This invention relates to improvements in an instrument, speaker and amplifier lift stand. More particularly, the present stand is a collapsible stand that rigidly supports instruments, speakers and amplifier. The lift stand also functions to elevate a speaker with the collapsible stand. The stand supports all or the majority of the weight of the instrument or speaker in a static position to relieve the performer or technician of the weight of the musical instrument or speaker. The stand can articulate an amplifier to adjust the direction of the sound or access to the controls.
Several products and patents have been. Exemplary examples of patents covering these products are disclosed herein. Musical instrument stands are desirable for supporting various articles and instruments since they provide selective height adjustment and a stable support. They are particularly useful is supporting such things as cameras, video equipment, telescopes, surveying instruments, and musical instruments. Musical instrument stands for brass instruments, however, raise special problems when used on steps or stairs of an auditorium or stadium.
There are several patents that describe various adjustable musical instrument stand devices. Bruneau U.S. Pat. No. 1,517,825 shows a tripod support for a table having adjustable legs.
This invention is an improvement over the inventor's, May, U.S. Pat. No. 5,072,910. The US patent office has issued several musical instrument stands to May that disclose and provide support for musical instruments namely U.S. Pat. Nos. 7,438,266, 7,588,228, 7,703,725 and 7,718,878. It is distinguished over the prior art in general, and these patents in particular by an adjustable musical instrument stand with independently adjustable legs which comprises a longitudinal extensible upright portion of telescoping tubular members, a plurality of collar members slidably mounted on the upright portion which are longitudinally adjustable relative to one another and to the upright portion for selective positioning thereon, and a plurality of movable leg members are operatively connected to upper and lower collar members for selective independent longitudinal positioning and radial extension relative to the upright portion and to one another. One leg of the musical instrument is adjustable in length, a sufficient amount, to permit support on two different stairs or steps of an auditorium or stadium.
Boehm, U.S. Pat. No. 3,570,130 discloses a holding device for surveying instruments which includes a channel-like mounting bracket with a pair of instrument gripping clamps and a pair of adjustable legs thereon which cooperate with the instrument to form a musical instrument type support for supporting the instrument in a reference position.
When the upper leg supporting collar and the corresponding lower collar are moved toward each other on the upright portion, the bottom of the leg connected thereto will be extended radially outward to be positioned an unequal distance from the center of the upright portion relative to the other legs, and the upper leg supporting collar and the corresponding lower collar are moved away from each other, the bottom of the leg connected thereto will be drawn radially inward to be positioned an unequal distance from the center of the upright portion relative to the other legs. The one adjustable leg of the musical instrument allows the stand to be erected on multi-level surfaces.
Various objects, features, aspects, and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, along with the accompanying drawings in which like numerals represent like components.
It is therefore an object of the present stand to provide an adjustable musical instrument stand that has independently adjustable movable legs.
It is another object of this stand to provide an adjustable musical instrument stand that allows for multiple angularities and musical instrument configurations.
Another object of this invention is to provide a stand that has two or more independently adjustable movable legs providing versatility and stability in the support system.
Another object of this stand is to provide an adjustable musical instrument stand that allows for the body of the stand to be oriented in an off-axis position while maintaining the center of gravity in a stable support system.
Another object of the stand is to allow collars that support the legs, to be slidably adjusted past each other to allow for a greater variety of adjustment.
Another object of the stand is to provide an adjustable support leg positioned on the musical instrument stand and under a musical instrument to provide additional support to the musical instrument while it is being played.
Another object of the stand is to provide a spring or gas charged strut within the musical instrument stand that assists in the extension of telescoping members.
Another object of the stand is to provide additional extension legs that can be used in combination with the legs of the musical instrument stand to give greater extension capability for placement of the musical instrument stand on uneven surfaces.
Another object of the stand is for the geometry of the center tube and the legs to be essentially the same to allow for part commonality and interchangeability.
Another object of the stand is to allow the position of the leg brace to be adjustable to allow the angular arc or position of the leg to be adjusted beyond a single fixed fulcrum brace point.
It is another object of this stand is to provide an adjustable musical instrument stand for supporting articles which is simple in construction, light-weight, economical to manufacture, rugged and reliable in use.
It is another object of the present stand to provide an expandable musical instrument stand made from extruded sections where the extruded sections include a dovetail feature that allows the extruded tubular sections to be locked together.
It is another object of this stand to utilize dovetail locking features to engage tubular sections and allow the stand to become longer. The leg section creates both the leg support and the locking mechanism for the additional tubular extension.
It is another object of this stand to allow the overall height of the instrument stand significantly reduced make the stand easier to transport and store, the long center tube support can be split into two or more pieces and assembled using an existing leg clamp to secure the two center tube sections rigidly together.
It is another object of this stand is to provide an adjustable tripod stand that has two or more independently adjustable movable legs providing versatility and stability in the support system.
It is another object of this stand is to provide an adjustable tripod stand that allows for the body of the stand to be oriented in a greater off-axis position while maintaining the center of gravity in a stable support system.
It is another object of the stand is to allow collars that support the legs, to be slidably adjusted past each other to allow for a greater variety of adjustment.
It is another object of the stand to support an amplifier and allows the amplifier to articulate and be locked between approximately 0 degree and 45 degree positions. These positions allow a performer to set the amplifier at the desired angle for optimal sound and access to the amplifier controls.
It is still another object of the stand to utilize an assisted lifting mechanism, such as a spring or gas strut, to make adjusting the height of the playing surface of the musical instrument easier. The assisted lifting mechanism allows for an infinite number of heights that the instrument can be adjusted and the adjustment can be made quickly by a performer. Various lifting mechanisms can be used based upon the required force and the amount of extension that is required.
Various objects, features, aspects, and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, along with the accompanying drawings in which like numerals represent like components.
The sousaphone is placed on the stand where the upper curved tube of the sousaphone 10 rests in the cradle of the arc sector or “V” receivers 60 and 61 that are covered with padding 62 to cushion the sousaphone 10. The padding can be a variety of different materials including but not limited to felt, cloth, rubbers, plastics or elastomeric. The arc padded sectors 60 and 61 are connected to a head 21 with arms 63 and 64. While arc sector or “V” receivers are shown in
The pads 50 and 51 are pivotable on pivot pads 52 and 53 and can slide 54 on a second set of legs 40 and 41 to allow the pads 50 and 51 to be placed at a location that provides protection of the instrument. The pivoting and sliding of the pads 52 and 53 allows for player customization to accommodate placement of the pads 52 and 53.
The first set of legs 30 and 31 are slidably connected to the central tube 20 with two independent dovetail tubular first upper collar slider 32 and first lower collar slider 33. The first upper collar slider 32 is pivotably 35 connected to one end of each leg 30 and 31, while the first lower collar slider 33 is pivotably 35 connected to leg brace(s) 34 that are then slidably 38 and pivotably 35 connected to an opposing end of each leg 30 and 31. A tension screw 36 on each first upper and lower collar slider 32 and 33 secures each slider on the central tube 20. The lower end of each leg 30 and 31 has a foot pad 37 to protect the surface where the stand is placed upon.
The second set of legs 40 and 41 are slidably connected to the central tube 20 with two independent dovetail tubular second upper collar slider 42 and second lower collar slider 43. The second upper collar slider 42 is pivotably 45 connected to one end of each leg 40 and 41, while the second lower collar slider 43 is pivotably 45 connected to leg brace(s) 44 that are then slidably 48 and pivotably 45 connected to an opposing end of each leg 40 and 41 . A tension screw 46 on each first upper and lower collar slider 42 and 43 secures each slider on the central tube 20. The lower end of each leg 40 and 41 has a foot pad 47 to protect the surface where the stand is placed upon.
The collar sliders 32, 33, 38, 42, 43, and 48 are configured with reverse facing dovetail edges having a wrap angle of less than 180 degrees of wrap on the central tube and the legs 30, 31 , 40 and 41 that allows the collar sliders to slide past each other on the central tube 20 and or the legs 30, 31 , 40 and 41. In addition, because both the upper and lower collar sliders are independent, the angle of the leg 32, 33, 42 and 43 and or leg more brace(s) 34 and 44 are adjustable to alter the distance between the foot pads 37, 47 and the central tube 20.
The central tube 20 has an internal extension tube 70 that can be adjusted in extension to raise or lower the height of the arc sector or “V” receiver 60, 61 pads 62. The extension tube 70 can further be removed, as shown in
In
The tubular clamp 80 has a first arc sector or “V” receiver 81 and a second arc sector or “V” receiver 82 that grasps at least partially around the tube 12 of a musical instrument. The first arc sector or “V” receiver 81 pivots on a pivot axis 83 while the second arc sector or “V” receiver 82 pivots on a pivot axis 84 that extends through the body 91 of the tubular clamp 80. The inside edges 93 limits the amount that the arc sector or “V” receivers will open. Each arc sector or “V” receiver 81 and 82 is padded or cushioned 86 to both frictionally grip the instrument tube 12 and to prevent damage to the instrument tube 12. When the instrument tube is pushed into the tubular clap 80 the arc sector or “V” receivers 81 and 82 will pivot until holes 89 engage into pins 88 that will hold the arc sector or “V” receivers 81 and 82 in a closed orientation as shown in
Referring now to
The strut 39 has end caps 53 and 55 that are installed with the tubes 34 and 26. A set screw or stops 51 and 58 retain the end caps 53 and 55 within the tubes 34 and 26. In one embodiment the end caps sit on the screws 51 and 58. In another embodiment the screws 51 and 58 bind the end caps 53 and 55 to prevent the inner tube 34 from being accidentally removed from the outer tube 26. A guide 54 exists in the middle of the strut 39 to reduce axial loading on the strut that could harm the seals of the strut 39. The extension mechanism can be either inserted into the inner tube 34 or in the outer tube 26. A securing means for securing a musical instrument is attached to the end of the upper tube 34. The instrument securing means allows a performer to install a musical instrument such as a drum or other musical instrument onto the stand. Various types of percussion musical instruments are shown in the figures. In this figure the securing means is a saddle 62 where a musical instrument is placed vertically into the securing means 60.
In
The strut can be fixed to the stand, or can be changeable. The clamping apparatus/griping means 69 grips the upper tube to prevent undesirable movement of the upper tube 70 while a performer is performing. The location of the tube 70 is quickly adjustable with the eccentric cam arm 66. A securing means for securing a musical instrument 81 is attached to the end of the upper tube 70. The instrument securing means 81 allows a performer to install a musical instrument 81 such as a drum or other musical instrument onto the stand. In some cases a support brace or bracket 71 is used to reduce the moment arm of the musical instrument on the stand. In the figures a further support arm 71 extends from the brace or bracket 70 to the drums 81 that is mounted.
The inventor of this disclosure has also been awarded U.S. Pat. Nos. 7,438,266, 7,588,228, 7,703,725 and 7,718,878 that may disclose tripod type stands. It is distinguished over the prior art in general, and these patents in particular by an adjustable musical instrument stand with independently adjustable legs 23 which comprises a longitudinal extensible upright portion 26 of telescoping tubular members, a plurality of collar members 69 slidably mounted on the upright portion 26 which are longitudinally adjustable relative to one another and to the upright portion 26 for selective positioning. The lift mechanism further creates additional improvement and user performance features that were not obvious and are novel over the inventors' prior patents.
In
The right arm, sections 112 and 114 are connected 111 on one side while left arm sections 122 and 124 are connected 121 on the opposing side of the rear central front tube 119. The ends of the arms 115 and 125 contact and support the rear of the amplifier 100. The length of the arms are individually adjustable with locking members 113 and 123. The bottom of the amplifier 100 is supported on pads 56 that extend from arms 57 and connector 59 that is supported on the front tube 120. A mechanical lift or extension mechanism is located within the rear central tube 119. The height of the pivoting location 111 and 112 of the left 122/124 and right arm 112/114 sections is essentially fixed, based upon the height of the collar 118. The tube 98 extends from the collar 118 position.
As the lift mechanism lifts the tube 98 the head 110 is also moved along with the front tube that moves the supporting pads 56. As the supporting pads 56 are raised, the position of the pads 56, relative to the fixed position of the collar 118, forces the amplifier 100 to rotate from an initial 0 degree to a final approximately 45 degree position. The amplifier 100 can be stopped at any desired position between 0 and 45 degrees. While 0 and 45 degrees are specifically identified in this disclosure, greater and lesser angles are contemplated. This articulation is shows and described in more detail in other figures shown in this disclosure. The back of the speaker can rest on a rear supporting feature 117 where the speaker is supported on the supporting pads 56 and on the rear supporting feature 117 that can be a pad or cushion that lifts with the front tube 120. The angle of the speaker is altered by changing the position of the legs on the central tube 119.
Thus, specific embodiments of a stand have been disclosed. It should be apparent, however, to those skilled in the art that many more modifications besides those described are possible without departing from the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of the appended claims.
This application is a continuation of U.S. patent application Ser. No. 15/169,147, filed May 31, 2016, which is a continuation of U.S. patent application Ser. No. 14/598,162, filed on Jan. 15, 2015, now U.S. Pat. No. 9,377,158, which claims priority to provisional application 61/927,863 filed on Jan. 15, 2014, the entire contents of which is hereby expressly incorporated by reference herein.
Number | Date | Country | |
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61927863 | Jan 2014 | US |
Number | Date | Country | |
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Parent | 15169147 | May 2016 | US |
Child | 15874394 | US | |
Parent | 14598162 | Jan 2015 | US |
Child | 15169147 | US |