JP2003110966A - Mount board for device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mount board for devices on which mount angle of a device can quickly be adjusted and no shock is produced at angle adjustment. SOLUTION: The mount board for device comprises; a mount member 2 on which a device is mounted; a stationary side support 7 provided with a support 6 freely turnably supporting the mount member 2 via a contact part; and a fixing means 8 fixing the mount member 2 to the stationary side support 7 at an optional turning position and capable of freely releasing the fixation. The mount board also has a resistance providing means 12 providing a resistance to turning of the mount member 2 with respect to the support 6 when the fixation of the fixing means 8 is released.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting base for equipment which is particularly effective for heavy equipment such as projectors and liquid crystal televisions.

[0002]

2. Description of the Related Art A case where a projector is attached to the above-mentioned equipment mount and used, will be described. When the projector is hung on the ceiling or installed on a table, it is possible to adjust the angle in the up-down direction or the left-right direction according to the position of the screen with respect to the front and rear direction and the left-right direction with respect to the fixing member. Attach the movable plate with screws to swing around each axis, loosen the screws and align the vertical position,
The position is fixed by the screw, then the screw different from the screw is loosened to adjust the position in the left-right direction, and then the position is fixed by the screw. In the above-mentioned method, the angles must be adjusted in two directions, and the operation of the screws for adjusting the angles is very troublesome and cumbersome, and there is room for improvement. Therefore, for example, in the camera platform, by loosening the operating lever, the camera mounting member can be set in a free state with respect to the support base, and after holding the camera to match the desired angular position, By tightening the operation lever, the camera can be fixed at that angular position.

[0003]

According to the above construction, although the angle adjustment operation of the camera can be performed quickly,
There were the following inconveniences. That is, since the pan head is composed of the spherical body provided at the lower end of the rod-shaped portion extending downward from the mounting member of the camera and the supporting member having the surface contact portion that makes surface contact with the spherical surface of the spherical body, By loosening the operation lever as described above, the spherical body is in a state of freely rotating with respect to the support member. Therefore, if the camera is not held by hand, the weight of the camera tilts the camera vigorously, and after tilting to a predetermined angle, the mounting member contacts the support member and the tilting of the camera stops. There is an inconvenience that a large impact is generated at the time of this stop, and particularly when a heavy object such as a heavy projector is attached to the platform and used, a larger impact is generated, and the platform is diverted as it is. It was impossible.

In view of the above-mentioned situation, the present invention is to solve the problem by providing a device mounting base which can quickly adjust the angle of the device but does not cause a shock when the angle is adjusted. It is in the point of providing.

[0005]

In order to solve the above-mentioned problems, the device mounting base of the present invention is a mounting member to which a device is mounted and a support for rotatably supporting the mounting member via a contact portion. A mounting base for equipment, comprising: a fixed-side support having a portion; and a fixing-releasable fixing means that fixes the mounting member to the fixed-side support at an arbitrary predetermined rotational position, It is characterized in that resistance applying means is provided for applying resistance to the rotation of the mounting member with respect to the support portion in a state where the fixing means is released from being fixed. Therefore, when adjusting the angle of the equipment, even if the fixing means is loosened,
Since the resistance imparting means imparts a resistance to the rotation of the mounting member, the mounting member does not rotate rapidly,
It is done slowly. The resistance force by the resistance applying means,
When the fixing means is loosened, it is optimal to set the mounting member so that it cannot be rotated, and can be rotated by just touching the mounting member. It may be set so that the rotation of the member is performed slowly. As a specific means for applying resistance to the rotation of the mounting member, a contact member is pressed against the contact portion to provide contact resistance.

The contact portion is a spherical contact portion of a substantially spherical body provided on the mounting member, the support portion is a pair of sandwiching members sandwiching the spherical body from both sides, and the resistance applying means is the above-mentioned. It comprises an urging means for urging the pair of holding members to move toward each other. As described above, the fixed-side support is composed of a pair of holding members that sandwich the spherical body from both sides, so that a large contact area can be obtained, and the biasing means always applies the same biasing force to the spherical body to prevent the rotation resistance. It can be surely given.

[0007] One end of the pair of holding members in the longitudinal direction is pivotally connected to each other, and the other end is urged by the urging means toward the side closer to each other. A screw body that can be screwed into a screw portion formed on the other sandwiching member after the screw portion has penetrated through the one sandwiching member, and a shaft portion of the screw body, which is externally mounted, and a proximal end temporal portion of the screw body. And a coil spring disposed between the one holding member and the one holding member. With the above configuration, by changing the screwing amount of the screw body, the position of the base end side head portion of the screw body with respect to the one holding member can be changed, and the biasing force of the coil spring is adjusted. be able to.

The pair of sandwiching members hold the contact portion in contact with each other, and extend from the holding portion to a side opposite to the pivot connecting portion, and the holding portion disposed near the pivot supporting portion. The holding means of the extending portion is provided with the fixing means, and the biasing means is provided at a portion of the extending portion away from the holding portion. By arranging the biasing means on the side away from the pivotal connecting portion as described above, the contact pressure can be increased with a small biasing force.

The fixing means has a shaft body in which a tip screw portion of a rod-shaped portion penetrating the one holding member is screwed into a screw portion formed in the other holding member, and a base end portion of the shaft body. It consists of a rotating operation part. The mounting member can be fixed to or released from the fixed-side support body only by rotating the rotation operation portion.

[0010]

1 and 2 show a projector mounting base on which a projector 1 as an example of a device can be suspended on a ceiling T. The invention is not only used for mounting the projector 1,
It can be used for various devices such as a liquid crystal television.

As shown in FIGS. 1 to 4, the projector mounting base includes a device mounting plate 2 as a mounting member to which the projector 1 is mounted, and a part of the device mounting plate 2 by cutting out substantially the center thereof. The platform ball 5 whose lower end is fixed to a bracket 4 which is screwed to a pair of left and right protrusions 3 and 3 formed by bending the upper side and the device mounting plate 2 to the platform ball 5.
And a fixed side support body 7 that includes a support portion 6 that rotatably supports in any (any) direction via a spherical contact portion 5S of the spherical body 5A, and that is fixed to the ceiling. The fixing means 8 for fixing the device mounting plate 2 to the device 7 at an arbitrary predetermined rotation position (angle)
It consists of and. The pan head 5 passes through the spherical body 5A provided at the upper end of the rod-shaped portion 5B having a circular cross section and the through hole 4E (see FIG. 3) formed in the bracket 4 and the nut 20 (see FIG. 2 and FIG. 3) and the screw portion 5C extending downward from the lower end of the rod portion 5B for screwing and fixing the rod portion 5B, but other configurations may be possible.

The fixed-side support 7 has a pair of left and right ceiling mounting plates 9 and 9 formed in an inverted L shape for suspending and supporting it on the ceiling, and front and rear ends of the ceiling mounting plates 9 and 9, respectively. A U-shaped auxiliary plate 10 for forming a box-shaped box B whose upper side is opened by closing the opening and the opening at the lower end, and the spherical body 5A fixed to the box B on both sides in the left-right direction. A pair of sandwiching members 11 constituting the supporting portion 6 sandwiched from and supported by
A and 11B, and a biasing means 12 for biasing the pair of sandwiching members 11A and 11B to move toward each other, and the biasing means 12 releases the fixing means 8 from the fixed state. In, a resistance applying means for applying a resistance to the rotation of the mounting member 2 with respect to the support portion 6 is configured. Therefore, even if the fixing means 8 is unfixed to adjust the angle of the mounting member 2, the mounting member 2 does not suddenly rotate, and a shock due to abutment is avoided during the angle adjustment. You can The resistance force of the resistance applying means is set to such an extent that when the fixing means 8 is loosened, the mounting member 2 is not rotated, and moreover, the mounting member 2 can be rotated by a slight touch. Optimally, the mounting member 2 may be set to rotate slowly. Further, by forming the box-shaped box B as described above, there is an advantage that the rigidity can be increased while the weight is reduced, but the box-shaped box B does not have to be formed.

As shown in FIGS. 3 to 5, the sandwiching member 1 is provided.
Each of 1A and 11B is provided with an annular pivot connecting portion 14 pivotally connected via a pin 13 at one end, and is made of a plate-shaped member long in the direction orthogonal to the holding direction. Is provided with a substantially hemispherical contact portion 15 as a holding portion for receiving the spherical contact portion 5S of the spherical body 5A, and the extension extended from the contact portion 15 to the opposite side to the pivotal connection portion 14 A projecting portion 17 is provided. Then, a screw portion (not shown) at the lower end of the pin 13 that penetrates the pivotally connecting portions 14 and 14 of the holding members 11A and 11B is formed on the bottom plate portion 10A of the auxiliary plate 10 (not shown). )
Screw 16 inserted into the screw hole 11N formed in the one holding member 11A through a through hole (not shown) formed in the bottom plate portion 10A of the auxiliary plate 10 while being screwed into
11A of one holding member by screwing the screw part of
Are fixed to the auxiliary plate 10. The holding member 11
Although the contact portions 15 of A and 11B are in surface contact with the spherical contact portion 5S, they may be configured to be in line contact with one or a plurality (preferably a plurality) of the spherical contact portion 5S. ,
Further, point contact may be made at a plurality of points (the more the better, the better). P shown in FIGS. 4 and 5 is a pin P provided so as to penetrate the spherical body 5A and have both ends protruding from the spherical contact portion 5S, and both ends of the pin P are formed on the sandwiching members 11A and 11B. The spherical body 5A can be moved only in the concave portions C, C, and the rotation angle of the spherical body 5A can be regulated within a predetermined range to limit the unnecessary angle adjustment range. Good. Specifically, the angle adjustment range is set by slightly increasing the vertical dimension of the recesses C, C with respect to the diameter dimension of the pin P and setting the horizontal dimension larger than the vertical dimension. However, it may be outside the range shown in the figure.

As shown in FIG. 4, the fixing means 8 has a through hole 17A formed in a portion of the extending portion 17 of the other holding member 11B (the right side when the projector 1 is viewed from the front) on the contact portion 15 side. Shaft body 8B in which a distal end screw portion 8A of a rod portion that penetrates through a screw portion 17C formed in the one holding member 11A is screwed, and a rod-shaped rotation operating portion provided at the base end portion of the shaft body 8B. It is composed of 8C and. Therefore, by rotating the rotation operating portion 8C in one direction, the movable holding member 11B is moved closer to the fixed holding member 11A, thereby increasing the holding force for the spherical body 5A, and 1 can be fixed to the fixed side support 7. Also, projector 1
When the angle is adjusted, the rotary operating portion 8C is rotated in the other direction opposite to the above, whereby the movable holding member 11B is moved away from the fixed holding member 11A. Therefore, the clamping force on the spherical body 5A is reduced, or the clamping force is not applied at all. By using the fixing means 8 provided with the rotation operation portion 8C, there is an advantage that the fixing and fixing releasing operation can be performed without a tool, but the fixing means may be constituted by a bolt.

As shown in FIGS. 3 to 5, the biasing means 12 has one end (left side) after the tip of the screw portion 18A penetrates the through hole 17B formed in the other (right side) holding member 11B. Between the screw body 18 that can be screwed into the screw portion 17D formed in the holding member 11A, and between the base end head portion 18B of the screw body 18 and the holding member 11B, which is externally mounted on the screw portion 18A of the screw body 18. And a coil spring 19 disposed in the. Therefore, the one clamping member 11B is moved to the other clamping member 1 by the urging force of the coil spring 19.
Even if the fixing means 8 is loosened as described above by urging the movement toward the 1A side, one holding member 11 is held.
A predetermined clamping force can be applied to the spherical body 5A so that the spherical body 5A does not suddenly rotate with respect to A and 11B or the spherical body 5A does not rotate. Then, the screw body 18 for the screw portion 17D
By changing the amount of screwing, the position of the base end side head portion 18C of the screw body 18 can be changed and the biasing force of the spring 19 can be adjusted. W shown in FIG. 4 is a washer that receives the spring 19, but if the screw body 18 has a receiving portion that can receive the spring 18, the washer may be omitted.

The bracket 4 is, as shown in FIG.
First vertical plate portions 4A, 4A located at both left and right ends fixed to the projecting portions 3, 3 with screws 21 and extending inward from the upper ends of the first vertical plate portions 4A, 4A. The first horizontal plate portions 4B, 4B and the first horizontal plate portions 4B, 4B
Second vertical plate portions 4C, 4C extending upward from the inner ends of 4B that approach each other, and the upper ends of the second vertical plate portions 4C, 4C are connected to each other, and a through hole 4E for the screw portion 5C is formed.
However, other configurations may also be used. Reference numeral 4F shown in the drawing is a protruding piece provided at both front and rear ends of the first horizontal plate portion 4B, and is used for contacting the horizontal portions 3A, 3A provided at the upper end of the protruding portion 3 to determine the positions of both. Although it can function as a positioning member, it may be omitted.

The resistance applying means is composed of a pair of holding members 11A and 11B whose one ends are pivotally connected.
It may be configured as shown in. That is, in FIG. 6 (showing a state cut from the horizontal direction from below),
The above-mentioned screw in which one of the sandwiching members 11A and 11B is separated (independent), one of the sandwiching members 11A is fixed to the auxiliary plate 10 with screws 16 and 16 and the other sandwiching member 11B is arranged at both ends. By the biasing means 12 including the body 18 and the coil spring 19, the other (movable side) holding member 11B is moved and biased substantially parallel to the other holding member 11A (may not be parallel in some cases). I am trying to do it. Then, the sandwiching members 11A, 11
By providing the fixing means 8 between the spherical body 5A sandwiched substantially at the center in the longitudinal direction of B and the biasing means 12, 12, the single fixing means 8 shown in FIGS. Compared to the case where the spherical body 5A is fixed at a predetermined angle, the case where the two fixing means 8 and 8 shown in FIG. 6 are used for fixing the clamping force of the sandwiching members 11A and 11B to the spherical body 5A ( The pressure contact force) can be increased, and the spherical body 5A is prevented from rotating unexpectedly. Further, the two biasing means 12, 12 can surely move and bias the movable holding member 11B to the fixed holding member 11A to provide a highly reliable resistance applying means. Further, the fixing means 8 may be a bolt that requires a tool, in addition to the one having the rotation operation portion 8C. Incidentally, FIG.
Since the other unillustrated reference numerals shown in FIG. 6 are the same as those described above, the description thereof will be omitted. Alternatively, the one sandwiching member 11A, 11B may be omitted. That is, as shown in FIG. 7, the spherical body 5 arranged inside the fixed-side support 7 (having a different shape from that described above).
A flat plate-shaped pressing member 25 having a curved surface (pressing surface) 25A in contact with A at its lower end and a flat upper surface, and the pressing member 25.
And a coil spring 24 for urging the spherical body to move toward the spherical body 5A side. In this case, the urging force of the coil spring 24 causes the pressing member 2 against the spherical body 5A.
The pressing force of 2 will be determined. The pressing member 25
Corresponds to the supporting portion 6.

Although the above-mentioned mount for the projector is of a ceiling suspension type, as shown in FIG. 8, the leg body 26 mounted and supported on a table or the like is used as the fixed side support body 7, and the leg body 26 is used. A pair of sandwiching members 1 forming the support portion 6 inside
It may be configured by arranging 1A and 11B. 8 shown in FIG. 8 is the fixing means, and the urging means 12
Are omitted because they are the same as those described above.
Since the other configurations shown in FIG. 8 are the same as those described above, the same reference numerals are given and the description thereof will be omitted. or,
1 to 8, the spherical body 5A has been described as an example,
It may have a hemispherical shape or an elliptical shape. or,
The spherical body 5A was connected and fixed to the device side, but the fixed side support 7
May be prepared for.

[0019]

According to the first aspect of the present invention, when the angle adjustment of the device is performed by providing the resistance applying means for applying the resistance to the rotation of the mounting member with respect to the support portion in the state where the fixing means is unfixed, the fixing is performed. Even if the means is loosened, the resistance imparting means adds resistance to the rotation of the mounting member, so that the mounting member does not rotate rapidly and a shock does not occur when the angle is adjusted. A mounting base can be provided. Moreover, after the fixing means is loosened, the device can be swung quickly by a predetermined angle through the contact portion, which allows convenient use.

According to the second aspect of the present invention, since the fixed-side support member is composed of the pair of holding members which hold the spherical body from both sides, the contact area can be widened, and the biasing means always applies the same biasing force to the spherical shape. Rotational resistance can be reliably imparted to the body, and reliability can be improved.

According to the third aspect, by changing the screwing amount of the screw body, the position of the base end side head portion of the screw body with respect to the one holding member can be changed, and the biasing force of the coil spring is adjusted. It is possible to adjust the urging force according to the weight of the device, and it can be conveniently used.

According to the fourth aspect, by disposing the urging means on the side away from the pivotal support portion, the contact pressure can be increased with a small urging force, and the urging means is constituted by a spring. In the spring,
There is an advantage that it can be prevented from becoming unusable and can be used for a long period of time.

According to the fifth aspect of the present invention, the mounting member can be fixed to or released from the fixed-side support body only by rotating the rotating operation portion, without using a tool such as a screwdriver. The fixing and releasing operations can be performed quickly, and the operability can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a projector suspended from a ceiling by a mount.

FIG. 2 is a front view of the projector suspended from the ceiling by a mount.

FIG. 3 is an exploded perspective view of a mounting base.

FIG. 4 is an exploded perspective view showing a state immediately before sandwiching the platform ball with a sandwiching member.

FIG. 5 is a cross-sectional plan view of the mounting base.

FIG. 6 is a cross-sectional bottom view showing the configuration of another one of the sandwiching members.

FIG. 7 is a vertical cross-sectional view showing the structure of another support portion.

FIG. 8 is a partially cutaway front view showing a state in which the projector is supported by legs.

[Explanation of symbols]

1 projector 2 Device mounting plate (mounting member) 3 Projection part 3A Horizontal part 4 Bracket 4A 1st vertical plate part 4B 1st horizontal plate part 4C 2nd vertical plate part 4D Connection plate part 4E Through hole 4F protruding piece 5 pan head ball 5A Spherical body 5B Rod part 5C Screw part 5S Spherical contact part 6 Support 7 Fixed side support 8 Fixing means 8A Tip screw part 8B Shaft body 8C Rotation operation part 9 Ceiling mounting plate 10 Auxiliary plate 11A, 11B clamping member 12 Biasing means (resistance applying means) 13 pin 14 pivotal support 15 Contact part (holding part) 16 Screw 17 extension part 17A, 17B through hole 17C, 17D screw part 18 screw body 18A screw part 18B base end side head 19 coil spring 20 screw 24 coil spring 25 pressing member 25A curved surface 26 Leg B Box C recess P pin T ceiling W washer

Claims (5)

[Claims] 1. A mounting member to which a device is mounted, a fixed-side support body including a support portion that rotatably supports the mounting member via a contact portion, and the mounting member with respect to the fixed-side support body. A mounting base for a device, which is provided with a fixing means which can be fixedly released at an arbitrary predetermined rotational position, and which resists the rotation of the mounting member with respect to the support portion when the fixing means is released. A mounting base for equipment, which is provided with a resistance applying means for applying. 2. The contact portion is a spherical contact portion of a substantially spherical body provided in the mounting member, the support portion is a pair of sandwiching members sandwiching the spherical body from both sides, and the resistance applying means is 2. The equipment mounting base according to claim 1, further comprising a biasing means for biasing the pair of holding members to move toward each other. 3. A structure in which one ends of the pair of holding members in the longitudinal direction are pivotally connected to each other, and the other ends are urged by the urging means toward the sides approaching each other. After the tip screw portion penetrates the one holding member,
A screw body that can be screwed into a screw portion formed on the other holding member, and is mounted on the shaft portion of the screw body, and is arranged between the proximal end head portion of the screw body and the one holding member. The device mounting base according to claim 2, comprising a coil spring. 4. The pair of sandwiching members holds the spherical body in contact with each other, and a holding portion arranged in the vicinity of the pivotal support portion, and the holding portion on the opposite side of the pivotal support portion. 4. An extending portion which is extended, wherein the fixing means is provided at a holding portion side portion of the extending portion, and the biasing means is provided at a side portion of the extending portion that is away from the holding portion. Mounting bracket for the listed equipment. 5. A shaft body in which the fixing means causes a tip screw portion of a rod-shaped portion penetrating the one holding member to be screwed into a screw portion formed in the other holding member, and a base end of the shaft body. The equipment mount according to claim 1 or 4, comprising a rotary operation part provided in the part.