JP2007253924A - Device for exclusively connecting frame-less wiper and hook type wiper arm to each other - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for exclusively connecting a frame-less wiper and a hook type wiper arm to each other. <P>SOLUTION: The device for exclusively connecting a frame-less wiper and a hook type frame arm to each other is structured of a bottom base body 7, a slide base cover 80, a slide lid 90 and a connector 100. In the exchanging work by removing/fixing the wiper from/to the hook type wiper arm, two engagement fixing flanges on a pair of slide rails 95 of the slide lid and two recessed fitting parts on a left side cover plate and a right side cover plate of the slide base cover body lock the slide lid at a position where the slide lid is drawn from the slide base cover, and the exchanging work can be done without an obstruction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connection device dedicated to a kind of frameless wiper and a hook-type wiper arm. In particular, it is designed for connection devices dedicated to known frameless wipers and hook-type wiper arms, which eliminates the need for assistance from others, enables operation by one person, and quickly and without any interference. And a hookless wiper arm and a hookless wiper arm dedicated connection device.

The wipers used in the windshields of current automobiles are roughly classified into two types: “frame-type wipers” and “frameless wipers”.
Since frame type wipers have been put into practical use for a long time, they are used in many vehicles. On the other hand, frameless wipers have begun to be used in new cars for the past few years, but they have better wiping effect and service life than frame-type wipers, and can greatly reduce the amount of frame material used. Since it also has an effect suitable for protection, it is showing momentum to replace frame-type wipers entirely.
In addition, the head end of the wiper arm used by the frame type wiper is a hook type, occupies most of the area, and in order to achieve a predetermined swing wiping function on the car windshield, the hook type wiper arm and The frame-type wipers are integrally joined by a plastic injection connector. U.S. Pat. Nos. US6539576, US6591445, US6332236, US6640380, US6161249, US5937474, US5611103, etc. disclose the structure.
On the other hand, since the structure of the frameless wiper is completely different from that of the frame type wiper, the type of the head end type of the wiper arm used in combination with the frameless wiper is also different. Different types of wiper arm head ends need to be associated with dedicated connection devices in order to connect and secure with the frameless wiper. U.S. Pat. , US2004 / 0098821, US2005 / 0039292, etc. have already disclosed connecting devices that are combined with different types of wiper arm head end types.

However, for users of a huge number of known frame-type wipers that are already used in cars, the known hook-type wiper arm used by the windshield of the car is dedicated to replacing it with a frameless wiper. This is not suitable for the connector and cannot be connected and fixed with the frameless wiper, so that it cannot be replaced. If you still want to replace it with a frameless wiper, you can only remove the original hook type wiper arm and purchase a hook type wiper arm that is compatible with the more expensive headless type of frameless wiper. This puts a heavy burden on the owner of the car with the old wiper arm.
On the other hand, a wiper manufacturer has recently developed a connection device that can connect a kind of frameless wiper and a known hook type wiper arm to each other to solve the above-mentioned drawbacks.
As shown in FIGS. 1 to 7 and 17, the structure includes a base 20, a frame cover body 30, a return lid 40, and a connector 50.
The base 20 is a metal press-molded product, and is provided with holding concave grooves 21 that are horizontally and parallel to each other on both sides of the lower part thereof. On both side edges of the apex surface 22 between the two sandwiching concave grooves 21, a left side wall plate 23 and a right side wall plate 24, which are vertically parallel to each other and have the same shape, are further provided. Provide. A fixed shaft 25 is provided horizontally between the left and right side wall plates. The base 20 is clamped and fixed to the wiper metal elastic compression rod 11 of the frameless wiper 10 by the two clamping grooves 21.

The frame cover body 30 is integrally formed of a plastic material, and is fitted on the bottom base 20. The frame cover body 30 has a left-side cover plate 31 and a right-side cover plate 32 having the same shape arranged in parallel and symmetrically, and a horizontal contact circle 33 horizontally between the front end edges of the left-side cover plate 31 and the right-side cover plate 32. And a contact plate 34 is provided horizontally between the rear edges. Further, the left fitting installation concave frame 35 and the right fitting installation concave frame 36 (see FIG. 4) open downward at the middle positions of the inner side surfaces of the left cover plate 31 and the right cover plate 32, respectively. ). Further, the left guard block 37 and the right guard block 38 face inward toward the upper edges of the left and right cover plates 31, 32 between the contact circle 33, the left fitting installation concave frame 35 and the right fitting installation concave frame 36, respectively. Projecting.
On the bottom edges of the left cover plate 31 and the right cover plate 32 corresponding to the opening direction of the left fitting installation concave frame 35 and the right fitting installation concave frame 36, four flanges respectively corresponding to each other inward. The fixing block 39 is installed. By means of the left fitting installation concave frame 35, the right fitting installation concave frame 36 and the four flange engagement fixing blocks 39, the frame cover body 30 is placed outside the left side wall plate 23 and the right side wall plate 24 of the base 20. It can be fitted and fixed on the bottom edge surface (see FIG. 5 and FIG. 17 g).

The return lid 40 is movably installed on the cover body 30 and covers the frame cover body 30 in the form of a hinge. A circular tube groove 41 is provided on one short side edge of the return lid 40, and a pair of elastic engagement hooks 42 is provided on both side surfaces of the opposite short side edge. The circular tube concave groove 41 is fitted to the contact circular shaft 33 of the frame cover body 30, and the return cover 40 is formed on the apex surface of the front half of the frame cover body 30 using the contact circular shaft 33 as a fulcrum of the rotation shaft. In FIG. 6, the engagement and fixing operation of opening and closing is performed (see FIGS. 6A and 6B).
The connector 50 is fitted between the left wall plate 23 and the right wall plate 24 of the base 20. The structure is almost the same as the connector structure used in a known frame type wiper, and a rectangular block body is integrally formed by plastic injection molding. The left side plate 51 and the right side plate 52 that are parallel to each other are connected to each other by a horizontal main body plate 53 that is perpendicular to the left side plate 51 and the right side plate 52. A flange guard block 54 that protrudes from each other is formed on the inner side of the front end portion of the left side plate 51 and the right side plate 52, and between the two flange guard blocks 54 and the front end edge of the horizontal main body plate 53. The hook head end 61 of the hook type wiper arm 60 is just accommodated and a space that can be engaged is formed. Further, a horizontal circular groove 55 whose opening is directed downward is formed in the horizontal main body plate 53 at the middle position of the left side plate 51 and the right side plate 52. The circular groove 55 is fitted on the fixed shaft 25 of the base 20 so that the connector 50 can pivot on the base 20 in a narrow inclination angle range.

A combination operation using the known connecting device for the hook type wiper arm 60 is shown in FIGS.
First, a force is applied to the return lid 40 with a finger to deform the pair of elastic engagement hooks 42 so that the left fitting installation concave frame 35 and the right fitting installation concave frame 36 are disengaged and fixed (FIG. 6). (See B in the figure). Further, the return lid 40 is opened outward from the frame cover body 30 with the bearing circle shaft 33 as a fulcrum of rotation (see D in FIG. 7).
Subsequently, the hook head end 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, and is inserted into the space between the two flange guard blocks 54 and the front end edge of the horizontal main body 53. Apply force until fully engaged and locked (see FIGS. 8 and 9 and E in FIG. 7). Finally, the return lid 40 is again fitted and engaged with the apex surface of the frame cover body 30 (see E and F in FIG. 7).

Although the known connecting device can connect and fix the frameless wiper 10 and the known hook type wiper arm to each other, there are many other disadvantages.
1. As shown in FIGS. 10 to 13, in the operation process of exchanging the old and new frameless wipers 10, the known connecting device is likely to be damaged due to interference of the return lid 40. The cause is as follows. When replacing with a new frameless wiper 10, first, an upward force is applied to the hook type wiper arm 60 in close contact with the vehicle windshield G (see FIG. 10), and the elastic bay fold 62 is used as a fulcrum. The hook type wiper arm 60 needs to be in an upright state, and the old frameless wiper 10 needs to be separated from the vehicle windshield G (see FIG. 12). In this way, the removal and replacement of the old and new frameless wipers 10 are started.
Therefore, in both the removal / attachment process, the frame cover body 30 is in an upright state, and the contact circle shaft 33 is at the highest position. Therefore, the return lid 40 is lowered from the open state by gravity. Then, the phenomenon of falling on the hook head end 61 and disturbing occurs (see the phantom line in FIG. 13-H). For this reason, the hook head end 61 collides with the return lid 40 in the work process of the detaching operation / attachment to the connector 50 (see I in FIG. 13). Therefore, if the degree of collision is large, the return lid 40 is damaged and the replacement work time is lengthened.
However, in order to avoid the phenomenon that the return lid 40 is subjected to a collision, there is no choice but to support the return lid 40 temporarily with the help of a person (see J in FIG. 13). The other person's hand takes the place and gets in the way. This is a problem that the known structure has not been considered.
2. As shown in FIGS. 9, 11, 14, and 15, when the hook type wiper arm 60 reciprocates in the automobile windshield G to wipe off water and dirt, it can be seen from the resultant force F direction of the motion receiving force. As described above, the vertical flange force F1 acts between the hook head end 61 and the two flange guard blocks 54 on the front end of the connector 50, so that the two flange guard blocks 54 are constantly applied to the hook head end 61. (See the illustration of the action of the force in FIG. 11). As a result, after the hook type wiper arm 60 swings a certain number of times or swings for a certain period of time, the connector 50 and the hook head end 61 are separated from each other (the order of the generation process is attached). In the reverse order of each illustration in FIG. 9 showing the work, the drawing starts from d and reaches the result shown in a).
The reason is that there are gaps δ between the left side cover plate 31 and the right side cover plate 32 of the frame cover body 30 on the outer edge surfaces of the left side plate 51 and the right side plate 52 front end portion (see FIG. 15). When the two flange guard blocks 54 are pushed by the hook head end 61 and are deformed and moved outward, the gap δ of the distance is received and separated.
However, the result of the connector 50 and the hook head end 61 being separated from each other is a serious concern for safety in driving a car, which is also a serious safety disadvantage that is not fully considered by known designs.
3. As shown in FIGS. 3 and 16 to 18, the left cover plate 31 and the right side cover 31 are arranged between the frame cover body 30 and the return lid 40 in order to achieve the functions of opening and closing the return lid 40. The front and rear ends of the cover plate 32 are respectively coupled by a contact circular axis 33 having a circular cut surface and a contact plate 34 having a rectangular upper cut surface (see FIG. 3). However, since the cross-sectional areas of these coupling structures are not equivalent, the magnitude of the force received is not equal to the tensile force action of the same external force, and the frame cover body 30 is fitted to the outside of the base 20. In the process of combining the left cover plate 31 and the right cover plate 32, the flange engagement fixing block 39 at the bottom edge is pressed against the left wall plate 23 and the right wall plate 24 (see e in FIG. 17). ), Deformed and expanded outward (see f in FIG. 17). At the same time, the central portion of the left cover plate 31 and the right cover plate 32 is deformed outward and expanded accordingly (see FIG. 16). As a result, a force f having substantially the same magnitude in the axial direction is indirectly generated on the contact circle shaft 33 and the contact plate 34, and as a result, one end of the shaft of the contact circle shaft 33 having a smaller area is obtained. Results in separation between the left cover plate 31 and the right cover plate 32 (see FIG. 18).
In this way, the frame cover body 30 is damaged, but this result occurs most frequently in the assembly process, and it is an obstacle to a decrease in the defective product rate of the entire product.
This drawback is also not considered by the designer of a known structure.
JP 58-89442 A

The known structure has the following drawbacks.
That is, in the process of exchanging the old and new frameless wipers, it is easy to generate a failure due to interference of the return cover of the cover body, and if the degree of collision of the return cover is excessive, the return cover is damaged, Moreover, the time required for the exchange is extended as a whole. Furthermore, if the hook type wiper arm swings for cleaning for a long time, the result is that the connector and the hook head end are detached. This is a safety concern in driving a car. In addition, during the assembly process, one end of the bearing circle shaft is easily separated from the left cover plate and the right cover plate, and this often causes damage to the frame cover body. This is an obstacle to the reduction of defective products.
The present invention provides a connection device dedicated to a frameless wiper and a hook-type wiper arm that solves the problems of the above structure.

In order to solve the above problems, the present invention provides the following connection device dedicated to a frameless wiper and a hook-type wiper arm.
It provides connection equipment dedicated to frameless wiper and hook type wiper arms, including bottom base, slide base cover, slide lid, connector,
Two slides of the slide cover on the pair of slide rails, a left cover plate in the slide base cover body, and two recessed fitting tanks on the right cover plate are used. After sliding out of the base cover body, the mating is quickly achieved, and the two are not separated from each other. Thus, when removing / attaching the hook head end of the hook type wiper arm and the connector, It is not necessary to support the slide lid and keep it from moving with the help of the operator, it can be operated by one person, and the slide lid comes back and does not touch and complete the replacement work of the old and new frameless wiper Can
It also provides a connection device dedicated to frameless wipers and hook type wiper arms, and when the two compression slices in the slide lid and the slide lid slide simultaneously and contact the slide base cover body, Two elastic engaging hooks of the lid are fitted into two engaging concave grooves on the bottom base, whereby a gap between the left side plate on the connector and the left wall plate of the bottom base, and The gaps between the right side plate on the connector and the right side wall plate of the base can be simultaneously inserted, thus preventing the connector from moving outside the two flange guard blocks on the left and right side plates. In the process of swinging and wiping off the water and dirt by the hook type wiper arm, it opposes the pulling force action of the vertical component force that causes the swing movement, and the hook head end and the connector Never Isolation terpolymers occurs, thus achieving 100% safety in the use of frameless wiper and hook-type wiper arm,
Furthermore, it provides a connection device dedicated to the frameless wiper and the hook type wiper arm, and the left cover plate and the right cover plate of the slide base cover body are connected by a straddling plate and a rear cover plate having a rectangular cross section. Since the cut surface shape is the same and the area of the cut surface is substantially the same, the flange on the left and right cover plate bottom edge in the process of fitting the slide table cover body to the outer edge of the bottom base body The engagement fixing block receives the push-up of the left and right wall plates of the bottom base, and deforms and expands outward, whereby the straddle plate and the rear cover plate are axially formed by the expansion. Therefore, the left and right cover plates are not separated due to the non-uniform area of the cut surface and the pressure applied to one of them is too high. Disadvantage that the slide block cover body is damaged can be prevented to thereby a connecting device frameless wiper and hook-type wiper arm only, wherein the can improve the yield of the entire product.

  As described above, the present invention is an improvement over the known frameless wiper and hook type wiper arm dedicated connection device, and can quickly and easily replace the old and new frameless wiper and hook type wiper arm without any human assistance. Work can be done.

As shown in FIGS. 19 to 27, the connection device dedicated to the frameless wiper and the hook type wiper arm of the present invention includes a base body 70, a slide base cover body 80, a slide lid 90, and a connector 100.
The bottom base 70 is a metal press-molded product, and includes a bottom wall plate 71, a left wall plate 72, and a right wall plate 73.
Two fixing holes 711 are formed on the bottom wall plate 71, and the bottom base body 70 is passed through two rivets (not shown) to allow the wiper metal elastic compression rod 11 on the frameless wiper 10 to pass therethrough. Secure on top.
On the both sides of the bottom wall plate 71, a left wall plate 72 and a right wall plate 73 having the same shape are provided so as to protrude upward in parallel. The left side wall plate 72 and the right side wall plate 73 are coupled by a horizontal fixed shaft 74, and the left side wall plate 72 and the front end wall plate 75 in the vicinity of the front end of the right side wall plate 73 are respectively recessed fitting holes 76. To drill. The two front end wall plates 75 are formed with a small upright convex plate 77 protruding forward, and a fitting concave groove 78 is provided on each of the upper end edges of the two upright convex plates 77. On the two long sides adjacent to each other of the bottom wall plate 71, the left side wall plate 72, and the right side wall plate 73, two sets of engagement fixing recesses 79 corresponding to each other are formed.

The slide table cover body 80 is a hollow rectangular body integrally molded by plastic, and includes a left cover plate 81, a right cover plate 82, a rear cover plate 83, and a straddle plate 84.
The left cover plate 81 and the right cover plate 82 are upright flat plates having the same shape and arranged in parallel. A horizontal left slide tank 85 and a right slide tank 86 are formed between the plurality of convex blocks arranged in parallel in the vertical direction on the inner side corresponding to each other. Further, a left position limited vertex frame frame 87 and a right position limited vertex frame frame 88 are formed on the upper edge of these cover plates so as to protrude inward relative to the central portion thereof, and further, the bottom edge thereof. Four flange engaging and fixing blocks 89 corresponding to the two sets of engaging and fixing recesses 79 of the bottom base 70 are respectively formed on the inner side surface close to.
The rear cover plate 83 is continuous with the rear end portions of the left cover plate 81 and the right cover plate 82 which are upright flat plates and forms a sealing surface. The straddle plate 84 is a horizontally oriented flat plate and is connected to the front edge of the left cover plate 81 and the front end portion of the right cover plate 82, and has an opening-like opening between the left cover plate 81 and the right cover plate 82. Form.

The slide lid 90 is a plastic integral injection-molded product, and includes a left lid piece 91, a right lid piece 92, a front lid surface 93, a vertex lid surface 94, a slide rail 95, and a compression thin piece 97.
The left lid piece 91 and the right lid piece 92 are upright flat plates having the same shape and parallel to each other, and the front edge and the top edge between them are continuous with the front lid surface 93 and the vertex lid surface 94. The inner surfaces of the left lid piece 91 and the right lid piece 92 are respectively extended on the opposite sides of the front lid surface 93 by extending horizontal and mutually parallel slide rails 95 to the outside, and the two slide rails 95. On the inner surface of the free end, a fitting flange 951 is formed to project. On the inner wall of the vertex cover surface 94 between the fixed ends of the two parallel slide rails 95, elastic engagement hooks 96 that are parallel to each other are extended vertically downward. On the inner wall surface near the side edge of the apex cover surface 94, a pair of compression slices 97 are provided in parallel to each other in the downward direction. Further, in order to facilitate the recognition of the slide operation direction of the slide lid 90, a directional arrow 99 is formed on the vertex surface lid 94, and the left lid piece 91 and the right lid piece 92 have anti-slip on the outer surfaces. Protrusions 98 are provided to increase the frictional force when operating with fingers.

The connector 100 is a rectangular block body made of an integral injection molded product made of plastic, and connects two left side plates 101 and right side plates 102 parallel to each other and a main body plate 103 arranged vertically and horizontally to these. It is formed integrally.
A flange guard block 104 is provided on the inner surface of the front end portion of the left side plate 101 and the right side plate 102 so as to protrude from each other, whereby the front end edges of the two flange guard blocks 104 and the main body plate 103 are formed. In the meantime, the hook head end 61 of the hook type wiper arm 60 is just accommodated to form a space to be engaged and fixed. Further, a circular groove 105 that opens downward is provided on the left side plate 101 and the main body plate 103 at the center of the right side plate 102. The circular groove 105 is fitted on the fixed shaft 74 of the bottom base 70 to enable the connector 100 to pivot on the bottom base 70 in a narrow angle range.

Next, FIGS. 19, 28 to 34 and 43 show the combination method and work process of the present invention.
First, two parallel slide rails 95 on the slide lid 90 are inserted and pushed into the left slide tank 85 and the right slide tank 86 of the slide base cover body 80, and the slide lid 90 and the slide base cover body 80 are pushed. Join.
Subsequently, when the bottom surface of the slide base cover body 80 is pushed in from above the bottom base body 70, the four flange engagement fixing blocks 89 on the left cover plate 81 and the right cover plate 82 are fixed to the hard bottom. The four flange engagement fixing blocks 89 are engaged and fixed to the bottom base body 70 by being pushed by the left side wall plate 72 and the right side wall plate 73 on the base body 70 and being expanded outward. It fits in the recessed part 79, emits the sound of fitting, and it turns out that this slide base cover body 80 and this bottom base body 70 were mutually fixed and couple | bonded (refer FIG. 43).
Finally, the opening of the circular groove 105 of the connector 100 is pushed into the fixed shaft 74 on the bottom base body 70, and the assembly is completed by fitting.
At this time, the slide lid 90 can be arbitrarily moved in the left slide tank 85 and the right slide tank 86 by the two slide rails 95, When the engagement fixing flange 951 moves and is engaged and fixed in the recessed fitting holes 76 on the left side wall plate 72 and the right side wall plate 73, a sound is generated. Thus, the slide lid 90 and the slide base cover body 80 are separated farthest (see FIGS. 28 and 29).
On the other hand, the slide lid 90 moves in the direction of the slide base cover body 80, and the two elastic engagement hooks 96 are fitted into the two engagement fixing grooves 78 on the upright convex plate 77, respectively. When this occurs, the slide lid 90 and the slide base cover body 80 come into close contact with each other (see FIGS. 30 and 31).

Subsequently, as shown in FIGS. 28, 29, 31, 35-41, before replacing the old and new frameless wiper 10, the hook-type wiper arm 60 in a horizontal state that is in close contact with the vehicle windshield G as in the known structure is first attached. An upward force is applied (see FIG. 35), the elastic bay fold 62 is used as a fulcrum, the hook type wiper arm 60 is brought upright, and the old frameless wiper 10 is separated from the vehicle windshield G (see FIG. 36). Thus, the removal and replacement work of the old and new frameless wiper 10 is started.
In this state, during the work of removing / attaching the old and new frameless wipers, the slide base cover body 80 is maintained in an upright state (see L in FIG. 37), and the removal / attachment work can be performed very easily. .
That is, first, the slide lid 90 is pulled away from the slide base cover body 80 and pulled out until the engagement fixing flange 951 on the slide rail 95 is fitted in the engagement fixing groove 78. At this time, if a voice is emitted (see M in FIGS. 28, 29, and 37), even if the slide lid 90 is in an upright state above the slide base cover body 80, the engagement fixing flange 951 and Since the fitting concave grooves 78 are subjected to the mutual engagement fixing action, the phenomenon of dropping due to gravity and coming into contact with the slide base cover body 80 does not occur.

At the same time, the compression piece 97 in the slide lid 80 also releases the engagement and fixation of the left side plate 101 and the right side plate 102 on the connector 100 accordingly, so that the left side plate 101 and the right side plate 102 and the bottom base body are released. A gap δ is formed between the two front end wall plates 75 of 70. Thus, the hook head end 61 is fitted onto the connector 100 without being obstructed (see N in FIGS. 40, 41 and 37).
Finally, if the slide lid 90 is pushed again in the direction of the slide base cover body 80 and the elastic engagement hook 96 fits into the engagement fixing groove 78 on the bottom base body 70 and makes a sound, It can be confirmed that the slide lid 90 and the slide base cover body 80 are again fitted to each other (see O in FIGS. 31 and 37). At the same time, the compression piece 97 of the slide lid 90 is again inserted into the two gaps δ between the left side plate 101 and the right side plate 102 and the front end wall plate 75, and the two flanges at the front end of the connector 100 are inserted. Control is performed so that the guard block 104 does not move outward (see FIG. 38). Thus, the hook-type wiper arm 60 never detaches from the connector 100 even if the swing operation is performed.

Further, as shown in FIG. 42, in the removal / attachment operation of the old and new frameless wiper 10 of the present invention, it can be completed quickly by one person without needing assistance from others, and the whole process of removal / attachment is described above. There is no phenomenon in which the known return lid 40 turns and falls naturally, and contacts and interferes with the hook head end 61. Therefore, naturally, a situation that destroys other components does not occur.
Further, as shown in FIGS. 22 and 43, the expansion toward the outside of the left cover plate 81 and the right cover plate 82 that occurs in the mutual fitting process of the slide table cover body 80 and the bottom base body 70 of the present invention An acting force of an axial pulling force f is applied to the straddling plate 84 and the rear cover plate 83 (see m in FIG. 43). Both of the cut surface shapes are rectangular, and the area is almost the same. Since they are equal, the pulling force can be shared on average. Therefore, it is possible to avoid the occurrence of situations such as dropout and breakage caused by the difference in the area of the cut surface of the known structure.

It is a three-dimensional exploded view of a known connecting device used for a frameless wiper and a hook type wiper arm. It is sectional drawing in the 2-2 line in FIG. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. It is a three-dimensional combination diagram of a known connecting device used for a frameless wiper and a hook type wiper arm. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. FIG. 6 is a cross-sectional view at a position 6-6 in FIG. 5 and shows a return lid operation state. It is a mounting operation instruction diagram of a known frameless wiper connecting device and a hook type wiper arm. It is a combination instruction diagram of a known hook type wiper arm and a known connector. It is sectional drawing in the 9-9 line in FIG. It is a usage instruction diagram of a known frameless wiper connecting device and a hook type wiper arm. It is an operation | movement instruction | indication figure of a well-known hook type wiper arm. FIG. 3 is a diagram illustrating the use of a known frameless wiper connecting device and a hook type wiper arm. It is an attachment / detachment instruction diagram of a known frameless wiper connecting device and hook type wiper arm. It is an attachment / detachment instruction diagram of a known frameless wiper connecting device and hook type wiper arm. It is an attachment / detachment instruction diagram of a known frameless wiper connecting device and hook type wiper arm. It is an attachment / detachment instruction diagram of a known frameless wiper connecting device and hook type wiper arm. It is an attachment / detachment instruction diagram of a known frameless wiper connecting device and hook type wiper arm. It is a section indication figure of a publicly known frameless wiper connection device. It is sectional drawing in the 14-14 position in FIG. FIG. 2 is a combination instruction diagram of a frame cover body and a base in a known frameless wiper connecting device. FIG. 3 is a combination cross-sectional instruction diagram 2 of a frame cover body and a base in a known frameless wiper connecting device. It is a three-dimensional indication figure of the frame cover body damaged state in a well-known frameless wiper connection device. It is a three-dimensional exploded view of the present invention. FIG. 20 is a cross-sectional view taken along line 19-19 in FIG. FIG. 20 is a cross-sectional view taken along line 20-20 in FIG. It is sectional drawing in the 21-21 line in FIG. FIG. 20 is a cross-sectional view taken along line 22-22 in FIG. It is sectional drawing in line 23-23 in FIG. It is sectional drawing in line 24-24 in FIG. It is sectional drawing in line 25-25 in FIG. It is sectional drawing in line 26-26 in FIG. It is a three-dimensional operation instruction diagram of the present invention. It is sectional drawing in the 28-28 line in FIG. It is a three-dimensional combination diagram of the present invention. It is sectional drawing in the 30-30 line in FIG. It is a left view after this invention combination. It is a combination plane sectional view of the present invention. It is sectional drawing in the 33-33 position in FIG. FIG. 3 is a diagram illustrating how to use the present invention and a hook type wiper arm. It is the usage instruction figure 2 of this invention and a hook type wiper arm. It is an attachment / detachment instruction diagram of the present invention and a hook type wiper arm. It is sectional drawing in the 37-37 line | wire in FIG. FIG. 39 is an operation instruction diagram of FIG. 38. It is a combination instruction diagram of the present invention and a connector. It is sectional drawing in line 40-407 in FIG. It is an attachment / detachment instruction diagram of the present invention and a hook type wiper arm. It is an attachment / detachment instruction diagram of the present invention and a hook type wiper arm. It is an attachment / detachment instruction diagram of the present invention and a hook type wiper arm. It is an attachment / detachment instruction diagram of the present invention and a hook type wiper arm. It is a combination cross-section instruction view of the bottom base body and slide base cover body of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Frameless wiper 11 Wiper metal elastic compression rod 20 Bottom base 21 Clamping groove 22 Apex surface 23 Left side wall plate 24 Right side wall plate 25 Fixed shaft 30 Frame cover body 31 Left side cover plate 32 Right side cover plate 33 Contacting circular shaft 34 Contacting plate 35 Left fitting installation concave frame 36 Right fitting installation concave frame 37 Left guard block 38 Right guard block 39 Flange engagement fixing block 40 Return lid 41 Circular pipe concave groove 42 Elastic engagement hook 50 Connector 51 Left side plate 52 Right side plate 53 Body plate 54 Flange guard block 55 Circular groove 60 Hook type wiper arm 61 Hook head end 62 Elastic fold part 70 Bottom base 71 Bottom wall plate 72 Left side wall plate 73 Right side wall plate 74 Fixed shaft 75 Front end wall plate 76 Recessed fitting hole 77 Upright convex plate 78 Fitting concave groove 79 Engagement fixing concave portion 80 Slide table cover body 81 Left cover plate 82 Right Side cover plate 83 Rear cover plate 84 Stretch plate 85 Left slide tank 86 Right slide tank 87 Left position limited vertex frame frame 88 Right position limited vertex frame frame 89 Flange engagement fixing block 90 Slide lid 91 Left lid piece 92 Right lid Piece 93 Front lid surface 94 Vertex lid surface 95 Slide rail 96 Elastic engagement hook 97 Compression thin piece 98 Non-slip ridge 99 Direction arrow 100 Connector 101 Left side plate 102 Right side plate 103 Body plate 104 Flange guard block 105 Circular groove 711 Fixing hole 951 Mating flange
f Axial tensile force
G car windshield
F resultant force
F1 Vertical component δ Air gap

Claims (2)

It consists of a bottom base, a slide base cover, a slide lid, and a connector.
The bottom base is a metal press-molded body comprising a bottom wall plate, a left wall plate, a right wall plate,
Two fixing holes for the frameless wiper are drilled on the bottom wall plate, and the left and right wall plates of the same shape are placed on both sides of the bottom wall plate so as to protrude upward in parallel. The left side wall plate and the right side wall plate are coupled by a horizontal fixed shaft, and a recessed fitting hole is formed on each of the left side wall plate and the front end wall plate near the front end of the right side wall plate, and The two front end wall plates are formed with protruding small upright convex plates facing forward, and the upper end edges of the two upright convex plates are each provided with a fitting groove, and the bottom wall plate and the left side wall plate On the two long sides adjacent to each other of the wall plate and the right side wall plate, two sets of engagement fixing recesses corresponding to each other are formed,
The slide base cover body is a hollow rectangular body integrally molded with plastic, and includes a left cover plate, a right cover plate, a rear cover plate, a straddle plate,
The left side cover plate and the right side cover plate are upright flat plates having the same shape and arranged in parallel, and are formed by a plurality of convex blocks arranged in parallel in the upper and lower sides in the center portions corresponding to each other. A horizontal left slide tank and a right slide tank are formed between the upper edge of these cover plates, and the left position limited vertex frame and the right position limited vertex are directed inward relative to the center of the cover plate. Each of the frame frames is formed to project, and on the inner surface near the bottom edge thereof, four flange engagement fixing blocks corresponding to the two sets of engagement fixing recesses of the bottom base body are formed to protrude.
The rear cover plate is continuously formed with the left cover plate and the rear end portion of the right cover plate, which are upright flat plates, and the straddle plate is a horizontal plate, and the left cover plate Connected to the front edge of the front end of the right cover plate, forming an opening-like opening between the left cover plate and the right cover plate;
The slide lid is a plastic integral injection-molded product, comprising a left lid piece, a right lid piece, a front lid surface, a vertex lid surface, a slide rail, a compression slice,
The left lid piece and the right lid piece are upright flat plates of the same shape and parallel, and the front edge and the top edge between them are continuous with the front lid surface and the vertex lid surface, and the left lid piece and the right lid The inner side surfaces of the pieces extend horizontally and mutually parallel slide rails to the opposite side of the front lid surface, and a fitting flange is provided on the inner side surfaces of the free ends of the two slide rails. Each projecting,
On the inner wall of the vertex cover surface between the fixed ends of the two parallel slide rails, another mutually parallel elastic engagement hook is extended vertically downward, and the edge edge of the vertex cover surface is extended. On the near inner wall surface, a pair of compression flakes are provided parallel to each other, vertically downward.
The connector is a rectangular block body of a plastic integral injection molded product, and is formed by connecting two mutually parallel left and right side plates and a body plate vertically and horizontally disposed thereon. ,
A flange guard block is provided on the inner surface of the left side plate and the front end portion of the right side plate so as to project from each other, whereby a hook is provided between the two flange guard blocks and the front end edge of the main body plate. The hook head end of the type wiper arm is accommodated to form a space to be engaged and fixed,
Further, the left side plate and the main body plate at the center position of the right side plate are opened on the lower side so as to be fitted on the fixed shaft 74 of the bottom base body 70 so as to allow pivoting in a narrow angle range. With a circular groove,
A special connection device for frameless wipers and hook-type wiper arms.   2. The frameless wiper and hook type according to claim 1, wherein a directional arrow is formed on the top cover, and non-slip ridges are provided on the outer surfaces of the left cover piece and the right cover piece. A dedicated connection device for wiper arms.

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