WO2005062283A1 - ディスプレイ昇降調整装置 - Google Patents
ディスプレイ昇降調整装置 Download PDFInfo
- Publication number
- WO2005062283A1 WO2005062283A1 PCT/JP2004/016083 JP2004016083W WO2005062283A1 WO 2005062283 A1 WO2005062283 A1 WO 2005062283A1 JP 2004016083 W JP2004016083 W JP 2004016083W WO 2005062283 A1 WO2005062283 A1 WO 2005062283A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elevating
- display
- base member
- force
- hoistway
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
- F16M11/105—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2014—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a vertical axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/02—Locking means
- F16M2200/021—Locking means for rotational movement
- F16M2200/022—Locking means for rotational movement by friction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/04—Balancing means
- F16M2200/048—Balancing means for balancing translational movement of the undercarriage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S248/00—Supports
- Y10S248/917—Video display screen support
- Y10S248/919—Adjustably orientable video screen support
- Y10S248/92—Angular and linear video display screen support adjustment
Definitions
- the present invention relates to a lifting / lowering adjusting device.
- a display supporting device used for a personal computer hereinafter, referred to as a personal computer
- a television receiver a supporting device 100 for a liquid crystal monitor as shown in FIG. 12 has been known.
- the support device 100 includes a base portion 101, a support portion 102 erected on the base portion 101, and a lift provided to be movable up and down with respect to the supporting portion 102. It includes a descending portion 103 and a movable portion 104 mounted on the upper portion of the elevating portion 103 via a support shaft 103a so as to be swingable in the direction of arrow Y2 in the figure.
- a coil spring 102a is provided inside the support section 102, and the elevating section 103 is urged in the ascending direction (the direction of the arrow Y1 in the figure) by the coil spring 102a.
- the movable part 104 is provided with a fixture 104a for attaching the display D, and the display D is held by the fixture 104a so as to be rotatable in the arrow Y3 direction in the figure.
- the elevating unit 103 can be slid vertically with respect to the supporting unit 102, and the height of the display D is changed according to the user's preference. be able to.
- the elevating unit 103 is urged in the ascending direction (the direction of the arrow Y1 in the figure) by the coil spring 102a, the operation in the ascending direction of the display D can be smoothly performed with a light operating force (for example, Registered Utility Model No. 3063920, pages 6-7, see FIGS. 1 and 2).
- the conventional support device 100 described above has the following problems. Since the supporting device 100 uses the coil spring 102a as the urging force applying means, the urging force corresponds to the height position of the elevating portion 103 (the compressed state of the spring). For this reason, the operational feeling at the time of the upward adjustment corresponded to the compression state of the spring, and it was impossible to adjust the operational feeling to the user's preference.
- the operation feeling at the time of the elevation adjustment regardless of the height position of the elevation unit 103 becomes constant. For example, when the display D was at a higher position than when it was at a lower position, a larger lifting operation force was required.
- a spiral spring may be used instead of the coil spring 102a as a measure for keeping the operational feeling during the upward adjustment constant.
- a spiral spring has a constant biasing force compared to a coil spring, but the biasing force is still not strictly uniform with respect to the unwinding amount.Also, as the unrolling amount increases, the biasing force increases. growing. For this reason, even if a spiral spring is employed in place of the coil spring 102a, when the elevating portion 103 is at a low position, the amount of unwinding of the spiral spring increases, and the biasing force tends to increase. In this case, too, the operation feeling at the time of the upward adjustment cannot be made constant.
- the present invention has been made in view of a powerful situation. That is, it is an aspect of the present invention to provide a display elevating / lowering adjusting device that can make the operational feeling during the ascent / descent adjustment constant or adjust it as desired.
- a display elevating / lowering adjusting device is provided so as to be able to ascend and descend along a base member and a hoistway provided on the base member, and has a display attached thereto.
- An elevating member, and a spiral spring provided between the base member and the elevating member, for urging the elevating member in the ascending direction with respect to the base member.
- the spiral spring has a winding end portion fixed to the base member, and a winding portion having a front end. It is configured to move up and down along the hoistway by being unwound or unwound following the elevating movement of the elevating member while maintaining the state of contact with the elevating member in the ascending direction.
- the hoistway is provided with a fitting portion which is narrower than the outer diameter of the winding portion and which is fitted in a state where the winding portion is compressed in the radial direction as the lifting member is located at a lower position. Being done.
- the elevating member is provided so as to be able to move up and down along the hoistway provided in the base member, and is urged in the ascending direction with respect to the base member by the spiral spring. Therefore, adjustment of the display in the upward direction can be performed with a light operating force by using the urging force (restoring force) of the spiral spring.
- the spiral spring is configured such that the winding part is unwound or unwound following the elevating movement of the elevating member, and is moved up and down along the elevating path. It is narrower than the outer diameter of the winding part, and there is provided a fitting part in which the winding part is fitted in a state where the winding part is radially compressed as the elevating member is located below! When it is moved down, the winding part moves down following the elevating member, and is fitted into the fitting part provided in the hoistway.
- the fitting portion is narrower than the outer diameter of the winding portion, and the fitting portion is inserted in a state where the winding portion is compressed in the radial direction!
- the attaching portion is in a state in which its peripheral portion is strongly contacted with the fitting portion, and is held with a frictional force proportional to a resistance force due to a radial spring force. That is, the frictional force proportional to the resistance acts in the opposite direction to the urging force of the spiral spring, and as a result, the urging force of the ascending / descending member in the ascending direction is weakened. Therefore, by providing such a fitting portion at a desired position on the hoistway, the operational feeling at the time of the upward adjustment can be adjusted, and the operational feeling according to the user's preference can be obtained. .
- the fitting portion may be formed so that its width becomes narrower as it goes down in the hoistway.
- the insertion portion is oriented in the descending direction of the hoistway.
- the width is reduced, so that the frictional force proportional to the resistance of the winding part inserted into the insertion part becomes stronger as the elevating member is positioned downward.
- the urging force of the spiral spring which increases with the descending movement of the elevating member, can be counteracted by the reverse force due to the frictional force that increases as the elevating member is positioned downward. This makes it possible to make adjustments so that the operability of the camera becomes constant.
- the urging force of the spiral spring is increased as compared with the initial state of unwinding of the spiral spring.
- the force is reduced by the force in the opposite direction due to the frictional force that is increased as a result, and as a result, even near the lower end of the elevating member, the ascent is adjusted with the operating force that does not change from the initial state of unwinding of the spiral spring. Will be able to do.
- the fitting portion may be formed by attaching a space member for forming a fitting portion to the hoistway of the base member.
- the fitting member is formed in the hoistway by attaching the space member for forming the fitting part to the hoistway of the base member. Therefore, the fitting portion can be formed later on the hoistway of the base member, and the operation feeling during the upward adjustment can be made a desired operation feeling.
- the space member may be provided so as to be detachably attached to a hoistway of the base member.
- the space member is provided so as to be detachably attached to the hoistway of the base member. Can be changed to the desired operation feeling, and the original operation feeling can be restored by removing the space member from the hoistway.
- a plurality of types of space members that can form an arbitrary fitting width with respect to the hoistway can be prepared, and an arbitrary space member can be attached from these. This makes it possible to adjust the operational feeling during the upward adjustment according to the user's preference.
- the display elevating and lowering adjustment device is configured as a common device for various displays.
- the following effects can be obtained by preparing a plurality of types of space members according to the product weight of the display to be mounted.
- a display elevating and lowering adjustment device is configured as a common device for various displays.
- the display product weight and the spiral spring are attached. The balance with the power may vary, and the operational feel during the lift adjustment may vary depending on the product weight of the attached display.
- an elevating and lowering adjusting device for a display comprising: a base member; an elevating member provided to be able to ascend and descend along a hoistway provided in the base member, to which the display is attached;
- the lifting member is provided between the base member and the elevating member, and is rewound or unwound following the elevating movement of the elevating member, thereby urging the elevating member in the ascending direction with respect to the base member.
- a spiral spring is provided between the base member and the elevating member to reduce a rising speed of the elevating member when the elevating member is located below.
- the elevating member is provided so as to be able to ascend and descend along an elevating path provided on the base member, and the winding portion is rewound following the elevating movement of the elevating member.
- the base member is urged in the ascending direction by a spiral spring configured to be swung or unwound, so that the adjustment of the display in the ascending direction is performed by using the urging force (restoring force) of the spiral spring. It can be performed with a light operating force.
- the elevating member When the elevating member is located below the base member and the elevating member, the elevating member Since the damper is provided to reduce the ascending speed of the moving member, it is possible to apply a resisting force to the elevating member when the ascending and descending member is adjusted. , The urging force of the spiral spring can be reduced. This can prevent a phenomenon in which the elevating member jumps vigorously when the elevating member is adjusted upward. Further, the operational feeling at the time of the upward adjustment can be adjusted, and the operational feeling according to the user's preference can be obtained.
- FIG. 1 is an exploded perspective view showing a display elevating / lowering adjusting device according to a first embodiment of the present invention.
- FIG. 2 is a front view of a state where a base member and a lifting member are separated.
- FIG. 3 is a horizontal sectional view showing a fitting state of a holder of a base member and a lifting member.
- FIG. 4 (a) is an enlarged perspective view of the state before the spiral spring is stored in the storage portion of the spacer, as viewed obliquely from below, and (b) is a spiral shape in the storage portion of the spacer.
- FIG. 4 is an enlarged perspective view when obliquely downward force showing a state in which a spring is housed;
- FIG. 5 is a perspective view showing the display elevating / lowering adjusting device with the display attached.
- FIG. 6 is a load characteristic diagram of a spiral spring.
- FIG. 7 (a) — (c) is an operation explanatory view.
- FIG. 8 is an exploded perspective view for explaining a direction adjusting device.
- FIG. 9 is a view for explaining a display elevating / lowering adjusting device according to a second embodiment.
- A-1) is a schematic front view of a holder
- (a-2) is (a-1)
- [FIG. 2] is a front view showing a space member for forming the fitting portion shown in FIG. 3
- (b)-(e) is a front view showing an example of a space member for forming the fitting portion.
- FIG. 10 is a front view showing a display elevating / lowering adjusting device according to a third embodiment of the present invention.
- FIG. 11 (a) is an enlarged perspective view (partially cut) of the damper, and (b) is a cross-sectional view taken along line aa of (a).
- FIG. 12 is a side view showing a conventional device for supporting a liquid crystal monitor.
- the display elevation adjustment device 1 of the present embodiment is provided so as to be able to move up and down along a base member 10 and hoistways 13a and 13b provided in a holder 12 of the base member 10. And a swirl provided between the holder 12 of the base member 10 and the elevating member 30 to urge the elevating member 30 in the ascending direction with respect to the base member 10.
- Springs 20 and 20 are provided. The spiral springs 20 and 20 are wound so that the winding portions 20b and 20b are unwound or unwound following the elevating movement of the elevating member 30, and move up and down the elevating paths 13a and 13b of the holder 12.
- the hoistway 13a, 13b has a width smaller than the outer diameter of the winding wire 20b, 20b of the evil winding spring 20, 20, and the winding portion 20b , 20b are provided with fitting portions 40, 40 to be fitted in a state of being compressed in the radial direction. That is, in the display elevating and lowering adjusting device 1, the spiral windings 20, A resisting force F2 acting in the opposite direction to the urging force F1 of 20 can now be applied!
- the base member 10 includes a pedestal 11 and a holder 12 made of metal.
- the pedestal 11 is provided with a circular rotary table 1 la shown by a broken line in FIG. 3, and this rotary table 11a is connected to a bolt 11a as shown in FIG.
- the pedestal 11 can be rotated around the vertical axis by the rotating table 1 la.
- hoistways (vertical grooves) 13a and 13b having a substantially U-shape in plan view (see FIG. 3) for guiding the raising and lowering members 30 are provided. Hold the holder 12 up and down It is provided. At the center of the holder 12, a wide center guide portion 14 protruding from the front side of the holder 12 is provided so as to be sandwiched between the hoistways 13a and 13b. As shown in FIGS. 1 and 2, the center guide portion 14 has a stepped portion 14a, 14b which forms a boundary with the hoistway 13a, 13b.
- the fitting portions 40, 40 are narrower than the outer diameters of the winding portions 20 b, 20 b of the spiral springs 20, 20, and the fitting portions 40, 40 have a downward movement of the lifting member 30. Accordingly, the winding portions 20b, 20b are fitted in a state of being compressed in the radial direction.
- the insertion portions 40, 40 are formed so that the width decreases as the holder 12 moves downward in the downward direction due to the inclination of the step portions 14a, 14b.
- the center guide portion 14 is provided with a vertically long through hole 14c for attaching an attachment member 50 described later.
- the spiral springs 20, 20 use thin plate springs that are closely wound with a fixed curvature, and the winding end portions 20a, 20a are formed on the upper portions of the left and right side walls of the hoistways 13a, 13b, respectively. Locked by locking portions 15 and 15. As a result, the spiral springs 20, 20 are arranged at the upper portion inside the hoistways 13a, 13b as shown in FIG. 2, and follow the downward movement of the hoisting member 30, which will be described later, so that the winding portions 20b, 20b are formed. It descends along the hoistways 13a and 13b so that the outer peripheral portion is unwound in a straight line.
- the urging force of the spiral springs 20, 20 is directed in a direction (ascending direction) for pushing up the elevating member 30 described later. That is, the elevating member 30 is configured to be capable of ascending and descending considering the weight of the display D (see FIG. 5) attached to the elevating member 30.
- the elevating member 30 includes guide portions 31a, 31b inserted into hoistways 13a, 13b provided in the holder 12 of the base member 10, and guide portions 31a, 31b. It has a central part 32 that connects 31b, and is formed by processing a metal plate material by press molding or the like.
- the guide portions 31a and 31b are attached with spacers 33a and 33b having an H shape in plan view (see Fig. 3) which also include synthetic resin material.
- Sussa 33a, 33b is the hoistway 13a, 1 of Honoreda 12. It has a thickness that can be inserted into 3b and slides with an appropriate frictional force.
- the lower portions 34a, 34b of the spacers 33a, 33b are provided with substantially triangular storage portions 35, 35 in a front view in which the winding portions 2 Ob, 20b of the spiral springs 20, 20 are stored and held, respectively. It is provided.
- the storage section 35 will be described with reference to the spacer 33a.
- the storage section 35 includes a top section 35a, a front section 35b, a rear section 35c, and a side section 35d.
- the part 36a and the bottom part 36b are open.
- the spiral spring 20 is housed in the space K formed in the housing part 35, and the unwound spring is shown in FIG. 4 (a) from the bottom 36b.
- the side 35d is drawn out to the side 35d of the side 35d.
- the peripheral portion of the winding portion 20b abuts on the top portion 35a to support the lifting member 30 while applying a biasing force to the lifting member 30 in the upward direction.
- the spring (extended portion) 20a unwound by the spiral spring 20 is provided with a concave portion 33a formed on the side of the spacer 33a (see FIG. 4 (a)).
- the spacer 33b enters the recess 33b) and escapes when the lifting member 30 moves up and down.
- the central portion 32 has a total of four mounting holes 32a for mounting the display D (see FIG. 5) on the upper portion thereof. Further, as shown in FIG. 1, the central portion 32 is provided with a vertically long groove 32b for inserting a projection 51a of a slide stopper 51 of the mounting member 50 described later.
- the mounting member 50 includes a resin slide stop 51 that is mounted from the front side of the elevating member 30, and a resin stud that is disposed between the elevating member 30 and the holder 12.
- a mounting spacer 52, a mounting bolt 53, and a mounting plate 54 are provided.
- Such a mounting member 50 prevents the elevating member 30 from falling out of the holder 12 and also functions to restrict the elevating member 30 from falling forward with respect to the holder 12 and to prevent the elevating member 30 from moving in the left-right direction and rattling.
- the slide stopper 51 is provided with a protrusion 5 la.
- the protrusion 5 la passes through the vertical groove 32 b of the central portion 32 of the elevating member 30, and then passes through the packing spacer 52, and
- the holder 12 has a length that passes through the through hole 14 c of the center guide portion 14 of the holder 12.
- Nod / Kinsusa 52 Is formed with a long hole 52a through which the projection 51a of the slide stopper 51 penetrates.
- Such a display elevation adjustment device 1 is assembled, for example, as follows.
- the honoreda 12 is erected using the back of the pedestal 11 and the honoreda 12 using the bonole lid, lid! Then, the winding end portions 20a, 20a of the spiral springs 20, 20 are engaged with the locking portions 15, 15 of the hoistways 13a, 13b of the holder 12, respectively, and the spiral springs 20, 20 are connected to the hoistways 13a, 13b. It is located at the upper inside position. Next, the spacers 33a and 33b of the elevating member 30 are inserted into the hoistways 13a and 13b of the holder 12, respectively, and the elevating member 30 is pressed down, so that the elevating member 30 is attached to the holder 12.
- winding portions 20b, 20b of the spiral springs 20, 20 are stored and held in the storage portions 35, 35 of the spacers 33a, 33b of the lifting member 30 (see FIG. 4 (b)).
- the winding portions 20b, 20b can move downward following the downward movement of the winding.
- the protrusion 51a of the slide stopper 51 is moved to the elevating member 30. Insert the protrusion 51a into the vertically elongated groove 32b, push down the elevating member 30 until the protrusion 51a penetrates through the through hole 14c of the holder 12 through the packing spacer 52, and insert the protrusion 51a of the slide stopper 51 into the through hole. Insert into 14c. In this state, the bolt 53 is inserted into the slide stopper 51, and the bolt 53 is screwed into the mounting plate 54 arranged on the back side of the holder 12.
- the elevating member 30 can be attached to the holder 12, and the display elevating adjustment device 1 is assembled. Thereafter, the display D (see FIG. 5) is fixed to the mounting holes 32a (see FIGS. 1 and 2) of the elevating member 30 of the display elevating / lowering adjusting device 1 using bolts (not shown).
- the display elevating / lowering adjusting device 1 usually adjusts the tightening force of the bolt 53 of the mounting member 50 so that the height of the elevating member 30 can be freely adjusted. Therefore, the operational feeling at the time of elevating the elevating member 30 can be made lighter or heavier, and furthermore, the elevating member 30 can be fixed to a desired height so as not to be able to elevate.
- the spiral springs 20, 20 have a region R in which the load characteristic at the time of unwinding suddenly increases from the initial weak state.
- the unwinding of the spiral springs 20, 20 (the downward movement of the lifting member 30) is also started when the stroke position force exceeds this region R. That is, as shown in FIG. 7 (c), the spiral springs 20, 20 are in a state where they are slightly moved down even if the elevating member 30 is at the upper end position so that the region R is drawn out in advance. Then, it can be attached to the holder 12 of the base member 10.
- the spiral springs 20, 20 attached to the display elevating / lowering adjusting device 1 have general characteristics, and the load (biasing force) of the spiral springs 20, 20 as shown by a solid line in FIG. After R, it tends to increase gradually. Therefore, when the lifting member 30 is located at the position near the lower end (reference C), at the intermediate position (reference B), and when it is at the position near the upper end (reference A), the load (approx. Factions) are different.
- the winding portions 20b, 20b unwound following the lowering movement of the elevating member 30 It is in a state of being fitted into the fitting portions 40, 40.
- the fitting portions 40, 40 are narrower than the outer diameters of the winding portions 20b, 20b, and are fitted in a state where the winding portions 20b, 20b are compressed in the radial direction.
- the winding portions 20b, 20b fitted to the 40, 40 have strong peripheral portions at the step portions 14a (14b) and the side portions 35d (35d) of the storage portions 35 (35) of the spacers 33a (33b). It will be in the state of contact. Thereby, the winding portions 20b, 20b are held by the fitting portions 40, 40 with a frictional force proportional to the resistance force due to the radial spring force.
- the urging force Fib which is weaker than the normal urging force F1
- the upward adjustment can be performed with substantially the same operating force as the operating force at the stroke position (position near the rising end) indicated by A. That is, even if the stroke position changes, the operating force when trying to raise and lower the elevating member 30 is substantially unchanged.
- FIG. 7 (b) a case will be described in which the lifting member 30 is in the middle of the holder 12 in the height direction and the force is also raised. Also in this case, the spiral portions 20 and 20 of the spiral portions 20b and 20b are in a state of being inserted into the fitting portions 40 and 40, and the biasing force F1 of the spiral springs 20 and 20 is in the opposite direction.
- the resistance force F2a acts, and as a result, the urging force F1 in the upward direction on the lifting member 30 is reduced.
- the width of the fitting portions 40, 40 is wider than in the state where the elevating member 30 is in the vicinity of the descending end as described above, and the frictional force proportional to the resistance is reduced accordingly. It becomes.
- the urging force Fla weaker than the normal urging force F1 is applied to the elevating member 30.
- the stroke position is almost the same as the stroke position denoted by reference symbol C in FIG.
- the force in the opposite direction (F2a, F2b) with respect to the urging force F1 is determined by the winding portions 20b, 20b of the spiral springs 20, 20, and the fitting portions 40, This occurs while being fitted into the forty.
- the operation force when the elevating and lowering member 30 is to be adjusted is almost unchanged over almost the entire stroke. Therefore, the upward adjustment can be performed with a certain operational feeling.
- the display D is attached to the elevating member 30 by using a direction adjusting device capable of holding the display D in a portrait orientation or a landscape orientation (the state shown in FIG. 5).
- a direction adjusting device capable of holding the display D in a portrait orientation or a landscape orientation (the state shown in FIG. 5).
- FIG. 8 is an exploded perspective view for explaining the direction adjusting device H.
- the direction adjusting device H includes a movable portion 60 and a base 70 fixed to a mounting hole 32a of the elevating member 30 of the display elevating and lowering adjusting device 1 by a bolt (not shown).
- the movable portion 60 includes a frame portion 61 and a plate portion 62 which are attached to be overlaid on a back (not shown) of the display D.
- a support cap 63 and a co-rotation restricting member 64 for restricting the rotation angle of the display D are provided between the frame 61 and the plate 62.
- the frame portion 61 is provided with tongue-shaped rotation restricting portions 61a for restricting the rotation angle at intervals of 90 degrees.
- the walls 63a, 63a that serve a role are vertically protruded from the front surface of the support cap 63 that deflects.
- the co-rotation restricting member 64 is inserted into the support cap 63 via a clutch member 64a.
- the co-rotation restricting member 64 is passed through the urging member 73 via the spacer 71 of the base 70 disposed behind and the base body 72, and then is passed through the washer 74, and the pin 75 Is passed. Then, both ends of the pin 75 are locked in notches provided on the back side (not shown) of the base body 72, so that the co-rotation restricting member 64 cannot rotate around its axis, and Since the notch is formed deep in the axial direction of the co-rotation restricting member 64, the co-rotation restricting member 64 is configured to be movable in the axial direction.
- the support cap 63 is pressed by the urging force of the urging member 73 against the ball band portion 62a of the plate portion 62 of the movable portion 60 with an appropriate pressure, and cannot rotate. Since it is locked to the formed co-rotation restricting member 64, it is not rotatable with respect to the base body 72.
- the movable portion 60 is configured to be rotatable within a range of 90 degrees within a range where the rotation restricting portion 61a of the frame portion 61 comes into contact with the wall portions 63a, 63a of the support cap 63.
- the clutch member 64a causes the wall portions 63a, 63a to have a predetermined value or more by the rotation restricting portion 61a of the frame portion 61.
- the engagement between the support cap 63 and the co-rotation restricting member 64 is released so that the blocking state by the walls 63a, 63a is released when the rotating force acts.
- the elevating member 30 is provided so as to be able to elevate along the hoistways 13 a and 13 b provided in the holder 12, and is provided by the spiral springs 20 and 20. Since the holder 12 is biased in the ascending direction, adjustment of the display D in the ascending direction can be performed with a light operating force by using the biasing force of the spiral springs 20, 20.
- the spiral springs 20, 20 are configured such that the winding portions 20b, 20b are unwound or unwound following the elevating movement of the elevating member 30, and move up and down along the hoistways 13a, 13b.
- the hoistways 13a and 13b are narrower than the outer diameters of the winding portions 20b and 20b, and the winding portions 20b and 20b are compressed in the radial direction with the descending movement of the lifting member 30.
- the winding portions 20b, 20b can be fitted into the fitting portions 40, 40 by moving the elevating member 30 down, and To hold the fitting part 40, 40 with a frictional force proportional to the resistance of the spring force it can. That is, the frictional force proportional to this resistance acts on the biasing force Fl of the spiral springs 20, 20 (see FIGS. 7 (a) and 7 (b)) as the opposite force (F2b, F2a). As a result, the urging force F1 in the ascending direction on the elevating member 30 is weakened. Therefore, by providing such fitting portions 40, 40 at desired positions of the hoistways 13a, 13b, it is possible to adjust the operating force at the time of the upward adjustment, and to suit the user's preference. This gives the user a sense of operation.
- the fitting portions 40, 40 are provided to be long in the elevating direction of the hoistways 13a, 13b, the winding portions 20b, 20b are fitted to the fitting portions 40, 40. Can be extended. As a result, it is possible to adjust the operational feeling at the time of ascent adjustment over a long range of the hoistways 13a and 13b.
- the fitting portions 40, 40 are formed so that their widths become narrower as the hoistways 13a, 13b move downward, the fitting portions 40, 40 are fitted into the fitting portions 40, 40.
- the frictional force proportional to the resistance of the wound portions 20b, 20b increases as the lifting member 30 moves downward. That is, the biasing force F1 of the spiral springs 20, 20, which normally increases with the descending movement of the elevating member, is canceled by the force in the opposite direction due to the frictional force that increases with the descending movement of the elevating member 30. Therefore, adjustment can be performed so that the operational feeling during the upward adjustment is constant.
- FIG. 9 is a diagram for explaining a display elevating / lowering adjusting device according to the second embodiment, in which (a-1) is a schematic front view of a holder, and (a-2) is (a-1).
- [FIG. 4] is a front view showing a space member for forming the fitting portion shown in FIG. 5, and (b)-(e) is a front view showing an example of the space member for forming the fitting portion.
- the point that the display elevating / lowering adjusting device of the present embodiment is different from that of the first embodiment is provided with space members 80, 80 for forming the fitting portions 40, 40.
- the space member 80 is provided so as to be detachably attached to the hoistways 13a and 13b of the holder 12.
- the hoistways 13a, 13b have a constant width over the entire vertical direction of the holder 12, and the space members 80, 80 are attached thereto.
- Mounting for A hole 14d is provided in each of the steps 14a and 14b.
- the space members 80 and 80 are formed in a triangular shape having an acute angle at the top, and are detachably fitted to the mounting holes 14d on the side.
- a plurality of fitting projections 80a that can be fitted are provided.
- the fitting protrusions 80a of the space members 80, 80 are fitted into the mounting holes 14d of the hoistways 13a, 13b of the holder 12, respectively.
- the space members 80, 80 can be attached to the hoistways 13a, 13b, and the fitting portions 40, 40 can be formed.
- the space members 80, 80 can be removed from the hoistways 13a, 13b. Yes, it can be returned to its original state.
- the space members 80, 80 are attached, and the fittings 40 are formed in the hoistways 13a, 13b, so that a desired operational feeling can be obtained during the ascent adjustment. . Also, by removing the attached space members 80, 80, the original operation feeling can be restored.
- FIGS. 9 (b)-(e) several types of space members 80b-80e having an arbitrary shape (fitting width for obtaining a desired resistance) are prepared, and Can be exchanged.
- the space members 80b, 80b shown in FIG. 9 (b) are shorter in length (height) than those shown in FIG. 9 (a-2), and accordingly, the fitting portions 40, 40
- the resistance force is concentrated around the lower end of the stroke of the lifting member 30.
- the space members 80c, 80c shown in FIG. 9 (c) have a longer length (height) than those shown in FIG. 9 (a-2), and accordingly, the resistance is increased over the entire stroke. The force is applied, and the operational feeling can be made more constant.
- the space members 80d, 80d shown in FIG. 9 (d) are provided with linear portions 81, 81 in the middle of the inclined portions, and the fitting portions 40, 40 formed by the linear portions 81, 81 , The resistance can be prevented from increasing.
- the space members 80e, 80e shown in FIG. 9 (e) are provided with straight portions 81, 81 at the end of the inclined portion which is the lower end of the stroke, so that the resistance does not increase near the lower end of the stroke. Can be In this way, by replacing the space members 80, 80 with other shapes, It is possible to obtain a feeling of operation according to preference.
- the display elevating / lowering adjusting device of the present embodiment is configured as a device common to various displays D
- a plurality of types of space members are prepared according to the product weight of the display D to be mounted.
- the following operation and effect can be obtained.
- the display lifting / lowering adjustment device is configured as a common device for various displays D
- the display D having a different product weight is installed as it is, the product weight of the display D and the vortex are changed.
- the balance with the biasing force of the springs 20, 20 varies, and the operational feeling at the time of the upward adjustment differs depending on the product weight of the attached display D.
- the display D having the heaviest product weight is used as the reference display D, and the spiral springs 20, 20 and the resisting force having a load corresponding to the display D are used.
- Space members to be provided are provided, and based on the spiral springs 20, 20, each of the space members for providing appropriate resistance when a display D having a light product weight is attached is provided.
- the space member corresponding to the display D is replaced.
- the reference display D is the display D having the heaviest product weight
- the urging force always exceeds the resistance. Therefore, by replacing the space members 80, 80, it is possible to absorb the increased resistance by providing the increased resistance. Therefore, it is not necessary to replace the spiral springs 20, 20 themselves with ones that can obtain different biasing force. As a result, a low-cost, highly versatile display elevation adjustment device can be obtained.
- the space members 80, 80 may be configured to be non-removably fixed to the fitting portions 40, 40 using an adhesive or a fixing screw.
- FIG. 10 is a front view showing a display elevating / lowering adjusting device according to a third embodiment of the present invention
- FIG. 11 (a) is an enlarged perspective view (partially cut) of a damper
- FIG. FIG. The difference between the display elevating adjustment device of the present embodiment and that of the first and second embodiments is that a damper is provided between the base member 10 and the elevating member 30 to reduce the elevating speed of the elevating member 30. 90 and the point that the fitting portions 40 and 40 (see FIG. 2) are not provided in the hoistways 13 a and 13 b of the base member 10.
- the damper 90 includes a cylinder 91 and a piston 92 provided in the cylinder 91 so as to be able to reciprocate.
- the cylinder 91 has a bottomed cylindrical shape with an open upper end and a lower end 91b, and a plurality of vertically elongated slits 91a communicating with the inside and outside of the cylinder 91 are formed in the upper peripheral wall. (See Figure 11 (b)).
- a small-diameter communication hole 91c communicating the inside and outside of the cylinder 91 is formed in the bottom 91b of the cylinder 91.
- a mounting screw 94 is vertically provided.
- the cylinder 91 has a screw hole (not shown) formed on the pedestal 11 of the base member 10 by the mounting screw 94. It is screwed into and attached.
- a piston rod 92a is physically connected to the piston 92, and a mounting portion 93 having a mounting hole 93a is physically provided at an upper end portion of the piston rod 92a.
- Mounting part As shown in FIG. 10, 93 is fixed to the lower central portion 37 of the elevating member 30 with bolts 93b.
- each part are adjusted such that piston 92 is located near the upper end of cylinder 91 when elevating member 30 is at the upper end position (the state shown in FIG. 10).
- the piston 92 descends from the section S1 where the slit 91a is formed to the section S2 where the slit 91a is not formed.
- the lifting member 30 is also moved upward in the lower end position force toward the upper end position, the piston 92 moves up to the section S1 through the section S2.
- the slit 9 la is formed, so that the piston 92 can move up and down smoothly.
- the piston 92 since the slit 9 la is not formed, when the piston 92 is provided in the section S2, an air chamber partitioned by the piston 92 is formed in the cylinder 91. Therefore, in this section S2, the piston 92 is subjected to braking by the air chamber when ascending and descending.
- the braking of the piston 92 in this section S2 is determined by the amount of air flowing through the communication hole 9lc provided in the bottom 9lb of the cylinder 91.
- the size of the communication hole 91c is set so that the ascending (descending) speed of the elevating member 30 is reduced in the section S2.
- the winding portions 20b, 20b of the spiral springs 20, 20 are unwound following the descending movement of the elevating member 30.
- the elevating member 30 is urged in the ascending direction.
- the piston 92 is located in the section S2 of the cylinder 91, and the piston 92 is in a state of being subjected to the braking by the air chamber when ascending and descending.
- a configuration may be adopted in which the communication of air is adjusted by interposing an elastic member such as rubber with the communication hole 91c of the bottom 9 lb of the damper 90.
- the damper 90 is configured such that the lifting speed of the lifting member 30 can be reduced when the lifting member 30 is positioned below. It is not shown in the drawing so that the gas is discharged.
- a valve may be provided in the communication hole 9lc.
- the slit 91a may be formed such that a lower portion and a lower end portion of the slit 91a are tapered (for example, a shape tapering downward).
- the damper when the piston 92 moves from the section S2 to the section Sl and from the section SI to the section S2, as shown in FIG. 90 braking force can be continuously variable, realizing a smoother operation feeling
- the display elevating and lowering adjustment devices include the inclination of the stepped portions 14a and 14b forming the fitting portions 40 and the inclined partial force of the space members 80 and 80.
- Bay A curved or corrugated shape may be used.
- the fitting portions 40, 40 may be formed partially with respect to the hoistways 13a, 13b.
- the spiral springs 20, 20 of the display elevating and lowering adjustment device according to each embodiment may adopt those formed so that the thickness and the plate width have different dimensions according to the unwinding amount.
- the spiral springs 20, 20 may be wound with different curvatures.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112004002499T DE112004002499T5 (de) | 2003-12-18 | 2004-10-29 | Verstellvorrichtung zur Anhebung eines Displays |
US10/582,142 US7722003B2 (en) | 2003-12-18 | 2004-10-29 | Display elevation adjusting apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-420391 | 2003-12-18 | ||
JP2003420391A JP4412990B2 (ja) | 2003-12-18 | 2003-12-18 | ディスプレイ昇降調整装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005062283A1 true WO2005062283A1 (ja) | 2005-07-07 |
WO2005062283A8 WO2005062283A8 (ja) | 2008-02-14 |
Family
ID=34708695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/016083 WO2005062283A1 (ja) | 2003-12-18 | 2004-10-29 | ディスプレイ昇降調整装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7722003B2 (ja) |
JP (1) | JP4412990B2 (ja) |
DE (1) | DE112004002499T5 (ja) |
WO (1) | WO2005062283A1 (ja) |
Cited By (1)
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Also Published As
Publication number | Publication date |
---|---|
DE112004002499T5 (de) | 2006-10-26 |
JP4412990B2 (ja) | 2010-02-10 |
WO2005062283A8 (ja) | 2008-02-14 |
US20070102600A1 (en) | 2007-05-10 |
US7722003B2 (en) | 2010-05-25 |
JP2005178963A (ja) | 2005-07-07 |
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