Support device for display terminal of work machine

Abstract

To provide a support device of a display terminal of a work machine that can realize both stably holding and easily detaching of the display terminal attachable / detachable to / from the work machine.SOLUTION: A support device (30) of a display terminal (20) of a work machine comprises: a bracket (36) mounted to a driving cab (8) of the work machine; and a holding member (34) mounted to a back face (20b) of the display terminal (20). The holding member (34) has a cylindrical part (42) formed attachable / detachable to / from the bracket (32). The bracket (32) has an insertion part (38) extended capable of inserting the cylindrical part (42) of the holding member (34) from an upper side to a lower side. The insertion part (38) of the bracket (32) abuts on an inner peripheral surface (42a) of the cylindrical part (42) and locks the holding member (34), in the state that it is inserted to the cylindrical part (42) of the holding member (34), and is formed in such a shape that the lower the cylindrical part (42) is located, the larger the force to lock the holding member (34) becomes.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a support device for a display terminal of a work machine.

Background Art

[0002] In recent years, for the purpose of improving the productivity at construction sites, efforts have been made to promote the utilization of ICT (Information and Communication Technology) construction information in the process from surveying, design, construction to management. For example, in Patent Document 1, based on information from an acceleration sensor and a GPS receiver provided in a compaction machine, the location compacted by the compaction machine and the degree of compaction are displayed on a display device in real time, thereby performing construction management.

[0003] Also, in Patent Document 2, based on information from a GNSS (Global Navigation Satellite System) antenna provided in a compaction machine, the travel history of the compaction machine is mapped, and the compaction locations and the number of compaction times of the compaction machine are recorded and managed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] In construction machinery such as compaction machines, display terminals, such as tablet devices, for displaying and setting ICT construction information may be installed in the operator's cabin via a support device. When not in use in the operator's cabin, the display terminal is removed and stored in the site office. In addition, the accuracy of the location information of the construction machinery is periodically checked while the display terminal is removed from the operator's cabin.

[0006] Since the display terminal is frequently taken out of the driver's cab, the support device for the display terminal needs to have a structure that allows the display terminal to be easily attached and detached. However, when a display terminal is supported by an easily detachable support device, it is susceptible to vibrations and shocks when the work machine travels on rough roads and performs work, which can cause looseness in the support and may even cause the display terminal to detach from the support device and fall.

[0007] This invention has been made in view of the above problems, and aims to provide a support device for a display terminal of a work machine that can achieve both stable holding and ease of attachment and detachment of a display terminal that can be attached to the work machine. [Means for solving the problem]

[0008] To achieve the above objective, the support device for the display terminal of the work machine of the present invention is installed in the operator's cabin of the work machine and comprises a bracket attached to the operator's cabin and a holding member attached to the back of the display terminal on the side opposite to the display screen of the display terminal. The holding member has a cylindrical portion that is detachably formed on the bracket, and the bracket has an insertion portion that extends from above downward so that the cylindrical portion of the holding member can be inserted through it. When the insertion portion of the bracket is inserted into the cylindrical portion of the holding member, it contacts the inner circumferential surface of the cylindrical portion to lock the holding member in place, and the force locking the holding member increases as the cylindrical portion is positioned lower. It has an inclined outer edge, and the inclined outer edge gradually reduces the width of the insertion portion from bottom to top in a direction perpendicular to the display screen of the display terminal. It is formed into a shape. [Effects of the Invention]

[0009] The support device for the display terminal of a work machine according to the present invention makes it possible to achieve both stable holding and ease of attachment and detachment of a display terminal that can be attached to and detached from the work machine. [Brief explanation of the drawing]

[0010] [Figure 1] This is a side view of the work machine. [Figure 2] This is a view of the driver's cab from the rear. [Figure 3] This is a perspective view of a display terminal supported by a support device, as seen from its display screen. [Figure 4] This is a perspective view of a display terminal supported by a support device, seen from its rear. [Figure 5] This is a perspective view of the tablet holder and bracket. [Figure 6] This is a perspective view of the tablet holder and bracket as seen from the back of the insertion section. [Figure 7] This is a side view of the tablet holder and bracket. [Figure 8] This is an exploded perspective view of the support device. [Figure 9] This is a side view of a display terminal supported by a support device. [Figure 10] Figure 9 is a side view when the display terminal is moved upwards. [Figure 11] Figure 10 is a side view showing the display terminal moved further upwards. [Modes for carrying out the invention]

[0011] The following describes a support device for the display terminal of a work machine according to one embodiment of the present invention with reference to the drawings. Figure 1 shows a side view of the work machine. The work machine is an articulated type compaction machine (earthwork vibratory roller) equipped with a machine body 1, a front frame 2, a rear frame 4, a drive unit 6, a driver's cab 8, a compaction roller 10, and drive wheels 12. The machine body 1 can move forward and backward by driving the drive wheels 12 and compact the ground using the compaction roller 10.

[0012] The front frame 2 is a pair of left and right skeletal members disposed at the front of the machine body 1. The front frame 2 is provided with a rolling roller 10 formed in a metal cylindrical shape. Further, the front frame 2 is rotatably attached to the rear frame 4 via a rotation support body 14. A steering cylinder 16 for operating an articulation mechanism is attached to the rotation support body 14.

[0013] The drive device 6 is provided with, for example, an engine or an HST (Hydraulic Static Transmission) and is capable of driving the drive wheels 12. Further, by using the driving force of the engine, it is possible to rotate the front frame 2 about the rotation support body 14. The rear frame 4 is a skeletal member disposed at the rear of the machine body 1. The drive device 6 and the cab 8 are disposed on the upper part of the rear frame 4. Further, drive wheels 12 equipped with rubber tires are disposed on the rear frame 4 so as to sandwich the rear frame 4 in the left - right direction (vehicle width direction) of the machine body 1.

[0014] The cab 8 is disposed on the upper front side of the rear frame 4 and an operator boards it. The machine body 1 is further provided with a GNSS unit 18, a wireless communication device (not shown), etc. The GNSS unit 18 can acquire position information by a GNSS receiver 18b from the radio waves received by a GNSS antenna 18a. The wireless communication device can communicate with wireless devices such as a portable display terminal 20 (hereinafter also simply referred to as the terminal 20) described later.

[0015] FIG. 2 is a view of the interior of the cab 8 as seen from the rear. The cab 8 is equipped with a driver's seat 22, a monitor 24, a steering wheel 26, etc. An operator can board the cab 8, sit on the driver's seat 22, check the monitor 24, operate the steering wheel 26, etc., to drive the aircraft 1. Also, the terminal 20 is attached to the support frame 28 of the cab 8, which is erected on the upper side of the driver's seat 22, via a support device 30 at a position where it is easily visible to the operator in the cab 8. The support frame 28 is, for example, a pillar located on the front right side as seen from the driver's seat 22 among the pillars forming the skeleton of the cabin partitioning the cab 8.

[0016] FIG. 3 shows a perspective view of the terminal 20 supported by the support device 30 as seen from its display screen 20a. The terminal 20 is a tablet terminal on which ICT construction information is displayed on the display screen 20a, and the ICT construction information can be set by touch panel operation on the display screen 20a. The terminal 20 is taken out of the cab 8 when not in use in the cab 8 and stored in the on-site office. Also, operations such as checking the accuracy of the position information of the work machine are regularly performed with the terminal 20 taken out of the cab 8.

[0017] FIG. 4 shows a perspective view of the terminal 20 supported by the support device 30 as seen from its back surface 20b (the surface opposite to the display screen 20a). The support device 30 includes a tablet holder (bracket) 32, a hand holder (holding member) 34, and a support bracket (bracket) 36. The tablet holder 32 supports the terminal 20 and is attached to the support frame 28 of the cab 8 via the support bracket 36. The hand holder 34 is attached to the back surface 20b of the terminal 20 and is detachably fixed to the tablet holder 32 by being inserted through the tablet holder 32 from above.

[0018] Furthermore, the operator grasps the terminal 20, which has been lifted upward and removed from the tablet holder 32, in the hand holder 34. Specifically, the tablet holder 32 has an insertion portion 38 extending in the vertical direction Y (a direction inclined with respect to the horizontal direction at an inclination angle α, which will be described later). The hand holder 34 has a fixing portion 40 that is fixed to the back surface 20b of the terminal 20, and a cylindrical portion 42 that the operator can grasp.

[0019] The cylindrical portion 42 is formed in a cylindrical shape that is detachable from the insertion portion 38 of the tablet holder 32. The insertion portion 38 extends downward from the top so that the cylindrical portion 42 can be inserted through it. Furthermore, when the insertion portion 38 is inserted through the cylindrical portion 42, it abuts against the inner circumferential surface 42a of the cylindrical portion 42 to lock the hand holder 34, and the shape is formed such that the force (locking force) that locks the hand holder 34 becomes larger as the cylindrical portion 42 is positioned lower.

[0020] The fixing portion 40 is formed, for example, by intersecting two flexible, tough fiber tapes 40a in a roughly X-shape and joining them together. The four outer ends of each fiber tape 40a are screwed to the back surface 20b with screws 44, thereby fixing the fixing portion 40 to the back surface 20b of the terminal 20. The cylindrical portion 42 is formed, for example, by processing a plastic material into a cylindrical shape. The intersecting portions of each fiber tape 40a are joined to, for example, the inner circumferential surface 42a of the cylindrical portion 42, thereby forming a hand holder 34 in which the fixing portion 40 and the cylindrical portion 42 are integrated.

[0021] The shape, material, and fastening means of the fixing portion 40 and the cylindrical portion 42 are not limited to the above-described configuration. However, by forming the fixing portion 40 from a flexible material such as each fiber tape 40a, vibrations and shocks transmitted from the machine body 1 to the terminal 20 can be absorbed by the fixing portion 40.

[0022] Figure 5 shows a perspective view of the tablet holder 32 and the support bracket 36. The insertion portion 38 of the tablet holder 32 is, for example, plate-shaped and has a facing surface 38a that faces the back surface 20b of the terminal 20 when the insertion portion 38 is locked onto the cylindrical portion 42 of the hand holder 34. In addition, a stopper portion 46 is provided on the upper part of the insertion portion 38 of the tablet holder 32, which is inclined in a direction that moves away from the back surface 20b of the terminal 20 when the insertion portion 38 is locked onto the cylindrical portion 42 of the hand holder 34. The cylindrical portion 42 of the hand holder 34 can be inserted into the insertion portion 38 from the stopper portion 46.

[0023] Furthermore, the tablet holder 32 has one or more, for example, two, receiving portions 48 that support the terminal 20 when the lower end of the terminal 20 is fitted into the insertion portion 38 that is locked into the cylindrical portion 42 of the hand holder 34. Each receiving portion 48 has an inclined surface portion 50 that is inclined in a direction away from the display screen 20a of the terminal 20 when the lower end of the terminal 20 is fitted into it. An elastic member 52, for example, rubber, is attached to each inclined surface portion 50 of each receiving portion 48 of the tablet holder 32.

[0024] Figure 6 shows a perspective view of the tablet holder 32 and support bracket 36 as seen from the back surface 38b of the insertion portion 38 (the surface opposite to the opposing surface 38a). The insertion portion 38 of the tablet holder 32 has a plate-shaped rib 54 that protrudes toward the inner circumferential surface 42a of the cylindrical portion 42 of the hand holder 34 when the cylindrical portion 42 of the hand holder 34 is inserted through it. The rib 54 extends along the vertical direction Y of the back surface 38b of the insertion portion 38 and constitutes part of the stopper portion 46.

[0025] Furthermore, the rib 54 is erected approximately in the center of the width direction X of the back surface 38b (a direction perpendicular to the vertical direction Y, and the longitudinal direction of the display screen 20a of the terminal 20 when the cylindrical portion 42 of the hand holder 34 is inserted into the insertion portion 38 of the tablet holder 32). The rib 54 also extends from the back surface 38b of the insertion portion 38 toward the opposite side from the display screen 20a of the terminal 20.

[0026] Figure 7 shows a side view of the tablet holder 32 and the support bracket 36. The opposing surface 38a of the insertion portion 38 is inclined at an angle α of less than 90 degrees with respect to the horizontal direction Z. The angle α is, for example, about 85 degrees. The insertion portion 38 also has a contact portion 56 and an inclined outer edge 58, which will be described in detail later. In this embodiment, the contact portion 56 and the inclined outer edge 58 are formed on the end edge 54a in the direction in which the rib 54 protrudes.

[0027] Figure 8 shows an exploded perspective view of the support device 30. The support bracket 36 is formed by bending a plate into a roughly L-shape and includes a fixing portion 60 and a mounting portion 62. The fixing portion 60 has two bolt insertion holes 66 for inserting bolts 64 (for example, hexagonal bolts). The support frame 28 has a mounting surface 68 into which the fixing portion 60 of the support bracket 36 abuts and is positioned. The mounting surface 68 has two bolt holes 70, and the support bracket 36 is fixed to the support frame 28 by fastening bolts 64 inserted through each bolt insertion hole 66 to each bolt hole 70.

[0028] On the other hand, two bolt insertion holes 72 are formed in the mounting portion 62. The lower part of the rib 54 is formed with a higher protruding height compared to the upper part of the rib 54, and the mounting portion 62 is positioned in contact with this portion, and two bolt insertion holes 74 are formed therein. Bolts 78 (for example, socket head cap screws) are inserted through each bolt insertion hole 72 and each bolt insertion hole 74 via washers 76.

[0029] A nut 80 (for example, a hexagonal nut) is screwed onto the tip of each bolt 78, and the tablet holder 32 is fixed to the support bracket 36 by fastening each bolt 78 and each nut 80. The number of bolts 64 and 78 used to fix the support frame 28, the support bracket 36, and the tablet holder 32, or the fixing means itself, are not limited to the above-described configuration. In addition, the two bolt insertion holes 72 may be formed in an elliptical shape, for example. This allows the tilt of the tablet holder 32 relative to the support bracket 36 to be adjusted, so that the display screen 20a of the terminal 20 can be adjusted to an angle that is easy for the operator to view.

[0030] The following describes the support state of the terminal 20 in the support device 30 and how to remove the terminal 20 from the tablet holder 32, with reference to Figures 9 to 11. In Figures 9 to 11, the cylindrical portion 42 is shown in a longitudinal cross-section. Figure 9 shows a side view of the terminal 20 supported by the support device 30. When the cylindrical portion 42 is inserted through the insertion portion 38, the end edge 54a of the rib 54 of the insertion portion 38 comes into contact with the inner circumferential surface 42a of the cylindrical portion 42, forming a contact portion 56 on the end edge 54a.

[0031] The contact portion 56 is formed so that the terminal 20 is supported by the tablet holder 32 without wobbling and is easy to attach and detach. In addition, an inclined outer edge 58 is formed on the insertion portion 38 at the position of the end edge 54a of the rib 54, and the width of the insertion portion 38 in the direction perpendicular to the display screen 20a of the terminal 20 is gradually reduced from the bottom to the top. As a result, the thickness t in the thickness direction of the insertion portion 38, including the protruding height of the rib 54 (the length extending from the back surface 38b of the insertion portion 38 toward the opposite side of the display screen 20a of the terminal 20), is also gradually reduced from the contact portion 56 to the upper end of the stopper portion 46. The inclined outer edge 58 uses the weight of the terminal 20 to gently bite into the inner circumferential surface 42a of the cylindrical portion 42, acting as a locking force through a wedge effect.

[0032] Furthermore, the opposing surface 38a of the insertion portion 38 is formed at an inclination angle α of less than 90 degrees with respect to the horizontal direction Z when the cylindrical portion 42 is inserted through the insertion portion 38. As a result, the terminal 20 is supported by the insertion portion 38, including the rib 54, and consequently the tablet holder 32, in a slightly tilted position that causes it to lean diagonally downward. In addition, the lower end of the stopper portion 46 is positioned close to the upper end of the cylindrical portion 42 when the cylindrical portion 42 is inserted through the insertion portion 38.

[0033] More specifically, since the rib 54 constitutes part of the stopper portion 46, the lower end of the stopper portion 46 is positioned at the inclination starting point 54b where the inclination of the rib 54 towards the stopper portion 46 begins. By bringing the upper end of the cylindrical portion 42 close to the inclination starting point 54b, the upward movement of the terminal 20 is effectively restricted. Furthermore, the lower end of the terminal 20 is fitted into each receiving portion 48.

[0034] Figure 10 shows a side view of the terminal 20 when it is moved upward in Figure 9. When removing the terminal 20 from the tablet holder 32, first, the contact at the contact portion 56 is released by lifting the terminal 20 upward against the locking force due to the wedge effect described above. Then, with the contact at the contact portion 56 still released (the terminal 20 still lifted upward), the terminal 20 is lifted further upward along the stopper portion 46, tilting it slightly toward the opposite side of the display screen 20a. At this time, since each receiving portion 48 has an inclined surface portion 50, the inclination of the lower end of the terminal 20 is allowed at each inclined surface portion 50, and the terminal 20 can move upward while tilting slightly along the stopper portion 36.

[0035] Figure 11 shows a side view of the terminal 20 when it is moved further upward in Figure 10. By tilting the terminal 20 further along the stopper portion 46 toward the opposite side of the display screen 20a and lifting it upward along the stopper portion 46, the terminal 20 can be easily removed from the insertion portion 38 of the tablet holder 32 along the inclined outer edge 58, as shown by the dashed line in Figure 11.

[0036] Thus, the operator can easily remove the terminal 20 from the tablet holder 32 by performing the aforementioned operation with the intention of removing the terminal 20 from the tablet holder 32, even if the stopper portion 46 is present. On the other hand, even if the terminal 20 is subjected to simple vertical vibrations or shocks due to the work machine traveling on rough roads or performing work, the movement of the terminal is restricted by the stopper portion 46, thus preventing the terminal 20 from coming out of the insertion portion 38 of the tablet holder 32 and falling.

[0037] As described above, the support device 30 for the terminal 20 of the work machine in this embodiment comprises the aforementioned tablet holder 32, hand holder 34, and support bracket 36. The hand holder 34 has the function of detachably fixing and supporting the terminal 20 to the tablet holder 32 by inserting it into the tablet holder 32 from above, and the function of allowing the operator to grasp the terminal 20 after it has been lifted upward and removed from the tablet holder 32.

[0038] Furthermore, the insertion portion 38 of the tablet holder 32 is shaped such that, when the cylindrical portion 42 of the hand holder 34 is inserted, it abuts against the inner circumferential surface 42a of the cylindrical portion 42, locking the hand holder 34 in place, and the lower the position of the cylindrical portion 42, the greater the force with which it locks the hand holder 34. This creates the aforementioned contact portion 56 that locks the cylindrical portion 42 of the hand holder 34 to the insertion portion 38 of the tablet holder 32 and allows for easy release of the lock. At the contact portion 56, the terminal 20 is supported by the tablet holder 32 to the extent that it does not wobble, and is easily attached and detached. Thus, both improved support rigidity and ease of attachment and detachment of the terminal 20 can be achieved.

[0039] Furthermore, a stopper portion 46 is provided at the upper part of the insertion portion 38 of the tablet holder 32, which is inclined to move away from the back surface 20b of the terminal 20 when the insertion portion 38 is locked to the cylindrical portion 42 of the hand holder 34. By forming the stopper portion 46, it is possible to prevent the terminal 20 from moving upward due to strong vibrations or impacts, detaching from the insertion portion 38, and falling. Thus, the terminal 20 is held more effectively and stably.

[0040] Furthermore, the insertion portion 38 of the tablet holder 32 has an inclined outer edge 58 in which the width of the insertion portion 38 in the direction perpendicular to the display screen 20a of the terminal 20 gradually decreases from the bottom to the top. This allows a wedge-like locking force to be applied, using the weight of the terminal 20 to gently bite into the inner circumferential surface 42a of the cylindrical portion 42.

[0041] This locking force allows the insertion portion 38, including the rib 54, to be securely fitted and locked into the inner circumferential surface 42a of the cylindrical portion 42. Furthermore, by forming an inclined outer edge 58 on the insertion portion 38, the terminal 20 can be easily attached to and detached from the insertion portion 38. Thus, stable retention and ease of attachment and detachment of the terminal 20 can be achieved even more effectively.

[0042] Furthermore, the insertion portion 38 of the tablet holder 32 has a rib 54 that protrudes toward the inner circumferential surface 42a of the cylindrical portion 42 when the insertion portion 38 is locked to the cylindrical portion 42 of the hand holder 34. The end edge 54a of the rib 54 in the direction of protrusion is an inclined outer edge 58 that abuts against the inner circumferential surface 42a of the cylindrical portion 42. As a result, by simply adjusting the shape of the protruding rib 54, the insertion portion 38 of the tablet holder 32 can be made into an optimal shape that generates the aforementioned abutment state and a locking force due to the wedge effect.

[0043] Furthermore, by forming an inclined outer edge 58 on the rib 54 of the insertion portion 38 of the tablet holder 32, the terminal 20 can be easily removed from the insertion portion 38 along the inclined outer edge 58. Therefore, the terminal 20 can be stably held by the locking force generated by the wedge effect associated with the formation of the inclined outer edge 58, while further improving the ease of attaching and detaching the terminal 20.

[0044] Furthermore, the opposing surface 38a of the insertion portion 38 of the tablet holder 32 is formed at an inclination angle α of less than 90 degrees with respect to the horizontal direction Z. As a result, the terminal 20 is supported by the insertion portion 38, including the rib 54, and by extension the tablet holder 32, in a slightly tilted position, leaning diagonally downward. By supporting the terminal 20 in such an inclined position, the load when the terminal 20 leans is suitably applied to the contact portion 56, and the locking force due to the wedge effect of the inclined outer edge 58 can be generated even more effectively. Therefore, the terminal 20 is held more effectively and stably.

[0045] Furthermore, the tablet holder 32 has a receiving portion 48 that supports the terminal 20 when the lower end of the terminal 20 is fitted into the receiving portion 48 while the insertion portion 38 is locked into the cylindrical portion 42 of the hand holder 34. The receiving portion 48 also has an inclined surface portion 50 that is tilted in a direction away from the display screen 20a of the terminal 20 when the lower end of the terminal 20 is fitted into it. As a result, rattling of the terminal 20 can be suppressed not only at the contact portion 56 but also at the receiving portion 48, so that the terminal 20 is held more effectively and stably.

[0046] Furthermore, the inclined surface portion 50 allows the lower end of the terminal 20 to be easily released from the receiving portion 48, thereby further improving the ease of attaching and detaching the terminal 20. In addition, an elastic member 52 is attached to the inclined surface portion 50 of the receiving portion 48 of the tablet holder 32. As a result, vibrations and shocks transmitted from the device 1 to the terminal 20 can be absorbed by the elastic member 52, thereby more effectively and stably holding the terminal 20.

[0047] This concludes the description of one embodiment of the present invention. However, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the insertion portion 38 is plate-shaped, and ribs 54 are erected on the insertion portion 38. This is preferable because it makes it possible to reduce the weight of the tablet holder 32 and, consequently, the support device 30.

[0048] However, if the insertion portion 38 has parts similar to the contact portion 56 and the inclined outer edge 58, the shape of the insertion portion 38 is not limited to a plate shape, and the formation of the rib 54 is not essential. Also, if the terminal 20 can be sufficiently held stably by forming the contact portion 56 and the inclined outer edge 58, the receiving portion 48 does not need to be provided. Also, if the terminal 20 can be sufficiently held stably by forming only the contact portion 56, the inclined outer edge 58 does not need to be provided.

[0049] Furthermore, in the above embodiment, the support device 30 includes a tablet holder 32 and a support bracket 36 as separate components, but the tablet holder 32 may be integrally formed with the support bracket 36. Moreover, the present invention is applicable to various types of work machines, not limited to the compaction machine described above, as long as a terminal 20 for displaying and setting ICT construction information is installed in the operator's cab 8 where the operator sits. [Explanation of Symbols]

[0050] 8. Driver's cab 20 Display terminals 20a display screen 20b back 30 Support device 32 Tablet holder (bracket) 34 Hand holder (holding member) 36 Support bracket (bracket) 38 Insertion part 38a Opposing surface 42 Cylindrical part 42a Inner surface 46 Stopper section 48 Receiving part 50 Slope section 52 Elastic members 54 Ribs 54a Edge 58. Sloping outer edge α Tilt angle

Claims

1. A support device for a display terminal installed in the operator's cabin of a work machine, The aforementioned support device is A bracket attached to the driver's cab, A retaining member attached to the back of the display terminal on the side opposite to the display screen of the display terminal, It consists of, The retaining member has a cylindrical portion that is detachably formed on the bracket, The bracket has an insertion portion that extends from above downward so that the cylindrical portion of the retaining member can be inserted through it. The insertion portion of the bracket, when inserted through the cylindrical portion of the retaining member, has an inclined outer edge that abuts against the inner circumferential surface of the cylindrical portion to lock the retaining member, and the force locking the retaining member increases as the cylindrical portion is positioned lower. A support device for a display terminal of a work machine, characterized in that the inclined outer edge is formed in a shape in which the width of the insertion portion in a direction perpendicular to the display screen of the display terminal is gradually reduced from the bottom to the top.

2. The support device for a display terminal of a work machine according to claim 1, wherein a stopper portion is provided on the upper part of the insertion portion of the bracket, which is inclined in a direction away from the back surface of the display terminal when the insertion portion is engaged with the cylindrical portion of the holding member.

3. The insertion portion of the bracket has a rib that protrudes toward the inner circumferential surface of the cylindrical portion when the insertion portion is engaged with the cylindrical portion of the holding member. The support device for the display terminal of a work machine according to claim 1 or 2, characterized in that the end edge of the rib in the direction of projection is the inclined outer edge that abuts against the inner circumferential surface of the cylindrical portion.

4. The bracket has a facing surface that faces the back of the display terminal when the insertion portion is engaged with the cylindrical portion of the holding member. The support device for the display terminal of a work machine according to claim 1, characterized in that the opposing surfaces are formed at an inclination angle of less than 90 degrees with respect to the horizontal direction.

5. The bracket has a receiving portion that supports the display terminal by fitting the lower end of the display terminal into it when the insertion portion is engaged with the cylindrical portion of the holding member. The support device for a display terminal of a work machine according to claim 1, characterized in that the receiving portion has an inclined surface portion that is inclined in a direction away from the display screen when the lower end of the display terminal is fitted into it.

6. The support device for a display terminal of a work machine according to claim 5, characterized in that an elastic member is attached to the inclined surface portion of the receiving portion of the bracket.

Images