JP2024030732A - Support device for display terminal of working machine - Google Patents

Abstract

An object of the present invention is to provide a support device for a display terminal of a working machine, which can realize both stable holding of a display terminal that can be attached to and detached from the working machine and ease of attaching and detaching the display terminal. [Solution] A support device (30) for a display terminal (20) of a working machine is attached to a bracket (36) attached to the operator's cab (8) of the working machine and to the back (20b) of the display terminal (20). The holding member (34) has a cylindrical part (42) formed to be removably attached to the bracket (32), and the bracket (32) extends downward from above. The insertion part (38) of the bracket (32) has an extending insertion part (38) that can be inserted through the cylindrical part (42) of the holding member (34). (42), the holding member (34) is locked by coming into contact with the inner circumferential surface (42a) of the cylindrical part (42), and the lower the cylindrical part (42) is, the more It is formed in a shape that increases the force for locking the holding member (34). [Selection diagram] Figure 4

Description

The present invention relates to a support device for a display terminal of a working machine.

In recent years, efforts have been made to utilize ICT (Information and Communication Technology) construction information in processes ranging from surveying, design, construction, and management with the aim of improving productivity at construction sites. For example, in Patent Document 1, the location compacted by the compaction machine and the degree of compaction are displayed on a display device in real time based on information from an acceleration sensor and a GPS receiver provided in the compaction machine. Construction management is carried out by this.

In addition, in Patent Document 2, the travel history of the rolling machine is mapped based on information from a GNSS (Global Navigation Satellite System) antenna equipped on the rolling machine, and the rolling history of the rolling machine is mapped and The number of times is recorded and managed.

JP2021-67037A Patent No. 6685259

In working machines such as compaction machines, a display terminal such as a tablet terminal for displaying and setting ICT construction information is sometimes installed in an operator's cab in which an operator rides via a support device. When the display terminal is not in use in the cab, it is taken out of the cab and stored at the field office. In addition, work such as checking the accuracy of the position information of the working machine is performed regularly on the display terminal while it is taken out of the operator's cab.

Since the display terminal is frequently taken out of the driver's cab, a support device for the display terminal is required to have a structure that allows the display terminal to be easily attached and detached. However, display terminals supported by easily attachable and detachable support devices are subject to vibrations and shocks when working machines run on rough roads and perform work, and the display terminals tend to wobble in the supported state. There is a risk of it coming off the support device and falling.

The present invention has been made in view of these problems, and provides a support for a display terminal of a working machine that can realize both stable holding of a display terminal that can be attached to and detached from the working machine and ease of attaching and detaching the display terminal. The purpose is to provide equipment.

In order to achieve the above object, the support device for a display terminal of a working machine of the present invention is installed in the operator's cab of a working machine, and includes a bracket that is attached to the operator's cab, and a display terminal that is on the opposite side of the display screen of the display terminal. and a holding member attached to the back surface of the bracket, the holding member having a cylindrical part formed to be removably attached to the bracket, and the bracket being able to be inserted through the cylindrical part of the holding member from above to below. The insertion part of the bracket has an extended insertion part, and the insertion part of the bracket is inserted into the cylindrical part of the holding member and comes into contact with the inner peripheral surface of the cylindrical part to lock the holding member, and the insertion part of the bracket locks the holding member. The lower the holding member is located, the larger the force for locking the holding member becomes.

According to the support device for a display terminal for a working machine of the present invention, it is possible to both stably hold a display terminal that is detachable from the working machine and to make it easy to attach and detach the display terminal.

FIG. 3 is a side view of the working machine. FIG. 3 is a view of the inside of the driver's cab viewed from the rear. FIG. 2 is a perspective view of a display terminal supported by a support device, viewed from its display screen. FIG. 2 is a perspective view of a display terminal supported by a support device, viewed from the back. It is a perspective view of a tablet holder and a bracket. FIG. 3 is a perspective view of the tablet holder and the bracket seen from the back side of the insertion part. It is a side view of a tablet holder and a bracket. FIG. 3 is an exploded perspective view of the support device. FIG. 3 is a side view of a display terminal supported by a support device. 10 is a side view when the display terminal is moved upward in FIG. 9. FIG. 11 is a side view when the display terminal is moved further upward in FIG. 10. FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A support device for a display terminal of a working machine according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a side view of a working machine. The working machine is an articulated compaction machine (earthwork vibrating roller) that includes a machine body 1, a front frame 2, a rear frame 4, a drive device 6, a driver's cab 8, a compaction roller 10, and a drive wheel 12. . The body 1 is capable of compacting the ground using the compaction rollers 10 while moving forward and backward by driving the drive wheels 12.

The front frame 2 is a pair of left and right skeleton members disposed at the front of the aircraft body 1. The front frame 2 is equipped with a rolling pressure roller 10 made of metal and formed into a cylindrical shape. Further, the front frame 2 is rotatably attached to the rear frame 4 via a rotary support 14. A steering cylinder 16 is attached to the rotation support 14 for operating an articulating mechanism.

The drive device 6 is equipped 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 14 as an axis. The rear frame 4 is a skeleton member disposed at the rear of the aircraft body 1. A drive device 6 and a driver's cab 8 are disposed in the upper part of the rear frame 4. Furthermore, 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 body 1.

The operator's cab 8 is disposed at the upper front side of the rear frame 4, and an operator rides therein. The aircraft 1 is further equipped with a GNSS unit 18, a wireless communication device (not shown), and the like. The GNSS unit 18 is capable of acquiring position information using the GNSS receiver 18b from radio waves received by the GNSS antenna 18a. The wireless communication device is capable of communicating with a wireless device such as a portable display terminal 20 (hereinafter also simply referred to as terminal 20), which will be described later.

FIG. 2 is a diagram of the inside of the driver's cab 8 viewed from the rear. The driver's cab 8 is equipped with a driver's seat 22, a monitor 24, a steering wheel 26, etc., and an operator boards the driver's cab 8, sits in the driver's seat 22, checks the monitor 24, operates the steering wheel 26, etc. This allows the aircraft 1 to travel. Further, the terminal 20 is attached via a support device 30 to a support frame 28 of the driver's cab 8, which is installed in a position where the operator can easily see the driver's cab 8, for example, on the upper side of the driver's seat 22. There is. The support frame 28 is, for example, a pillar located on the front right side when viewed from the driver's seat 22, among the pillars forming the frame of a cabin that partitions the driver's cab 8.

FIG. 3 shows a perspective view of the terminal 20 supported by the support device 30, viewed from the display screen 20a. The terminal 20 is a tablet terminal on which ICT construction information is displayed on a display screen 20a, and the ICT construction information can be set by operating a touch panel on the display screen 20a. When the terminal 20 is not used in the operator's cabin 8, it is taken out of the operator's cabin 8 and stored at the field office. Further, the terminal 20 is periodically used to confirm the accuracy of the position information of the working machine while being taken out of the operator's cab 8.

FIG. 4 shows a perspective view of the terminal 20 supported by the support device 30, viewed 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 driver's cab 8 via a support bracket 36. The hand holder 34 is attached to the back surface 20b of the terminal 20, and is removably fixed to the tablet holder 32 by being inserted into the tablet holder 32 from above.

Further, the operator holds 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 part 40 fixed to the back surface 20b of the terminal 20 and a cylindrical part 42 that can be held by an operator.

The cylindrical portion 42 is formed in a cylindrical shape that can be attached to and detached from the insertion portion 38 of the tablet holder 32. The insertion portion 38 extends downward from above so as to be inserted through the cylindrical portion 42 . In addition, the insertion portion 38 locks the hand holder 34 by coming into contact with the inner circumferential surface 42a of the cylindrical portion 42 when inserted into the cylindrical portion 42, and the lower the cylindrical portion 42 is located, the more It is formed in a shape that increases the force for locking the hand holder 34 (locking force).

The fixing part 40 is formed, for example, by crossing two flexible and strong fiber tapes 40a in a substantially 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 intersection portion of each fiber tape 40a is joined to, for example, the inner circumferential surface 42a of the cylindrical portion 42, thereby forming the hand holder 34 in which the fixing portion 40 and the cylindrical portion 42 are integrated.

Note that the shapes, materials, and fixing means of the fixing part 40 and the cylindrical part 42 are not limited to the above-mentioned forms. However, by forming the fixed part 40 with a flexible material such as each fiber tape 40a, the fixed part 40 can absorb vibrations and shocks transmitted from the body 1 to the terminal 20.

FIG. 5 shows a perspective view of the tablet holder 32 and support bracket 36. The insertion portion 38 of the tablet holder 32 has a plate shape, for example, and has an opposing surface 38a that faces the back surface 20b of the terminal 20 in a state where the insertion portion 38 locks the cylindrical portion 42 of the hand holder 34. Further, a stopper portion 46 is provided at the upper part of the insertion portion 38 of the tablet holder 32, and is inclined in a direction away from the back surface 20b of the terminal 20 when the insertion portion 38 locks the cylindrical portion 42 of the hand holder 34. is provided. The cylindrical portion 42 of the hand holder 34 can be inserted into the insertion portion 38 from the stopper portion 46 .

In addition, the tablet holder 32 has one or more, for example, two It has two receiving parts 48. 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 portion of the terminal 20 is fitted therein. An elastic member 52 made of, for example, rubber is attached to each inclined surface portion 50 of each receiving portion 48 of the tablet holder 32.

FIG. 6 shows a perspective view of the tablet holder 32 and the support bracket 36 viewed from the back surface 38b (the surface opposite to the facing surface 38a) of the insertion portion 38. The insertion portion 38 of the tablet holder 32 has a plate-shaped rib 54 that projects toward the inner circumferential surface 42a of the cylindrical portion 42 into which the cylindrical portion 42 of the hand holder 34 is inserted. The rib 54 extends in the vertical direction Y of the back surface 38b of the insertion portion 38 and constitutes a part of the stopper portion 46.

Further, the rib 54 is a direction perpendicular to the width direction 20a in the longitudinal direction). Further, the rib 54 extends from the back surface 38b of the insertion portion 38 toward the opposite side to the display screen 20a of the terminal 20.

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

FIG. 8 shows an exploded perspective view of the support device 30. The support bracket 36 is formed by bending a plate material into a substantially L-shape, and includes a fixing part 60 and a mounting part 62. Two bolt insertion holes 66 for inserting bolts 64 (for example, hexagonal bolts) are formed in the fixing part 60. The support frame 28 is formed with a mounting surface 68 against which the fixing portion 60 of the support bracket 36 is positioned. Two bolt holes 70 are formed in the mounting surface 68 , and the support bracket 36 is fixed to the support frame 28 by fastening the bolts 64 inserted through each bolt insertion hole 66 to each bolt hole 70 .

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 than the upper part of the rib 54, and the mounting part 62 is positioned in contact with this part, and two bolt insertion holes 74 are formed in this part. . A bolt 78 (for example, a hexagon socket bolt) is inserted into each bolt insertion hole 72 and each bolt insertion hole 74 via a washer 76, respectively.

A nut 80 (for example, a hexagonal nut) is screwed onto the tip of each bolt 78, and by tightening each bolt 78 and each nut 80, the tablet holder 32 is fixed to the support bracket 36. Note that 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 embodiment. Further, the two bolt insertion holes 72 may be formed, for example, in an elliptical shape. Thereby, the inclination of the tablet holder 32 with respect to the support bracket 36 can 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 visually recognize.

Hereinafter, with reference to FIGS. 9 to 11, the state in which the terminal 20 is supported by the support device 30 and how to remove the terminal 20 from the tablet holder 32 will be described. Note that in FIGS. 9 to 11, the cylindrical portion 42 is shown in a longitudinal section. FIG. 9 shows a side view of the terminal 20 supported by the support device 30. When the cylindrical part 42 is inserted into the insertion part 38, the end edge 54a of the rib 54 of the insertion part 38 comes into contact with the inner peripheral surface 42a of the cylindrical part 42, so that the end edge 54a has a contact part 56. is formed.

By forming the contact portion 56, the terminal 20 is supported with respect to the tablet holder 32 to the extent that it does not wobble and can be easily attached to and detached from the tablet holder 32. Further, the insertion portion 38 is formed with an inclined outer edge 58 at the position of the edge 54a of the rib 54, in which 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. be done. Thereby, 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 to the display screen 20a of the terminal 20) is gradually reduced from the contact portion 56 to the upper end of the stopper portion 46. The slanted outer edge 58 uses the weight of the terminal 20 to exert a locking force on the inner circumferential surface 42a of the cylindrical portion 42 by gently biting the abutting portion 56 into it, resulting in a so-called wedge effect.

Further, the facing 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 into the insertion portion 38. 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 such that the terminal 20 falls diagonally downward. Further, 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 into the insertion portion 38 .

Specifically, since the rib 54 constitutes a part of the stopper part 46, the lower end of the stopper part 46 is positioned at the inclination starting point 54b where the rib 54 starts to incline toward the stopper part 46. By bringing the upper end of the cylindrical portion 42 close to the inclination starting point 54b, upward movement of the terminal 20 is suitably regulated. Further, the lower end portion of the terminal 20 is fitted into each receiving portion 48 .

FIG. 10 shows a side view of the terminal 20 when it is moved upward in FIG. 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, while the contact at the contact portion 56 remains released (the terminal 20 remains lifted upward), the terminal 20 is slightly tilted toward the opposite side of the display screen 20a along the stopper portion 46. While doing so, lift it further upwards. At this time, since the sloped surface part 50 is formed in each receiving part 48, the slope of the lower end part of the terminal 20 is allowed in each sloped surface part 50, and the terminal 20 is tilted slightly along the stopper part 36 while moving upward. It is possible to move to.

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

In this manner, the operator can easily remove the terminal 20 from the tablet holder 32 even if the stopper portion 46 is present by performing the above-described operation with the intention of removing the terminal 20 from the tablet holder 32. On the other hand, even if the terminal 20 is subjected to mere vertical vibration or shock due to the work machine traveling on a rough road or performing work, the movement of the terminal is restricted by the stopper portion 46, so that The terminal 20 is prevented from coming off from the insertion portion 38 of the tablet holder 32 and falling.

As described above, the support device 30 for the terminal 20 of the working machine of this embodiment includes the tablet holder 32, the hand holder 34, and the support bracket 36 described above. 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 removed by lifting it upward from the tablet holder 32. It has functions for

When the cylindrical portion 42 of the hand holder 34 is inserted, the insertion portion 38 of the tablet holder 32 abuts against the inner circumferential surface 42a of the cylindrical portion 42 to lock the hand holder 34, and the cylindrical portion 42 is formed in such a shape that the lower it is located, the greater the force with which it locks the hand holder 34. As a result, the above-mentioned abutting portion 56 is formed, which locks the cylindrical portion 42 of the hand holder 34 to the insertion portion 38 of the tablet holder 32 and can easily release the locking. Since the terminal 20 is supported with respect to the tablet holder 32 to the extent that it does not wobble and can be easily attached and detached, it is possible to achieve both improved support rigidity and ease of attachment and detachment of the terminal 20.

Further, a stopper portion 46 is provided at the upper part of the insertion portion 38 of the tablet holder 32, and is inclined in a direction away from the back surface 20b of the terminal 20 when the insertion portion 38 locks the cylindrical portion 42 of the hand holder 34. is provided. By forming the stopper portion 46, it is possible to prevent the terminal 20 from moving upward due to severe vibrations or shocks, coming off the insertion portion 38, and falling. Therefore, the terminal 20 can be held more effectively and stably.

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 orthogonal to the display screen 20a of the terminal 20 is gradually reduced from the bottom to the top. Thereby, by utilizing the weight of the terminal 20, it is possible to apply a locking force by a wedge effect to the inner peripheral surface 42a of the cylindrical portion 42, which causes the abutting portion 56 to bite gently.

Due to the action of this locking force, the insertion portion 38 including the rib 54 can be reliably fitted and locked into the inner peripheral surface 42a of the cylindrical portion 42. Further, by forming the inclined outer edge 58 on the insertion portion 38, the terminal 20 can be easily attached to and removed from the insertion portion 38. Therefore, stable holding of the terminal 20 and ease of attachment and detachment can be realized more effectively.

In addition, the insertion portion 38 of the tablet holder 32 has ribs 54 that protrude toward the inner circumferential surface 42a of the cylindrical portion 42 when the insertion portion 38 locks the cylindrical portion 42 of the hand holder 34. has. Furthermore, an end edge 54a of the rib 54 in the protruding direction is an inclined outer edge 58 that abuts the inner circumferential surface 42a of the cylindrical portion 42. As a result, by simply adjusting the protruding shape of the rib 54, the insertion portion 38 of the tablet holder 32 can be made into an optimal shape that generates the above-described contact state and the locking force due to the wedge effect. can.

Further, by forming the 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 ease of attachment and detachment of the terminal 20 can be further improved while stably holding the terminal 20 by generating a locking force due to the wedge effect caused by the formation of the inclined outer edge 58.

Further, the facing 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 such that the terminal 20 falls diagonally downward. By supporting the terminal 20 in such an inclined posture, the load when the terminal 20 falls is suitably applied to the contact portion 56, and the locking force due to the wedge effect of the inclined outer edge 58 is more effectively applied. can be generated. Therefore, the terminal 20 can be held more effectively and stably.

Further, the tablet holder 32 has a receiving part 48 that supports the terminal 20 by fitting the lower end of the terminal 20 in a state where the insertion part 38 locks the cylindrical part 42 of the hand holder 34. Further, the 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 in a state in which the lower end portion of the terminal 20 is fitted. As a result, it is possible to suppress wobbling of the terminal 20 not only in the contact portion 56 but also in the receiving portion 48, so that the terminal 20 can be held more effectively and stably.

Further, by forming the inclined surface portion 50, the lower end portion of the terminal 20 can be easily unfitted into the receiving portion 48, so that the ease of attachment and detachment of the terminal 20 can be further improved. Further, an elastic member 52 is attached to the inclined surface portion 50 of the receiving portion 48 of the tablet holder 32. This allows the elastic member 52 to absorb vibrations and shocks transmitted from the body 1 to the terminal 20, thereby stably holding the terminal 20 more effectively.

This concludes the description of one embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention. For example, in the case of the above embodiment, the insertion portion 38 has a plate shape, and the rib 54 is provided upright on the insertion portion 38 . This is preferable because it is possible to reduce the weight of the tablet holder 32 and, by extension, the support device 30.

However, the shape of the insertion part 38 is not limited to a plate shape, and the formation of the ribs 54 is not essential, as long as the insertion part 38 has a portion similar to the contact part 56 and the inclined outer edge 58. Further, if the formation of the contact portion 56 and the inclined outer edge 58 can sufficiently stably hold the terminal 20, the receiving portion 48 may not be provided. Furthermore, if the terminal 20 can be held stably by forming only the contact portion 56, the inclined outer edge 58 may not be provided.

Further, in the case of the above embodiment, the support device 30 includes the tablet holder 32 and the support bracket 36 as separate members, but the tablet holder 32 may be integrally formed with the support bracket 36. Furthermore, the present invention is applicable not only to the above-mentioned compaction machine but also to various types of work machines as long as the terminal 20 for displaying and setting ICT construction information is installed in the operator's cab 8 where an operator rides. It is possible.

8 Driver's Cab 20 Display Terminal 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 peripheral surface 46 Stopper part 48 Receiving part 50 Inclined surface part 52 Elastic member 54 Rib 54a Edge 58 Inclined outer edge α Inclination angle

Claims (7)

A support device for a display terminal installed in the operator's cab of a working machine,
The support device includes:
a bracket attached to the driver's cab;
a holding member attached to the back surface of the display terminal opposite to the display screen of the display terminal;
Consisting of
The holding member has a cylindrical part that is removably attached to the bracket,
The bracket has an insertion part that extends from above to below so as to be inserted through the cylindrical part of the holding member,
The insertion part of the bracket is inserted into the cylindrical part of the holding member and comes into contact with the inner circumferential surface of the cylindrical part to lock the holding member, so that the cylindrical part moves downward. A support device for a display terminal of a working machine, characterized in that the support device for a display terminal of a working machine is formed in such a shape that the force for locking the holding member becomes larger as the holding member is positioned. A stopper portion is provided at an upper portion of the insertion portion of the bracket, and the stopper portion is inclined in a direction away from the back surface of the display terminal when the insertion portion locks the cylindrical portion of the holding member. 2. The support device for a display terminal of a working machine according to claim 1, wherein: 3. The insertion portion of the bracket has an inclined outer edge 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. A support device for a display terminal of the described working machine. The insertion portion of the bracket has a rib that projects toward the inner circumferential surface of the cylindrical portion in a state where the insertion portion locks the cylindrical portion of the holding member,
4. The support device for a display terminal of a working machine according to claim 3, wherein an end edge of the rib in a protruding direction is the inclined outer edge that comes into contact with the inner circumferential surface of the cylindrical portion. The bracket has a facing surface that faces the back surface of the display terminal in a state in which the insertion part locks the cylindrical part of the holding member,
The support device for a display terminal of a working machine according to claim 1, wherein the opposing surface is formed at an angle of inclination of less than 90 degrees with respect to the horizontal direction. The bracket has a receiving part that supports the display terminal by fitting the lower end part of the display terminal in a state where the insertion part locks the cylindrical part of the holding member,
The display terminal for a working machine according to claim 1, wherein the receiving part has an inclined surface part that is inclined in a direction away from the display screen when the lower end part of the display terminal is fitted. Support device. 7. The support device for a display terminal of a working machine according to claim 6, wherein an elastic member is attached to the inclined surface portion of the receiving portion of the bracket.