CN210226288U

CN210226288U - Pruning machine

Info

Publication number: CN210226288U
Application number: CN201920938115.3U
Authority: CN
Inventors: Xianchao Yu; 于显超; Junguang Lu; 卢俊光; Cheng Lu; 芦成; Ye Xu; 徐叶
Original assignee: Ningbo Anglin Intelligent Equipment Co ltd
Current assignee: Ningbo Anglin Intelligent Equipment Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-03
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a pruning machine, including the hedge trimmer, still include: a base; the cantilever rods are sequentially hinged to each other and comprise first connecting ends and second connecting ends, the first connecting ends are arranged end to end, and the first connecting ends are hinged to the base; the first telescopic device is connected between one cantilever rod and the base and used for driving the cantilever rod to rotate around a hinge point of the cantilever rod and the base; when the number of the first telescopic devices is at least two, the rest at least one first telescopic device is connected between the two adjacent cantilever rods and used for driving one of the two adjacent cantilever rods to rotate around a point hinged with the other cantilever rod; the hedge trimmer can be pivotally connected to the second connecting end, and the hedge trimmer rotates by taking the span between the hedge trimmer and the second connecting end as a radius. The pruning machine is simple in structure, convenient to operate and control, high in reliability, good in pruning effect, high in pruning efficiency, capable of greatly saving manpower and reducing pruning cost.

Description

Pruning machine

Technical Field

The utility model relates to a garden machine equipment field especially relates to a trimming machine.

Background

Plant trimming means is an instrument that is used for gardens pruning, in order to satisfy the urban afforestation demand, can plant a large amount of plants in urban afforestation area, and these vegetation need be pruned it in order to improve its sight and aesthetic property in certain time, especially prune into cylindrical structure to some plants, among the prior art, often prune through artifical manually operation hedge trimmer, work efficiency is low like this, and pruning effect is not good, wastes time and energy.

Disclosure of Invention

The utility model discloses aim at solving one of the problem that above-mentioned prior art exists, provide a trimming machine, this trimming machine simple structure, control the convenience, the reliability is high, prune effectually, prune efficiently, use manpower sparingly and reduce the pruning cost greatly.

In order to achieve the above object, the utility model provides a trimming machine, including the hedge trimmer, still include: a base; the cantilever rods are sequentially hinged to each other and comprise first connecting ends and second connecting ends, the first connecting ends are arranged end to end, and the first connecting ends are hinged to the base; the first telescopic device is connected between one cantilever rod and the base and used for driving the cantilever rod to rotate around a hinge point of the cantilever rod and the base; when the number of the first telescopic devices is at least two, the rest at least one first telescopic device is connected between the two adjacent cantilever rods and used for driving one of the two adjacent cantilever rods to rotate around the other hinged point; the hedge trimmer is pivotally connected to the second connecting end, and the hedge trimmer rotates by taking the span between the hedge trimmer and the second connecting end as a radius.

In the technical scheme, when the pruning machine is used, each first telescopic device is controlled to perform telescopic action through adjustment, so that the cantilever rod is rotationally adjusted, the second connecting end is suspended at the upper end of a plant to be pruned, the hedge trimmer is suspended at one side of the plant to be pruned, and the hedge trimmer is started and rotates around a span which is away from the second connecting end and serves as a radius, so that the purpose of pruning the plant is achieved; the pruning machine is simple in structure, convenient to operate and control, high in reliability, good in pruning effect, high in pruning efficiency, capable of greatly saving manpower and reducing pruning cost.

In addition, according to the utility model discloses a trimming machine can also have following technical characteristics:

the control assembly is arranged along the extending direction of the at least two cantilever rods and used for supporting the at least two cantilever rods when the at least one first telescopic device drives the at least two cantilever rods.

Further, the manipulation assembly comprises: the connecting rod part is arranged along the first connecting end of the at least two cantilever rods, each connecting rod part is parallel to and equal to the corresponding cantilever rod, and one end of each connecting rod part is hinged with the base; the support is hinged between two adjacent connecting rod parts or hinged between the other end of each connecting rod part and the cantilever rod provided with the second connecting end, and the support is connected with the connecting rod parts, so that the connecting rod parts, the cantilever rods parallel to the connecting rod parts and the support define a parallelogram together.

Preferably, an adjusting mechanism is further arranged between the second connecting end and the hedge trimmer to adjust the length of the span.

Preferably, the adjusting mechanism comprises a second telescopic device, one end of the second telescopic device is fixedly connected with the hedge trimmer, and the other end of the second telescopic device is fixedly connected with the second connecting end.

Preferably, the base comprises a base body and a sliding plate slidably disposed on the base body, the sliding plate is slidable along a first direction of the base, and the first connection ends of the at least two cantilever rods are hinged on the sliding plate.

Preferably, the base further comprises a third telescopic device, one end of the third telescopic device is connected with the base body, and the other end of the third telescopic device is connected with the sliding plate.

Further, the second connecting end is connected with a driving device, and a driving shaft of the driving device is suitable for being fixedly connected with the hedge trimmer.

Preferably, the positioning device further comprises a support positioning disc which is configured to be fixedly connected to a driving shaft of the driving device, and a geometric central axis of the support positioning disc is coincident with a geometric central line of the driving shaft.

Preferably, the device further comprises a camera which is fixedly connected to the upper end of the supporting and positioning plate through a suspension rod support.

According to the utility model discloses a trimming machine, its additional technical feature still has following technological effect: by arranging the control assembly, the hedge trimmer can be always kept in a vertical position, so that the hedge trimmer can be conveniently trimmed and controlled; the sliding plate can enable the hedge trimmer to move along the first direction, and the control flexibility of the hedge trimmer is improved.

Drawings

FIG. 1 is a front view of the trimmer;

FIG. 2 is a schematic view of the structure of the trimmer in one of its orientations;

FIG. 3 is a schematic view of the alternative orientation of the trimmer;

fig. 4 is a line schematic of the trimmer according to the present invention.

In the figure, a trimmer 100; a base 10; a base body 11; the first support beam 111; a slideway 1111; a second support beam 112; a slide plate 12; a third telescopic device 1A; a cantilever bar 20; a first connection end 21; a second connection end 22; a first telescopic device 30; a steering assembly 40; a link portion 41; a bracket 42; an adjustment mechanism 50; a second telescoping device 51; a drive device 60; a support puck 70; a camera 80; a suspension rod 81; a hedge trimmer 90; a first direction F; a second direction S; the span D.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the invention as defined by the claims. It includes various specific details to assist in this understanding, but these details should be construed as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that changes and modifications may be made to the various embodiments described herein without departing from the scope of the present invention, which is defined by the following claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims.

Throughout the description and claims of this specification, the words "comprise" and variations of the words, for example "comprising" and "comprises", mean "including but not limited to", and are not intended to (and do not) exclude other components, integers or steps.

Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

According to the utility model discloses a trimming machine, as shown in fig. 1-3, including hedge trimmer 90, still include: a base 10, at least two cantilever bars 20 hinged in sequence and at least one first telescopic means 30.

A base 10; the base 10 serves as a support base for the trimmer 100 for supporting other relevant components, such as the boom 20, the first telescopic device 30, etc.

At least two cantilever rods 20 sequentially hinged to each other and including a first connecting end 21 and a second connecting end 22 arranged end to end, wherein the first connecting end 21 is configured to be hinged to the base 10; that is, the cantilever rods 20 are hinged to each other, and the free ends are named as a first connecting end 21 and a second connecting end 22, respectively, wherein the first connecting end 21 is hinged to the base 10. In one embodiment of the present invention, the number of the cantilever bars 20 is three.

At least one first telescopic device 30, wherein one first telescopic device 30 is connected between one cantilever rod 20 and the base 10, and is used for driving the cantilever rod 20 to rotate around a hinge point of the cantilever rod 20 and the base 10; when the number of the first telescopic devices 30 is at least two, the remaining at least one first telescopic device 30 is connected between two adjacent cantilever rods 20 to drive one of the two adjacent cantilever rods 20 to rotate around the other hinge point; specifically, the first telescopic device 30 includes a cylinder and a piston rod that can be telescoped in the cylinder, for the first telescopic device 30 connecting the cantilever rod 20 and the base 10, for example, the cylinder is hinged with the base 10, the piston rod is hinged with the cantilever rod 20, and the rotation of the cantilever rod 20 connected with the base 10 around its hinge with the base 10 can be realized by the telescopic movement of the piston rod in the cylinder; similarly, the connection between two adjacent cantilever rods 20 is similar, and is not described in detail here.

The hedge trimmer 90 is pivotally connected to the second connecting end 22, and the hedge trimmer 90 rotates around the span D from the second connecting end 22, that is, the hedge trimmer 90 rotates around the span D between the hedge trimmer 90 and the second connecting end 22, so as to trim the plants to be trimmed into a cylindrical structure.

It can be understood that, when the trimmer 100 is used, the first telescopic devices 30 are adjusted and controlled to perform telescopic action, so that the cantilever rod 20 performs relative rotation adjustment, the second connecting end 22 is suspended at the upper end of a plant to be trimmed, the hedge trimmer 90 is suspended at one side of the plant to be trimmed, and the hedge trimmer 90 is started and rotated around a span D from the second connecting end 22 as a radius to achieve the purpose of trimming the plant; the pruning machine 100 is simple in structure, convenient to operate and control, high in reliability, good in pruning effect, high in pruning efficiency, capable of greatly saving manpower and reducing pruning cost.

The trimmer 100 further comprises a controller, wherein the first telescopic devices 30 are electrically connected with the controller, and the controller controls each first telescopic device 30 to perform telescopic action, so that each cantilever rod 20 performs cooperative action, and the cantilever rods 20 can be stretched to a predetermined target; the control of the cantilever bar 20 can be facilitated by the provision of a controller.

Further, a steering assembly 40 is further included, arranged along the extending direction of the at least two boom rods 20, for supporting the boom rods 20 when the at least one first telescoping device 30 drives the at least two boom rods 20, specifically, the steering assembly 40 includes: at least one link portion 41, where the at least one link portion 41 is disposed along the first connecting end 21 of the at least two cantilever rods 20, and each link portion 41 is parallel and equal to its corresponding cantilever rod 20, and one end of each link portion is hinged to the base 10; a bracket 42 configured to be hinged between two adjacent link portions 41 or between the other end of each link portion 41 and the cantilever bar 20 provided with the second connecting end 22, wherein the bracket 42 is connected to the link portion 41, so that the link portion 41, the cantilever bar 20 parallel to the link portion and the bracket 42 together define a parallelogram; specifically, a bracket 42 may be fixed on the base 10, and the bracket 42 may facilitate the hinge connection of the link portion 41, but is not limited herein and may also be a support rod; more specifically, the link portion 41 is disposed parallel to the two adjacent cantilever rods 20 through the bracket 42 disposed between the two adjacent cantilever rods 20, such that when the cantilever rods 20 rotate, the link portion 41 rotates synchronously therewith and keeps parallel, that is, during the rotation of the cantilever rods 20, the link portion 41 and the two brackets 42 connected thereto and forming a parallelogram also rotate synchronously, and represent a parallelogram which changes from moment to moment, such a structure can achieve a supporting effect on the cantilever rods 20, especially for the cantilever rods 20 of the second connecting end 22, the hedge trimmer 100 can be always kept at a vertical position, and since it is connected to the hedge trimmer 90, in order to improve the regularity of trimming plants during trimming, the level of the cantilever rods 20 provided with the second connecting end 22 is kept as much as possible, and this purpose can be achieved by the operation and control assembly 40. Preferably, the support 42 is a triangular structure. The quantity of cantilever pole 20 is one more than the quantity of connecting rod portion 41, in the utility model discloses an embodiment, the quantity of cantilever pole 20 is 3, and the quantity of connecting rod portion 41 is 2, and connecting rod portion 41 is arranged in proper order by first link end 21 respectively with its corresponding cantilever pole 20 parallel arrangement, and connects through the support 42 of triangle-shaped structure between adjacent connecting rod portion 41, connects through support 42 between connecting rod portion 41 and cantilever pole 20.

Taking fig. 1-3 as an example to illustrate one embodiment of the present invention, when the trimmer 100 is in operation, the first telescoping device 30 hinged to the base 10 is telescoped, so as to drive the cantilever rod 20 hinged to the base 10 to rotate, thereby changing the extension length and the support height of the trimmer 100; the first telescopic device 30 connected between two adjacent cantilever rods 20 drives one cantilever rod 20 to rotate around the point of hinging with the other cantilever rod 20, so as to further change the extension length and the supporting height of the trimmer 100, and the control assembly 40 plays a role of supporting in the process; the position adjustment of the hedge trimmer 90 on the trimmer 100 is accomplished by the telescopic driving of the two first telescopic devices 30, so as to adjust the upper end of the plant to be trimmed.

To explain the working principle of the operation assembly 40 more specifically, as shown in fig. 4, the line schematic diagram of the trimmer 100 according to the present invention is shown, in the present invention, the starting ends (the ends hinged to the base 10), the terminals and the middle connecting portions of the two connecting rods 41 are respectively provided with a bracket 42, the connecting rods 41 are hinged to the base 10, so that an included angle D is formed between one side of the connecting rod 41 and the cantilever rod 20 and the horizontal plane of the base 10 as a fixed value, and since the bracket 41, the cantilever rod 20 and the bracket 42 together form a parallelogram, the included angle C between one side of the bracket 42 of the middle connecting portion close to the base 10 and the horizontal line is equal to the included angle D; the included angle A defined by two sides of the bracket 42 of the middle connecting part is a fixed value, so that the included angle B between one side of the bracket 42 of the middle connecting part far away from the base 10 and the horizontal line can be pushed out to be a fixed value; in order to keep the second connection end 22 horizontal all the time, the angle E between the edge of the terminal bracket 42 connected to the cantilever bar 20 and the link portion 41 and the cantilever bar 20 provided with the second connection end 22 is equal to the angle B.

Preferably, an adjusting mechanism 50 is further provided between the second connecting end 22 and the hedge trimmer 90 to adjust the length of the span D; in particular, the adjusting mechanism 50 comprises a second telescopic device 51, one end of which is fixedly connected to the hedge trimmer 90, and the other end of which is adapted to be fixedly connected to the second connecting end 22. That is to say, the piston rod of the second telescopic device 51 is fixedly connected to the second connecting end 22, and the cylinder body of the second telescopic device 51 is fixedly connected to the hedge trimmer 90, so that the adjustment of the length of the span D between the hedge trimmer 90 and the second connecting end 22 is realized by adjusting the extension and retraction of the second telescopic device 51, which is not limited to this, the cylinder body of the second telescopic device 51 is fixedly connected to the second connecting end 22, and the piston rod of the second telescopic device 51 is fixedly connected to the hedge trimmer 90; preferably, in order to further improve the convenience of adjustment, the second telescopic device 51 is electrically connected with a controller, and the telescopic movement of the second telescopic device 51 is controlled by the controller.

Preferably, the base 10 comprises a base body 11 and a sliding plate 12 slidably disposed on the base 10 body, the sliding plate 12 is slidable along the first direction F of the base 10, and the first connecting ends 21 of the at least two cantilever rods 20 are hinged on the sliding plate 12; that is, in order to further improve the flexibility of the position movement of the trimmer 100, the base 10 is provided with the sliding plate 12 capable of sliding along the first direction F, and when in use, the adjustment of the positions of the hedge trimmer 90 and the cantilever bar 20 on the trimmer 100 can be realized only by pushing the sliding plate 12 to slide on the base body 11 along the slide 1111; specifically, two slide 1111 are symmetrically arranged on the base body 11, the sliding plate 12 is clamped in the slide 1111, and the slide 1111 is of a closed structure in the first direction F, so that the sliding plate 12 can be prevented from being separated from the slide 1111.

The base body 11 includes at least two first supporting beams 111 extending in the first direction F and oppositely arranged in the second direction S, and two second supporting beams 112 extending in the second direction S and oppositely arranged in the first direction S, wherein the at least two first supporting beams 111 are fixedly connected by the at least two second supporting beams 112, and the slideway 1111 is disposed on the at least two first supporting beams 111 and arranged along the extending direction of the first supporting beams 111. The present invention is directed to a first direction F and a second direction S which are perpendicular to each other.

In order to facilitate the movement and the control of the sliding plate 12, the sliding plate further comprises a third telescopic device 1A, one end of the third telescopic device is connected with the base 10 body, and the other end of the third telescopic device is connected with the sliding plate 12; for example, the cylinder of the third telescopic device 1A is connected to the sliding plate 12, and the piston rod of the third telescopic device 1A is connected to the body of the base 10, so that the sliding plate 12 reciprocates in the first direction F by the telescopic motion of the third telescopic device 1A; preferably, in order to facilitate the control of the third telescopic device 1A, the third telescopic device 1A is electrically connected to a controller, and the controller is used to control the third telescopic device 1A. It should be noted that the first telescoping device 30, the second telescoping device 51, and the third telescoping device 1A described in this patent may be electric push rods, hydraulic cylinders, or the like.

Further, a driving device 60 is connected to the second connecting end 22, and a driving shaft thereof is adapted to be fixedly connected to the hedge trimmer 90; that is, by connecting the driving device 60 to the second connecting end 22, the hedge trimmer 90 can be driven to rotate around the span D between the hedge trimmer 90 and the second connecting end 22, which further facilitates the operation and trimming of the hedge trimmer 90; preferably, the driving device 60 is coupled to a controller, so that the controller controls the driving device 60. For example, the driving device 60 may be a motor.

In order to facilitate the centering and trimming of the plant, the device further comprises a support positioning disc 70 which is configured to be fixedly connected to the driving shaft of the driving device 60, and the geometric central axis of the support positioning disc 70 is coincident with the geometric central line of the driving shaft; specifically, the supporting and positioning plate 70 is fixedly connected to the driving shaft of the driving device 60, so that the supporting and positioning plate 70 and the driving shaft of the driving device 60 rotate synchronously, when the plant is trimmed, the supporting and positioning plate 70 is firstly covered on the top of the plant, so that the center of the supporting and positioning plate 70 and the center of the trunk of the plant are approximately in a straight line, and then the trimming is performed. Can provide the pruning reference basis for the plant is pruned through setting up support positioning disk 70, improve the regularity of plant pruning, also be convenient for look for the trunk central line of plant. The "finding the center" is to find the center line of the trunk of the plant.

Preferably, the positioning device further comprises a camera 80 which is supported and fixedly connected to the upper end of the support positioning disc 70 through a suspension rod 81, specifically, the suspension rod 81 is installed on the cantilever rod 20 of the second connecting end 22, the camera 80 is installed on the suspension rod 81, and the centering of the support positioning disc 70, that is, the positioning of the support positioning disc 70, can be facilitated through the camera 80; the trimming efficiency is accelerated, and the trimming attractiveness is improved; preferably, the camera 80 is electrically connected with the controller, and the camera 80 collects image signals and transmits the image signals to the controller, and the image signals are transmitted to the display connected with the controller by the controller and displayed, so that the operation of the trimmer is facilitated.

The trimmer 100 is used as follows: when the trimmer 100 is used, the controller controls the first telescopic devices 30 to perform telescopic action, so as to control the cantilever rods 20 to perform relative rotation adjustment, the hedge trimmer 90 is placed by taking the support positioning disc 70 as a reference, the second connecting end 22 is suspended at the upper end of a plant to be trimmed, the hedge trimmer 90 is suspended at one side of the plant to be trimmed, the position of the driving device 60 on the second connecting end 22 is observed through the camera 80, the position of the hedge trimmer 90 is further conveniently adjusted, the length of the span D of the second telescopic device 51 is adjusted according to the size of the specific plant, and after the adjustment is finished, the hedge trimmer 90 is started and rotates around the span D which is away from the second connecting end 22 as a radius, so as to achieve the purpose of trimming the plant; the cantilever rod 20 of the pruning machine 100 can be freely stretched and retracted, is convenient to transport, simple in structure, convenient to operate and control, high in reliability, good in pruning effect, high in pruning efficiency, capable of greatly saving manpower and reducing pruning cost.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Those skilled in the art will appreciate that various features of the various embodiments of the invention described hereinabove may be omitted, added to, or combined in any manner accordingly. Moreover, the simple transformation and the solution of adapting and functional structure transformation to the prior art, which can be thought of by those skilled in the art, all belong to the protection scope of the present invention.

While the invention has been shown and described with reference to various embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. A trimmer comprising a hedge trimmer (90), characterized in that it further comprises:

a base (10);

the cantilever type connecting structure comprises at least two cantilever rods (20) which are sequentially hinged and connected, wherein each cantilever rod comprises a first connecting end (21) and a second connecting end (22) which are arranged end to end, and the first connecting ends (21) are hinged and connected with the base (10);

at least one first telescopic device (30), wherein one first telescopic device (30) is connected between one cantilever rod (20) and the base (10) and used for driving the cantilever rod (20) to rotate around a hinge point of the cantilever rod and the base (10); when the number of the first telescopic devices (30) is at least two, the rest at least one first telescopic device (30) is connected between the two adjacent cantilever rods (20) and is used for driving one of the two adjacent cantilever rods (20) to rotate around a point hinged with the other cantilever rod;

wherein the hedge trimmer (90) is pivotably connected to the second connection end (22), and the hedge trimmer (90) rotates with a radius of a span (D) from the second connection end (22).

2. The trimmer according to claim 1, characterized in that it further comprises a steering assembly (40) arranged along the extension direction of said at least two cantilevered bars (20) for supporting said cantilevered bars (20) when said at least one first telescopic means (30) drives said at least two cantilevered bars (20).

3. The trimmer according to claim 2, characterized in that the steering assembly (40) comprises:

at least one connecting rod part (41), wherein the at least one connecting rod part (41) is arranged along the first connecting end (21) of the at least two cantilever rods (20), each connecting rod part (41) is parallel and equal to the corresponding cantilever rod (20), and one end of each connecting rod part is hinged with the base (10);

the support (42) is hinged between two adjacent connecting rod parts (41) or between the other end of each connecting rod part (41) and the cantilever rod (20) provided with the second connecting end (22), and the support (42) is connected with the connecting rod parts (41), so that the connecting rod parts (41), the cantilever rods (20) parallel to the connecting rod parts and the support (42) jointly define a parallelogram.

4. The trimmer according to claim 1, characterized in that an adjusting mechanism (50) is further provided between the second connecting end (22) and the hedge trimmer (90) for adjusting the length of the span (D).

5. The trimmer according to claim 4, characterized in that the adjustment mechanism (50) comprises a second telescopic device (51) having one end fixedly connected to the hedge trimmer (90) and the other end adapted to be fixedly connected to the second connecting end (22).

6. The trimmer according to claim 1, characterized in that the base (10) comprises a base body (11) and a sliding plate (12) slidably arranged on the base body (11), the sliding plate (12) being slidable in a first direction (F) of the base, the first connection ends (21) of the at least two cantilever levers (20) being hinged on the sliding plate (12).

7. The trimmer according to claim 6, characterized in that it further comprises a third telescopic device (1A) connected at one end to said base body (11) and at the other end to said slide (12).

8. The trimmer according to claim 1, characterized in that a drive device (60) is connected to the second connecting end (22), the drive shaft of which is adapted to be fixedly connected to the hedge trimmer (90).

9. The trimmer according to claim 8, further comprising a support puck (70) configured for fixed connection to a drive shaft of the drive device (60), and wherein the geometric centre axis of the support puck (70) coincides with the geometric centre line of the drive shaft.

10. The trimmer according to claim 9, further comprising a camera (80) supported and fixedly connected to the upper end of the support puck (70) by a suspension rod (81).