JP3396248B2 - Monitor support device for vehicle - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting device for rotatably fixing a color liquid crystal monitor device such as a television, a video and a navigation system in a vehicle interior. 2. Description of the Related Art Recently, a monitor device such as a liquid crystal television is often provided around a dashboard in a vehicle cabin or around a driver's seat. When the monitor device 20 is attached to a dashboard (not shown) or the like in this manner, for example, as shown in FIG. 17, the monitor device 20 is attached to a required portion of the dashboard or a base 30 for accommodating the monitor device 20 in the dashboard. Bolt the support arm 40
Generally, the monitor device 20 is fixed to a bracket 150 provided near the distal end of the support arm 40. The liquid crystal screen of the monitor device 20 has a structure in which it is difficult to read information displayed on the surface depending on the viewing angle, so that the angle of the monitor device 20 can be freely changed and fixed. As an example of a structure for freely changing and fixing the angle of the monitor device 20, as shown in FIGS. 17 and 18, an annular rubber ring is attached to a cylindrical fixed shaft 152 protruding from a bracket body 151 of a bracket 150. In some cases, an annular support ring 170 is attached to the outer periphery of a rubber ring 160. 17 and 18 on the outer periphery of the support ring 170.
As shown in FIG. 5, when the notch 171 is formed and the support ring 170 is inserted and fixed in the mounting hole 22 provided on the exterior of the monitor housing 21 of the monitor device 20, the support ring 170 has the notch 171 so that the monitor device 20 has the notch 171. And rotate together. [0004] Therefore, the monitor device 20 can be rotated and fixed at a free angle with respect to the support arm 40 by the frictional force of the rubber ring 160. That is, when an external force is applied so strongly that the monitor device 20 is rotated, between the inner circumference of the rubber ring 160 and the outer circumference of the fixed shaft 152, and between the outer circumference of the rubber ring 160 and the inner circumference of the support ring 170. Sliding occurs, and the support ring 170 rotates about the fixed shaft 152 of the bracket 150 integrally with the monitor device 20. Thereafter, when the application of external force to the monitor device 20 is stopped, the rubber ring 16
Due to the zero frictional force, the support ring 170 is fixed so as to be stationary at that position, and the monitor device 20 stops at the angle when no external force is applied to maintain a constant angle with respect to the support arm 40. When the monitor device 20 is rotated, the bracket 150 is fixed to the fixed shaft 15 as shown in FIG.
The bracket 2 and the bracket body 151 are fixed to the support arm 40 so as not to rotate in accordance with the rotation of the monitor device 20. However, in the above-described conventional monitor support device, the fixing by the rubber ring lacks durability when the temperature change in the vehicle compartment and the service life of the vehicle and the device are taken into consideration. There was a problem. In addition, the weight has increased with the increase in the screen size of the monitor device,
Insufficient torque occurs when braking with the frictional force of the rubber ring,
There has been a problem that the angle of the monitor device may change due to the vibration of the car. Accordingly, the present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide a monitor support device having a large static torque and excellent durability. Is what you do. [0008] The present invention has been made to achieve the above-mentioned object, and its contents will be described below with reference to embodiments shown in the drawings. The invention according to claim 1 is characterized in that the support shaft (80) is made of metal, is located at one end thereof, has a non-circular cross section, and is provided with one of the support arm (40) and the monitor device (20). One (for example, a monitor device
20) and a fixed part (85) which is fixed to the non-rotatable part.
0) and a rotating unit (81) rotatably supported by one of the other of the monitoring device (20) (for example, the support arm 40),
A support arm (4) on which a rotating part (81) of the support shaft (80) is supported.
0) and the other of the monitor device (20) (for example, the support arm 40) are opposed at an interval smaller than the diameter of the rotating portion (81) of the support shaft (80), and the rotating portion (81) is on both sides. Pinch from
A clamping member (100) having a pair of clamping portions (101, 101) made of metal
Are fixed so as not to rotate. According to the present invention, the fixing portion (85) at one end of the support shaft (80) is connected to one of the support arm (40) and the monitor device (20) (for example, the monitor device 20). ) So as to be non-rotatable, and the other end of the rotating portion (81) is rotatably supported by one of the support arm (40) and the monitor device (20) (for example, the support arm 40). Thus, the monitor device (20) can be rotated with respect to the support arm (40). The support shaft (80) is provided with a pressing member (100).
Since the support shaft (80) is strongly pinched from both sides by the two holding portions (101, 101) of the support shaft (80), unless the external force exceeding the braking force is applied to the monitor device (20), the monitor is The angle of the device (20) can be kept constant. 1 to 7 show a first embodiment of the present invention. FIG. 1 is an exploded perspective view of a main part of a monitor support device, and FIG. 2 is a partial sectional plan view of the monitor support device. FIG. 3, FIG. 3 is a horizontal cross-sectional plan view of a main part of the monitor support device, FIG. 4 is a vertical cross-sectional side view of a main part of the monitor support device, FIG. 5 is a partial cross-sectional plan view showing a state where the monitor device is removed, and FIG. FIG. 7 is a side view of the monitor support device, and FIG. In FIG. 1, reference numeral 10 denotes a monitor supporting device for mounting on a vehicle. The supporting device 10 is fixed to, for example, a dashboard (not shown) or the like in a vehicle compartment. And the like to rotatably support a color liquid crystal monitor device 20. In this embodiment, the support device 10 is fixed to the base 30 slidably coming out of the dashboard, and the base 30 retreats toward the inside of the dashboard manually or electrically,
The monitor device 20 can be stored inside the dashboard with the monitor device 20 lying down horizontally. As shown in FIG. 2, the support device 10 has a base 41 of a U-shaped metal support arm 40 fixed to the base 30 with bolts 50 and extends in parallel from both ends of the base 41. A synthetic resin bracket 60 is attached to the pair of left and right arms 42, 42.
Are fixed by screws 70 and the like, and a metal support shaft 80 is rotatably incorporated at a position near the tip of each arm 42 in both brackets 60, and both supports incorporated in each bracket 60 of both arms 42 The rotation center axes of the shafts 80 are aligned and arranged linearly. The bracket 60 is, as shown in FIG.
A cylindrical bearing near one end of the flat bracket body 61
A disk-shaped top plate 63 having a main body 62 and substantially parallel to the bracket body 61
The support shaft 80 is inserted into the through hole 64 provided at the center of the frame. The diameter of the through hole 64 matches the diameter of the cylindrical rotating portion 81 of the support shaft 80. As shown in FIG. 3, a circular concave portion 65 is provided at the center of the bottom of the bearing portion 62, which coincides with the center line of the through hole 64. Then, a distal end protruding portion 82 formed at the distal end of the support shaft 80 is inserted into the concave portion 65, and the support shaft 80 is attached to the bracket 60 so as to be rotatable about its axis. As shown in FIGS. 1 and 4, a space 67 penetrating laterally is provided inside the cylindrical side wall 66 of the bearing portion 62.
The space 67 has a rod-shaped stopper 90 extending from the top plate 63 to the bracket main body 61. As shown in FIG. 4, the space 67 has a large opening in the side wall 66 in the direction having the stopper 90, and the opening on the opposite side of the space 67 is slightly smaller than the diameter of the through hole 64 provided in the top plate 63. Narrow width. As shown in FIGS. 1 and 4, the stopper 90 is moved downward from the top plate 63 by removing the position of the through-hole 64, and at the position where the stopper 90 is connected to the bracket body 61, an outwardly projecting projection is provided. An edge 91 is provided. The protruding edge portion 91 has a size that does not protrude from the outer shape of the top plate 63, that is, the circumference formed by the side wall 66. Then, a pedestal portion 92 having a thickness equal to the thickness of the protruding edge portion 91, that is, the height from the upper surface of the bracket main body 61, is formed from the end of the side wall 66 toward the space 67 having a narrow opening. In the space 67, as shown in FIGS.
The pressing member 100 is inserted, and the pressing member 100
A pair of left and right holding portions 101, 101 which are substantially parallel flat plates as a letter shape
And a connecting portion 102 for connecting the two holding portions 101. The gap between the two holding portions 101 is slightly smaller than the diameter of the rotating portion 81 of the support shaft 80. When the connecting portion 102 is inserted into the space 67 so as to come into contact with the stopper 90, the pinching member 100 has a length such that the distal ends of the both holding portions 101 protrude from the narrow opening to the outside of the space 67. . As described above, in the pressing member 100, the size of the gap formed between the two holding portions 101 is smaller than the diameter of the rotating portion 81 of the support shaft 80. As shown, the rotating portion 81 can be sandwiched between the sandwiching portions 101 of the sandwiching member 100. Then, when the support shaft 80 is inserted into the bearing portion 62 and the clamping member 100 is inserted into the space 67 of the bearing portion 62,
At this time, in the direction opposite to the stopper 90, the space 67 is an opening having a width smaller than the diameter of the rotating portion 81, so that the pressing member 10
The tip of 0 receives force from the outside by the side wall 66, and
The gap between the tips of 01 is prevented from opening, and both holding portions 101
Thereby, the rotating portion 81 can be strongly sandwiched. When the connecting portion 102 is inserted into the space 67 so as to be in contact with the stopper 90, at the position where the holding portion 101 is in contact with the rotating portion 81 of the support shaft 80, as shown in FIGS.
A curved portion 64 is formed in the holding portion 101. Therefore, the holding portion 101 and the holding portion 63 are formed by the two curved portions 103 of the holding portion 101.
And the contact area between the rotating unit 81 and the rotating unit 81 can be increased. Further, with the support shaft 80 inserted into the bearing portion 62, the pressing member 100
When the pressure member is incorporated, the pressing member 100 sandwiches the rotating portion 81 by the two curved portions 103, and the pressing member 100 is prevented from coming off. As shown in FIG. 3, the width of the pressing member 100 is set to be equal to the distance from the upper surface of the protruding edge portion 91 to the inner surface of the top plate 63. Further, the support shaft 80 has an annular projecting portion 83 at the distal end position of the rotating portion 81, and the length of the tapered portion 84 from the distal end of the rotating portion 81 to the distal projecting portion 82 is set to the length of the projecting edge portion 91.
And the height of the pedestal 92. For this reason, it is also possible to prevent the annular projection 83 from being positioned below the pressure member 100 and the support shaft 80 coming off. As shown in FIG. 1, the support shaft 80 has a fixed portion 85 at the other end which is larger in diameter than the rotating portion 81 and has a cutout portion 86. It has a non-circular shape, here a D-shaped cross section. Then, as shown in FIG. 5, the bracket 70 incorporating the pressure member 100 so that the support shaft 80 does not come off is
Fix with. When fixing, the fixing part of the support shaft 80
85 are inserted into the mounting holes 22 from both sides of the monitor housing 21 of the monitor device 20, as shown in FIGS. At this time, the support shaft 80 can be fixed to the monitor housing 21 by the cutout portion 86 provided in the fixing portion 85 so that the monitor housing 21 does not cause a rotational displacement with respect to the support shaft 80. When the monitor device 20 is rotated, the bracket 60 is fixed to the support arm 40 so that the fixed shaft 62 and the bracket body 61 do not rotate in accordance with the rotation of the monitor device 20. For example, when fixing the bracket main body 61 to the support arm 40 with the screw 90, as shown in FIG. 5, the protrusion 68 of the bracket main body 61 is inserted into the small hole 43 provided in the support arm 40 and screwed. I have. In this embodiment, the metal support shaft 80 is rotatably mounted on the brackets 60 provided at both ends of the arm portion 42 so that the support shaft 80 rotates integrally with the monitor housing 21. Since the monitor device 20 fixed to the monitor housing 21 is fixed to the monitor housing 21,
Can be rotated with respect to Also, the support shaft 80
Since the clamping member 101 of the clamping member 100 strongly clamps from both sides, the rotation of the support shaft 80 can be braked. For example, since the rotating portion 81 of the metal support shaft 80 is sandwiched between the metal plate-like holding portions 101, a braking torque of about 1 kg · cm can be generated. In addition, since the braking is provided by the contact between the metal and the metal, the supporting device 10 with less wear and deterioration of the movable portion and excellent durability can be obtained. Further, in this embodiment, when the support shaft 80 is sandwiched from both sides to form the holding portion 101, one pressing member 1
Using 00, since the rotating part 81 of the support shaft 80 is inserted between the holding parts 101 of the pressing member 100, the number of parts is small,
The structure is simple, and the assembling and manufacturing of the support device 10 can be easily performed. In the present embodiment, the fixing portion 85 of the support shaft 80 is fixed to the monitor housing 21 of the monitor device 20, and the rotating portion 81 at the other end of the support shaft 80 is attached to the bracket 60 fixed to the support arm 40. Although it is rotatably supported, conversely, the fixing portion 85 of the support shaft 80 may be fixed to the bracket 60, and the rotating portion 81 at the other end of the support shaft 80 may be rotatably supported by the monitor housing 21. At this time, the pressing member 100 is fixed to the monitor housing 21. 8 to 11 show a second embodiment of the present invention. FIG. 8 is a perspective view showing a pressing member, and FIGS.
10 is a side view of a main part of the monitor support device, FIG. 10 is a horizontal sectional view of the main part of the monitor support device, and FIG. 11 is a vertical sectional view of the main part of the monitor support device. The feature of this embodiment is that
As shown in FIG. 8, it is in the shape of a U-shaped clamping member 100. That is, the pressing member 100 also bends a steel plate as in the first embodiment. And
As shown in FIG. 8, a pair of left and right holding portions 101, 101 having a flat plate shape are formed on both sides of the connecting portion 102 of the holding member 100, and a folded portion 104 is provided at each end of each of the holding portions 101. . Therefore, with the support shaft 80 inserted into the bracket 20 as shown in FIG.
When inserted into 7, the folded portion 65 is locked to the side wall 66, as shown in FIG. 11, to prevent the clamping member 100 from dropping off and to strongly clamp the rotating portion 81 from both sides. The support shaft 80 is, as shown in FIG.
It is also possible to adopt a simple shape having only the rotating portion 81 and the fixed portion 85 with a chamfered tip, and the first shape shown in FIG.
As in the embodiment, it is also possible to provide an annular projection 83 so that the support shaft 80 does not come off. On the other hand, FIGS.
FIG. 12 shows a third embodiment of the present invention. FIG. 12 is a perspective view showing a pressing member, FIG. 13 is a half sectional front view of a main part of a monitor support device, and FIG. FIG. 15 is a cross-sectional view, and FIG.
FIG. 2 shows a vertical sectional end view of a main part of the monitor support device. The feature of this embodiment lies in the shape of a U-shaped clamping member 100 as shown in FIG. That is, as shown in FIG. 12, two holding portions 101,
Some use a pressing member 100 in which the connecting members 101 are connected by a connecting portion 102 that is narrower than the holding portions 101. As shown in FIGS. 13 to 16, a blind hole 110 opened in the end face thereof is provided in the bearing portion 62 of the bracket 60.
Is provided. The blind hole 110 is, as shown in FIG.
The support shaft 80 has a rectangular cross section having a width corresponding to the diameter of the rotating part 81 and a width larger than the diameter of the rotating part 81, and has long side walls 111, 111 and short side walls 112, 122 surrounding four sides. The two long side walls 111 opposed to each other are provided with a total of four grooves 113, two in the axial direction of the bearing 62, respectively. The arrangement of the four grooves 113 is shown in FIGS.
As shown in FIG. 6, the distance between the two groove portions 113 provided on one long side wall 111 is symmetrical with respect to the central axis of the bearing portion 62, and is larger than the diameter of the rotating portion 81 of the support shaft 80. The distance between the bottoms of the grooves 113 provided on the opposing long side walls 111 is adjusted to the distance between the two holding portions 101 of the pressing member 100. Slightly larger than the width of Therefore, the pressing member 100 is inserted into the groove 113 so that the connecting portion 102 is located in the blind hole 110 so that the connecting portion 102 is located at the back.
When the support shaft 80 is inserted into the bearing portion 62 of the bracket 60 by pushing the rotating portion 81 between 101, the support shaft 80 makes both sides of the rotating portion 81 contact the long side walls 111 of the blind hole 110, It is pressed into contact with the holding portion 101 from both sides in the direction intersecting with the long side wall 111 and is fixed to the center of the bearing portion 62. The two holding portions 101 of the pressing member 100 having both ends inserted into the groove 113 form a gap having a value smaller than the diameter of the rotating portion 81 when no external force is applied. When the part 81 is inserted into the gap between the two holding parts 101, the two holding parts 101 are curved by elastic deformation so as to be pushed outward and opened, and strongly pinch the rotating part 81 from both sides to rotate the support shaft 80. Apply braking. Therefore, the support shaft 80 is
The monitor support device 10 in which the monitor housing 21 is attached to the arm portion 42 by using the bracket 60 rotatably fixed to the bearing portion 62 is also similar to the first embodiment.
Rotation with respect to 42 is possible, and it can be reliably stopped at an angle where application of external force is stopped. According to the present invention, a support shaft made of metal is rotatably fixed to a bracket provided at the tip of a support arm, and a fixing portion of the support shaft is fixed to a monitor device. Since the rotating part of the rotating support shaft is strongly sandwiched by the holding part of the metal pressing member, a strong rotational braking force can be applied to the support shaft and the monitor device, and the support shaft and the monitor device are moved to the support arm. Since the sliding portion that can be rotatably held and the rotating portion that performs the rotational braking is in mutual contact with metal, it is possible to provide an in-vehicle monitor support device having excellent durability.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a main part of a monitor support device according to a first embodiment. FIG. 2 is a partial cross-sectional plan view of the monitor support device according to the first embodiment. FIG. 3 is a horizontal cross-sectional plan view of a main part of the monitor support device according to the first embodiment. FIG. 4 is a vertical cross-sectional side view of a main part of the monitor support device according to the first embodiment. FIG. 5 is a partial cross-sectional plan view showing a state where the monitor device of the monitor support device according to the first embodiment is removed. FIG. 6 is a side view of the monitor support device according to the first embodiment. FIG. 7 is a partial cross-sectional front view of the monitor support device according to the first embodiment. FIG. 8 is a perspective view showing a pressing member according to a second embodiment. FIG. 9 is a side view of a main part of a monitor support device according to a second embodiment. FIG. 10 is a horizontal cross-sectional view of a main part of a monitor support device according to a second embodiment. FIG. 11 is a vertical sectional view of a main part of a monitor support device according to a second embodiment. FIG. 12 is a perspective view showing a pressing member according to a third embodiment. FIG. 13 is a half sectional front view of a main part of a monitor support device according to a third embodiment. FIG. 14 is a horizontal sectional view of a main part of a monitor support device according to a third embodiment. FIG. 15 is a side view of a main part of a monitor support device according to a third embodiment. FIG. 16 is a vertical cross-sectional end view of a main part of a monitor support device according to a third embodiment. FIG. 17 is a partial cross-sectional plan view showing a conventional vehicle-mounted monitor support device. FIG. 18 is a perspective view of a main part of a conventional monitor support device. [Description of Signs] 10 Monitor support device 20 Monitor device 30 Base 40 Support arm 60 Bracket 80 Support shaft 81 Rotating unit 85 Fixed unit 100 Nipping member 101 Nipping unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60R 11/02 H04N 5/225 H04N 5/64 521

Claims (1)

(57) [Claim 1] An on-vehicle monitor support including a support arm fixed in a vehicle interior and a monitor device rotatably supported on the support arm via a support shaft. In the device, the support shaft is made of metal, located at one end thereof, has a non-circular cross-section, and is fixedly and non-rotatably fixed to one of the support arm and the monitor device, A support arm positioned at the other end and having a circular cross section and rotatably supported by one of the support arm and the monitor device so as to be rotatable; and a support arm on which the rotation portion of the support shaft is supported. And the other one of the monitor device and the other at a distance smaller than the diameter of the rotating portion of the support shaft, sandwich the rotating portion from both sides
An on-vehicle monitor support device, wherein a pressure member having a pair of metal holding portions is fixed so as not to rotate.