JP2010143431A - Monitor stand - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction type monitor stand for allowing suction fixing operation and the height adjustment-fixation of a motor with simple operation. <P>SOLUTION: An operation lever 80 is mounted on a supporting base 30 covering a sucker 10 at its upper side. An action lever 20 is erected and fixed onto the upper side center of the sucker 10. When the operation lever 80 is inclined, the action lever 20 is moved up with sliding protrusions 84a, 84b of the operation lever 80 as supporting points in accordance with the constraining conditions of a mechanism. As a result, the center region of the sucker 10 is pulled up and fixed to a sucked face 110 with strong suction force, and the angle of a turning arm 50 relating to the height setting of the monitor 100 is locked with the front end face of the action lever 20 engaging with sawtooth-shaped uneven portions 21, (55a, 55b) on the bearing portion side of the turning arm 50. The operation lever 80 after inclined is locked in the state of being inclined by the resilient force of an O-ring 15. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a monitor stand, and more particularly, to a configuration of a monitor stand capable of attaching a monitor such as a display device of a navigation system to a dashboard of an automobile with a simple angle by a simple operation.

In recent years, with the spread of navigation systems using GPS (Global Positioning System), in many automobiles, a liquid crystal monitor is attached at a position that is easy to see from the driver's seat.
The LCD monitor is installed with a monitor stand having a structure that can change the position and angle of the screen as freely as possible. A method of adhering to a board or the like and a method of adsorbing with a suction cup are adopted.

The sticking type monitor stand is disclosed in the following Patent Documents 1, 2, 3 and the like, and the adsorption method is also proposed in the following Patent Documents 4, 5, etc., but each has advantages and disadvantages.
That is, in the sticking method, the flatness of the sticking surface does not matter so much, but the monitor stand becomes a semi-permanent fixed installation condition, and when removing the monitor stand, removal of the adhesive that has adhered after peeling off In contrast, the suction method requires a certain level of flatness on the surface to be sucked, but can be freely attached and detached if the flatness condition is satisfied. There is an advantage that the adsorbed surface such as the dashboard is not soiled.

In addition, in the case of a stick-on type monitor stand, a mechanism that can be fixed by turning in the horizontal direction as well as a variable setting of the position in the height direction of the monitor and the tilt angle in the front-rear direction of the screen. Although it is necessary to install it, it is easy to attach and detach with the suction type monitor stand, so the angle in the horizontal turning direction can be adjusted at the time of suction installation, and it can be turned and fixed in the horizontal direction like the sticking method. No mechanism is required.
Therefore, generally speaking, it seems that the adsorption type monitor stand has an advantage over the sticking type.

Japanese Patent No. 3828884 Registered Utility Model No. 3091972 Registered Utility Model No. 3116100 JP 2007-285485 A JP 2008-239100 A

By the way, from the viewpoint of the adhering force of the monitor stand to the mounting surface, the adsorption method is generally considered to be considerably lower than the adhering method.
In a monitor stand for in-vehicle use, a relatively large peeling torque acts on the monitor stand when vibration during driving of the vehicle is transmitted to the monitor, and in a suction method with a weak adhesive force, the monitor stand is peeled off from the suction surface. End up.
For this reason, in the suction-type monitor stand, the suction force due to the elastic restoring force of the suction cup is not enough, and the suction cup is used to further depressurize the space formed between the suction surface and the suction cup while pressing the suction cup. In many cases, a mechanism is provided in which a stronger suction force is obtained by forcibly pulling up the central region while pressing the peripheral region.

Therefore, in such a suction-type monitor stand, (1) the suction / fixing operation to the suction surface of the monitor stand itself, which also sets the angle of the monitor's horizontal turning direction, and (2) it is attached via an arm. It is necessary to adjust and fix the height of the monitor by rotating the arm, and (3) to adjust and fix the tilt angle related to the front and rear direction of the monitor screen, which makes the operation complicated There's a problem.
In addition, in the case of a suction-type monitor stand, the monitor stand may be peeled off due to peeling torque based on continuous vibrations in any way. It is inevitable that a large torque is applied to the monitor stand, and the adjustment operation at that time is considerably troublesome if the three operations are performed separately as described above.

  Therefore, the present invention enables the above-mentioned suction-type monitor stand to perform its own suction-fixing operation and the height adjustment / fixing operation of the monitor at the same time by a single lever operation. The purpose is to provide a stand.

  The present invention comprises a suction cup made of an elastic material, a peripheral region on the suction surface side as a contact surface with respect to the suction surface and a central region as a concave surface, and a surface on one side opposite to the suction surface of the suction cup The working rod in which the other end side is formed as a serrated irregular surface and the engaging portion is formed in the middle, and the suction surface of the suction cup are A flange portion that is in contact with the peripheral region of the opposite surface and has a concave surface formed in the central region so as to face each other through a gap, a cylindrical portion that allows the operating rod to be slidably inserted, and a rotation described later A support base integrally formed with a bearing that rotatably holds one end of the arm, and one end rotatably held by the bearing of the support base. A serrated irregular surface that meshes with the serrated irregular surface of the working rod along the direction. The support base is formed in a form in which a pivot arm provided with a monitor mounting portion on the other end side, and a long arm portion and a short arm portion are connected in an L shape or a V shape. A sliding surface in which the connecting portion of the long arm portion and the short arm portion is provided on the flange portion side of the support base in the process of tilting the long arm portion toward the flange portion side of the support base. A lock operating lever that moves the operating rod toward the bearing portion side of the support base by engaging the distal end side of the short arm portion with the engaging portion of the operating rod while moving along In a state where the long arm portion of the suction rod is tilted at a certain angle or more, the operating rod is moved to the bearing portion side of the support base to retract the central region of the suction cup, and the serrated irregularities on the end surface of the working rod The surface meshes with the serrated uneven surface of the rotating arm, and the suction The lock is brought into a locked state by urging the operating rod toward the suction cup side by the elastic force generated by the pressure contact between the center portion of the support base and the flange portion of the support base, and applying the rotational torque in the tilt direction to the lock operating lever. The present invention relates to a monitor stand having a mechanism.

According to the present invention, when the lock operating lever is tilted in a state where the suction cup is in contact with or lightly pressed against the suction surface, the operating rod moves on the basis of the lever principle, and the central area of the suction cup is pulled up. By reducing the gap between the suction surface and the central area of the suction cup, the monitor stand can be sucked and fixed with a strong suction force, and the rotating arm is temporarily supported at a desired inclination angle. In this state, the serrated uneven surfaces of the end of the operating rod and the end of the rotating arm mesh with each other, and the rotating arm is fixed at the tilt angle.
That is, the monitor stand can be sucked and fixed by a one-touch operation on the lock operation lever in a state where the monitor screen is set at a desired horizontal turning angle and the monitor is set at a desired height.
Further, the lock operation lever itself must be locked at an inclined position, and the lock operation lever has a form in which a long arm portion and a short arm portion are connected in an L shape or a V shape. The operating rod can be biased to the suction cup side by utilizing the elastic force generated by the pressure contact between the central portion of the suction cup and the flange portion of the support base, whereby the lock operation lever is fixed at a certain angle. When tilted as described above, rotational torque in the tilting direction acts, and it is possible to prevent rotating in the reverse direction and returning.

In the present invention, regarding the mechanical relationship between the lock operation lever, the support base, and the operating rod, the lock operation lever has a long arm portion and a short arm portion having a hole drilled on the tip side. A pair of lever portions connected in a V-shape or a V-shape, and the pair of lever portions separated from each other by a distance corresponding to the outer diameter of the cylindrical portion of the support base to connect the long arm portions. The support base is formed with a long hole corresponding to the sliding distance of the operating rod at a symmetrical position on the outer periphery of the cylindrical part, and corresponds to each long hole on the flange part side. A sliding surface on which a connecting portion of the long arm portion and the short arm portion of the lock operation lever moves is formed at a position where the engaging portion of the lock lever is used as a hole. The shaft that passes through the holes of the support base, the long holes of the support base, and the holes of the operating rod. It is reasonable to the mounted so structured.
If a sliding projection is provided at the connecting portion of the long arm portion and the short arm portion of the lock operating lever, the position of the engaging portion (or long hole) of the operating rod and the required tilting of the long arm portion to be operated The angle can be variably set, and the design freedom can be widened.

In addition, if an O-ring is fitted around the central portion of the suction cup where the operating rod is fixed upright, the elastic force caused by the pressure contact between the central portion of the suction cup and the flange portion of the support base is generated. It can be obtained more reliably, and a stable lock at the tilt position of the lock operation lever can be realized.
The O-ring has a function of attenuating vibration transmitted from the suction surface of the monitor stand to the support base by its elasticity together with the suction cup.

  Further, the rotating arm is a hollow casing configured by joining a pair of split molds divided along the longitudinal direction, and the casing portion of the rotating arm sandwiched between the bearing portions of the support base A metal bearing through which a tightening screw passes is fitted and fixed, and the fitting and fixing portion of the metal bearing in the rotating arm is clamped by the bearing portion of the support base by the tightening screw. Thus, the rotational inertia of the rotating arm when vibration is applied to the monitor stand can be reduced, and the rotational sliding friction between the rotating arm and the bearing portion of the support base can be increased to increase the rotation of the rotating arm. The adjustment setting of the angle of the moving arm is facilitated, and a lock operation for tilting the lock operation lever without supporting the rotating arm by hand is also possible.

  For adjusting and fixing the tilt angle in the front-rear direction of the monitor screen, the monitor mounting portion of the rotating arm has a bearing portion at the tip of the rotating arm, and the monitor portion has a monitor portion. This is possible by attaching the mounting adapter by a mechanism that can be rotated / fixed.

Since the monitor stand of the present invention has the above configuration, the following effects can be obtained.
In a suction-type monitor stand with a suction cup, the gap between the suction face and the suction cup is forcibly reduced to fix the monitor stand to the suction face with a strong suction force (also serves as the angle setting work for the horizontal turning direction of the monitor) ) And fixing the angle of the rotating arm that sets the height of the monitor can be done with a one-touch operation on the lock operation lever, simplifying the installation work of the monitor.
In addition, a simple mechanism rationally prevents the lock operation lever from reversing and enables the monitor stand to be stably fixed and locked.

Embodiments of a monitor stand according to the present invention will be described below with reference to the drawings.
1A is a plan view, FIG. 1B is a side view, and FIG. 2C is a bottom view, and FIG. 2 is an exploded perspective view of components of the monitor stand.

In each figure, reference numeral 10 denotes a sucker made of silicon rubber, which has a circular plane shape, and a peeling tab 11 is formed on a part of the periphery.
Further, the peripheral region on the suction surface side is an annular flat portion 12, and a concave portion 13 which is a frustoconical recess is formed in a central region corresponding to the inside thereof.
Further, on the suction surface side of the suction cup 10, a gel layer 10a is deposited on the suction surface side in order to improve the bondability with the suction surface. This gel layer 10a is a hydrogel in which water and a humectant, an electrolyte, etc. are stably held as necessary in a hydrophilic resin matrix and have a certain adhesive property. For example, Sekisui Plastics Technogel (registered trademark) of Kogyo Co., Ltd. can be applied.

3 and FIG. 3 (A) is a plan view of the assembly of the suction cup 10 and the operating rod 20, FIG. 3 (B) is a cross-sectional view taken along the line XX in (A), and (C) is (A). As shown in the sectional view taken along the line ZZ in FIG. 4D, (D) is a bottom view], the flange portion formed at one end of the operating rod 20 projects into the center of the suction cup 10 on the side opposite to the suction surface. The working rod 20 is embedded in the formed short cylindrical portion 14 and is configured to stand and be fixed at the center of the suction cup 10. This assembly is manufactured by embedding one end of the operating rod 20 when the suction cup 10 is injection molded.
Further, regarding the operating rod 20, the portion other than the flange portion is formed as a plate rod-like portion, and a serrated uneven portion 21 is formed along the arc-shaped concave portion on the tip surface, and in the intermediate portion. An engagement hole 22 is formed.

  Referring back to FIGS. 1 and 2, reference numeral 30 denotes a support base, a flange portion 31 covering the upper side of the suction cup 10, a cylinder portion 32 through which the operating rod 20 is slidably inserted, and a rotating arm 50 described later. The bearings 33a and 33b that rotatably hold one end are integrally formed of ABS (acrylonitrile butadiene styrene) resin (or polycarbonate-blended ABS resin). Here, the details of the support base 30 are shown. 4 [(A) is a plan view, (B) is a side view, (C) is a bottom view, (D) is a front view, (E) is a cross-sectional view taken along line XX in (A), (F) is A cross-sectional view taken along the line YY in (D) and (G) a cross-sectional view taken along the line ZZ in (B)] will also be described.

First, the flange portion 31 is in contact with the peripheral annular region of the suction cup 10, but is formed as a truncated cone-shaped recess 31a that faces the central region including the short cylindrical portion 14 with a certain gap. In addition, a circular recessed portion 31b into which the short cylindrical portion 14 of the suction cup 10 is fitted is also formed in the central portion.
As for the cylindrical portion 32, elongated holes 34a and 34b corresponding to the sliding distance of the operating rod 20 are formed at symmetrical positions on the outer peripheral wall, and a circular recessed portion 31b on the flange portion 31 side is formed therein. A guide wall 37a, 37b in the axial direction so as to restrain the partition wall 36 in which a hole 35 through which the operating rod 20 passes is formed, and both side surfaces of the operating rod 20 passing through the hole 35. Is provided. In the guide plates 37a and 37b, slits 38a and 38b are formed at positions facing the long holes 34a and 34b, respectively.
A block is formed below the long holes 34a and 34b of the cylindrical portion 32 at the connecting portion of the flange portion 31 and the cylindrical portion 32, and the upper side surface thereof is a sliding protrusion of the lock operation lever 80 described later. Flat sliding surfaces 39a and 39b on which the portions 84a and 84b move are provided.
Further, the bearing portions 33a and 33b are configured by extending the cylindrical portion 32 at positions corresponding to the respective long holes 34a and 34b of the cylindrical portion 32 in the axial direction, and between the bearing portions 33a and 33b. Further, one end of a later-described rotating arm 50 is rotatably held.
Therefore, holes 40a and 40b through which the tightening screw 40 passes are formed in the bearing portions 33a and 33b, and the head 42, the washer 43 and the nut 44 of the tightening screw 40 from the viewpoint of design. Ring wall portions 46a and 46b are formed so as to surround the washers 45 and make them inconspicuous.
As shown in FIG. 1 (B), the pivot arm 50 can be pivoted greatly only to one side, and it is clear from FIGS. 4 (B), (D), and (E). In addition, the outer peripheral wall of the cylindrical portion 32 is formed low on the rotating side.

Referring back to FIGS. 1 and 2, reference numeral 50 denotes a rotating arm constituted by a pair of split molds 50a and 50b. 5 and 6 are detailed views relating to the split molds 50a and 50b, respectively. 5A is a right side view of the split mold 50a, FIG. 5B is a front view, FIG. 5C is a left side view, FIG. 5D is a rear view, FIG. 5E is a plan view, and FIG. A bottom view, (G) is an enlarged view of a portion sandwiched between the bearing portions 33a, 33b of the support base 30 in (C), FIG. 6 (A) is a left side view of the split mold 50b, and FIG. (C) is a right side view, (D) is a rear view, (E) is a plan view, (F) is a bottom view, and (G) is a bearing portion 33a, 33b of the support base 30 in (C). It is an enlarged view of the part clamped.
Each split mold 50a, 50b is formed of ABS resin (or polycarbonate-blended ABS resin) in the same manner as the support base 30. The split mold 50a is shown in FIG. 5C, and the split mold 50b is shown in FIG. ) Can be assembled with the joint surface as the joint surface, but when the split molds 50a and 50b are opened to the left and right at the joint surface, the basic form is symmetrical, and the only difference is the split mold 50a. The only difference is that a positioning pin hole 51a is formed and a pin 51b is formed in the split mold 50b.

The middle section of each split mold 50a, 50b is a hollow casing provided with ribs 52a, 52b, and the end of the support base 30 sandwiched between the bearing portions 33a, 33b is shown in FIG. ) Is a front view, (B) is a side view, and (C) is an enlarged cross-sectional view taken along arrow YY of (A)].
Here, the bearing 60 is such that the outer periphery of the intermediate section of the metal cylinder 61 is covered with a regular hexagonal cylinder 62 made of ABS resin (or polycarbonate blended ABS resin). The metal cylinder 61 and the regular hexagonal cylinder 62 are prevented from rotating relative to each other because a part of the outer peripheral surface is cut out flat, and the regular hexagon formed in each split mold 50a, 50b. The portion of the regular hexagonal cylindrical body 62 of the bearing 60 is fitted into the rectangular recesses 53a and 53b, and the bearing 60 is fixed.

Further, as shown in FIGS. 5 (G) and 6 (G), the end portions of the split molds 50a and 50b sandwiched by the bearing portions 33a and 33b of the support base 30 have respective bearings 60. The above-mentioned operation is performed along the surface of the arc around the shaft center of the bearing 60 (that is, the surface in the rotational circumferential direction of the rotational arm 50), which is a thick portion around the fitting / fixing portion. Sawtooth-shaped unevenness 55a, 55b that meshes with the sawtooth-shaped unevenness 21 formed on the front end surface of the flange 20 is formed.
In addition, the formation range of the serrated irregularities 55a and 55b in each of the split molds 50a and 50b is about 120 ° (θ1 = θ1 = 82.5 °, θ 2 = 37.5 °).
Therefore, by joining the split dies 50a and 50b, the respective serrated irregularities 55a and 55b are connected in the width direction so that the double-sided width forms a meshing surface with respect to the operating rod 20 side. become.

As shown in FIGS. 1 and 2, the rotating arm 50 is divided into two forks at the other end side to constitute a bearing mechanism that can be rotated / fixed to the monitor mounting adapter 70. Each split mold 50a, With respect to 50b, as shown in FIGS. 5 and 6, one bearing portions 56a and 56b are formed so as to be shifted outward from the joint surface.
The bearing portions 56a and 56b are provided with holes 57a and 57b through which a tightening screw 65 described later passes, and annular protrusions 58a and 58b around the holes 57a and 57b on the inner surface. Are formed on the surfaces of the annular convex portions 58a and 58b.

On the other hand, the monitor mounting adapter 70 is shown in FIG. 8 [(A) is a front view, (B) is a side view, (C) is a bottom view, and (D) is a cross-sectional view taken along arrow YY in (A)]. The bearing 71 has a circular recess in which the annular protrusions 58a and 58b of the rotating arm 50 are fitted around the open ends of the hole 72 through which the tightening screw 65 described later passes. 73a and 73b are formed, and on the bottom surface thereof, radial sawtooth irregularities 74a and 74b are formed.
Therefore, as shown in FIG. 2, the annular projections 58 a and 58 b on the rotating arm 50 side are provided between the bearing portion 71 of the monitor mounting adapter 70 and the bearing portions 56 a and 56 b of the rotating arm 50. Are attached so as to fit into the circular recesses 73a and 73b on the side, and are tightened with the tightening screw 65, washer 66 and nut 67, so that the serrated irregularities 59a and 59b and the circular recesses of the annular convex portions 58a and 58b The serrations 74a and 74b of 73a and 73b strongly mesh with each other, and the rotation of the monitor mounting adapter 70 relative to the rotation arm 50 can be completely restrained. Conversely, when the tightening screw 65 is loosened, the monitor is rotated. Can be moved.
In addition, a hole 76 is formed in the monitor attaching portion 75 of the monitor mounting adapter 70, and as shown in FIG. The monitor is fixed by pulling it toward the landing portion 75 side.

By the way, in the monitor stand of this embodiment, as shown in FIGS. 1 and 2, a lock operation lever 80 is attached to the cylindrical portion 32 of the support base 30, and by tilting the lock operation lever 80, The suction / fixing of the suction cup 10 and the rotation arm 50 can be locked simultaneously.
Here, the lock operating lever 80 is formed of ABS resin (or ABS compounded with polycarbonate), as shown in FIG. 9 [(A) is a front view, (B) is a side view, and (C) is a bottom view]. In addition, the long arm portions 81a and 81b and the short arm portions 83a and 83b having holes 82a and 82b drilled on the distal end side are connected in an L shape, and sliding protrusions 84a and 84b are provided at the connecting portions. A pair of lever portions, and a connecting plate portion 85 that connects the long arm portions 81a and 81b by separating each lever portion by a distance corresponding to the outer diameter of the cylindrical portion 32 of the support base 30 in parallel. Become.

Then, the lock operating lever 80 is formed with respect to the cylindrical portion 32 of the support base 30 and the holes 82a and 82b of the short arm portions 83a and 83b, the long holes 34a and 34b of the cylindrical portion 32 of the support base 30, and the operating rod 20 It is attached by passing the shaft 90 through the engagement hole 22, and the sliding protrusions 84a and 84b of the lock operation lever 80 slide on the sliding surfaces 39a and 39b on the support base 30 side. ing.
As described above, the shaft 90 extends horizontally through the cylinder portion 32 and the operating rod 20 of the support base 30, and both ends thereof are holes 82a, 83a, 83b of the short arm portions 83a, 83b of the lock operation lever 80. Bonded to 82b.

The monitor stand according to the present embodiment, which is a combination of the above components, is arranged and fixed in the procedure as shown in FIGS. However, in each drawing, the suction cup 10 and the support base 30 are axial cross-sectional views for easy understanding of the operation state of the mechanism, and the rotary arm 50 has the split die 50b removed at the joint surface of each split die 50a, 50b. Only one split mold 50a is shown.
First, as shown in FIG. 10, the monitor 100 is fixed to the monitor mounting adapter 70 in advance, and the lock operating lever 80 stands obliquely upward on the side of the cylindrical portion 32 of the support base 30 (non-locked). State).

Then, taking into account the angle of the horizontal turning direction of the monitor 100, lightly press the suction cup 10 side against the suction surface 110 such as the dashboard of an automobile, so that the lower surface (gel layer 10a) of the monitor stand is attached to the suction surface. Temporarily fastened to 110.
In this temporarily fixed state, the suction cup 10 has the gel layer 10a in close contact with the attracted surface 110 to fix the monitor stand, but the space between the gel layer 10a and the attracted surface 110 is due to the elastic restoring force of the sucker 10. The suction force is not so great that the pressure is reduced, and once it is sucked, it can be easily peeled off using the tab 11, and the angle of the monitor 100 in the horizontal turning direction can be freely adjusted.

In this temporarily fixed state, the serrated irregularities 21 formed on the distal end surface of the operating rod 20 do not mesh with the serrated irregularities 55a and 55b on the rotating arm 50 side, and the rotating arm 50 is in a rotatable state.
However, the bearing 60 fitted and fixed to the rotating arm 50 is strongly held between the bearing portions 33a and 33b on the support base 30 side by the tightening force of the tightening screw 40 and the nut 44 (see FIG. 2), the rotation friction of the rotation arm 50 with respect to the support base 30 is large, and it does not rotate by the torque due to its own weight of the monitor 100. It has become.
The relationship between the pivot arm 50 and the monitor mounting adapter 70 can be selected between a pivotable state and a fixed state by tightening / releasing with a tightening screw 65 and a nut 67. In this case, the fixed state is set.

  Therefore, as shown in FIG. 11 (A), the angle of the turning arm 50 is adjusted by hand so that the monitor 100 is almost the desired height, and the lock operation lever is in a state where the monitor 100 is in an appropriate position. The rotating arm 50 is locked by tilting 80 toward the flange portion 31 side of the support base 30, but in the monitor stand of this embodiment, the suction cup 10 is temporarily stopped simultaneously by tilting the lock operation lever 80. To a strong adsorption state.

Focusing on the tilting process of the lock operating lever 80, first, in the state of FIG. 11 (A) before tilting, the sliding protrusion formed at the connecting portion of the long arm portions 81a, 81b and the short arm portions 83a, 83b. 84a and 84b are on the left side of the shaft 90, and the shaft 90 passes through the holes 82a and 82b of the short arm portions 83a and 83b, the long holes 34a and 34b of the support base 30, and the engagement hole 22 of the operating rod 20 as described above. However, as the shaft 90 is tilted, the lock operation lever 80 rotates around the shaft 90 and slides because the shaft 90 is restrained only by the vertical movement of the long holes 34a and 34b of the support base 30. The moving projections 84a and 84b come into contact with the sliding surfaces 39a and 39b formed at the connecting portion between the flange portion 31 and the cylindrical portion 32 of the support base 30.
When the lock operation lever 80 is further rotated, the sliding protrusions 84a and 84b of the lock operation lever 80 rotate around the shaft 90 while moving to the left on the sliding surfaces 39a and 39b. As a result, the shaft 90 moves upward while being guided by the long holes 34a and 34b of the support base 30.

As a result, the operating rod 20 is forcibly moved upward, and the serrated irregularities 21 on the distal end surface of the operating rod 20 and the serrated irregularities 55a and 55b of the rotating arm 50 are in mesh, The central region of the suction cup 10 is pulled up, and the pressure in the space S formed between the gel layer 10a and the attracted surface 110 is reduced, and the suction force of the suction cup 10 is greatly increased.
That is, by tilting the lock operation lever 80, it is possible to simultaneously perform the lock operation of the rotating arm 50 and the transition operation from the temporarily fixed state of the suction cup 10 to the strong suction state.

By the way, as shown in FIG. 11B, the tilting operation of the lock operating lever 80 is completed when the sliding protrusions 84a and 84b move to the right side of the shaft 90 on the sliding surfaces 39a and 39b.
At that stage, the lock operating lever 80 has further rotated slightly from the state where the operating rod 20 is moved to the upper forward limit, and the short cylindrical portion 14 of the suction cup 10 pulled up by the operating rod 20 is the cylinder of the support base 30. The O-ring 15 fitted in the periphery of the short cylindrical portion 14 of the suction cup 10 is sandwiched between the suction cup 10 and the flange portion 31 of the support base 30 while being in pressure contact with the partition wall 36 formed in the portion 32. It is in a state.

Therefore, in the state of FIG. 11 (B), the movement of the operating rod 20 causes the rotating arm 50 to be locked and the strong suction state by pulling up the central region of the suction cup 10 to constitute a downward movement with respect to the operating rod 20. An elastic biasing force is applied, thereby applying a torque in the left rotation direction (tilting direction) to the lock operation lever 80, and preventing the lock operation lever 80 from rotating back to the original state from the tilted state. .
In other words, the lock mechanism for the lock operation lever 80 itself is realized by utilizing the elastic force of the short cylindrical portion 14 of the suction cup 10 and the O-ring 15, and the rotation operation for the lock operation lever 80 is shown in FIG. ) And (B) can be stably maintained.

  The monitor 100 is set to a desired height when the lock arm 50 is locked by the lock operation lever 80 and is sucked and fixed by the suction cup 10. However, the tilt angle of the monitor 100 in the front-rear direction is adjusted. In this case, the relationship between the fixed rotation arm 50 and the monitor mounting adapter 70 is made loose by tightening the tightening screw 65 and nut 67, set to a desired angle, and then tightened. Tighten it again with the attaching screw 65 and the nut 67 to fix it.

  With the above operation, the support base 30 is completely fixed by the suction cup 10 that is strongly adsorbed to the suction surface 110, and the relationship between the support base 30 and the rotary arm 50 is the relationship between the operating rod 20 and the rotary arm 50. It is fixed by the meshing relationship of the serrated irregularities 21, (55a, 55b), and the relationship between the rotating arm 50 and the monitor mounting adapter 70 is also the respective serrated irregularities (59a, 59b), (74a, 74b) ), The monitor 100 is firmly fixed and supported on the attracted surface 110 via the monitor stand.

By the way, the fixed condition is sufficient as long as the surface to be attracted 110 does not vibrate, but if the surface to be attracted 110 is a surface that vibrates vigorously like a dashboard of an automobile, In general, since the monitor 100 has a considerable mass, a large rotational torque frequently acts on the suction cup 10 via the support base 30, even if the above-described strong adsorption conditions are configured. The monitor stand may peel off from the attracted surface 110 without being able to withstand the load of rotational torque.
In the case of the monitor stand of this embodiment, the vibration transmitted from the attracted surface 110 to the support base 30 can be damped to some extent by the elasticity of the suction cup 10 and the O-ring 15, but for the severe vibration with a large amplitude. Not very effective.

In such a case, as shown in FIG. 12, the lower side of the monitor 100 is fixed in a state of being placed on the attracted surface 110.
That is, the sawtooth irregularities 21 (55a, 55b) of the operating rod 20 and the rotating arm 50 in the monitor stand of this embodiment are such that the rotating angle of the rotating arm 50 is 75 ° above the horizontal and the lower side. If the angle is within the range of 15 °, a meshing relationship can be obtained, and various sizes of monitors 100 can be fixedly installed in the state shown in FIG.

The monitor stand according to the present embodiment has the above-described structure and function. However, the relationship between individual elements and other elements may be modified as follows. .
(1) As shown in FIG. 9, in the lock operation lever 80 of the present embodiment, a pair of lever portions composed of long arm portions 81a and 81b and short arm portions 83a and 83b are connected by a connecting plate portion 85. Each lever portion is attached so as to sandwich both side portions of the cylindrical portion 32 of the support base 30. However, the present invention is not limited to such a configuration, and the lever portion is configured as a single plate lever. The short arm portion and the operating rod 20 may be engaged with each other through an axial slit formed in 32. However, in that case, the surfaces corresponding to the sliding surfaces 39a and 39b in the present embodiment are formed inside the cylindrical portion 32 of the support base 30.
Further, in this case, the engagement means is not the method using the shaft 30 as in the present embodiment, but is the engagement formed on the side of the operating rod when the short arm rotates as the lock operation lever tilts. A configuration may be adopted in which the operating rod is moved upward by engaging with the joint.
(2) In the lock operation lever 80 of the present embodiment, the long arm portions 81a and 81b and the short arm portions 83a and 83b are connected in an L shape. It is also possible to adopt a connection form, and the side end surfaces of the connection part may be the sliding protrusions 84a and 84b.
(3) In this embodiment, an O-ring 15 is fitted around the short cylindrical portion 14 of the suction cup 10, and the lock operation lever 80 is locked by the elastic force of the short cylindrical portion 14 of the suction cup 10 and the O-ring 15. Although the mechanism is configured, it is not necessary to use the O-ring 15 when the elastic force of the short cylindrical portion 14 of the suction cup 10 is sufficient.
(4) In this embodiment, ABS resin (or polycarbonate blended ABS resin) is applied to the material of the main elements such as the support base 30, the split molds 50a and 50b of the rotary arm, and the lock operation lever 80. However, the present invention is not limited thereto, and any material that is lightweight, has high mechanical strength, and has excellent moldability can be used.

  The present invention can be applied to a monitor stand for attaching a small monitor such as a navigation system to a dashboard of an automobile and the like, and particularly applicable to a suction stand using a suction cup.

(A): Top view and (B): Front view and (C): Bottom view of a monitor stand according to an embodiment of the present invention. It is a component disassembled perspective view of a monitor stand. It is an assembly detailed drawing of a suction cup and an operating rod, (A) is a plan view, (B) is a cross-sectional view taken along the line XX in (A), (C) is a cross-sectional view taken along the line ZZ in (A), (D) is a bottom view. It is detail drawing of a support base, (A) is a top view, (B) is a side view, (C) is a bottom view, (D) is a front view, (E) is a cross section taken along the line XX in (A). (F) is a cross-sectional view taken along arrow YY in (D), and (G) is a cross-sectional view taken along arrow ZZ in (B). It is detail drawing which concerns on the split mold 50a, (A) is a right view, (B) is a front view, (C) is a left view, (D) is a rear view, (E) is a top view, (F) Is a bottom view, and (G) is an enlarged view of a portion clamped by the bearing portion of the support base in (C). It is a detailed view concerning the split mold 50b, (A) is a left side view, (B) is a front view, (C) is a right side view, (D) is a rear view, (E) is a top view, (F) Is a bottom view, and (G) is an enlarged view of a portion clamped by the bearing portion of the support base in (C). It is a detailed view of a bearing that is fitted and fixed to the end of the rotating base that is clamped by the bearing portion of the support base, (A) is a front view, (B) is a side view, and (C) is ( It is a YY arrow expanded sectional view of A). It is detail drawing of the monitor attachment adapter, (A) is a front view, (B) is a side view, (C) is a bottom view, (D) is a YY arrow sectional drawing of (A). It is a detailed view of the lock operation lever 80, (A) is a front view, (B) is a side view, (C) is a bottom view. It is a figure which shows the arrangement | positioning and fixing procedure of a monitor stand. However, the suction cup and the support base are axial cross-sectional views, and the rotating arm is a split-type joint surface and only one split mold is shown. It is a figure which shows the arrangement | positioning and fixing procedure of a monitor stand, (A) shows an unlocked state, (B) shows a locked state. However, the suction cup and the support base are axial cross-sectional views, and the rotating arm is a split-type joint surface and only one split mold is shown. It is a figure which shows the arrangement | positioning and fixing procedure of a monitor stand, and shows the state which mounted the lower side of the monitor on the to-be-sucked surface, and was locked. However, the suction cup and the support base are axial cross-sectional views, and the rotating arm is a split-type joint surface and only one split mold is shown.

Explanation of symbols

10 ... Suction cup, 10a ... Gel layer, 11 ... Tab, 12 ... Flat part, 13 ... Recessed part, 14 ... Short cylindrical part, 15 ... O-ring, 20 ... Working rod, 21 ... Serrated irregularities, 22 ... Engagement hole , 30 ... Support base, 31 ... Flange, 31a ... Concave (conical shape), 31b ... Circular recess, 32 ... Cylindrical part, 33a, 33b ... Bearing part, 34a, 34b ... Long hole, 35 ... Hole, 36 ... partition walls, 37a, 37b ... guide plates, 38a, 38b ... slits, 39a, 39b ... sliding surfaces, 40 ... tightening screws, 40a, 40b ... holes, 42 ... screw heads, 43 ... washers, 44 ... Nut, 45 ... Washers, 46a, 46b ... Ring wall, 50 ... Rotating arm, 50a, 50b ... Split, 51a ... Pin hole, 51b ... Pin, 52a, 52b ... Rib, 53a, 53b ... Recess (Hexagon), 55a, 55b ... serrated irregularities, 56a, 56b ... bearings, 57a, 57b ... holes, 58a, 58b ... annular projections, 59a, 59b ... serrated irregularities, 60 ... bearings, 61 ... Metal cylinder, 62 ... Regular hexagonal cylinder, 70 ... Monitor mounting adapter, 71 ... Bearing, 72 ... Hole, 73a, 73b ... Circular recess 74a, 74b ... serrated irregularities (radial), 75 ... monitor contact part, 76 ... hole, 80 ... lock operation lever, 81a, 81b ... long arm part, 82a, 82b ... hole, 83a, 83b ... short arm part 84a, 84b ... sliding protrusions, 85 ... connecting plate portions, 90 ... shafts, 100 ... monitors, 110 ... surfaces to be adsorbed, S ... spaces.

Claims (6)

A suction cup made of an elastic material, the peripheral area on the suction surface side as a contact surface with respect to the suction surface, and the central area as a concave surface,
One end is erected and fixed at the center of the surface opposite to the suction surface of the suction cup, the other end surface is formed as a serrated uneven surface, and an engaging portion is formed in the middle. A working rod,
A flange portion that is in contact with the peripheral region of the surface opposite to the suction surface of the suction cup and that has a concave surface formed so as to face the central region through a gap, and the operating rod is slidably inserted. A support base in which a cylindrical portion and a bearing portion that rotatably holds one end of a rotation arm described later are integrally configured;
One end is rotatably held by the bearing portion of the support base, and a serrated irregular surface that meshes with the serrated irregular surface of the operating rod is formed along the rotational circumferential direction of the end portion. A rotating arm provided with a monitor mounting portion on the other end side;
A process in which the long arm portion and the short arm portion are connected to the cylindrical portion of the support base in a form in which the long arm portion and the short arm portion are connected in an L shape or V shape, and the long arm portion is tilted toward the flange portion side of the support base. Thus, while the connecting portion of the long arm portion and the short arm portion moves along the sliding surface provided on the flange portion side of the support base, the tip side of the short arm portion engages with the engaging portion of the operating rod. And a lock operating lever for moving the operating rod toward the bearing portion of the support base.
In a state where the long arm portion of the lock operation lever is tilted at a certain angle or more, the operating rod is moved to the bearing portion side of the support base to retract the central area of the suction cup, and the end surface of the operating rod is The serrated irregular surface meshes with the serrated irregular surface of the rotating arm, and the operating rod is moved to the suction cup side by the elastic force generated by the pressure contact between the central portion of the suction cup and the flange portion of the support base. A monitor stand comprising a lock mechanism configured to be energized to apply a rotational torque in a tilting direction to the lock operation lever so as to be locked.   The lock operation lever includes a pair of lever portions in which a long arm portion and a short arm portion having a hole drilled in a distal end side connected in an L shape or a V shape, and the pair of lever portions are supported. A connecting plate portion that connects the long arm portions separated by a distance corresponding to the outer diameter of the cylindrical portion of the base body and is parallel to the outer diameter of the cylindrical portion. And a sliding surface on which a connecting portion of the long arm portion and the short arm portion of the lock operation lever moves to a position corresponding to each of the long holes on the flange portion side. With the engaging portion of the operating rod as a hole, the shaft that penetrates the hole of each short arm portion of the lock operation lever, the long hole of the support base, and the hole of the operating rod is mounted horizontally. The monitor stand according to claim 1, having a structured structure.   The monitor stand according to claim 1, wherein the lock operation lever is provided with a sliding protrusion at a connecting portion between the long arm portion and the short arm portion.   The monitor stand according to claim 1, 2, or 3, wherein an O-ring is fitted around a central portion of the suction cup on which the operating rod is fixed upright.   The rotating arm is a hollow casing configured by joining a pair of split molds divided along the longitudinal direction, and is fastened to a casing portion of the rotating arm that is clamped by a bearing portion of the support base. A metal bearing through which an attaching screw passes is fitted and fixed, and the fitting and fixing portion of the metal bearing in the rotating arm is clamped by the bearing portion of the support base by the fastening screw. The monitor stand according to claim 1, claim 2, claim 3, or claim 4.   The monitor mounting portion of the rotating arm is configured such that a bearing portion is formed at a tip of the rotating arm, and a monitor mounting adapter is mounted on the bearing portion by a mechanism capable of rotating / fixing. The monitor stand according to claim 1, claim 2, claim 3, claim 4, or claim 5.

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