Four-way stage ejection composite slide mechanism for injection mold

Abstract

This utility model discloses a four-way staged demolding composite sliding mechanism for injection molds, including a front mold plate, a rear mold plate, an injection molded part, a first inclined guide post, a first inclined guide post seat, a first sliding seat, a first sliding guide block, an embedded sliding guide block, a first limiting block, an embedded sliding seat, an embedded sliding transition block, an embedded sliding part, a first sliding part, a second inclined guide post, a second inclined guide post seat, a second limiting block, a second sliding guide block, a second sliding seat, a second sliding part, an ejector push rod, an ejector pin, an ejector sleeve, a first limiting spring, an ejector sleeve pressure block, a third inclined guide post, a third inclined guide post seat, a third sliding guide block, a third sliding seat, a third sliding part, a third limiting block, and a return spring. Limiting rods, delayed ejector pins, ejector pins, ejector pin limiting springs, insert limiting springs, and ejector inserts, through nested sliding mechanisms, sliding-in-nested ejector sleeve push rod mechanisms, and sliding-in-nested delayed ejector pin mechanisms, achieve phased demolding of injection molded parts in four demolding directions. This avoids the problem of mechanism interference caused by simultaneous demolding of injection mold structures in different directions, prevents the ejector sleeve push rod mechanism from breaking the inner circular wall column position of the injection molded part, realizes phased demolding of multi-rib injection molded parts, avoids the problem of tearing or breakage caused by excessive demolding force in multi-rib injection molded parts due to single mold opening, and improves the mass production capability and mold life of multi-hole injection molds.

Description

Technical Field

[0001] This utility model relates to an injection mold structure, and more particularly to a four-way stage demolding composite slide mechanism for injection molds. It adopts a nested slide mechanism, a slide-in-nested ejector rod mechanism, and a slide-in-nested delayed ejector pin mechanism to solve the design and production problems of injection molds, such as multi-directional snap-fit ​​demolding of complex multi-hole injection molded parts and the problem that excessive demolding force in cylindrical holes and multi-rib structures can easily cause product breakage. Background Technology

[0002] Injection molded parts often have numerous holes due to installation and fixing requirements. To increase the strength of the load-bearing parts of thin-walled injection molded parts, reinforcing ribs need to be designed on the parts. During the cooling stage of injection molding, the shrinkage of the plastic material at the holes and ribs exerts a significant force on the adhesion of the hole and rib components. If forced demolding is attempted, it can easily cause dragging or breakage of the injection molded parts. For multi-hole injection molded parts, if the hole directions are inconsistent, it is necessary to consider the phased mold opening of the mold opening inserts in each direction to avoid interference problems caused by the simultaneous movement of moving parts in multiple directions. Utility Model Content

[0003] This utility model addresses the aforementioned technical challenges by providing a four-way staged demolding composite sliding mechanism for injection molds. It includes a front mold plate, a rear mold plate, an injection molded part, a first inclined guide pillar, a first inclined guide pillar seat, a first sliding seat, a first sliding guide block, an embedded sliding guide block, a first limiting block, an embedded sliding seat, an embedded sliding transition block, an embedded sliding part, a first sliding part, a second inclined guide pillar, a second inclined guide pillar seat, a second limiting block, a second sliding guide block, a second sliding seat, a second sliding part, an ejector push rod, an ejector pin, an ejector sleeve, a first limiting spring, an ejector sleeve pressure block, a third inclined guide pillar, a third inclined guide pillar seat, a third sliding guide block, a third sliding seat, a third sliding part, a third limiting block, a return spring, a limiting rod, and a delay top. The injection mold includes ejector pins, ejector pins, ejector pin limiting springs, insert limiting springs, and ejector inserts. The four-way staged ejection composite sliding mechanism of the injection mold includes a nested sliding mechanism, a sliding-nested ejector sleeve mechanism, and a sliding-nested delayed ejector pin mechanism. The injection molded part has a thin-walled, porous, complex curved surface structure with holes, cylindrical pillars, and multi-ribbed sections in different directions. The front mold plate, rear mold plate, embedded sliding mechanism, first sliding mechanism, second sliding mechanism, ejector pin, ejector sleeve, third sliding mechanism, ejector pins, and ejector inserts form the injection cavity of the injection molded part when the injection mold is closed. When the injection mold is closed, the upper surface of the rear mold plate contacts the lower surface of the front mold plate, and the four-way staged ejection composite sliding mechanism of the front and rear mold plates... The peripheral end faces are flush. The first inclined guide post seat is fixedly installed on the front template. The first inclined guide post is fixedly installed in the inclined cylindrical hole opened in the first inclined guide post seat. The first limiting block is fixedly installed on the left side wall of the rear template. The first sliding guide block is fixedly installed on the upper surface of the rear template. The bottom of the first sliding seat has a T-shaped structure. The first sliding seat can slide left and right along the T-shaped groove formed by the first sliding guide block and the upper surface of the rear template. The embedded sliding guide block is fixedly installed on the upper surface of the first sliding seat. The bottom of the embedded sliding seat has a T-shaped structure. The embedded sliding seat can slide left and right along the T-shaped groove formed by the embedded sliding guide block and the upper surface of the first sliding seat. The embedded sliding seat is nested in the groove opened on the first sliding seat and has a shape that matches its shape. Within a uniform square hole, the first inclined guide post can move obliquely up and down along an oblique cylindrical hole with the same outer diameter as the embedded slide seat. The first slide seat has a U-shaped through hole with the same direction as the first inclined guide post. When the injection mold is closed, the lower right side wall of the first inclined guide post is pressed against the right side inclined surface of the U-shaped through hole on the first slide seat. The first slide is fixedly installed on the first slide seat. The first slide has a slot for installing the embedded slide adapter block and the embedded slide. The embedded slide adapter block is fixedly installed on the right end face of the embedded slide seat. An oblique T-shaped boss is machined on the right side of the embedded slide adapter block. The T-shaped boss on the embedded slide adapter block is fitted into the oblique T-shaped slot machined on the embedded slide.The second inclined guide post seat is fixedly installed on the front template. The second inclined guide post is fixedly installed in an inclined cylindrical hole of the same shape as the second inclined guide post seat. The second inclined guide post passes through the inclined cylindrical hole of the same shape as the second sliding seat and can move obliquely up and down relative to the second sliding seat. The second limiting block is fixedly installed on the rear template. The second sliding guide block is fixedly installed on the rear template and forms a T-groove with the upper surface of the rear template. The T-shaped boss at the bottom of the second sliding seat is fitted into the T-groove formed by the second sliding guide block and the rear template and can slide back and forth along the T-groove. The second sliding seat is fixedly installed on the second sliding seat. A tool for installing the driver is provided inside the second sliding seat. The ejector pin and ejector sleeve have cylindrical through holes. The ejector pin passes through the ejector sleeve, ejector sleeve push rod, and ejector sleeve pressure block. The rear end of the ejector pin is fixedly installed on the second slide seat. The ejector sleeve push rod has a U-shaped structure. When the injection mold is closed, the tops of the cylindrical parts on both sides of the ejector sleeve push rod contact the vertical plane machined on the front template. The bottom of the ejector sleeve pressure block and the ejector sleeve push rod are installed in grooves of the same shape on the second slide seat. The cylindrical parts on the left and right sides of the ejector sleeve push rod pass through two cylindrical holes on the second slide seat. The ejector sleeve push rod and the ejector sleeve pressure block can slide back and forth relative to the second slide seat and the second slide seat. The first limit spring is pre-compressed and installed in the cylindrical hole on the second slide seat. The ejector sleeve pressure block fixes the ejector sleeve to the ejector sleeve push rod. The sleeve passes through the first limiting spring and the second sliding position; the third limiting block is fixedly installed on the rear template, and the limiting rod passes through the pre-compressed reset spring and the third limiting block and is fixed on the third sliding position seat; the third inclined guide post seat is fixedly installed on the front template, and the third inclined guide post is fixedly installed in an inclined cylindrical hole of the same size as the third inclined guide post seat; the third sliding position seat has an inclined cylindrical hole of the same size as the third inclined guide post, and the third inclined guide post can move obliquely up and down relative to the third sliding position seat; the third sliding guide block is fixedly installed on the rear template, and the T-shaped boss at the bottom of the third sliding position seat is fitted into the T-shaped groove formed by the third sliding guide block and the rear template and can move left and right along the direction of the T-shaped groove. The third slides to the right, and is fixedly installed on the third slide seat. In the mold-closed state, the right end of the delay ejector pin contacts the vertical plane machined on the third inclined guide post seat. The ejector pin limiting spring is pre-compressed and installed in the hole opened on the third slide. The demolding ejector pin passes through the ejector pin limiting spring and is installed in the hole of the same size opened on the third slide, and can slide left and right relative to the third slide. The right end face of the demolding ejector pin contacts the left end face of the delay ejector pin. The insert limiting spring is pre-compressed and installed in the hole opened on the third slide. The demolding insert is installed in the hole of the same size opened on the third slide and can slide left and right relative to the third slide. The right end face of the demolding insert contacts the left end face of the insert limiting spring.

[0004] The beneficial effects of this utility model are as follows: The four-way stage demolding composite sliding mechanism of the injection mold achieves staged demolding in four directions after the injection molding of multi-hole and multi-rib injection molded parts by nesting sliding mechanisms, sleeve mechanisms and delayed ejector pin mechanisms in three sliding mechanisms respectively. This realizes demolding in four directions of the mold demolding mechanism. Staged demolding of cylindrical holes and multi-rib parts of the injection molded parts avoids the product dragging or breakage caused by single demolding of cylindrical holes and multi-rib parts, thereby improving the yield of injection molded parts and the mass production capability of injection molds. Attached Figure Description

[0005] Figure 1 This is a schematic diagram of the overall structure of the four-way stage demolding composite sliding mechanism for injection molds.

[0006] Figure 2 This is a schematic diagram of a partial structure of an injection mold.

[0007] Figure 3 This is a schematic diagram of a partial structure of an injection mold.

[0008] Figure 4 This is a schematic diagram of a partial structure of an injection mold.

[0009] Figure 5 This is a schematic diagram of a partial structure of an injection mold.

[0010] Figure 6 This is a schematic diagram of a partial structure of an injection mold.

[0011] Figure 7 This is a schematic diagram of a partial structure of an injection mold.

[0012] Figure 8 This is a schematic diagram of a partial structure of an injection mold.

[0013] Figure 9 This is a schematic diagram of a partial structure of an injection mold.

[0014] Figure 10 This is a schematic diagram of a partial structure of an injection mold.

[0015] Figure 11 This is a schematic diagram of a partial structure of an injection mold.

[0016] Figure 12 This is a schematic diagram of the injection molded part.

[0017] Figure 13 This is a schematic diagram of a partial structure of an injection-molded part.

[0018] The components are: 1. Front mold plate; 2. Rear mold plate; 3. Injection molded part; 4. First inclined guide post; 5. First inclined guide post seat; 6. First slide seat; 7. First slide guide block; 8. Embedded slide guide block; 9. First limiting block; 10. Embedded slide seat; 11. Embedded slide transition block; 12. Embedded slide; 13. First slide; 14. Second inclined guide post; 15. Second inclined guide post seat; 16. Second limiting block; 17. Second slide guide block; 18. Second slide seat; 9. Second slide; 20. Ejector push rod; 21. Ejector pin; 22. Ejector sleeve; 23. First limit spring; 24. Ejector sleeve pressure block; 25. Third inclined guide post; 26. Third inclined guide post seat; 27. Third slide guide block; 28. Third slide seat; 29. ​​Third slide; 30. Third limit block; 31. Reset spring; 32. Limit rod; 33. Delayed ejector pin; 34. Demolding ejector pin; 35. Ejector pin limit spring; 36. Insert limit spring; 37. Demolding insert. Detailed Implementation

[0019] As attached Figures 1-11 As shown, a four-way staged demolding composite sliding mechanism for an injection mold includes a front mold plate 1, a rear mold plate 2, an injection part 3, a first inclined guide post 4, a first inclined guide post seat 5, a first sliding seat 6, a first sliding guide block 7, an embedded sliding guide block 8, a first limiting block 9, an embedded sliding seat 10, an embedded sliding transition block 11, an embedded sliding part 12, a first sliding part 13, a second inclined guide post 14, a second inclined guide post seat 15, a second limiting block 16, a second sliding guide block 17, a second sliding seat 18, a second sliding part 19, an ejector pin 20, and an ejector sleeve. The injection mold four-way stage demolding composite sliding mechanism includes a nested sliding system, a sliding inner nested ejector sleeve push rod mechanism, and a sliding inner nested delayed ejector pin mechanism. Components include: needle 21, ejector sleeve 22, first limiting spring 23, ejector sleeve pressure block 24, third inclined guide post 25, third inclined guide post seat 26, third sliding guide block 27, third sliding seat 28, third sliding position 29, third limiting block 30, reset spring 31, limiting rod 32, delayed ejector pin 33, demolding ejector pin 34, ejector pin limiting spring 35, insert limiting spring 36, and demolding insert 37.

[0020] As attached Figure 12 and attached Figure 13 As shown, injection molded part 3 is a thin-walled, porous, complex curved surface structure. Injection molded part 3 has holes, round-walled pillars, and multi-bone parts in different directions. When the injection molding production is completed and the part is demolded, the mold mechanism needs to complete the demolding action in four directions. The round-walled pillars and multi-bone parts are opened in two stages to avoid the demolding force being concentrated on the part and causing the part to be dragged or broken.

[0021] As attached Figures 1-11The images show the state of the mold mechanism when the injection mold is closed and the injection is complete. After the injection molding of part 3 is completed, in the first stage of mold demolding, the front mold plate 1 moves upward and separates from the rear mold plate 2. The front mold plate 1 drives the first inclined guide pillar 4, the first inclined guide pillar seat 5, the second inclined guide pillar 14, the second inclined guide pillar seat 15, the third inclined guide pillar 25, and the third inclined guide pillar seat 26 to move upward together. The first inclined guide pillar 4 drives the inner slide seat 10 and the inner slide transition block 11 to move horizontally to the left. The inner slide transition block 11 drives the inner slide 12 to move along the first... The inclined groove on slide 13 moves to the upper left, causing the front snap-fit ​​part of the embedded slide 12 to detach from the injection part 3. During this stage, the second inclined guide post 14 moves the second slide seat 18, the second slide 19, and the ejector pin 21 backward together. The second slide 19 and the ejector pin 21 detach from the plastic part 3. The tops of the cylindrical parts on both sides of the ejector push rod 20 contact the vertical plane machined on the front template 1. During the first stage of mold opening, its position relative to the injection part 3 remains unchanged. The positions of the ejector 22 and the ejector pressure block 24 relative to the injection part 3 remain unchanged. The top surface of the ejector sleeve 22 remains unchanged. When the ejector pin 21 moves backward to demold, it abuts against the cylindrical column part of the injection molded part 3 to prevent the column part of the injection molded part 3 from being broken due to excessive demolding pull of the ejector pin 21. During this stage, the third inclined guide post 25 drives the third slide seat 28 and the third slide 29 to move horizontally to the right. When the third slide 29 demolds the injection molded part 3, the right end face of the delayed ejector rod 33 contacts the vertical plane machined on the third inclined guide post seat 26. The positions of the delayed ejector rod 33 and the demolding ejector pin 34 relative to the injection molded part 3 remain unchanged. When the third row 29 demolds from the injection part 3, the pre-compressed insert limiting spring 36 releases pressure and presses the left end face of the demolding insert 37 onto the injection part 3. The position of the demolding insert 37 relative to the injection part 3 remains unchanged. When the third row 29 moves to the right relative to the injection part 3, the demolding ejector pin 34 and the demolding insert 37 push against the multi-rib portion of the injection part 3 to the left, preventing the injection part 3 from being dragged or broken due to excessive clamping force on the rib portion of the third row 29 caused by the cooling and shrinkage of the plastic material when the third row 29 demolds from the multi-rib portion of the injection part 3.

[0022] In the second stage of mold release from the injection mold, the front mold plate 1 drives the first inclined guide post 4, the first inclined guide post seat 5, the second inclined guide post 14, the second inclined guide post seat 15, the third inclined guide post 25, and the third inclined guide post seat 26 to continue moving upward. The lower left side of the first inclined guide post 4 contacts the left inclined surface of the U-shaped through hole on the first slide seat 6. The first inclined guide post 4 drives the first slide seat 6, the first slide 13, the inner slide seat 10, the inner slide transition block 11, and the inner slide 12 to slide horizontally to the left together. The first slide 13 is demolded from the left side of the injection part 3. In this stage, the second inclined guide post 14 drives the second slide seat 18, the second slide 19, the ejector rod 20, the ejector pin 21, the ejector 22, the first limit spring 23, and the ejector pressure block 24 to move backward together. The pre-compression pressure of the limiting spring 23 is released, and the ejector sleeve 22 is demolded from the injection molded part 3. During this stage, the third inclined guide post 25 drives the third row seat 28, the third row seat 29, the limiting pin 32, the delayed ejector pin 33, the demolding ejector pin 34, the ejector pin limiting spring 35, the insert limiting spring 36, and the demolding insert 37 to move to the right together. The pre-compression pressure of the insert limiting spring 36 and the demolding insert 37 is released, and the demolding ejector pin 34 and the demolding insert 37 are demolded from the injection molded part 3. At this time, the injection molded part 3 is completely ejected from the injection mold cavity. At this time, the left side of the first row seat 6 contacts the first limiting block 9, the outer side of the second row seat 18 contacts the second limiting block 16, and the right side of the third row seat 28 contacts the third limiting block 30. One cycle of injection molding production is completed.

[0023] A four-way staged demolding composite sliding mechanism for injection molds achieves demolding of injection molded parts in two stages and four directions through the coordination and motion sequence control of the injection mold nested sliding system, the sliding inner nested ejector rod mechanism, and the sliding inner nested delayed ejector pin mechanism. By opening the mold in stages, the demolding force during the demolding process of injection molded parts is reduced, avoiding the problem of dragging or breakage of cylindrical column parts and multi-rib parts of injection molded parts due to excessive demolding pull during injection molding production.

[0024] The above description is a preferred embodiment of the present utility model and is intended to illustrate the content and concept of the present utility model. The content of this specification should not be construed as a limitation of the present utility model.

Claims

1. A four-way staged demolding composite sliding mechanism for an injection mold, comprising a front mold plate (1), a rear mold plate (2), an injection molded part (3), a first inclined guide pillar (4), a first inclined guide pillar seat (5), a first sliding seat (6), a first sliding guide block (7), an embedded sliding guide block (8), a first limiting block (9), an embedded sliding seat (10), an embedded sliding transition block (11), an embedded sliding part (12), a first sliding part (13), a second inclined guide pillar (14), a second inclined guide pillar seat (15), a second limiting block (16), a second sliding guide block (17), and a second sliding seat. (18), second slide (19), ejector push rod (20), ejector pin (21), ejector sleeve (22), first limiting spring (23), ejector sleeve pressure block (24), third inclined guide post (25), third inclined guide post seat (26), third slide guide block (27), third slide seat (28), third slide (29), third limiting block (30), reset spring (31), limiting rod (32), delayed ejector pin (33), demolding ejector pin (34), ejector pin limiting spring (35), insert limiting spring (36), and demolding insert (37), characterized in that, The four-way stage demolding composite sliding mechanism of the injection mold includes a nested sliding mechanism, a sliding inner nested ejector sleeve push rod mechanism, and a sliding inner nested delayed ejector pin mechanism; the injection part (3) is a thin-walled, porous, complex curved surface structure, and the injection part (3) has holes, round-walled pillars, and multi-bone parts in different directions; the front template (1), rear template (2), embedded sliding part (12), first sliding part (13), second sliding part (19), ejector pin (21), ejector sleeve (22), third sliding part (29), demolding ejector pin (34), and demolding insert (37) form the injection cavity of the injection part (3) in the mold-closed state of the injection mold. In the mold-closed state, the upper surface of the rear template (2) is in contact with the lower surface of the front template (1), the four sides of the front template (1) and the rear template (2) are flush, the first inclined guide post seat (5) is fixedly installed on the front template (1), the first inclined guide post (4) is fixedly installed in the inclined cylindrical hole opened in the first inclined guide post seat (5), the first limiting block (9) is fixedly installed on the left side wall of the rear template (2), the first sliding guide block (7) is fixedly installed on the upper surface of the rear template (2), the bottom of the first sliding seat (6) is a T-shaped structure, and the first sliding seat (6) can slide along the first sliding guide block (7) and the upper surface of the rear template (2). The T-shaped groove formed by the surfaces slides left and right. The embedded guide block (8) is fixedly installed on the upper surface of the first row seat (6). The bottom of the embedded row seat (10) is a T-shaped structure. The embedded row seat (10) can slide left and right along the T-shaped groove formed by the embedded guide block (8) and the upper surface of the first row seat (6). The embedded row seat (10) is nested in the square hole opened on the first row seat (6) with the same shape. The first inclined guide post (4) can move obliquely up and down along the oblique cylindrical hole opened on the embedded row seat (10) with the same outer diameter. The first row seat (6) has a hole with the same direction as the first oblique guide post (4). The U-shaped through hole is formed. When the injection mold is closed, the lower right side wall of the first inclined guide post (4) is pressed against the right inclined surface of the U-shaped through hole on the first slide seat (6). The first slide (13) is fixedly installed on the first slide seat (6). The first slide (13) is provided with a slot for installing the embedded slide transition block (11) and the embedded slide (12). The embedded slide transition block (11) is fixedly installed on the right end face of the embedded slide seat (10). The right side of the embedded slide transition block (11) is machined with an inclined T-shaped boss. The T-shaped boss on the embedded slide transition block (11) is fitted into the inclined T-shaped groove machined on the embedded slide (12).The second inclined guide post seat (15) is fixedly installed on the front template (1). The second inclined guide post (14) is fixedly installed in the inclined cylindrical hole with the same shape as the second inclined guide post seat (15). The second inclined guide post (14) passes through the inclined cylindrical hole with the same shape as the second row seat (18) and can move obliquely up and down relative to the second row seat (18). The second limiting block (16) is fixedly installed on the rear template (2). The second row guide block (17) The second row seat (18) is fixedly installed on the rear template (2) and forms a T-shaped groove with the upper surface of the rear template (2). The T-shaped boss at the bottom of the second row seat (18) is fitted into the T-shaped groove formed by the second row guide block (17) and the rear template (2) and can slide back and forth along the T-shaped groove. The second row seat (19) is fixedly installed on the second row seat (18). A cylindrical through hole for installing the ejector sleeve (22) and the ejector needle (21) is opened in the second row seat (19). The ejector needle (21) passes through the ejector sleeve. (22) The ejector pin (20) and ejector block (24) are fixedly installed on the second row seat (18) at the rear end of the ejector pin (21). The ejector pin (20) has a U-shaped structure. When the injection mold is closed, the top of the cylindrical parts on both sides of the ejector pin (20) are in contact with the vertical plane machined on the front template (1). The bottom of the ejector block (24) and the ejector pin (20) are installed in the groove with the same shape opened on the second row seat (19). The ejector pin (20) is positioned on the left and right sides. The two cylindrical tubes pass through the two cylindrical holes opened on the second row seat (18). The sleeve push rod (20) and the sleeve pressing block (24) can slide back and forth relative to the second row seat (18) and the second row seat (19). The first limiting spring (23) is pre-compressed and installed in the cylindrical hole opened on the second row seat (19). The sleeve pressing block (24) fixes the sleeve (22) on the sleeve push rod (20). The sleeve (22) passes through the first limiting spring (23) and the second row seat (19).The third limiting block (30) is fixedly installed on the rear template (2). The limiting rod (32) passes through the pre-compressed reset spring (31) and the third limiting block (30) and is fixed on the third row seat (28). The third inclined guide post seat (26) is fixedly installed on the front template (1). The third inclined guide post (25) is fixedly installed in the inclined cylindrical hole of the same size as the third inclined guide post seat (26). The third row seat (28) has an inclined cylindrical hole of the same size as the third inclined guide post (25). The third inclined guide post (25) can move obliquely up and down relative to the third row seat (28). The third row guide block (27) is fixedly installed on the rear template (2). The T-shaped boss at the bottom of the third row seat (28) is fitted into the T-shaped groove formed by the third row guide block (27) and the rear template (2) and can slide left and right along the direction of the T-shaped groove. The third row (29) The ejector pin (33) is fixedly installed on the third row seat (28). In the mold closing state, the right end of the delay ejector pin (33) contacts the vertical plane machined on the third inclined guide pillar seat (26). The ejector pin limiting spring (35) is pre-compressed and installed in the hole opened on the third row seat (29). The ejector pin (34) passes through the ejector pin limiting spring (35) and is installed in the hole opened on the third row seat (29) with the same size as it and can slide left and right relative to the third row seat (29). The right end face of the ejector pin (34) contacts the left end face of the delay ejector pin (33). The insert limiting spring (36) is pre-compressed and installed in the hole opened on the third row seat (29). The ejector insert (37) is installed in the hole opened on the third row seat (29) with the same size as it and can slide left and right relative to the third row seat (29). The right end face of the ejector insert (37) contacts the left end face of the insert limiting spring (36).

Images