JPS60145490U - Angle adjustment device for support stand - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

FIG. 1 is a perspective view of a conventionally known drum support stand shown in a retracted state, FIG. 1a is a schematic front view showing an example of use of the drum support stand shown in FIG. 1, and FIG. FIG. 3 is an exploded perspective view of one embodiment of the angle adjustment device for a support stand according to the present invention, and FIG. 3 is a side sectional view showing the angle adjustment device shown in FIG. 2 in an assembled state. DESCRIPTION OF SYMBOLS 1...1st support rod, 2...2nd support rod, 3...1st spring, 4...shaft pusher, 5...adjustment lever, 6...bin, 7... Buffer spring, 8... Washer, 9... Tightening member (wing nut), 10... Toothed retaining ring, 11
... 1st toothed washer-like part, 12 ... toothed ring surface,
13... Center hole, 21... Second toothed washer-like portion, 2
2... Toothed ring surface, 23... Center hole, 41...
Projecting end, 42... Projecting end, 51... Operation handle end, 52... Cam surface end, 92... Toothed ring part, 93... Screw hole, 101... Toothed surface part, 102
...Center hole, 103...Key.

Claims (1)

[Claims for Utility Model Registration] 1. A first support rod, a second support rod, and a device connected to the first support rod and the second support rod to adjust the intersecting angle of the first support rod and the second support rod. An angle adjustment device for use in a support stand, the angle adjustment device comprising: an angle adjustment device capable of fixing the angle adjustment device; a ring-shaped first toothed seat-like portion, which is attached to the second support rod and has teeth formed at equal intervals on one side; and one side of the first toothed seat portion facing the surface on which the teeth are formed;
a second toothed seat surface portion having a nung shape provided with teeth having a shape that meshes with the teeth of the toothed seat surface portion; the first toothed seat surface portion; and the second toothed seat surface portion. a coiled first spring disposed between the mutually facing surfaces of the shaped portions and urging them apart; and a first toothed seat portion and a second toothed seat portion, respectively. A shaft pusher that is fitted into the center hole and has both ends protruding to the outside of the first toothed seat portion and the second toothed seat portion, respectively, and one protruding end of the shaft pusher. a tightening member that is attached and restricts the first toothed seat member from coming off from the shaft pusher; and one side of one longitudinal portion is formed in the shape of a cam surface and the other portion is formed in the shape of an operating handle. an elongated member that connects the cam surface to the second
an adjustment lever that is rotatably pivoted to the other protruding end of the shaft pusher while abutting the outside of the toothed seat surface; the adjustment lever is rotated by an operating handle; By changing the relative position between the shaft pusher and the second toothed seat surface portion using the cam surface, the second toothed seat surface portion is moved to the first toothed seat surface portion.
The toothed seat portion can be changed between a fully occlusal state and a separated state, thereby allowing a state in which the first support rod and the second support rod are mutually locked and a normal and reverse state. An angle adjustment device for a support stand characterized by providing a freely rotatable state. 2. Claim 1, characterized in that the teeth of the first toothed seat surface portion and the second toothed seat surface portion are both formed of teeth with only one side inclined. The angle adjustment device described. 3. A portion of the cam surface of the adjustment lever has a shape that allows the first toothed seat surface portion and the second toothed seat surface portion to be kept in a position where only a portion of the tips of the teeth engage with each other. 3. The angle adjusting device according to claim 2, further comprising a buffer spring interposed between the adjusting lever and the second toothed seat surface portion. 4. The angle adjusting device according to claim 1, wherein the tightening member includes a nut, and a male thread is formed at one end of the shaft to engage with the nut. 5. A toothed ring portion centered around a screw hole is formed on one side of the nut, and a toothed retaining ring is provided which has a toothed surface portion that engages with the toothed ring portion and a center hole from which a key is protruded. and a keyway is formed in the threaded end of the shaft pusher, whereby the toothed retaining ring is engaged with the toothed ring portion of the nut when the tightening member is attached to the shaft pusher. The angle adjusting device according to claim 4, wherein the nut is screwed so that the nut is brought into contact with the second toothed washer-like portion and fitted into the shaft-pushing end portion. . 6. The peripheral surface on the outer end side of the center hole of the second toothed washer-like portion is expanded and formed, and the buffer spring is accommodated in the peripheral surface, and the buffer spring is in contact with the cam surface of the adjustment lever. The angle adjusting device according to claim 3 or 5, wherein the second toothed washer-like member is biased.