CN213567493U - Medical receiver and medical tower crane - Google Patents

Abstract

The utility model is suitable for a medical equipment field discloses a medical receiver and medical tower crane. Wherein, medical receiver includes box body, flip and is used for the buckle part of medical receiver joint on the guide rail of medical tower crane, and the box body has the chamber of acceping that is used for the holding article, and it has the accent of opening the setting to accept the chamber, and flip rotates and connects box body and closing cap accent, and the buckle part is protruding to be located outside the box body. The utility model provides a medical receiver can be very conveniently the joint on the equipment that has the guide rail, and its mounted position is nimble, does not set up storage device's medical tower crane to earlier stage, can directly the joint on the edge guide rail of medical tower crane the utility model provides a medical receiver can accomplish and install storage device's upgrading operation additional, and need not do any improvement operation to the equipment principal of medical tower crane, and the upgrading cost is all very little with the degree of difficulty.

Description

Medical receiver and medical tower crane

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a medical receiver and have medical tower crane of this medical receiver.

Background

The medical tower crane is used in medical places such as operating rooms, ICUs, medical rooms, rehabilitation rooms and general wards, and can bear medical equipment so as to provide good operation and nursing spaces and provide system equipment with various terminal interfaces. Some small articles such as thermometers, electrode plates, tissues, scattered medicines and the like are usually placed in the ICU, and the small articles need to be collected in a centralized manner for keeping the cleanness of the ICU environment and improving the working efficiency of medical staff.

At present, the small articles in the ICU are all stored on a medical tower crane, and the common storage schemes mainly comprise two types:

1) the drawer is stored: this solution, which usually uses separate drawers mounted on the terminal box for the storage of the items, has the main drawbacks: the drawer contains more and more sundry articles, and small articles are not easy to find in a short time when being put in the drawer, so that the working efficiency of medical staff is influenced; and for the medical tower crane which is not provided with the drawer accessories in the earlier stage, if the drawer needs to be upgraded and installed, the upgrading and improving difficulty is higher.

2) The terminal box is stored: this kind of scheme is direct opens up the storage space in the terminal box inner chamber, and this kind of mode also has the article of accomodating and acquires the shortcoming difficult and later stage upgrading, simultaneously owing to reserved extra storage space, so the size of terminal box can increase, has reduced the operation space of doctorsing and nurses.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a medical receiver, it aims at solving the technical problem that current medical tower crane upgrades installs the storage device difficulty additional.

In order to achieve the above purpose, the utility model provides a scheme is: the utility model provides a medical storage box, includes box body, flip and is used for with medical storage box joint clamping part on the guide rail of medical tower crane, the box body has the chamber of acceping that is used for holding article, it has the accent of opening setting to accept the chamber, flip rotates to be connected box body and closing cap the accent, the protruding locating of clamping part is outside the box body.

A second object of the utility model is to provide a medical tower crane, including equipment principal and foretell medical receiver, equipment principal has the guide rail that is located the edge, medical receiver passes through the clamping part joint is in on the guide rail.

The utility model provides a medical receiver and medical tower crane, through the chamber holding article of acceping of box body, the accent of acceping the chamber through the flip closing cap accepts the article in the chamber with the protection, and flip opens and is closed through the upset, can make medical personnel put into, take article in medical receiver fast, conveniently. Furthermore, the utility model discloses an establish at the box body evagination can with guide rail joint complex clamping part for medical receiver can be very conveniently the joint on the equipment that has the guide rail, and its mounted position is nimble. Do not have storage device's medical tower crane in earlier stage, can directly joint on the edge guide rail of medical tower crane the utility model provides a medical receiver can accomplish and install storage device's upgrading operation additional, and need not do any improvement operation to the equipment principal of medical tower crane, and the upgrading cost is all very little with the degree of difficulty.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an angle of a medical storage box according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another angle of the medical storage box according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

fig. 5 is an exploded view of a medical storage box according to an embodiment of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is an enlarged view of a portion of FIG. 5 at D;

FIG. 8 is an enlarged view of a portion of FIG. 5 at E;

fig. 9 is an assembly schematic diagram of a medical storage box and a tray provided by the embodiment of the utility model.

The reference numbers illustrate: 100. a medical storage box; 1. a box body; 11. an accommodating cavity; 111. a lumen port; 12. a first side portion; 121. an avoidance groove; 122. a trench sidewall; 123. a tank bottom wall; 13. a second side portion; 131. a third groove; 14. a pin shaft; 15. drawing the opening; 16. a flange; 2. a cover is turned; 21. a claw; 211. a card slot; 212. a fixed arm; 2121. a first groove; 213. a resilient arm; 2131. a second groove; 22. a cover plate; 221. a first board surface; 23. reinforcing ribs; 3. a fastening part; 31. a lateral extension; 32. a vertical extension; 33. a limiting bulge; 4. a limiting groove; 200. a tray; 201. a guide rail.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-9, an embodiment of the present invention provides a medical storage box 100, including a box body 1, a flip cover 2 and a fastening portion 3, the fastening portion 3 is used for fastening the medical storage box 100 to a guide rail 201 of a medical tower crane, the box body 1 has an accommodating cavity 11 for accommodating articles, the accommodating cavity 11 has an opening 111, the flip cover 2 rotates to connect the box body 1 and covers the opening 111, and the fastening portion 3 is convexly disposed outside the box body 1. The containing cavity 11 of the box body 1 is mainly used for containing articles, and the flip cover 2 is mainly used for covering the cavity opening 111 of the containing cavity 11 to protect the articles in the containing cavity 11. Since the lid 2 is opened and closed by turning, the medical staff can quickly and conveniently put in and take out the articles in the medical storage box 100. The arrangement of the buckling part 3 enables the medical storage box 100 to be conveniently clamped on equipment with the guide rail 201, and the installation position of the medical storage box is flexible. Do not have storage device's medical tower crane to earlier stage, can directly joint on the edge guide rail 201 of medical tower crane the embodiment of the utility model provides a medical receiver 100 can accomplish and install storage device's upgrading operation additional, and need not do any improvement operation to the equipment principal of medical tower crane, and the cost of upgrading and the degree of difficulty are all very little.

Referring to fig. 2, 3 and 9, the fastening portion 3 includes a horizontal extension portion 31, a vertical extension portion 32 and a limiting protrusion 33, the horizontal extension portion 31 extends from the outer surface of the box body 1 toward a direction away from the box body 1, the vertical extension portion 32 extends from the end portion of the horizontal extension portion 31 away from the box body 1 toward a direction away from the flip cover 2, the outer surface of the box body 1, the horizontal extension portion 31 and the vertical extension portion 32 enclose to form a limiting groove 4 for being fastened and matched with the guide rail 201, and the limiting protrusion 33 is disposed on the vertical extension portion 32 and protrudes toward the limiting groove 4. In this embodiment, the horizontal direction is the horizontal direction, and the vertical direction is the vertical direction, and the horizontal extension 31 extends protrudingly from the surface of box body 1 along the horizontal direction promptly, and vertical extension 32 extends along vertical direction downwardly from the tip of keeping away from box body 1 of horizontal extension 31, and horizontal extension 31 and vertical extension 32 constitute a structure of falling the L-shape, and spacing groove 4 has the notch that opens the setting downwards, and like this for medical receiver 100 can be very conveniently the spiral-lock on guide rail 201. Of course, the lateral extension 31 and the vertical extension 32 may not be perpendicular to each other in a specific application.

The arrangement of the limiting protrusions 33 can prevent the buckling part 3 from easily slipping off the guide rail 201, and the stability of the medical storage box 100 mounted on the guide rail 201 is improved. Spacing arch 33 can set up one, also can set up a plurality ofly, and when setting up a plurality of spacing archs 33, guide rail 201 of the different degree of depth of medical receiver 100 adaptation enlarges the application scene of medical receiver 100. Of course, in a specific application, the locking portion 3 may not be provided with the limiting protrusion 33, for example, the stability of the medical storage box 100 mounted on the guide rail 201 may also be ensured by the interference fit between the limiting groove 4 and the guide rail 201.

Referring to fig. 3, 5 and 9, the box body 1 has a first side portion 12 and a second side portion 13 disposed opposite to each other, one end of the flip 2 is rotatably connected to the first side portion 12, and the other end of the flip 2 is driven to contact or separate from the second side portion 13 by rotation, and the locking portion 3 is disposed in the first side portion 12 in a protruding manner. In this embodiment, the first side 12 is a rear side of the box 1, the second side 13 is a front side of the box 1, the opening of the lid 2 is operated from the front side of the box 1, and the fastening portion 3 is located at the rear side of the box 1, so as to improve the aesthetic property of the medical storage box 100 mounted on the guide rail 201. As an alternative embodiment, the fastening portion 3 and the connection portion of the flip cover 2 with the case 1 may be disposed on different sides of the case 1, for example: the connection part of the flip 2 and the box 1 is still at the back side (i.e. the first side 12), and the fastening part 3 is arranged at the left side or the right side of the box 1.

Referring to fig. 2, 3 and 5, preferably, the second side portion 13 is recessed with a third groove 131 at an edge enclosing the cavity 111, the third groove 131 is recessed downward from the edge of the cavity 111, the third groove 131 has a notch opening upward, and the third groove 131 is disposed to facilitate the medical staff to open the lid 2.

Referring to fig. 3, 5, 6 and 7, preferably, the first side portion 12 is provided with a pin 14, the flip cover 2 is provided with a claw 21, and the claw 21 is provided with a slot 211 rotatably engaged with the pin 14. The pin shaft 14 and the claw 21 form a rotary joint to realize the rotary opening and closing of the flip cover 2. In other embodiments, the first side 12 may be provided with a pawl and the flip 2 may be provided with a pin. In the embodiment, the flip cover 2 is rotatably connected with the box body 1 through the matching of the pin shaft 14 arranged on the box body 1 and the claw 21 arranged on the flip cover 2; of course, in a specific application, the rotational connection manner of the flip cover 2 and the box body 1 is not limited to this, for example: as an alternative embodiment, it is also possible to provide the first side 12 with a catch and the flap 2 with a pin. In this way, the turning cover 2 can be rotationally connected with the box body 1 through the matching of the pin shaft and the clamping jaw; alternatively, as another alternative embodiment, the lid 2 may be connected to the box 1 by a hinge (also called a hinge).

Preferably, the pin shaft 14 is in interference fit with the slot 211, so that friction torque generated between the pin shaft 14 and the slot 211 can realize slow descending of the flip 2, and large impact noise generated when the flip 2 is closed is avoided.

Referring to fig. 5-7, the first side portion 12 is recessed with an avoiding groove 121 at an edge surrounding the cavity 111, the avoiding groove 121 is recessed downward from the edge of the cavity 111, and the avoiding groove 121 has a notch opening upward. The avoiding groove 121 includes two groove sidewalls 122 disposed oppositely and a groove bottom wall 123 connecting the two groove sidewalls 122, and the pin 14 is disposed on the groove sidewalls 122. In this embodiment, there are two pin shafts 14, and the claw 21 includes two engaging grooves 211 respectively rotatably engaged with the two pin shafts 14. Two round pin axles 14 extend from two groove lateral walls 122 respectively in opposite directions, and the tip that keeps away from groove lateral wall 122 of two round pin axles 14 sets up relatively and has the interval between the two, promptly: the two pins 14 are coaxially arranged, and the opposite end parts of the two pins 14 are not contacted with each other, which is beneficial to saving materials and facilitating the manufacture of the pins 14. Of course, as an alternative embodiment, the pin 14 may be formed as an integral type, that is, the pin 14 is provided with one, and two ends of the pin 14 are respectively fixed on the two groove side walls 122, in this case, the claw 21 may include one catching groove 211 matched with the pin 14 or at least two catching grooves 211 respectively matched with different portions of the pin 14 in a rotating manner.

Referring to fig. 3 and 5, the flip cover 2 includes a cover plate 22 and the above-mentioned claws 21. The cover plate 22 has a first plate 221, the first plate 221 is supported on the box 1 when the cover 2 covers the box 1, and the latch 21 is disposed on the first plate 221.

Referring to fig. 4 and 7, the latch 21 includes a fixed arm 212 and an elastic arm 213, the fixed arm 212 and the elastic arm 213 are both protruded on the first plate 221, and a space is formed between the fixed arm 212 and the elastic arm 213. A first groove 2121 is disposed on a side of the fixed arm 212 facing the elastic arm 213, a second groove 2131 is disposed on a side of the elastic arm 213 facing the fixed arm 212, and the first groove 2121 and the second groove 2131 enclose to form a locking groove 211.

Referring to fig. 5 and 7, preferably, the first plate surface 221 further has a rib 23 protruding thereon, the fixing arm 212 is connected to the rib 23, and a space is provided between the elastic arm 213 and the rib 23, i.e., the elastic arm 213 is not in contact with the rib 23. In this embodiment, the fixing arm 212 is integrally connected to the reinforcing rib 23, and the elastic arm 213 is an independent rib, so that the rigidity of the fixing arm 212 and the elasticity of the elastic arm 213 are improved.

Preferably, the thickness of the fixing arm 212 is greater than that of the elastic arm 213, which is advantageous in increasing the rigidity of the fixing arm 212.

Referring to fig. 4, 5 and 7, preferably, the fixed arm 212 is disposed at an edge of the first plate 221, the elastic arm 213 is disposed between the fixed arm 212 and a center of the first plate 221, and a depth of the first groove 2121 is greater than a depth of the second groove 2131. Through the arrangement mode, after the claw 21 and the pin shaft 14 are assembled, the fixed arm 212 deforms less relative to the elastic arm 213, so that the deformation area of the flip cover 2 is positioned in the box body 1, the appearance does not have the phenomenon of profile protrusion, meanwhile, the elastic arm 213 deforms to generate pressing force on the pin shaft 14, and the pressing force is converted into friction torque in the rotation process of the flip cover 2. By adjusting the magnitude of interference of the pin shaft 14 and the clamping groove 211, proper friction damping can be provided between the pin shaft 14 and the clamping jaw 21, so that the resistance of the flip cover 2 is moderate in the falling process, thereby not only avoiding the generation of large impact noise when the flip cover 2 is closed, but also avoiding the failure of automatic closing of the flip cover 2, and improving the usability and quality of the product.

Referring to fig. 3, 5 and 8, a drawing opening 15 communicated with the accommodating cavity 11 is further formed at the bottom of the box body 1 in a penetrating manner, and the drawing opening 15 is used for medical staff to draw tissues or gloves placed in the box body 1 from the outside of the medical storage box 100, so that the medical staff can quickly take out the tissues, the gloves and other small articles in the box body 1 without opening the flip cover 2, and the smoothness of medical operation can be further improved. Of course, in a specific application, the drawing opening 15 is not limited to be arranged at the bottom of the box body 1, and may be arranged on the flip cover 2 or at the side of the box body 1.

Referring to fig. 3, 5 and 8, preferably, a flange 16 is disposed around the drawing opening 15 and protrudes into the receiving cavity 11. The flange 16 prevents small and scattered objects such as thermometers, electrode plates, medicines and the like placed in the cassette body 1 from falling from the drawing port 15, so that the medical storage cassette 100 can be used as a drawing cassette and can also be used for placing small and scattered medical objects such as thermometers, electrode plates, medicines and the like.

As a preferred embodiment of this embodiment, the flip cover 2 is a transparent cover made of a transparent material, so that the articles in the medical storage box 100 can be seen at a glance even when the flip cover 2 is not opened, so that the medical staff can quickly determine the placement position of the desired articles, and the desired articles can be conveniently obtained. Of course, as an alternative embodiment, the flip cover 2 may be made of a translucent material, so that the medical staff can see the contents of the medical storage box 100 through the flip cover 2 even when the flip cover 2 is not opened. In addition, the box body 1 can also be a transparent component made of a transparent material or a semitransparent component made of a semitransparent material, so that the medical staff can see the articles in the medical storage box 100 under the condition that the turnover cover 2 is not opened.

Preferably, the external profile of box body 1 is the cuboid, and the length of box body 1 is worth doing in 200 ~ 300 mm's scope, the width is worth doing in 80 ~ 150mm scope, the height is worth doing in 50 ~ 100mm scope. The cartridge 1 is suitable in size and can be flexibly mounted to a plurality of portions of the apparatus main body. The medical storage box 100 provided by the embodiment is a small medical storage box, and the phenomenon that small articles are not easily found in a short time due to the fact that too many small articles are stored in a single medical storage box can be avoided, so that the medical storage box is favorable for improving the efficiency of medical personnel for obtaining the small articles from the medical storage box.

The embodiment of the utility model provides a still provide a medical tower crane, including equipment principal (not shown) and foretell medical receiver 100, equipment principal has the guide rail 201 that is located the edge, and medical receiver 100 passes through 3 joints of buckle portion on guide rail 201. The embodiment of the utility model provides a medical tower crane, owing to adopted foretell medical receiver 100, so be convenient for concentrate little article and accomodate, and the nimble of medical receiver 100 mounted position, the medical personnel of being convenient for article of taking fast have realized providing the solution that the utilization ratio is higher, the convenience is higher for little article in the medical field.

The guide rail 201 may be a square rail (the square rail is a guide rail having a square cross section cut perpendicular to the longitudinal direction thereof) or a circular rail (the circular rail is a guide rail having a circular cross section) or a structure having another cross section.

Specifically, the main body of the device includes a hanging column (not shown in the figures) and a tray 200 mounted on the hanging column, please refer to fig. 1 and 9, a guide rail 201 is provided at an edge of the tray 200, and the medical storage box 100 is clamped to the edge of the tray 200 through the matching of the clamping portion 3 and the guide rail 201. Of course, if the hanging post is provided with the guide rail 201, the medical storage box 100 can be clamped on the hanging post through the matching of the clamping part 3 and the guide rail 201.

The medical crane tower provided by the embodiment can be in a tower structure or a bridge structure (namely, a medical crane bridge).

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (15)

1. Medical receiver, its characterized in that, including box body, flip and be used for with medical receiver joint clamping part on the guide rail of medical tower crane, the box body has the chamber of acceping that is used for the holding article, it has the accent of opening setting to accept the chamber, flip rotates to be connected box body and closing cap the accent, the protruding locating of clamping part is outside the box body.

2. The medical storage box of claim 1, wherein the box body has a first side portion and a second side portion opposite to each other, one end of the flip is rotatably connected to the first side portion and the other end of the flip is driven to contact or separate from the second side portion by rotation, and the locking portion is protruded on the first side portion.

3. The medical storage box of claim 1, wherein the fastening portion comprises a lateral extension portion and a vertical extension portion, the lateral extension portion extends from the outer surface of the box body towards the direction away from the box body, the vertical extension portion extends from the end portion of the lateral extension portion away from the box body towards the direction away from the flip cover, and the outer surface of the box body, the lateral extension portion and the vertical extension portion enclose to form a limiting groove for being in clamping fit with the guide rail.

4. The medical storage box of claim 3, wherein the locking portion further comprises a limiting protrusion, and the limiting protrusion is disposed on the vertical extending portion and protrudes toward the limiting groove.

5. The medical storage box of claim 2, wherein one of the first side portion and the flip cover is provided with a pin, and the other one of the first side portion and the flip cover is provided with a claw, and the claw is provided with a slot which is rotatably matched with the pin.

6. The medical storage box according to claim 5, wherein the pin is disposed on the first side portion, the claw is disposed on the flip, an avoiding groove is concavely disposed on an edge of the first side portion surrounding the opening, the avoiding groove comprises two oppositely disposed groove side walls and a groove bottom wall connecting the two groove side walls, and the pin is disposed on the groove side walls; the flip cover comprises a cover plate and a clamping claw arranged on the cover plate.

7. The medical storage box according to claim 6, wherein there are two of the pins, the two pins extend from the two side walls of the slot in opposite directions, and the ends of the two pins away from the side walls of the slot are spaced apart from each other, and the claw includes two of the engaging grooves which are rotatably engaged with the two pins; or,

the pin shaft is provided with one, two ends of the pin shaft are respectively fixed on the two groove side walls, and the clamping jaw comprises one clamping groove or at least two clamping grooves which are respectively in running fit with different parts of the pin shaft.

8. The medical storage box according to claim 6 or 7, wherein the cover plate has a first plate surface supported on the box body when the flip cover is covered on the box body, and the claw comprises a fixed arm and an elastic arm, and both the fixed arm and the elastic arm are protruded on the first plate surface; one side of the fixed arm, which faces the elastic arm, is provided with a first groove, one side of the elastic arm, which faces the fixed arm, is provided with a second groove, and the first groove and the second groove are enclosed to form the clamping groove.

9. The medical storage cassette of claim 8, wherein the thickness of the securing arm is greater than the thickness of the resilient arm; and/or the presence of a gas in the gas,

the fixed arm is arranged at one edge of the first plate surface, the elastic arm is positioned between the fixed arm and the center of the first plate surface, and the depth of the first groove is greater than that of the second groove; and/or the presence of a gas in the gas,

the first plate surface is also convexly provided with a reinforcing rib, the fixed arm is connected with the reinforcing rib, and a space is reserved between the elastic arm and the reinforcing rib; and/or the presence of a gas in the gas,

the pin shaft is in interference fit with the clamping groove.

10. The medical cassette of claim 1, wherein the flap is connected to the cassette by a hinge.

11. The medical storage box according to any one of claims 1-7 or 10, wherein a drawing opening is further provided through the box body or the flap, the drawing opening communicating with the receiving cavity for drawing tissues or gloves placed in the box body from outside the medical storage box.

12. The medical storage cassette of claim 11, wherein the pull opening is formed through the bottom of the cassette body, and a flange is formed around the pull opening in the storage chamber.

13. The medical storage cassette of any one of claims 1 to 7 or 10, wherein the flap is a transparent cover made of a transparent material or a translucent cover made of a translucent material; and/or the presence of a gas in the gas,

the box body is a transparent component made of a transparent material or a semitransparent component made of a semitransparent material; and/or the presence of a gas in the gas,

the outside profile of box body is the cuboid, just the length of box body is worth at 200 ~ 300 mm's within range, the width is worth at 80 ~ 150mm within range, highly is worth at 50 ~ 100mm within range.

14. The medical tower according to any one of claims 1 to 13, comprising an apparatus main body having a rail at an edge, and the medical storage cassette being engaged with the rail by the engaging portion.

15. The medical tower crane of claim 14, wherein the apparatus body comprises a boom and a tray mounted on the boom, the edges of the boom and/or the tray being provided with the guide rails.

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