Full-automatic binding device of steel reinforcement cage among municipal building engineering

文档序号:1653957 发布日期:2019-12-27 浏览:21次 中文

阅读说明:本技术 一种市政建筑工程中钢筋笼全自动扎接装置 (Full-automatic binding device of steel reinforcement cage among municipal building engineering ) 是由 吴晓建 于 2019-09-30 设计创作,主要内容包括:本发明涉及一种市政建筑工程中钢筋笼全自动扎接装置。其包括环形壳体和主筋支撑主体,所述环形壳体和主筋支撑主体为完全分离的两部分,所述环形壳体内设有环形空腔,所述环形壳体上贯穿所述环形空腔设有周向分布的多个对接孔,所述环形壳体内圈内壁上贯通设有位于任意相邻两个对接孔之间的双层的第一插槽,该装置还包括位于所述环形壳体中心处开口向上的筒壳,所述筒壳侧面内壁上贯通设有与所述第一插槽一一对应的第二插槽,所述筒壳侧面位于相邻两个第二插槽之间的端面上与所述环形壳体内壁位于相邻两个第一插槽之间的侧面之间固定连接有前后分布的双层的固定杆。(The invention relates to a full-automatic binding device for a reinforcement cage in municipal building engineering. It includes that annular housing and main muscle support the main part, annular housing and main muscle support the main part for two parts of complete separation, be equipped with the toroidal cavity in the annular housing, run through on the annular housing the toroidal cavity is equipped with a plurality of butt joint holes that circumference distributes, link up on the inner circle inner wall of annular housing and be equipped with the first slot that is located arbitrary two adjacent double-deck between the butt joint hole, the device is still including being located annular housing center department opening ascending bobbin case, link up on the bobbin case side inner wall be equipped with the second slot of first slot one-to-one, the bobbin case side be located on the terminal surface between two adjacent second slots with the annular housing inner wall is located the double-deck dead lever of distribution around the fixedly connected with between the side between two adjacent first slots.)

1. The utility model provides a full-automatic binding of steel reinforcement cage connects device among municipal building engineering which characterized in that: it includes annular casing (150) and main muscle support subject (100), annular casing (150) and main muscle support subject (100) are two parts of complete separation, be equipped with annular cavity (159) in annular casing (150), run through on annular casing (150) annular cavity (159) are equipped with a plurality of butt joint hole (151) that circumference distributes, it is equipped with the first slot (161) that are located the bilayer between arbitrary two adjacent butt joint hole (151) to link up on annular casing (150) inner circle inner wall, the device is still including being located ascending bobbin case (167) of annular casing (150) center department opening, link up on bobbin case (167) side inner wall be equipped with second slot (179) of first slot (161) one-to-one, bobbin case (167) side be located on the terminal surface between two adjacent second slot (179) and before annular casing (150) inner wall is located fixedly connected with between the side between two adjacent first slot (161) The double-deck dead lever (164) of back distribution, fixedly connected with encircles on dead lever (164) firm ring (166) of cartridge case (167), be equipped with on firm ring (166) between two adjacent dead levers (164) and stabilize circle (165), be equipped with in the firm ring (165) size with first slot (161) and second slot (179) the same third slot (180) and the three is on the same straight line that leads to the centre of a circle, sliding connection has rectangle dowel steel (163) between first slot (161), second slot (179) and third slot (180), rectangle dowel steel (163) stretch into annular cavity (159) in one end be equipped with two-way promotion awl head (162), rectangle dowel steel (163) other end stretches into cartridge case (167) and is equipped with arc inclined plane portion (168), sliding connection has circumference to distribute in annular cavity (159) and the distribution that one-to-one is located the two-way promotion awl head (162) both sides of a certain two-way promotion awl head (162), the one-to-one Force slotted clamping block assembly, be equipped with internal thread chamber (181) in barrel casing (167), internal thread chamber (181) female connection have and be used for with arc inclined plane portion (168) sliding connection's external screw thread conical head (172), two upper and lower external screw thread conical heads (172) are through transmission post (170) fixed connection, transmission post (170) top is stretched out external and chisel has interior hexagonal groove (158) of internal thread chamber (181), main muscle support main body (100) are used for supporting the main muscle of reinforcing bar and are convenient for annular housing (150) to splice, main muscle support main body (100) side four corners is equipped with conversion mouth (120), conversion mouth (120) internal rotation is connected with second pivot (121), fixedly connected with support arm (102) on second pivot (121), support arm (102) set up to the hydraulic telescoping rod that can extend, hydraulic telescoping rod end fixedly connected with tong (103), the main rib supporting device is characterized in that a first transmission cavity (107) is arranged in the center of the main rib supporting body (100), a second transmission cavity (136) is arranged at the right end of the first transmission cavity (107), a third rotating shaft (133) is connected to the inner wall of the first transmission cavity (107) in a rotating manner, a fourth rotating wheel (134) is fixedly connected to the tail end of the other end of the third rotating shaft (133), a petal disc (135) positioned at the right end of the fourth rotating wheel (134) is fixedly connected to the third rotating shaft (133), a fourth rotating shaft (142) positioned at the bottom of the third rotating shaft (133) is connected between the first transmission cavity (107) and the second transmission cavity (136) in a rotating manner, the center of the fourth rotating shaft (142) is positioned in the maximum circumscribed circle of the petal disc (135), the left end of the fourth rotating shaft (142) extends into the first transmission cavity (107) and is fixedly connected with a disc (130) positioned at the right end of the petal disc (, the position, far away from the center, of the end face of the left end of the disc (130) is fixedly connected with a poke rod (131) used for poking between gaps of the petal disc (135), the right end of the fourth rotating shaft (142) extends into the second transmission cavity (136) and is fixedly connected with a fifth gear rotating wheel (143), the upper end and the lower end of the first transmission cavity (107) are provided with symmetrical transmission components used for linkage power to drive the second rotating shaft (121) to rotate, the inner wall of the left end of the first transmission cavity (107) is provided with a same-speed same-ratio clutch switching transmission mechanism used for linkage transmission components and the fourth gear rotating wheel (134), the second transmission cavity (136) is provided with a power switching mechanism used for driving an extension transmission component and a micro-rotating speed transmission mechanism, the inner wall of the right end of the second transmission cavity (136) is rotatably connected with a first rotating shaft (132) concentric with the third rotating shaft (133), the left end of the first rotating shaft (132) extends into the second transmission cavity (136) and is fixedly connected with a third gear rotating wheel (137) connected with the power switching mechanism, the right end of the first rotating shaft (132) extends out of the main rib supporting machine body (100) and is fixedly connected with a hexagonal shaft (104), and an inner hexagonal sleeve and an outer hexagonal sleeve (101) which are used for being connected with the inner hexagonal groove (158) in an inserting mode are sleeved on the hexagonal shaft (104).

2. The full-automatic steel reinforcement cage binding device in municipal building engineering according to claim 1, characterized in that: magnetic force slot grip block subassembly includes that sliding connection is in the two-way tight piece (152) of pressing from both sides of promoting awl head (162) both sides of arbitrary one, press from both sides tight piece (152) and keep away from and be equipped with on the two-way promotion awl head (162) one end face and sting mark (153) that it corresponds, press from both sides tight piece (152) be close to its corresponding two-way promotion awl head (162) one end face on be equipped with be used for with two-way promotion awl head (162) sliding connection complex permanent magnetism piece (160), two corresponding permanent magnetism pieces (160) between have the gravitation of inter attraction.

3. The full-automatic steel reinforcement cage binding device in municipal building engineering according to claim 1, characterized in that: the gap between the clamping blocks (152) of the two adjacent groups is positioned at the butt joint hole (151) and the width of the gap is larger than the diameter of the reinforcing steel bar.

4. The full-automatic steel reinforcement cage binding device in municipal building engineering according to claim 1, characterized in that: the transmission assembly comprises a third transmission cavity (119) which is arranged in the main rib supporting body (100), the upper end and the lower end of the third transmission cavity are symmetrical, the third transmission cavity is positioned at two sides of the first transmission cavity (107), a fourth transmission cavity (128) which is positioned in the center of the main rib supporting body (100) and at the right end of the first transmission cavity (107) and is symmetrical up and down, the right end of the second rotating shaft (121) extends into the third transmission cavity (119) and is fixedly connected with a first bevel gear (122), a fifth rotating shaft (124) which extends forwards and backwards is rotatably connected in the third transmission cavity (119), a second bevel gear (123) which is symmetrical forwards and backwards and is used for being meshed with the first bevel gear (122) is fixedly connected on the fifth rotating shaft (124), a first turbine (125) is arranged in the middle of the fifth rotating shaft (124), and a sixth rotating shaft (127) is rotatably arranged between the fourth transmission cavity (128) and the third transmission cavity (119), the sixth rotating shaft (127) extends into the third transmission cavity (119) away from the center side of the main rib supporting body and is provided with a first worm (126) for being in power connection with the first worm wheel (125), the other end of the sixth rotating shaft (127) extends into the fourth transmission cavity (128) and is fixedly connected with a second turbine (115) at the tail end, a seventh rotating shaft (117) which is vertically symmetrical by taking the third rotating shaft (133) as a symmetrical center is rotatably arranged between the first transmission cavity (107) and the fourth transmission cavity (128), the right end of the seventh rotating shaft (117) extends into the fourth transmission cavity (128) and is provided with a second worm (118) for being in power connection with the second turbine (115), the other end of the seventh rotating shaft (117) extends into the first transmission cavity (107) and is provided with a sixth gear rotating wheel (116), the maximum circumscribed circle of the upper and lower sixth toothed rotating wheels (134) is the same as the maximum external circle distance corresponding to the fourth toothed rotating wheel (134).

5. The full-automatic steel reinforcement cage binding device in municipal building engineering according to claim 1, characterized in that: the same-speed same-ratio clutch switching transmission mechanism comprises a first sliding groove (109) opened in the inner wall of the left end of a first transmission cavity (107), a first sliding block (110) is connected in the first sliding groove (109) in a sliding manner, a first pusher (108) embedded in the top of the first sliding groove (109) is connected at the top of the first sliding block (110) in a power connection manner, a fifth transmission cavity (148) is arranged in the first sliding block (110), eighth rotating shafts (112) which are symmetrical up and down are rotatably arranged on the inner wall of the right end of the fifth transmission cavity (148), the left end of each eighth rotating shaft (112) extends into the fifth transmission cavity (148) and is fixedly connected with a belt wheel (111), a belt (114) is connected between the two belt wheels (111) in a power connection manner, and the right end of each eighth rotating shaft (112) extends out of the first sliding block (110) and is fixedly connected with a seventh rotating wheel tooth (113), the two seventh toothed rotating wheels (113) are respectively positioned at the upper end and the lower end of the sixth toothed rotating wheel (134).

6. The full-automatic steel reinforcement cage binding device in municipal building engineering according to claim 1, characterized in that: the power switching mechanism comprises a second sliding chute (140) formed in the inner wall of the rear end of the second transmission cavity (136), a second sliding block (147) is connected in the second sliding chute (140) in a sliding manner, the front end of the second sliding block (147) extends out of the second sliding chute (140), a second pusher (141) is embedded in the inner wall of the bottom of the second sliding chute (140), the tail end of an output rod at the top of the second pusher (141) is fixedly connected with the bottom of the second sliding block (147), a sixth transmission cavity (146) is arranged in the second sliding block (147), a ninth rotating shaft (149) penetrating left and right is rotationally connected in the sixth transmission cavity (146), two ends of the ninth rotating shaft (149) extend out of two ends of the second sliding block (147) and is fixedly connected with an eighth gear rotating wheel (138) meshed with the third gear rotating wheel (137) or the fifth gear rotating wheel (143), and a third bevel gear (145) positioned in the sixth transmission cavity (146) is arranged on the ninth rotating shaft (149), a motor (139) is embedded in the inner wall of the bottom of the sixth transmission cavity (146), and the tail end of the output end of the motor (139) is fixedly connected with a fourth gear rotating wheel (144) which is used for being meshed with the third gear rotating wheel (145).

7. The full-automatic steel reinforcement cage binding device in municipal building engineering according to claim 1, characterized in that: the main rib supporting main body (100) is internally provided with a controller which is electrically connected with all the motors (139) and the second motor (150) through leads.

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a full-automatic binding device for a reinforcement cage in municipal constructional engineering.

Background

In civil construction engineering developing at a high speed, an advanced technical means needs to be introduced, so that labor cost and construction quality are reduced, steel bars are tied to the most foundation and the most important part in a building, manual labor force is often needed to the most foundation in the tying and forming process of a steel bar cage, when the steel bar cage is tied, a main bar needs to be manually supported, the steel bars are often tied to be bent or inclined due to the fact that the steel bars are heavy, in addition, due to the fact that the sizes of the steel bar cage are different, even the shapes of the steel bar cage are not fixed sometimes, supports which need to be manually placed and moved need to be tied, time and labor are wasted, and the standard is poor.

Disclosure of Invention

1. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A full-automatic binding device for a reinforcement cage in municipal construction engineering comprises an annular shell and a main reinforcement supporting main body, wherein the annular shell and the main reinforcement supporting main body are two parts which are completely separated, an annular cavity is arranged in the annular shell, a plurality of butt joint holes which are distributed in the circumferential direction are formed in the annular shell in a penetrating mode and penetrate through the annular cavity, double-layer first slots which are located between any two adjacent butt joint holes are arranged on the inner wall of an inner ring of the annular shell in a penetrating mode, the device further comprises a barrel shell which is located at the center of the annular shell and is provided with an upward opening, second slots which correspond to the first slots in a one-to-one mode are arranged on the inner wall of the side face of the barrel shell, which is located between two adjacent second slots, and the side face, located between the two adjacent first slots, of the inner wall of the, the fixing rods are fixedly connected with stabilizing rings surrounding the barrel shell, the stabilizing ring between every two adjacent fixing rods is provided with a stabilizing ring, a third slot with the same size as the first slot and the second slot is arranged in the stabilizing ring, the three slots are arranged on the same straight line leading to the circle center, a rectangular force transmission plate is connected among the first slot, the second slot and the third slot in a sliding manner, one end of the rectangular force transmission plate extending into an annular cavity is provided with a bidirectional pushing conical head, the other end of the rectangular force transmission plate extending into the barrel shell is provided with an arc inclined plane part, the annular cavity is internally and slidably connected with magnetic slotted clamping block components which are distributed circumferentially and are distributed on two sides of one bidirectional pushing conical head in a one-to-one correspondence manner, an internal thread cavity is arranged in the barrel shell, and the internal thread of the internal thread cavity is connected with an external thread conical head which is used for being in sliding connection with, the upper and lower external thread conical heads are fixedly connected through a force transmission column, the top of the force transmission column extends out of the internal thread cavity and is provided with an internal hexagonal groove, the main bar supporting main body is used for supporting a main bar of a reinforcing steel bar so as to be convenient for binding the annular shell, four corners of the side surface of the main bar supporting main body are provided with conversion ports, a second rotating shaft is rotatably connected in the conversion ports, a supporting arm is fixedly connected on the second rotating shaft and is provided with a hydraulic telescopic rod capable of extending, the tail end of the hydraulic telescopic rod is fixedly connected with a clamping hand, a first transmission cavity is arranged in the center of the main bar supporting main body, the right end of the first transmission cavity is provided with a second transmission cavity, the inner wall of the first transmission cavity is rotatably connected with a third rotating shaft, the tail end of the other end of the third rotating shaft is fixedly connected with a fourth toothed rotating wheel, and a petal disc positioned, a fourth rotating shaft is rotatably connected between the first transmission cavity and the second transmission cavity and positioned at the bottom of the third rotating shaft, the center of the fourth rotating shaft is positioned in the maximum circumscribed circle of the petal disc, the left end of the fourth rotating shaft stretches into the first transmission cavity and is fixedly connected with a disc positioned at the right end of the petal disc, the position of the end surface of the left end of the disc far away from the center is fixedly connected with a poking rod used for poking between gaps of the petal disc, the right end of the fourth rotating shaft stretches into the second transmission cavity and is fixedly connected with a fifth toothed rotating wheel, the upper end and the lower end of the first transmission cavity are provided with symmetrical transmission components used for driving the second rotating shaft to rotate in a linkage power manner, the inner wall of the left end of the first transmission cavity is internally provided with a constant-speed and constant-ratio clutch switching transmission mechanism used for linking the transmission components and the fourth toothed rotating wheel, and the second transmission cavity is internally provided with a power switching mechanism used, the utility model discloses a power switching mechanism, including first transmission chamber, second transmission chamber, power switching mechanism, first pivot, first muscle support machine body, first rotation is connected with on the second transmission chamber right-hand member inner wall rotate be connected with the endocentric first pivot of third pivot, first pivot left end stretches into in the second transmission chamber and fixedly connected with be used for with the third tooth runner that power switching mechanism connects, first pivot right-hand member stretches out the owner muscle and supports the machine body outer and fixedly connected with hexagonal axle, cup joint on the hexagonal axle be used for with interior hexagonal groove grafting's inside and outside hexagonal.

Preferably, the magnetic slotted clamping block assembly comprises clamping blocks slidably connected to two sides of any one bidirectional pushing conical head, an end face, far away from the corresponding bidirectional pushing conical head, of each clamping block is provided with a bite mark, an end face, close to the corresponding bidirectional pushing conical head, of each clamping block is provided with a permanent magnet block in sliding connection and matching with the corresponding bidirectional pushing conical head, and the two corresponding permanent magnet blocks are attracted mutually.

Preferably, the gap between the two adjacent groups of clamping blocks is positioned at the butt joint hole and the width of the gap is larger than the diameter of the steel bar.

As a preferable technical solution, the transmission assembly includes a third transmission cavity disposed in the main tendon support body and having symmetrical upper and lower ends and located at two sides of the first transmission cavity, and a fourth transmission cavity located in the center of the main tendon support body and at the right end of the first transmission cavity and having symmetrical upper and lower ends, the right end of the second rotating shaft extends into the third transmission cavity and is fixedly connected with a first bevel gear, a fifth rotating shaft extending back and forth is rotatably connected in the third transmission cavity, second bevel gears symmetrically arranged on the fifth rotating shaft and front and back and used for meshing with the first bevel gear are fixedly connected on the fifth rotating shaft, a first worm gear is disposed in the middle of the fifth rotating shaft, a sixth rotating shaft is rotatably mounted between the fourth transmission cavity and the third transmission cavity, the sixth rotating shaft extends into the third transmission cavity far from the center side of the main tendon support body and is provided with a first worm for power connection with the first worm gear, the third rotating shaft is rotatably arranged between the first rotating shaft and the second rotating shaft, the third rotating shaft is vertically symmetrical with the third rotating shaft as a symmetry center, the right end of the third rotating shaft extends into the fourth rotating shaft, a second worm is arranged in the second rotating shaft and is used for being in power connection with the second worm, the other end of the seventh rotating shaft extends into the first rotating shaft and is provided with a sixth toothed rotating wheel, and the maximum circumscribed circle of the sixth toothed rotating wheels is the same as the maximum external circle distance corresponding to the fourth toothed rotating wheel.

According to a preferable technical scheme, the same-speed and same-ratio clutch switching transmission mechanism comprises a first sliding groove formed in the inner wall of the left end of the first transmission cavity, a first sliding block is connected in the first sliding groove in a sliding mode, a first pusher embedded in the top of the first sliding groove is connected to the top of the first sliding block in a power connection mode, a fifth transmission cavity is arranged in the first sliding block, an eighth rotating shaft which is symmetrical up and down is installed on the inner wall of the right end of the fifth transmission cavity in a rotating mode, the left end of the eighth rotating shaft extends into the fifth transmission cavity and is fixedly connected with belt wheels, a belt is connected between the two belt wheels in a power connection mode, the right end of the eighth rotating shaft extends out of the first sliding block and is fixedly connected with a seventh toothed rotating wheel, and the two seventh toothed rotating wheels are located at the upper end and the.

Preferably, the power switching mechanism comprises a second sliding groove cut in the inner wall of the rear end of the second transmission cavity, a second sliding block is connected in the second sliding groove in a sliding manner, the front end of the second sliding block extends out of the second sliding groove, a second pusher is embedded in the inner wall of the bottom of the second chute, the tail end of an output rod at the top of the second pusher is fixedly connected with the bottom of the second sliding block, a sixth transmission cavity is arranged in the second sliding block, a ninth rotating shaft which penetrates through the second sliding block from left to right is rotatably connected in the sixth transmission cavity, the two ends of the ninth rotating shaft extend out of the two ends of the second sliding block and are fixedly connected with an eighth toothed rotating wheel which is used for being meshed with the third toothed rotating wheel or the fifth toothed rotating wheel, a third bevel gear positioned in the sixth transmission cavity is arranged on the ninth rotating shaft, a motor is embedded in the inner wall of the bottom of the sixth transmission cavity, and the tail end of the output end of the motor is fixedly connected with a fourth gear rotating wheel which is used for being meshed with the third gear rotating wheel.

As a preferred technical scheme, a controller is arranged in the main rib supporting main body, and the controller is electrically connected with all the motors and the second motor through leads.

2. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the invention of the scheme has simple structure and simple operation, the main rib supporting machine body is adopted, the automatic control supporting arms are adopted on the main rib supporting machine body to fix reinforcing steel bars with different lengths, different shapes and larger mass, the straightness of the main rib can be ensured, the supporting arms at the four corners are mutually separated and correspond to each other, the supporting arms can extend to adjust the width, the thickness and the shape of the main rib, thereby widening the application range, a micro-rotating speed transmission mechanism, a transmission component and a same-speed same-ratio clutch switching transmission mechanism are arranged in the device, the high rotating speed of the motor is changed into a slower low rotating speed, the supporting arms at the upper end and the lower end are separated by symmetrical force, thereby slowly adjusting the angle between the upper end and the lower end, the positions of the main rib at the upper end and the lower end or the formed rectangles are different, the size is smaller, the invention is convenient and practical, reduces the fatigue, the locking block is characterized in that the locking block is provided with a plurality of locking holes, the locking holes are arranged on the same straight line on the upper surface and the lower surface of the annular shell, the locking blocks are arranged in the annular shell, the locking blocks are distributed in the circumferential direction, the locking blocks can be butted with all the steel bars without deviation, the clamping force deviation of certain positions is prevented from being large, the side force deviation is prevented, and the locking blocks are easy to collapse when a building in later period deviates and topples over, the device is also used as a reinforcement cage to be integrally solidified, so that the stability is further improved, in addition, the binding force is screwed on the main reinforcement by arranging the rectangular force transmission plate, the bidirectional pushing conical head, the cylinder shell and the force bearing and transmission assembly, and the corresponding clamping blocks lock the reinforcement by the double-layer thrust mechanism, so that the stability is extremely high, the creativity of the device is extremely high, and the production utilization rate is extremely high.

Drawings

Fig. 1 is a schematic structural view of a main reinforcement support body according to embodiment 1 of the present invention;

FIG. 2 is an enlarged schematic view of C of FIG. 1;

FIG. 3 is a left side view of embodiment 1 of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 1;

fig. 5 is a top view of the ring housing of embodiment 1 of the present invention;

fig. 6 is a schematic view of the internal structure of the annular housing according to embodiment 1 of the present invention;

FIG. 7 is a cross-sectional view B-B of FIG. 6;

FIG. 8 is an axial view of the main tendon support body and the annular housing of embodiment 1 of the present invention in combination;

fig. 9 is a side view structural view of the combination work of the cage bar supporting body and the ring housing according to embodiment 1 of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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