CN202266183U - Telescopic ladder - Google Patents
Telescopic ladder Download PDFInfo
- Publication number
- CN202266183U CN202266183U CN2011204205286U CN201120420528U CN202266183U CN 202266183 U CN202266183 U CN 202266183U CN 2011204205286 U CN2011204205286 U CN 2011204205286U CN 201120420528 U CN201120420528 U CN 201120420528U CN 202266183 U CN202266183 U CN 202266183U
- Authority
- CN
- China
- Prior art keywords
- ladder
- bench
- vertical pole
- aforementioned
- operating element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/082—Connections between rungs or treads and longitudinal members
- E06C7/083—Bracket type connection
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
- E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The utility model relates to a telescopic ladder with a plurality of ladder sections. Each ladder section comprises two parallel longitudinal rods and a horizontal rod arranged at the tops of the longitudinal rods and mutually connected. The longitudinal rods on each upper ladder section can be at least partially pushed into longitudinal rods of a lower ladder section, each lower ladder section is provided with a locking device capable of locking the longitudinal rods of the upper ladder section in an extension state, and each locking device is provided with an operation device. Each ladder section further comprises an operation element which is arranged above the longitudinal rods or at the position of a push block at the position of the upper end and used for operating other operation devices of other ladder sections above the ladder section. Each locking device comprises a locking element for locking one upper ladder section, wherein the locking element can move to the unlocking position through the operation devices. In order to provide telescopic ladder capable of preventing users from being injured, guide elements are respectively arranged on the longitudinal rods or push blocks of upper ladder sections to force hands to move laterally in shrinking the ladder, each guide element slightly offsets corresponding to the operation element of the lower ladder section, and to the folded ladder, at least the ladder is partially arranged beside the operation elements.
Description
Technical field
The utility model relates to a kind of telescopic ladder; This ladder has some bench; Wherein each bench has two parallel vertical poles respectively and makes vertical pole strut rail connected to one another in the top; And wherein descend at least bench (be provided with above this time bench other on bench) the vertical pole of vertical pole, especially all bench to be configured to respectively be hollow; And wherein vertical pole of bench also can push the vertical pole that each is positioned at the bench of its below at least in part on each, and wherein descends bench to be respectively arranged with at least one blocking device, and these blocking devices are locked in flexible state with the vertical pole of position each bench on it on the one hand; And make vertical pole place unlocked position in order to promote ladder together on the other hand; Wherein each blocking device has the manipulation device that particularly is arranged in the strut rail on the one hand, also comprises the operating element at the jacking block place of the upper end that especially is installed in vertical pole top or is installed in vertical pole on the other hand, handles the manipulation device that other is assigned to position bench on it when promoting ladder automatically together; And each blocking device comprises blocking element in addition; This blocking element especially side direction passes down groove in the vertical pole of bench, is embedded in the respective slot of bench and pins thus and should go up bench, and this blocking element is moveable to unlocked position through manipulation device, and need not be embedded in the groove of upper vertical bar.
Background technology
For a long time from the practice known telescopic ladder.In order to climb up the ladder as far as possible safely, when not extending a ladder fully, all strut rails of not pulling out are all in the top of ladder.
The shortcoming of known telescopic ladder is the body part that the user of ladder occurs, and for example finger, skin chirring or hand clip to the danger between another parts of strut rail and ladder.
The utility model content
The task of the utility model is, avoids these aforesaid drawbacks and provides a kind of telescopic ladder, and it can use under the situation that does not correspondingly make the injured danger of user.
This task solves through following mode; Be that vertical pole or the jacking block of bench at least one is respectively arranged with director element that at least one is provided with and that extend along the direction of another vertical pole of this bench obliquely from the surface of this vertical pole below each strut rail; Shifted laterally body part when together promoting ladder to force, wherein each director element be arrange about the operating element laterally offset ground of affiliated down bench and for the ladder that promotes together, be arranged at least in part by this operating element.
Thus, the body part of having eliminated the user of ladder clips to danger or the shortcoming of clamped spot between strut rail and another parts of ladder.If body part, for example finger is positioned at operating element top, and then before occurring clamping, this body branch avoids and slips over from the director element side direction.
Preferably, at least one vertical pole, be respectively arranged with two director elements that are juxtaposed to each other, it is bigger that these director elements are provided in the width of both sides gap ratio operating element each other of operating element.Thereby operating element is by these two director element flanked, thereby can equally in both sides reduce/avoid the danger that is clipped to well.
According to the utility model, the distance that is between two strut rails in the state that promotes together confirms that by end block these end blocks lay respectively at the lower end of vertical pole, and this distance constitutes the minimum safe distance between two strut rails.
At this, the end block of nethermost vertical pole is configured to the base of ladder simultaneously.Therewith irrespectively, inner end block also can be configured to bear simultaneously guide function.In addition, the end block in the corresponding structure can be for example through friction, pneumatic or when blocking device unclamps, postpone similarly or suppress ladder at least a little and fall together.
Advantageously, below be provided with the bench of another bench the downside place of jacking block be provided with at least one director element.
Also can be provided with up in the strut rail of bench of another bench and be provided with at least one blocking device.
According to the utility model, the top of at least one operating element can be configured to dwindle gradually, and the seamed edge face of the diagonally extending of operating element has at least 60 ° and less than 90 ° angle [alpha] with respect to the strut rail orientation.
For the preferred embodiment of the utility model, at least one operating element can have ladder (Stufe) in the top, thereby, but the blocking device of contraposition bench is on it handled thus.
Advantageously, the lateral distance EB at the regional internal ratio operating element of the seamed edge that for the ladder that promotes together, is lateral to operating element is big at least for the lateral distance EL of at least one director element.
According to the utility model, at least one director element can have the angle beta with respect to maximum 30 ° of vertical pole, thereby, turn to accordingly when promoting ladder together.
At this, at least one director element corrects under it does not have ladder, thereby, the few risk of injury that can avoid adding, produce owing to this structure.Preferably, at least one director element does not have the gap with respect to vertical pole yet in its lower end.In addition, can pack in the vertical pole in the lower end of at least one director element.
Description of drawings
Be illustrated in the embodiment of the utility model shown in the accompanying drawing below.Accompanying drawing illustrates:
Fig. 1 is the lateral view according to the telescopic ladder of the utility model,
Fig. 2 is the detailed perspective according to the jacking block of Fig. 1 theme,
Fig. 3 is the partial perspective cutaway view according to Fig. 2 theme,
Fig. 4 is a lateral view of going up jacking block and following jacking block,
Fig. 5 is the stereogram according to Fig. 4 theme,
Fig. 6 is arranged on the sectional view of the last jacking block at vertical pole place, and
Fig. 7 is the local side sectional view according to Fig. 2 theme, and it has shown vertical pole and unshowned manipulation device.
The specific embodiment
In institute's drawings attached, for identical or adopt consistent Reference numeral with base part.
Fig. 1 illustrates telescopic ladder 1, and it has some bench A, B, C.At this, each bench A, B, C comprise two parallel vertical poles 5,6,7 respectively and make vertical pole 5,6,7 strut rails 2,3,4 connected to one another in the top.
At this, it is hollow that the vertical pole 5,6,7 of vertical pole 5,6,7, especially all bench A, B, the C of at least one following bench B, C (being provided with other last bench A, B above it) is configured to respectively.
In addition, the vertical pole 5,6,7 of bench A, B can be shifted onto in the vertical pole 5,6,7 of each thereunder bench B, C at least in part on each.
The upper end of vertical pole 5,6,7 is provided with the jacking block 11,12,13 that keeps strut rail 2,3,4.Except uppermost jacking block 11, each jacking block 12,13 each upper vertical bars 5,6 of guiding.In nethermost vertical pole 7, the side direction guiding is not carried out in the lower end of the vertical pole 7 that constitutes ladder 1 base.
Following bench A, B are respectively arranged with at least one blocking device 16; These blocking devices make the vertical pole 5,6 of position bench B, C on it be locked in flexible state on the one hand, and can make these vertical poles place unlocked position in order to promote ladder 1 together on the other hand.
As visible from Fig. 2 and Fig. 3, each blocking device 16 comprises blocking element 18 in addition, and these blocking element 18 side direction are passed down the groove 19 in the vertical pole 6,7 of bench and are embedded in the respective slot of vertical pole 5,6 of bench and thus with this bench pinning.
At this; Blocking element 18 is moveable to unlocked position through manipulation device 17; In this position, no longer be embedded in the groove 20 of upper vertical bar 5,6, and this manipulation device 17 be when promoting ladder 1 together manually or automatically through be positioned at the bench A under it, the operating element 14 of B is handled.
When the strut rail above operating element 14 3 moves downward; This operating element 14 was brought in the manipulation device 17 of handling the blocking device 16 in the strut rail 3 with scabbling of its upside before arriving the end position of strut rail 3, wherein be unlocked near the vertical pole on it 5 and the strut rail 2 that connects with vertical pole 5 then moves downward with all position things on it.At this, manipulation device 17 structure written treaties are L shaped, and wherein rotating supporting construction 21 is arranged on the position that two support arms (Schenkel) are adjacent to each other.Thus; When the free end of the vertical support arm in left side of upwards pushing manipulation device 17; The free end of the right side horizontal mounting arm of manipulation device 17 leaves corresponding vertical pole 5,6 modes with side direction and moves and make blocking element 18 withdrawals thus, thereby this blocking element no longer is embedded in the groove 20 of upper vertical bar 5,6 (comparison diagram 7).
Up to now; Blocking device 16 tops of ladder 1 release formerly have any a plurality of strut rail 2,3,4; And the blocking device 16 of follow-up strut rail is unlocked subsequently, and ladder 1 moves to the position that has promoted fully together with the part of blocking device 16 tops of its release formerly then.
As visible from Fig. 4 to 6; The jacking block 11,12,13 of bench B, C or vertical pole 5,6,7 are respectively arranged with two director elements 15 that are arranged on each strut rail 2,3 below and extend obliquely from the surface of vertical pole 5,6 along vertical pole 5,6 directions of this bench B, C, shifted laterally body part when together promoting ladder 1 to force on each.
As visible among Fig. 5, each director element 15 is to arrange about the affiliated operating element 14 lateral displacement ground of bench down, thereby for the ladder 1 that together promotes, it is other that this director element 15 is at least partially disposed on this operating element 14.
Claims (12)
1. a telescopic ladder (1), said ladder has a plurality of bench, and wherein each bench comprises two parallel vertical poles (5,6 respectively; 7) and make said vertical pole (5,6,7) strut rail (2 connected to one another in the top; 3,4), and wherein be provided with the vertical pole (5 of at least one following bench of bench on other up; 6,7), the vertical pole (5 of all bench; 6,7) being configured to respectively is hollow, and the wherein said said vertical pole (5 of bench on each; 6) can push said each in addition at least in part and be positioned at the said vertical pole (6,7) of the bench under these bench, and wherein said bench down is respectively arranged with at least one blocking device (16); Said blocking device is locked in flexible state with the said vertical pole (5,6) of said position each bench on it on the one hand, and makes said vertical pole place unlocked position to promote said ladder (1) together on the other hand; Wherein each blocking device (16) has the manipulation device (17) that is arranged in the said strut rail (3,4) on the one hand, also comprises on the other hand being installed in said vertical pole (6; 7) top or be installed in the operating element (14) that the jacking block (12,13) of the upper end of said vertical pole (6,7) is located; Automatically handle the manipulation device (17) of distributing to said position bench on it together when promoting said ladder, and comprise blocking element (18) in addition, said blocking element side direction is passed down the said vertical pole (6 of bench; 7) groove in (19) also is embedded in the respective slot (20) of the said said vertical pole (5,6) of going up bench and pins thus and saidly go up bench, and said blocking element (18) can move to unlocked position and not be embedded into said upper vertical bar (5 through said manipulation device (17); 6) in the said groove (20), it is characterized in that the said vertical pole (5 of bench at least one; 6) or said jacking block (11,12,13) be respectively arranged with at least one at said each strut rail (2; The said bench in also edge that is provided with 3) (B, the direction of said another vertical pole (5,6) C) is from said vertical pole (5; 6) director element that extend obliquely on surface (15), shifted laterally body part when together promoting said ladder (1) to force, wherein each director element (15) be arrange about said operating element (14) the lateral displacement ground of described down bench and for the said ladder (1) that promotes together, to be at least partially disposed on said operating element (14) other.
2. telescopic ladder as claimed in claim 1 (1); It is characterized in that; At at least one vertical pole (6; 7) locate to be provided with respectively two director elements adjacent one another are (15), said director element has the to each other distance bigger than the width of said operating element (14) in said operating element (14) both sides.
3. like each the described telescopic ladder (1) in the aforementioned claim, it is characterized in that, be in two strut rails (2,3 that close up state; 4) distance between is by end block (8,9,10) decision, said end block (8; 9,10) lay respectively at the lower end of said vertical pole (5,6,7).
4. as each the described telescopic ladder (1) in the aforementioned claim, it is characterized in that, at least one director element (15) be arranged on below be provided with the downside place of the jacking block (11,12) of the bench of other bench.
5. like each the described telescopic ladder (1) in the aforementioned claim, it is characterized in that at least one blocking device (16) is arranged in the strut rail (3) of the bench that is provided with other bench up.
6. like each the described telescopic ladder (1) in the aforementioned claim; It is characterized in that; The top of at least one operating element (14) is configured to dwindle gradually; And the seamed edge face of the diagonally extending of said operating element (14) has at least 60 ° and less than 90 ° angle [alpha] with respect to the orientation of the strut rail (3,4) of said correspondence.
7. like each the described telescopic ladder (1) in the aforementioned claim, it is characterized in that at least one operating element (14) has ladder in the top.
8. like each the described telescopic ladder (1) in the aforementioned claim; It is characterized in that the lateral distance EL of at least one director element (15) the lateral distance EB at the said operating element of regional internal ratio (14) at the edge that for the ladder (1) that promotes together, is lateral to said operating element (14) at least is big.
9. as each the described telescopic ladder (1) in the aforementioned claim, it is characterized in that at least one director element (15) has about said vertical pole (5,6,7) and is 30 ° angle beta to the maximum.
10. like each the described telescopic ladder (1) in the aforementioned claim, it is characterized in that at least one director element (15) does not have ladder in its lower end.
11. each the described telescopic ladder (1) as in the aforementioned claim is characterized in that said at least one director element (15) does not have the gap with respect to said vertical pole (6) in its lower end.
12. each the described telescopic ladder (1) as in the aforementioned claim is characterized in that packing in the said vertical pole (6) in the lower end of at least one director element (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110001227 DE102011001227B4 (en) | 2011-03-11 | 2011-03-11 | Telescopic ladder |
| DE102011001227.3 | 2011-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266183U true CN202266183U (en) | 2012-06-06 |
Family
ID=46156981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204205286U Expired - Lifetime CN202266183U (en) | 2011-03-11 | 2011-10-28 | Telescopic ladder |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN202266183U (en) |
| DE (1) | DE102011001227B4 (en) |
| HK (1) | HK1154750A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040493A1 (en) * | 2016-08-31 | 2018-03-08 | 东莞威信运动用品有限公司 | Shock-absorbing guiding structure for extension tube |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014010305U1 (en) * | 2013-08-09 | 2015-03-11 | Patentselskabet Af 10. December 2010 Aps | Collapsible ladder |
| CN107558924B (en) * | 2017-09-22 | 2019-08-13 | 王洁琳 | A kind of telescopic steel construction folded ladder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2436584B (en) * | 2006-03-30 | 2011-08-31 | Norman William Liefke | An extension ladder with improved mechanism |
-
2011
- 2011-03-11 DE DE201110001227 patent/DE102011001227B4/en not_active Expired - Fee Related
- 2011-10-28 CN CN2011204205286U patent/CN202266183U/en not_active Expired - Lifetime
- 2011-11-25 HK HK11112828A patent/HK1154750A2/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040493A1 (en) * | 2016-08-31 | 2018-03-08 | 东莞威信运动用品有限公司 | Shock-absorbing guiding structure for extension tube |
| GB2567606A (en) * | 2016-08-31 | 2019-04-17 | Dongguan Prestige Sporting Products Co Ltd | Shock-absorbing guiding structure for extension tube |
| GB2567606B (en) * | 2016-08-31 | 2021-12-29 | Dongguan Prestige Sporting Products Co Ltd | Buffer guiding structure for extension tube |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011001227A1 (en) | 2012-09-13 |
| HK1154750A2 (en) | 2012-04-27 |
| DE102011001227B4 (en) | 2013-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |
|
| CX01 | Expiry of patent term |