JP2004052943A - Adjuster - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adjuster which allows height and angle adjustment of furniture, electronic equipment or the like and permits suppression of unexpected behavior during height adjustment, wherein a vertical operation mechanism facilitates height and angle adjustments. <P>SOLUTION: The adjuster 10 is provided with an exterior case 18 having a piston accommodating chamber, a leg member 14 having a piston part consisting of the upper end freely slidably inserted into the piston accommodating chamber, a foot part consisting of the lower end and a recessed and projected part 14a disposed in the longitudinal direction of the outer peripheral surface, an elastic member 15 for urging the leg member 14 downward, a stopper member 12 which has a female thread 12f engaged with the recessed and projected part 14a and can be abutted on/disengaged from the leg member 14, an elastic member 13 for biasing the stopper member 12 in the abutting direction to the leg member 14, and an operation lever 11 moving vertically. In the adjuster 10, the stopper member 12 is disengaged from the leg member 14 by pressing the lower end of the operation lever 11 against the stopper member 12, whereby the leg member 14 freely moves with respect to the exterior case 18. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an adjuster device, and more particularly, to a technology related to an adjuster device suitable for adjusting the height and angle of electronic devices and furniture.
[0002]
[Prior art]
2. Description of the Related Art In order to adjust the height and angle of electronic devices and furniture, those provided with legs having a height adjusting function are widely used. For example, in a projector that projects a television image, a video image, or the like, a pair of legs provided on the front side having a height adjustment function is used so that the projection angle can be adjusted. As the leg having the height adjusting function, a screw shaft is screwed into a frame of the projector, and a seat plate fixed to a lower end of the screw shaft is rotated to adjust a screwing amount of the screw shaft with respect to the machine frame. Thus, a projector configured to adjust the inclination angle of the projector is used.
[0003]
Further, as a simple configuration having a height adjusting function, for example, Japanese Utility Model Publication No. 32-4181 discloses a lifting rod having a rubber leg fixed to a lower end, a rod spring for constantly urging the lifting rod upward, An operation lever having a through hole through which a lifting rod is inserted, wherein a rim of the through hole is engaged with an outer surface of the lifting rod to regulate a lifting and lowering of the lifting rod. Door stop provided with an operating lever capable of tilting operation to a release position where the engagement with the outer surface of the lifting lever is released and the lifting rod is allowed to move up and down, and a lever spring that constantly biases the operation lever toward the regulation position side Hardware is described. In this door stop bracket, the lifting rod is depressed downward against the spring force of the rod spring, the lifting rod is lowered, the rubber legs are pressed against the floor surface, the door is stopped, and the operation lever is released. By operating to the position side, the lifting rod is raised by the spring force of the rod spring, and the stop of the door can be released.
[0004]
However, since the height is adjusted according to the screwing amount of the screw shaft as described above, if the adjusting amount is large, it is necessary to rotate the screw shaft many times, which makes the adjustment work complicated. There's a problem. Further, a configuration such as the door stop fitting may be applied to a foot, and by operating an operation lever, the elevating rod may be raised and lowered at a stroke to a desired height position to adjust the inclination angle of the projector. It is possible. However, even in this case, when the operation lever is operated to the release position, the front portion of the projector is supported by the spring force of the rod spring. There is a problem that the front portion jumps up and the front portion of the projector falls if the spring force is too weak. Moreover, since the rod spring tends to expand or contract until its spring force balances with its own weight at the front of the projector, even if an appropriate rod spring is used, the problem of jumping and falling cannot be completely eliminated. . In addition, since the elevating rod moves at high speed by the rod spring, it may be difficult to finely adjust the height. Further, since the gap between the projector and its installation surface is relatively small, there is a problem that the operability of the operation lever is reduced.
[0005]
Therefore, for the purpose of solving the above problems, for example, the inventions described in JP-A-11-248089 and JP-A-11-311397 have been proposed. There is only a slight difference between the two in the shape of the leg members and the operation method. As a representative example, the invention described in JP-A-11-311397 will be described below.
[0006]
Japanese Patent Application Laid-Open No. H11-311397 discloses an outer case having a bottomed receiving hole with an open lower end, a leg member having a piston portion slidably sealed in the receiving hole, the outer case and the piston portion. An orifice for releasing the air working chamber formed to the atmosphere, an elastic member for the leg which constantly urges the leg member downward, and a lock means capable of restricting the forward / backward movement of the leg member, A plurality of regulating uneven portions formed on the outer peripheral surface at regular intervals in the longitudinal direction thereof, and an operating member having a locking uneven portion which is provided to be slidable on the outer case and can be engaged with the regulating uneven portion, There has been proposed a foot with a height adjustment function including a locking means having a locking elastic member that constantly urges the operating member in a direction in which the locking uneven portion engages with the regulating uneven portion.
[0007]
In this leg with a height adjustment function, by pushing the operating member against the urging force of the locking elastic member, the engagement between the locking uneven portion and the regulating uneven portion is released, and the leg member moves. At this time, when the leg member descends due to the urging force of the leg elastic member, outside air gradually flows into the air working chamber through the orifice, and the leg member is biased by the leg elastic member. As a result, the air in the air working chamber is gradually discharged to the outside through the orifice, and the leg member moves up and down at a low speed according to the ventilation resistance of the orifice. As described above, since the air working chamber and the orifice function as a damper for raising and lowering the leg member, furniture and home appliances to which the foot is attached are not likely to have a sudden jump or drop during height adjustment. Preparatory behavior is prevented, and the angle and height can be adjusted smoothly, and the angle and height can be finely adjusted. In addition, by pressing the operating member in the horizontal direction, the engagement between the locking uneven portion and the regulating uneven portion can be released, so that the space for disposing the operating member is narrow in the vertical direction as in a projector or the like. Even in this case, it is possible to sufficiently secure the operability of the operation member.
[0008]
[Problems to be solved by the invention]
The above-mentioned leg with height adjustment function can adjust the amount of protrusion of the leg member without having to rotate many times as in the case of using a screw shaft. The lifting and lowering operability can be improved, and the leg member is mounted in the receiving hole of the outer case slidably and airtightly, and the air working chamber formed by the leg member and the outer case is opened to the atmosphere through the orifice. By adding a damper function to the foot, the speed of movement of the leg members during height adjustment becomes slower, preventing the device with the foot from jumping and dropping quickly, In addition to preventing inadvertent behavior, fine angle adjustment is also possible.
[0009]
However, in the leg with the height adjustment function, the configuration of the operation member for height adjustment is a horizontal push or seesaw type, and for example, a vertical slide mechanism suitable for a thin electronic device or the like is not considered. Instead, further improvement in usability was desired.
[0010]
The present invention has been made in view of the above circumstances, and can easily adjust the height and angle of furniture, electronic devices, and the like, and effectively suppresses careless behavior at the time of height adjustment. It is an object of the present invention to adjust the height and angle of furniture, electronic equipment, and the like easily by a vertical slide mechanism in an adjuster device capable of adjusting height and angle.
[0011]
[Means for Solving the Problems]
The present invention relates to the above-mentioned JP-A-11-248089 and JP-A-11-311397, etc., and is an invention which can be more suitably used for thin electronic devices and the like. The technical means comprises an outer case having a piston accommodating chamber having an open lower end, a piston section comprising an upper end slidably inserted into the piston accommodating chamber, and a foot section comprising a lower end connected to the piston section. And a leg member having an uneven portion formed in the length direction of the outer peripheral surface between the piston portion and the foot portion, and a leg member elastic member for constantly urging the leg member downward. And a stopper member having an uneven portion that engages with the uneven portion of the leg member, and a stopper member capable of coming into contact with and detaching from the leg member, and constantly urging the stopper member in a direction in which the stopper member comes into contact with the leg member. Elastic part for stopper member Having the leg member move up and down with respect to the outer case, adjusting the relative position of the leg member with respect to the outer case, and locking the leg member at the adjusted position with the stopper member. The adjuster device has an operating member that presses the lower end against the stopper member by moving downward, and releases the stopper member from the leg member by pressing the lower end of the operating member against the stopper member. The leg member is made movable with respect to the exterior case.
[0012]
According to this, the height and angle of furniture and electronic devices can be easily adjusted, and careless behavior during height adjustment can be effectively suppressed. Since the height and angle can be adjusted by the sliding mechanism in the direction, the user can easily adjust the height and angle of a thin electronic device such as a projector device.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
The adjuster device of the present invention is suitably used, for example, for adjusting the height and angle of furniture and electronic devices. In particular, the operability of adjusting the height and angle of thin electronic devices such as projector devices is improved. Suitable for improvement. This embodiment relates to a case where the adjuster device of the present invention is applied to a projector device as a typical example of a thin electronic device, and will be described with reference to FIGS.
[0014]
FIG. 1 is a view showing an overview of a projector device with an adjuster device of the present invention attached thereto. In the figure, reference numeral 1 denotes a projector device, and the projector device 1 includes a projection lens 2, an adjuster button 3, a fixed foot 4, It has an adjuster device 10. The adjuster device 10 of the present invention has a leg member 14 and a foot 24. 1A is a side view of the projector device 1 before the adjustment of the projection angle by the adjuster device 10, FIG. 1B is a side view of the projector device 1 during the adjustment of the projection angle by the adjuster device 10, and FIG. FIG. 2 is a side view of the projector device 1 after a projection angle is adjusted by an adjuster device 10.
[0015]
1 (B) and 1 (C), a projection lens 2 for projecting modulated light such as an image onto a screen is provided on the front surface of the projector device 1, and the user expands and contracts the leg member 14 while pressing down the adjuster button 3. Set the projection angle. A foot 24 is provided on the leg member 14, and a fixed foot 4 as a fixed foot is provided at the lower rear end of the projector device 1 to prevent displacement after setting the projection angle, and the projector device 1 is stably fixed. become.
[0016]
FIG. 2 is an exploded view showing an example in which the adjuster device 10 of the present invention is disassembled. The adjuster device 10 includes an operation lever 11, a holding member (hereinafter, referred to as a screw top in this example) 12, a holding spring 13, and a leg. It has a member 14, a leg member spring 15, a spring receiver 16, a sealing 17, an upper case 18, a lower case 19, a guide 20, an upper sleeve 21, a lower sleeve 22, a foot base 23, and a foot 24. The operation lever 11 in the present embodiment has a wedge-shaped tip portion 11a, a lever top surface 11b, and an elliptical hole portion 11c. The screw top 12 is composed of two members, a screw top 12a and a screw top 12b, and has a projection 12c, an inclined recess 12d, a guide pin 12e, and a female thread 12f, respectively. The leg member 14 has an uneven portion 14a, and the upper case 18 has a boss 18a, a lever guide 18b, a screw hole 18c, a guide hole 18d, a screw 18e, a breathing hole 18f, and a screw 18g. In the present embodiment, the case where the holding member 12 is applied to the stopper member will be described as a representative example. However, the stopper member in the present invention is not limited to the present embodiment, and has a structure capable of holding the leg member 14 appropriately. In addition, any form may be used as long as it can be engaged and disengaged from the leg member 14.
[0017]
The guide 20 has a projection 20a and a lever spring 20b. The upper sleeve 21 is composed of two members, a sleeve 21a and a sleeve 21b. The sleeve 21a has a guide hole 21c and a notch 21d. The lower sleeve 22 is composed of two members of a sleeve 22a and a sleeve 22b. The sleeve 22a has a notch 22c.
[0018]
Hereinafter, the assembly of the upper case 18 will be described in detail.
First, the elliptical hole 11c is passed through the two bosses 18a while aligning the wedge-shaped tip 11a of the operation lever 11 with the lever guide 18b of the upper case 18. One of the springs 20b is hung on the protrusion 20a of the guide 20, and the guide 20 is fitted to the two bosses 18a while the other is in contact with the back side of the lever top surface 11b, and the upper case 18 is fixed by screws 18g. In this state, the operation lever 11 can be slid up and down within the range of the difference between the outermost distance between the two bosses 18a and the major axis of the elliptical hole 11c of the operation lever 11. The wedge-shaped tip 11a enters and exits the guide hole 18d.
[0019]
Next, the assembly of the lower case 19 and the assembly of the upper and lower case portions will be described in detail.
First, the lower sleeves 22a and 22b are put on the bottom surface of the lower case 19. Next, the screw pieces 12a and 12b are opposed to each other in the direction shown in FIG. 2, one of the holding springs 13 is hooked on the left and right projection 12c, and the other of the holding springs 13 is brought into contact with the inner wall of the lower case 19. The screw top 12 is mounted on the lower case 19 while being in contact with the lower case 19. The upper sleeves 21a and 21b are placed on the screw top 12 in the lower case 19, and the lower case 19 is completed. The upper case 18 portion and the lower case 19 portion are screwed through four screw holes 18c and fixed with four screws 18e, and are assembled as an operation lever assembly.
[0020]
Next, the configuration of the leg member 14 and the assembly of the adjuster device 10 will be described below.
The leg member 14 has a cylindrical shape, into which a leg member spring 15 and a spring receiver 16 are inserted, and an oval foot base 23 is press-fitted and fixed below the leg member 14. A foot 24 is fitted to the foot base 23. As the material of the foot 24, for example, rubber having a high friction coefficient can be suitably used. Further, there is a groove in the upper part of the leg member 14, and the sealing 17 is fitted in this groove. For the sealing 17, for example, a rubber sealing material can be suitably used.
[0021]
The leg member 14 is inserted into an operation lever assembly composed of an upper case 18 and a lower case 19, and the adjuster device 10 having a damper function as an extendable leg is completed. The tight contact between the inner wall of the operation lever assembly and the ceiling 17 above the leg member 14 allows the leg member 14 of the adjuster device 10 to form a slidable piston portion.
[0022]
The operation of the adjuster device 10 configured as described above will be described below. FIG. 3 is a schematic view showing an example of a state where the adjuster device 10 of the present invention is assembled. First, in a state where the operation lever 11 is not pressed down, the female screw portion 12f is screwed with the uneven portion 14a of the leg member 14 by the urging force of the holding spring 13 in the screw top 12, and the foot 24 is held at a predetermined position. Fixed. At this time, it is assumed that the uneven shape of the female screw portion 12f of the screw top 12 is formed on one of the screw tops 12a and 12b or on both the screw tops 12a and 12b. The uneven shape (the uneven portion 14a) of the leg member 14 is formed in the length direction of the outer peripheral surface between the upper end and the lower end of the leg member 14, and is arranged to be screwed into the uneven shape of the female screw 12f. . At this time, the uneven portion 14a to be formed may be the whole or a part of the outer peripheral surface in the length direction between the upper end and the lower end of the leg member 14.
[0023]
2 and 3, when the lever top surface 11b of the operation lever 11 is pressed down, the wedge-shaped tip portion 11a passes through the guide holes 18d and 21c and hits the inclined recess 12d of the screw top 12. Further, when the lever top surface 11b of the operation lever 11 is pressed down, the wedge-shaped tip portion 11a overcomes the urging force of the holding spring 13 and penetrates deeply into the inclined concave portion 12d, so that the screw pieces 12a and 12b become wedge-shaped. It is pushed and spread in the left and right directions orthogonal to the invasion direction of the tip 11a. A guide pin 12e is provided at the tip of each of the screw top 12a and the screw top 12b, and the screw top 12a and the screw top 12b are moved by the cutouts 21d and 22c of the upper sleeve 21 and the lower sleeve 22, respectively. You will be guided. When the screw top 12a and the screw top 12b are pushed right and left, the screwing between the female screw portion 12f and the leg member 14 (the uneven portion 14a) is released, and the leg member 14 is biased by the leg member spring 15 and the breathing hole 18f. It has a damper function due to the airflow resistance, and is gradually pushed down.
[0024]
In a state in which the threaded engagement between the female thread portion 12f and the leg member 14 (the uneven portion 14a) is released by pressing down the operation lever 11, the foot 24 applies the urging force of the leg member spring 15 and the ventilation of the breathing hole 18f. It is also possible to push in against the resistance, and the adjuster device 10 is arranged at the lower part of the projector device 1 as shown in FIG. 1 and the adjuster button 3 is pushed down, so that the operation lever 11 linked to this is pushed down. As a result, the height and angle of the projector device 1 can be adjusted.
[0025]
ADVANTAGE OF THE INVENTION According to this invention, height and angle adjustment of furniture, electronic equipment, etc. can be easily performed by comprising a vertical slide mechanism in an adjuster device, and also, careless behavior at the time of height adjustment is effectively suppressed. In addition, delicate height and angle adjustments can be performed, and operability in height adjustment and angle adjustment of thin electronic devices and the like can be improved. In addition, by configuring the adjuster device using a member having a simple structure, it is possible to reliably perform height adjustment and angle adjustment with a simple configuration.
[0026]
FIG. 4 is a perspective view showing an example of an integrated screw top according to the present invention. In the figure, reference numeral 25 denotes an integrated screw top, and the integrated screw top 25 has an inclined recess 25a, a guide pin 25b, a female thread 25c, and a hinge. It has a portion 25d. The integrated screw top 25 is formed by connecting the screw top 12a and the screw top 12b with a hinge 25d. The guide pin 25b is connected to the guide pin 12e, the inclined recess 25a is connected to the inclined recess 12d, and the internal thread 25c is connected to the internal thread 12f. Although not shown, a portion corresponding to the left-right projection 12c is also provided, and can be used as it is in place of the above-mentioned screw top 12a and screw top 12b.
[0027]
According to the present invention, since the holding member has an integral structure, it is possible to reduce the number of parts and the number of assembling steps.
[0028]
As described above, the angle adjustment of the projector device 1 equipped with the adjuster device 10 will be described with reference to FIG.
The adjuster button 3 provided on the projector device 1 is a button that presses the lever top surface 11b of the operation lever 11, and is provided one at each of the front sides of both sides of the projector device 1 or one at substantially the front center. . The user installs the projector device 1 at a predetermined position as shown in FIG. Next, when adjusting the projection angle of the projector device 1, as shown in FIG. 1B, the user places a finger other than the thumb of both hands or one hand on the bottom surface of the projector device 1 and puts the thumb on the adjuster, for example. Place on button 3. Next, the user presses down the left and right adjuster buttons 3 with both thumbs, or presses down the adjuster buttons 3 with one thumb, so that the leg member 14 is free to move up and down as described above. While watching the projected image (not shown) on the screen, the front part of the projector device 1 is moved up and down with both hands or one hand, and the thumb is released from the adjuster button 3 at an appropriate projection angle while keeping the right and left balance. Is set.
[0029]
Since the adjuster device 10 of the present invention is configured as described above, the foot 24 is always installed while the front portion of the projector device 1 is moved up and down while pressing the adjuster button 3 (when setting an angle, etc.). The user is in contact with the floor surface or desk surface, and the user can set the projection angle only by operating the adjuster button 3 while watching the screen without worrying about the state of the foot 24 portion.
[0030]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, height and angle adjustment of furniture, electronic equipment, etc. can be easily performed by comprising a vertical slide mechanism in an adjuster device, and also, careless behavior at the time of height adjustment is effectively suppressed. In addition, delicate height and angle adjustments can be performed, and operability in height adjustment and angle adjustment of thin electronic devices and the like can be improved.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overview of a projector device in a state where an adjuster device of the present invention is mounted.
FIG. 2 is an exploded view showing an example in which the adjuster device of the present invention is exploded.
FIG. 3 is a schematic view showing an example of a state where the adjuster device of the present invention is assembled.
FIG. 4 is a perspective view showing an example of an integrated screw top according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Projector apparatus, 2 ... Projection lens, 3 ... Adjuster button, 4 ... Fixed foot, 10 ... Adjuster apparatus, 11 ... Operation lever, 11a ... Wedge-shaped tip part, 11b ... Lever top surface, 11c ... Elliptical hole part, 12 , 25 ... holding member (screw top), 12a, 12b ... screw top, 12c ... projection, 12d, 25a ... inclined recess, 12e, 25b ... guide pin, 12f, 25c ... female screw part, 13 ... holding spring, 14 ... Leg member, 14a ... Uneven part, 15 ... Leg member spring, 16 ... Spring receiver, 17 ... Sealing, 18 ... Upper case, 18a ... Boss, 18b ... Lever guide, 18c ... Screw hole, 18d ... Guide hole, 18e ... screws, 18f ... breathing holes, 18g ... screws, 19 ... lower case, 20 ... guides, 20a ... protrusions, 20b ... lever springs, 21 ... upper sleeves, 21a, 21b Sleeve, 21c ... guide hole, 21d ... notches, 22 ... lower sleeve, 22a, 22b ... sleeve, 22c ... notched section, 23 ... foot base, 24 ... foot, 25 ... integrated screwed, 25d ... hinge portion.

Claims (8)

An outer case having a piston housing chamber whose lower end is open, having a piston part consisting of an upper end part slidably inserted into the piston housing chamber and a foot part consisting of a lower end part connected to the piston part, A leg member having an uneven portion formed in a length direction of an outer peripheral surface between the piston portion and the foot portion; an elastic member for a leg member for constantly urging the leg member downward; and the leg member A stopper member having an uneven portion engaging with the uneven portion, and being capable of coming into contact with and detaching from the leg member, and an elastic member for a stopper member which constantly urges the stopper member in a direction in which the stopper member comes into contact with the leg member Having the leg member move up and down with respect to the exterior case, adjusting the relative position of the leg member with respect to the exterior case, and locking the leg member at the adjusted position with the stopper member. Adjustable adjuster An operating member for pressing a lower end of the operating member against the stopper member by moving the moving member downward, and releasing the stopper member from the leg member by pressing a lower end of the operating member against the stopper member; An adjuster device wherein a member is movable with respect to the outer case. The stopper member is composed of two holding members for holding the leg member, and the two holding members are provided with contact portions that contact the concave and convex portions of the leg member, and at least one of the contact portions. The adjuster device according to claim 1, wherein one of the adjuster devices has an uneven portion that can be engaged with the leg member. The adjuster device according to claim 2, wherein the elastic member for the stopper member constantly urges the holding member having an uneven portion in the contact portion in a direction in which the holding member has an uneven portion. The adjuster device according to claim 2, wherein at least a part of the two holding members is connected. The lower end of the operation member has a wedge shape, and the stopper member has a concave portion having an inclination substantially similar to the inclination of the wedge shape at a position where the lower end of the operation member having the wedge shape abuts. The adjuster device according to any one of claims 1 to 4, wherein The adjuster device according to any one of claims 1 to 5, wherein the operation member includes an operation member elastic member that constantly biases the operation member in a direction that does not abut the stopper member. The adjuster device according to claim 6, wherein the operation member is provided on the outer case so as to be slidable along a length direction of the outer case. The breathing hole for opening a space formed between an upper end portion of the piston accommodating chamber and the piston portion to the atmosphere is provided at an upper end of the outer case. An adjuster device according to item 1.

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