown in FIG. 16, the basic configuration of the system trolley 1B of the present embodiment is substantially the same as that of the above-described embodiments. In the system trolley 1B of the present embodiment, a casing placed on the system trolley 1B, that is, an endoscope system (not shown) in a predetermined portion of the uppermost shelf 24a, for example, in the vicinity of the moving handle 25, etc. ) Is provided with a main power switch 51 for switching on and off the power supply to the power supply. The main power switch 51 is connected to the power supply unit 26 and the two power supplies 26 disposed on the bottom surface side of the lowermost shelf 24d of the system trolley 1B via an electric cable 52a (see FIG. 16) inserted through the inside of the frame member. It is electrically connected to electrical components and the like (not shown in FIG. 16; will be described later) in the monitor mounting arm device (21B, 22B).

  As shown in FIG. 17, the electrical configuration of the system trolley 1B according to the present embodiment includes the main power switch (SW) 51, the power unit 26, and the two monitor mounting arm devices (21B and 22B). It is comprised by the electrical circuit component parts.

  As described above, the power supply unit 26 is disposed on the bottom surface side of the lowermost shelf 24d of the system trolley 1B, and includes a battery 26a for supplying power to a drive motor 53, which will be described later, from the outside. In addition to the transformer 26b that performs voltage conversion of the supplied power, a control circuit that controls the power supply of the system trolley 1B is provided.

  The electric circuit components in the two monitor mounting arm devices (21B, 22B) are provided in or near the joint portion 22Bc, and the drive motor 53 for performing the closing operation of the arm portion, that is, the folding operation, There are a motor drive control board 52 that controls the drive motor 53, motor limiters 54a and 54b that detect the rotational position of the drive motor 53 in the forward and reverse rotation directions, and the like.

  With this configuration, in this embodiment, when the main power switch 51 is turned off, the instruction signal is transmitted to the motor drive control board 52. In response to this, the motor drive control board 52 performs control to supply power from the battery 26 a to the drive motor 53. Thereby, in conjunction with the turning-off operation of the main power switch 51, the arm portion is closed and folded, and the locked state is maintained.

  Here, the outline of the internal configuration of the two monitor mounting arm devices (21B, 22B) will be briefly described with reference to FIGS. As two monitor mounting arm devices, there are a first arm device 21B and a second arm device 22B in substantially the same manner as in the above embodiments. It is assumed that the internal configurations of these two monitor mounting arm devices are basically the same, and the outline thereof will be described in the following description. In the following description, the configuration of the second arm device 22B will be described because of the reference numerals.

  The second arm device 22B in the system trolley 1B of the present embodiment is the same as the above-described embodiments in that it is mainly configured by two arm portions 22Ba and 22Bb and a joint portion 22Bc. Further, the mechanical configuration of the two arm portions 22Ba and 22Bb of the present embodiment is substantially the same as that of the second embodiment described above.

  In the second embodiment described above, the lever 32 is configured such that one end 32 a of the wire 32 is fixed to the lever 31 and the other end (terminal) is fixed to the joint portion 22 c of the second arm device 22. When grasping 31, the wire 32 is pulled to perform the folding operation of the second arm device 22.

  On the other hand, in the present embodiment, one end 32a of the wire 32 is fixed to the outer peripheral surface of the pulley 53a of the drive motor 53 by a wire retaining pin 35e. The other end (end) 32b of the wire 32 is fixed to the joint 22Bc of the second arm device 22B by a wire retaining pin 35c, which is the same as that of the second embodiment. With this configuration, in this embodiment, when the main power switch 51 is turned off, the drive motor 53 starts to rotate and the pulley 53a rotates, for example, in the direction of the arrow L2 in FIG. Pulled in the direction of arrow E. Thereby, arm part 21Bb rotates in the direction of arrow L1 shown in FIG. 18, ie, the direction which folds arm part 21Bb. At this time, the rotation of the pulley 53a is detected by the motor limiter 54b. When the pulley 53a rotates by a predetermined amount and the arm portion 21Bb enters the retracted state, the motor drive control board receives the detection signal from the motor limiter 54b. 52 performs control to stop the rotational drive of the drive motor 53. At this point in time, the pulling of the wire 32 by the drive motor 53 continues with a certain amount of force, and thus the storage state (folded state) of the arm portion 21Bb continues to be maintained. On the other hand, when the main power switch 51 is turned on, the motor drive control board 52 performs control to supply power from the battery 26a to the drive motor 53, and the pulley 53a is, for example, in the direction of the arrow L2 in FIG. When rotating in the opposite direction, the wire 32 becomes loose. Thereby, arm part 21Bb will be in the state which can be displaced to a deployment state. At this time, the rotation of the pulley 53a is detected by 54a. When the pulley 53a rotates by a predetermined amount and the wire 32 becomes loose, the motor drive control board 52 receives the detection signal from the motor limiter 54a. Then, control for stopping the rotational drive of the drive motor 53 is performed.

  As described above, according to the fourth embodiment, the folding state of the monitor mounting arm device is operated in conjunction with the off / on operation of the main power switch 51, and the storage / maintenance state is maintained. Therefore, it is possible to contribute to the improvement of the movement operability while ensuring the safety when the system trolley is moved, as in the above embodiments.

  Note that the lock release mechanism of the caster 23 can also be provided in combination with the present embodiment by further providing the lever 31.

  The present invention is not limited to the above-described embodiments, and it is needless to say that various modifications and applications can be implemented without departing from the spirit of the invention. Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if several constituent requirements are deleted from all the constituent requirements shown in the above-described embodiment, if the problem to be solved by the invention can be solved and the effect of the invention can be obtained, this constituent requirement is deleted. The configured structure can be extracted as an invention.

  The present invention can be applied to, for example, an endoscope system in the industrial field in addition to an endoscope system in the medical field.

1,1B …… System trolley,
11 …… Main monitor, 12 …… Sub monitor,
21, 21B ... the first arm device,
21a, 21b, 22a, 22b, 22Aa, 22Ab, 22Ba, 22Bb ... arm part,
21c, 22c, 22Ac, 22Bc ... joint part,
21d, 22d ...... support and fixing portion,
21e, 22e …… Monitor support part,
22, 22A, 22B ... the second arm device,
23 …… Caster,
23a ... Legs, 23b ... Wheels, 23c ... Lever support, 23d ... Shaft members, 24a, 24b, 24c, 24d ... Shelf,
25 …… Handle for movement,
26 …… Power supply unit, 26a …… Battery, 26b …… Transformer, 27 …… Main frame,
31 …… Lever,
32 …… Wire,
35a, 35b, 35c, 35d, 35e .....
36 …… Arm lock member,
41 …… Wheel stop lever, 41a …… Brake rubber, 41b …… Lever member, 42 …… Lever pressing spring, 43 …… Shaft part,
51 …… Main power switch, 52 …… Control base for motor drive, 52a …… Electric cable, 53 …… Drive motor, 53a …… Pulley, 54a, 54b …… Motor limiter,

Claims (4)

A housing having an area in which things can be stored;
An arm portion extending to the outside of the housing;
A lock mechanism for locking or releasing the arm portion;
A gripper for gripping when moving the housing;
An operation unit capable of fixing and releasing the lock mechanism in accordance with a gripping operation to the gripping unit;
An interlocking unit that performs a fixing operation and a releasing operation of the lock mechanism in accordance with the operation of the operation unit;
The system trolley characterized by comprising. The arm portion has a joint portion that can be opened and closed,
The operation part is capable of closing the joint part,
The system trolley according to claim 1, wherein the interlocking unit performs a closing operation of the joint unit in conjunction with an operation of the operation unit. A caster provided in the housing;
A caster lock mechanism for locking or releasing the caster;
Further comprising
The operation unit is capable of locking and releasing the caster,
2. The system trolley according to claim 1, wherein the interlocking unit locks or releases the caster in conjunction with a caster lock operation or a release operation of the operation unit. A power switch for switching an on / off state of power supplied to the housing;
A motor that is provided at the joint and performs an operation of closing the arm;
A battery for supplying power to the motor;
A power supply unit that supplies power from the battery to the motor in conjunction with an off operation of the power switch;
The system trolley according to claim 2, further comprising:

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