KR20070096733A - Connecting device for a windshield wiper having no support frame and hook type windshield wiper arm - Google Patents

Abstract

A connecting device for a windshield wiper having no support frame and hook type windshield wiper arm is provided to allow a sliding cover to be separated easily from a saddle hood by inserting two insert protrusions into two insert holes. A connecting device for a windshield wiper comprises a chassis(70) made of a rigid material, a saddle hood(80) having a hollow hexahedral structure, a sliding cover(90) made of plastic material and a connector(100) having a hexahedral structure. The chassis(70) includes a bottom panel(71), a left panel(72) and a right panel(73) parallel to the left panel in the length direction thereof. The saddle hood(80) includes a left hood panel(81), a right hood panel(82), a rear hood panel(83) and a straddle panel(84), wherein the left and right hood panels are symmetrically aligned in parallel to each other. The sliding cover(90) includes a left cover plate(91), a right cover plate(92), a front cover plate(93), a top cover plate(94), a pair of sliding rails(95) and a pair of pressing tongues(97), wherein the sliding rails are parallel to each other in the length direction thereof. The connector(100) includes a left plate(101) and a right plate(102), which are parallel to each other.

Description

CONNECTING DEVICE FOR A WINDSHIELD WIPER HAVING NO SUPPORT FRAME AND HOOK TYPE WINDSHIELD WIPER ARM}

1 is an enlarged perspective view of a conventional coupling device used in a frameless support wiper having a hooked wiper arm;

FIG. 2 is a sectional view taken along line 2-2 of FIG.

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

4 is a sectional view taken along line 4-4 of FIG.

5 is an assembled perspective view of a conventional connecting device used for a frameless support wiper having a hooked wiper arm.

FIG. 6 is a sectional view taken along line 6-6 of FIG.

Figure 7 is an operation of a conventional connector used for a frameless support wiper having a hooked wiper arm.

8 is a schematic perspective view of a conventional hook-type wiper arm with a conventional connector.

Fig. 9 is a sectional view taken along line 9-9 of Fig. 8;

Fig. 10 is a schematic perspective view of a conventional connection device used for a frameless support wiper having a hooked wiper arm.

10A is an operation of a conventional hook-type wiper arm.

Figure 11 is a schematic perspective view of a conventional connecting device used for a frameless support wiper having a hooked wiper arm.

Figure 12 illustrates the removal and mounting of a conventional connector for use in a frameless support wiper having a hooked wiper arm.

Fig. 13 is a sectional view of a conventional connecting device used for a frameless support wiper.

FIG. 14 is a sectional view taken along line 14-14 of FIG.

Figure 15 shows schematically a frame hood and a base in a conventional connection of a frameless support wiper.

FIG. 16 is another schematic illustration of a frame hood and base in a conventional connection of a frameless support wiper; FIG.

Figure 17 is a perspective view of a damaged frame hood in a conventional connection of a frameless support wiper.

18 is an enlarged perspective view of the present invention.

FIG. 19 is a sectional view taken along line 19-19 of FIG. 18;

20 is a sectional view taken along line 20-20 of FIG.

FIG. 21 is a sectional view taken along line 21-21 of FIG.

FIG. 22 is a sectional view taken along line 22-22 of FIG. 18;

FIG. 23 is a sectional view taken along line 23-23 of FIG.

FIG. 24 is a sectional view taken along line 24-24 of FIG.

FIG. 25 is a sectional view taken along line 25-25 of FIG.

FIG. 26 is a sectional view taken along line 26-26 of FIG. 18;

Figure 27 is an operation of the present invention.

FIG. 28 is a sectional view taken along line 28-28 of FIG. 27;

29 is an assembled perspective view of the present invention.

30 is a sectional view taken along line 30-30 of FIG.

Figure 31 is a left side view of the present invention.

Figure 32 is a cross sectional view of the plane of the invention in combination;

FIG. 33 is a sectional view taken along line 33-33 of FIG.

Figure 34 illustrates a first application of the present invention having a hooked wiper arm.

Figure 35 shows a second application of the invention with a hooked wiper arm.

Figure 36 illustrates the removal and mounting of the present invention with a hooked wiper arm.

FIG. 37 is a sectional view taken along line 37-37 of FIG. 32;

FIG. 38 is an operation diagram of FIG. 37; FIG.

Figure 39 illustrates the present invention with a connector.

40 is a sectional view taken along line 40-40 of FIG.

Figure 41 illustrates the removal and mounting of the present invention with a hooked wiper arm.

Figure 42 is a cross sectional view showing a saddle hood and a chassis of the present invention.

[Explanation of symbols on the main parts of the drawings]

72: left panel 73: right panel

80: saddle hood 84: straddle panel

90: sliding cover 93, 94: cover plate

95: sliding rail 96: hook

103; Main board

The present invention relates to a connecting device for a windshield wiper without a support frame and a hooked windshield wiper arm, and more particularly to a special connecting device exclusively used for a frameless support wiper and a hooked wiper arm. All replacement procedures for frameless support wipers and hooked wiper arms that not only require the help of others but eliminate any interference can be completed quickly and easily by only one person.

Today, windshield wipers used in most vehicles are classified into two types: "frame support wipers" and "frameless support wipers," which are "mass support wipers" that are used for mass in all older vehicles that have been open for a long time. Has been used as a mass scale; The "frameless support wiper" has recently been applied to new vehicles as a whole to gradually replace the old "frame support wiper" due to its good frictional effect and long-term durability, as well as environmental protection to reduce the material of the support frame. It is used. In addition, most head shapes of the wiper arms that are coupled to the "frame support wiper" take the form of hooks. US Pat. Nos. 6.640.380, 6.591.445, 6.539.576, 6.332.236, 6.161.249, 5.937.474, and 5.611.103. As disclosed, in order to combine the "frame-type support wiper" with hook-type wiper arms into a unitary unit in order to obtain the expected frictional effect on the windshield, a special connector of an integral plastic extrusion body must be used.

Also, since the structure of the "frameless support wiper" is completely different from the structure of the "frame support wiper", the head shape of the wiper arm coupled to the "frame support wiper" is different from the wiper arm. do. As well as US Patent Publication Nos. 2004/0216260, 2004/0010882, 2004/0211021, 2005/0011033, 2004/0025280, 2004/0098821; U.S. Pat. Nos. 6.75.432, 6.6.799.348, 6.6.94.639, 6.974.195, 6.1010.556, 6.43.889, 6.67.68.419, As disclosed in 6.687.948, 6.682.581, 6.68.926, and 6.610.244, the exclusive connection device for each head type of the wiper arm is referred to as the "frameless support wiper". It must be designed to be combined with ". According to all these patent specifications, the exclusive connection must be applied for certain other types of wiper arms.

However, many consumers who own the old vehicle with the "framed support wiper" and want to replace it with "frameless support wipers" do not get what they want because the "frameless support wiper" This is because their vehicles do not have adequately exclusive connectors for traditional hooked wiper arms to join, and consumers who insist on replacing it with a "frameless support wiper" should discard the existing hooked wiper arm, At the expense of replacing the exclusive head form of the wiper arm suitable for the "frameless support wiper", some factories not only relieve the economic burden on the consumer, but also remedy the disadvantages described above. Special frameless combination of frameless support wipers with conventional hook type wiper arms 1 to 7 and 16, the structure of this connecting device comprises a base 20, a frame hood 30, a pivotable cover 40 and a connector 50. The base 20 formed by pressing a hard metal includes a pair of horizontal clipping grooves 21, which grooves face each other in the longitudinal direction, and are arranged in parallel and spaced apart from the bottom of both panels. A pair of vertical left panel 23 and right panel 24, which are symmetrical, parallel and identical in shape to each other, stands up on both edges of the upper surface 22 connected with the two clipping grooves 21. Also, the horizontal The transversal fixation spindle 25 is transversely spanned to the left panel 23 and the right panel 24. By the clipping groove 21, the base 20 of the frameless support wiper 10 It can be fixedly clipped onto the elastic metal strip 11. The frame hood 30, which is an integrally extruded body made of plastic material, comprises a pair of vertical left hood panels 31 and right hood panels 32; the left and right hood panels are parallel to each other and are identical. It is shaped and upright on both sides. For the left and right hood panels 31, 32, the horizontal crosslinking spindle 33 is transversely over its front end; The vertical coupling plate 34 stands up at its rear end; A pair of left insertion grooves and right insertion grooves 36, which are symmetrical and parallel to each other, are formed spaced inwardly from the middle portion thereof; The left insertion groove and the right insertion groove are opened to face downward and have the same shape. A pair of left baffle lumps 37 and right baffle lumps 38 are provided on the inner side at the upper edges of the left insertion groove 35 and the right insertion groove 36. In addition, the two pairs of snap coupling nose portions 39 correspond to the opening directions of the left insertion groove 35 and the right insertion groove 36, and the bottom of the left hood panel 31 and the right hood panel 32. It is installed on the inside at the edge. The base 20 having the left panel 23 and the right panel 24 is frame hooded by the left insertion grooves 35 and the right insertion grooves 36 as well as the four snap engagement noses 39. It is fixedly inserted inside the 30 (as shown in FIG. 16). The pivotable cover 40 freely pivoted onto the cover on the frame hood 30 has a tubular groove 41 disposed on one short end and a pair of elastic uprights on the left and right panels on the other short end. And snap ring 42. By engaging the tubular groove 41 and the engaging spindle 33 on a frame hood 30, the pivotable cover 40 is provided with the engaging spindle (as shown in FIGS. 6A and 6B). In the frame hood 30 having the back 33, it is lifted up and down over the top surface of the front part. Connector 50, which is an integrally extruded body made of plastic material, similar to the conventional connector of the "frame support wiper" to be inserted between the left panel 23 and the right panel 24 of the base 20. Comprises a pair of left and right plates 51 and symmetrical, parallel and identical in shape, the left and right plates being horizontal body plates 53 which span over them to form an integral body. The branches are erected spaced apart on both sides thereof. The pair of tightening noses 54 are arranged side by side inside the front ends of the left and right plates 51 and 52 to form a space for receiving the hook head 61 of the hooked wiper arm 60. Spaced apart. In addition, horizontally disposed in the middle portion of the left side plate 51 and the right side plate 52 to be coupled to the fixed spindle 25 so that it can be pivoted at a defined angle inside the base 20 itself. The body plate 53 is formed with a round groove 55 facing downward.

6 to 9 show the mounting assembly operation of the connecting device used in the traditional hook type wiper arm 60. First, one finger is placed on the pivotable cover 40 to deform two elastic snap engagement rings 42 to release clipping from the left insertion groove 35 and the right insertion groove 36 (shown in FIG. 6B). To exert strength. By means of the engaging spindle 33 which is the lever support means, the pivotable cover 40 can be lifted freely from the frame hood 30 (shown in Fig. 7D). Subsequently, the hook head 61 of the hook-type wiper arm 60 is inserted between the left side plate 51 and the right side plate 52 of the connector 50; The force is continuously applied until it is fully seated in the space between the front edge of the horizontal body plate 53 and the two tightening noses 54 to complete the fastening (Fig. 7E, as well as Fig. 7E). 8 and shown in FIG. 9). Finally, the pivotable cover 40 is pivoted again to snap onto the top surface of the frame hood 30, thereby completing the mounting assembly operation.

Conventional linking devices as described above can achieve the purpose of coupling a "frameless support wiper" to the traditional hook head of a hooked wiper arm, but there are several drawbacks as follows.

1. In Figs. 10-12, during the operation of the frameless support wiper 10, the conventional connecting device is always interrupted by the pivotable cover 40, so that it is not smooth. This is because the hooked wiper arm 60 must be in an upright position each time the frameless support wiper 10 is replaced. That is, in order to be erected by the elastic collapsible segmentation means 62 of the lever support to separate the frameless support wiper 10 away from the windshield G during the replacement operation (shown in FIG. 11), An upward force (shown in FIG. 10) is applied horizontally on the hooked wiper arm 60 on the windshield G. Thus, the frame hood 30 is always in an upright state regardless of the mounting operation or detachment operation; The engaging spindle 33 in the top position can freely pivot the pivotable cover 40 downwards and interferes with the hook head 61 (shown in phantom in FIG. 12H). Thus, during the detaching operation or the mounting operation, the hook head 61 collides to damage the pivotable cover (shown in Fig. 12I), which makes the work cumbersome. In order to avoid such a phenomenon as described above, a cumbersome helper for temporarily supporting the pivotable cover is needed (shown in Fig. 12J). This is a hindrance to the designer's intentions.

2. In Figures 9, 10A, 13, and 14, when the hooked wiper arm 60 pivots back and forth on the windshield G, the final force F will be generated. The hook head 61 will continually strike and press against the two tightening noses 54 on the connector 50 under the action of the vertical component force F1 (shown in FIG. 10A). Finally, the hook head 61 will destroy the connector 5 after a time period of setting or the number of turns of setting of the hook-type wiper arm 60 (this operation is shown in Figs. 9A to 9D). ). The reason is that the two left hood panel 31 and the right hood panel 32 (to accommodate the displacement of the two deformed tightening nose portions 54 by the impact and the press from the hook head 61). This is because there is a gap δ between the two left plates 51 and the right plate 52 having the one shown in FIG. Destruction of the hook head 61 from the connector 50 is a difficulty hidden during safe driving of the vehicle. This is another major drawback beyond the original designer's safety considerations.

3. In FIGS. 3 and 15-17, each of the engaging spindle 33 and engaging plate 34 is adapted to facilitate lifting and lowering of the pivotable cover 40 itself. Are arranged before and after respectively. A round cross section with a small area of the engaging spindle 33 and a square cross section with a large area of the engaging plate 34 cause them to have different stress strengths (shown in FIG. 3). The two snap engagement nose portions 39 on the left hood panel 31 and the right hood panel 32 are exposed to impact forces and pressing forces from the left panel 23 and the right panel 24 (shown in Fig. 16E). ), It expands in the outward direction (shown in Fig. 16F). On the other hand, the coupling spindle 33 and the coupling plate 34 withstand the same axial stress f from the left hood panel 31 and the right hood panel 32 due to outward expansion pressure in the middle. will be. Thus, one end of the coupling spindle having a small cross-sectional area will be destroyed from the left hood panel 31 and the right hood panel 32 (shown in FIG. 17), thereby damaging the frame hood 30. FIG. The above situation always occurs during the mounting process, so the yield is low. This is another major drawback beyond the original designer's intentions.

It is a primary object of the present invention to provide a connection device for a windshield that does not have a support frame and hook-type windshield wiper arms and includes a chassis and saddle hood, a sliding cover and a connector. By tightening the two insertion projections on the sliding rail with two insertion holes on the left panel and the right panel of the chassis, the sliding cover can quickly slide the saddle hood in a tightening fixing position that cannot be separated from each other. Therefore, the connector does not need the help of others to support the sliding cover during the detachment and mounting of the hook head on the hook-type wiper arm, and also eliminates the interference of impact caused by the sliding back of the sliding cover. Only one person can complete the process quickly and easily.

Another object of the present invention is to provide a connection device for a windshield that does not have a support frame and hook-type windshield wiper arms. Two tightening noses on the left and right side plates of the connector by means of two pressurized tongues on the sliding cover filling the gap between the right and left side panels on the chassis as well as the gap between the left and left side panels on the chassis. The shape is prevented from being displaced outwards, thereby ensuring that it has a resistance against the force of the vertical component and preventing the hooked wiper arm from detaching from the connector during its pivoting movement. Thus, 100% stringent standards of safety prerequisites can be achieved under the operation of frameless support wipers and hooked wiper arms.

Another object of the present invention is to provide a connecting device for a windshield that does not have a support frame and hook-type windshield wiper arms. The left hood panel and the right hood panel on the saddle hood are spanned and joined by a horizontal straddle panel and a vertical rear hood panel of the same rectangular cross-sectional area having an equivalent area. Inserting the Saddle Hood into the Chassis The straddle panel and the rear hood panel are equivalent due to the four snap-in nose portions on the left hood panel and the right hood panel that are impacted and pressed by the left and right panels on the chassis during the mounting process. Due to its same rectangular cross-sectional area with an area of s it can be evenly exposed to axial stress. Accordingly, breakage damage of the straddle panel and the rear hood panel of the left hood panel and the right hood panel does not occur. Accordingly, the overall yield of the connecting device can be increased, and damage to the saddle hood by the surrounding environment can be prevented.

18 to 26, in the windshield connecting device of the present invention without the supporting frame and the hook-type windshield wiper arm, the chassis 70 pressurized with a hard material includes a bottom panel 71 and a left panel. 72 and right panel 73; In order to fix the chassis 70 on the elastic metal strip 11 of the frameless support wiper 10 through two rivets (not shown), the bottom panel 71 has two fixing holes ( 711 is penetrated; A pair of vertical left panel 72 and right panel 73 which are symmetrical, parallel and identical in shape to each other are arranged side by side along the two long sides of the bottom panel over which the horizontal transverse fixing spindle 74 is spanned. ; Two insertion holes 76 are formed in the pair of symmetrical parallel front panels 75 disposed on the two front ends of the left panel 72 and the right panel 73; Two snap-in grooves 78 are respectively formed on two upper sides of a pair of symmetrical parallel vertically projecting panels 77 extending on two front ends of the front panel 75; On the two long engagement sides of the bottom panel 71 having the left panel 72 and the right panel 73, two pairs of fastening grooves 79 are formed, respectively.

Saddle hood 80, an integrally extruded hollow cuboid made of a plastic material, includes a left hood panel 81, a right hood panel 82, a rear hood panel 83, and a straddle panel 84. Includes; The left hood panel 81 and the right hood panel 82 are a pair of vertical panels that are symmetrical, parallel and identical in shape to each other, disposed side by side in the longitudinal direction; A pair of horizontal left and right slide grooves 85 and right slide grooves 86 formed side by side up and down by two parallel arrays of protrusions are formed at two corresponding inner portions in the middle portion thereof; The pair of left ceiling projections 87 and right ceiling projections 88 protrude inwards on the corresponding two upper surfaces at their middle portions; Two pairs of snap engagement noses 89 are arranged in two corresponding inner portions adjacent the bottom edge to engage with the two pairs of tightening grooves 79; The vertical rear hood panel (83) is coupled with the two rear ends of the right hood panel (82) and the left hood panel (81) to form an integral continuous closed area; The horizontal straddle panel 84 is coupled across two front ends of the right hood panel 82 and the left hood panel 81 to form an open mouthpiece.

The sliding cover 90, which is an integrally extruded body made of a plastic material, has a left cover plate 91, a right cover plate 92, a front cover plate 93, an upper cover plate 94, and a pair A sliding rail 95 and a pair of pressurized tongue portions 97; The left cover plate 91 and the right cover plate 92 are a pair of vertical panels that are symmetrical, parallel, and identical in shape to each other, and the panels are arranged side by side in the longitudinal direction, and the front cover plate 93 and the upper cover. Having a front edge and an upper edge joined to each other by the plate 94; A pair of horizontal slide rails, symmetrical and parallel to each other, are arranged side by side in the longitudinal direction and have a right cover plate with respective insertion protrusions 951 provided near each distal free end of the slide rail 95. 92 extends rearward from the corresponding two inner portions at the bottom of the left cover plate 91; On the inner side of the upper cover plate 94, a pair of fastening hooks 96, which are symmetrical, parallel and elastic with each other, are arranged side by side vertically and spaced apart, and at each front fixed end of the sliding rail 95 Extends downward on two medial portions; A pair of pressurized tongue portions 97, which are symmetrical and parallel to each other, are vertically spaced apart side by side and extend downward from an inner side adjacent to the rear edge of the upper cover plate 94; A pair of opposite arrows 99 are displayed on the upper surface of the upper cover plate 94 to indicate the sliding direction; In order to increase the support friction of the finger, a pair of anti-skid gratings 98 are formed on the outer surfaces of the right cover plate 92 and the left cover plate 91, respectively.

The connector 100, which is an integrally extruded cuboid made of plastic material, comprises a pair of vertical left and right plates 102 and symmetrical, parallel and identical in shape; These plates are arranged side by side in the longitudinal direction and have an upper edge coupled with a horizontal body plate 103 to form an integral body; The inner side of each front end of the left side plate 101 and the right side plate 102 is formed together with the main body plate 103 to form a receiving space for accommodating the hook head 61 of the hook type wiper arm 60. A pair of tightening nose portions 104 symmetric with each other are arranged side by side; Rounded grooves 105 opened downward are formed at the front ends of the main body plate 103 disposed at the middle of the left side plate 101 and the right side plate 102; By means of the round groove 105 which inserts the fixed spindle 74 directly into the chassis 70, the connector 100 can be freely pivoted within a defined angle.

18, 27 to 33, and 34 show the mounting method and steps of the present invention. First, two parallel sliding rails 95 on the sliding cover 90 are mounted on the left sliding groove 85 on the saddle hood 80 and the sliding cover 90 can be inserted into each other in the saddle hood 80. After aligning to the right sliding groove 86, it is pressed by applying a fine force. Subsequently, in order to insert into the chassis 70, the bottom side of the saddle hood 80 and the upper side of the chassis 70 are aligned and pressed, and then slide downward. During this process, the four snap engagement noses 89 on the saddle hood 80 and the left hood panel 81 collide from the left panel 72 and the right panel 73 on the rigid chassis 70. And due to the pressing force, it will expand slightly outward, and then insert the saddle hoods 80 into each other (as shown in FIG. 42) in the chassis 70 and then downward until the tightening snap is completed. Make it slip. Finally, the opening of the round groove 105 on the connector 100 and the fixed spindle 74 on the chassis 70 are aligned, and a downward force is applied to the round groove 105 to fix the fixed spindle 74. The mounting process can be completed by inserting in the. At this moment, the sliding cover 90 can freely slide freely along the left sliding groove 85 and the right sliding groove 86 by the two sliding rails 95. With the sound of snapping together, by pulling up to the two insertion protrusions 951 on the sliding rail 95 fastened to the two insertion holes 76 on the left panel 72 and the right panel 73, The slip cover 90 is at the furthest distance from the saddle hood 80 (shown in Figures 27 and 28). The sliding cover 90 is pulled close to the two fastening hooks 96 having elasticity, which are fastened to the two snap engagement grooves 78 on the vertical protruding panel 77, accompanied by the sound of snapping. ) Is integrated with the saddle hood 80 to form an integral body (shown in FIGS. 29 and 30).

27, 28, 30, 34, and 40, which illustrate the replacement of the frameless support wiper 10, the windshield in a horizontal manner, similar to the conventional windshield wiper described in the replacement process of the wiper. A upward force is applied to the hook-type wiper arm 60 pressed against (G) (shown in FIG. 34), and the spherical shape of the spherical glass wiper 10 can be removed from the windshield so as to start removing and replacing the frameless wiper 10. FIG. It is lifted to an upright position by elastic, collapsible segmentation means 62 as a lever restraining " frameless support wiper " (Fig. 35). Therefore, the saddle hood 80 is always in the upright position regardless of the detaching operation and the mounting operation. The steps of removal or installation are very easy as follows. First, the sliding cover 90 is held above the saddle hood 80 so that the insertion projections 951 cannot be dropped downwards by tightening the insertion protrusions 951 to each other in the snap engagement grooves 78, so that the snap engagement grooves are accompanied by a snap engagement sound. The sliding cover 90 is pulled from the saddle hood 80 to the two insertion protrusions 951 on the sliding rail 95 fastened to 78 (shown in Figs. 27, 28 and 36M). In the meantime, due to the pressurized tongue 97 on the sliding cover 90 which releases the tightening of the left side plate 101 and the right side plate 102, the left side plate 101 and the chassis having the right side plate 102 are formed. A gap δ is formed between the front panel 75 on 70 (shown in FIG. 38). Thus, the hook head 61 can be stably inserted into the connector 100 without interference (shown in FIGS. 36N as well as FIGS. 39 and 40, respectively). Finally, the sliding cover 90 is pressed against the saddle hood 80 up to the resilient fastening hook 96 which is tightened with the snap engagement groove 78 on the chassis 70 with the snapping sound. (Shown in FIGS. 30 and 36O). In the meantime, in order to block the two tightening noses 104 on the front end of the connector 100 from the outward displacement (shown in FIG. 37), the hook-type wiper arm 60 is also turned during the swing operation. In order to ensure a state that cannot be separated from the connector 100, the pressurized tongue 97 on the sliding cover 90 is provided with a left side plate 101 having a right side plate 102 and a front panel on the chassis 70. Rebound to fill the gap δ between 75.

In Fig. 41, during the disassembly and mounting of the replacement operation, all replacement processing can be easily and quickly completed by only one person without any help from others. In addition, inadvertent fall of the conventional pivotable cover 40 not only prevents collision interference with the hook head 61, but also damage to other parts.

21 and 42, the straddle panel 84 and the rear hood panel 83 are left hood panel 81 during the insertion mounting process of the saddle hood 80 into the chassis 70 in the present invention. And axial stress f caused by the displacement to the outside of the right hood panel 82 (shown in FIG. 42). This axial stress f is uniformly distributed in the straddle panel 84 and the rear hood panel 83 because of the same rectangular cross-sectional area with an equivalent area. Therefore, breakage damage which has occurred in the conventional connecting device due to non-uniform stress and unequal area can be avoided.

The present invention enables fast sliding away from the saddle hood tightened to a fixed position whereby the sliding cover cannot be separated from each other by tightening the two insertion projections on the sliding rail to the two insertion holes on the left panel and the right panel of the chassis. . Therefore, during the detachment and mounting of the hook head on the hook-type wiper arm with the connector, not only need any help from others to support the sliding cover, but also the impact interference caused by the sliding back of the sliding cover. It can be removed and all processes can be completed quickly and easily with just one person.

Claims (2)

In the connecting device for the windshield without a support frame and hook-type windshield wiper arm, The chassis pressurized with hard material includes a bottom panel, a left panel and a right panel; Two fixing holes penetrate the bottom panel; A pair of vertical left and right panels symmetrical, parallel and identical in shape to each other are arranged side by side spaced apart longitudinally along the two long sides of the floor panel across a horizontal transverse fixing spindle; Two insertion holes are formed in the pair of symmetrical parallel front panels disposed on the two front ends of the left panel and the right panel; Two snap-in grooves are respectively formed on two upper sides of a pair of symmetrical parallel vertically projecting panels extending on two front ends of the front panel; On the two long joining sides of the bottom panel having a left panel and a right panel, two pairs of fastening grooves are formed, respectively, The saddle hood, an integrally extruded hollow cuboid made of plastic material, includes a left hood panel, a right hood panel, a rear hood panel, and a straddle panel; The left hood panel and the right hood panel are a pair of vertical panels that are symmetrical, parallel and identical in shape to each other, disposed side by side in the longitudinal direction; A pair of horizontal left and right slide grooves formed side by side up and down by two parallel arrays of some projections are formed at two corresponding inner portions at their middle portions; The pair of left and right ceiling projections protrude inward on the corresponding two upper surfaces at their middle portions; Two pairs of snap engagement noses are disposed in two corresponding inner portions adjacent the bottom edge to engage the two pairs of tightening grooves; The vertical rear hood panel is coupled with two rear ends of the right hood panel and the left hood panel to form an integral continuous closed area; The horizontal straddle panel is joined across two front ends of the right hood panel and the left hood panel to form an open mouthpiece, The sliding cover, which is an integrally extruded body made of plastic material, includes a left cover plate, a right cover plate, a front cover plate, an upper cover plate, a pair of sliding rails, and a pair of pressurized tongues; The left cover plate and the right cover plate are a pair of vertical panels that are symmetrical, parallel and identical in shape to each other, and the panels are arranged side by side in the longitudinal direction and are joined to each other by a front cover plate and an upper cover plate, and Has an upper edge; A pair of horizontal slide rails, symmetrical and parallel to each other, are arranged side by side in the longitudinal direction and correspond at the bottom of the right cover plate and the left cover plate with respective insertion protrusions installed near each distal free end of the slide rail. Extends rearwardly at two inner sides of the; On the inner side of the upper cover plate, a pair of elastic fastening hooks, which are symmetrical and parallel to each other, are disposed vertically spaced apart and extend downward on corresponding two inner portions at each front fixed end of the sliding rail; A pair of pressurized tongues symmetrical and parallel to each other are arranged vertically spaced apart side by side, extending downward from the inner side adjacent to the rear edge of the upper cover plate, The connectors, which are integrally extruded cuboids made of plastic material, comprise a pair of vertical left and right plates which are symmetrical, parallel and identical in shape; These plates are arranged side by side in the longitudinal direction and have an upper edge coupled with a horizontal body plate to form an integral body; A pair of tightening nose portions which are symmetrical to each other are arranged side by side on the inner side of each front end of the left side plate and the right side plate to form a receiving space together with the main body plate for receiving the hook head of the hook-type wiper arm; The front end of the main body plate disposed in the middle portion of the left and right side plate is connected to the connecting device, characterized in that the downward groove is formed. The connecting device according to claim 1, wherein a direction arrow is displayed on an upper surface of the upper plate of the sliding cover, and an anti-slip grating is formed on the outer surfaces of the right cover plate and the left cover plate, respectively.

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