JP4139153B2 - Adjuster device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an adjuster device, and more particularly, to a technology relating to an adjuster device suitable for adjusting the height and angle of electronic equipment, furniture, and the like.
[0002]
[Prior art]
In electronic devices and furniture, in order to adjust the height and angle, those provided with legs having a height adjusting function are widely put into practical use. For example, a projector that projects a television image, a video image, or the like is configured so that a projection angle can be adjusted by using a pair of legs provided on the front side having a height adjustment function. As the leg having the height adjusting function, the screw shaft is screwed into the machine frame of the projector, and the seat plate fixed to the lower end of the screw shaft is rotated to adjust the screwing amount of the screw shaft with respect to the machine frame. Thus, a projector that can adjust the tilt angle of the projector is used.
[0003]
In addition, as a simple configuration having a height adjustment function, for example, Japanese Utility Model Publication No. 32-4181 discloses a lifting rod with a rubber leg fixed to the lower end, and a rod spring that constantly biases the lifting rod upward, A control lever having a through-hole through which the lifting / lowering rod is inserted, where the edge of the through-hole engages with the outer surface of the lifting / lowering rod and restricts the lifting / lowering of the lifting / lowering rod, and the edge of the through-hole and the lifting / lowering rod Door stop provided with an operation lever that can be tilted to a release position where the engagement with the outer surface of the door is released and the raising and lowering of the elevating rod is allowed, and a lever spring that constantly biases the operation lever toward the restriction position side The bracket is described. In this door stop bracket, the elevator rod is stepped down against the spring force of the rod spring, the elevator rod is lowered and the rubber legs are pressed against the floor, the door is stopped, and the operation lever is released. By operating to the position side, the elevating rod is raised by the spring force of the rod spring so that the stop of the door can be released.
[0004]
However, since the height is adjusted in accordance with the screwing amount of the screw shaft in this way, if the adjustment amount is large, it is necessary to rotate the screw shaft many times, and the adjustment work becomes complicated. There's a problem. In addition, a configuration such as the door stop bracket may be applied to the foot so that the tilt angle of the projector can be adjusted by moving the lifting lever at a stroke to a desired height position by operating the operation lever. Is possible. However, even in this case, when the operation lever is operated to the release position, the front part of the projector is supported by the spring force of the eaves spring. If the front part jumps up and the spring force is too weak, there is a problem that the front part of the projector falls. In addition, since the spring spring tries to extend or contract until the spring force balances with the weight of the front part of the projector, even if an appropriate spring is used, the problem of jumping or falling cannot be completely solved. . Further, since the elevating rod moves at a high speed by the rod spring, it may be difficult to perform fine height adjustment. 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 lowered.
[0005]
Therefore, for the purpose of solving the above problems, for example, inventions described in Japanese Patent Laid-Open Nos. 11-248089 and 11-311397 have been proposed. In both cases, there is only a slight difference in the shape of the leg member and the operation method. As a representative example, the invention described in JP-A-11-311397 will be described below.
[0006]
In JP-A-11-311397, an exterior case having a bottomed accommodation hole whose lower end is opened, a leg member having a piston portion that is airtightly slidable in the accommodation hole, the exterior case and the piston portion, An orifice for opening the air working chamber formed in the atmosphere to the atmosphere, an elastic member for the leg that constantly urges the leg member downward, and a locking means capable of regulating the forward and backward movement of the leg member, the leg member A plurality of restriction irregularities formed on the outer circumferential surface at regular intervals in the length direction, and an operation member having a latching irregularity that is provided on the outer case so as to be slidable and engageable with the restriction irregularities. There has been proposed a foot with a height adjusting function including a lock means having a locking elastic member that constantly biases the operating member in a direction in which the engaging uneven portion engages with the restricting uneven portion.
[0007]
In this leg with height adjustment function, the engagement between the engaging uneven portion and the restricting uneven portion is released by pushing the operating member against the biasing force of the elastic member for locking, and the leg member moves. However, if the leg member is lowered by the biasing force of the leg elastic member at this time, outside air gradually flows into the air working chamber via the orifice, and the leg member is biased by the leg elastic member. If it rises against this, the air in the air working chamber is gradually discharged to the outside through the orifice, so that the leg member moves up and down at a low speed according to the ventilation resistance of the orifice. In this way, the air working chamber and the orifice function as dampers for the up and down movement of the leg members. Therefore, in furniture and home appliances with these feet attached, there is no risk of sudden jumping or falling when adjusting the height. Prepared behavior is prevented, the angle and height can be adjusted smoothly, and subtle angle and height adjustment is possible. In addition, since the engagement between the engaging uneven portion and the restricting uneven portion can be released by pushing the operating member in the horizontal direction, the space for disposing the operating member is narrow in the vertical direction as in a projector or the like. Even in this case, the operability of the operation member can be sufficiently ensured.
[0008]
[Problems to be solved by the invention]
The above-mentioned legs with height adjustment function can adjust the protruding amount of the leg member without rotating the operation many times as in the case of using a screw shaft. The leg member can be slidably and airtightly mounted in the housing hole of the outer case, and the air working chamber formed by the leg member and the outer case is opened to the atmosphere via the orifice. By adding a damper function to the foot, the movement speed of the leg member when adjusting the height is reduced, and the device with the foot attached is prevented from jumping up and down rapidly. Inadvertent behavior can be prevented, and fine angle adjustment is also possible.
[0009]
However, the above-mentioned legs with height adjusting function have a horizontal push or seesaw system for the height adjusting operation member. For example, a vertical sliding mechanism suitable for thin electronic devices is not considered. Therefore, 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, etc., and can effectively suppress inadvertent behavior during height adjustment, In an adjuster device capable of adjusting the height and angle, the height and angle of furniture and electronic equipment can be easily adjusted by a vertical sliding mechanism.
[0011]
[Means for Solving the Problems]
The present invention relates to the above-mentioned JP-A-11-248089, JP-A-11-311397, and the like, and is an invention that can be used more suitably for thin electronic devices and the like, in order to achieve the above object. The technical means includes an exterior case having a piston housing chamber whose lower end is opened, a piston portion comprising an upper end portion slidably inserted into the piston housing chamber, and a foot portion comprising a lower end portion connected to the piston portion. And a leg member in which an uneven part is formed in the length direction of the outer peripheral surface between the piston part and the foot part, and an elastic member for a leg member that constantly urges the leg member downward And a stopper member that has an uneven portion that engages with the uneven portion of the leg member, and that can be brought into contact with and removed from the leg member, and constantly urges the stopper member in a direction in which the leg member comes into contact with the leg member. Elastic part for stopper member The leg member is moved up and down with respect to the exterior case, the relative position of the leg member with respect to the exterior case is adjusted, and the leg member is locked at the adjusted position by the stopper member. The adjuster device has an operation member that presses the lower end against the stopper member by moving downward, and the stopper member is separated from the leg member by pressing the lower end of the operation member against the stopper member. The leg member is movable with respect to the exterior case.
[0012]
This makes it possible to easily adjust the height and angle of furniture and electronic equipment, while effectively suppressing inadvertent behavior during height adjustment and adjusting the height and angle of the adjuster device. 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]
DETAILED DESCRIPTION OF THE INVENTION
The adjuster device of the present invention is preferably used for adjusting the height and angle of, for example, furniture and electronic equipment, and in particular, has operability such as height and angle adjustment in thin electronic equipment such as a projector device. Suitable for improvement. In the present embodiment, a case where the adjuster device of the present invention is applied to a projector device as a representative example of a thin electronic device 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. In FIG. 1, reference numeral 1 denotes a projector device, which includes a projection lens 2, an adjuster button 3, a fixed foot 4, An adjuster device 10 is provided. 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 apparatus 1 before adjusting the projection angle by the adjuster apparatus 10, FIG. 1B is a side view of the projector apparatus 1 during adjustment of the projection angle by the adjuster apparatus 10, and FIG. FIG. 2 is a side view of the projector device 1 after adjusting the projection angle by the adjuster device 10.
[0015]
1B and 1C, a projection lens 2 for projecting modulated light such as an image onto the screen is provided on the front surface of the projector device 1, and the user extends and contracts the leg member 14 while pressing down the adjuster button 3. Set the projection angle. This leg member 14 is provided with a foot 24 and a fixed foot 4 which is a fixed foot at the rear lower end of the projector device 1 to prevent deviation after setting the projection angle, and the projector device 1 is stably fixed. become.
[0016]
FIG. 2 is an exploded view showing an example of an exploded view of the adjuster device 10 of the present invention. The adjuster device 10 includes an operation lever 11, a holding member (hereinafter referred to as a screw piece) 12, a holding spring 13, and legs. 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 are provided. The operation lever 11 in this embodiment has a wedge-shaped tip portion 11a, a lever top surface 11b, and an elliptic hole portion 11c. The screw piece 12 is composed of two members, a screw piece 12a and a screw piece 12b, and has a protruding portion 12c, an inclined recess 12d, a guide pin 12e, and a female screw portion 12f. 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 sandwiching member 12 is applied to the stopper member will be described as a representative example, but the stopper member in the present invention is not limited to the present embodiment, and has a structure that can hold the leg member 14 appropriately. And what kind of form may be sufficient as long as it can engage / disengage from the leg member 14.
[0017]
Further, the guide 20 has a protrusion 20a and a lever spring 20b. The upper sleeve 21 includes two members, a sleeve 21a and a sleeve 21b. The sleeve 21a includes a guide hole 21c and a notch 21d. The lower sleeve 22 includes two members, 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 portion 11c is passed through the two bosses 18a while aligning the wedge-shaped tip portion 11a of the operation lever 11 with the lever guide 18b of the upper case 18. The upper case 18 is formed by engaging one of the springs 20b on the protrusion 20a of the guide 20 and fitting the guide 20 to the two bosses 18a while applying the other to the back side of the lever top surface 11b and fixing with screws 18g. In this state, the operation lever 11 can slide up and down within the range of the difference between the outermost distance of the two bosses 18a and the long diameter of the elliptical hole portion 11c of the operation lever 11. The wedge-shaped tip portion 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 parts will be described in detail.
First, the lower sleeves 22 a and 22 b are inserted into the bottom surface of the lower case 19. Next, the screw pieces 12 a and 12 b are made to face each other in the direction shown in FIG. 2, one of the holding springs 13 is hung on the left and right protrusion 12 c, and the other holding spring 13 is brought into contact with the inner wall of the lower case 19. The screw piece 12 is attached to the lower case 19 while making contact. Further, the upper sleeves 21a and 21b are placed on the screw piece 12 in the lower case 19 to complete the lower case 19 portion. The upper case 18 part and the lower case 19 part are screwed with four screws 18e through the screw holes 18c, and assembled as an operation lever assembly.
[0020]
Next, the structure 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, in which a leg member spring 15 and a spring receiver 16 are inserted, and an oval foot base 23 is press-fitted and fixed to the lower part of 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. Furthermore, there is a groove in the upper part of the leg member 14, and a sealing 17 is fitted into this groove. For the sealing 17, for example, a rubber seal material or the like can be suitably used.
[0021]
The leg member 14 is inserted into an operation lever part 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. When the inner wall of the operation lever unit assembly and the sealing 17 on the upper part of the leg member 14 are in close contact with each other, the leg member 14 of the adjuster device 10 constitutes a slidable piston part.
[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 in which the adjuster device 10 of the present invention is assembled. First, in a state where the operation lever 11 is not pushed down, in the screw piece 12, the female screw portion 12f is screwed with the concavo-convex portion 14a of the leg member 14 by the urging force of the holding spring 13, and the foot 24 is in a predetermined position. It is fixed. At this time, it is assumed that the concave and convex shape of the female screw portion 12f of the screw piece 12 is formed in one of the screw pieces 12a and 12b or both of the screw pieces 12a and 12b. Further, the uneven shape (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 so as to be screwed into the uneven shape of the female screw 12f. . At this time, the concavo-convex portion 14 a to be formed may be the entire or part of the length direction of the outer peripheral surface between the upper end and the lower end of the leg member 14.
[0023]
2 and 3, the wedge-shaped tip 11a passes through the guide holes 18d and 21c by pressing down the lever top surface 11b of the operation lever 11, and hits the inclined recess 12d of the screw piece 12. Further, by pushing down the lever top surface 11b of the operating lever 11, the wedge-shaped tip portion 11a overcomes the urging force of the holding spring 13 and enters deeply into the inclined recess 12d, and the screw piece 12a and the screw piece 12b are wedge-shaped. It spreads in the left and right direction perpendicular to the intrusion direction of the tip 11a. A guide pin 12e is provided at the top and bottom of each of the screw top 12a and the screw top 12b. The movement of the screw top 12a and the screw top 12b is caused by the cutout portion 21d and the cutout portion 22c of the upper sleeve 21 and the lower sleeve 22. Will be guided. When the screw piece 12a and the screw piece 12b are expanded to the left and right, the screwing of the female screw portion 12f and the leg member 14 (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 downward.
[0024]
In addition, in a state where the screwing of the female screw portion 12f and the leg member 14 (uneven portion 14a) is released by pushing down the operation lever 11, the foot 24 is biased by the leg member spring 15 and the ventilation hole 18f is ventilated. It is possible to push in against the resistance, and the adjuster device 10 is arranged in 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. Thus, height adjustment and angle adjustment of the projector device 1 can be performed.
[0025]
According to the present invention, the adjuster device is configured with a vertical slide mechanism, which makes it easy to adjust the height and angle of furniture and electronic equipment, and effectively suppresses inadvertent behavior during height adjustment. Subtle height and angle adjustments are possible, and in particular, the operability during height adjustment and angle adjustments of thin electronic devices and the like can be improved. In addition, by configuring the adjuster device using a simple structure member, it is possible to perform reliable height adjustment and angle adjustment with a simple configuration.
[0026]
FIG. 4 is a perspective view showing an example of an integrated screw piece according to the present invention, in which 25 is an integrated screw piece, and the integrated screw piece 25 includes an inclined recess 25a, a guide pin 25b, a female screw portion 25c, a hinge. It has a portion 25d. The integrated screw piece 25 is formed by connecting the above-described screw piece 12a and the screw piece 12b with a hinge portion 25d. The guide pin 25b is connected to the guide pin 12e, the inclined concave portion 25a is connected to the inclined concave portion 12d, and the female screw portion 25c is connected to the female screw portion 12f. Although not shown, a portion corresponding to the left-right direction projection 12c is also provided, and can be used as it is in place of the screw piece 12a and the screw piece 12b.
[0027]
According to the present invention, it is possible to reduce the number of parts and the number of assembling steps by making the holding member an integral structure.
[0028]
As described above, the angle adjustment of the projector device 1 on which the adjuster device 10 is mounted will be described based on FIG. 1 described above.
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 the front of each side surface of the projector device 1, or one at the front center. . As shown in FIG. 1A, the user installs the projector apparatus 1 at a predetermined position. Next, when adjusting the projection angle of the projector apparatus 1, as shown in FIG. 1B, the user hangs a finger other than the thumb of both hands or one hand on the bottom surface of the projector apparatus 1 and adjusts the thumb. Place on button 3. Next, the user depresses the left and right adjuster buttons 3 with the thumbs of both hands, or depresses the adjuster button 3 with the thumbs of one hand, so that the vertical movement of the leg member 14 becomes free as described above. While watching the projected image on the screen (not shown), move the front part of the projector device 1 up and down with both hands or one hand, and take the thumb away from the adjuster button 3 at an appropriate projection angle while balancing left and right. Will be 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 the adjuster button 3 is pressed down (for example, during angle setting). The user can set the projection angle only by operating the adjuster button 3 while looking at the screen without worrying about the state of the foot 24 portion.
[0030]
【The invention's effect】
According to the present invention, the adjuster device is configured with a vertical slide mechanism, which makes it easy to adjust the height and angle of furniture and electronic equipment, and effectively suppresses inadvertent behavior during height adjustment. Subtle height and angle adjustments are possible, and in particular, the operability during height adjustment and angle adjustments 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 apparatus with an adjuster device of the present invention attached thereto.
FIG. 2 is an exploded view showing an example in which the adjuster device of the present invention is disassembled.
FIG. 3 is a schematic view showing an example of an assembled state of the adjuster device of the present invention.
FIG. 4 is a perspective view showing an example of an integrated screw piece 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 ... Nipping member (screw piece), 12a, 12b ... screw piece, 12c ... projection, 12d, 25a ... inclined recess, 12e, 25b ... guide pin, 12f, 25c ... female screw portion, 13 ... spring for holding, 14 ... Leg member, 14a ... Uneven portion, 15 ... Spring for leg member, 16 ... Spring receiver, 17 ... Sealing, 18 ... Upper case, 18a ... Boss, 18b ... Lever guide, 18c ... Screw hole, 18d ... Guide hole, 18e ... Screw, 18f ... Breathing hole, 18g ... Screw, 19 ... Lower case, 20 ... Guide, 20a ... Projection, 20b ... Spring for lever, 21 ... Upper sleeve, 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 exterior case having a piston housing chamber whose lower end is opened, a piston portion comprising an upper end portion slidably inserted into the piston housing chamber, and a foot portion comprising a lower end portion connected to the piston portion, And a leg member having an uneven part formed in the length direction of the outer peripheral surface between the piston part and the foot part, an elastic member for a leg member that constantly urges the leg member downward, and the leg member And a stopper member that can be brought into contact with and removed from the leg member, and an elastic member for the stopper member that constantly urges the stopper member in a direction to come into contact with the leg member. The leg member is moved up and down with respect to the exterior case, the relative position of the leg member with respect to the exterior case is adjusted, and the leg member is locked at the adjusted position by the stopper member. Adjuster The lower end of the operating member is pressed against the stopper member by moving the lower end against the stopper member, and the stopper member is separated from the leg member by pressing the lower end of the operating member against the stopper member. An adjuster device characterized in that a member is movable with respect to the exterior case.   The stopper member includes two holding members that hold the leg member, and the two holding members are provided with contact portions that contact the uneven portions of the leg member, respectively, and at least of the corresponding contact portions. The adjuster device according to claim 1, wherein one has an uneven portion engageable with the leg member.   The adjuster device according to claim 2, wherein the elastic member for the stopper member constantly urges a holding member having a concavo-convex portion at the contact portion in a direction to engage with the leg member.   The adjuster device according to claim 2 or 3, 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 having the wedge shape of the operation member abuts. The adjuster device according to claim 3 , wherein   6. The adjuster device according to claim 1, wherein the operation member includes an operation member elastic member that constantly urges the operation member in a direction in which the operation member does not contact 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.   8. The breathing hole for opening the space formed between the upper end portion of the piston housing chamber and the piston portion to the atmosphere at the upper end of the exterior case. The adjuster device described in 1.

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