JP3185983U - Lifting support frame - Google Patents

Abstract

The present invention provides an elevating support frame that can easily adjust the height of a position of a posting device, has a long moving distance, and can be stopped at an arbitrary position instead of a stepped type.
A base 20 and a pulling mechanism 30 and a fastener moving mechanism 40 provided on the base are provided. The traction mechanism has two ropes 34A and 34B provided on the traction board 33, and the two ropes and the fastener moving mechanism are pivotally connected. The traction board moves the fastener moving mechanism up and down along the base when turning, and a spiral part is projected on the rear side. A rope groove is provided on the periphery of the spiral portion, and the rope groove forms a spiral wire similar to a spindle shape, and a pulling rope 35 is provided inside the rope groove. One end of the traction rope is fixed to the traction board, and the extension spring 36 is pivotally connected to the other end to support the fastener moving mechanism and the posting device by the reaction force of the extension spring, and at the same time, is similar to a weight. Moves in the spiral rope groove.
[Selection] Figure 2

Description

The present invention relates to an elevating support frame, and more particularly, to an elevating support frame that helps adjust the height of the posting device, increases a moving distance, and can stop at an arbitrary position instead of a stepped type.

Conventionally, when installing a display device such as a monitor, a whiteboard, a blackboard, and other flat electronic devices, the display device is accommodated in a storage box, or the display device is attached by a hanging arm or a support arm. It has achieved stability and convenience. However, the storage box cannot adjust the viewing position by operating the vertical movement of the posting device, and the hanging arm and the support arm require a larger space for the vertical adjustment of the height. Alternatively, it is inconvenient in use and operation to attach the posting device with a hanging arm or a supporting arm.

In view of the above, the present inventors have devised an elevating support frame. Please refer to FIG. In the elevating support frame, a first rotating disk 11 and a second rotating disk 12 are provided coaxially on the fixed portion 10, and a first rope 13 is provided on the periphery of the first rotating disk 11. One end of the first rope 13 is fixed to the first turntable 11, and the other end is pivotally connected to the frame 14. When the first turntable 11 turns, the frame 14 simultaneously moves up and down. A second rope 15 is provided on the periphery of the second rotating disk 12, one end of the second rope 15 is fixed to the first rotating disk 11, and the other end is pivotally connected to the spring 16. The other end of the spring 16 is pivoted to the fixed portion 10. With the structure described above, the first rope 13 and the frame 14 are pivotally connected, and the first turntable 11 turns to move the frame 14 up and down. At the same time, the second rope 15 is pivotally connected to the spring 16, and the second turntable 12 turns to pull and move the spring 16, whereby the frame 14 and the display device can be supported by the reaction force of the spring 16. .

Since the first rope 13 and the second rope 15 of the above-described lifting support frame are fixed to the frame 14, the height of the posting device can be adjusted and it can be stopped at an arbitrary position. The vertical movement distance of 14 is restricted by the lengths of the first rope 13 and the second rope 15. In addition, since the first rope 13 and the second rope 15 are fixed to the first turntable 11, the first turntable 11 and the second turntable 12 are blocked by the second rope 15 at the time of turning. However, only three quarters of the rotation is possible, and the vertical movement distance of the frame 14 is limited. In addition, since the spring 16 supports the frame 14 and the posting device by the reaction force generated from the extension of the second rope 15, the momentary reaction force of the spring 16 is excessive (or excessively small) when the frame 14 and the posting device are moved. ) And the frame 14 and the bulletin board suddenly rise (or suddenly drop), and thus have a defect of inconvenience in operation and use.

In view of the above-mentioned defects, the present invention provides an elevating support frame that is easy to adjust the height of a posting device, has a long moving distance, and can stop at an arbitrary position instead of a stepped type. With the goal.

In order to achieve the above-described object, the liftable support frame of the present invention includes a base, and a traction mechanism and a fastener moving mechanism provided on the base. The traction mechanism has two ropes provided on the traction board, and the two ropes and the fastener moving mechanism are pivotally connected. The traction board moves the fastener moving mechanism up and down along the base while turning, and a spiral part is projected on the rear side. A rope groove is provided at the periphery of the spiral portion, and the rope groove forms a spiral wire similar to a spindle shape, and a tow rope is provided inside the rope groove. One end of the traction rope is fixed to the traction board, and an extension spring is pivotally connected to the other end. Also, by using the reaction force of the extension spring, the fastener moving mechanism and the display device are supported. At the same time, it moves in a rope groove of a spiral like a spindle.

It is a perspective assembly view of a conventional lifting support frame. It is a perspective view of the present invention. It is a front view of the present invention. It is a perspective view of the tow board of this invention. It is a side view of the tow board of this invention. It is the front view of this invention, and the schematic which showed the downward movement of the fastener moving mechanism and the posting apparatus. It is the rear view of this invention, and the schematic which showed a mode that the tow rope approached toward the axial center of a towing board according to turning of a towing board. It is the rear view of this invention, and the schematic which showed a mode that the tow rope approached toward the axial center of a towing board according to turning of a towing board. It is the front view of this invention, and the schematic which showed the upward movement of the fastener moving mechanism and the bulletin board. It is the rear view of this invention, and the schematic which showed a mode that the towing rope left | separated from the axial center of a towing board according to turning of a towing board. It is the rear view of this invention, and the schematic which showed a mode that the towing rope left | separated from the axial center of a towing board according to turning of a towing board. It is the perspective view which showed a mode that the pulling mechanism of this invention was covered with the shielding board. It is the front view of this invention, and the schematic which showed a mode that the stopper was provided in the standing pillar.

The technical means and structure for achieving the object of the present invention will be described below with reference to the embodiments of FIGS.

Please refer to FIG. The elevating support frame according to the embodiment includes a base 20, a pulling mechanism 30, and a fastener moving mechanism 40. The base 20 (see also FIG. 3) includes a base bottom 21 and two uprights 22 provided on the base bottom 21, and several base wheels 23 are provided at the bottom of the base bottom 21. be able to. The traction mechanism 30 (refer to FIGS. 3, 4, and 5) is fixed to the two vertical pillars 22, and includes a fixed portion 31 and two idle gears 32 </ b> A and 32 </ b> B provided below the fixed portion 31. And a traction board 33 pivotally mounted on the fixed portion 31. The traction disk 33 has a first groove 331 and a second groove 332 formed on the periphery thereof, and a spiral part 333 is provided on the other side, and the height of the spiral part 333 extends from the outside to the inside along the path. It gradually gets higher. Further, a rope groove 334 is provided at the periphery of the spiral part 333, and the rope groove 334 forms a concave tank of a spiral similar to a cone shape along the spiral part 333. A first rope 34 </ b> A, a second rope 34 </ b> B, and a tow rope 35 are fixed to the towing board 33. The first rope 34 </ b> A and the second rope 34 </ b> B are turned downward by being provided in the first groove path 331, the second groove path 332, and the idle gears 32 </ b> A and 32 </ b> B in the traction board 33, respectively. The other ends of the first rope 34 </ b> A and the second rope 34 </ b> B are pivotally connected to the fastener moving mechanism 40. In addition, the traction rope 35 is installed in the rope groove 334 of the spiral portion 333 on the rear side of the traction board 33, and the other end is pivotally connected to the extension spring 36. The other end of the extension spring 36 is pivoted on the base 20.

In response to the above, the first rope 34A, the second rope 34B, and the pivoting parts 341, 342 are provided at one end of the pivoting portion of the fastener moving mechanism 40, so that the first rope 34A, the second rope 34B, The fastener moving mechanism 40 can be easily pivoted.

In response to the above, the extension spring 36 is pivotally connected to the base 20 by the adjusting screw 37 to adjust the tolerance of the extension spring 36.

In response to the above, the extension spring 36 can adjust the load capacity of the extension spring 36 by configuring two springs having different shapes by connecting two springs having different spring constants in series.

In view of the above, in the embodiment, it is desirable that the fixed portion 31 is provided with the guide gear 38 in parallel, the guide gear 38 is provided below the traction board 33, and the guide gear 38 guides the traction rope 35.

The fastener moving mechanism 40 (see also FIG. 3) has a movable portion 41, and the movable portion 41 is drilled in the two upright pillars 22 in the base 20 by two perforations (not shown). Thereby, the movable part 41 moves up and down along the two standing pillars 22. The movable portion 41 is pivotally connected to the first rope 34 </ b> A and the second rope 34 </ b> B in the traction mechanism 30. When the movable portion 41 moves up and down along the two vertical pillars 22, the first rope 34 </ b> A and the second rope 34 </ b> B move in conjunction with each other, whereby the traction board 33 turns. A bulletin board 50 can be attached to the front end of the movable portion 41.

Please refer to FIG. With the structure described above, the first rope 34 </ b> A and the second rope 34 </ b> B provided on the traction board 33 are pivotally connected to the fastener moving mechanism 40, and the traction rope 35 provided on the swirl 333 of the traction board 33. The extension spring 36 is pivoted, and the fastener moving mechanism 40 and the posting device 50 are supported by the reaction force of the extension spring 36, whereby an equilibrium state can be formed. Please refer to FIG. When the posting device 50 is to be moved downward, the first rope 34A and the second rope 34B are pulled and moved downward by operating the fastener moving mechanism 40 and the posting device 50 to move downward. The traction board 33 turns counterclockwise by the first rope 34A and the second rope 34B. At the same time, the spiral portion 333 of the traction board 33 rewinds the traction rope 35 and the extension spring 36 is moved by the traction rope 35 to extend. After the posting device 50 is moved downward to a predetermined height, the worker immediately stops the downward operation of the fastener moving mechanism 40 and the posting device 50. Thereby, the tow board 33 is not pulled by the first rope 34A and the second rope 34B, and the turning is stopped. Further, since the fastener moving mechanism 40 and the posting device 50 and the extension spring 36 form an equilibrium state by the reaction force after the extension spring 36 is stretched, the fastener moving mechanism 40 and the posting device 50 move downward. It can be stopped and stopped at any predetermined height. At the same time, the tow rope 35 provided on the spiral portion 333 is wound along the rope groove 334 and approaches the axial center of the tow board 33 as the tow board 33 turns (see FIGS. 7 and 8). See). In addition, since the radius of curvature of the rope groove 334 provided in the spiral part 333 is smaller than the radius of the first groove path 331 and the second groove path 332 provided in the traction board 33, the rope groove 334 exits as the traction board 33 turns. The first rope 31 </ b> A and the second rope 31 </ b> B that come are longer than the tow rope 35 that is wound up by turning the tow board 33. Thereby, while the moving distance of the tow rope 35 can be shortened, the length by which the extension spring 36 is pulled can be reduced.

Please refer to FIG. When the posting device 50 is to be moved upward, the first rope 34A and the second rope 34B are moved upward by operating the fastener moving mechanism 40 and the posting device 50 to move upward. 33 turns clockwise to wind up the first rope 34A and the second rope 34B. At the same time, the spiral portion 333 in the traction board 33 releases the traction rope 35, and the extension spring 36 loses the force to be extended and returns to the original position. After moving the posting device 50 to a predetermined height, the worker immediately stops the upward operation of the fastener moving mechanism 40 and the posting device 50. Thereby, the traction board 33 is not moved by the first rope 34A and the second rope 34B, and the turning is stopped. Further, since the fastener moving mechanism 40 and the posting device 50 and the extension spring 36 form an equilibrium state due to the reaction force of the extension spring 36, the fastener moving mechanism 40 and the posting device 50 are not lowered, and any predetermined predetermined Can stop at the height of At the same time, the tow rope 35 provided on the spiral portion 333 is released along the rope groove 334 and is separated from the axis of the tow board 33 as the tow board 33 turns (see FIGS. 10 and 11). ). The first rope 31 </ b> A and the second rope 31 </ b> B that are wound by turning the traction board 33 are longer than the traction rope 35 that is released by turning the traction board 33.

Please refer to FIG. In response to the above, in the embodiment, the traction mechanism 30 is covered with the shielding plate 60 so that the idle gears 32A and 32B, the traction disk 33, the first rope 34A and the second rope 34B, the traction rope 35, It is desirable that the extension spring 36, the adjustment screw 37, and the guide gear 38 are covered and not exposed to the outside.

Please refer to FIG. In view of the above, in the embodiment, at least one stopper 24 is provided on each of the two standing pillars 22, and it is desirable that the stopper 24 restricts the moving path of the movable part 41 by blocking the movable part 41.

As shown in the above embodiments and drawings, the present invention has the following advantages.
(1) In the present invention, the traction rope 35 in the traction extension spring 36 is provided in a rope groove 334 provided on the rear side of the traction board 33. The rope groove 334 is provided at the periphery of the spiral portion 333 and forms a spiral line similar to a spindle shape. Further, since the radius of curvature of the rope groove 334 is smaller than the radius of the first groove path 331 and the second groove path 332, the circumference of the rope groove 334 is larger than the circumference of the first groove path 331 and the second groove path 332. Get smaller. Therefore, when the traction board 33 is turned, the moving distance of the traction rope 35 is smaller than the moving distance of the first rope 34A and the second rope 34B, so that the length that the extension spring 36 is pulled is reduced, and the reaction thereof. While the force is reduced, it is possible to avoid a sudden rise (or a sudden drop) when the fastener moving mechanism 40 and the posting device 50 are moved up and down.
(2) In the present invention, the rope groove 334 in which the tow rope 35 is provided exhibits a spiral line similar to a spindle shape. When the posting device 50 is in a low position, the tow rope 35 follows the turning of the tow board 33 and approaches the axis of the tow board 33 along the path of the rope groove 334 (see FIG. 8). When the posting device 50 is at a high position, the traction rope 35 follows the turning of the traction board 33 and moves away from the axis of the traction board 33 along the path of the rope groove 334 (see FIG. 8). Therefore, the distance between the traction rope 35 and the traction disk 33 is changed according to the winding or discharging operation by the traction disk 35. Based on the Pythagorean theorem, the stretched length of the extension spring 36 is reduced, and the reaction force is reduced to form an equilibrium state of the force. ) Can be avoided.
(3) In the present invention, the height of the spiral portion 333 provided on the traction board 33 gradually increases from the outside to the inside along the path. Thereby, the rope groove 334 provided in the periphery of the spiral part 333 presents a spiral line similar to a weight. When the traction board 33 turns, the traction rope 35 moves to the outside of the traction board 33 according to the route of the rope groove 334, thereby interfering with the pivot end of the traction rope 35 with the traction board 33 during rolling. It can be avoided. As a result, the number of turning turns of the traction board 33 can be increased, and the vertical movement distance of the fastener moving mechanism 40 and the posting device 50 can be increased.
(4) In the present invention, the extension spring 36 is pulled by using a rope groove 334 that exhibits a conical spiral provided on the rear side of the traction board 33 in addition to a relatively short length. The length that is stretched by the rope 35 can be reduced, and the swinging motion that occurs after being stretched can be reduced. As a result, the stability of the extension spring 36 can be improved, and the stability of the fastener moving mechanism 40 and the posting device during vertical movement can be improved.
(5) The present invention can quickly adjust the height at which the posting device 50 is positioned according to the user's demand. Moreover, while providing high convenience, the posting apparatus 50 can be quickly moved upward after use, and operation by an outsider can be avoided. At the same time, by supporting the extension spring 36, the posting device 50 can be prevented from falling and the safety in use can be improved.

DESCRIPTION OF SYMBOLS 10 Fixed part 11 1st turntable 12 2nd turntable 13 1st rope 14 Frame 15 2nd rope 16 Spring 20 Base 21 Base bottom 22 Standing pillar 23 Base wheel 24 Stopper 30 Pulling mechanism 31 Fixed part 32A Play gear 32B Play gear 33 Tractor 331 First groove 332 Second groove 333 Spiral part 334 Rope groove 34A First rope 34B Second rope 341 Pivoting part 342 Pivoting part 35 Tensioning rope 36 Extension spring 37 Adjustment screw 38 Guide gear 40 Fastening movable Mechanism 41 Movable part 50 Posting device 60 Shield plate

Claims (8)

A lifting support frame comprising a base, a traction mechanism, and a fastener moving mechanism,
The foundation consists of a foundation bottom and two standing pillars provided on the foundation bottom,
The traction mechanism is fixed to the two standing pillars, and includes a fixed portion, two idle gears provided on the lower side of the fixed portion, and a traction disk pivoted on the fixed portion,
The traction disk has a first groove and a second groove formed on the periphery thereof, and a spiral portion is provided on the other side.
The spiral part gradually increases in height from the outside to the inside along the path, and a rope groove is provided on the periphery thereof,
The rope groove forms a concave groove of a spiral line similar to a cone shape along the spiral part,
The tow board is further provided with a first rope, a second rope, and a tow rope,
The first rope and the second rope are provided in the first groove and the second groove on the traction disc, respectively, and are turned downward by being provided on the idle gear, and the other end is movable. Pivot with the mechanism,
The traction rope is installed in the rope groove of the spiral portion provided on the traction board, and the other end is pivotally connected to the extension spring,
The other end of the extension spring is pivoted on the base,
The fastener moving mechanism has a movable part,
The movable part is drilled in two standing pillars in the base by two perforations so that the movable part can be moved up and down in two standing pillars, and the movable part is attached to the first rope and the second rope of the traction mechanism. It is pivoted with the pivotal part provided, and a bulletin board is attached to the front end.
A lifting support frame characterized in that, by the above-described structure, the height at which the posting device is positioned can be easily adjusted, has a long moving distance, and stops at an arbitrary position instead of a stepped type. The elevating support frame according to claim 1, wherein several base wheels are provided at a bottom of the base of the base. The elevating support frame according to claim 1, wherein a margin of the extension spring is adjusted by adjusting a screw pivoted on a base. The elevating support frame according to claim 1, wherein the extension spring forms a spring having a different shape by connecting two springs having different spring constants in series. A pivot component is provided at one end of the pivot portion of the first rope / second rope and the fastener moving mechanism,
The elevating support frame according to claim 1, wherein the first rope / second rope and the fastener moving mechanism are pivoted by the pivot part. The fixed portion is further provided with a guide gear,
The elevating support frame according to claim 1, wherein the guide gear is provided below the traction board to guide a traction rope. The elevating support frame according to claim 1, wherein the pulling mechanism is covered with a shielding plate. The elevating support frame according to claim 1, wherein at least one stopper is provided on each of the two upright columns.

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