TW486389B - Cartridge dispensing guns - Google Patents

Abstract

A cartridge dispensing gun comprises a pusher mechanism for incrementally displacing a dispensing piston of the cartridge, said pusher mechanism comprising a pusher rod incrementally advanced by actuation of a trigger to tilt and displace a gripper associated with the rod. The gripper is formed by two or more gripper plates mounted in parallel, and each having a passage through which the rod passes. The passage in the gripper plate is bounded at one side of the gripper plate by an arc of part-circular shape to define a part-circular edge which grips the rod when the gripper plate is tilted upon actuation of the trigger and also by a surface which is inclined to the axis of the passage and which contacts the surface of the rod when the gripper plate is tilted to thereby restrict the extent to which the edge can penetrate into the rod and cause damaging scoring of the rod.

Description

486389 V. Description of the invention (l) [Field of the invention] Regarding the first, the type of distribution grab, especially the distribution grab with viscous raw materials. 3 [Previous technology] Contains various viscous products such as adhesives and sealants in various industries. Traditionally, the contents are grabbed out of the cartridge by a glue = used, the cartridge is set on the grab and the rubber grabs one of the main pistons of the cartridge from one of the front ends of the cartridge The contents of the dispensing hole extrude. A delivery compliant with T usually includes a bracket to hold the cassette, and a mechanical device including a trigger for operation to advance the card into the piston pusher of the two plugs. The piston push rod is set at the front end of a push rod 二 = two pulls, and repeats the action to advance gradually. This kind of distribution grabs: the gripper is operated to grip the pusher to cause the pusher to act on the trigger claw Ιη′ί When the trigger is retracted along the pusher, the gripper 彳 < Release the grip engagement position. It is said that the gripper element includes a plate with a round hole for the push rod to grip. When the component is actuated by the trigger, the gripper moves along the edge of the hole and the knife moves the push rod forward. In fact, it is found that when the gripping occurs = the pair is relatively small, and the contact high pressure on the arc length makes the push ΐΐ ;;, the 杆 face produces a sawtooth-like notch, and the number of "to claws can be caused by these sawtooth The notch is stuck or locked, and the thin gripper cannot properly record along the pusher. No. 2, 19 4, 9 8 9 reveals an attempt to overcome this problem. One of the 70 grippers includes a cylindrical shape. Hole for the putter to pass through, the edge of the hole page 5 C: \ Logo-5 \ Five Continents \ PF1091.ptd 486389 5. Description of the invention (2) The shape forms an elliptical arc, (when the grip is raised) The elliptical arc grips the putter to increase the arc length. The contact pressure between the full edge and the putter reduces the dentate notch. The length of the notch may still be hindered during use for a period of time. In practice In use, the elliptical grip edge of the gripper is made with the cylindrical hole and the arched zigzag notch. Both processes are more complicated. [Summary of the Invention] The present invention provides -E distribution gun cartridge The delivery piston is gradually panned, and a trigger is actuated to raise the progressive forward claw. The gripper includes a parallel setting. The channel is used for the push rod to pass through, the channel of the push rod to the segment 'and the grip plate are lonely formed into a semi-circular edge, the semi-circular is held when the lift is raised, and the lift is inclined by tilting When several gripper plates are used in parallel on the axis of the channel, the gripper plate is less interposed between the gripper edge and the push rod to reduce the occurrence of scratches. The advantage is that the gripper plate The meter tube causes the elliptical arc to cause a grip at the grip edge, but still causes the push rod to form a scoring arc longer than the arc between relative grip increases, causing the gripper to return to its original position. The front face has an arched serration. The notch forms the edge of the cylindrical hole, and the gripper with the circle is made of sintering process or casting and is expensive. 'It includes a putter mechanism for the putter mechanism including a putter borrow and move Opposite to the putter, grip several gripper plates. Each gripper plate has a small part of a circular gripper plate whose cross section is substantial. One side of the gripper plate can be triggered by a semicircular edge on the gripper plate. The channel for actuating the gripper plate can also contact the surface of the pusher in the gripper plate. Paul administering the conveying force of the plunger 2 of surface contact between the pusher surface and the contact force between the partial reduction lever to the semi-cylindrical surface corresponding to the surface to the

486389

^ 2 ^, so when the gripper plate is lifted, the surface of the gripper plate is A = adjacent part of the rod, or by a series of mutually inclined plates, the surface of S2, when the Hold the putter when the surface is inclined. # 二 广 二 疋, the grip plate includes two semicircular edges separated by the surface of the grip plate. = The gripper plate provided according to the present invention is used in a cassette-type mechanical device 1 to make a pusher of the device gradually advance by the longitudinal movement of the gripper plate τ lever. The grip plate contains a

^ 接 = 推杆 'A gripping edge is adjacent to the channel, and the claw plate is raised. The guard can hold the pusher, and the surface is adjacent to the channel to hold the claw plate. The sun guard contacts an adjacent surface of the putter, thus limiting the depth that the gripping edge may penetrate the surface of the putter. [Explanation of the Invention] ^, the preferred embodiment is described in detail below with reference to the drawings:

Please refer to the first figure, a cassette-type dispenser according to a preferred embodiment of the present invention. The gun includes a bracket 2 for fixedly setting the cassette, and a pusher mechanism for gradually moving one of the cassettes for distribution. piston. The pusher mechanism includes a pusher 4 which is circular in cross section and can be lifted by the trigger handle 6 and the gripper 8 moves forward relative to the pusher 4. This action is opposite to a compression spring. A biasing force of 10 acts on the gripper 8 to return the gripper 8 to a non-grip position where the axial direction of the putter 4 is a right angle plane. The trigger handle 6 is pivotally disposed on one of the handle structures 12 of the delivery mechanism, and the handle structure 12 is also provided with an unlatching mechanism 14 to frictionally engage the push rod 4 to prevent the push rod 4 from operating during the delivery operation. Move backward. The unlatching 14 releases the bias against a compression spring 5

486389

In order to facilitate the manual retraction of the pusher 4, the cassette (material cartridge) is removed from the bracket 2. The general structure and operation of the cassette-type distribution grab of the present invention are essentially conventional techniques.

The gripper 8 according to the present invention includes a plurality of gripper plates 16 arranged on the push cup 4 in parallel. As shown in the figure, 'the cassette-type distribution grab of the present invention has two grip plates 16', and the number may be two or more. The detailed structure of each grip plate 16 is disclosed in the second to fifth figures. Each grip plate 16 is formed with a cylindrical hole M to form a channel 'for the push rod 4 to slide through when the grip plate 16 is located on a plane perpendicular to the axial direction of the push rod 4. A grip-shaped portion 20 of the grip plate 16 is provided below the cylindrical hole 18 for the grip plate 16 to be combined with the trigger handle 6. When the grip plate 16 is lifted by the trigger handle 6, the grip plate 6 is engaged with the lower half of the edge of the rounded monument by the cylindrical hole 18 on the front side to hold the push. Rod 4. The semi-circular gripping edge is interrupted by a gap or groove 2 2 which is tilted inwardly in the middle, and its preferred position is at both ends of the two solitary 2 4 parts, which can be gripped along the solitary 24 Closing the putter 4 ′ thus causes a grip between two short semi-circular orphans 24 separated by the clearance 22. In fact, the angle of inclination of the arc 24 is about ^^ to 45 degrees (when the diameter of the putter is 8mm, the length of the arc 22 relative to it is 1.5 to 3.0 mm). The clearance 22 provides a semi-cylindrical surface with respect to the diameter of the push rod 4, and the semi-cylindrical surface can contact the surface of the push rod 4 when the grip plate 16 is raised. The semi-cylindrical surface 22 is axially lifted in the axial direction of the hole 18, as shown in the fourth figure. Although the inclination angle is actually determined by the detailed geometric structure of the mechanical device, the lift is generally about 30. degree. When the grip plate 16 is lifted, because of this structure, the relevant semi-circular edge 24 (arc) on either side of the semi-cylindrical relief surface 22 and the semi-cylindrical 486389 are used. 5) The shape of the clearance surface 22 itself makes the grip plate 16 engage the push rod 4. The semi-cylindrical relief surface 22 provides a contact surface that limits the contact pressure applied by the two rounded edges 24 (arcs) and limits the possibility that the two arcs 24 may cut through the pusher 4 and form a zigzag gap. On the rear surface of the grip plate 16, a similar clearance 2 2 a is formed at the rear end edge of the hole 18, which corresponds to the clearance 22 of the front surface, so as to facilitate the lifting operation of the grip plate 16.

Because of the small arc 24 of the grip contact provided between the grip edge of the grip plate 16 and the pusher 4 and also because the depth of the grip edge penetrating into the pusher 4 is reduced, a single grip of the above structure is made. When the claw plate 16 does not have a moderate score on the putter 4, it will not be able to give the pusher 4 sufficient forward thrust, especially if the contents of the cassette have relatively high viscosity will cause the delivery Malfunctioning. Therefore, two or more substantially identical claw plates 16 are disposed on the push rod 4 to operate in parallel, so that the trigger handle 6 is actuated by the respective grip claw plates 丨 6 to respectively hold the push rod 4 to make the claw plate 1 6 act on the push rod 4 together. This operation is disclosed in more detail in the sixth and seventh figures. The sixth figure shows the configuration of the two grip plates 16 before the trigger handle 6 is actuated. As shown in the figure, the two gripper plates 16 = opposite ends are placed at the end of the compression spring 10, the compression spring 10 engages the front surface of the beautiful gripper plate and biases the two gripper plates backward, so The upper half of the rear grip claw plate is engaged with a junction 12a on the handle structure 12. One of the roller-shaped actuating cams 30 on the trigger handle 6 is adjacent to the rear surface of the handle-shaped portion 20 of the rear grip plate i 6. At this time, the plane of the two gripping plates 16 is perpendicular to the axial direction of the push rod 4, so neither of the two plates engages the push rod 4. The seventh figure reveals the situation after the trigger handle 6 is actuated. The actuating cam 30 of the trigger handle 6 is moved forward so that

486389 V. Description of the invention (6) The handle portion 2 of the rear grip plate 16 is moved forward, so the front grip plate 16 and the rear grip plate are directly engaged to make the handle portion 2 of the front grip plate 16 〇 It also moves forward, because the upper end of the rear surface of the rear grip plate is engaged with the junction 2a of the handle structure 2 and the two grip plates 16 are lifted up. As shown in the seventh figure, when the trigger handle 6 is actuated, the two grip plates 16 are gripped on the push rod 4 respectively. It is worth noting that in addition to providing the bias voltage required for the operation of the gripper 8, the 5 ′ 5 压 thin spring 10 also maintains the connection of two or more gripper-forming plates 丨 6 and ensures its consistency. From the above-mentioned geometric system structure, when the two gripper plates 6 and 6 are lifted up, the sliding between the two gripper plates 16 on the plane of the contact surface between the two gripper plates 16 is clearly disclosed in FIG. 7. To facilitate smooth operation, a lubricant can be applied between the contact surfaces of the two gripper plates 16. This can easily be achieved by using a durable lubricant coating such as Teflon PTFE. In order to increase the distribution of the gripping force between the gripper 8 and the pusher 4, a grip between the compression spring 10 and the handle structure 2 on the pusher 4 2a or more is required Claw plate 16. 』Again: It may be necessary to note that although the score of the putter may still be due to the interaction between the grip edge portion 24 (arc) of the claw plate 16 and the putter 4, ^ =, so the putter The score of 4 is limited by the depth of the circular relief surface 22 caused by the relatively small arc length, and its sawing m when operating. In order to suppress the mechanism, the clearance 22 of the above embodiment provides a semi-cylindrical watch. It supports the adjacent part of the push rod 4 at the beginning. 7 change, when the gripper plate is tilted by a series of mutually inclined flat areas; J said, the gap 22 field is provided similarly-

486389 V. Description of the invention (7) The bracket can support the adjacent position of the push rod 4 when the grip plate is raised. In order to provide the necessary lift, instead of one of the clearances 22a formed on the rear surface of the gripper plate, it is incorporated into the clearance 22 of the front surface of the gripper plate which corresponds to the opposite direction. Angle around the edge to achieve the same effect as the clearance 22 of the front surface of the grip plate. The grip plate 16 is made of a relatively simple die with a relatively low cost, and uses appropriately heat-treated broken steel. Although the present invention has been disclosed with the aforementioned preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. The scope of protection shall be determined by the scope of the attached patent application.

The patent specification of the present invention > The scope of subsequent patent applications except for the content requirements, the "comprise" and its verb variations mean to include only a specific thing or a collection of specific things or steps' does not exclude the inclusion of any other specific A collection of things or specific things. X

C: \ Logo-5 \ Five Continents \ PF1091.ptd Page 11 486389

[Illustration of the drawings], Fig. 1 · Side view of the cassette-type distribution grab of the preferred embodiment of the present invention. FIG. 2 is a front view of a grip plate of a gripper of a cassette type dispensing gun according to the present invention. Fig. 3 · A cross-sectional view along line A-A of Fig. 2 of the present invention. Figure 4: An enlarged schematic view of part B of Figure 3 of the present invention. FIG. 5 is a perspective view of a grip plate of a cassette-type distribution grab grip of the present invention. Figure 6: An enlarged schematic view of the gripper plate of the present invention before one of the trigger handles of the cassette delivery grab is activated. Zoom-in diagram # Figure 7 · The gripper plate of the present invention grips the push rod after the trigger handle of Figure 6 of the present invention [illustration of the drawing number] 4 push rod 1 0 compression spring 14 unlatching 1 8 Cylindrical hole 24 Arc 6 Trigger handle 1 2 Handle structure 1 5 Compression spring 2 0 Handle 30 Actuating cam 2 Bracket 8 Grip 12a Junction 16 Grip plate 22 Release

Claims (1)

4T ^ m — 90104293 6. Scope of patent application 1. A cassette-type distribution grab, which includes: a putter mechanism for progressive Jiang Wei μ Shi Yue De Zhuang Wu 4 people into the private movement of a cassette distribution piston The push maple maple I contains a push cake, and ^, p. ^ The hunting is caused by the lifting and moving of a trigger to make ^ Jr ^ ^ V ^ ^ ^ dry, and at least part of the cross section of the rod夂 # & It ’s a nuclear claw containing several gripper plates arranged in parallel, t ", i ΐtwo links for the putter to pass through, the gripper plate is transported by a circular arc and A circular arc bordering one side of the gripper plate when the gripper plate is turned over by the trigger " concealed $ _ main m π, true ^ can be formed to form a round shape that grips the pusher Edge, and when the channel jaw plate J of the grip plate rises, it is bounded on one side of the grip plate by being inclined to the axis of the channel and contacting the surface of the push plate. 2. According to the cassette-type distribution grab described by worker i in the scope of patent application, the surface is the surface of a half cylindrical surface relative to the push rod. ^ ^ The surface can support the push rod when the grip plate is raised. Phase 3. The surface of the card E-type distribution according to item 1 of the patent application scope is formed by a series of inclined planes with respect to each other, so the square person lives adjacent parts of the putter. Λ & Can be used 4. According to the cassette type of the patent application scope item 1, 2 or 3, each gripper plate has two semi-circular edges that are opened. Separated by μ clothing surface 5. According to the card described in the scope of patent application No. 1, 2 or 3! The gripper is arranged in face-to-face contact, and a durable ^ slip ^ grab 'is applied to one of the contact surfaces. When the gripper plate is lifted, ^, there is less sliding between the contact surfaces. i ^ between 486389 90104293 —---- Case No. 6. Scope of patent application b. A gripper plate uses a pusher mechanism of a cassette-type distribution grab. According to the lifting and longitudinal movement of the gripper plate, one of the mechanical devices advances the piston to move forward. The gripper plate includes a The channel receives the push rod, a gripping edge is adjacent to the channel and the gripping remote push rod is operated when the grip plate is raised, and a surface is adjacent to the channel to contact the push rod when the grip plate is raised The abutment surface limits the depth to which the gripping edge may penetrate into the surface of the putter. , 7. The gripper plate according to item 6 of the scope of the patent application, wherein the gripper plate is used in a putter mechanism having a solid round y blade face and the gripper plate The surface is substantially semi-cylindrical. The semi-cylindrical diameter corresponds to the diameter of the putter. 8 The grip plate as described in item 6 or 7 of the patent scope, wherein the gripping origin extends on the two foxes and is the area I of the grip plate. 9 The gripper plate according to item 1 of the declared patent scope, wherein the gripper plate is made of a carbon steel mold printing process and a heat treatment. 10. The gripper plate according to item 1 of the claim range, wherein the surface of the gripper plate to the side of t has a lubricant coating, so that two identical grippers that operate in parallel on the putter Allow sliding between boards.